:root {
    --bg: #0f172a;
    --surface: #111827;
    --card: #1f2937;
    --border: #374151;
    --text: #f9fafb;
    --muted: #9ca3af;
    --primary: #6366f1;
    --primary-hover: #4f46e5;
    --success: #10b981;
    --error: #ef4444;
    --info: #38bdf8;
}

* { box-sizing: border-box; }

html {
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

body {
    margin: 0;
    font-family: "Segoe UI", Tahoma, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
    overflow-x: clip;
}

body.panel-nav-open {
    overflow: hidden;
}

img,
video,
canvas,
iframe {
    max-width: 100%;
}

a { color: inherit; text-decoration: none; }

.auth-body {
    min-height: 100vh;
    scroll-behavior: smooth;
    background:
        radial-gradient(circle at 15% 20%, rgba(99, 102, 241, 0.18), transparent 32%),
        radial-gradient(circle at 85% 80%, rgba(139, 92, 246, 0.12), transparent 28%),
        linear-gradient(160deg, #0b1220 0%, #0f172a 45%, #111827 100%);
}

.auth-body--home {
    height: 100dvh;
    max-height: 100dvh;
    min-height: 100dvh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.auth-body--home .auth-page--home {
    flex: 1;
    min-height: 0;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.auth-body--home .auth-hero {
    flex: 1;
    min-height: 0;
    padding: 0;
    overflow: hidden;
}

.auth-body--home .auth-page-layout {
    flex: 1;
    width: 100%;
    max-width: 1180px;
    min-height: 0;
    max-height: 100%;
    margin: 0 auto;
    padding: 8px 32px;
    gap: 28px;
    align-items: center;
}

.auth-body--home .auth-showcase {
    height: 100%;
    max-height: 100%;
    display: flex;
    flex-direction: column;
    min-height: 0;
}

.auth-body--home .auth-showcase-frame {
    flex: 1;
    width: 100%;
    min-height: 0;
    max-height: calc(100dvh - 168px);
    aspect-ratio: 16 / 10;
}

.auth-body--home .auth-showcase-caption {
    padding: 14px 18px 12px;
}

.auth-body--home .auth-showcase-slide-kicker {
    margin-bottom: 6px;
    padding: 4px 8px;
    font-size: 0.66rem;
}

.auth-body--home .auth-showcase-dots {
    margin-top: 10px;
}

.auth-body--home .auth-showcase-slide h2 {
    font-size: clamp(1.05rem, 2vw, 1.45rem);
}

.auth-body--home .auth-showcase-slide p {
    font-size: 0.86rem;
    line-height: 1.45;
}

.auth-body--home .auth-container {
    max-height: 100%;
}

.auth-body--home .auth-card {
    padding: 22px 24px;
}

.auth-body--home .auth-header {
    margin-bottom: 16px;
}

.auth-body--home .auth-header h2 {
    font-size: 1.35rem;
}

.auth-body--home .auth-form {
    gap: 14px;
}

.auth-body--home .site-footer {
    flex-shrink: 0;
    padding: 8px 16px;
}

.auth-body--home .site-navbar-inner {
    padding: 8px 24px;
}

.auth-body--home .site-navbar-logo {
    width: 58px;
    max-width: 58px;
}

@media (max-width: 980px) {
    .auth-body--home .auth-page-layout {
        grid-template-columns: 1fr;
        grid-template-rows: minmax(0, 1fr) auto;
        justify-items: center;
        padding: 6px 16px;
        gap: 10px;
        align-items: stretch;
    }

    .auth-body--home .auth-showcase {
        width: 100%;
        max-width: 560px;
        height: 100%;
        min-height: 0;
    }

    .auth-body--home .auth-showcase-frame {
        max-height: min(34dvh, 260px);
        min-height: 150px;
    }

    .auth-body--home .auth-container {
        width: 100%;
        max-width: 460px;
    }
}

@media (max-height: 720px) and (min-width: 981px) {
    .auth-body--home .auth-showcase-frame {
        max-height: calc(100dvh - 180px);
    }

    .auth-body--home .auth-card {
        padding: 16px 20px;
    }

    .auth-body--home .auth-header {
        margin-bottom: 12px;
    }

    .auth-body--home .auth-form {
        gap: 10px;
    }
}

@media (max-width: 560px) {
    .auth-body--home .auth-card {
        padding: 18px 18px;
    }

    .auth-body--home .auth-header h2 {
        font-size: 1.2rem;
    }
}

.site-page {
    min-height: calc(100vh - 72px);
}

.site-section--page {
    min-height: calc(100vh - 72px);
    padding-top: 48px;
    padding-bottom: 48px;
}

.site-section--page:first-child {
    padding-top: 36px;
}

.auth-page {
    min-height: 100vh;
}

.auth-hero {
    min-height: calc(100vh - 72px);
    display: flex;
    align-items: center;
    padding-top: 12px;
}

.site-navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(11, 18, 32, 0.94);
    backdrop-filter: blur(18px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.18);
}

.site-navbar-inner {
    max-width: 1180px;
    margin: 0 auto;
    padding: 10px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.site-navbar-brand {
    display: inline-flex;
    align-items: center;
    gap: 14px;
    min-width: 0;
    padding: 2px 0;
}

.site-navbar-logo {
    width: 68px;
    max-width: 68px;
    height: auto;
    flex-shrink: 0;
    background: transparent;
    border-radius: 0;
    object-fit: contain;
}

.site-navbar-brand-text {
    font-size: 0.98rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    white-space: nowrap;
}

.site-navbar-menu {
    display: flex;
    align-items: center;
    gap: 8px;
}

.site-navbar-link {
    padding: 9px 14px;
    border-radius: 10px;
    color: #d1d5db;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.15s ease, background 0.15s ease;
}

.site-navbar-link:hover,
.site-navbar-link.is-active {
    color: #fff;
    background: rgba(99, 102, 241, 0.14);
}

.site-navbar-cta {
    margin-left: 6px;
    box-shadow: 0 8px 20px rgba(99, 102, 241, 0.25);
}

.site-navbar-toggle {
    display: none;
    width: 42px;
    height: 42px;
    padding: 0;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.04);
    cursor: pointer;
}

.site-navbar-toggle span {
    display: block;
    width: 18px;
    height: 2px;
    margin: 4px auto;
    border-radius: 999px;
    background: #e5e7eb;
    transition: transform 0.2s ease, opacity 0.2s ease;
}

.site-section {
    padding: 72px 24px;
}

.site-section--alt {
    background: rgba(255, 255, 255, 0.02);
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.site-section-inner {
    max-width: 1180px;
    margin: 0 auto;
}

.site-section-head {
    max-width: 720px;
    margin-bottom: 36px;
}

.site-section--about .site-section-head {
    max-width: none;
}

.site-section--about .site-section-head p {
    max-width: none;
    text-align: justify;
}

.site-inline-link {
    color: #c7d2fe;
    font-weight: 600;
    text-decoration: underline;
    text-decoration-color: rgba(199, 210, 254, 0.45);
    text-underline-offset: 3px;
    transition: color 0.15s ease, text-decoration-color 0.15s ease;
}

.site-inline-link:hover {
    color: #fff;
    text-decoration-color: rgba(255, 255, 255, 0.7);
}

.site-section--founder .site-section-head {
    max-width: none;
    margin-bottom: 24px;
}

.site-founder-shell {
    display: grid;
    grid-template-columns: minmax(250px, 300px) minmax(0, 1fr);
    grid-template-areas:
        "nav nav"
        "sidebar main";
    gap: 28px;
    align-items: start;
}

.site-founder-nav {
    grid-area: nav;
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
    margin-bottom: 0;
}

.site-founder-sidebar {
    grid-area: sidebar;
    display: flex;
    flex-direction: column;
    gap: 14px;
    position: sticky;
    top: 92px;
}

.site-founder-main {
    grid-area: main;
    min-width: 0;
}

.site-founder-profile--hero {
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(17, 24, 39, 0.72);
}

.site-founder-profile-trigger {
    display: none;
}

.site-founder-modal {
    position: fixed;
    inset: 0;
    z-index: 220;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding: 0;
}

.site-founder-modal[hidden] {
    display: none !important;
}

.site-founder-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(2, 6, 23, 0.72);
    backdrop-filter: blur(4px);
}

.site-founder-modal-dialog {
    position: relative;
    z-index: 1;
    width: min(100%, 720px);
    max-height: min(88vh, 760px);
    display: flex;
    flex-direction: column;
    border-radius: 20px 20px 0 0;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-bottom: 0;
    background: rgba(11, 18, 32, 0.98);
    box-shadow: 0 -18px 48px rgba(0, 0, 0, 0.35);
    animation: founderModalIn 0.24s ease;
}

@keyframes founderModalIn {
    from {
        transform: translateY(100%);
        opacity: 0.6;
    }

    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.site-founder-modal-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    padding: 18px 18px 14px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.site-founder-modal-header h3 {
    margin: 0 0 6px;
    font-size: 1.1rem;
}

.site-founder-modal-header p {
    margin: 0;
    color: var(--muted);
    font-size: 0.86rem;
    line-height: 1.5;
}

.site-founder-modal-close {
    flex-shrink: 0;
    width: 38px;
    height: 38px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.04);
    color: #e5e7eb;
    font-size: 1.5rem;
    line-height: 1;
    cursor: pointer;
}

.site-founder-modal-body {
    overflow: auto;
    padding: 18px;
    -webkit-overflow-scrolling: touch;
}

.site-founder-modal-body .site-founder-copy {
    padding: 0;
    border: 0;
    background: transparent;
}

.site-founder-modal-body .site-founder-copy p {
    text-align: left;
}

body.founder-modal-open {
    overflow: hidden;
}

.site-founder-nav-card {
    display: block;
    width: 100%;
    margin: 0;
    padding: 18px 16px;
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(17, 24, 39, 0.72);
    text-align: left;
    cursor: pointer;
    font: inherit;
    color: inherit;
    transition: transform 0.16s ease, border-color 0.16s ease, background 0.16s ease, box-shadow 0.16s ease;
}

.site-founder-nav-card h3 {
    margin: 0 0 8px;
    font-size: 0.95rem;
    line-height: 1.35;
}

.site-founder-nav-card p {
    margin: 0;
    color: var(--muted);
    font-size: 0.82rem;
    line-height: 1.5;
}

.site-founder-nav-card:hover {
    transform: translateY(-2px);
    border-color: rgba(129, 140, 248, 0.35);
    background: rgba(30, 41, 59, 0.82);
    box-shadow: 0 12px 24px rgba(15, 23, 42, 0.24);
}

.site-founder-nav-card:focus-visible {
    outline: 2px solid #818cf8;
    outline-offset: 3px;
}

.site-founder-nav-card.is-active {
    border-color: rgba(129, 140, 248, 0.42);
    background: rgba(49, 46, 129, 0.28);
    box-shadow: inset 0 0 0 1px rgba(129, 140, 248, 0.12);
}

.site-founder-profile--sidebar {
    padding: 0;
    overflow: hidden;
    border-radius: 18px;
}

.site-founder-profile--button {
    display: block;
    width: 100%;
    margin: 0;
    text-align: center;
    cursor: pointer;
    font: inherit;
    color: inherit;
    transition: transform 0.16s ease, border-color 0.16s ease, background 0.16s ease, box-shadow 0.16s ease;
}

.site-founder-photo-wrap {
    position: relative;
    aspect-ratio: 4 / 5;
    overflow: hidden;
    background: linear-gradient(180deg, rgba(30, 41, 59, 0.4), rgba(15, 23, 42, 0.9));
}

.site-founder-photo-wrap::after {
    content: "";
    position: absolute;
    inset: auto 0 0;
    height: 42%;
    background: linear-gradient(to top, rgba(11, 18, 32, 0.92), rgba(11, 18, 32, 0));
    pointer-events: none;
}

.site-founder-photo {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center 12%;
    transition: transform 0.35s ease;
}

.site-founder-profile-body {
    padding: 16px 18px 20px;
}

.site-founder-profile-body h3 {
    margin: 0 0 6px;
    font-size: 1.15rem;
    letter-spacing: -0.02em;
}

.site-founder-profile--button:hover {
    transform: translateY(-2px);
    border-color: rgba(129, 140, 248, 0.35);
    background: rgba(30, 41, 59, 0.82);
    box-shadow: 0 16px 32px rgba(15, 23, 42, 0.28);
}

.site-founder-profile--button:hover .site-founder-photo {
    transform: scale(1.03);
}

.site-founder-profile--button:focus-visible {
    outline: 2px solid #818cf8;
    outline-offset: 3px;
}

.site-founder-profile--button.is-active {
    border-color: rgba(129, 140, 248, 0.42);
    background: rgba(49, 46, 129, 0.28);
    box-shadow: inset 0 0 0 1px rgba(129, 140, 248, 0.12);
}

.site-founder-avatar--sidebar {
    width: 88px;
    height: 88px;
    margin-bottom: 14px;
    font-size: 1.6rem;
}

.site-founder-profile--sidebar h3 {
    font-size: 1.15rem;
}

.site-founder-sidebar-card {
    padding: 18px;
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(17, 24, 39, 0.72);
}

.site-founder-sidebar-card h3 {
    margin: 0 0 8px;
    font-size: 0.98rem;
    line-height: 1.35;
}

.site-founder-sidebar-card p {
    margin: 0;
    color: var(--muted);
    font-size: 0.84rem;
    line-height: 1.55;
}

.site-founder-sidebar-card.is-active {
    border-color: rgba(129, 140, 248, 0.42);
    background: rgba(49, 46, 129, 0.28);
    box-shadow: inset 0 0 0 1px rgba(129, 140, 248, 0.12);
}

.site-founder-sidebar-card--link {
    display: block;
    color: inherit;
    text-decoration: none;
    transition: transform 0.16s ease, border-color 0.16s ease, background 0.16s ease, box-shadow 0.16s ease;
}

.site-founder-sidebar-card--link:hover {
    transform: translateY(-2px);
    border-color: rgba(129, 140, 248, 0.35);
    background: rgba(30, 41, 59, 0.82);
    box-shadow: 0 12px 24px rgba(15, 23, 42, 0.24);
}

.site-founder-sidebar-card--button {
    display: block;
    width: 100%;
    margin: 0;
    text-align: left;
    cursor: pointer;
    font: inherit;
    color: inherit;
    transition: transform 0.16s ease, border-color 0.16s ease, background 0.16s ease, box-shadow 0.16s ease;
}

.site-founder-sidebar-card--button:hover {
    transform: translateY(-2px);
    border-color: rgba(129, 140, 248, 0.35);
    background: rgba(30, 41, 59, 0.82);
    box-shadow: 0 12px 24px rgba(15, 23, 42, 0.24);
}

.site-founder-sidebar-card--button:focus-visible {
    outline: 2px solid #818cf8;
    outline-offset: 3px;
}

.site-founder-panel {
    display: none;
}

.site-founder-panel.is-active {
    display: block;
}

.site-founder-main {
    min-width: 0;
}

.site-section--founder-story .site-section-head,
.site-section--founder-philosophy .site-section-head {
    max-width: none;
}

.site-section--founder-story .site-section-head p,
.site-section--founder-philosophy .site-section-head p {
    text-align: justify;
}

.site-founder-layout {
    display: grid;
    grid-template-columns: minmax(220px, 280px) minmax(0, 1fr);
    gap: 40px;
    align-items: start;
    margin-bottom: 36px;
}

.site-founder-profile {
    padding: 28px 24px;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(17, 24, 39, 0.72);
    text-align: center;
}

.site-founder-avatar {
    display: grid;
    place-items: center;
    width: 112px;
    height: 112px;
    margin: 0 auto 18px;
    border-radius: 999px;
    background: linear-gradient(135deg, #6366f1, #4338ca);
    color: #fff;
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    box-shadow: 0 16px 36px rgba(99, 102, 241, 0.28);
}

.site-founder-profile h3 {
    margin: 0 0 6px;
    font-size: 1.35rem;
    letter-spacing: -0.02em;
}

.site-founder-role {
    margin: 0 0 8px;
    color: #a5b4fc;
    font-size: 0.95rem;
    font-weight: 600;
}

.site-founder-meta {
    margin: 0;
    color: var(--muted);
    font-size: 0.88rem;
}

.site-founder-copy {
    padding: 28px 30px;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(17, 24, 39, 0.52);
}

.site-founder-copy p {
    margin: 0 0 16px;
    color: var(--muted);
    font-size: 1rem;
    line-height: 1.75;
    text-align: justify;
}

.site-founder-copy p:last-child {
    margin-bottom: 0;
}

.site-founder-highlights {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.site-feature-card--link {
    display: block;
    color: inherit;
    text-decoration: none;
    transition: transform 0.18s ease, border-color 0.18s ease, background 0.18s ease, box-shadow 0.18s ease;
}

.site-feature-card--link:hover {
    transform: translateY(-3px);
    border-color: rgba(129, 140, 248, 0.35);
    background: rgba(30, 41, 59, 0.82);
    box-shadow: 0 16px 32px rgba(15, 23, 42, 0.28);
}

.site-feature-card--link:focus-visible {
    outline: 2px solid #818cf8;
    outline-offset: 3px;
}

.site-feature-card-cta {
    display: inline-block;
    margin-top: 14px;
    color: #a5b4fc;
    font-size: 0.86rem;
    font-weight: 600;
}

.site-feature-card--link:hover .site-feature-card-cta {
    color: #fff;
}

.site-page-top {
    display: flex;
    justify-content: flex-end;
    margin-bottom: 20px;
}

.site-page-back {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: #a5b4fc;
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
    transition: color 0.15s ease;
}

.site-page-back:hover {
    color: #fff;
}

.site-section--founder-bio .site-section-head {
    max-width: none;
}

.site-section--founder-bio .site-section-head p {
    text-align: justify;
}

.site-section--founder-cv .site-section-head {
    max-width: none;
}

.site-section--founder-cv .site-section-head p {
    text-align: justify;
}

.site-founder-copy--solo {
    max-width: none;
}

.site-founder-bio-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.site-section-kicker {
    display: inline-block;
    margin-bottom: 10px;
    color: #a5b4fc;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.site-section-head h2 {
    margin: 0 0 12px;
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    letter-spacing: -0.03em;
}

.site-section-head p {
    margin: 0;
    color: var(--muted);
    font-size: 1rem;
    line-height: 1.7;
}

.site-feature-grid,
.site-service-grid,
.site-contact-grid {
    display: grid;
    gap: 18px;
}

.site-feature-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.site-service-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.site-contact-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.site-feature-card,
.site-service-card,
.site-contact-card {
    padding: 24px;
    border-radius: 18px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(17, 24, 39, 0.72);
}

.site-feature-card h3,
.site-service-card h3,
.site-contact-card h3 {
    margin: 0 0 10px;
    font-size: 1.05rem;
}

.site-feature-card p,
.site-service-card p,
.site-contact-card p {
    margin: 0;
    color: var(--muted);
    line-height: 1.65;
    font-size: 0.92rem;
}

.site-service-card strong {
    display: inline-block;
    margin-bottom: 12px;
    color: #a5b4fc;
    font-size: 0.82rem;
    letter-spacing: 0.08em;
}

.site-footer {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(8, 12, 22, 0.92);
    padding: 24px;
}

.site-footer-inner {
    max-width: 1180px;
    margin: 0 auto;
    text-align: center;
}

.site-footer-inner p {
    margin: 0;
    color: var(--muted);
    font-size: 0.88rem;
}

.site-footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}

.site-footer-links a {
    color: #d1d5db;
    font-size: 0.88rem;
}

.site-footer-links a:hover {
    color: #fff;
}

.site-section--mobile-app {
    padding-top: 56px;
    padding-bottom: 72px;
    scroll-margin-top: 84px;
}

.site-mobile-app-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(260px, 0.9fr);
    gap: 40px;
    align-items: center;
}

.site-mobile-app-copy .site-section-head {
    margin-bottom: 24px;
}

.site-mobile-app-features {
    margin: 0 0 28px;
    padding: 0;
    list-style: none;
    display: grid;
    gap: 12px;
}

.site-mobile-app-features li {
    position: relative;
    padding-left: 28px;
    color: #d1d5db;
    font-size: 0.95rem;
    line-height: 1.55;
}

.site-mobile-app-features li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.55em;
    width: 10px;
    height: 10px;
    border-radius: 999px;
    background: linear-gradient(135deg, #818cf8, #6366f1);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.14);
}

.site-app-downloads {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
    margin-bottom: 20px;
}

.site-app-download-card {
    display: flex;
    flex-direction: column;
    gap: 14px;
    padding: 20px;
    border-radius: 18px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(17, 24, 39, 0.78);
}

.site-app-download-card.is-unavailable {
    opacity: 0.82;
}

.site-app-download-card-head {
    display: flex;
    align-items: flex-start;
    gap: 14px;
}

.site-app-download-card-head h3 {
    margin: 0 0 4px;
    font-size: 1.02rem;
}

.site-app-download-card-head p {
    margin: 0;
    color: var(--muted);
    font-size: 0.88rem;
    line-height: 1.5;
}

.site-app-download-icon {
    display: inline-flex;
    width: 42px;
    height: 42px;
    flex-shrink: 0;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    background: rgba(99, 102, 241, 0.16);
    color: #c7d2fe;
}

.site-app-download-icon svg {
    width: 22px;
    height: 22px;
}

.site-app-download-btn {
    width: 100%;
    justify-content: center;
}

.site-app-download-btn.is-disabled {
    pointer-events: none;
    opacity: 0.55;
}

.site-app-download-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 0;
    color: var(--muted);
    font-size: 0.8rem;
}

.site-app-install-notes {
    padding: 16px 18px;
    border-radius: 14px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(15, 23, 42, 0.72);
}

.site-app-install-notes p {
    margin: 0;
    color: #d1d5db;
    font-size: 0.88rem;
    line-height: 1.6;
}

.site-app-install-notes p + p {
    margin-top: 10px;
}

.site-app-install-notes strong {
    color: #fff;
}

.site-mobile-app-visual {
    display: flex;
    justify-content: center;
}

.site-mobile-app-phone {
    position: relative;
    width: min(280px, 100%);
    aspect-ratio: 9 / 18;
    padding: 14px 12px 18px;
    border-radius: 34px;
    border: 1px solid rgba(255, 255, 255, 0.14);
    background: linear-gradient(180deg, rgba(30, 41, 59, 0.95), rgba(15, 23, 42, 0.98));
    box-shadow:
        0 24px 50px rgba(0, 0, 0, 0.35),
        inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.site-mobile-app-phone-notch {
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    width: 92px;
    height: 22px;
    border-radius: 0 0 16px 16px;
    background: rgba(8, 12, 22, 0.95);
}

.site-mobile-app-phone-screen {
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 14px;
    padding: 42px 20px 24px;
    border-radius: 24px;
    background:
        radial-gradient(circle at 50% 0%, rgba(99, 102, 241, 0.22), transparent 55%),
        rgba(17, 24, 39, 0.92);
    text-align: center;
}

.site-mobile-app-phone-logo {
    width: 72px;
    height: auto;
}

.site-mobile-app-phone-title {
    margin: 0;
    font-size: 1.05rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.site-mobile-app-phone-subtitle {
    margin: 0;
    color: var(--muted);
    font-size: 0.82rem;
    line-height: 1.55;
}

@media (max-width: 980px) {
    .site-mobile-app-layout {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .site-mobile-app-visual {
        order: -1;
    }

    .site-mobile-app-phone {
        width: min(240px, 72vw);
    }
}

@media (max-width: 640px) {
    .site-section--mobile-app {
        padding-top: 48px;
        padding-bottom: 56px;
    }

    .site-app-downloads {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 980px) {
    .site-feature-grid,
    .site-contact-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .site-founder-layout {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .site-founder-highlights {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .site-founder-bio-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .auth-hero {
        min-height: auto;
        padding-top: 8px;
    }
}

@media (max-width: 820px) {
    .site-section--founder.site-section--page {
        min-height: 0;
        padding-top: 20px;
        padding-bottom: 32px;
    }

    .site-section--founder .site-section-head {
        margin-bottom: 14px;
        text-align: center;
    }

    .site-section--founder .site-section-head h2 {
        font-size: 1.5rem;
    }

    .site-section--founder .site-section-head p {
        text-align: center;
        line-height: 1.55;
        font-size: 0.92rem;
    }

    .site-founder-shell {
        display: flex;
        flex-direction: column;
        gap: 16px;
    }

    .site-founder-sidebar {
        position: static;
        order: 1;
    }

    .site-founder-nav {
        order: 2;
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 10px;
        overflow: visible;
        padding-bottom: 0;
    }

    .site-founder-main {
        display: none !important;
    }

    .site-founder-profile--hero {
        border-radius: 20px;
        overflow: hidden;
    }

    .site-founder-photo-wrap {
        aspect-ratio: 3 / 4;
        max-height: min(68vh, 520px);
        min-height: 280px;
    }

    .site-founder-photo-wrap::after {
        height: 38%;
    }

    .site-founder-profile-body {
        padding: 18px 16px 20px;
        text-align: center;
    }

    .site-founder-profile-body h3 {
        font-size: 1.2rem;
    }

    .site-founder-nav-card {
        flex: initial;
        padding: 14px 12px;
    }

    .site-founder-nav-card h3 {
        font-size: 0.86rem;
        margin-bottom: 6px;
    }

    .site-founder-nav-card p {
        font-size: 0.76rem;
        line-height: 1.45;
        display: -webkit-box;
        -webkit-line-clamp: 3;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    .site-founder-nav-card:hover {
        transform: none;
    }

    .site-founder-modal-dialog {
        max-height: 90vh;
        border-radius: 18px 18px 0 0;
    }

    .site-founder-modal-body .site-founder-copy p {
        font-size: 0.94rem;
        line-height: 1.65;
    }
}

@media (max-width: 820px) {
    .site-navbar-toggle {
        display: block;
    }

    .site-navbar-menu {
        position: absolute;
        top: calc(100% + 8px);
        left: 16px;
        right: 16px;
        display: none;
        flex-direction: column;
        align-items: stretch;
        padding: 12px;
        border-radius: 16px;
        border: 1px solid rgba(255, 255, 255, 0.08);
        background: rgba(11, 18, 32, 0.96);
        box-shadow: 0 20px 40px rgba(0, 0, 0, 0.35);
    }

    .site-navbar-menu.is-open {
        display: flex;
    }

    .site-navbar {
        position: sticky;
    }

    .site-navbar-inner {
        position: relative;
        flex-wrap: wrap;
    }

    .site-navbar-cta {
        margin-left: 0;
        width: 100%;
    }

    .site-navbar-brand-text {
        display: none;
    }
}

@media (max-width: 640px) {
    .site-feature-grid,
    .site-service-grid,
    .site-contact-grid,
    .site-founder-highlights,
    .site-founder-bio-grid {
        grid-template-columns: 1fr;
    }

    .site-section {
        padding: 56px 20px;
    }

    .site-section.site-section--founder.site-section--page {
        padding: 20px 14px 28px;
    }

    .site-section--founder .site-section-head h2 {
        font-size: 1.35rem;
    }

    .site-founder-photo-wrap {
        max-height: min(62vh, 460px);
        min-height: 240px;
    }

    .site-founder-nav {
        grid-template-columns: 1fr;
    }

    .site-footer-inner {
        flex-direction: column;
        align-items: flex-start;
    }
}

.auth-page-brand {
    text-align: center;
    padding: 20px 24px 4px;
}

.auth-page-brand-mark {
    width: min(150px, 52vw);
    margin: 0 auto;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.22);
}

.auth-page-brand-mark .brand-logo {
    width: 100%;
    height: auto;
    display: block;
}

.auth-page-layout {
    flex: 1;
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(320px, 460px);
    align-items: center;
    gap: 40px;
    width: 100%;
    max-width: 1180px;
    margin: 0 auto;
    padding: 12px 40px 40px;
}

.auth-showcase {
    min-width: 0;
}

.auth-showcase-frame {
    position: relative;
    overflow: hidden;
    border-radius: 24px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(15, 23, 42, 0.72);
    box-shadow:
        0 24px 60px rgba(0, 0, 0, 0.35),
        inset 0 1px 0 rgba(255, 255, 255, 0.06);
    aspect-ratio: 16 / 10;
    min-height: 320px;
}

.auth-showcase-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transform: scale(1.02);
}

.auth-showcase-overlay {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(180deg, rgba(15, 23, 42, 0.08) 0%, rgba(15, 23, 42, 0.55) 58%, rgba(15, 23, 42, 0.92) 100%),
        linear-gradient(90deg, rgba(99, 102, 241, 0.12), transparent 45%);
    pointer-events: none;
}

.auth-showcase-caption {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    padding: 28px 28px 22px;
}

.auth-showcase-slide {
    display: none;
    max-width: 520px;
    animation: authSlideIn 0.55s ease;
}

.auth-showcase-slide.is-active {
    display: block;
}

.auth-showcase-slide-kicker {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
    padding: 6px 10px;
    border-radius: 999px;
    background: rgba(99, 102, 241, 0.18);
    border: 1px solid rgba(129, 140, 248, 0.28);
    color: #c7d2fe;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.auth-showcase-slide h2 {
    margin: 0 0 8px;
    font-size: clamp(1.25rem, 2.4vw, 1.75rem);
    line-height: 1.25;
}

.auth-showcase-slide p {
    margin: 0;
    color: rgba(249, 250, 251, 0.82);
    font-size: 0.95rem;
    line-height: 1.55;
    max-width: 46ch;
}

.auth-showcase-dots {
    display: flex;
    gap: 8px;
    margin-top: 18px;
}

.auth-showcase-dot {
    width: 28px;
    height: 4px;
    padding: 0;
    border: 0;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.18);
    cursor: pointer;
    transition: width 0.2s ease, background 0.2s ease;
}

.auth-showcase-dot.is-active {
    width: 42px;
    background: linear-gradient(90deg, var(--primary), #8b5cf6);
}

.auth-container {
    width: 100%;
    max-width: 460px;
    justify-self: end;
    padding: 0;
}

@keyframes authSlideIn {
    from {
        opacity: 0;
        transform: translateY(12px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 980px) {
    .auth-page-layout {
        grid-template-columns: 1fr;
        justify-items: center;
        padding: 8px 20px 28px;
        gap: 24px;
    }

    .auth-showcase {
        width: 100%;
        max-width: 640px;
    }

    .auth-showcase-frame {
        min-height: 260px;
    }

    .auth-container {
        justify-self: center;
    }
}

@media (max-width: 560px) {
    .auth-page-brand {
        padding-top: 20px;
    }

    .auth-showcase-caption {
        padding: 20px 18px 16px;
    }

    .auth-showcase-slide p {
        font-size: 0.88rem;
    }
}

.auth-card {
    background: rgba(17, 24, 39, 0.82);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 22px;
    padding: 32px;
    box-shadow:
        0 24px 60px rgba(0, 0, 0, 0.28),
        inset 0 1px 0 rgba(255, 255, 255, 0.04);
    backdrop-filter: blur(14px);
}

.auth-header { margin-bottom: 24px; }
.auth-header h2 {
    margin: 0 0 8px;
    font-size: 1.55rem;
    letter-spacing: -0.02em;
}
.auth-header p { margin: 0; color: var(--muted); font-size: 0.92rem; }

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.auth-autofill-decoy {
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    opacity: 0;
    pointer-events: none;
}

.auth-field {
    display: block;
}

.auth-field-label {
    display: block;
    margin-bottom: 8px;
    font-size: 0.86rem;
    font-weight: 600;
    color: #d1d5db;
}

.auth-field-control {
    position: relative;
    display: flex;
    align-items: center;
}

.auth-field-icon {
    position: absolute;
    left: 14px;
    width: 18px;
    height: 18px;
    color: var(--muted);
    pointer-events: none;
}

.auth-form input:not([type="checkbox"]) {
    width: 100%;
    padding: 13px 14px 13px 44px;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(11, 18, 32, 0.92);
    color: var(--text);
    font: inherit;
    transition: border-color 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.auth-form input:not([type="checkbox"])::placeholder {
    color: #6b7280;
}

