:root {
    color-scheme: light;
    --bg: #f6f7fb;
    --surface: #ffffff;
    --surface-muted: #eef2f7;
    --text: #172033;
    --muted: #667085;
    --line: #d9e1ec;
    --primary: #1668dc;
    --primary-dark: #0f4ca5;
    --success: #147d64;
    --danger: #b42318;
}

/* Stage 13 strict parity overrides (font, scale, modal, auth alignment). */
body {
    font-family: "Nunito", "Manrope", "Segoe UI", ui-sans-serif, system-ui, sans-serif;
    font-weight: 500;
    line-height: 1.45;
}

.app-shell {
    border-radius: 26px;
    backdrop-filter: none;
    box-shadow: 0 16px 40px rgba(15, 23, 42, 0.08);
}

.topbar,
.student-header {
    backdrop-filter: none;
}

.brand-mark {
    border-radius: 12px;
    box-shadow: none;
}

.brand-mark .lucide-icon {
    width: 20px;
    height: 20px;
}

.page-title,
.hero h1 {
    font-family: "Manrope", "Nunito", "Segoe UI", ui-sans-serif, system-ui, sans-serif;
    font-size: clamp(1.35rem, 2vw, 1.8rem);
    line-height: 1.18;
    font-weight: 700;
}

.section-title,
h2 {
    font-family: "Manrope", "Nunito", "Segoe UI", ui-sans-serif, system-ui, sans-serif;
    font-size: 1rem;
    font-weight: 700;
    line-height: 1.28;
}

.lede {
    font-size: 0.95rem;
    line-height: 1.55;
}

.panel,
.feature-card,
.warm-card,
.program-band,
.faq-card,
.student-route-card,
.child-card,
.metric {
    border-radius: 14px;
    box-shadow: none;
}

.metric,
.stat,
.warm-card,
.program-band,
.student-hero-panel,
.analytics-hero,
.result-summary {
    background: #fff;
}

.button {
    border-radius: 10px;
    font-size: 0.875rem;
    font-weight: 700;
    box-shadow: none;
    transform: none;
}

.button:hover {
    transform: none;
}

.type-tabs {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 6px;
    border-radius: 10px;
    padding: 4px;
}

.type-tab,
.type-tabs a.type-tab {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 38px;
    border-radius: 8px;
    font-size: 0.86rem;
    line-height: 1;
}

.auth-grid > section > .page-title {
    font-size: clamp(1.25rem, 1.9vw, 1.55rem);
}

.auth-panel {
    border-radius: 14px;
    box-shadow: none;
}

.auth-panel .section-title {
    margin: 8px 0 10px;
}

.auth-panel .form {
    gap: 12px;
}

.auth-register-grid {
    align-items: start;
}

.student-profile-page .page-title {
    font-size: clamp(1.3rem, 2.1vw, 1.65rem);
    font-weight: 700;
}

.student-profile-page .field label,
.student-profile-page .profile-summary dt,
.student-profile-page .profile-summary dd {
    font-family: "Nunito", "Manrope", "Segoe UI", ui-sans-serif, system-ui, sans-serif;
}

.student-home-hero h1,
.tests-hero h1 {
    font-size: clamp(1.2rem, 1.8vw, 1.55rem);
}

.modal-layer {
    position: fixed;
    inset: 0;
    z-index: 120;
    display: grid;
    place-items: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.18s ease, visibility 0.18s ease;
}

.modal-layer.is-open {
    opacity: 1;
    visibility: visible;
}

.modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(15, 23, 42, 0.55);
}

.modal-card {
    width: min(680px, calc(100% - 24px));
    max-height: calc(100vh - 30px);
    margin: 0;
    border-radius: 14px;
    padding: 18px;
    transform: translateY(8px);
}