.auth-form input:not([type="checkbox"]):focus {
    outline: none;
    border-color: rgba(129, 140, 248, 0.65);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.16);
    background: rgba(11, 18, 32, 1);
}

.auth-remember {
    display: flex !important;
    flex-direction: row;
    align-items: center;
    justify-content: flex-start;
    gap: 10px;
    margin: 0 !important;
    font-size: 0.88rem;
    color: #cbd5e1;
    cursor: pointer;
    user-select: none;
}

.auth-remember input[type="checkbox"] {
    width: 18px !important;
    min-width: 18px;
    height: 18px;
    margin: 0;
    padding: 0 !important;
    border-radius: 4px;
    border: 1px solid rgba(148, 163, 184, 0.45);
    background: rgba(11, 18, 32, 0.92);
    accent-color: #6366f1;
    cursor: pointer;
    flex-shrink: 0;
    box-shadow: none;
}

.auth-remember span {
    line-height: 1.35;
}

.auth-password-toggle {
    position: absolute;
    right: 8px;
    width: 38px;
    height: 38px;
    display: grid;
    place-items: center;
    border: 0;
    border-radius: 10px;
    background: transparent;
    color: var(--muted);
    cursor: pointer;
    transition: color 0.15s ease, background 0.15s ease;
}

.auth-password-toggle:hover,
.auth-password-toggle.is-visible {
    color: var(--text);
    background: rgba(255, 255, 255, 0.05);
}

.auth-password-icon {
    width: 18px;
    height: 18px;
}

.auth-password-icon--hide {
    display: none;
}

.auth-password-toggle.is-visible .auth-password-icon--show {
    display: none;
}

.auth-password-toggle.is-visible .auth-password-icon--hide {
    display: block;
}

.auth-submit {
    margin-top: 4px;
    min-height: 48px;
    border-radius: 12px;
    font-size: 0.95rem;
    box-shadow: 0 10px 24px rgba(99, 102, 241, 0.28);
}

.auth-card .alert {
    margin-bottom: 18px;
}

.auth-form label {
    display: block;
    margin-bottom: 16px;
    font-size: 0.9rem;
    color: var(--muted);
}

.auth-form label.auth-field {
    margin-bottom: 0;
}

.auth-form label.auth-remember {
    display: inline-flex !important;
    flex-direction: row;
    align-items: center;
    justify-content: flex-start;
    gap: 10px;
    width: auto;
    max-width: 100%;
    margin-bottom: 0 !important;
}

.demo-accounts {
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
    font-size: 0.85rem;
    color: var(--muted);
}

.demo-accounts ul { margin: 8px 0 0; padding-left: 18px; }

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 16px;
    border-radius: 10px;
    border: 1px solid transparent;
    cursor: pointer;
    font-weight: 600;
    font-family: inherit;
    font-size: 0.9rem;
    line-height: 1.2;
    text-decoration: none;
    background: var(--card);
    color: var(--text);
}

.btn-primary {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}
.btn-primary:hover { background: var(--primary-hover); border-color: var(--primary-hover); }

.btn-outline {
    background: var(--surface);
    border-color: var(--border);
    color: var(--text);
}
.btn-outline:hover {
    background: rgba(99, 102, 241, 0.15);
    border-color: var(--primary);
    color: var(--text);
}

.btn-block { width: 100%; }
.btn-sm { padding: 8px 12px; font-size: 0.85rem; }

table .btn { white-space: nowrap; }

.table-compact th,
.table-compact td {
    padding: 10px 12px;
    font-size: 0.8rem;
    vertical-align: top;
}

.table-compact th {
    font-size: 0.78rem;
    white-space: nowrap;
}

.table-compact .col-date {
    white-space: nowrap;
    min-width: 88px;
}

.table-compact .col-nowrap {
    white-space: nowrap;
}

.table-compact .cell-stack span {
    font-size: 0.8rem;
}

.table-compact .cell-sub {
    font-size: 0.72rem;
}

.table-compact .btn-sm {
    padding: 6px 10px;
    font-size: 0.75rem;
}

.alert {
    padding: 12px 14px;
    border-radius: 10px;
    margin-bottom: 16px;
    font-size: 0.9rem;
}

.alert-error { background: rgba(239, 68, 68, 0.15); color: #fecaca; }
.alert-success { background: rgba(16, 185, 129, 0.15); color: #a7f3d0; }

.app-shell { display: flex; min-height: 100vh; }

.sidebar {
    width: 260px;
    background: var(--surface);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    padding: 24px 18px;
    min-height: 100vh;
}

.app-shell > .sidebar {
    flex-shrink: 0;
    overflow-x: hidden;
    overflow-y: auto;
    transition: width 0.22s ease, min-width 0.22s ease, padding 0.22s ease, opacity 0.18s ease, border-width 0.22s ease;
}

@media (min-width: 901px) {
    html.sidebar-collapsed .app-shell > .sidebar {
        width: 0;
        min-width: 0;
        padding-left: 0;
        padding-right: 0;
        border-right-width: 0;
        opacity: 0;
        overflow: hidden;
        pointer-events: none;
    }
}

.brand {
    display: flex;
    gap: 12px;
    align-items: center;
    margin-bottom: 24px;
}

.brand--full-logo {
    display: block;
    margin-bottom: 16px;
}

.brand-icon,
.brand-logo {
    display: block;
    object-fit: contain;
    background: transparent;
    border-radius: 0;
}

.brand-logo--emboss {
    filter:
        drop-shadow(0 1px 0 rgba(255, 255, 255, 0.14))
        drop-shadow(0 -1px 0 rgba(0, 0, 0, 0.38))
        drop-shadow(0 4px 10px rgba(0, 0, 0, 0.3))
        drop-shadow(0 0 12px rgba(99, 102, 241, 0.16));
    transform: translateY(-1px);
}

.brand--full-logo .brand-logo {
    width: 100%;
    max-width: 110px;
    height: auto;
    margin: 0 auto;
}

.brand small { display: block; color: var(--muted); }

.sidebar-nav { display: flex; flex-direction: column; gap: 6px; flex: 1; }

.sidebar-nav a {
    padding: 9px 12px;
    border-radius: 10px;
    color: var(--muted);
    font-size: 0.92rem;
    line-height: 1.35;
}

.sidebar-nav a.active,
.sidebar-nav a:hover {
    background: rgba(99, 102, 241, 0.15);
    color: var(--text);
}

.sidebar-nav-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.sidebar-nav-group > summary {
    list-style: none;
    cursor: pointer;
}

.sidebar-nav-group > summary::-webkit-details-marker {
    display: none;
}

.sidebar-nav-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    padding: 9px 12px;
    border-radius: 10px;
    color: var(--muted);
    font-size: 0.92rem;
    line-height: 1.35;
    user-select: none;
}

.sidebar-nav-group[open] > .sidebar-nav-toggle,
.sidebar-nav-toggle:hover,
.sidebar-nav-group.is-active > .sidebar-nav-toggle {
    background: rgba(99, 102, 241, 0.15);
    color: var(--text);
}

.sidebar-student-picker-toggle {
    position: relative;
    display: flex;
    align-items: center;
    width: 100%;
    padding: 9px 34px 9px 12px;
    border-radius: 10px;
    cursor: pointer;
    user-select: none;
    list-style: none;
}

.sidebar-student-picker-toggle::-webkit-details-marker {
    display: none;
}

.sidebar-student-picker-label {
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--muted);
}

.sidebar-student-picker-name {
    font-size: 0.92rem;
    font-weight: 500;
    line-height: 1.35;
    color: var(--muted);
    word-break: break-word;
}

.sidebar-student-picker[open] > .sidebar-student-picker-toggle,
.sidebar-student-picker-toggle:hover,
.sidebar-student-picker.is-active > .sidebar-student-picker-toggle {
    background: rgba(99, 102, 241, 0.15);
}

.sidebar-student-picker .sidebar-nav-caret {
    position: absolute;
    top: 50%;
    right: 14px;
    margin-top: -5px;
}

.sidebar-student-picker[open] .sidebar-nav-caret {
    margin-top: -1px;
}

.parent-fee-compare-table td:first-child {
    font-weight: 600;
    color: var(--muted);
}

.parent-lesson-compare-table th:not(:first-child),
.parent-lesson-compare-table td:not(:first-child),
.parent-fee-compare-table th:not(:first-child),
.parent-fee-compare-table td:not(:first-child) {
    text-align: center;
    width: 28%;
}

.parent-lesson-compare-table td:first-child,
.parent-fee-compare-table td:first-child {
    font-weight: 600;
    color: var(--muted);
}

.parent-lesson-dual-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
    margin-bottom: 16px;
}

.parent-compare-mobile-cards {
    display: none;
}

.parent-compare-card-title {
    margin: 0 0 10px;
    font-size: 0.95rem;
    font-weight: 600;
}

.parent-fee-collections-title {
    margin: 0 16px 12px;
    font-size: 1rem;
}

.parent-lesson-panel h3 {
    margin: 0 16px 12px;
    font-size: 1rem;
}

.parent-lesson-panel .table-wrap {
    padding: 0 16px 16px;
}

.parent-lesson-panel .table-wrap.mb-16 {
    margin-bottom: 0;
    padding-bottom: 8px;
}

.sidebar-nav-caret {
    width: 8px;
    height: 8px;
    border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    transform: rotate(45deg);
    transition: transform 0.15s ease;
    flex-shrink: 0;
    margin-top: -2px;
}

.sidebar-nav-group[open] .sidebar-nav-caret {
    transform: rotate(-135deg);
    margin-top: 2px;
}

.sidebar-nav-submenu {
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: 2px 0 4px 10px;
    border-left: 1px solid rgba(255, 255, 255, 0.08);
    margin-left: 12px;
}

.sidebar-nav-submenu a {
    padding: 7px 12px;
    border-radius: 8px;
    color: var(--muted);
    font-size: 0.86rem;
    line-height: 1.35;
}

.sidebar-nav-empty {
    padding: 7px 12px;
    color: var(--muted);
    font-size: 0.82rem;
    font-style: italic;
}

.sidebar-footer { margin-top: auto; }

.parent-sidebar-hours-card {
    margin-top: auto;
    flex-shrink: 0;
}

.parent-sidebar-hours-card-header {
    padding: 12px 14px;
    border-bottom: 1px solid var(--border);
    font-size: 0.82rem;
}

.parent-sidebar-hours-card-body {
    padding: 10px 14px 12px;
}

.parent-sidebar-hours-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.parent-sidebar-hours-row {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 10px;
    font-size: 0.82rem;
}

.parent-sidebar-hours-name {
    color: var(--text);
    line-height: 1.35;
    word-break: break-word;
}

.parent-sidebar-hours-value {
    color: var(--muted);
    white-space: nowrap;
    flex-shrink: 0;
}

.parent-sidebar-hours-total {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid var(--border);
    font-size: 0.82rem;
}

.parent-sidebar-hours-total span {
    color: var(--muted);
}

.parent-sidebar-hours-total strong {
    color: var(--text);
    font-size: 0.9rem;
}

.parent-sidebar-hours-fee-btn {
    margin-top: 12px;
}

.parent-sidebar-hours-empty {
    margin: 0;
    color: var(--muted);
    font-size: 0.82rem;
    font-style: italic;
}

.user-chip {
    margin-bottom: 12px;
    padding: 12px;
    background: var(--card);
    border-radius: 10px;
}

.user-chip small { display: block; color: var(--muted); }

.main-area { flex: 1; min-width: 0; display: flex; flex-direction: column; }

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 24px 32px;
    border-bottom: 1px solid var(--border);
    background: rgba(17, 24, 39, 0.6);
}

.topbar h1 { margin: 0; font-size: 1.5rem; }

.topbar-leading {
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 0;
    flex: 1 1 auto;
}

.topbar-leading h1 {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.panel-menu-btn {
    display: inline-flex;
    flex-shrink: 0;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    padding: 0;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.04);
    color: var(--text);
    cursor: pointer;
    touch-action: manipulation;
}

.panel-menu-btn[aria-expanded="true"] {
    border-color: rgba(99, 102, 241, 0.45);
    background: rgba(99, 102, 241, 0.16);
}

.panel-menu-btn-icon {
    display: block;
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: currentColor;
    box-shadow: 0 -6px 0 currentColor, 0 6px 0 currentColor;
}

.panel-nav-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 190;
    border: 0;
    padding: 0;
    background: rgba(2, 6, 23, 0.62);
    backdrop-filter: blur(2px);
}

.panel-nav-backdrop.is-visible {
    display: block;
}

.topbar-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

.topbar-action {
    display: inline-flex;
    align-items: center;
    padding: 8px 14px;
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    font-size: 0.88rem;
    font-weight: 500;
    text-decoration: none;
    background: rgba(255, 255, 255, 0.03);
    transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.topbar-action:hover,
.topbar-action.is-active {
    background: rgba(99, 102, 241, 0.15);
    border-color: rgba(99, 102, 241, 0.35);
    color: var(--text);
}

.topbar-action--logout:hover {
    background: rgba(239, 68, 68, 0.12);
    border-color: rgba(239, 68, 68, 0.35);
    color: #fecaca;
}

.topbar-action-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 18px;
    height: 18px;
    margin-left: 6px;
    padding: 0 5px;
    border-radius: 999px;
    background: #ef4444;
    color: #fff;
    font-size: 0.68rem;
    font-weight: 700;
    line-height: 1;
}

.topbar-action-icon {
    display: none;
    flex-shrink: 0;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.messages-layout {
    display: grid;
    grid-template-columns: 320px minmax(0, 1fr);
    min-height: 560px;
    overflow: hidden;
}

.messages-sidebar {
    display: flex;
    flex-direction: column;
    border-right: 1px solid var(--border);
    min-height: 0;
}

.messages-sidebar-header {
    padding: 16px;
    border-bottom: 1px solid var(--border);
}

.messages-sidebar-header h2 {
    margin: 0 0 12px;
    font-size: 1rem;
}

.messages-new-form {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.messages-new-form select {
    width: 100%;
}

.messages-conversation-list {
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: 8px;
    overflow-y: auto;
    min-height: 0;
}

.messages-empty {
    padding: 16px;
    margin: 0;
}

.messages-conversation-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 12px;
    border: 1px solid transparent;
    border-radius: 10px;
    text-decoration: none;
    color: var(--text);
    background: transparent;
    transition: background 0.15s ease, border-color 0.15s ease;
}

.messages-conversation-item:hover {
    background: rgba(255, 255, 255, 0.03);
    border-color: var(--border);
}

.messages-conversation-item.is-active {
    background: rgba(99, 102, 241, 0.12);
    border-color: rgba(99, 102, 241, 0.35);
}

.messages-conversation-item.has-unread strong {
    color: #fff;
}

.messages-conversation-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}

.messages-conversation-top strong {
    font-size: 0.88rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.messages-conversation-time {
    font-size: 0.72rem;
    color: var(--muted);
    white-space: nowrap;
}

.messages-conversation-meta {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.72rem;
    color: var(--muted);
}

.messages-unread-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 18px;
    height: 18px;
    padding: 0 5px;
    border-radius: 999px;
    background: #ef4444;
    color: #fff;
    font-size: 0.68rem;
    font-weight: 700;
}

.messages-conversation-preview {
    font-size: 0.78rem;
    color: var(--muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.messages-thread {
    display: flex;
    flex-direction: column;
    min-height: 0;
}

.messages-thread-header {
    padding: 16px 18px;
    border-bottom: 1px solid var(--border);
}

.messages-thread-header h2 {
    margin: 0 0 4px;
    font-size: 1.05rem;
}

.messages-thread-body {
    flex: 1;
    min-height: 320px;
    max-height: 520px;
    overflow-y: auto;
    padding: 16px 18px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.messages-thread-empty,
.messages-thread-placeholder {
    padding: 24px 18px;
}

.messages-thread-placeholder {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    flex: 1;
}

.messages-bubble-wrap {
    display: flex;
    justify-content: flex-start;
}

.messages-bubble-wrap.is-mine {
    justify-content: flex-end;
}

.messages-bubble {
    max-width: min(100%, 520px);
    padding: 10px 12px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border);
}

.messages-bubble-wrap.is-mine .messages-bubble {
    background: rgba(99, 102, 241, 0.18);
    border-color: rgba(99, 102, 241, 0.35);
}

.messages-bubble-author {
    display: block;
    margin-bottom: 4px;
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--muted);
}

.messages-bubble-text {
    font-size: 0.88rem;
    line-height: 1.45;
    word-break: break-word;
}

.messages-bubble-time {
    display: block;
    margin-top: 6px;
    font-size: 0.68rem;
    color: var(--muted);
    text-align: right;
}

.messages-compose {
    padding: 14px 18px 18px;
    border-top: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.messages-compose textarea {
    width: 100%;
    min-height: 88px;
    resize: vertical;
}

.messages-compose-actions {
    display: flex;
    justify-content: flex-end;
}

.notifications-header {
    align-items: flex-start;
}

.notifications-list {
    display: flex;
    flex-direction: column;
}

.notifications-item {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 14px 16px;
    border-bottom: 1px solid var(--border);
    text-decoration: none;
    color: var(--text);
    transition: background 0.15s ease;
}

.notifications-item:last-child {
    border-bottom: none;
}

.notifications-item:hover {
    background: rgba(255, 255, 255, 0.03);
}

.notifications-item.is-unread {
    background: rgba(99, 102, 241, 0.08);
}

.notifications-item.is-unread strong {
    color: #fff;
}

.notifications-item-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.notifications-item-top strong {
    font-size: 0.92rem;
}

.notifications-item-time {
    font-size: 0.72rem;
    color: var(--muted);
    white-space: nowrap;
}

.notifications-item-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.78rem;
    color: var(--muted);
}

.notifications-item-body {
    font-size: 0.84rem;
    line-height: 1.45;
    color: var(--text);
}

.notifications-item--retake-pending {
    border-left: 4px solid #eab308;
    background: rgba(234, 179, 8, 0.12);
}

.notifications-item--retake-pending.is-unread {
    background: rgba(234, 179, 8, 0.18);
}

.notifications-item--retake-granted {
    border-left: 4px solid #22c55e;
    background: rgba(34, 197, 94, 0.12);
}

.notifications-item--retake-granted.is-unread {
    background: rgba(34, 197, 94, 0.18);
}

.practice-exam-retake--pending,
tr.practice-exam-retake--pending {
    background: rgba(234, 179, 8, 0.12);
}

.practice-exam-retake--pending.curriculum-list-card {
    border-left: 4px solid #eab308;
}

.practice-exam-retake--granted,
tr.practice-exam-retake--granted {
    background: rgba(34, 197, 94, 0.12);
}

.practice-exam-retake--granted.curriculum-list-card {
    border-left: 4px solid #22c55e;
}

.practice-exam-retake-note--pending {
    color: #eab308;
    font-weight: 600;
}

.practice-exam-retake-note--granted {
    color: #22c55e;
    font-weight: 600;
}

.practice-exam-request-btn {
    background: rgba(234, 179, 8, 0.18);
    border: 1px solid rgba(234, 179, 8, 0.55);
    color: #fde68a;
}

.practice-exam-request-btn:hover {
    background: rgba(234, 179, 8, 0.28);
    border-color: #eab308;
    color: #fff;
}

.homework-review-hub {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.homework-review-stats {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 10px;
}

.homework-review-stat {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    padding: 14px 16px;
    text-decoration: none;
    color: inherit;
    transition: transform 0.15s, border-color 0.15s, box-shadow 0.15s;
}

.homework-review-stat:hover {
    transform: translateY(-2px);
    border-color: rgba(56, 189, 248, 0.35);
    box-shadow: 0 8px 24px rgba(15, 23, 42, 0.35);
}

.homework-review-stat.is-active {
    border-color: rgba(56, 189, 248, 0.55);
    box-shadow: inset 0 0 0 1px rgba(56, 189, 248, 0.25);
}

.homework-review-stat-icon {
    font-size: 1.1rem;
    line-height: 1;
    opacity: 0.9;
}

.homework-review-stat-label {
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--muted);
    letter-spacing: 0.02em;
}

.homework-review-stat-value {
    font-size: 1.65rem;
    font-weight: 800;
    line-height: 1.1;
}

.homework-review-stat--pending .homework-review-stat-value { color: #38bdf8; }
.homework-review-stat--done .homework-review-stat-value { color: #34d399; }
.homework-review-stat--late .homework-review-stat-value { color: #fbbf24; }
.homework-review-stat--overdue .homework-review-stat-value { color: #f87171; }

.homework-review-toolbar-card {
    padding: 16px 18px;
}

.homework-review-toolbar {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.homework-review-toolbar-search {
    position: relative;
    width: 100%;
}

.homework-review-search-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.95rem;
    opacity: 0.55;
    pointer-events: none;
}

.homework-review-search {
    width: 100%;
    padding: 12px 14px 12px 42px;
    border-radius: 14px;
    border: 1px solid var(--border);
    background: #0b1220;
    color: var(--text);
    font-family: inherit;
    font-size: 0.92rem;
}

.homework-review-search:focus {
    outline: none;
    border-color: rgba(56, 189, 248, 0.55);
    box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.12);
}

.homework-review-toolbar-filters {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.homework-review-toolbar-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    min-width: 0;
}

.homework-review-toolbar-label {
    font-size: 0.76rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--muted);
}

.homework-review-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.homework-review-pill {
    display: inline-flex;
    align-items: center;
    padding: 8px 14px;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: rgba(15, 23, 42, 0.65);
    color: var(--text);
    font-size: 0.84rem;
    font-weight: 600;
    text-decoration: none;
    transition: border-color 0.15s, background 0.15s, color 0.15s, transform 0.12s;
}

.homework-review-pill:hover {
    border-color: rgba(56, 189, 248, 0.45);
    color: #fff;
    transform: translateY(-1px);
}

.homework-review-pill.is-active {
    background: rgba(56, 189, 248, 0.16);
    border-color: rgba(56, 189, 248, 0.55);
    color: #7dd3fc;
}

.homework-review-pill--source-teacher.is-active {
    background: rgba(59, 130, 246, 0.16);
    border-color: rgba(59, 130, 246, 0.5);
    color: #93c5fd;
}

.homework-review-pill--source-student.is-active {
    background: rgba(245, 158, 11, 0.16);
    border-color: rgba(245, 158, 11, 0.5);
    color: #fcd34d;
}

.homework-review-pill--status-pending.is-active {
    background: rgba(56, 189, 248, 0.16);
    border-color: rgba(56, 189, 248, 0.55);
    color: #7dd3fc;
}

.homework-review-pill--status-done.is-active {
    background: rgba(52, 211, 153, 0.14);
    border-color: rgba(52, 211, 153, 0.45);
    color: #6ee7b7;
}

.homework-review-pill--status-done_late.is-active {
    background: rgba(251, 191, 36, 0.14);
    border-color: rgba(251, 191, 36, 0.45);
    color: #fcd34d;
}

.homework-review-toolbar-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.homework-review-list-header {
    padding-bottom: 12px;
}

.homework-review-list-heading h2 {
    margin: 0;
    font-size: 1.08rem;
}

.homework-review-list-subtitle {
    margin: 4px 0 0;
    font-size: 0.84rem;
    color: var(--muted);
}

.homework-review-list-card-wrap {
    overflow: hidden;
}

.homework-review-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 10px;
    padding: 28px 16px 32px;
}

.homework-review-empty-icon {
    font-size: 2rem;
    opacity: 0.7;
}

.homework-review-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 14px;
    padding: 0 16px 18px;
}

.homework-review-card {
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 16px;
    border: 1px solid var(--border);
    border-radius: 16px;
    background: linear-gradient(180deg, rgba(15, 23, 42, 0.72), rgba(11, 18, 32, 0.92));
    transition: border-color 0.15s, box-shadow 0.15s, transform 0.15s;
}

.homework-review-card:hover {
    border-color: rgba(56, 189, 248, 0.35);
    box-shadow: 0 10px 28px rgba(15, 23, 42, 0.45);
    transform: translateY(-2px);
}

.homework-review-card--needs-review {
    border-color: rgba(56, 189, 248, 0.45);
    box-shadow: inset 0 0 0 1px rgba(56, 189, 248, 0.12);
}

.homework-review-card-flag {
    align-self: flex-start;
    padding: 4px 10px;
    border-radius: 999px;
    background: rgba(56, 189, 248, 0.18);
    color: #7dd3fc;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.03em;
    text-transform: uppercase;
}

.homework-review-card-top {
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 12px;
    align-items: start;
}

.homework-review-card-main {
    min-width: 0;
}

.homework-review-card-title {
    margin: 0;
    font-size: 1rem;
    font-weight: 700;
    line-height: 1.3;
}

.homework-review-card-book {
    margin: 4px 0 0;
    font-size: 0.86rem;
    color: var(--muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.homework-review-card-due {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 2px;
    text-align: right;
    flex-shrink: 0;
}

.homework-review-due-relative {
    font-size: 0.72rem;
    font-weight: 600;
}

.homework-review-card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.homework-review-tag {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 0.74rem;
    font-weight: 600;
}

.homework-review-tag--assigner.homework-source--teacher {
    background: rgba(59, 130, 246, 0.14);
    color: #93c5fd;
}

.homework-review-tag--assigner.homework-source--student {
    background: rgba(245, 158, 11, 0.16);
    color: #fcd34d;
}

.homework-review-tag--status,
.homework-review-tag--workflow {
    border: none;
}

.homework-review-avatar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 14px;
    background: linear-gradient(135deg, rgba(56, 189, 248, 0.24), rgba(99, 102, 241, 0.24));
    color: #e0f2fe;
    font-size: 0.82rem;
    font-weight: 800;
    letter-spacing: 0.03em;
    flex-shrink: 0;
}

.homework-review-progress {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.homework-review-progress-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    font-size: 0.78rem;
    color: var(--muted);
}

.homework-review-progress-meta strong {
    color: var(--text);
    font-size: 0.82rem;
}

.homework-review-progress-bar {
    height: 7px;
    border-radius: 999px;
    background: rgba(148, 163, 184, 0.14);
    overflow: hidden;
}

.homework-review-progress-bar span {
    display: block;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, #38bdf8, #6366f1);
    transition: width 0.25s ease;
}

.homework-review-progress-bar--done span,
.homework-review-progress-bar--done_late span {
    background: linear-gradient(90deg, #34d399, #10b981);
}

.homework-review-progress-bar--pending span {
    background: linear-gradient(90deg, #64748b, #475569);
}

.homework-review-card-outcome {
    margin: 0;
    padding: 10px 12px;
    border-radius: 10px;
    background: rgba(148, 163, 184, 0.08);
    font-size: 0.82rem;
    color: var(--muted);
    line-height: 1.45;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.homework-review-card-footer {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: auto;
    padding-top: 4px;
}

.homework-review-delete-form {
    margin-left: auto;
}

.homework-review-due--overdue {
    color: #fca5a5;
    font-weight: 700;
}

.homework-review-due--soon {
    color: #fcd34d;
    font-weight: 600;
}

.homework-review-row--overdue,
.homework-review-card.homework-review-row--overdue {
    border-color: rgba(248, 113, 113, 0.35);
    background: linear-gradient(180deg, rgba(248, 113, 113, 0.08), rgba(11, 18, 32, 0.92));
}

.homework-review-row--due-soon,
.homework-review-card.homework-review-row--due-soon {
    border-color: rgba(251, 191, 36, 0.28);
}

.homework-review-row--submitted,
.homework-review-card.homework-review-row--submitted {
    border-left: 3px solid rgba(56, 189, 248, 0.65);
}

.homework-source-badge {
    font-size: 0.72rem;
    font-weight: 600;
}

.homework-source--teacher {
    background: rgba(59, 130, 246, 0.14);
    color: #1d4ed8;
}

.homework-source--student {
    background: rgba(245, 158, 11, 0.16);
    color: #b45309;
}

.notifications-item--student-homework {
    border-left: 3px solid #f59e0b;
}

.content { padding: 24px 32px 40px; min-width: 0; }

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stats-grid--compact {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
    margin-bottom: 20px;
}

.admin-dashboard-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(280px, 340px);
    gap: 16px;
    align-items: start;
}

.admin-dashboard-main {
    min-width: 0;
}

.admin-dashboard-main .stats-grid--compact {
    margin-bottom: 0;
}

.admin-dashboard-schedule {
    position: sticky;
    top: 12px;
    display: flex;
    flex-direction: column;
    max-height: calc(100vh - 96px);
    overflow: hidden;
}

.admin-dashboard-schedule-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 10px;
    padding: 16px 16px 10px;
    border-bottom: 1px solid var(--border);
}

.admin-dashboard-schedule-header h2 {
    margin: 0;
    font-size: 1.02rem;
}

.admin-dashboard-schedule-badge {
    flex-shrink: 0;
}

.admin-dashboard-schedule-subtitle {
    margin: 6px 0 0;
}

.admin-dashboard-schedule-empty {
    margin: 0;
    padding: 16px;
}

.admin-today-schedule-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 12px 16px;
    overflow-y: auto;
    flex: 1;
    min-height: 0;
}

.admin-today-schedule-item {
    display: grid;
    grid-template-columns: 28px 1fr;
    grid-template-areas:
        "order time"
        "order student"
        "order subject"
        "order meta";
    gap: 2px 10px;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--bg);
    width: 100%;
    text-align: left;
    font: inherit;
    color: inherit;
}

.admin-today-schedule-item.is-toggleable {
    cursor: pointer;
}

.admin-today-schedule-item.is-toggleable:hover {
    border-color: rgba(59, 130, 246, 0.45);
    background: rgba(59, 130, 246, 0.04);
}

.admin-today-schedule-item.is-toggleable:disabled {
    opacity: 0.7;
    cursor: wait;
}

.admin-today-schedule-item.is-completed {
    border-color: rgba(34, 197, 94, 0.35);
    background: rgba(34, 197, 94, 0.06);
}

.admin-today-schedule-order {
    grid-area: order;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 999px;
    background: var(--card);
    border: 1px solid var(--border);
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--muted);
}

.admin-today-schedule-time {
    grid-area: time;
    font-size: 0.84rem;
    font-weight: 700;
    color: var(--text);
}

.admin-today-schedule-student {
    grid-area: student;
    font-size: 0.92rem;
    line-height: 1.3;
}

.admin-today-schedule-subject {
    grid-area: subject;
    font-size: 0.84rem;
    color: var(--muted);
}

.admin-today-schedule-meta {
    grid-area: meta;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px;
    font-size: 0.78rem;
}

.admin-today-schedule-type {
    color: var(--muted);
}

.admin-today-schedule-status {
    font-weight: 600;
    color: var(--text);
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.admin-today-schedule-check {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 16px;
    height: 16px;
    border-radius: 999px;
    background: rgba(34, 197, 94, 0.15);
    color: #16a34a;
    font-size: 0.68rem;
    font-weight: 800;
}

.admin-today-schedule-item.is-completed .admin-today-schedule-status-text {
    color: #16a34a;
}

.admin-dashboard-schedule-footer {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 12px 16px 16px;
    border-top: 1px solid var(--border);
}

.student-dashboard-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(280px, 340px);
    gap: 16px;
    align-items: start;
}

.student-dashboard-lessons,
.student-dashboard-homework {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.student-dashboard-homework {
    position: sticky;
    top: 12px;
    max-height: calc(100vh - 96px);
    overflow: hidden;
}

.student-dashboard-section-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 10px;
    padding: 16px 16px 10px;
    border-bottom: 1px solid var(--border);
}

.student-dashboard-section-header h2 {
    margin: 0;
    font-size: 1.02rem;
}

.student-dashboard-section-subtitle {
    margin: 6px 0 0;
}

.student-dashboard-empty {
    margin: 0;
    padding: 16px;
}

.student-today-lesson-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 14px 16px 16px;
}

.student-today-lesson-item {
    display: flex;
    gap: 12px;
    padding: 12px 14px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--bg);
}

.student-today-lesson-order {
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 999px;
    background: var(--card);
    border: 1px solid var(--border);
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--muted);
}

.student-today-lesson-body {
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.student-today-lesson-head {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
}

.student-today-lesson-time {
    font-size: 0.84rem;
    font-weight: 700;
    color: var(--text);
}

.student-today-lesson-type {
    font-size: 0.72rem;
}

.student-today-lesson-title {
    font-size: 0.95rem;
    line-height: 1.35;
}

.student-today-lesson-subject {
    font-size: 0.84rem;
    color: var(--muted);
}

.student-today-lesson-status {
    font-size: 0.78rem;
    color: var(--muted);
}

.student-today-lesson-enter {
    align-self: flex-start;
    margin-top: 4px;
}

.student-lesson-week-grid {
    display: grid;
    grid-template-columns: repeat(7, minmax(0, 1fr));
    gap: 10px;
    padding: 14px 16px 0;
}

.student-lesson-week-day {
    min-height: 120px;
    padding: 10px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--bg);
}

.student-lesson-week-day-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 6px;
    margin-bottom: 8px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border);
    font-size: 0.82rem;
}

.student-lesson-week-empty {
    margin: 0;
    font-size: 0.78rem;
    color: var(--muted);
}

.student-lesson-week-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.student-lesson-week-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 8px;
    border-radius: 8px;
    background: rgba(59, 130, 246, 0.06);
    border: 1px solid rgba(59, 130, 246, 0.12);
    font-size: 0.78rem;
}

.student-lesson-week-time {
    font-weight: 700;
    color: var(--text);
}

.student-lesson-week-title {
    font-size: 0.82rem;
    line-height: 1.35;
}

.student-lesson-week-subject {
    color: var(--muted);
}

.student-lesson-week-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px;
}

.student-lesson-week-meta .badge {
    font-size: 0.68rem;
}

.student-lesson-week-scope {
    color: var(--muted);
    font-size: 0.72rem;
}

.student-lesson-week-link {
    font-size: 0.74rem;
    font-weight: 600;
    color: var(--primary);
    text-decoration: none;
}

.student-lesson-week-link:hover {
    text-decoration: underline;
}

.student-dashboard-lessons-footer {
    padding: 12px 16px 16px;
}

.student-weekly-lesson-table-wrap {
    padding: 0 16px;
}

.student-weekly-lesson-table {
    width: 100%;
}

.student-weekly-lesson-table th:nth-child(1),
.student-weekly-lesson-table td:nth-child(1) {
    white-space: nowrap;
}

.student-weekly-lesson-table th:nth-child(2),
.student-weekly-lesson-table td:nth-child(2) {
    white-space: nowrap;
}

.student-weekly-lesson-cards {
    display: none;
}

.student-today-homework-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 12px 16px;
    overflow-y: auto;
    flex: 1;
    min-height: 0;
}

.student-today-homework-card {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 12px 14px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--bg);
    color: inherit;
    text-decoration: none;
    transition: border-color 0.15s ease, background 0.15s ease;
}

.student-today-homework-card:hover {
    border-color: rgba(59, 130, 246, 0.45);
    background: rgba(59, 130, 246, 0.04);
}

.student-today-homework-time {
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--muted);
}

.student-today-homework-title {
    font-size: 0.92rem;
    line-height: 1.35;
}

.student-today-homework-outcome {
    font-size: 0.82rem;
    color: var(--muted);
}

.student-today-homework-meta {
    font-size: 0.78rem;
    color: var(--muted);
}

.student-today-homework-status {
    align-self: flex-start;
    margin-top: 2px;
}

.student-dashboard-homework-footer {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 12px 16px 16px;
    border-top: 1px solid var(--border);
}

.stat-card,
.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 14px;
}

.stat-card { padding: 20px; }
.stat-label { color: var(--muted); font-size: 0.9rem; }
.stat-value { display: block; font-size: 2rem; margin-top: 8px; }

.stat-card--compact {
    padding: 14px 16px;
    border-radius: 12px;
    width: 100%;
    min-width: 0;
}

.stat-card--compact .stat-card-title {
    display: block;
    font-size: 0.86rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 10px;
    letter-spacing: 0.01em;
}

.stat-card-metrics {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px 18px;
}

.stat-metric {
    display: inline-flex;
    align-items: baseline;
    gap: 6px;
    white-space: nowrap;
}

.stat-metric--single {
    padding-top: 2px;
}

.stat-card--compact .stat-label {
    font-size: 0.84rem;
}

.stat-card--compact .stat-value {
    display: inline;
    font-size: 1.45rem;
    margin-top: 0;
    line-height: 1;
    font-weight: 800;
}

.stat-card--stacked {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.stat-card-title {
    display: block;
    font-size: 0.92rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 14px;
}

.stat-card--stacked .stat-card-row {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 12px;
    padding: 12px 0;
}

.stat-card--stacked .stat-card-row + .stat-card-row {
    border-top: 1px solid var(--border);
}

.stat-card--stacked .stat-card-row:first-of-type {
    padding-top: 0;
}

.stat-card--stacked .stat-card-row:last-of-type {
    padding-bottom: 0;
}

.stat-card--stacked .stat-value {
    font-size: 1.65rem;
    margin-top: 0;
    line-height: 1;
}

.card-header {
    padding: 18px 20px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.card-header h2 { margin: 0; font-size: 1.1rem; }

.table-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    max-width: 100%;
}

table { width: 100%; border-collapse: collapse; }

th, td {
    padding: 14px 20px;
    text-align: left;
    border-bottom: 1px solid var(--border);
    font-size: 0.92rem;
}

th { color: var(--muted); font-weight: 600; }

.badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-success { background: rgba(16, 185, 129, 0.15); color: #6ee7b7; }
.badge-muted { background: rgba(156, 163, 175, 0.15); color: #d1d5db; }
.badge-info { background: rgba(56, 189, 248, 0.15); color: #7dd3fc; }
.badge-warning { background: rgba(245, 158, 11, 0.15); color: #fcd34d; }
.badge-danger { background: rgba(239, 68, 68, 0.15); color: #fca5a5; }

.badge-btn {
    border: none;
    cursor: pointer;
    font: inherit;
    transition: filter 0.15s ease, transform 0.15s ease;
}

.badge-btn:hover {
    filter: brightness(1.15);
    transform: translateY(-1px);
}

.badge-btn:focus-visible {
    outline: 2px solid rgba(56, 189, 248, 0.6);
    outline-offset: 2px;
}

.assigned-students-list-wrap {
    max-height: 320px;
    overflow-y: auto;
    margin: 12px 0 16px;
}

.assigned-students-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.assigned-students-item {
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: 10px 12px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.assigned-students-item strong {
    font-size: 0.95rem;
}

.assigned-students-meta {
    font-size: 0.8rem;
    color: var(--muted);
}

.assigned-students-empty {
    padding: 12px;
    color: var(--muted);
    font-size: 0.9rem;
}

.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
    margin-bottom: 16px;
}

.student-new-form-grid {
    margin-bottom: 20px;
    align-items: start;
}

.student-new-form-col .form-section-title:first-child {
    margin-top: 0;
}

.student-new-form-hint {
    margin: -4px 0 12px;
}

.student-existing-notice {
    margin-bottom: 16px;
    padding: 14px 16px;
    border-radius: 10px;
    border: 1px solid #f0c674;
    background: #fff8e6;
    color: #7a5b00;
    font-size: 0.92rem;
    line-height: 1.5;
}

.student-existing-notice.is-linked {
    border-color: #b8d4f0;
    background: #eef6fc;
    color: #1a5276;
}

.student-existing-notice strong {
    display: block;
    margin-bottom: 4px;
    font-size: 0.95rem;
}

.student-new-form.is-existing-student .field-readonly-existing,
.student-new-form.is-existing-student input[readonly]:not(#parentPassword) {
    background: #f4f6f8;
    cursor: not-allowed;
}

.student-lesson-type-fieldset {
    margin: 0 0 10px;
    padding: 0;
    border: none;
}

.student-lesson-type-fieldset legend {
    margin-bottom: 8px;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text);
}

.student-lesson-type-options {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.student-lesson-type-option {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    border: 1px solid rgba(148, 163, 184, 0.35);
    border-radius: 8px;
    font-size: 0.84rem;
    cursor: pointer;
    user-select: none;
}

.student-lesson-type-option:has(input:checked) {
    border-color: rgba(99, 102, 241, 0.55);
    background: rgba(99, 102, 241, 0.1);
}

.student-lesson-type-option input {
    margin: 0;
}

.student-lesson-type-panel {
    display: none;
    margin-bottom: 8px;
}

.student-lesson-type-panel.is-visible {
    display: block;
}

.student-lesson-type-panel[hidden] {
    display: none !important;
}

.student-new-form-col .form-section-title + .form-section-title,
.student-new-form-col .form-section-title:not(:first-child) {
    margin-top: 24px;
    padding-top: 4px;
    border-top: 1px solid var(--border);
}

.form-subsection-title {
    margin: 14px 0 10px;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--muted);
}

.info-list { padding: 16px 20px 20px; }
.info-list div {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    padding: 10px 0;
    border-bottom: 1px solid var(--border);
}

.info-list span { color: var(--muted); }

.session-list { list-style: none; margin: 0; padding: 0 20px 20px; }
.session-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
}

.empty { color: var(--muted); padding: 20px; text-align: center; }
.mb-16 { margin-bottom: 16px; }

.panel-form { padding: 20px; }
.panel-form label {
    display: block;
    margin-bottom: 14px;
    font-size: 0.9rem;
    color: var(--muted);
}
.panel-form input,
.panel-form select,
.panel-form textarea {
    width: 100%;
    margin-top: 6px;
    padding: 10px 12px;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: #0b1220;
    color: var(--text);
    font-family: inherit;
}
.panel-form textarea { resize: vertical; min-height: 80px; }
.panel-form .field-second { margin-top: 8px; }

.panel-form .field-readonly {
    background: rgba(15, 23, 42, 0.65);
    color: var(--muted);
    cursor: not-allowed;
}

.homework-fieldset {
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 14px 16px 10px;
    margin-bottom: 16px;
}
.homework-fieldset legend {
    padding: 0 6px;
    color: var(--muted);
    font-size: 0.9rem;
}

.homework-create-form .homework-picker,
.panel-form .homework-picker {
    margin-bottom: 18px;
    padding: 16px;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: rgba(15, 23, 42, 0.35);
}
.online-lesson-group-filters {
    display: contents;
}
.online-lesson-group-filters .homework-picker-filter {
    flex: 0 1 120px;
}
.online-lesson-group-hint {
    margin: 0 0 10px;
}

.student-online-hub {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.online-lesson-room-body {
    padding: 0 20px 20px;
}

.online-lesson-room-lead {
    margin: 0 0 8px;
    font-size: 1rem;
}

.online-lesson-room-timer {
    display: block;
    font-size: 2rem;
    letter-spacing: 0.08em;
    margin-bottom: 12px;
    color: #7dd3fc;
}

.live-lesson-shell {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

body.live-lesson-share-mode .sidebar {
    display: none !important;
}

body.live-lesson-share-mode .main-area {
    width: 100%;
    max-width: 100%;
}

body.live-lesson-share-mode .content {
    padding-left: 16px;
    padding-right: 16px;
}

.live-lesson-toolbar {
    padding: 16px 20px;
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
}

.live-lesson-toolbar h2 {
    margin: 8px 0 4px;
}

.live-lesson-wait {
    padding: 24px 20px;
    text-align: center;
}

.live-lesson-stage {
    overflow: hidden;
    padding: 0;
}

.live-lesson-stage:has(#liveLessonBoardPanel.is-active) {
    overflow: visible;
}

.live-lesson-stage-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    font-size: 0.9rem;
}

.jitsi-meet-container {
    width: 100%;
    min-height: min(72vh, 720px);
    background: #020617;
}

.wrtc-room {
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 16px;
    min-height: min(72vh, 720px);
    background: #020617;
}

.wrtc-status {
    margin: 0;
    min-height: 1.2em;
    text-align: center;
}

.wrtc-video-grid {
    flex: 1;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 12px;
    align-content: start;
}

.wrtc-tile {
    position: relative;
    aspect-ratio: 16 / 10;
    border-radius: 12px;
    overflow: hidden;
    background: #0f172a;
    border: 1px solid rgba(148, 163, 184, 0.2);
}

.wrtc-tile-local {
    border-color: rgba(56, 189, 248, 0.45);
}

.wrtc-tile video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    background: #000;
}

.wrtc-tile-meta {
    position: absolute;
    left: 10px;
    bottom: 10px;
    padding: 4px 10px;
    border-radius: 999px;
    background: rgba(2, 6, 23, 0.72);
    color: #e2e8f0;
    font-size: 0.78rem;
}

.live-lesson-tabs {
    display: inline-flex;
    gap: 8px;
    padding: 4px;
    border-radius: 999px;
    background: rgba(15, 23, 42, 0.65);
    border: 1px solid var(--border);
}

.live-lesson-tab {
    border: 0;
    background: transparent;
    color: var(--muted);
    font: inherit;
    font-size: 0.86rem;
    font-weight: 600;
    padding: 8px 14px;
    border-radius: 999px;
    cursor: pointer;
}

.live-lesson-tab.is-active {
    background: rgba(56, 189, 248, 0.18);
    color: #7dd3fc;
}

.live-lesson-tab-badge {
    color: #34d399;
    margin-left: 4px;
}

.live-lesson-panel {
    display: none;
}

.live-lesson-panel.is-active {
    display: block;
}

.live-lesson-panel--board {
    background: #020617;
}

.lesson-board-shell {
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 14px;
    min-height: auto;
}

.lesson-board-toolbar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
}

.lesson-board-tools {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
}

.lesson-board-upload {
    cursor: pointer;
}

.lesson-board-tool-group {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 6px;
    padding: 8px;
    border-radius: 12px;
    background: rgba(15, 23, 42, 0.8);
    border: 1px solid var(--border);
}

.lesson-board-color {
    width: 28px;
    height: 28px;
    border-radius: 999px;
    border: 2px solid transparent;
    background: var(--swatch);
    cursor: pointer;
}

.lesson-board-color.is-active {
    border-color: #fff;
    box-shadow: 0 0 0 2px rgba(56, 189, 248, 0.45);
}

.lesson-board-tool.is-active {
    background: rgba(56, 189, 248, 0.18);
    color: #7dd3fc;
}

.lesson-board-page-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 0.86rem;
    color: var(--muted);
}

.lesson-board-layout {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    overflow: visible;
}

.lesson-board-main {
    flex: 1;
    min-width: 0;
    min-height: 420px;
    border: 1px dashed rgba(148, 163, 184, 0.25);
    border-radius: 14px;
    background: #0b1220;
    overflow: visible;
    padding: 12px;
}

.lesson-board-page {
    display: flex;
    justify-content: center;
}

.lesson-board-sidebar {
    flex: 0 0 180px;
    width: 180px;
    position: sticky;
    top: 16px;
    align-self: flex-start;
}

.lesson-board-empty {
    text-align: center;
    color: var(--muted);
    max-width: 420px;
    line-height: 1.5;
}

.lesson-board-canvas-wrap {
    position: relative;
    box-shadow: 0 16px 40px rgba(15, 23, 42, 0.45);
    border-radius: 8px;
    overflow: hidden;
    background: #fff;
}

.lesson-board-canvas-wrap canvas {
    display: block;
    max-width: 100%;
    height: auto;
}

#lessonBoardDrawCanvas {
    position: absolute;
    left: 0;
    top: 0;
    touch-action: none;
    cursor: crosshair;
}

.lesson-board-student-hint {
    margin: 0;
}

.lesson-board-status {
    margin: 0;
    min-height: 1.2em;
}

@media (max-width: 768px) {
    .lesson-board-toolbar,
    .lesson-board-tools {
        flex-direction: column;
        align-items: stretch;
    }

    .lesson-board-page-nav {
        justify-content: center;
    }

    .lesson-board-layout {
        flex-direction: column;
    }

    .lesson-board-sidebar {
        width: 100%;
        flex: none;
        position: relative;
        top: auto;
    }
}

body.live-lesson-share-mode .live-lesson-stage-head > .form-hint {
    display: none;
}

.wrtc-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
    padding-top: 4px;
}

.live-lesson-join {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
    min-height: min(60vh, 520px);
    padding: 32px 24px;
    text-align: center;
}

.class-section-layout {
    display: grid;
    grid-template-columns: minmax(240px, 320px) minmax(0, 1fr);
    gap: 16px;
    align-items: start;
}

.class-section-create-layout {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.class-section-create-layout .class-section-add-card {
    max-width: 300px;
}

.class-section-chip-list {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.class-section-chip {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    border-radius: 999px;
    background: rgba(56, 189, 248, 0.12);
    color: #bae6fd;
    font-size: 0.78rem;
    font-weight: 600;
}

.class-section-grade-head--list {
    border-bottom: 1px solid var(--border);
    padding: 12px 14px 10px;
}

.class-section-add-card .panel-form {
    padding: 0 14px 14px;
}

.class-section-add-card .card-header.compact-header {
    padding: 12px 14px;
}

.class-section-add-card .card-header.compact-header h2 {
    font-size: 0.95rem;
}

.class-section-add-form {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.class-section-add-form label {
    font-size: 0.85rem;
}

.class-section-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 280px));
    gap: 12px;
    align-items: start;
}

.class-section-grade-card {
    position: relative;
    padding-bottom: 0;
    max-width: 280px;
}

.class-section-grade-delete {
    position: absolute;
    top: 8px;
    right: 8px;
    z-index: 2;
    margin: 0;
}

.class-section-grade-delete .btn-sm {
    padding: 4px 8px;
    font-size: 0.72rem;
    line-height: 1.2;
}

.class-section-grade-head {
    display: block;
    padding: 12px 52px 10px 14px;
    border-bottom: 1px solid var(--border);
}

.class-section-grade-head > div:first-child {
    width: 100%;
}

.class-section-grade-head h3 {
    margin: 0 0 2px;
    font-size: 0.92rem;
}

.class-section-grade-head .form-hint {
    font-size: 0.75rem;
}

.class-section-inline-form {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px;
    width: 100%;
}

.class-section-inline-form input[type="text"] {
    flex: 1 1 80px;
    min-width: 0;
    max-width: 120px;
    padding: 6px 8px;
    font-size: 0.82rem;
}

.class-section-sections {
    padding: 10px 14px 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.class-section-add-section-form {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px;
}

.class-section-add-section-form input[type="text"] {
    flex: 1 1 70px;
    min-width: 0;
    max-width: 100px;
    padding: 6px 8px;
    font-size: 0.82rem;
}

.class-section-grade-card .btn-sm {
    padding: 5px 10px;
    font-size: 0.78rem;
}

.class-section-empty {
    margin: 0;
    font-size: 0.78rem;
}

.class-section-sections .table-wrap {
    overflow: visible;
}

.class-section-sections .table-compact {
    font-size: 0.8rem;
}

.class-section-sections .table-compact th,
.class-section-sections .table-compact td {
    padding: 6px 8px;
}

.class-section-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px;
}

.class-section-list--manage {
    grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
}

.class-section-list--manage .class-section-grade-card {
    max-width: none;
}

.class-section-sections--list {
    gap: 0;
}

.section-branch-row {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
    padding: 10px 0;
    border-bottom: 1px solid var(--border);
}

.section-branch-row:last-child {
    border-bottom: 0;
}

.section-branch-main {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    flex: 0 0 auto;
    min-width: 108px;
}

.section-branch-label {
    font-size: 0.92rem;
}

.section-branch-students {
    flex: 1;
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    align-items: center;
    gap: 6px 10px;
    min-width: 0;
    text-align: right;
}

.section-branch-student {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 6px 4px 10px;
    border-radius: 999px;
    background: rgba(99, 102, 241, 0.12);
    color: #e0e7ff;
    font-size: 0.78rem;
    line-height: 1.3;
    max-width: 100%;
}

.section-branch-student-name {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 160px;
}

.section-branch-student-remove {
    margin: 0;
    line-height: 1;
}

.section-branch-student-remove-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    padding: 0;
    border: 0;
    border-radius: 999px;
    background: rgba(239, 68, 68, 0.2);
    color: #fecaca;
    font-size: 0.95rem;
    line-height: 1;
    cursor: pointer;
}

.section-branch-student-remove-btn:hover {
    background: rgba(239, 68, 68, 0.35);
    color: #fff;
}

.section-branch-actions {
    flex-wrap: nowrap;
}

@media (max-width: 900px) {
    .class-section-list {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    }

    .class-section-grade-card {
        max-width: none;
    }

    .section-branch-row {
        flex-direction: column;
        align-items: stretch;
    }

    .section-branch-students {
        justify-content: flex-start;
        text-align: left;
    }

    .class-section-layout {
        grid-template-columns: 1fr;
    }
}
.homework-picker-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 12px;
}
.homework-picker-label {
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--text);
}
.homework-picker-count {
    font-size: 0.78rem;
    padding: 4px 10px;
    border-radius: 999px;
    background: rgba(56, 189, 248, 0.12);
    color: #7dd3fc;
    white-space: nowrap;
}
.homework-picker-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 12px;
}
.homework-picker-search {
    flex: 1 1 180px;
    min-width: 0;
    padding: 9px 12px;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: #0b1220;
    color: var(--text);
    font-family: inherit;
    font-size: 0.88rem;
}
.homework-picker-filter {
    flex: 0 1 120px;
    min-width: 100px;
    padding: 9px 12px;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: #0b1220;
    color: var(--text);
    font-family: inherit;
    font-size: 0.88rem;
}
.homework-picker-input {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
    pointer-events: none;
}
.homework-picker-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    max-height: 240px;
    overflow-y: auto;
    padding-right: 4px;
}
.homework-picker-list--grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(50px, 50px));
    gap: 6px;
    max-height: none;
    overflow: visible;
    padding-right: 0;
}
.homework-picker-empty {
    color: var(--muted);
    font-size: 0.88rem;
    padding: 12px 4px;
    margin: 0;
    grid-column: 1 / -1;
}
.homework-picker-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: #0b1220;
    cursor: pointer;
    transition: border-color 0.15s, background 0.15s, box-shadow 0.15s;
}
.homework-picker-card:hover {
    border-color: rgba(56, 189, 248, 0.45);
}
.homework-picker-card.is-selected {
    border-color: rgba(56, 189, 248, 0.8);
    background: rgba(56, 189, 248, 0.08);
    box-shadow: inset 0 0 0 1px rgba(56, 189, 248, 0.15);
}
.homework-picker-card.is-filtered {
    display: none !important;
}
.homework-picker-card[hidden] {
    display: none !important;
}
.homework-picker-card--student,
.homework-picker-card--book,
.homework-picker-card--outcome {
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    gap: 4px;
    width: 50px;
    padding: 7px 4px 8px;
    min-height: 68px;
    border-radius: 8px;
    position: relative;
}
.homework-picker-card--student .homework-picker-avatar,
.homework-picker-card--book .homework-picker-avatar,
.homework-picker-card--outcome .homework-picker-avatar {
    flex: 0 0 22px;
    width: 22px;
    height: 22px;
    font-size: 0.64rem;
}
.homework-picker-card--student .homework-picker-card-title,
.homework-picker-card--book .homework-picker-card-title,
.homework-picker-card--outcome .homework-picker-card-title {
    font-size: 0.62rem;
    font-weight: 500;
    line-height: 1.15;
    word-break: break-word;
    max-width: 100%;
}
.homework-picker-card--student .homework-picker-check,
.homework-picker-card--book .homework-picker-check,
.homework-picker-card--outcome .homework-picker-check {
    position: absolute;
    top: 5px;
    right: 5px;
    flex: none;
    width: 12px;
    height: 12px;
    border-width: 1.5px;
}
.homework-picker-card--student.is-selected .homework-picker-check::after,
.homework-picker-card--book.is-selected .homework-picker-check::after,
.homework-picker-card--outcome.is-selected .homework-picker-check::after {
    left: 3px;
    top: 1px;
    width: 3px;
    height: 5px;
    border-width: 0 1.5px 1.5px 0;
}
.homework-picker-card--book .homework-picker-card-meta {
    font-size: 0.52rem;
    line-height: 1.1;
    color: #7dd3fc;
}
.homework-picker-card--outcome .homework-picker-card-meta {
    font-size: 0.52rem;
    line-height: 1.1;
    color: #6ee7b7;
}
.homework-picker-card--book {
    min-height: 78px;
}
.homework-picker-card--outcome {
    min-height: 78px;
}
.homework-picker-list--readable {
    display: flex;
    flex-direction: column;
    gap: 12px;
    max-height: 520px;
    overflow-x: hidden;
    overflow-y: auto;
    padding: 12px;
    border: 1px solid rgba(148, 163, 184, 0.22);
    border-radius: 16px;
    background: #020617;
}
.homework-picker-list--readable::-webkit-scrollbar {
    width: 8px;
}
.homework-picker-list--readable::-webkit-scrollbar-thumb {
    background: rgba(148, 163, 184, 0.35);
    border-radius: 999px;
}
.homework-create-form label.homework-picker-row,
.panel-form label.homework-picker-row,
.homework-picker-list--readable label.homework-picker-row {
    display: grid !important;
    grid-template-columns: 24px minmax(0, 1fr) auto;
    align-items: center;
    column-gap: 14px;
    width: 100% !important;
    max-width: 100%;
    min-height: 78px;
    height: auto !important;
    margin: 0 !important;
    padding: 16px 18px !important;
    border: 1px solid rgba(148, 163, 184, 0.28) !important;
    border-radius: 14px !important;
    background: #0f172a !important;
    color: var(--text) !important;
    cursor: pointer;
    float: none !important;
    clear: both;
    overflow: visible !important;
    box-sizing: border-box !important;
    position: relative;
    font-size: inherit;
}
.homework-create-form label.homework-picker-row:hover,
.panel-form label.homework-picker-row:hover {
    border-color: rgba(56, 189, 248, 0.5) !important;
    background: #111827 !important;
}
.homework-create-form label.homework-picker-row.is-selected,
.panel-form label.homework-picker-row.is-selected {
    border-color: rgba(56, 189, 248, 0.8) !important;
    background: #0c4a6e !important;
}
.homework-create-form label.homework-picker-row.is-filtered,
.homework-create-form label.homework-picker-row.is-grade-hidden,
.homework-create-form label.homework-picker-row[hidden],
.panel-form label.homework-picker-row.is-filtered,
.panel-form label.homework-picker-row.is-grade-hidden,
.panel-form label.homework-picker-row[hidden] {
    display: none !important;
}
.homework-create-form .homework-picker-row-input,
.panel-form .homework-picker-row-input,
.homework-picker-row-input {
    position: absolute !important;
    left: 0 !important;
    top: 0 !important;
    width: 1px !important;
    height: 1px !important;
    min-width: 0 !important;
    max-width: 1px !important;
    margin: 0 !important;
    padding: 0 !important;
    border: 0 !important;
    opacity: 0 !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    pointer-events: none !important;
}
.homework-picker-row-check {
    grid-column: 1;
    grid-row: 1;
    flex: none;
    width: 20px !important;
    height: 20px !important;
    margin: 0 !important;
    border-radius: 6px;
    border: 1.5px solid rgba(148, 163, 184, 0.55);
    background: rgba(15, 23, 42, 0.8);
    position: relative;
    box-sizing: border-box;
    align-self: center;
}
.homework-picker-row.is-selected .homework-picker-row-check {
    border-color: #38bdf8;
    background: #38bdf8;
}
.homework-picker-row.is-selected .homework-picker-row-check::after {
    content: '';
    position: absolute;
    left: 6px;
    top: 2px;
    width: 5px;
    height: 9px;
    border: solid #0b1220;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}
.homework-picker-row-body {
    display: contents;
}
.homework-picker-row-text {
    grid-column: 2;
    grid-row: 1;
    display: flex !important;
    flex-direction: column;
    gap: 4px;
    min-width: 0;
    margin: 0 !important;
    overflow: visible !important;
}
.homework-picker-row-kicker,
.homework-picker-row-subtitle,
.homework-picker-row-title {
    display: block !important;
    position: static !important;
    float: none !important;
    width: auto !important;
    max-width: 100%;
    margin: 0 !important;
    padding: 0 !important;
    white-space: normal !important;
    overflow: visible !important;
}
.homework-picker-row-kicker {
    font-size: 0.74rem;
    font-weight: 700;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    color: #7dd3fc;
    line-height: 1.35;
}
.homework-picker-row-subtitle {
    font-size: 0.84rem;
    font-weight: 500;
    color: #94a3b8;
    line-height: 1.4;
}
.homework-picker-row-title {
    font-size: 0.98rem;
    font-weight: 600;
    line-height: 1.45;
    color: #e2e8f0;
    overflow-wrap: anywhere;
    word-break: break-word;
}
.homework-picker-row-meta {
    grid-column: 3;
    grid-row: 1;
    display: inline-flex !important;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
    min-width: 78px;
    margin: 0 !important;
    padding: 8px 12px !important;
    border-radius: 999px;
    background: rgba(56, 189, 248, 0.16) !important;
    border: 1px solid rgba(56, 189, 248, 0.35);
    color: #7dd3fc !important;
    font-size: 0.8rem !important;
    font-weight: 700;
    line-height: 1.2;
    white-space: nowrap !important;
    align-self: center;
}
.homework-create-form .homework-picker {
    border-radius: 16px;
    background:
        radial-gradient(1200px 180px at 0% 0%, rgba(56, 189, 248, 0.08), transparent 55%),
        rgba(15, 23, 42, 0.42);
}
.homework-create-form .homework-picker-toolbar {
    align-items: center;
}
.homework-create-form .homework-picker-search {
    min-height: 42px;
    border-radius: 12px;
    background: rgba(11, 18, 32, 0.9);
}
.homework-create-form .homework-picker-search:focus {
    outline: none;
    border-color: rgba(56, 189, 248, 0.55);
    box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.12);
}
.homework-picker-card--readable.homework-picker-card--book,
.homework-picker-card--readable.homework-picker-card--outcome {
    display: flex !important;
    flex-direction: row !important;
    align-items: flex-start !important;
    justify-content: flex-start !important;
    text-align: left !important;
    gap: 12px;
    width: 100% !important;
    min-height: 0 !important;
    margin: 0;
    padding: 12px 14px !important;
    border-radius: 12px !important;
}
.homework-dropdown-picker {
    position: relative;
    overflow: visible;
    z-index: 2;
}
.homework-dropdown-picker.is-open {
    z-index: 30;
}
.homework-dropdown-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    width: 100%;
    min-height: 46px;
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: #0b1220;
    color: var(--text);
    text-align: left;
    cursor: pointer;
    font-size: 0.92rem;
    font-weight: 500;
}
.homework-dropdown-toggle [data-dropdown-toggle-label] {
    flex: 1;
    min-width: 0;
    white-space: normal;
    overflow-wrap: anywhere;
    line-height: 1.35;
}
.homework-dropdown-caret {
    flex: 0 0 auto;
    color: var(--muted);
}
.homework-dropdown-picker.is-open .homework-dropdown-toggle {
    border-color: rgba(56, 189, 248, 0.7);
    box-shadow: 0 0 0 2px rgba(56, 189, 248, 0.12);
}
.homework-dropdown-panel {
    position: static;
    z-index: 40;
    margin-top: 10px;
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: #0b1220;
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.35);
}
.homework-dropdown-panel[hidden] {
    display: none !important;
}
.homework-dropdown-toolbar {
    margin-bottom: 10px;
}
.homework-picker-list--dropdown {
    display: flex;
    flex-direction: column;
    gap: 6px;
    max-height: 340px;
    overflow: auto;
    padding-right: 2px;
}
.homework-dropdown-option.homework-picker-card--book,
.homework-dropdown-option.homework-picker-card--outcome {
    display: flex !important;
    flex-direction: row !important;
    align-items: flex-start !important;
    justify-content: flex-start !important;
    text-align: left !important;
    gap: 10px;
    width: 100% !important;
    min-height: 0 !important;
    padding: 10px 12px !important;
    border-radius: 10px;
}
.homework-dropdown-option.homework-picker-card--book.is-filtered,
.homework-dropdown-option.homework-picker-card--outcome.is-filtered,
.homework-dropdown-option.homework-picker-card--book[hidden],
.homework-dropdown-option.homework-picker-card--outcome[hidden] {
    display: none !important;
}
.homework-dropdown-option > input[type="checkbox"] {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}
.homework-dropdown-option .homework-picker-check {
    position: static !important;
    flex: 0 0 18px;
    width: 18px !important;
    height: 18px !important;
    margin-top: 2px;
}
.homework-dropdown-option-body {
    display: flex;
    flex: 1;
    min-width: 0;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
}
.homework-dropdown-option .homework-picker-card-title {
    flex: 1;
    min-width: 0;
    font-size: 0.9rem !important;
    font-weight: 600 !important;
    line-height: 1.4 !important;
    white-space: normal !important;
    overflow-wrap: anywhere;
    word-break: break-word;
}
.homework-dropdown-option .homework-picker-card-meta {
    flex: 0 0 auto;
    margin-top: 1px;
    font-size: 0.78rem !important;
    line-height: 1.3 !important;
    white-space: nowrap;
}
.homework-picker-avatar--book {
    color: #fcd34d;
    background: rgba(245, 158, 11, 0.15);
}
.homework-picker-avatar--outcome {
    color: #6ee7b7;
    background: rgba(16, 185, 129, 0.15);
}
.homework-picker-avatar {
    flex: 0 0 36px;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    font-size: 0.9rem;
    font-weight: 700;
    color: #7dd3fc;
    background: rgba(56, 189, 248, 0.15);
}
.homework-picker-card-body {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.homework-picker-card-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}
.homework-picker-card-title {
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--text);
}
.homework-picker-card-sub {
    font-size: 0.82rem;
    color: var(--muted);
}
.homework-picker-card-outcome {
    font-size: 0.78rem;
    color: #94a3b8;
    line-height: 1.35;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.homework-book-badge {
    flex-shrink: 0;
    font-size: 0.72rem;
}
.homework-picker-check {
    flex: 0 0 22px;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    border: 2px solid var(--border);
    position: relative;
    transition: border-color 0.15s, background 0.15s;
}
.homework-picker-card.is-selected .homework-picker-check {
    border-color: #38bdf8;
    background: #38bdf8;
}
.homework-picker-card.is-selected .homework-picker-check::after {
    content: '';
    position: absolute;
    left: 6px;
    top: 3px;
    width: 5px;
    height: 9px;
    border: solid #0b1220;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}
.homework-selected-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px dashed var(--border);
}
.homework-chip {
    display: inline-flex;
    align-items: center;
    max-width: 100%;
    padding: 7px 11px;
    border-radius: 999px;
    border: 1px solid rgba(56, 189, 248, 0.25);
    background: rgba(56, 189, 248, 0.1);
    color: #bae6fd;
    font-size: 0.78rem;
    font-weight: 600;
    white-space: normal;
    overflow-wrap: anywhere;
    line-height: 1.35;
}
.homework-form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 0 16px;
}
.homework-question-counts {
    margin-top: 14px;
    padding-top: 14px;
    border-top: 1px dashed var(--border);
}
.homework-question-counts-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 10px;
}
.homework-question-count-list {
    display: block;
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}
.homework-question-table {
    width: 100%;
    min-width: 640px;
    border-collapse: separate;
    border-spacing: 0;
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
    background: #0b1220;
}
.homework-question-table thead th {
    padding: 10px 12px;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    color: #7dd3fc;
    background: rgba(56, 189, 248, 0.08);
    border-bottom: 1px solid var(--border);
    text-align: center;
    white-space: nowrap;
}
.homework-question-table thead th.homework-question-table-outcome {
    text-align: left;
}
.homework-question-table tbody td {
    padding: 10px 12px;
    border-bottom: 1px solid rgba(148, 163, 184, 0.14);
    vertical-align: middle;
}
.homework-question-table tbody tr:last-child td {
    border-bottom: 0;
}
.homework-question-count-row {
    margin: 0 !important;
    color: var(--text);
    font-size: 0.88rem;
}
.homework-question-table-outcome {
    min-width: 220px;
    max-width: 360px;
}
.homework-question-count-label {
    display: block;
    font-weight: 600;
    line-height: 1.35;
    overflow-wrap: anywhere;
    word-break: break-word;
    color: var(--text);
}
.homework-question-table-diff {
    width: 110px;
    text-align: center;
}
.homework-question-diff-field {
    display: block;
    margin: 0 !important;
    color: inherit;
    font-size: inherit;
}
.homework-question-diff-control {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    width: 100%;
}
.homework-question-count-input {
    width: 64px !important;
    min-width: 64px !important;
    max-width: 72px !important;
    margin-top: 0 !important;
    padding: 8px 6px !important;
    text-align: center;
}
.homework-question-count-input.is-invalid {
    border-color: #f87171 !important;
    box-shadow: 0 0 0 1px rgba(248, 113, 113, 0.35);
}
.homework-question-count-max {
    font-size: 0.74rem;
    color: var(--muted);
    white-space: nowrap;
}
.homework-diff-breakdown {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 8px;
}
.homework-diff-pill {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 8px;
    border-radius: 999px;
    font-size: 0.72rem;
    font-weight: 600;
    line-height: 1.2;
    border: 1px solid rgba(148, 163, 184, 0.28);
    background: rgba(15, 23, 42, 0.85);
    color: #cbd5e1;
}
.homework-diff-pill strong {
    font-weight: 800;
    color: #f8fafc;
}
.homework-diff-pill--kolay {
    border-color: rgba(74, 222, 128, 0.45);
    color: #86efac;
}
.homework-diff-pill--orta {
    border-color: rgba(56, 189, 248, 0.45);
    color: #7dd3fc;
}
.homework-diff-pill--zor {
    border-color: rgba(251, 146, 60, 0.45);
    color: #fdba74;
}
.homework-diff-pill--uzman {
    border-color: rgba(244, 114, 182, 0.45);
    color: #f9a8d4;
}
.homework-question-diff-available {
    font-size: 0.72rem;
    font-weight: 700;
    color: #7dd3fc;
    white-space: nowrap;
}
@media (max-width: 720px) {
    .homework-question-table {
        min-width: 560px;
    }
    .homework-question-table-diff {
        width: 96px;
    }
}
.homework-outcome-preview {
    margin-top: 6px;
    padding: 12px;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: #0b1220;
    color: var(--text);
    min-height: 72px;
}
.homework-outcome-item + .homework-outcome-item {
    margin-top: 8px;
    padding-top: 8px;
    border-top: 1px dashed var(--border);
}
.homework-outcome-cell { max-width: 240px; font-size: 0.85rem; }