.modal-layer.is-open .modal-card {
    transform: translateY(0);
}

.session-page {
    display: grid;
    gap: 14px;
}

.session-top,
.session-nav-box {
    background: #fff;
}

.session-nav-box .notice {
    margin-top: 12px;
}

.session-form {
    display: grid;
    gap: 12px;
}

.session-page .question-panel[hidden] {
    display: none !important;
}

.session-actions .actions {
    align-items: center;
    gap: 8px;
}

#questionNav a.active {
    border-color: #c7d2fe;
    background: #eef2ff;
    color: #3730a3;
}

#questionNav a.answered {
    border-color: #abefc6;
    background: #ecfdf3;
    color: #147d64;
}

@media (max-width: 760px) {
    .app-shell {
        border-radius: 0;
    }

    .modal-card {
        width: calc(100% - 14px);
        border-radius: 12px;
        padding: 14px;
    }

    .session-actions .actions {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 8px;
    }

    .type-tabs {
        grid-template-columns: 1fr 1fr;
    }
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    background: var(--bg);
    color: var(--text);
    font-family: "Manrope", "Nunito", "Nunito Sans", "Aptos", "Segoe UI", ui-sans-serif, system-ui, sans-serif;
}

a {
    color: var(--primary);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

.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;
}

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

.topbar {
    height: 64px;
    border-bottom: 1px solid var(--line);
    background: var(--surface);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
}

.brand {
    font-weight: 750;
    color: var(--text);
}

.nav {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 14px;
}

.nav-logout {
    margin: 0;
}

.language-form {
    margin: 0;
}

.language-select {
    min-height: 32px;
    border: 1px solid var(--line);
    border-radius: 6px;
    background: var(--surface);
    color: var(--text);
    font: inherit;
    font-weight: 700;
}

.language-links {
    display: inline-flex;
    gap: 10px;
}

.link-button {
    display: inline-flex;
    align-items: center;
    min-height: 38px;
    padding: 0;
    border: 0;
    background: transparent;
    color: var(--primary);
    font: inherit;
    cursor: pointer;
}

.link-button:hover {
    text-decoration: underline;
}

.page {
    width: min(1120px, calc(100% - 32px));
    margin: 32px auto;
}

.admin-layout {
    display: grid;
    grid-template-columns: 240px minmax(0, 1fr);
    gap: 24px;
}

.profile-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 24px;
    align-items: start;
}

.parent-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 360px;
    gap: 24px;
    align-items: start;
}

.sidebar,
.panel {
    min-width: 0;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 8px;
}

.sidebar {
    padding: 16px;
}

.sidebar a {
    display: block;
    padding: 10px 12px;
    border-radius: 6px;
    color: var(--text);
}

.sidebar a.active {
    background: var(--surface-muted);
    font-weight: 650;
}

.panel {
    padding: 24px;
}

.hero {
    padding: 48px 0;
}

.hero h1,
.page-title {
    margin: 0 0 12px;
    font-size: clamp(1.45rem, 2.6vw, 2.05rem);
    line-height: 1.2;
    letter-spacing: 0;
}

.lede {
    max-width: 720px;
    color: var(--muted);
    font-size: 1.125rem;
    line-height: 1.6;
}

.actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 24px;
}

.page-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
    padding: 0 16px;
    border-radius: 6px;
    border: 1px solid var(--line);
    background: var(--surface);
    color: var(--text);
    font-weight: 650;
    cursor: pointer;
}

.button.primary {
    border-color: var(--primary);
    background: var(--primary);
    color: #ffffff;
}

.button.primary:hover {
    background: var(--primary-dark);
    text-decoration: none;
}

.button.success {
    border-color: var(--success);
    background: var(--success);
    color: #ffffff;
}

.button.success:hover {
    filter: brightness(1.05);
    text-decoration: none;
}

.button.danger {
    border-color: #f3b8b3;
    color: var(--danger);
}

.form {
    display: grid;
    gap: 16px;
    max-width: 420px;
}

.field {
    display: grid;
    gap: 6px;
}

.field label {
    font-weight: 650;
}

.field input,
.field select,
.field textarea {
    width: 100%;
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 0 12px;
    font: inherit;
}