@media (max-width: 640px) {
    .homework-picker-toolbar .btn {
        flex: 1 1 calc(50% - 4px);
    }
}

.cell-stack { display: flex; flex-direction: column; gap: 2px; }
.cell-sub { color: var(--muted); font-size: 0.82rem; }
.cell-muted { color: var(--muted); }

/* Müfredat konu / kazanım */
.curriculum-builder {
    margin: 16px 0 20px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
}

.curriculum-builder-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 6px;
}

.curriculum-builder-head h3 {
    margin: 0;
    font-size: 0.95rem;
}

.curriculum-builder-hint {
    margin: 0 0 12px;
    padding: 0;
}

.topics-container {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.topic-block {
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: rgba(15, 23, 42, 0.45);
}

.topic-block-head {
    display: flex;
    align-items: flex-end;
    gap: 8px;
    margin-bottom: 10px;
}

.topic-title-label {
    flex: 1;
    margin-bottom: 0 !important;
}

.outcomes-wrap {
    padding-left: 8px;
    border-left: 3px solid var(--primary);
}

.outcomes-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    margin-bottom: 8px;
    font-size: 0.82rem;
    color: var(--muted);
}

.outcomes-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.outcome-row {
    display: flex;
    align-items: flex-end;
    gap: 8px;
}

.outcome-row input[data-outcome-input] {
    flex: 1;
    margin: 0 !important;
    padding: 8px 10px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: #0b1220;
    color: var(--text);
    font-family: inherit;
    font-size: 0.88rem;
}

.outcome-hours-field {
    flex: 0 0 150px;
    margin: 0 !important;
}

.outcome-hours-label {
    display: block;
    margin-bottom: 4px;
    font-size: 0.72rem;
    color: var(--muted);
    line-height: 1.2;
}

.outcome-hours-field input {
    width: 100%;
    margin: 0 !important;
    padding: 8px 10px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: #0b1220;
    color: var(--text);
    font-family: inherit;
    font-size: 0.88rem;
}

.curriculum-show-page {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.curriculum-show-hero {
    overflow: hidden;
    border: 1px solid rgba(99, 102, 241, 0.25);
    background:
        radial-gradient(circle at top right, rgba(99, 102, 241, 0.18), transparent 42%),
        var(--card);
}

.curriculum-show-hero-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 18px 20px 0;
}

.curriculum-show-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.curriculum-show-hero-body {
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 12px 20px 16px;
}

.curriculum-show-title {
    margin: 0 0 8px;
    font-size: clamp(1.2rem, 2vw, 1.55rem);
    line-height: 1.2;
}

.curriculum-show-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.curriculum-show-badge {
    display: inline-flex;
    align-items: center;
    padding: 6px 12px;
    border-radius: 999px;
    font-size: 0.82rem;
    font-weight: 600;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: var(--text);
}

.curriculum-show-badge--subject {
    background: rgba(99, 102, 241, 0.16);
    border-color: rgba(99, 102, 241, 0.28);
    color: #c7d2fe;
}

.curriculum-show-stats {
    display: flex;
    flex-wrap: nowrap;
    align-items: stretch;
    gap: 8px;
    overflow-x: auto;
    padding-bottom: 2px;
}

.curriculum-show-stat {
    flex: 1 1 0;
    min-width: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 8px 12px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.07);
    cursor: pointer;
    font: inherit;
    color: inherit;
    text-align: left;
    transition: background 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
}

.curriculum-show-stat:hover {
    background: rgba(99, 102, 241, 0.08);
    border-color: rgba(99, 102, 241, 0.22);
}

.curriculum-show-stat.is-open {
    background: rgba(99, 102, 241, 0.14);
    border-color: rgba(99, 102, 241, 0.38);
}

.curriculum-show-stat:focus-visible {
    outline: 2px solid rgba(99, 102, 241, 0.6);
    outline-offset: 2px;
}

.curriculum-show-stat-label {
    margin: 0;
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--muted);
    white-space: nowrap;
}

.curriculum-show-stat-value {
    font-size: 0.88rem;
    line-height: 1.2;
    white-space: nowrap;
}

.curriculum-show-stat-panels {
    margin-top: 4px;
}

.curriculum-show-stat-panel {
    padding: 12px 14px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    max-height: 280px;
    overflow: auto;
}

.curriculum-show-stat-panel[hidden] {
    display: none;
}

.curriculum-show-stat-empty {
    margin: 0;
    color: var(--muted);
    font-size: 0.88rem;
}

.curriculum-show-stat-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.curriculum-show-stat-list li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 8px 10px;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.02);
    font-size: 0.88rem;
    line-height: 1.4;
}

.curriculum-show-stat-list-index {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 24px;
    height: 24px;
    border-radius: 999px;
    background: rgba(99, 102, 241, 0.14);
    color: #c7d2fe;
    font-size: 0.72rem;
    font-weight: 700;
    flex-shrink: 0;
}

.curriculum-show-stat-groups {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.curriculum-show-stat-group h3 {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin: 0 0 6px;
    font-size: 0.88rem;
    font-weight: 600;
}

.curriculum-show-stat-group h3 span {
    font-size: 0.78rem;
    font-weight: 600;
    color: #7dd3fc;
    white-space: nowrap;
}

.curriculum-show-stat-list--compact li {
    justify-content: space-between;
}

.curriculum-show-stat-hours {
    font-size: 0.78rem;
    font-weight: 600;
    color: #7dd3fc;
    white-space: nowrap;
    flex-shrink: 0;
}

.curriculum-show-assigned-grid--panel {
    padding: 0;
}

.curriculum-show-assigned-grid {
    display: flex;
    flex-wrap: nowrap;
    gap: 8px;
    overflow-x: auto;
    padding: 12px 20px 14px;
}

.curriculum-show-student-chip {
    display: flex;
    align-items: center;
    gap: 8px;
    flex: 0 0 auto;
    min-width: 160px;
    max-width: 220px;
    padding: 8px 10px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.07);
}

.curriculum-show-student-avatar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    border-radius: 999px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.85), rgba(139, 92, 246, 0.85));
    color: #fff;
    font-size: 0.78rem;
    font-weight: 700;
    flex-shrink: 0;
}

.curriculum-show-student-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}

.curriculum-show-student-info strong {
    font-size: 0.82rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.curriculum-show-student-info span {
    font-size: 0.72rem;
    color: var(--muted);
}

.curriculum-show-toolbar {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
}

.curriculum-show-toolbar-copy h2 {
    margin: 0 0 4px;
    font-size: 1.1rem;
}

.curriculum-show-toolbar-hint {
    margin: 0;
    color: var(--muted);
    font-size: 0.85rem;
}

.curriculum-show-toolbar-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: nowrap;
    width: 100%;
    min-width: 0;
}

.curriculum-show-search {
    flex: 1 1 auto;
    min-width: 0;
}

.curriculum-show-search input {
    width: 100%;
    min-width: 0;
    padding: 8px 12px;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text);
    font: inherit;
}

.curriculum-show-toolbar-actions .btn {
    flex-shrink: 0;
    white-space: nowrap;
}

.curriculum-show-search input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.18);
}

.curriculum-show-empty-state {
    padding: 28px 20px;
}

.curriculum-show-layout {
    display: grid;
    grid-template-columns: 240px minmax(0, 1fr);
    gap: 0;
    min-height: 320px;
}

.curriculum-show-nav-wrap {
    border-right: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.02);
}

.curriculum-show-nav {
    position: sticky;
    top: 16px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    max-height: calc(100vh - 120px);
    overflow: auto;
    padding: 16px 12px;
}

.curriculum-show-nav-link {
    display: grid;
    grid-template-columns: 34px minmax(0, 1fr);
    grid-template-rows: auto auto;
    gap: 2px 10px;
    padding: 10px 12px;
    border-radius: 10px;
    text-decoration: none;
    color: var(--text);
    border: 1px solid transparent;
    transition: background 0.15s ease, border-color 0.15s ease;
}

.curriculum-show-nav-link:hover,
.curriculum-show-nav-link.is-active {
    background: rgba(99, 102, 241, 0.12);
    border-color: rgba(99, 102, 241, 0.22);
}

.curriculum-show-nav-index {
    grid-row: 1 / span 2;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.05);
    font-size: 0.78rem;
    font-weight: 700;
    color: #c7d2fe;
}

.curriculum-show-nav-text {
    font-size: 0.88rem;
    font-weight: 600;
    line-height: 1.3;
}

.curriculum-show-nav-meta {
    font-size: 0.74rem;
    color: var(--muted);
}

.curriculum-show-panels {
    padding: 16px 20px 20px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.curriculum-show-search-empty {
    margin: 0;
    padding: 16px;
    border-radius: 12px;
    background: rgba(245, 158, 11, 0.08);
    border: 1px solid rgba(245, 158, 11, 0.18);
    color: #fcd34d;
    font-size: 0.9rem;
}

.curriculum-topic-panel {
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.02);
    overflow: hidden;
}

.curriculum-topic-panel[hidden] {
    display: none;
}

.curriculum-topic-summary {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: center;
    gap: 14px;
    padding: 14px 16px;
    cursor: pointer;
    list-style: none;
}

.curriculum-topic-summary::-webkit-details-marker {
    display: none;
}

.curriculum-topic-index {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 12px;
    background: rgba(99, 102, 241, 0.14);
    color: #c7d2fe;
    font-size: 0.82rem;
    font-weight: 700;
}

.curriculum-topic-copy {
    display: flex;
    flex-direction: column;
    gap: 4px;
    min-width: 0;
}

.curriculum-topic-title {
    font-size: 1rem;
    line-height: 1.3;
}

.curriculum-topic-meta {
    font-size: 0.8rem;
    color: var(--muted);
}

.curriculum-topic-chevron {
    width: 10px;
    height: 10px;
    border-right: 2px solid var(--muted);
    border-bottom: 2px solid var(--muted);
    transform: rotate(45deg);
    transition: transform 0.2s ease;
}

.curriculum-topic-panel[open] .curriculum-topic-chevron {
    transform: rotate(-135deg) translateY(-2px);
}

.curriculum-show-empty-inline {
    margin: 0;
    padding: 0 16px 16px 70px;
    color: var(--muted);
    font-size: 0.88rem;
}

.curriculum-outcome-list {
    list-style: none;
    margin: 0;
    padding: 0 12px 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.curriculum-outcome-item {
    display: grid;
    grid-template-columns: 28px minmax(0, 1fr) auto;
    align-items: start;
    gap: 12px;
    padding: 12px 14px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
}

.curriculum-outcome-item[hidden] {
    display: none;
}

.curriculum-outcome-index {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.06);
    color: var(--muted);
    font-size: 0.78rem;
    font-weight: 700;
}

.curriculum-outcome-text {
    line-height: 1.45;
    font-size: 0.92rem;
}

.curriculum-outcome-hours {
    white-space: nowrap;
    font-size: 0.82rem;
    font-weight: 600;
    color: #7dd3fc;
    padding-top: 2px;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

@media (max-width: 960px) {
    .curriculum-show-layout {
        grid-template-columns: 1fr;
    }

    .curriculum-show-nav-wrap {
        border-right: none;
        border-bottom: 1px solid var(--border);
    }

    .curriculum-show-nav {
        position: static;
        max-height: none;
        flex-direction: row;
        overflow-x: auto;
        padding-bottom: 12px;
    }

    .curriculum-show-nav-link {
        min-width: 220px;
    }
}

@media (max-width: 640px) {
    .curriculum-show-toolbar-actions {
        gap: 6px;
    }

    .curriculum-show-toolbar-actions .btn {
        padding-left: 10px;
        padding-right: 10px;
        font-size: 0.78rem;
    }

    .curriculum-outcome-item {
        grid-template-columns: 28px minmax(0, 1fr);
    }

    .curriculum-outcome-hours {
        grid-column: 2;
        padding-top: 0;
    }
}

.btn-danger-text {
    color: #fca5a5;
    border-color: rgba(239, 68, 68, 0.35);
    flex-shrink: 0;
    min-width: 34px;
    padding: 6px 10px;
}

.btn-danger-text:hover {
    background: rgba(239, 68, 68, 0.15);
    color: #fecaca;
}

/* Online deneme olusturma - onlinetestmaker tarzi */
.content:has(.exam-maker) {
    padding: 12px 16px 24px;
    overflow: visible;
}

.exam-maker {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.exam-maker-form {
    display: flex;
    gap: 16px;
    align-items: stretch;
    min-height: calc(100vh - 120px);
}

.exam-maker-sidebar {
    flex: 0 0 280px;
    width: 280px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.exam-type-tabs {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 0;
    border-bottom: 1px solid var(--border);
    background: #0b1220;
}

.exam-type-tab {
    border: none;
    border-right: 1px solid var(--border);
    background: transparent;
    color: var(--muted);
    font-size: 0.68rem;
    font-weight: 600;
    padding: 10px 6px;
    cursor: pointer;
    font-family: inherit;
    line-height: 1.2;
}

.exam-type-tab:last-child { border-right: none; }

.exam-type-tab.is-active {
    background: var(--card);
    color: var(--text);
}

.exam-type-tab:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

.exam-sidebar-fields {
    padding: 14px 14px 16px;
    flex: 1;
    overflow-y: auto;
}

.exam-sidebar-fields label {
    margin-bottom: 10px;
    font-size: 0.78rem;
}

.exam-sidebar-fields input,
.exam-sidebar-fields select,
.exam-sidebar-fields textarea {
    margin-top: 4px;
    padding: 8px 10px;
    font-size: 0.86rem;
}

.exam-sidebar-fields textarea {
    min-height: 54px;
}

.exam-sidebar-row {
    gap: 8px;
}

.exam-options {
    margin: 12px 0 16px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.exam-check {
    display: flex !important;
    align-items: flex-start;
    gap: 8px;
    margin-bottom: 0 !important;
    font-size: 0.78rem !important;
    color: var(--text);
    cursor: pointer;
}

.exam-check input {
    width: auto !important;
    margin: 2px 0 0 !important;
    accent-color: var(--primary);
}

.exam-submit-btn {
    width: 100%;
    padding: 12px;
    font-size: 0.92rem;
}

.exam-sidebar-actions {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.exam-preview-fullscreen {
    position: fixed;
    inset: 0;
    z-index: 100000;
    background: var(--bg, #0b1220);
    display: flex;
    flex-direction: column;
}

.exam-preview-fullscreen[hidden] {
    display: none !important;
}

body.exam-preview-open {
    overflow: hidden;
}

.exam-preview-admin-bar {
    position: fixed;
    top: 16px;
    right: 16px;
    z-index: 100001;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px 12px;
    max-width: min(520px, calc(100vw - 32px));
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: rgba(15, 23, 42, 0.94);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
    backdrop-filter: blur(10px);
}

.exam-preview-admin-label {
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: #93c5fd;
}

.exam-preview-admin-bar label {
    font-size: 0.85rem;
    color: var(--muted);
    white-space: nowrap;
}

.exam-preview-admin-bar input[type="range"] {
    width: 140px;
    min-width: 100px;
}

.exam-preview-admin-bar strong {
    min-width: 44px;
    text-align: right;
    color: #bae6fd;
}

.exam-preview-stage {
    flex: 1;
    min-height: 0;
    height: 100%;
}

.exam-preview-app-shell {
    width: 100%;
    height: 100%;
    min-height: 0;
}

.exam-preview-app-shell .sidebar {
    min-height: 0;
    height: 100%;
}

.exam-preview-app-shell .main-area {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-height: 0;
    overflow: hidden;
}

.exam-preview-app-shell .content {
    flex: 1;
    min-height: 0;
    overflow: auto;
}

.exam-preview-app-shell .sidebar-nav a.exam-preview-nav-link {
    pointer-events: none;
    cursor: default;
    text-decoration: none;
}

.exam-preview-fullscreen:fullscreen,
.exam-preview-fullscreen:-webkit-full-screen {
    width: 100%;
    height: 100%;
    background: var(--bg, #0b1220);
}

.exam-preview-static-btn {
    width: 100%;
    margin-top: 10px;
    pointer-events: none;
    opacity: 0.85;
}

.exam-view-back--static {
    cursor: default;
    pointer-events: none;
}

.sidebar-questions-wrap {
    margin-top: 18px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
}

.sidebar-questions-title {
    margin: 0 0 10px;
    font-size: 0.88rem;
    font-weight: 600;
}

.sidebar-questions-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-height: 420px;
    overflow-y: auto;
    padding-right: 2px;
}

.sidebar-question-item {
    display: flex;
    align-items: flex-start;
    gap: 8px;
}

.sidebar-question-num {
    flex: 0 0 22px;
    padding-top: 8px;
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--muted);
    text-align: center;
}

.sidebar-question-body {
    flex: 1;
    min-width: 0;
}

.sidebar-question-answer {
    display: inline-block;
    margin-bottom: 6px;
    padding: 2px 8px;
    border-radius: 999px;
    background: rgba(16, 185, 129, 0.15);
    color: #6ee7b7;
    font-size: 0.72rem;
    font-weight: 600;
}

.sidebar-question-preview {
    flex: 1;
    min-width: 0;
    padding: 0;
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
    background: #0f172a;
    cursor: zoom-in;
    transition: border-color 0.15s, box-shadow 0.15s;
}

.sidebar-question-preview:hover {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.2);
}

.sidebar-question-preview img {
    display: block;
    width: 100%;
    height: auto;
}

.sidebar-question-remove {
    flex: 0 0 auto;
    min-width: 28px;
    padding: 6px 8px;
}

.question-lightbox {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.question-lightbox[hidden] {
    display: none !important;
}

.question-lightbox-backdrop {
    position: absolute;
    inset: 0;
    border: none;
    background: rgba(15, 23, 42, 0.88);
    cursor: zoom-out;
}

.question-lightbox-dialog {
    position: relative;
    z-index: 1;
    max-width: min(960px, 96vw);
    max-height: 92vh;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.question-lightbox-dialog img {
    display: block;
    max-width: 100%;
    max-height: calc(92vh - 48px);
    width: auto;
    height: auto;
    border-radius: 8px;
    background: #fff;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.45);
}

.question-lightbox-close {
    position: absolute;
    top: -12px;
    right: -12px;
    width: 36px;
    height: 36px;
    border: none;
    border-radius: 50%;
    background: #fff;
    color: #0f172a;
    font-size: 1.4rem;
    line-height: 1;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
}

.question-lightbox-caption {
    margin: 12px 0 0;
    color: #e2e8f0;
    font-size: 0.9rem;
    text-align: center;
}

#adminHomeworkQuestionLightbox .question-lightbox-dialog {
    overflow: auto;
}

#adminHomeworkQuestionLightbox .question-lightbox-dialog img {
    max-height: calc(92vh - 200px);
}

.homework-miss-reason {
    display: flex;
    flex-direction: column;
    gap: 6px;
    width: min(520px, 92vw);
    margin-top: 12px;
    color: #e2e8f0;
    font-size: 0.92rem;
    font-weight: 600;
    text-align: left;
}

.homework-miss-reason select {
    width: 100%;
    padding: 10px 12px;
    border-radius: 10px;
    border: 1px solid rgba(148, 163, 184, 0.45);
    background: #0b1220;
    color: #e2e8f0;
    font: inherit;
    font-weight: 500;
}

.homework-miss-reason .form-hint {
    margin: 0;
    font-weight: 500;
}

.parent-homework-miss-reasons {
    white-space: normal;
    line-height: 1.45;
}

body.lightbox-open {
    overflow: hidden;
}

.exam-maker-workspace {
    flex: 1 1 0;
    min-width: 0;
    width: 100%;
    min-height: calc(100vh - 120px);
    display: flex;
    flex-direction: column;
    padding: 0;
    overflow: hidden;
    align-self: stretch;
}

.exam-maker-workspace.is-pdf-open {
    position: relative;
    flex: 1 1 0;
    min-width: 0;
    min-height: calc(100vh - 120px);
    height: calc(100vh - 120px);
}

.exam-maker-workspace.is-pdf-open #pdfWorkspace {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    min-height: 0;
    height: 100%;
    width: 100%;
    padding: 8px 8px 8px;
    box-sizing: border-box;
    overflow: hidden;
}

.exam-maker-workspace.is-pdf-open .pdf-workspace-head {
    display: none;
}

.exam-maker-workspace.is-pdf-open .pdf-toolbar {
    flex: 0 0 auto;
    margin-bottom: 6px;
    gap: 6px;
}

.exam-maker-workspace.is-pdf-open .pdf-toolbar--bottom {
    display: none;
}

.exam-maker-workspace.is-pdf-open .pdf-canvas-wrap {
    flex: 1 1 auto;
    min-height: 0;
    width: 100%;
    overflow-x: auto;
    overflow-y: auto;
    display: block;
    padding: 0;
    scrollbar-width: thin;
    scrollbar-color: #64748b #1e293b;
    -webkit-overflow-scrolling: touch;
}

.exam-maker-workspace.is-pdf-open .pdf-canvas-wrap::-webkit-scrollbar {
    width: 12px;
}

.exam-maker-workspace.is-pdf-open .pdf-canvas-wrap::-webkit-scrollbar-track {
    background: #1e293b;
    border-radius: 0 8px 8px 0;
}

.exam-maker-workspace.is-pdf-open .pdf-canvas-wrap::-webkit-scrollbar-thumb {
    background: #64748b;
    border-radius: 8px;
    border: 2px solid #1e293b;
}

.exam-maker-workspace.is-pdf-open .pdf-canvas-wrap::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}

.exam-maker-workspace.is-pdf-open .pdf-hit-layer {
    touch-action: pan-y;
}

.exam-maker-workspace.is-pdf-open .pdf-stage {
    position: relative;
    display: inline-block;
    width: auto !important;
    max-width: none !important;
    max-height: none !important;
    margin: 0 !important;
    box-sizing: border-box;
    line-height: 0;
}

.exam-maker-workspace.is-pdf-open .pdf-stage canvas {
    display: block;
    width: auto !important;
    height: auto !important;
    max-width: none !important;
    max-height: none !important;
}

.exam-drop-zone {
    flex: 1;
    margin: 16px;
    min-height: 420px;
    border: 2px dashed #7dd3fc;
    border-radius: 12px;
    background: rgba(125, 211, 252, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s, border-color 0.2s;
}

.exam-drop-zone.is-drag-over {
    background: rgba(99, 102, 241, 0.15);
    border-color: var(--primary);
}

.exam-drop-zone.is-hidden {
    display: none;
}

.exam-drop-inner {
    text-align: center;
    padding: 24px;
    max-width: 520px;
}

.exam-drop-icon {
    color: #64748b;
    margin-bottom: 12px;
}

.exam-drop-title {
    margin: 0 0 6px;
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text);
}

.exam-drop-sub {
    margin: 0 0 24px;
    font-size: 0.82rem;
    color: var(--muted);
}

.exam-action-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(140px, 1fr));
    gap: 12px;
    max-width: 360px;
    margin: 0 auto;
}

.exam-action-tile {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 16px 12px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--surface);
    color: var(--text);
    cursor: pointer;
    font-family: inherit;
    font-size: 0.78rem;
    font-weight: 600;
    transition: border-color 0.15s, transform 0.15s;
    text-decoration: none;
}

.sr-only-file-input {
    position: fixed;
    left: -10000px;
    top: auto;
    width: 1px;
    height: 1px;
    overflow: hidden;
    opacity: 0;
}

.exam-action-tile:hover {
    border-color: var(--primary);
    transform: translateY(-1px);
}

.exam-action-icon {
    font-size: 1.4rem;
    line-height: 1;
}

.pdf-workspace {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: calc(100vh - 180px);
    padding: 12px 16px 16px;
    overflow: hidden;
}

.pdf-workspace .pdf-canvas-wrap {
    flex: 1 1 auto;
    min-height: 0;
    max-height: none;
}

.pdf-workspace > .crop-add-bar--dock {
    flex: 0 0 auto;
    flex-shrink: 0;
    align-self: center;
    margin-top: 10px;
    margin-bottom: 4px;
}

.pdf-workspace-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 10px;
}

.pdf-workspace-head strong {
    display: block;
    font-size: 0.92rem;
    margin-bottom: 2px;
}

.pdf-workspace-head .form-hint {
    margin: 0;
    padding: 0;
    font-size: 0.75rem;
}

.crop-preview-strip {
    margin-bottom: 10px;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--surface);
}

.crop-preview-strip-label {
    margin-bottom: 8px;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--muted);
}

.crop-preview-strip-track {
    display: flex;
    gap: 10px;
    overflow-x: auto;
    padding-bottom: 4px;
}

.crop-preview-strip-track .selected-question-card {
    flex: 0 0 120px;
}

.crop-add-bar {
    position: absolute;
    z-index: 7;
    transform: translateX(-50%);
    pointer-events: auto;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 10px;
    background: rgba(15, 23, 42, 0.94);
    border: 1px solid rgba(148, 163, 184, 0.35);
    border-radius: 10px;
    white-space: nowrap;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
}

.crop-add-bar[hidden] {
    display: none !important;
}

.crop-add-bar--dock {
    position: static;
    transform: none;
    width: fit-content;
    max-width: 100%;
    margin: 10px auto 0;
    flex-wrap: wrap;
    justify-content: center;
}

.crop-add-label {
    font-size: 0.78rem;
    font-weight: 600;
    color: #e2e8f0;
}

.crop-answer-options {
    display: flex;
    gap: 4px;
}

.crop-answer-btn {
    width: 30px;
    height: 30px;
    padding: 0;
    border: 1px solid rgba(255, 255, 255, 0.28);
    border-radius: 50%;
    background: transparent;
    color: #fff;
    font-size: 0.82rem;
    font-weight: 700;
    cursor: pointer;
    line-height: 1;
}

.crop-answer-btn:hover {
    border-color: #818cf8;
    color: #c7d2fe;
}

.crop-answer-btn.is-selected {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
}

.crop-difficulty-options {
    display: flex;
    gap: 4px;
}

.crop-difficulty-btn {
    height: 30px;
    padding: 0 8px;
    border: 1px solid rgba(255, 255, 255, 0.28);
    border-radius: 999px;
    background: transparent;
    color: #fff;
    font-size: 0.72rem;
    font-weight: 700;
    cursor: pointer;
    line-height: 1;
    white-space: nowrap;
}

.crop-difficulty-btn:hover {
    border-color: #fbbf24;
    color: #fde68a;
}

.crop-difficulty-btn.is-selected {
    background: rgba(251, 191, 36, 0.2);
    border-color: #fbbf24;
    color: #fde68a;
}

.crop-add-bar .btn {
    min-width: 72px;
    margin-left: 2px;
}

.pdf-canvas-wrap {
    flex: 1;
    overflow-x: auto;
    overflow-y: auto;
    min-height: 0;
    max-height: none;
    scrollbar-gutter: stable;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: #1e293b;
    user-select: none;
    -webkit-user-select: none;
}

.selected-questions-panel {
    border-top: 1px solid var(--border);
    padding: 12px 16px 16px;
    max-height: 220px;
    overflow-y: auto;
}

.selected-questions-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 10px;
}

.selected-questions-head h3 {
    margin: 0;
    font-size: 0.9rem;
}

.exam-list-card {
    flex-shrink: 0;
}

.exam-view-back {
    display: inline-block;
    margin-bottom: 6px;
    font-size: 0.85rem;
    color: var(--muted);
    text-decoration: none;
}

.card-header .exam-view-back {
    margin-bottom: 0;
}

.exam-results-filter {
    display: flex;
    align-items: flex-end;
    flex-wrap: wrap;
    gap: 10px;
    margin: 0;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
}

.exam-results-filter label {
    margin: 0;
    min-width: 220px;
}

.exam-view-back:hover {
    color: var(--primary);
}

.exam-edit-banner {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px 16px;
    margin-bottom: 16px;
    padding: 14px 18px;
}

.exam-edit-banner .exam-view-back {
    margin-bottom: 0;
}

.exam-view-meta {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 16px;
    margin: 0;
    padding: 0 0 8px;
}

.exam-view-meta dt {
    margin: 0 0 4px;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.exam-view-meta dd {
    margin: 0;
    font-size: 0.95rem;
    font-weight: 600;
}

.homework-extend-due {
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
}

.homework-extend-due h3 {
    margin: 0 0 6px;
    font-size: 1rem;
}

.homework-extend-due-quick {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 10px 0 14px;
}

.homework-extend-due-form label {
    display: block;
    margin-bottom: 6px;
    font-size: 0.85rem;
    font-weight: 600;
}

.homework-extend-due-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
}

.homework-extend-due-row input[type="date"] {
    min-width: 160px;
}

.exam-view-description {
    margin-top: 12px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
}

.exam-view-description h3 {
    margin: 0 0 8px;
    font-size: 0.9rem;
}

.exam-view-description p {
    margin: 0;
    color: var(--muted);
    line-height: 1.5;
    white-space: pre-wrap;
}

.exam-pdf-frame {
    width: 100%;
    min-height: 640px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: #fff;
}

/* Kitap görüntüle */
.book-detail {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.book-detail-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
}

.book-detail-back {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--muted);
    text-decoration: none;
    font-size: 0.88rem;
    transition: color 0.15s;
}

.book-detail-back:hover {
    color: var(--primary);
}

.book-detail-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.book-detail-hero {
    padding: 20px 22px;
}

.book-detail-hero-main {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.book-detail-avatar {
    flex: 0 0 56px;
    width: 56px;
    height: 56px;
    border-radius: 14px;
    display: grid;
    place-items: center;
    font-size: 1.35rem;
    font-weight: 700;
    color: #fcd34d;
    background: linear-gradient(145deg, rgba(245, 158, 11, 0.22), rgba(245, 158, 11, 0.08));
    border: 1px solid rgba(245, 158, 11, 0.25);
}

.book-detail-hero-text {
    min-width: 0;
    flex: 1;
}

.book-detail-title {
    margin: 0 0 10px;
    font-size: 1.45rem;
    line-height: 1.2;
    word-break: break-word;
}

.book-detail-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.book-detail-tag {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 0.78rem;
    font-weight: 600;
    color: #cbd5e1;
    background: rgba(148, 163, 184, 0.12);
    border: 1px solid rgba(148, 163, 184, 0.18);
}

.book-detail-tag--grade {
    color: #7dd3fc;
    background: rgba(56, 189, 248, 0.12);
    border-color: rgba(56, 189, 248, 0.22);
}

.book-detail-tag--subject {
    color: #c4b5fd;
    background: rgba(139, 92, 246, 0.12);
    border-color: rgba(139, 92, 246, 0.22);
}

.book-detail-tag--answers {
    color: #6ee7b7;
    background: rgba(16, 185, 129, 0.12);
    border-color: rgba(16, 185, 129, 0.22);
}

.book-detail-stats {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
    margin-top: 18px;
    padding-top: 18px;
    border-top: 1px solid var(--border);
}

.book-detail-stat {
    padding: 12px 14px;
    border-radius: 12px;
    background: rgba(15, 23, 42, 0.55);
    border: 1px solid var(--border);
}

.book-detail-stat-label {
    display: block;
    margin-bottom: 6px;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--muted);
}

.book-detail-stat-value {
    display: block;
    font-size: 1rem;
    line-height: 1.3;
    word-break: break-word;
}

.book-detail-outcome {
    margin-top: 16px;
    padding: 14px 16px;
    border-radius: 12px;
    background: rgba(16, 185, 129, 0.08);
    border: 1px solid rgba(16, 185, 129, 0.18);
}

.book-detail-outcome-label {
    display: block;
    margin-bottom: 8px;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: #6ee7b7;
}

.book-detail-outcome-text {
    margin: 0;
    color: #ecfdf5;
    line-height: 1.55;
    white-space: pre-wrap;
}

.book-detail-empty {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    padding: 24px;
}

.book-detail-tabs {
    overflow: hidden;
}

.book-detail-tab-head {
    display: flex;
    gap: 8px;
    padding: 12px 14px 0;
    border-bottom: 1px solid var(--border);
}

.book-detail-tab {
    appearance: none;
    border: 0;
    background: transparent;
    color: var(--muted);
    font: inherit;
    font-size: 0.9rem;
    font-weight: 600;
    padding: 10px 14px;
    border-radius: 10px 10px 0 0;
    cursor: pointer;
    transition: color 0.15s, background 0.15s;
}

.book-detail-tab:hover {
    color: var(--text);
}

.book-detail-tab.is-active {
    color: #7dd3fc;
    background: rgba(56, 189, 248, 0.08);
}

.book-detail-panel {
    padding: 16px;
}

.book-detail-panel-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 14px;
}

.book-detail-questions {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 14px;
}

.book-detail-question {
    display: flex;
    flex-direction: column;
    gap: 10px;
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: rgba(15, 23, 42, 0.45);
    text-align: left;
    transition: border-color 0.15s, transform 0.15s, box-shadow 0.15s, opacity 0.15s;
}

.book-detail-question:hover {
    border-color: rgba(56, 189, 248, 0.45);
    transform: translateY(-1px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
}

.book-detail-question.is-deleting,
.book-detail-question.is-saving-answer,
.book-detail-question.is-moving {
    opacity: 0.55;
    pointer-events: none;
}

.book-detail-question-answers {
    display: flex;
    flex-direction: column;
    gap: 6px;
    width: 100%;
}

.book-detail-question-move,
.answer-key-item-move {
    display: flex;
    flex-direction: column;
    gap: 6px;
    width: 100%;
}

.book-detail-question-move select,
.answer-key-item-move select {
    width: 100%;
    height: 36px;
    padding: 0 10px;
    border-radius: 10px;
    border: 1px solid rgba(148, 163, 184, 0.35);
    background: rgba(15, 23, 42, 0.85);
    color: var(--text);
    font-size: 0.84rem;
    font-weight: 600;
    cursor: pointer;
    appearance: auto;
    -webkit-appearance: menulist;
}

.book-detail-question-move select:focus,
.answer-key-item-move select:focus {
    outline: none;
    border-color: rgba(56, 189, 248, 0.55);
    box-shadow: 0 0 0 2px rgba(56, 189, 248, 0.15);
}

.book-detail-question-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}

.book-detail-question-number {
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--text);
}

.book-detail-question-meta {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.book-detail-question-answer {
    min-width: 28px;
    height: 28px;
    padding: 0 8px;
    border-radius: 999px;
    display: inline-grid;
    place-items: center;
    font-size: 0.82rem;
    font-weight: 700;
    color: #6ee7b7;
    background: rgba(16, 185, 129, 0.15);
    border: 1px solid rgba(16, 185, 129, 0.25);
}

.book-detail-question-answer--empty {
    color: var(--muted);
    background: rgba(148, 163, 184, 0.08);
    border-color: rgba(148, 163, 184, 0.18);
}

.book-detail-question-delete {
    width: 28px;
    height: 28px;
    padding: 0;
    border-radius: 999px;
    border: 1px solid rgba(248, 113, 113, 0.35);
    background: rgba(248, 113, 113, 0.12);
    color: #fca5a5;
    font-size: 1.05rem;
    line-height: 1;
    cursor: pointer;
    display: inline-grid;
    place-items: center;
    transition: background 0.15s, border-color 0.15s, color 0.15s;
}

.book-detail-question-delete:hover {
    background: rgba(248, 113, 113, 0.22);
    border-color: rgba(248, 113, 113, 0.55);
    color: #fecaca;
}

.book-detail-question-difficulty {
    display: flex;
    flex-direction: column;
    gap: 6px;
    width: 100%;
    margin-top: 2px;
}

.book-detail-question-difficulty-label {
    font-size: 0.74rem;
    font-weight: 700;
    color: var(--muted);
    letter-spacing: 0.02em;
}

.book-detail-question-difficulty select,
.answer-key-item-difficulty select {
    width: 100%;
    height: 36px;
    padding: 0 10px;
    border-radius: 10px;
    border: 1px solid rgba(148, 163, 184, 0.35);
    background: rgba(15, 23, 42, 0.85);
    color: var(--text);
    font-size: 0.84rem;
    font-weight: 600;
    cursor: pointer;
    appearance: auto;
    -webkit-appearance: menulist;
}

.book-detail-question-difficulty select:focus,
.answer-key-item-difficulty select:focus {
    outline: none;
    border-color: rgba(56, 189, 248, 0.55);
    box-shadow: 0 0 0 2px rgba(56, 189, 248, 0.15);
}

.book-detail-question.is-saving-difficulty {
    opacity: 0.72;
}

.book-detail-question-difficulty select[data-difficulty="kolay"],
.book-detail-question-difficulty select:has(option[value="kolay"]:checked),
.answer-key-item-difficulty select:has(option[value="kolay"]:checked) {
    border-color: rgba(52, 211, 153, 0.45);
}

.book-detail-question-difficulty select:has(option[value="orta"]:checked),
.answer-key-item-difficulty select:has(option[value="orta"]:checked) {
    border-color: rgba(56, 189, 248, 0.45);
}

.book-detail-question-difficulty select:has(option[value="zor"]:checked),
.answer-key-item-difficulty select:has(option[value="zor"]:checked) {
    border-color: rgba(251, 191, 36, 0.5);
}

.book-detail-question-difficulty select:has(option[value="uzman"]:checked),
.answer-key-item-difficulty select:has(option[value="uzman"]:checked) {
    border-color: rgba(248, 113, 113, 0.5);
}

.sidebar-question-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 6px;
}

.sidebar-question-difficulty-field {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-top: 8px;
}

.sidebar-question-difficulty-label {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.sidebar-question-difficulty-select {
    width: 100%;
    height: 34px;
    padding: 0 10px;
    border-radius: 10px;
    border: 1px solid rgba(148, 163, 184, 0.28);
    background: rgba(15, 23, 42, 0.7);
    color: var(--text);
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
}

.sidebar-question-difficulty-select:focus {
    outline: none;
    border-color: rgba(56, 189, 248, 0.55);
    box-shadow: 0 0 0 2px rgba(56, 189, 248, 0.15);
}

.sidebar-question-difficulty {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 999px;
    background: rgba(251, 191, 36, 0.15);
    color: #fde68a;
    font-size: 0.72rem;
    font-weight: 600;
}

.sidebar-question-difficulty[data-difficulty="kolay"] {
    background: rgba(16, 185, 129, 0.15);
    color: #6ee7b7;
}

.sidebar-question-difficulty[data-difficulty="orta"] {
    background: rgba(56, 189, 248, 0.15);
    color: #7dd3fc;
}

.sidebar-question-difficulty[data-difficulty="zor"] {
    background: rgba(251, 191, 36, 0.15);
    color: #fde68a;
}

.sidebar-question-difficulty[data-difficulty="uzman"] {
    background: rgba(248, 113, 113, 0.15);
    color: #fca5a5;
}

.book-detail-question-preview {
    display: block;
    width: 100%;
    padding: 0;
    border: 0;
    background: transparent;
    cursor: zoom-in;
}

.book-detail-question img {
    width: 100%;
    height: 180px;
    object-fit: contain;
    border-radius: 10px;
    background: #fff;
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.book-detail-question-missing {
    display: grid;
    place-items: center;
    min-height: 180px;
    border-radius: 10px;
    color: var(--muted);
    background: rgba(15, 23, 42, 0.6);
    border: 1px dashed var(--border);
    font-size: 0.85rem;
}

.book-detail-pdf-frame {
    width: 100%;
    min-height: 72vh;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: #fff;
}

.book-add-summary {
    margin: 10px 0 16px;
    padding: 14px;
    border-radius: 12px;
    background: rgba(15, 23, 42, 0.55);
    border: 1px solid var(--border);
}

.book-add-summary-title {
    margin: 0 0 12px;
    font-size: 1.05rem;
    line-height: 1.3;
    word-break: break-word;
}

.book-add-summary-meta {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
    margin: 0;
}

.book-add-summary-meta dt {
    margin: 0 0 4px;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--muted);
}

.book-add-summary-meta dd {
    margin: 0;
    font-size: 0.88rem;
    font-weight: 600;
}

.book-add-summary-outcome {
    margin: 12px 0 0;
    padding-top: 12px;
    border-top: 1px solid var(--border);
    color: var(--muted);
    font-size: 0.86rem;
    line-height: 1.45;
    white-space: pre-wrap;
}

.book-edit-form {
    padding: 0 20px 20px;
    max-width: 560px;
}

.book-edit-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 8px;
}

@media (max-width: 560px) {
    .book-add-summary-meta {
        grid-template-columns: 1fr;
    }
}

/* Cevap anahtarı */
.answer-key-page .book-detail-avatar--answer-key {
    color: #6ee7b7;
    background: linear-gradient(145deg, rgba(16, 185, 129, 0.22), rgba(16, 185, 129, 0.08));
    border-color: rgba(16, 185, 129, 0.25);
}

.answer-key-eyebrow {
    margin: 0 0 6px;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: #6ee7b7;
}

.answer-key-progress-wrap {
    margin-top: 18px;
    padding-top: 18px;
    border-top: 1px solid var(--border);
}

.answer-key-progress-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 8px;
    font-size: 0.84rem;
    color: var(--muted);
}

.answer-key-progress-head strong {
    color: var(--text);
    font-size: 0.95rem;
}

.answer-key-progress-track {
    height: 8px;
    border-radius: 999px;
    background: rgba(148, 163, 184, 0.15);
    overflow: hidden;
}

.answer-key-progress-fill {
    display: block;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, #f59e0b, #fbbf24);
    transition: width 0.25s ease;
}

.answer-key-progress-fill.is-complete {
    background: linear-gradient(90deg, #059669, #34d399);
}

.answer-key-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 12px;
}

.answer-key-item {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 12px;
    border-radius: 14px;
    border: 1px solid rgba(16, 185, 129, 0.22);
    background: rgba(16, 185, 129, 0.06);
}

.answer-key-item--editable {
    cursor: default;
    transition: border-color 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease;
}

.answer-key-item--editable:hover {
    border-color: rgba(52, 211, 153, 0.55);
    box-shadow: 0 8px 20px rgba(16, 185, 129, 0.12);
}

.answer-key-item--editable.is-editing {
    border-color: rgba(99, 102, 241, 0.55);
    background: rgba(99, 102, 241, 0.08);
    box-shadow: 0 10px 24px rgba(99, 102, 241, 0.16);
}

.answer-key-item--editable.is-saving {
    opacity: 0.72;
    pointer-events: none;
}

.answer-key-item-picker {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding-top: 4px;
}

.answer-key-item-picker-label {
    font-size: 0.74rem;
    font-weight: 700;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.answer-key-item-options {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.answer-key-option-btn {
    min-width: 34px;
    height: 34px;
    padding: 0 10px;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.22);
    background: rgba(15, 23, 42, 0.55);
    color: #e2e8f0;
    font-size: 0.88rem;
    font-weight: 800;
    cursor: pointer;
    transition: background 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
}

.answer-key-option-btn:hover {
    border-color: rgba(129, 140, 248, 0.65);
    background: rgba(99, 102, 241, 0.28);
}

.answer-key-option-btn.is-selected {
    color: #eef2ff;
    border-color: rgba(129, 140, 248, 0.85);
    background: rgba(99, 102, 241, 0.72);
    box-shadow: 0 4px 14px rgba(99, 102, 241, 0.25);
}

.answer-key-item--missing {
    border-color: rgba(245, 158, 11, 0.28);
    background: rgba(245, 158, 11, 0.06);
}

.answer-key-item-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}

.answer-key-item-number {
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--text);
}

.answer-key-bubble {
    min-width: 34px;
    height: 34px;
    padding: 0 10px;
    border-radius: 999px;
    display: inline-grid;
    place-items: center;
    font-size: 0.95rem;
    font-weight: 800;
    letter-spacing: 0.04em;
}

.answer-key-bubble--filled {
    color: #ecfdf5;
    background: rgba(16, 185, 129, 0.85);
    border: 1px solid rgba(52, 211, 153, 0.5);
    box-shadow: 0 4px 14px rgba(16, 185, 129, 0.25);
}

.answer-key-bubble--empty {
    color: #fcd34d;
    background: rgba(245, 158, 11, 0.12);
    border: 1px dashed rgba(245, 158, 11, 0.45);
}

.answer-key-item-thumb {
    width: 100%;
    height: 120px;
    object-fit: contain;
    border-radius: 10px;
    background: #fff;
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.answer-key-item-delete {
    width: 100%;
    margin-top: 2px;
}

@media (max-width: 560px) {
    .answer-key-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 900px) {
    .book-detail-stats {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 560px) {
    .book-detail-hero {
        padding: 16px;
    }

    .book-detail-title {
        font-size: 1.2rem;
    }

    .book-detail-stats {
        grid-template-columns: 1fr;
    }

    .book-detail-tab-head {
        overflow-x: auto;
        flex-wrap: nowrap;
    }
}

.exam-questions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 16px;
}

.exam-question-card {
    margin: 0;
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--surface);
}

.exam-question-card figcaption {
    margin-bottom: 8px;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--muted);
}

.exam-question-card img {
    display: block;
    width: 100%;
    height: auto;
    border-radius: 6px;
    border: 1px solid var(--border);
    background: #fff;
}

.exam-question-card a:hover img {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
}

.exam-take-shell {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.exam-take-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 18px 20px;
}

.exam-take-header h2 {
    margin: 0;
    font-size: 1.1rem;
}

.exam-take-timer-wrap {
    text-align: right;
}

.exam-take-timer-label {
    display: block;
    font-size: 0.78rem;
    color: var(--muted);
    margin-bottom: 4px;
}

.exam-take-timer {
    font-size: 1.5rem;
    font-variant-numeric: tabular-nums;
    color: var(--primary);
}

.exam-take-timer.is-expired {
    color: #ef4444;
}

.exam-take-layout {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: 16px;
    align-items: start;
}

.exam-take-nav {
    position: sticky;
    top: 16px;
}

.exam-take-nav-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
    padding: 16px;
}

.exam-take-nav-btn {
    width: 100%;
    aspect-ratio: 1;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--surface);
    color: var(--text);
    font-weight: 600;
    cursor: pointer;
}

.exam-take-nav-btn.is-active {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.15);
    color: var(--primary);
}

.exam-take-nav-btn.is-answered {
    background: rgba(16, 185, 129, 0.12);
    border-color: rgba(16, 185, 129, 0.35);
}

.exam-take-nav .btn-block {
    margin: 0 16px 16px;
    width: calc(100% - 32px);
}

.exam-take-main {
    min-height: 480px;
}

.exam-take-question {
    display: none;
    padding: 20px;
}

.exam-take-question.is-active {
    display: block;
}

.exam-take-question-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 16px;
}

.exam-take-question-head h3 {
    margin: 0;
}

.exam-take-steps {
    display: flex;
    gap: 8px;
}

.exam-take-image-wrap {
    margin-bottom: 20px;
    border: 1px solid var(--border);
    border-radius: 10px;
    overflow: auto;
    background: #fff;
    text-align: center;
}

.exam-take-image-wrap img {
    display: inline-block;
    width: calc(var(--exam-question-scale, 100) * 1%);
    max-width: none;
    height: auto;
}

.exam-take-options {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.exam-take-option {
    display: inline-flex;
    align-items: center;
    cursor: pointer;
}

.exam-take-option input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.exam-take-option span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border: 2px solid var(--border);
    border-radius: 50%;
    font-weight: 700;
    transition: border-color 0.15s, background 0.15s, color 0.15s;
}

.exam-take-option input:checked + span {
    border-color: var(--primary);
    background: var(--primary);
    color: #fff;
}

body.exam-secure-page .content {
    position: relative;
}

body.exam-secure-active {
    user-select: none;
    -webkit-user-select: none;
}

body.exam-secure-active .exam-secure-content,
body.exam-secure-active .exam-secure-shell {
    user-select: none;
    -webkit-user-select: none;
    -webkit-touch-callout: none;
}

.exam-secure-content img,
.exam-take-image-wrap img {
    -webkit-user-drag: none;
    user-select: none;
    pointer-events: none;
}

.exam-security-badge {
    display: inline-block;
    margin-top: 8px;
    padding: 4px 8px;
    border-radius: 999px;
    font-size: 0.72rem;
    font-weight: 600;
    background: rgba(16, 185, 129, 0.15);
    color: #6ee7b7;
}

.exam-security-gate,
.exam-security-lock {
    position: fixed;
    inset: 0;
    z-index: 260000;
    display: grid;
    place-items: center;
    padding: 20px;
    background: rgba(2, 6, 23, 0.92);
    backdrop-filter: blur(8px);
}

.exam-security-lock[hidden],
.exam-security-gate[hidden] {
    display: none !important;
}

.exam-security-gate-card,
.exam-security-lock-card {
    width: min(520px, 100%);
    padding: 24px;
}

.exam-security-gate-card h2,
.exam-security-lock-card h2 {
    margin: 0 0 12px;
}

.exam-security-rules {
    margin: 0 0 16px;
    padding-left: 18px;
    color: var(--muted);
}

.exam-security-rules li {
    margin-bottom: 8px;
}

.exam-security-violation-note {
    margin: 0 0 16px;
    font-size: 0.9rem;
}

.exam-security-lock-reason {
    margin: 0 0 10px;
    color: #fecaca;
    font-weight: 600;
}

body.exam-locked .exam-secure-shell {
    pointer-events: none;
}

.exam-capture-shield {
    position: fixed;
    inset: 0;
    z-index: 250000;
    background: #ffffff;
    pointer-events: none;
}

.exam-capture-shield[hidden] {
    display: none !important;
}

body.exam-capture-shielded .exam-secure-shell,
body.exam-capture-shielded .exam-secure-content,
body.exam-capture-shielded .exam-take-image-wrap img {
    visibility: hidden;
}

.exam-anti-capture-flash {
    display: none !important;
}

.exam-proctor-camera {
    position: fixed;
    bottom: 16px;
    right: 16px;
    z-index: 240000;
    width: 168px;
    border-radius: 10px;
    overflow: hidden;
    border: 2px solid rgba(16, 185, 129, 0.55);
    background: #0f172a;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
    touch-action: none;
}

.exam-proctor-camera--dragging {
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.45);
}

.exam-proctor-camera[hidden] {
    display: none !important;
}

.exam-proctor-camera-label {
    display: block;
    padding: 5px 8px;
    font-size: 0.68rem;
    font-weight: 600;
    text-align: center;
    color: #6ee7b7;
    background: rgba(16, 185, 129, 0.12);
    cursor: grab;
    user-select: none;
    touch-action: none;
}

.exam-proctor-camera--dragging .exam-proctor-camera-label,
.exam-proctor-camera-label:active {
    cursor: grabbing;
}

.exam-proctor-camera video {
    display: block;
    width: 100%;
    height: auto;
    aspect-ratio: 4 / 3;
    object-fit: cover;
    transform: scaleX(-1);
}

body.exam-capture-shielded .exam-proctor-camera,
body.exam-locked .exam-proctor-camera {
    visibility: hidden;
}

@media (max-width: 960px) {
    .exam-take-layout {
        grid-template-columns: 1fr;
    }

    .exam-take-nav {
        position: static;
    }

    .exam-take-header {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 960px) {
    .exam-maker-form {
        flex-direction: column;
        min-height: auto;
    }

    .exam-maker-workspace {
        min-height: 520px;
    }

    .pdf-workspace {
        min-height: 480px;
    }

    .pdf-workspace .pdf-canvas-wrap,
    .pdf-canvas-wrap {
        min-height: 360px;
    }

    .exam-maker-sidebar {
        width: 100%;
        flex: none;
    }

    .exam-drop-zone {
        min-height: 320px;
    }
}

.pdf-toolbar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
    font-size: 0.82rem;
    color: var(--muted);
}

.pdf-toolbar--bottom {
    margin-bottom: 0;
    margin-top: 10px;
    justify-content: center;
}

.pdf-page-jump {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin: 0;
    color: var(--muted);
    font-size: 0.82rem;
    white-space: nowrap;
}

.pdf-page-input {
    width: 4.2rem;
    min-width: 3.4rem;
    height: 32px;
    padding: 0 6px;
    border: 1px solid rgba(148, 163, 184, 0.35);
    border-radius: 8px;
    background: rgba(15, 23, 42, 0.72);
    color: #e2e8f0;
    text-align: center;
    font-size: 0.85rem;
    -moz-appearance: textfield;
}

.pdf-page-input::-webkit-outer-spin-button,
.pdf-page-input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.pdf-page-input:focus {
    outline: none;
    border-color: rgba(56, 189, 248, 0.7);
    box-shadow: 0 0 0 2px rgba(56, 189, 248, 0.18);
}

.pdf-stage {
    position: relative;
    display: inline-block;
    line-height: 0;
    vertical-align: top;
}

.pdf-stage canvas {
    display: block;
    max-width: none;
    width: auto;
    height: auto;
    pointer-events: none;
}

.pdf-hit-layer {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    z-index: 5;
    cursor: crosshair;
    touch-action: none;
}

.pdf-saved-crops {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 6;
}

.pdf-saved-crop {
    position: absolute;
    box-sizing: border-box;
    border: 2px solid #22c55e;
    background: rgba(34, 197, 94, 0.16);
    box-shadow: 0 0 0 1px rgba(15, 23, 42, 0.35);
}

.pdf-saved-crop--pending {
    border-color: #f59e0b;
    background: rgba(245, 158, 11, 0.16);
}

.pdf-saved-crop-label {
    position: absolute;
    top: 0;
    left: 0;
    max-width: 100%;
    padding: 1px 6px;
    background: #15803d;
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    line-height: 1.35;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.pdf-saved-crop--pending .pdf-saved-crop-label {
    background: #b45309;
}

.pdf-selection {
    position: absolute;
    left: 0;
    top: 0;
    display: none;
    border: 2px solid #818cf8;
    background: rgba(99, 102, 241, 0.25);
    box-shadow: 0 0 0 1px rgba(15, 23, 42, 0.5);
    pointer-events: none;
    z-index: 7;
}

.pdf-selection.is-visible {
    display: block;
}

.pdf-stage > .crop-add-bar {
    z-index: 8;
}

.selected-questions-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.empty-inline {
    margin: 0;
    padding: 8px 0;
    font-size: 0.82rem;
}

.selected-question-card {
    position: relative;
    width: 120px;
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
    background: var(--surface);
}

.selected-question-card img {
    display: block;
    width: 100%;
    height: 90px;
    object-fit: cover;
    background: #0f172a;
}

.selected-question-meta {
    padding: 6px 28px 6px 6px;
    font-size: 0.72rem;
}

.selected-question-meta span {
    display: block;
    font-weight: 600;
}

.selected-question-meta small {
    color: var(--muted);
}

.selected-question-card .btn-danger-text {
    position: absolute;
    top: 4px;
    right: 4px;
    min-width: 26px;
    padding: 2px 6px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}
.form-section-title {
    margin: 8px 0 4px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border);
    font-size: 0.95rem;
    color: var(--text);
}
.form-section-title:not(:first-child) { margin-top: 20px; }
.form-hint {
    margin: 0 0 12px;
    font-size: 0.82rem;
    color: var(--muted);
}
.day-schedule-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 16px;
}
.day-schedule-row {
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: #0b1220;
}
.day-schedule-row.is-active {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.08);
}
.day-check {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 0;
    cursor: pointer;
    color: var(--text);
    font-size: 0.9rem;
}
.day-check input { width: auto; margin: 0; accent-color: var(--primary); }
.day-times {
    display: none;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid var(--border);
}
.day-schedule-row.is-active .day-times { display: grid; }
.day-times label { margin-bottom: 0; }
.time-label {
    display: block;
    font-size: 0.75rem;
    color: var(--muted);
    margin-bottom: 4px;
}

/* Haftalik ders programi */
.main-area:has(.schedule-board) {
    overflow: visible;
}

.content:has(.schedule-board) {
    padding: 16px 12px 32px;
    overflow: visible;
}

.schedule-board {
    display: flex;
    flex-direction: row;
    align-items: flex-start;
    gap: 14px;
    width: 100%;
    height: auto;
    max-height: none;
}

.student-cards-panel {
    flex: 0 0 172px;
    width: 172px;
    position: sticky;
    top: 12px;
    align-self: flex-start;
    max-height: calc(100vh - 110px);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.student-cards-panel .card-header {
    padding: 10px 12px;
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
    flex-shrink: 0;
}

.student-cards-header h2 {
    margin: 0;
    font-size: 0.82rem;
    font-weight: 600;
}

.student-cards-header .panel-hint {
    padding: 0;
    margin: 0;
    font-size: 0.7rem;
    line-height: 1.3;
}

.student-cards-header .badge {
    align-self: flex-start;
    font-size: 0.65rem;
    padding: 3px 8px;
}

.panel-hint { color: var(--muted); font-size: 0.82rem; }

.student-cards-list {
    display: flex;
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 8px;
    padding: 8px 10px 10px;
    overflow-x: hidden;
    overflow-y: auto;
    flex: 1;
    min-height: 0;
}

.student-card {
    --card-accent: var(--primary);
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 9px;
    border-radius: 8px;
    border: 1px solid color-mix(in srgb, var(--card-accent) 32%, var(--border));
    border-left: 3px solid var(--card-accent);
    background: var(--surface);
    background: color-mix(in srgb, var(--card-accent) 16%, var(--surface));
    box-shadow: 0 1px 0 color-mix(in srgb, var(--card-accent) 12%, transparent);
    cursor: grab;
    transition: transform 0.15s, border-color 0.15s, box-shadow 0.15s;
    user-select: none;
    flex: 0 0 auto;
    width: 100%;
    min-width: 0;
    max-width: none;
    touch-action: pan-x pan-y;
}

.student-card > div {
    min-width: 0;
    overflow: hidden;
}

.student-card:hover {
    border-color: color-mix(in srgb, var(--card-accent) 55%, var(--primary));
    box-shadow: 0 2px 8px color-mix(in srgb, var(--card-accent) 22%, transparent);
    transform: translateY(-1px);
}

.student-card.is-dragging {
    opacity: 0.45;
    cursor: grabbing;
    transform: scale(0.98);
}

.student-card-general {
    --card-accent: #64748b;
}

.student-card-ghost {
    opacity: 0.92;
    cursor: grabbing;
    box-shadow: 0 8px 24px rgba(15, 23, 42, 0.22);
    transform: rotate(-1deg);
}

body.is-schedule-dragging {
    touch-action: none;
    user-select: none;
}

body.is-schedule-dragging .student-cards-list {
    overflow: hidden;
}

.student-card-avatar {
    width: 28px;
    height: 28px;
    border-radius: 6px;
    font-size: 0.72rem;
    display: grid;
    place-items: center;
    font-weight: 700;
    background: var(--card-accent, var(--primary));
    color: #fff;
    flex-shrink: 0;
}

.student-card strong {
    display: block;
    font-size: 0.74rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.student-card small {
    display: block;
    color: var(--muted);
    font-size: 0.64rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}


.weekly-calendar-wrap {
    flex: 1 1 auto;
    width: 100%;
    min-width: 0;
    display: flex;
    flex-direction: column;
}

.weekly-calendar-wrap--builder {
    flex: 1 1 0;
    min-width: 0;
}

.weekly-calendar-wrap .compact-header {
    padding: 10px 14px;
}

.compact-header { padding: 12px 16px; }
.compact-header h2 { font-size: 1rem; }

.weekly-calendar-wrap .compact-header h2 {
    font-size: 0.95rem;
}

.weekly-calendar-scroll {
    overflow: visible;
    width: 100%;
    padding: 0 0 12px;
}

.weekly-calendar-wrap--builder .weekly-calendar-scroll--desktop {
    width: 100%;
    padding: 0 8px 12px;
    box-sizing: border-box;
}

.weekly-calendar {
    display: grid;
    grid-template-columns: 52px repeat(7, minmax(0, 1fr));
    grid-template-rows: 30px repeat(var(--hour-rows, 19), var(--slot-h, 38px));
    width: 100%;
    max-width: 100%;
    height: auto;
    min-height: calc(30px + var(--hour-rows, 19) * var(--slot-h, 38px));
    min-width: 0;
    align-content: start;
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: visible;
    --slot-h: 38px;
}

.lesson-day-picker,
.weekly-calendar-mobile-days {
    display: none;
}

.lesson-day-picker {
    position: relative;
    margin: 0 10px 12px;
}

.lesson-day-picker-trigger {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--card);
    color: var(--text);
    font-size: 0.92rem;
    font-weight: 600;
    cursor: pointer;
    touch-action: manipulation;
}

.lesson-day-picker-caret {
    width: 8px;
    height: 8px;
    border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    transform: rotate(45deg);
    margin-top: -3px;
    flex-shrink: 0;
    transition: transform 0.2s ease;
}

.lesson-day-picker.is-open .lesson-day-picker-caret {
    transform: rotate(-135deg);
    margin-top: 3px;
}

.lesson-day-picker-backdrop {
    position: fixed;
    inset: 0;
    z-index: 180;
    background: rgba(2, 6, 23, 0.55);
    backdrop-filter: blur(2px);
}

.lesson-day-picker-backdrop[hidden],
.lesson-day-picker-panel[hidden] {
    display: none !important;
}

.lesson-day-picker-panel {
    position: fixed;
    left: 16px;
    right: 16px;
    top: 50%;
    z-index: 181;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 10px;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: var(--card);
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
}

.lesson-day-picker-option {
    display: block;
    width: 100%;
    padding: 12px 14px;
    border: 0;
    border-radius: 10px;
    background: transparent;
    color: var(--muted);
    font-size: 0.92rem;
    font-weight: 500;
    text-align: left;
    cursor: pointer;
}

.lesson-day-picker-option:hover,
.lesson-day-picker-option.is-active {
    background: rgba(99, 102, 241, 0.15);
    color: var(--text);
}

body.lesson-day-picker-open {
    overflow: hidden;
}

.lesson-week-picker {
    position: relative;
    flex-shrink: 0;
}

.weekly-calendar-header-title {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    min-width: 0;
}

.weekly-calendar-header-title h2 {
    margin: 0;
}

.lesson-week-picker-trigger {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    max-width: 100%;
    padding: 6px 10px;
    border: 1px solid rgba(56, 189, 248, 0.35);
    border-radius: 999px;
    background: rgba(15, 23, 42, 0.85);
    color: #7dd3fc;
    font-size: 0.72rem;
    font-weight: 600;
    font-variant-numeric: tabular-nums;
    cursor: pointer;
    touch-action: manipulation;
}

.lesson-week-picker-trigger span[data-lesson-week-label] {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 180px;
}

.lesson-week-picker-caret {
    width: 7px;
    height: 7px;
    border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    transform: rotate(45deg);
    margin-top: -2px;
    flex-shrink: 0;
    transition: transform 0.2s ease;
}

.lesson-week-picker.is-open .lesson-week-picker-caret {
    transform: rotate(-135deg);
    margin-top: 2px;
}

.lesson-week-picker-backdrop {
    position: fixed;
    inset: 0;
    z-index: 180;
    background: rgba(2, 6, 23, 0.45);
}

.lesson-week-picker-backdrop[hidden],
.lesson-week-picker-panel[hidden] {
    display: none !important;
}

.lesson-week-picker-panel {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    z-index: 190;
    min-width: 240px;
    max-width: min(92vw, 320px);
    padding: 8px;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: #0f172a;
    box-shadow: 0 18px 40px rgba(2, 6, 23, 0.45);
}

.lesson-week-picker-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    margin-bottom: 8px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border);
}

.lesson-week-picker-nav-hint {
    font-size: 0.68rem;
    font-weight: 600;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    color: var(--muted);
    text-align: center;
}

.lesson-week-picker-nav-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: rgba(15, 23, 42, 0.9);
    color: var(--text);
    cursor: pointer;
}

.lesson-week-picker-nav-btn:hover {
    border-color: rgba(56, 189, 248, 0.45);
    color: #7dd3fc;
}

.lesson-week-picker-options {
    display: flex;
    flex-direction: column;
    gap: 4px;
    max-height: 280px;
    overflow-y: auto;
}

.lesson-week-picker-option {
    display: block;
    width: 100%;
    padding: 10px 12px;
    border: 0;
    border-radius: 10px;
    background: transparent;
    color: var(--text);
    font-size: 0.82rem;
    font-weight: 600;
    font-variant-numeric: tabular-nums;
    text-align: left;
    cursor: pointer;
}

.lesson-week-picker-option:hover,
.lesson-week-picker-option.is-active {
    background: rgba(56, 189, 248, 0.14);
    color: #7dd3fc;
}

.lesson-week-picker-option.is-current {
    border: 1px solid rgba(56, 189, 248, 0.25);
}

body.lesson-week-picker-open {
    overflow: hidden;
}

.weekly-calendar-day-panel {
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
    background: rgba(15, 23, 42, 0.2);
}

.weekly-calendar-day-body {
    display: flex;
    flex-direction: column;
}

.weekly-calendar-day-row {
    display: grid;
    grid-template-columns: 54px minmax(0, 1fr);
    align-items: stretch;
}

.weekly-calendar-day-row .cal-time-label {
    border-bottom: 1px solid var(--border);
    border-right: 1px solid var(--border);
}

.weekly-calendar-day-row .cal-slot {
    border-bottom: 1px solid var(--border);
}

.weekly-calendar-day-row:last-child .cal-time-label,
.weekly-calendar-day-row:last-child .cal-slot {
    border-bottom: 0;
}

.weekly-calendar-wrap--builder.is-snapshot-capture .weekly-calendar-scroll--desktop {
    display: block !important;
}

.weekly-calendar-wrap--builder.is-snapshot-capture .weekly-calendar-mobile-days,
.weekly-calendar-wrap--builder.is-snapshot-capture .lesson-day-picker,
.weekly-calendar-wrap--builder.is-snapshot-capture .lesson-week-picker {
    display: none !important;
}

.weekly-calendar-wrap--builder.is-snapshot-capture #saveCalendarSnapshotBtn {
    visibility: hidden;
}

@media (max-width: 640px) {
    .content:has(.schedule-board) {
        padding-left: 0;
        padding-right: 0;
    }

    .schedule-board .weekly-calendar-wrap--builder {
        border-radius: 0;
        border-left: 0;
        border-right: 0;
    }

    .weekly-calendar-wrap--builder .lesson-day-picker,
    .weekly-calendar-wrap--builder .weekly-calendar-mobile-days {
        display: block;
    }

    .weekly-calendar-wrap--builder .lesson-day-picker {
        margin: 0 0 10px;
        padding: 0 10px;
    }

    .weekly-calendar-wrap--builder .weekly-calendar-scroll--desktop {
        display: none;
    }

    .weekly-calendar-wrap--builder .weekly-calendar-mobile-days {
        width: 100%;
        padding: 0 0 12px;
    }

    .weekly-calendar-wrap--builder .weekly-calendar-day-panel {
        border-left: 0;
        border-right: 0;
        border-radius: 0;
    }

    .weekly-calendar-wrap--builder .weekly-calendar-day-row {
        grid-template-columns: 48px minmax(0, 1fr);
    }

    .weekly-calendar-wrap--builder .weekly-calendar-header {
        padding-left: 12px;
        padding-right: 12px;
    }
}

.cal-corner,
.cal-day-header,
.cal-time-label {
    background: #0b1220;
    border-bottom: 1px solid var(--border);
    border-right: 1px solid var(--border);
}

.cal-corner,
.cal-day-header {
    position: sticky;
    top: 0;
    z-index: 6;
}

.cal-day-header {
    padding: 6px 4px;
    text-align: center;
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--text);
}

.cal-time-label {
    height: var(--slot-h, 38px);
    min-height: var(--slot-h, 38px);
    box-sizing: border-box;
    padding: 0 6px;
    font-size: 0.72rem;
    font-weight: 600;
    font-variant-numeric: tabular-nums;
    color: #e2e8f0;
    text-align: right;
    white-space: nowrap;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    line-height: 1;
    overflow: visible;
}

.cal-slot {
    position: relative;
    height: var(--slot-h, 38px);
    min-height: var(--slot-h, 38px);
    box-sizing: border-box;
    border-bottom: 1px solid var(--border);
    border-right: 1px solid var(--border);
    background: rgba(15, 23, 42, 0.35);
    padding: 2px;
    overflow: visible;
}

.cal-slot.is-drag-over {
    background: rgba(99, 102, 241, 0.2);
    outline: 2px dashed var(--primary);
    outline-offset: -2px;
}

.schedule-event {
    position: absolute;
    top: calc(var(--event-offset-min, 0) / 60 * var(--slot-h));
    left: 2px;
    right: 2px;
    z-index: 5;
    cursor: grab;
    background: rgba(31, 41, 55, 0.92);
    border: 1px solid var(--event-color, var(--primary));
    border-left: 4px solid var(--event-color, var(--primary));
    border-radius: 6px;
    padding: 0;
    min-height: 46px;
    height: auto;
    overflow: visible;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.35);
    pointer-events: auto;
}

.schedule-event-body {
    padding: 5px 18px 5px 6px;
    line-height: 1.25;
}

.schedule-event-name {
    font-size: 0.72rem;
    font-weight: 700;
    color: #f9fafb;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.schedule-event-time {
    display: inline-block;
    margin-top: 3px;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.72rem;
    font-weight: 700;
    color: #fff;
    background: rgba(0, 0, 0, 0.45);
    white-space: nowrap;
}

.schedule-event-type {
    margin-top: 3px;
    color: #a5b4fc;
    font-size: 0.64rem;
    font-weight: 700;
    white-space: nowrap;
}

.schedule-event-subject {
    margin-top: 3px;
    color: #cbd5e1;
    font-size: 0.65rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.schedule-event.is-short .schedule-event-subject {
    display: none;
}

.schedule-event.is-short {
    min-height: 40px;
}

.schedule-event-remove {
    position: absolute;
    top: 2px;
    right: 4px;
    border: none;
    background: transparent;
    color: var(--muted);
    cursor: pointer;
    font-size: 1rem;
    line-height: 1;
    padding: 0 4px;
}

.schedule-event-remove:hover { color: #fecaca; }

.schedule-event.is-dragging {
    opacity: 0.55;
    cursor: grabbing;
}

body.is-schedule-dragging .schedule-event:not(.is-dragging) {
    pointer-events: none;
}

.schedule-modal[hidden] { display: none !important; }

.schedule-modal {
    position: fixed;
    inset: 0;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 12px;
    overflow-y: auto;
}

.schedule-modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
}

.schedule-modal-card {
    position: relative;
    z-index: 1;
    width: min(360px, calc(100vw - 24px));
    max-height: calc(100vh - 24px);
    overflow-y: auto;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 14px 16px;
    z-index: 1;
    margin: auto;
}

.schedule-modal-card--wide {
    width: min(640px, calc(100vw - 24px));
}

.table-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    justify-content: flex-end;
}

.answer-key-table {
    max-width: 320px;
}

.answer-key-badge {
    min-width: 28px;
    text-align: center;
    font-weight: 700;
    letter-spacing: 0.04em;
}

.schedule-modal-card h3 {
    margin: 0 0 8px;
    font-size: 1rem;
}

.schedule-modal-card .panel-form {
    padding: 0;
}

.schedule-modal-card .panel-form label {
    margin-bottom: 8px;
    font-size: 0.82rem;
}

.schedule-modal-card .panel-form input,
.schedule-modal-card .panel-form select,
.schedule-modal-card .panel-form textarea {
    padding: 7px 10px;
    margin-top: 4px;
    font-size: 0.88rem;
}

.schedule-modal-card .panel-form textarea {
    min-height: 36px;
    resize: vertical;
}

.schedule-modal-card .form-row {
    gap: 8px;
}

.modal-summary {
    margin-bottom: 8px;
    padding: 7px 10px;
    border-radius: 8px;
    background: rgba(99, 102, 241, 0.12);
    font-size: 0.78rem;
    color: var(--muted);
    line-height: 1.35;
}

.duration-presets {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px;
    margin-bottom: 6px;
    font-size: 0.78rem;
    color: var(--muted);
}

.duration-presets .btn-sm {
    padding: 5px 8px;
    font-size: 0.72rem;
}

.modal-actions {
    display: flex;
    gap: 8px;
    justify-content: flex-end;
    margin-top: 6px;
    padding-top: 4px;
}

.schedule-lesson-date-section {
    display: none;
    margin-top: 2px;
}

.schedule-lesson-date-section.is-visible {
    display: block;
}

.schedule-lesson-date-section[hidden] {
    display: none !important;
}

.schedule-lesson-type-fieldset {
    margin: 0 0 8px;
    padding: 0;
    border: none;
}

.schedule-lesson-type-fieldset legend {
    margin-bottom: 6px;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--text);
}

.schedule-lesson-type-options {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.schedule-lesson-type-option {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 10px;
    border: 1px solid rgba(148, 163, 184, 0.35);
    border-radius: 8px;
    font-size: 0.8rem;
    cursor: pointer;
    user-select: none;
}

.schedule-lesson-type-option:has(input:checked) {
    border-color: rgba(99, 102, 241, 0.55);
    background: rgba(99, 102, 241, 0.1);
}

.schedule-lesson-type-option input {
    margin: 0;
}

.schedule-completion-section {
    display: none;
    gap: 8px;
    margin-top: 4px;
    padding-top: 8px;
    border-top: 1px solid rgba(148, 163, 184, 0.2);
}

.schedule-completion-section.is-visible {
    display: grid;
}

.schedule-completion-section[hidden] {
    display: none !important;
}

.schedule-completion-fieldset {
    margin: 0;
    padding: 0;
    border: none;
}

.schedule-completion-fieldset legend {
    margin-bottom: 6px;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--text);
}

.schedule-completion-options {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.schedule-completion-option {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 10px;
    border: 1px solid rgba(148, 163, 184, 0.35);
    border-radius: 8px;
    font-size: 0.8rem;
    cursor: pointer;
    user-select: none;
}

.schedule-completion-option:has(input:checked) {
    border-color: rgba(99, 102, 241, 0.55);
    background: rgba(99, 102, 241, 0.1);
}

.schedule-completion-option input {
    margin: 0;
}

.exam-violation-btn {
    border: none;
    cursor: pointer;
    font: inherit;
    line-height: 1.2;
    padding: 4px 8px;
}

.exam-violation-btn:hover {
    filter: brightness(1.08);
}

.exam-violations-list {
    margin-top: 8px;
}

.exam-violations-empty {
    margin: 0;
    padding: 10px 12px;
    border-radius: 8px;
    background: rgba(245, 158, 11, 0.12);
    color: var(--muted);
    font-size: 0.82rem;
    line-height: 1.45;
}

.exam-violations-items {
    margin: 0;
    padding: 0;
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.exam-violations-item {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    justify-content: space-between;
    gap: 8px;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.02);
}

.exam-violations-label {
    flex: 1 1 220px;
    font-size: 0.88rem;
    color: var(--text);
}

.exam-violations-time {
    flex: 0 0 auto;
    font-size: 0.78rem;
    color: var(--muted);
    white-space: nowrap;
}

@media (max-width: 900px) {
    .schedule-board {
        flex-direction: column;
    }

    .student-cards-panel {
        width: 100%;
        max-width: none;
        position: static;
        max-height: none;
    }

    .student-cards-list {
        flex-direction: row;
        overflow-x: auto;
        overflow-y: hidden;
        padding: 0 12px 12px;
    }

    .student-card {
        width: auto;
        min-width: 148px;
        max-width: 200px;
        touch-action: pan-x;
    }

    .weekly-calendar-scroll {
        overflow-x: visible;
        width: 100%;
    }

    .weekly-calendar-wrap--builder .weekly-calendar-scroll--desktop {
        padding: 0 6px 12px;
    }

    .weekly-calendar {
        width: 100%;
        max-width: 100%;
        grid-template-columns: 48px repeat(7, minmax(0, 1fr));
        grid-template-rows: 28px repeat(var(--hour-rows, 19), var(--slot-h, 36px));
        min-height: calc(28px + var(--hour-rows, 19) * var(--slot-h, 36px));
    }

    .cal-time-label,
    .cal-slot {
        height: var(--slot-h, 36px);
        min-height: var(--slot-h, 36px);
    }
}
.info-box { padding: 20px; color: var(--muted); font-size: 0.92rem; }
.info-box p { margin: 0 0 10px; }
.link { color: var(--info); text-decoration: underline; }
.sub-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
    padding: 6px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 12px;
}
.sub-nav a {
    padding: 10px 16px;
    border-radius: 8px;
    color: var(--muted);
    font-size: 0.92rem;
    font-weight: 500;
}
.sub-nav a:hover,
.sub-nav a.active {
    background: rgba(99, 102, 241, 0.15);
    color: var(--text);
}

body.sub-nav-mobile-open {
    overflow: hidden;
}

.sub-nav-shell--student,
.sub-nav-shell--parent,
.sub-nav-shell--lesson-schedule,
.sub-nav-shell--homework,
.sub-nav-shell--practice-exam,
.sub-nav-shell--online-lesson,
.sub-nav-shell--accounting,
.sub-nav-shell--curriculum {
    margin-bottom: 20px;
}

/* Admin student list — mobile cards */
.student-list-cards {
    display: none;
}

.student-list-empty {
    margin: 0;
    padding: 20px;
}

.student-list-card {
    padding: 14px;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: rgba(15, 23, 42, 0.35);
}

.student-list-card-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 12px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border);
}

.student-list-card-name {
    margin: 0;
    font-size: 1rem;
    line-height: 1.35;
    word-break: break-word;
}

.student-list-card-grade {
    flex-shrink: 0;
    padding: 4px 8px;
    border-radius: 999px;
    background: rgba(99, 102, 241, 0.15);
    color: #c7d2fe;
    font-size: 0.72rem;
    font-weight: 700;
    white-space: nowrap;
}

.student-list-card-meta {
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.student-list-card-row {
    display: grid;
    grid-template-columns: 92px minmax(0, 1fr);
    gap: 8px 10px;
    align-items: start;
}

.student-list-card-row dt {
    margin: 0;
    color: var(--muted);
    font-size: 0.76rem;
    font-weight: 600;
}

.student-list-card-row dd {
    margin: 0;
    font-size: 0.86rem;
    line-height: 1.45;
    word-break: break-word;
}

.student-fee-stack {
    display: flex;
    flex-direction: column;
    gap: 4px;
    line-height: 1.35;
}

.accounting-carryover-hint {
    color: var(--muted);
    font-size: 0.82em;
}

.student-list-card-actions {
    margin-top: 14px;
    padding-top: 12px;
    border-top: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.student-list-card-form {
    display: block;
    width: 100%;
}

.student-list-table-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    align-items: center;
}

.student-list-card-form .btn-block {
    width: 100%;
    justify-content: center;
}

@media (max-width: 640px) {
    .student-list-card-wrap .card-header {
        flex-wrap: wrap;
        gap: 8px;
    }

    .student-list-cards {
        display: flex;
        flex-direction: column;
        gap: 12px;
        padding: 0 12px 14px;
    }

    .student-list-table-wrap {
        display: none;
    }
}

.sub-nav-mobile-trigger,
.sub-nav-mobile-backdrop,
.sub-nav-mobile-panel {
    display: none;
}

.sub-nav-mobile-trigger {
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--card);
    color: var(--text);
    font-size: 0.92rem;
    font-weight: 600;
    cursor: pointer;
    touch-action: manipulation;
}

.sub-nav-mobile-trigger-label {
    min-width: 0;
    text-align: left;
}

.sub-nav-mobile-caret {
    width: 8px;
    height: 8px;
    border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    transform: rotate(45deg);
    margin-top: -3px;
    flex-shrink: 0;
    transition: transform 0.2s ease;
}

.sub-nav-shell[data-sub-nav-mobile].is-open .sub-nav-mobile-caret {
    transform: rotate(-135deg);
    margin-top: 3px;
}

.sub-nav-mobile-backdrop {
    position: fixed;
    inset: 0;
    z-index: 180;
    background: rgba(2, 6, 23, 0.55);
    backdrop-filter: blur(2px);
}

.sub-nav-mobile-panel {
    position: fixed;
    left: 16px;
    right: 16px;
    top: 50%;
    z-index: 181;
    transform: translateY(-50%);
    flex-direction: column;
    gap: 6px;
    padding: 10px;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: var(--card);
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
}

.sub-nav-mobile-backdrop[hidden],
.sub-nav-mobile-panel[hidden] {
    display: none !important;
}

.sub-nav-mobile-option {
    display: block;
    padding: 12px 14px;
    border-radius: 10px;
    color: var(--muted);
    font-size: 0.92rem;
    font-weight: 500;
}

.sub-nav-mobile-option:hover,
.sub-nav-mobile-option.is-active {
    background: rgba(99, 102, 241, 0.15);
    color: var(--text);
}

@media (max-width: 640px) {
    .sub-nav-shell[data-sub-nav-mobile] .sub-nav-mobile-trigger {
        display: flex;
    }

    .sub-nav-shell[data-sub-nav-mobile] .sub-nav--inline {
        display: none;
    }

    .sub-nav-shell[data-sub-nav-mobile].is-open .sub-nav-mobile-backdrop:not([hidden]) {
        display: block;
    }

    .sub-nav-shell[data-sub-nav-mobile].is-open .sub-nav-mobile-panel:not([hidden]) {
        display: flex;
    }
}

.homework-week-card {
    margin-bottom: 20px;
}

.homework-week-grid {
    display: grid;
    grid-template-columns: repeat(7, minmax(0, 1fr));
    gap: 10px;
    padding: 0 16px 16px;
}

.homework-week-day {
    min-height: 120px;
    padding: 10px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.02);
}

.homework-week-day-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 6px;
    margin-bottom: 8px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border);
    font-size: 0.82rem;
}

.homework-week-empty {
    margin: 0;
    font-size: 0.78rem;
    color: var(--muted);
}

.homework-week-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.homework-week-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 8px;
    border-radius: 8px;
    background: rgba(99, 102, 241, 0.08);
    border: 1px solid transparent;
    font-size: 0.78rem;
}

.homework-week-item--done {
    background: rgba(34, 197, 94, 0.16);
    border-color: rgba(34, 197, 94, 0.45);
}

.homework-week-item--partial {
    background: rgba(234, 179, 8, 0.16);
    border-color: rgba(234, 179, 8, 0.45);
}

.homework-week-item--missing {
    background: rgba(239, 68, 68, 0.14);
    border-color: rgba(239, 68, 68, 0.45);
}

.homework-week-item--pending {
    background: rgba(255, 255, 255, 0.03);
    border-color: var(--border);
}

.homework-week-state {
    display: inline-flex;
    align-self: flex-start;
    padding: 2px 8px;
    border-radius: 999px;
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    text-transform: uppercase;
}

.homework-week-item--done .homework-week-state {
    background: rgba(34, 197, 94, 0.22);
    color: #bbf7d0;
}

.homework-week-item--partial .homework-week-state {
    background: rgba(234, 179, 8, 0.22);
    color: #fde68a;
}

.homework-week-item--missing .homework-week-state {
    background: rgba(239, 68, 68, 0.22);
    color: #fecaca;
}

.homework-week-item--pending .homework-week-state {
    background: rgba(148, 163, 184, 0.18);
    color: #cbd5e1;
}

.parent-study-calendar-card .card-header h2 {
    font-size: 1.05rem;
}

.parent-study-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    padding: 0 16px 14px;
}

.parent-study-legend-item {
    display: inline-flex;
    align-items: center;
    padding: 6px 12px;
    border-radius: 999px;
    font-size: 0.78rem;
    font-weight: 600;
    border: 1px solid transparent;
}

.parent-study-legend-item--done {
    background: rgba(34, 197, 94, 0.16);
    border-color: rgba(34, 197, 94, 0.45);
    color: #bbf7d0;
}

.parent-study-legend-item--partial {
    background: rgba(234, 179, 8, 0.16);
    border-color: rgba(234, 179, 8, 0.45);
    color: #fde68a;
}

.parent-study-legend-item--missing {
    background: rgba(239, 68, 68, 0.14);
    border-color: rgba(239, 68, 68, 0.45);
    color: #fecaca;
}

.parent-study-calendar-day-head {
    align-items: flex-start;
}

.parent-study-calendar-day-title {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.parent-study-calendar-date {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--muted);
}

.parent-study-calendar-day {
    min-height: 150px;
}

.parent-study-calendar-grid {
    padding-top: 4px;
}

.homework-week-item strong {
    font-size: 0.82rem;
    line-height: 1.35;
}

.homework-edit-form {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px;
    margin: 0;
}

.homework-submit-form {
    margin: 0;
}

.homework-edit-status {
    min-width: 130px;
    padding: 6px 8px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--card);
    color: var(--text);
    font-size: 0.82rem;
}

.homework-plan-form {
    padding-bottom: 16px;
}

.homework-plan-picker {
    margin: 0 16px 16px;
    padding: 14px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.02);
}

.homework-plan-picker h3 {
    margin: 0 0 4px;
    font-size: 1rem;
}

.homework-plan-picker .form-hint {
    margin: 0;
}

.homework-plan-picker .empty {
    margin: 10px 0 0;
}

.homework-plan-picker-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 10px;
}

.panel-form label.homework-plan-picker-item {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: flex-start;
    gap: 10px;
    width: auto;
    margin: 0;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--card);
    cursor: pointer;
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--text);
    text-align: left;
    direction: ltr;
}

.panel-form label.homework-plan-picker-item input[type="checkbox"] {
    width: 18px;
    min-width: 18px;
    height: 18px;
    margin: 0;
    padding: 0;
    flex: 0 0 18px;
    order: 0;
}

.panel-form label.homework-plan-picker-item span {
    flex: 1 1 auto;
    min-width: 0;
    text-align: left;
}

.homework-plan-preferences {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
    margin: 0 16px 16px;
}

.homework-plan-preference {
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: rgba(99, 102, 241, 0.08);
}

.homework-plan-preference label {
    display: flex;
    flex-direction: column;
    gap: 6px;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text);
}

.homework-plan-preference input[type="number"] {
    max-width: 120px;
    padding: 7px 10px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--card);
    color: var(--text);
    font-size: 0.92rem;
}

.homework-plan-preference .form-hint {
    margin: 8px 0 0;
}

.homework-plan-extra-programs {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
    padding: 0 16px 12px;
}

.homework-plan-extra-program {
    padding: 14px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.02);
}

.homework-plan-extra-program-head h3 {
    margin: 0 0 4px;
    font-size: 1rem;
}

.homework-plan-extra-program-head .form-hint {
    margin: 0 0 10px;
}

.homework-plan-extra-program-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
}

.homework-plan-extra-program-grid label {
    display: flex;
    flex-direction: column;
    gap: 4px;
    font-size: 0.78rem;
    color: var(--muted);
}

.homework-plan-extra-program-grid input[type="number"],
.homework-plan-extra-program-grid input[type="time"] {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--surface);
    color: var(--text);
}

.homework-plan-rows {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 0 16px;
}

.homework-plan-row {
    display: grid;
    grid-template-columns: minmax(140px, 1fr) minmax(120px, 0.8fr) minmax(120px, 0.8fr) auto;
    gap: 10px;
    align-items: end;
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.02);
}

.homework-plan-row label {
    display: flex;
    flex-direction: column;
    gap: 4px;
    font-size: 0.78rem;
    color: var(--muted);
}

.homework-plan-row select,
.homework-plan-row input[type="time"] {
    width: 100%;
    padding: 7px 10px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--card);
    color: var(--text);
    font-size: 0.88rem;
}

.homework-plan-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: flex-end;
    padding: 12px 16px 0;
}

.homework-week-time {
    font-size: 0.78rem;
    font-weight: 700;
    color: #93c5fd;
}

.exam-result-stat-btn {
    border: none;
    cursor: pointer;
    font: inherit;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 999px;
    line-height: 1.2;
}

.exam-result-stat-btn--wrong {
    color: #fecaca;
    background: rgba(239, 68, 68, 0.15);
}

.exam-result-stat-btn--wrong:hover {
    background: rgba(239, 68, 68, 0.28);
}

.exam-result-stat-btn--empty {
    color: #fde68a;
    background: rgba(245, 158, 11, 0.15);
}

.exam-result-stat-btn--empty:hover {
    background: rgba(245, 158, 11, 0.28);
}

.exam-result-questions-modal {
    width: min(760px, calc(100vw - 24px));
}

.exam-result-questions-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
    max-height: min(70vh, 720px);
    overflow-y: auto;
}

.exam-result-questions-empty {
    margin: 0;
    padding: 12px;
    color: var(--muted);
    font-size: 0.88rem;
}

.exam-result-question-item {
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.02);
}

.exam-result-question-head {
    margin-bottom: 8px;
}

.exam-result-question-answers {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 16px;
    margin-bottom: 10px;
    font-size: 0.82rem;
    color: var(--muted);
}

.exam-result-question-correct {
    color: #6ee7b7;
    font-weight: 600;
}

.exam-result-question-image {
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--border);
    background: #fff;
}

.exam-result-question-image img {
    display: block;
    width: 100%;
    height: auto;
}

@media (max-width: 900px) {
    .homework-plan-preferences {
        grid-template-columns: 1fr;
    }

    .homework-plan-extra-programs {
        grid-template-columns: 1fr;
    }

    .homework-plan-extra-program-grid {
        grid-template-columns: 1fr;
    }

    .homework-plan-row {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 1100px) {
    .homework-week-grid,
    .student-lesson-week-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 640px) {
    .homework-week-grid,
    .student-lesson-week-grid {
        grid-template-columns: 1fr;
    }
}

.inline-form { display: inline; margin: 0; }

.homework-status-form {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
}

.homework-status-select {
    min-width: 130px;
    padding: 6px 8px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--surface);
    color: var(--text);
    font-size: 0.82rem;
}

.homework-submit-layout {
    display: grid;
    grid-template-columns: minmax(260px, 340px) minmax(0, 1fr);
    gap: 16px;
    align-items: start;
}

.homework-submit-empty,
.homework-submit-hint {
    padding: 0 16px 16px;
    margin: 0;
}

.homework-submit-today-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 0 16px 16px;
}

.homework-submit-item {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--card);
    color: var(--text);
    text-align: left;
    cursor: pointer;
    transition: border-color 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.homework-submit-item:hover {
    border-color: rgba(99, 102, 241, 0.45);
}

.homework-submit-item.is-active {
    border-color: var(--primary);
    box-shadow: 0 0 0 1px rgba(99, 102, 241, 0.25);
    background: rgba(99, 102, 241, 0.08);
}

.homework-submit-item--remediation {
    border-color: rgba(245, 158, 11, 0.45);
    background: rgba(245, 158, 11, 0.06);
}

.homework-submit-item--remediation.is-active {
    border-color: #f59e0b;
    box-shadow: 0 0 0 1px rgba(245, 158, 11, 0.25);
    background: rgba(245, 158, 11, 0.12);
}

.homework-submit-item-tag {
    margin-bottom: 2px;
}

.homework-submit-item-time {
    font-size: 0.78rem;
    color: var(--muted);
    font-weight: 600;
}

.homework-submit-item-title {
    font-size: 0.92rem;
    line-height: 1.35;
}

.homework-submit-item-outcome {
    font-size: 0.78rem;
    color: var(--muted);
    line-height: 1.35;
}

.homework-submit-item-meta {
    font-size: 0.78rem;
    color: var(--muted);
}

.homework-submit-item-status {
    margin-top: 4px;
}

.homework-submit-optik {
    min-height: 420px;
    position: relative;
    background: var(--bg);
}

.homework-submit-optik > .card-header {
    background: var(--bg);
}

.homework-optik-placeholder {
    padding: 48px 24px;
    text-align: center;
    color: var(--muted);
}

.homework-optik-placeholder p {
    margin: 0 0 8px;
}

.homework-optik-loading {
    position: absolute;
    inset: 0;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(15, 23, 42, 0.35);
    color: #fff;
    font-weight: 600;
    border-radius: inherit;
}

.homework-optik-loading[hidden] {
    display: none !important;
    pointer-events: none;
}

.homework-optik-content {
    padding-bottom: 16px;
}

.homework-optik-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 12px;
    padding: 16px;
    border-bottom: 1px solid var(--border);
}

.homework-optik-header h2 {
    margin: 0 0 4px;
    font-size: 1.05rem;
}

.homework-optik-header-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.homework-optik-table-wrap {
    overflow-x: auto;
    padding: 12px 16px;
    background: var(--bg);
}

.homework-optik-table {
    width: auto;
    max-width: 100%;
    border-collapse: collapse;
    margin: 0;
    background: var(--bg);
}

.homework-optik-table th,
.homework-optik-table td {
    border: 1px solid var(--border);
    text-align: center;
    padding: 4px 6px;
    background: var(--bg);
}

.homework-optik-table th:not(:first-child):not(.homework-optik-outcome-head),
.homework-optik-table td:not(:first-child):not(.homework-optik-outcome) {
    width: 38px;
    min-width: 38px;
    max-width: 42px;
    padding: 4px;
}

.homework-optik-table th {
    background: var(--surface);
    font-size: 0.78rem;
    color: var(--muted);
}

.homework-optik-number {
    font-weight: 700;
    width: 40px;
    min-width: 40px;
    padding-left: 8px !important;
    padding-right: 8px !important;
}

.homework-optik-table th.homework-optik-outcome-head,
.homework-optik-table td.homework-optik-outcome {
    width: auto;
    min-width: 140px;
    max-width: 320px;
    text-align: left;
    padding: 6px 10px;
    font-size: 0.78rem;
    font-weight: 500;
    line-height: 1.35;
    color: var(--muted);
    white-space: normal;
    word-break: break-word;
}

.homework-optik-table th.homework-optik-outcome-head {
    color: var(--muted);
    font-weight: 600;
}

.homework-optik-table td.homework-optik-outcome {
    color: var(--text);
}

.homework-optik-bubble {
    width: 30px;
    height: 30px;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: var(--card);
    color: var(--text);
    font-size: 0.75rem;
    font-weight: 700;
    cursor: pointer;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
    transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.homework-optik-bubble:hover:not(:disabled) {
    border-color: var(--primary);
}

.homework-optik-bubble.is-selected {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
}

.homework-optik-bubble.is-selected.is-correct {
    background: #22c55e !important;
    border-color: #16a34a !important;
    color: #fff !important;
}

.homework-optik-bubble.is-selected.is-wrong {
    background: #ef4444 !important;
    border-color: #dc2626 !important;
    color: #fff !important;
}

.homework-optik-table tr.is-blank td {
    background: rgba(234, 179, 8, 0.12);
}

.homework-optik-table tr.is-blank .homework-optik-number {
    color: #eab308;
    font-weight: 800;
}

.homework-optik-table tr.is-blank .homework-optik-bubble:not(.is-selected) {
    background: rgba(234, 179, 8, 0.22);
    border-color: #ca8a04;
    color: #fde68a;
}

.homework-optik-table tr.is-correct td {
    background: rgba(34, 197, 94, 0.12);
}

.homework-optik-table tr.is-correct .homework-optik-number {
    color: #4ade80;
    font-weight: 800;
}

.homework-optik-table tr.is-wrong td {
    background: rgba(239, 68, 68, 0.12);
}

.homework-optik-table tr.is-wrong .homework-optik-number {
    color: #f87171;
    font-weight: 800;
}

.homework-optik-bubble:disabled {
    cursor: default;
    opacity: 0.85;
}

.homework-optik-table tr.homework-optik-row--clickable {
    cursor: pointer;
}

.homework-optik-table tr.homework-optik-row--clickable:hover td {
    filter: brightness(1.12);
}

.homework-optik-bubble.homework-optik-bubble--view {
    cursor: pointer;
}

.homework-optik-table tr.is-locked {
    opacity: 0.45;
}

.homework-optik-table tr.is-locked .homework-optik-number {
    color: var(--muted, #94a3b8);
}

.homework-optik-daily-stats {
    margin: 12px 16px 0;
    padding: 12px 14px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: color-mix(in srgb, var(--card) 92%, var(--primary) 8%);
}

.homework-optik-daily-stats-head {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    justify-content: space-between;
    gap: 6px 12px;
    margin-bottom: 10px;
}

.homework-optik-daily-stats-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 8px;
    margin: 0;
}

.homework-optik-daily-stats-grid > div {
    text-align: center;
    padding: 8px 4px;
    border-radius: 8px;
    background: var(--card);
}

.homework-optik-daily-stats-grid dt {
    margin: 0 0 4px;
    font-size: 0.75rem;
    color: var(--muted, #64748b);
}

.homework-optik-daily-stats-grid dd {
    margin: 0;
    font-size: 1.15rem;
    font-weight: 700;
}

#homeworkOptikStatCorrect {
    color: #16a34a;
}

#homeworkOptikStatWrong {
    color: #dc2626;
}

#homeworkOptikStatEmpty {
    color: #ca8a04;
}

.homework-optik-daily-stats-hint {
    margin: 10px 0 0;
}

@media (max-width: 640px) {
    .homework-optik-daily-stats-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

.homework-optik-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding: 0 16px;
}

.homework-optik-actions .btn[hidden] {
    display: none !important;
}

.homework-optik-readonly {
    padding: 0 16px;
    margin: 12px 0 0;
}

.school-exam-form {
    padding: 0 16px 16px;
}

.school-exam-form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

.school-exam-form-notes,
.school-exam-form-photo {
    grid-column: 1 / -1;
}

.school-exam-photo-hint {
    margin-top: 4px;
}

.school-exam-photo-preview {
    margin-top: 10px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.school-exam-photo-preview img {
    max-width: 220px;
    max-height: 160px;
    border-radius: 10px;
    border: 1px solid var(--border);
    object-fit: cover;
}

.school-exam-photo-thumb-link {
    display: inline-flex;
}

.school-exam-photo-thumb {
    width: 44px;
    height: 44px;
    border-radius: 8px;
    object-fit: cover;
    border: 1px solid var(--border);
}

.school-exam-form-grid label {
    display: flex;
    flex-direction: column;
    gap: 6px;
    font-size: 0.88rem;
    font-weight: 600;
}

.school-exam-form-grid select,
.school-exam-form-grid input {
    padding: 8px 10px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--card);
    color: var(--text);
    font-size: 0.92rem;
    font-weight: 400;
}

.school-exam-form-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 14px;
}

.school-exam-hint {
    padding: 0 16px 12px;
    margin: 0;
}

.accounting-page-hint {
    padding: 0 20px 8px;
    margin: 0;
}

.accounting-page-empty {
    padding: 8px 20px 24px;
}

.accounting-period-filter {
    display: flex;
    align-items: flex-end;
    gap: 8px;
    margin: 0;
}

.accounting-period-filter label {
    margin: 0;
    font-size: 0.82rem;
}

.accounting-period-filter input[type="month"] {
    margin-top: 4px;
    padding: 7px 10px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text);
    font: inherit;
}

.accounting-collections-filter {
    display: flex;
    align-items: flex-end;
    flex-wrap: wrap;
    gap: 10px;
    margin: 0;
    padding: 0 20px 16px;
    border-bottom: 1px solid var(--border);
}

.accounting-collections-filter label {
    margin: 0;
    font-size: 0.82rem;
    min-width: 140px;
}

.accounting-collections-filter input[type="month"],
.accounting-collections-filter select,
.accounting-collections-filter input[type="search"] {
    display: block;
    width: 100%;
    margin-top: 4px;
    padding: 7px 10px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text);
    font: inherit;
}

.accounting-collections-filter-search {
    flex: 1 1 220px;
    min-width: 200px;
}

.accounting-summary-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 10px;
    padding: 0 20px 12px;
}

.accounting-summary-card {
    padding: 12px 14px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.07);
}

.accounting-summary-label {
    display: block;
    margin-bottom: 6px;
    font-size: 0.76rem;
    color: var(--muted);
    font-weight: 600;
}

.accounting-summary-card strong {
    font-size: 1rem;
}

.accounting-form {
    padding: 0 20px 20px;
}

.accounting-form .form-row {
    margin-bottom: 12px;
}

.accounting-paid-cell {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    min-width: 160px;
}

.accounting-paid-amount {
    font-size: 0.88rem;
    font-weight: 600;
    white-space: nowrap;
}

#accountingPaymentModal .panel-form {
    padding-top: 4px;
}

#accountingPaymentModal .modal-actions {
    margin-top: 8px;
}

@media (max-width: 960px) {
    .accounting-summary-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

.homework-book-list-header-main {
    display: flex;
    flex-direction: row;
    align-items: center;
    flex-wrap: nowrap;
    gap: 10px;
    min-width: 0;
}

.homework-book-list-header-main h2 {
    flex: 0 0 auto;
    white-space: nowrap;
}

.homework-book-list-cleanup {
    margin: 0;
    flex: 0 0 auto;
}

.homework-book-list-grade-filter {
    display: inline-flex;
    align-items: center;
    flex: 0 0 auto;
    margin: 0;
}

.homework-book-list-grade-filter .homework-picker-filter {
    flex: 0 0 auto;
    min-width: 130px;
    width: auto;
}

.homework-book-list-hint {
    margin: 0 16px 12px;
}

.homework-book-list-item-top {
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.homework-book-list-item-top .school-exam-list-card-head {
    flex: 1 1 auto;
    min-width: 0;
}

.homework-book-drag-handle {
    flex: 0 0 auto;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    margin: 0;
    padding: 0;
    border: 1px solid rgba(148, 163, 184, 0.28);
    border-radius: 8px;
    background: rgba(15, 23, 42, 0.55);
    color: #94a3b8;
    font-size: 0.85rem;
    letter-spacing: -1px;
    line-height: 1;
    cursor: grab;
    user-select: none;
    touch-action: none;
}

.homework-book-drag-handle:active {
    cursor: grabbing;
}

.homework-book-drag-col {
    width: 40px;
}

.homework-book-drag-cell {
    width: 40px;
    vertical-align: middle;
}

.homework-book-list-item.is-dragging {
    opacity: 0.55;
}

.homework-book-list-item.is-drag-over {
    outline: 1px dashed rgba(56, 189, 248, 0.7);
    outline-offset: 2px;
}

.homework-book-list-card-wrap.is-saving-order {
    opacity: 0.92;
}

.homework-book-list-card-wrap.is-book-dragging {
    cursor: grabbing;
}

.school-exam-list-cards,
.curriculum-list-cards,
.homework-book-list-cards,
.homework-review-list-cards,
.practice-exam-list-cards,
.practice-exam-results-list-cards,
.online-lesson-list-cards,
.student-homework-list-cards,
.student-homework-results-list-cards,
.student-lesson-schedule-list-cards,
.student-weekly-lesson-cards,
.parent-homework-list-cards,
.parent-homework-results-list-cards,
.parent-schedule-list-cards,
.parent-account-children-list-cards,
.accounting-payments-list-cards,
.accounting-collections-list-cards {
    display: none;
}

.homework-stats-hub {
    display: flex;
    flex-direction: column;
    gap: 14px;
    min-width: 0;
    max-width: 100%;
}

.homework-stats-list-card-wrap {
    min-width: 0;
    max-width: 100%;
    overflow: hidden;
}

.homework-stats-filter {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-end;
    gap: 10px;
    padding: 12px 16px 0;
}

.homework-stats-filter label {
    margin: 0;
    min-width: 260px;
    flex: 1 1 260px;
}

.homework-stats-student-name {
    margin: 4px 0 0;
}

.homework-stats-header-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
}

.homework-stats-hint {
    margin: 0;
    padding: 10px 16px 16px;
}

.homework-stats-matrix-wrap {
    padding: 12px 16px 18px;
    max-width: 100%;
    min-width: 0;
    overflow-x: auto;
    overflow-y: hidden;
    overscroll-behavior-x: contain;
    scrollbar-width: auto;
    scrollbar-color: #6b7280 color-mix(in srgb, var(--border) 55%, transparent);
}

.homework-stats-matrix-wrap::-webkit-scrollbar {
    height: 12px;
}

.homework-stats-matrix-wrap::-webkit-scrollbar-track {
    background: color-mix(in srgb, var(--border) 55%, transparent);
    border-radius: 8px;
}

.homework-stats-matrix-wrap::-webkit-scrollbar-thumb {
    background: #6b7280;
    border-radius: 8px;
}

.homework-stats-matrix {
    --stats-outcome-w: 220px;
    --stats-metric-w: 42px;
    width: max-content;
    min-width: 100%;
    border-collapse: collapse;
    background: var(--bg);
}

.homework-stats-matrix th,
.homework-stats-matrix td {
    border: 1px solid var(--border);
    padding: 8px 10px;
    vertical-align: middle;
}

.homework-stats-matrix thead th {
    background: var(--surface);
    font-size: 0.8rem;
    font-weight: 700;
    text-align: center;
    color: var(--text);
}

.homework-stats-matrix-outcome {
    position: sticky;
    left: 0;
    z-index: 7;
    width: var(--stats-outcome-w);
    min-width: var(--stats-outcome-w);
    max-width: var(--stats-outcome-w);
    text-align: left !important;
    font-weight: 600;
    white-space: normal;
    word-break: break-word;
    background: var(--bg);
}

.homework-stats-matrix thead .homework-stats-matrix-outcome {
    z-index: 9;
    background: var(--surface);
}

.homework-stats-outcome-btn {
    display: block;
    width: 100%;
    margin: 0;
    padding: 4px 0;
    border: 0;
    background: transparent;
    color: var(--text);
    font: inherit;
    font-weight: 600;
    text-align: left;
    cursor: pointer;
    line-height: 1.35;
    text-decoration: none;
}

.homework-stats-outcome-btn:hover,
.homework-stats-outcome-btn:focus {
    color: var(--text);
    text-decoration: underline;
    outline: none;
}

.homework-stats-matrix-row {
    cursor: pointer;
}

.homework-stats-matrix-row.is-selected > td {
    background: color-mix(in srgb, var(--primary) 18%, var(--bg) 82%) !important;
}

.homework-stats-matrix-row.is-selected .homework-stats-outcome-btn {
    color: var(--primary);
    text-decoration: none;
}

.homework-stats-matrix-odev {
    min-width: 72px;
}

.homework-stats-matrix-odev.is-expanded {
    min-width: 168px;
}

.homework-stats-odev-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    margin: 0;
    padding: 4px 6px;
    border: 0;
    background: transparent;
    color: inherit;
    font: inherit;
    font-weight: 700;
    cursor: pointer;
    line-height: 1.3;
}

.homework-stats-odev-toggle:hover,
.homework-stats-odev-toggle:focus {
    color: var(--primary);
    outline: none;
    text-decoration: underline;
}

.homework-stats-matrix-odev.is-collapsed .homework-stats-odev-toggle {
    color: var(--muted, #94a3b8);
    font-weight: 600;
}

.homework-stats-hw-spacer {
    width: 28px;
    min-width: 28px;
    max-width: 36px;
    padding: 6px 4px !important;
    background: color-mix(in srgb, var(--surface) 70%, var(--bg) 30%);
}

.homework-stats-matrix-dybn {
    width: 42px;
    min-width: 42px;
    max-width: 48px;
    padding: 6px 4px !important;
}

.homework-stats-matrix-num {
    text-align: center;
    font-variant-numeric: tabular-nums;
    font-size: 0.9rem;
    white-space: nowrap;
}

.homework-stats-matrix-d {
    color: #4ade80;
}

.homework-stats-matrix-t {
    color: var(--text);
    font-weight: 700;
}

.homework-stats-matrix-y {
    color: #f87171;
}

.homework-stats-matrix-b {
    color: #fbbf24;
}

.homework-stats-matrix-n {
    color: var(--primary);
    font-weight: 700;
}

.homework-stats-matrix-total-head,
.homework-stats-matrix thead .homework-stats-matrix-total-t,
.homework-stats-matrix thead .homework-stats-matrix-total-d,
.homework-stats-matrix thead .homework-stats-matrix-total-y,
.homework-stats-matrix thead .homework-stats-matrix-total-b,
.homework-stats-matrix thead .homework-stats-matrix-total-n,
.homework-stats-matrix tbody .homework-stats-matrix-total-t,
.homework-stats-matrix tbody .homework-stats-matrix-total-d,
.homework-stats-matrix tbody .homework-stats-matrix-total-y,
.homework-stats-matrix tbody .homework-stats-matrix-total-b,
.homework-stats-matrix tbody .homework-stats-matrix-total-n {
    position: sticky;
    background: color-mix(in srgb, var(--primary) 14%, var(--surface) 86%);
}

.homework-stats-matrix-total-head {
    left: var(--stats-outcome-w);
    z-index: 8;
    min-width: 210px;
    box-shadow: none;
}

.homework-stats-matrix-total-t { left: var(--stats-outcome-w); z-index: 6; }
.homework-stats-matrix-total-d { left: calc(var(--stats-outcome-w) + var(--stats-metric-w)); z-index: 6; }
.homework-stats-matrix-total-y { left: calc(var(--stats-outcome-w) + (2 * var(--stats-metric-w))); z-index: 6; }
.homework-stats-matrix-total-b { left: calc(var(--stats-outcome-w) + (3 * var(--stats-metric-w))); z-index: 6; }
.homework-stats-matrix-total-n {
    left: calc(var(--stats-outcome-w) + (4 * var(--stats-metric-w)));
    z-index: 6;
    box-shadow: 6px 0 12px color-mix(in srgb, #000 16%, transparent);
    border-right: 2px solid var(--primary);
}

.homework-stats-matrix thead .homework-stats-matrix-total-t,
.homework-stats-matrix thead .homework-stats-matrix-total-d,
.homework-stats-matrix thead .homework-stats-matrix-total-y,
.homework-stats-matrix thead .homework-stats-matrix-total-b,
.homework-stats-matrix thead .homework-stats-matrix-total-n {
    z-index: 8;
}

.homework-stats-matrix tbody .homework-stats-matrix-total-t,
.homework-stats-matrix tbody .homework-stats-matrix-total-d,
.homework-stats-matrix tbody .homework-stats-matrix-total-y,
.homework-stats-matrix tbody .homework-stats-matrix-total-b,
.homework-stats-matrix tbody .homework-stats-matrix-total-n {
    background: color-mix(in srgb, var(--primary) 12%, var(--bg) 88%);
    font-weight: 700;
}

.homework-stats-matrix-row.is-selected > td.homework-stats-matrix-outcome,
.homework-stats-matrix-row.is-selected > td.homework-stats-matrix-total-t,
.homework-stats-matrix-row.is-selected > td.homework-stats-matrix-total-d,
.homework-stats-matrix-row.is-selected > td.homework-stats-matrix-total-y,
.homework-stats-matrix-row.is-selected > td.homework-stats-matrix-total-b,
.homework-stats-matrix-row.is-selected > td.homework-stats-matrix-total-n {
    background: color-mix(in srgb, var(--primary) 26%, var(--bg) 74%) !important;
}

.homework-stats-matrix [hidden] {
    display: none !important;
}

.homework-stats-charts {
    padding: 4px 16px 18px;
    border-top: 1px solid var(--border);
    margin-top: 8px;
}

.homework-stats-charts-toolbar {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-end;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 12px;
}

.homework-stats-charts-toolbar h3 {
    margin: 0;
    font-size: 1.02rem;
}

.homework-stats-charts-metric {
    margin: 0;
    min-width: 160px;
}

.homework-stats-charts-toolbar .form-hint {
    margin: 4px 0 0;
}

.homework-stats-chart-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

.homework-stats-chart-card {
    border: 1px solid var(--border);
    border-radius: 12px;
    background: color-mix(in srgb, var(--card) 92%, var(--bg) 8%);
    padding: 10px 12px 8px;
}

.homework-stats-chart-card--wide {
    grid-column: 1 / -1;
}

.homework-stats-chart-canvas-wrap {
    position: relative;
    height: 280px;
}

.homework-stats-chart-card--wide .homework-stats-chart-canvas-wrap {
    height: 300px;
}

.homework-stats-chart-empty {
    position: absolute;
    inset: 0;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0;
    padding: 16px;
    text-align: center;
    pointer-events: none;
    background: color-mix(in srgb, var(--card) 88%, transparent);
}

.homework-stats-chart-empty[hidden] {
    display: none !important;
}

.school-exam-list-card-actions,
.curriculum-list-card-actions {
    display: none;
}

@media (max-width: 640px) {
    .accounting-collections-filter {
        flex-direction: column;
        align-items: stretch;
    }

    .accounting-collections-filter label {
        width: 100%;
        min-width: 0;
    }

    .accounting-summary-grid {
        grid-template-columns: 1fr;
    }

    .accounting-period-filter {
        width: 100%;
        flex-direction: column;
        align-items: stretch;
        flex-wrap: wrap;
    }

    .accounting-period-filter label {
        width: 100%;
    }

    .accounting-period-filter .btn {
        width: 100%;
        justify-content: center;
    }

    .accounting-payments-card-wrap .card-header,
    .accounting-collections-card-wrap .card-header {
        flex-wrap: wrap;
        gap: 8px;
    }

    .accounting-payments-card-wrap .accounting-page-hint {
        padding: 0 12px 8px;
    }

    .accounting-summary-grid {
        padding: 0 12px 12px;
    }

    .accounting-collections-filter {
        padding: 0 12px 12px;
    }

    .accounting-collections-filter .btn {
        width: 100%;
        justify-content: center;
    }

    .accounting-payments-card-wrap .accounting-payments-table-wrap,
    .accounting-collections-card-wrap .accounting-collections-table-wrap {
        display: none;
    }

    .accounting-payments-list-cards,
    .accounting-collections-list-cards {
        display: flex;
        flex-direction: column;
        gap: 12px;
        padding: 0 12px 14px;
    }

    .accounting-collections-card-wrap .curriculum-list-card-row dd {
        word-break: break-word;
    }

    .school-exam-list-card-wrap .card-header {
        flex-wrap: wrap;
        gap: 8px;
    }

    .school-exam-list-card-wrap .school-exam-table-wrap {
        display: none;
    }

    .school-exam-list-cards {
        display: flex;
        flex-direction: column;
        gap: 12px;
        padding: 0 12px 14px;
    }

    .school-exam-list-card-actions {
        display: flex;
    }

    .school-exam-form-card .school-exam-form {
        padding: 0 12px 14px;
    }

    .school-exam-form-card .school-exam-form-actions {
        flex-direction: column;
    }

    .school-exam-form-card .school-exam-form-actions .btn {
        width: 100%;
        justify-content: center;
    }

    .school-exam-form-card .school-exam-photo-preview img {
        max-width: 100%;
    }

    .curriculum-list-card-wrap .card-header {
        flex-wrap: wrap;
        gap: 8px;
    }

    .curriculum-list-card-wrap .curriculum-list-table-wrap {
        display: none;
    }

    .curriculum-list-cards {
        display: flex;
        flex-direction: column;
        gap: 12px;
        padding: 0 12px 14px;
    }

    .curriculum-list-card-actions {
        display: flex;
    }

    .homework-book-list-card-wrap .card-header,
    .homework-review-list-card-wrap .card-header {
        flex-direction: row;
        flex-wrap: nowrap;
        align-items: center;
        gap: 8px;
    }

    .homework-book-list-card-wrap .homework-book-list-header-main {
        flex: 1 1 auto;
        min-width: 0;
    }

    .homework-book-list-card-wrap .homework-book-list-table-wrap,
    .homework-review-list-card-wrap .homework-review-list-table-wrap {
        display: none;
    }

    .homework-book-list-cards,
    .homework-review-list-cards {
        display: flex;
        flex-direction: column;
        gap: 12px;
        padding: 0 12px 14px;
    }

    .homework-stats-list-card-wrap .card-header {
        flex-wrap: wrap;
        gap: 8px;
    }

    .homework-stats-filter {
        padding: 12px 12px 0;
        flex-direction: column;
        align-items: stretch;
    }

    .homework-stats-filter label {
        width: 100%;
        min-width: 0;
    }

    .homework-stats-hint {
        padding: 8px 12px 14px;
    }

    .homework-stats-matrix-wrap {
        padding: 10px 12px 16px;
    }

    .homework-stats-matrix {
        --stats-outcome-w: 160px;
    }

    .homework-stats-matrix-outcome {
        font-size: 0.82rem;
    }

    .homework-stats-charts {
        padding: 4px 12px 16px;
    }

    .homework-stats-chart-grid {
        grid-template-columns: 1fr;
    }

    .homework-stats-chart-canvas-wrap,
    .homework-stats-chart-card--wide .homework-stats-chart-canvas-wrap {
        height: 260px;
    }

    .homework-review-list-card-wrap .curriculum-list-card-row dd {
        word-break: break-word;
    }

    .practice-exam-list-card-wrap .card-header,
    .practice-exam-results-list-card-wrap .card-header {
        flex-wrap: wrap;
        gap: 8px;
    }

    .practice-exam-list-card-wrap .practice-exam-list-table-wrap,
    .practice-exam-results-list-card-wrap .practice-exam-results-list-table-wrap {
        display: none;
    }

    .practice-exam-list-cards,
    .practice-exam-results-list-cards {
        display: flex;
        flex-direction: column;
        gap: 12px;
        padding: 0 12px 14px;
    }

    .practice-exam-results-list-card-wrap .curriculum-list-card-row dd {
        word-break: break-word;
    }

    .exam-results-filter {
        flex-direction: column;
        align-items: stretch;
        padding: 12px;
    }

    .exam-results-filter label {
        width: 100%;
        min-width: 0;
    }

    .exam-results-filter .btn {
        width: 100%;
        justify-content: center;
    }

    .online-lesson-list-card-wrap .card-header {
        flex-wrap: wrap;
        gap: 8px;
    }

    .online-lesson-list-card-wrap .online-lesson-list-table-wrap {
        display: none;
    }

    .online-lesson-list-cards {
        display: flex;
        flex-direction: column;
        gap: 12px;
        padding: 0 12px 14px;
    }

    .student-homework-list-card-wrap .card-header,
    .student-homework-results-list-card-wrap .card-header,
    .student-lesson-schedule-list-card-wrap .card-header {
        flex-wrap: wrap;
        gap: 8px;
    }

    .student-homework-list-card-wrap .table-actions {
        width: 100%;
        flex-wrap: wrap;
        gap: 8px;
    }

    .student-homework-list-card-wrap .table-actions .btn {
        flex: 1 1 auto;
        justify-content: center;
    }

    .student-homework-results-list-card-wrap .student-homework-results-hint {
        padding: 0 12px 10px;
        margin: 0;
    }

    .student-homework-list-card-wrap .student-homework-list-table-wrap,
    .student-homework-results-list-card-wrap .student-homework-results-list-table-wrap,
    .student-lesson-schedule-list-card-wrap .student-lesson-schedule-list-table-wrap,
    .student-dashboard-lessons .student-weekly-lesson-table-wrap {
        display: none;
    }

    .student-homework-list-cards,
    .student-homework-results-list-cards,
    .student-lesson-schedule-list-cards,
    .student-weekly-lesson-cards {
        display: flex;
        flex-direction: column;
        gap: 12px;
        padding: 0 12px 14px;
    }

    .student-homework-results-list-card-wrap .curriculum-list-card-row dd,
    .student-lesson-schedule-list-card-wrap .curriculum-list-card-row dd,
    .student-dashboard-lessons .curriculum-list-card-row dd {
        word-break: break-word;
    }

    .student-dashboard-card .student-dashboard-hint {
        padding: 0 12px 16px;
        margin: 0;
    }

    .parent-dashboard-card .parent-dashboard-hint {
        padding: 0 12px 16px;
        margin: 0;
    }

    .parent-lesson-info-card .info-list {
        padding: 0 12px;
    }

    .parent-lesson-info-card .parent-compare-table-wrap,
    .parent-fee-card-wrap .parent-fee-compare-table-wrap {
        display: none;
    }

    .parent-compare-mobile-cards {
        display: flex;
        flex-direction: column;
        gap: 12px;
        padding: 0 12px 14px;
    }

    .parent-homework-list-card-wrap .card-header,
    .parent-homework-results-list-card-wrap .card-header,
    .parent-fee-card-wrap .card-header {
        flex-wrap: wrap;
        gap: 8px;
    }

    .parent-homework-list-card-wrap .parent-homework-list-table-wrap,
    .parent-homework-results-list-card-wrap .parent-homework-results-list-table-wrap,
    .parent-lesson-panel .parent-schedule-table-wrap,
    .parent-fee-card-wrap .parent-fee-collections-table-wrap {
        display: none;
    }

    .parent-homework-list-cards,
    .parent-homework-results-list-cards,
    .parent-schedule-list-cards {
        display: flex;
        flex-direction: column;
        gap: 12px;
        padding: 0 12px 14px;
    }

    .parent-homework-results-list-card-wrap .curriculum-list-card-row dd,
    .parent-lesson-panel .curriculum-list-card-row dd,
    .parent-fee-card-wrap .curriculum-list-card-row dd {
        word-break: break-word;
    }

    .parent-lesson-panel h3 {
        margin: 0 12px 10px;
    }

    .parent-lesson-panel .curriculum-list-empty {
        margin: 0;
        padding: 0 12px 14px;
    }

    .parent-fee-card-wrap .accounting-summary-grid {
        padding: 0 12px 12px;
    }

    .parent-fee-card-wrap .accounting-page-hint {
        padding: 0 12px 10px;
        margin: 0;
    }

    .parent-fee-card-wrap .accounting-period-filter {
        width: 100%;
        flex-direction: column;
        align-items: stretch;
    }

    .parent-fee-card-wrap .accounting-period-filter label {
        width: 100%;
    }

    .parent-fee-card-wrap .accounting-period-filter .btn {
        width: 100%;
        justify-content: center;
    }

    .parent-fee-collections-title {
        margin: 0 12px 10px;
    }

    .parent-fee-card-wrap .accounting-collections-list-cards {
        display: flex;
        flex-direction: column;
        gap: 12px;
        padding: 0 12px 14px;
    }

    .parent-study-legend {
        padding: 0 12px 12px;
    }

    .parent-study-calendar-card .card-header h2 {
        font-size: 0.98rem;
    }

    .parent-account-info-list {
        padding: 0 12px 14px;
    }

    .parent-account-empty-hint {
        margin: 0;
        padding: 0 12px 16px;
    }

    .parent-account-children-card-wrap .card-header {
        flex-wrap: wrap;
        gap: 8px;
    }

    .parent-account-children-card-wrap .parent-account-children-table-wrap {
        display: none;
    }

    .parent-account-children-list-cards {
        display: flex;
        flex-direction: column;
        gap: 12px;
        padding: 0 12px 14px;
    }

    .parent-account-children-card-wrap .curriculum-list-card-row dd {
        word-break: break-word;
    }

    .lesson-program-picker-shell .lesson-program-mobile-trigger {
        display: flex;
        margin: 12px;
    }

    .lesson-program-picker-shell .lesson-program-row--desktop {
        display: none;
    }

    .lesson-program-picker-shell.is-open .sub-nav-mobile-backdrop:not([hidden]) {
        display: block;
    }

    .lesson-program-picker-shell.is-open .lesson-program-mobile-panel:not([hidden]) {
        display: flex;
    }
}

.credential-reset-form {
    margin-top: 6px;
}

.school-exam-row-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    align-items: center;
}

.school-exam-row--past td {
    opacity: 0.72;
}

.school-exam-list-empty {
    margin: 0;
    padding: 20px;
}

.school-exam-list-card {
    padding: 14px;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: rgba(15, 23, 42, 0.35);
}

.school-exam-list-card--past {
    opacity: 0.78;
}

.school-exam-list-card-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 10px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border);
}

.school-exam-list-card-title {
    margin: 0;
    font-size: 1rem;
    line-height: 1.35;
    word-break: break-word;
}

.school-exam-list-card-date {
    flex-shrink: 0;
    padding: 4px 8px;
    border-radius: 999px;
    background: rgba(99, 102, 241, 0.15);
    color: #c7d2fe;
    font-size: 0.72rem;
    font-weight: 700;
    white-space: nowrap;
}

.school-exam-list-card-badges {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px;
    margin-bottom: 10px;
}

.school-exam-list-card-pill {
    padding: 3px 8px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.06);
    color: var(--muted);
    font-size: 0.72rem;
    font-weight: 600;
}

.school-exam-list-card-meta {
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.school-exam-list-card-row {
    display: grid;
    grid-template-columns: 88px minmax(0, 1fr);
    gap: 8px 10px;
    align-items: start;
}

.school-exam-list-card-row dt {
    margin: 0;
    color: var(--muted);
    font-size: 0.76rem;
    font-weight: 600;
}

.school-exam-list-card-row dd {
    margin: 0;
    font-size: 0.86rem;
    line-height: 1.45;
    word-break: break-word;
}

.school-exam-list-card-photo {
    width: 100%;
    max-width: 220px;
    max-height: 160px;
    border-radius: 10px;
    object-fit: cover;
    border: 1px solid var(--border);
}

.school-exam-list-card-actions {
    flex-direction: column;
    gap: 8px;
    margin-top: 14px;
    padding-top: 12px;
    border-top: 1px solid var(--border);
}

.school-exam-list-card-form {
    display: block;
    width: 100%;
}

.curriculum-list-empty {
    margin: 0;
    padding: 20px;
}

.curriculum-list-card {
    padding: 14px;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: rgba(15, 23, 42, 0.35);
}

.curriculum-list-card-head {
    margin-bottom: 10px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border);
}

.curriculum-list-card-title {
    margin: 0;
    font-size: 1rem;
    line-height: 1.35;
    word-break: break-word;
}

.curriculum-list-card-badges {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px;
    margin-bottom: 10px;
}

.curriculum-list-card-pill {
    padding: 3px 8px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.06);
    color: var(--muted);
    font-size: 0.72rem;
    font-weight: 600;
}

.curriculum-list-card-pill--subject {
    background: rgba(99, 102, 241, 0.15);
    color: #c7d2fe;
}

.curriculum-list-card-meta {
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.curriculum-list-card-row {
    display: grid;
    grid-template-columns: 72px minmax(0, 1fr);
    gap: 8px 10px;
    align-items: center;
}

.curriculum-list-card-row dt {
    margin: 0;
    color: var(--muted);
    font-size: 0.76rem;
    font-weight: 600;
}

.curriculum-list-card-row dd {
    margin: 0;
    font-size: 0.86rem;
    line-height: 1.45;
}

.curriculum-list-card-actions {
    flex-direction: column;
    gap: 8px;
    margin-top: 14px;
    padding-top: 12px;
    border-top: 1px solid var(--border);
}

.curriculum-list-card-form {
    display: block;
    width: 100%;
}

.schedule-board--view {
    grid-template-columns: 1fr;
}

.lesson-program-list-card {
    margin-bottom: 16px;
    overflow: hidden;
}

.lesson-program-list-header {
    border-bottom: 1px solid var(--border);
}

.lesson-program-list-empty,
.lesson-program-list-hint {
    padding: 20px 16px;
    margin: 0;
}

.lesson-program-row {
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    align-items: stretch;
    gap: 8px;
    padding: 12px 16px;
    overflow-x: auto;
    border-bottom: 1px solid var(--border);
    scrollbar-width: thin;
}

.lesson-program-row-item {
    display: inline-flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 2px;
    flex: 0 0 auto;
    min-width: 140px;
    max-width: 240px;
    padding: 10px 16px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--card);
    color: var(--text);
    text-decoration: none;
    transition: border-color 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.lesson-program-row-item:hover {
    border-color: rgba(99, 102, 241, 0.45);
    background: rgba(99, 102, 241, 0.04);
}

.lesson-program-row-item.is-active {
    border-color: var(--primary);
    box-shadow: 0 0 0 1px rgba(99, 102, 241, 0.25);
    background: rgba(99, 102, 241, 0.1);
}

.lesson-program-row-item-name {
    font-size: 0.88rem;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
}

.lesson-program-row-item-date {
    font-size: 0.72rem;
    color: var(--muted);
    white-space: nowrap;
}

.lesson-program-picker-shell {
    border-bottom: 1px solid var(--border);
}

.lesson-program-mobile-trigger {
    display: none;
}

.lesson-program-mobile-option {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.lesson-program-mobile-option small {
    font-size: 0.72rem;
    color: var(--muted);
    font-weight: 500;
}

body.lesson-program-picker-open {
    overflow: hidden;
}

.lesson-program-detail {
    display: none;
}

.lesson-program-detail.is-open {
    display: block;
}

.lesson-program-detail-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 14px 16px;
    border-bottom: 1px solid var(--border);
}

.lesson-program-detail-info h3 {
    margin: 0 0 4px;
    font-size: 1rem;
}

.lesson-program-detail-info .form-hint {
    margin: 0;
}

.lesson-program-detail-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
}

.lesson-program-picker {
    margin-bottom: 16px;
}

.lesson-program-picker-empty {
    padding: 16px;
    margin: 0;
}

.lesson-program-picker-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    padding: 0 16px 16px;
}

.lesson-program-card {
    display: flex;
    flex-direction: column;
    gap: 4px;
    min-width: 180px;
    padding: 12px 14px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--card);
    color: var(--text);
    text-decoration: none;
    transition: border-color 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.lesson-program-card:hover {
    border-color: rgba(99, 102, 241, 0.45);
}

.lesson-program-card.is-active {
    border-color: var(--primary);
    box-shadow: 0 0 0 1px rgba(99, 102, 241, 0.25);
    background: rgba(99, 102, 241, 0.08);
}

.lesson-program-card-meta {
    font-size: 0.78rem;
    color: var(--muted);
}

.lesson-program-active-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 16px;
    margin-bottom: 16px;
}

.lesson-program-active-bar--compact {
    margin-bottom: 0;
    border-bottom: 1px solid var(--border);
}

.lesson-program-active-info h2 {
    margin: 0 0 4px;
    font-size: 1.05rem;
}

.lesson-program-active-info .form-hint {
    margin: 0;
}

.lesson-program-active-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
}

.weekly-calendar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.weekly-calendar-header h2 {
    margin: 0;
}

.lesson-program-card-thumb {
    display: block;
    width: 100%;
    aspect-ratio: 16 / 10;
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--border);
    margin-bottom: 8px;
    background: #fff;
}

.lesson-program-card-thumb img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top left;
}

.lesson-program-preview-card {
    margin-bottom: 16px;
}

.lesson-program-preview-wrap {
    padding: 16px;
    overflow-x: auto;
}

.lesson-program-preview-image {
    display: block;
    max-width: 100%;
    height: auto;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: #fff;
}

.schedule-event--readonly {
    cursor: default;
}

.weekly-calendar-wrap--readonly .cal-slot {
    cursor: default;
}

.lesson-done-card-wrap {
    margin-bottom: 16px;
}

.lesson-done-header {
    align-items: flex-start;
}

.lesson-done-subtitle {
    margin: 4px 0 0;
}

.lesson-done-empty {
    padding: 20px 16px;
    margin: 0;
}

.lesson-done-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 16px;
}

.lesson-done-item {
    display: grid;
    grid-template-columns: 36px minmax(0, 1fr) auto auto;
    align-items: center;
    gap: 12px;
    width: 100%;
    padding: 14px 16px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--card);
    color: var(--text);
    text-align: left;
    cursor: pointer;
    transition: border-color 0.15s ease, background 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease;
}

.lesson-done-item:hover {
    border-color: rgba(99, 102, 241, 0.45);
    transform: translateY(-1px);
}

.lesson-done-item.is-completed {
    border-color: rgba(34, 197, 94, 0.55);
    background: rgba(34, 197, 94, 0.08);
    box-shadow: 0 0 0 1px rgba(34, 197, 94, 0.15);
}

.lesson-done-item:disabled {
    opacity: 0.7;
    cursor: wait;
}

.lesson-done-item-order {
    display: grid;
    place-items: center;
    width: 32px;
    height: 32px;
    border-radius: 999px;
    background: rgba(99, 102, 241, 0.15);
    color: var(--primary);
    font-size: 0.82rem;
    font-weight: 700;
}

.lesson-done-item.is-completed .lesson-done-item-order {
    background: rgba(34, 197, 94, 0.18);
    color: #22c55e;
}

.lesson-done-item-main {
    display: flex;
    flex-direction: column;
    gap: 3px;
    min-width: 0;
}

.lesson-done-item-student {
    font-size: 0.95rem;
}

.lesson-done-item-subject {
    font-size: 0.82rem;
    color: var(--muted);
}

.lesson-done-item-program {
    font-size: 0.72rem;
    color: var(--muted);
}

.lesson-done-item-time {
    font-size: 0.88rem;
    font-weight: 600;
    font-variant-numeric: tabular-nums;
    white-space: nowrap;
}

.lesson-done-item-status {
    display: flex;
    align-items: center;
    gap: 6px;
    min-width: 110px;
    justify-content: flex-end;
}

.lesson-done-check {
    display: inline-grid;
    place-items: center;
    width: 22px;
    height: 22px;
    border-radius: 999px;
    background: #22c55e;
    color: #fff;
    font-size: 0.82rem;
    font-weight: 700;
}

.lesson-done-status-text {
    font-size: 0.78rem;
    color: var(--muted);
    white-space: nowrap;
}

.lesson-done-item.is-completed .lesson-done-status-text {
    color: #86efac;
}

@media (max-width: 900px) {
    .school-exam-form-grid {
        grid-template-columns: 1fr;
    }

    .homework-submit-layout {
        grid-template-columns: 1fr;
    }

    .lesson-program-detail-bar {
        flex-direction: column;
        align-items: flex-start;
    }

    .lesson-done-item {
        grid-template-columns: 32px minmax(0, 1fr);
        grid-template-areas:
            "order main"
            "order time"
            "order status";
    }

    .lesson-done-item-order { grid-area: order; }
    .lesson-done-item-main { grid-area: main; }
    .lesson-done-item-time {
        grid-area: time;
        justify-self: start;
    }
    .lesson-done-item-status {
        grid-area: status;
        justify-self: start;
        min-width: 0;
    }

    .messages-layout {
        grid-template-columns: 1fr;
        min-height: auto;
    }

    .messages-sidebar {
        border-right: none;
        border-bottom: 1px solid var(--border);
        max-height: 280px;
    }

    .messages-thread-body {
        max-height: 420px;
    }

    .lesson-program-active-bar {
        flex-direction: column;
        align-items: flex-start;
    }

    /* Panel: drawer sidebar */
    .panel-menu-btn {
        display: inline-flex;
    }

    .app-shell {
        flex-direction: row;
        min-height: 100dvh;
    }

    .sidebar {
        position: fixed;
        top: 0;
        left: 0;
        bottom: 0;
        z-index: 200;
        width: min(292px, 88vw);
        min-height: 100dvh;
        max-height: 100dvh;
        padding-top: max(20px, env(safe-area-inset-top));
        padding-bottom: max(20px, env(safe-area-inset-bottom));
        transform: translateX(-105%);
        transition: transform 0.24s ease;
        overflow-y: auto;
        overscroll-behavior: contain;
        box-shadow: 12px 0 40px rgba(0, 0, 0, 0.35);
    }

    .sidebar.is-open {
        transform: translateX(0);
    }

    .main-area {
        width: 100%;
        min-width: 0;
    }

    .topbar {
        flex-wrap: wrap;
        align-items: center;
        gap: 12px;
        padding: 14px 16px;
        padding-top: max(14px, env(safe-area-inset-top));
    }

    .topbar-leading {
        flex: 1 1 100%;
        max-width: 100%;
    }

    .topbar-leading h1 {
        font-size: 1.2rem;
        white-space: normal;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    .topbar-actions {
        flex: 1 1 100%;
        flex-wrap: wrap;
        justify-content: flex-start;
        gap: 6px;
    }

    .topbar-action {
        min-height: 40px;
        padding: 8px 12px;
        font-size: 0.82rem;
    }

    .content {
        padding: 16px;
        padding-bottom: max(20px, env(safe-area-inset-bottom));
    }

    .stats-grid,
    .stats-grid--compact,
    .grid-2,
    .parent-lesson-dual-grid,
    .accounting-summary-grid,
    .book-detail-stats,
    .student-new-form-grid {
        grid-template-columns: 1fr;
    }

    .admin-dashboard-layout {
        grid-template-columns: 1fr;
    }

    .student-dashboard-layout {
        grid-template-columns: 1fr;
    }

    .student-dashboard-homework {
        position: static;
        max-height: none;
    }

    .admin-dashboard-schedule {
        position: static;
        max-height: none;
    }

    .card-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }

    .card-header .inline-form,
    .card-header .accounting-period-filter {
        width: 100%;
    }

    .form-row,
    .homework-form-row,
    .accounting-form .form-row,
    .schedule-modal-card .form-row {
        grid-template-columns: 1fr;
    }

    .info-list div {
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
    }

    .book-detail-toolbar,
    .book-detail-actions,
    .exam-action-grid {
        flex-direction: column;
        align-items: stretch;
    }

    .book-detail-actions .btn,
    .book-detail-toolbar .btn {
        width: 100%;
        justify-content: center;
    }

    .answer-key-grid,
    .book-detail-question-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .exam-maker-workspace,
    .pdf-canvas-wrap {
        min-height: 320px;
    }

    .parent-sidebar-hours-card {
        margin-top: 16px;
    }
}

@media (max-width: 1024px) and (min-width: 901px) {
    .content {
        padding: 20px 24px 32px;
    }

    .topbar {
        padding: 18px 24px;
    }

    .stats-grid--compact {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

@media (max-width: 640px) {
    .auth-body--home {
        height: auto;
        max-height: none;
        min-height: 100dvh;
        overflow: auto;
    }

    .auth-body--home .auth-page--home {
        overflow: visible;
    }

    .auth-body--home .auth-hero {
        overflow: visible;
    }

    .topbar-leading h1 {
        font-size: 1.05rem;
    }

    .topbar-actions:not(.topbar-actions--icon-mobile) {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .topbar-actions:not(.topbar-actions--icon-mobile) .topbar-action {
        justify-content: center;
        text-align: center;
    }

    .topbar-actions:not(.topbar-actions--icon-mobile) .topbar-action--logout {
        grid-column: 1 / -1;
    }

    /* Admin panel: icon buttons on phone only */
    .topbar:has(.topbar-actions--icon-mobile) {
        flex-wrap: nowrap;
        align-items: center;
        gap: 10px;
    }

    .topbar:has(.topbar-actions--icon-mobile) .topbar-leading {
        flex: 1 1 auto;
        max-width: none;
        min-width: 0;
    }

    .topbar:has(.topbar-actions--icon-mobile) .topbar-leading h1 {
        font-size: 1rem;
        -webkit-line-clamp: 1;
    }

    .topbar-actions--icon-mobile {
        display: flex;
        flex: 0 0 auto;
        flex-wrap: nowrap;
        justify-content: flex-end;
        align-items: center;
        gap: 8px;
        margin-left: auto;
    }

    .topbar-actions--icon-mobile .topbar-action--icon {
        position: relative;
        width: 42px;
        height: 42px;
        min-height: 42px;
        padding: 0;
        justify-content: center;
        border-radius: 12px;
    }

    .topbar-actions--icon-mobile .topbar-action--icon .topbar-action-icon {
        display: block;
    }

    .topbar-actions--icon-mobile .topbar-action--icon .topbar-action-text {
        position: absolute;
        width: 1px;
        height: 1px;
        padding: 0;
        margin: -1px;
        overflow: hidden;
        clip: rect(0, 0, 0, 0);
        white-space: nowrap;
        border: 0;
    }

    .topbar-actions--icon-mobile .topbar-action--icon .topbar-action-badge {
        position: absolute;
        top: -3px;
        right: -3px;
        margin-left: 0;
        min-width: 16px;
        height: 16px;
        padding: 0 4px;
        font-size: 0.62rem;
        box-shadow: 0 0 0 2px var(--surface);
    }

    .topbar-actions--icon-mobile .topbar-action--logout {
        width: auto;
        min-height: 36px;
        padding: 8px 10px;
        font-size: 0.78rem;
        white-space: nowrap;
    }

    .btn,
    .btn-sm,
    button,
    input,
    select,
    textarea {
        font-size: max(16px, 1em);
    }

    .btn-sm {
        min-height: 38px;
    }

    .table-compact th,
    .table-compact td {
        padding: 10px 8px;
        font-size: 0.82rem;
    }

    .answer-key-grid,
    .book-detail-question-grid {
        grid-template-columns: 1fr;
    }

    .book-detail-tab-head {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        flex-wrap: nowrap;
    }

    .book-detail-tab {
        flex: 0 0 auto;
        white-space: nowrap;
    }

    .schedule-modal-card {
        width: min(100%, calc(100vw - 24px));
        max-height: calc(100dvh - 24px);
        overflow-y: auto;
    }

    .site-navbar-inner {
        padding: 10px 16px;
    }
}

@media (max-width: 1100px) {
    .homework-review-stats {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

@media (max-width: 960px) {
    .homework-review-stats {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .homework-review-toolbar-filters {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 560px) {
    .stats-grid--compact .stat-card-metrics {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    .stat-card--compact .stat-value {
        font-size: 1.3rem;
    }

    .homework-review-stats {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .homework-review-grid {
        grid-template-columns: 1fr;
        padding: 0 12px 14px;
    }

    .homework-review-card-top {
        grid-template-columns: auto 1fr;
    }

    .homework-review-card-due {
        grid-column: 1 / -1;
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
        width: 100%;
    }

    .homework-review-toolbar-actions .btn {
        width: 100%;
        justify-content: center;
    }

    .parent-lesson-compare-table th:not(:first-child),
    .parent-lesson-compare-table td:not(:first-child),
    .parent-fee-compare-table th:not(:first-child),
    .parent-fee-compare-table td:not(:first-child) {
        width: auto;
    }
}

/* Database export admin */
.db-export-card {
    max-width: 760px;
}

.db-export-summary {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
    margin-bottom: 18px;
}

.db-export-summary-item {
    display: grid;
    gap: 6px;
    padding: 16px;
    border-radius: 14px;
    background: rgba(15, 23, 42, 0.35);
    border: 1px solid rgba(148, 163, 184, 0.18);
}

.db-export-summary-label {
    color: var(--muted);
    font-size: 0.82rem;
}

.db-export-hint {
    margin: 0 0 18px;
}

.db-export-steps {
    margin: 0 0 20px;
    padding-left: 1.2rem;
    color: #d1d5db;
    line-height: 1.65;
}

.db-export-steps li + li {
    margin-top: 8px;
}

.db-export-steps code {
    font-size: 0.92em;
}

.db-export-pending-list {
    margin: 0 0 18px;
    padding-left: 1.2rem;
    color: #d1d5db;
    line-height: 1.6;
}

.db-export-pending-list li + li {
    margin-top: 6px;
}

.db-export-form {
    margin: 0;
}

@media (max-width: 640px) {
    .db-export-summary {
        grid-template-columns: 1fr;
    }
}

/* Super admin panel */
.super-admin-stats-grid,
.super-admin-detail-stats {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
    padding: 0 16px 16px;
}

.super-admin-layout {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.super-admin-card .card-header {
    padding: 16px;
}

.super-admin-form {
    padding: 0 16px 16px;
}

/* Yeni öğretmen formu */
.super-admin-add-teacher-card {
    overflow: hidden;
}

.super-admin-add-teacher-header {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 20px 20px 0;
}

.super-admin-add-teacher-header-icon {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    border-radius: 14px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.22), rgba(139, 92, 246, 0.14));
    color: #a5b4fc;
    border: 1px solid rgba(99, 102, 241, 0.28);
}

.super-admin-add-teacher-header-text h2 {
    margin: 0 0 6px;
    font-size: 1.15rem;
}

.super-admin-add-teacher-header-text p {
    margin: 0;
    font-size: 0.86rem;
    line-height: 1.5;
    color: var(--muted);
    max-width: 52ch;
}

.super-admin-add-teacher-form.panel-form {
    padding: 20px;
}

.super-admin-add-teacher-form.panel-form label {
    margin-bottom: 0;
    font-size: 0.84rem;
    font-weight: 600;
    color: var(--text);
}

.super-admin-add-teacher-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px 16px;
}

.super-admin-field {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.super-admin-field-required {
    color: #f87171;
    font-weight: 700;
}

.super-admin-field-input-wrap {
    position: relative;
}

.super-admin-field-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--muted);
    pointer-events: none;
    display: flex;
}

.super-admin-field-input-wrap input {
    width: 100%;
    margin-top: 0;
    padding: 11px 12px 11px 42px;
    border-radius: 12px;
    border: 1px solid var(--border);
    background: #0b1220;
    color: var(--text);
    font-family: inherit;
    font-size: 0.92rem;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.super-admin-field-input-wrap input:focus {
    outline: none;
    border-color: rgba(99, 102, 241, 0.65);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.super-admin-field-input-wrap select {
    width: 100%;
    margin-top: 0;
    padding: 11px 36px 11px 42px;
    border-radius: 12px;
    border: 1px solid var(--border);
    background: #0b1220;
    color: var(--text);
    font-family: inherit;
    font-size: 0.92rem;
    appearance: none;
    cursor: pointer;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.super-admin-field-input-wrap--select::after {
    content: "";
    position: absolute;
    right: 14px;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 0;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 6px solid var(--muted);
    pointer-events: none;
}

.super-admin-field-input-wrap select:focus {
    outline: none;
    border-color: rgba(99, 102, 241, 0.65);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.super-admin-field--full {
    grid-column: 1 / -1;
}

.super-admin-field-textarea {
    width: 100%;
    min-height: 92px;
    padding: 12px 14px;
    border-radius: 12px;
    border: 1px solid var(--border);
    background: #0b1220;
    color: var(--text);
    font-family: inherit;
    font-size: 0.92rem;
    resize: vertical;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.super-admin-field-textarea:focus {
    outline: none;
    border-color: rgba(99, 102, 241, 0.65);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.super-admin-teacher-profile-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
    padding: 0 16px 16px;
}

.super-admin-teacher-profile-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 12px 14px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: rgba(15, 23, 42, 0.45);
}

.super-admin-teacher-profile-item--full {
    grid-column: 1 / -1;
}

.super-admin-teacher-profile-label {
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    color: var(--muted);
}

.super-admin-teacher-edit-form .super-admin-field--full {
    grid-column: 1 / -1;
}

.super-admin-teacher-edit-form textarea {
    width: 100%;
    min-height: 84px;
    resize: vertical;
}

.super-admin-field-input-wrap input::placeholder {
    color: rgba(148, 163, 184, 0.55);
}

.super-admin-field-input-wrap--password input {
    padding-right: 76px;
}

.super-admin-password-tools {
    position: absolute;
    right: 6px;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    gap: 2px;
}

.super-admin-password-tool {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border: none;
    border-radius: 8px;
    background: transparent;
    color: var(--muted);
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease;
}

.super-admin-password-tool:hover {
    background: rgba(99, 102, 241, 0.12);
    color: #c7d2fe;
}

.super-admin-field-hint {
    font-size: 0.78rem;
    line-height: 1.4;
    color: var(--muted);
}

.super-admin-field-hint.is-success {
    color: #86efac;
}

.super-admin-add-teacher-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 22px;
    padding-top: 18px;
    border-top: 1px solid var(--border);
}

.super-admin-add-teacher-submit {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-width: 160px;
    justify-content: center;
    padding: 11px 18px;
    border-radius: 12px;
    font-weight: 600;
}

.super-admin-add-teacher-submit.is-loading {
    opacity: 0.75;
    pointer-events: none;
}

.super-admin-form-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.super-admin-table-wrap {
    padding: 0 16px 16px;
    overflow-x: auto;
}

.super-admin-table {
    min-width: 880px;
}

.super-admin-teacher-cards {
    display: none;
}

.super-admin-teacher-card {
    padding: 14px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--bg);
}

.super-admin-teacher-card-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    margin-bottom: 6px;
}

.super-admin-teacher-card-meta {
    margin: 0 0 4px;
    font-size: 0.84rem;
    color: var(--muted);
}

.super-admin-teacher-card-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 10px;
}

.super-admin-filter-header {
    flex-wrap: wrap;
    gap: 10px;
}

.super-admin-filter-form {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
}

.super-admin-filter-form--stack {
    flex-direction: column;
    align-items: stretch;
    padding: 0 16px 12px;
}

.super-admin-filter-select,
.super-admin-filter-input {
    min-width: 160px;
    padding: 8px 10px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--card);
    color: var(--text);
}

.super-admin-fee-cards {
    display: none;
}

.super-admin-fee-card {
    padding: 14px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--bg);
}

.super-admin-fee-card-teacher {
    font-size: 0.78rem;
    color: var(--muted);
}

.super-admin-fee-card-meta {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
    margin: 10px 0 0;
    font-size: 0.82rem;
}

.super-admin-fee-card-meta div {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.super-admin-fee-card-meta dt {
    color: var(--muted);
    font-size: 0.72rem;
}

.super-admin-messages-layout {
    display: grid;
    grid-template-columns: minmax(280px, 340px) minmax(0, 1fr);
    gap: 16px;
    align-items: start;
}

.super-admin-messages-sidebar {
    display: flex;
    flex-direction: column;
    max-height: calc(100vh - 120px);
}

.super-admin-message-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 0 16px 16px;
    overflow-y: auto;
}

.super-admin-message-list--sidebar {
    flex: 1;
    min-height: 0;
}

.super-admin-message-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--bg);
    color: inherit;
    text-decoration: none;
}

.super-admin-message-item:hover,
.super-admin-message-item.is-active {
    border-color: rgba(59, 130, 246, 0.45);
    background: rgba(59, 130, 246, 0.05);
}

.super-admin-message-type {
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--muted);
}

.super-admin-message-preview,
.super-admin-message-date,
.super-admin-message-teacher {
    font-size: 0.78rem;
    color: var(--muted);
}

.super-admin-messages-thread {
    min-height: 420px;
    display: flex;
    flex-direction: column;
}

.super-admin-messages-placeholder {
    padding: 24px 16px;
}

.super-admin-thread-messages {
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 0 16px 16px;
    overflow-y: auto;
    flex: 1;
}

.super-admin-thread-message {
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--bg);
}

.super-admin-thread-message-head {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
    margin-bottom: 6px;
    font-size: 0.78rem;
}

.super-admin-thread-message-head time {
    margin-left: auto;
    color: var(--muted);
}

.super-admin-detail-layout {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

@media (max-width: 1100px) {
    .super-admin-stats-grid,
    .super-admin-detail-stats {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .super-admin-messages-layout {
        grid-template-columns: 1fr;
    }

    .super-admin-messages-sidebar {
        max-height: none;
    }
}

@media (max-width: 768px) {
    .super-admin-add-teacher-header {
        flex-direction: column;
        padding: 16px 16px 0;
    }

    .super-admin-add-teacher-form.panel-form {
        padding: 16px;
    }

    .super-admin-add-teacher-grid {
        grid-template-columns: 1fr;
    }

    .super-admin-add-teacher-actions {
        flex-direction: column-reverse;
        align-items: stretch;
    }

    .super-admin-add-teacher-submit {
        width: 100%;
    }

    .super-admin-teacher-profile-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .super-admin-form-row {
        grid-template-columns: 1fr;
    }

    .super-admin-table-wrap {
        display: none;
    }

    .super-admin-teacher-cards,
    .super-admin-fee-cards {
        display: flex;
        flex-direction: column;
        gap: 12px;
        padding: 0 16px 16px;
    }

    .super-admin-filter-form {
        width: 100%;
    }

    .super-admin-filter-select,
    .super-admin-filter-input {
        width: 100%;
        min-width: 0;
    }
}

@media (max-width: 640px) {
    .super-admin-stats-grid,
    .super-admin-detail-stats {
        grid-template-columns: 1fr;
    }

    .super-admin-teacher-profile-grid {
        grid-template-columns: 1fr;
    }
}

/* Öğrenci kullanım kılavuzu */
.student-guide {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.student-guide-hero-header h2 {
    margin: 0 0 6px;
}

.student-guide-principles {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 10px;
    padding: 0 16px 16px;
}

.student-guide-principle {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: color-mix(in srgb, var(--card) 88%, var(--primary) 12%);
}

.student-guide-principle strong {
    font-size: 0.92rem;
}

.student-guide-principle span {
    font-size: 0.82rem;
    color: var(--muted);
    line-height: 1.4;
}

.student-guide-toc-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px 16px;
    margin: 0;
    padding: 0 16px 16px;
    list-style: none;
}

.student-guide-toc-list a {
    color: var(--text);
    text-decoration: none;
    font-size: 0.92rem;
}

.student-guide-toc-list a:hover {
    color: var(--primary);
    text-decoration: underline;
}

.student-guide-section .card-header {
    align-items: center;
}

.student-guide-list {
    margin: 0;
    padding: 0 16px 16px 34px;
    color: var(--text);
    line-height: 1.55;
}

.student-guide-list li + li {
    margin-top: 6px;
}

.student-guide-list--tips {
    padding-bottom: 18px;
}

.student-guide-steps {
    display: flex;
    flex-direction: column;
    gap: 14px;
    padding: 0 16px 16px;
}

.student-guide-step {
    padding: 12px 14px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--card);
}

.student-guide-step h3 {
    margin: 0 0 6px;
    font-size: 1rem;
}

.student-guide-step p {
    margin: 0 0 8px;
    color: var(--text);
    line-height: 1.5;
}

.student-guide-step .student-guide-list {
    padding: 0 0 8px 18px;
}

.student-guide-step--warn {
    border-color: color-mix(in srgb, var(--error, #ef4444) 35%, var(--border));
    background: color-mix(in srgb, var(--card) 90%, var(--error, #ef4444) 10%);
}

@media (max-width: 960px) {
    .student-guide-principles {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 640px) {
    .student-guide-principles,
    .student-guide-toc-list {
        grid-template-columns: 1fr;
    }
}