.field input,
.field select {
    min-height: 42px;
}

.field textarea {
    min-height: 110px;
    padding-top: 10px;
    resize: vertical;
}

.field.compact {
    min-width: 180px;
}

.field.compact span {
    font-weight: 650;
}

.filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: end;
    margin: 20px 0;
}

.wide-form {
    max-width: none;
}

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

.admin-shell .question-meta-grid {
    grid-template-columns: minmax(140px, 220px) minmax(0, 1fr) minmax(0, 1fr);
    align-items: start;
}

@media (max-width: 1100px) {
    .admin-shell .question-meta-grid {
        grid-template-columns: 1fr 1fr;
    }

    .admin-shell .field-subject {
        grid-column: 1 / -1;
    }
}

@media (max-width: 720px) {
    .admin-shell .question-meta-grid {
        grid-template-columns: 1fr;
    }
}

.admin-shell .field-subject select {
    width: 100%;
    max-width: 100%;
    min-height: 2.5rem;
    height: auto;
}

.admin-shell .topic-grade-checklist {
    max-height: 14rem;
    overflow: auto;
    border: 1px solid var(--line, #d1d5db);
    padding: 0.5rem 0.65rem;
    border-radius: 8px;
    margin-top: 0.35rem;
    background: var(--surface, #fff);
}

.admin-shell .topic-grade-checklist--compact {
    max-height: 12rem;
}

.admin-shell .topic-grade-checklist .checklist-item {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    padding: 0.4rem 0.2rem;
    border-radius: 4px;
}

.admin-shell .topic-grade-checklist .checklist-item input[type="checkbox"] {
    flex-shrink: 0;
    margin-top: 0.2rem;
    width: 1rem;
    height: 1rem;
    accent-color: var(--accent, #5b62e9);
}

.admin-shell .topic-grade-checklist .checklist-item span {
    flex: 1;
    min-width: 0;
    line-height: 1.4;
}

.admin-shell .option-row-error {
    outline: 2px solid var(--danger, #c53030);
    outline-offset: 2px;
    border-radius: 8px;
    padding: 4px;
    margin: 2px 0;
}

.admin-shell .input-invalid {
    border-color: var(--danger, #c53030) !important;
    box-shadow: 0 0 0 1px rgba(197, 48, 48, 0.2);
}

.alert {
    padding: 12px 14px;
    border-radius: 6px;
    border: 1px solid var(--line);
    background: var(--surface-muted);
}

.alert.error {
    border-color: #f3b8b3;
    color: var(--danger);
    background: #fff2f0;
}

.notice {
    display: grid;
    gap: 4px;
    margin: 16px 0;
    padding: 12px 14px;
    border-radius: 6px;
    border: 1px solid var(--line);
    background: var(--surface-muted);
}

.notice.success {
    border-color: #abefc6;
    color: var(--success);
    background: #ecfdf3;
}

.alert.success {
    border-color: #abefc6;
    color: var(--success);
    background: #ecfdf3;
}

.link-code-panel {
    display: grid;
    grid-template-columns: 136px minmax(0, 1fr);
    gap: 14px;
    align-items: center;
    margin: 16px 0;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface-muted);
}

.link-code-panel code {
    display: block;
    margin: 6px 0;
    font-size: 1.15rem;
    font-weight: 800;
    letter-spacing: 0.08em;
}

.qr-frame {
    width: 136px;
    aspect-ratio: 1;
    padding: 8px;
    border-radius: 6px;
    background: #ffffff;
    border: 1px solid var(--line);
}

.qr-code {
    display: block;
    width: 100%;
    height: 100%;
    fill: var(--text);
}

.section-title {
    margin: 0 0 16px;
    font-size: 1.05rem;
}

.divider {
    margin: 24px 0;
    border: 0;
    border-top: 1px solid var(--line);
}

.field small {
    color: var(--muted);
    line-height: 1.4;
}

.field-error {
    color: var(--danger) !important;
}

.checkbox-field {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: 42px;
    color: var(--text);
    font-weight: 650;
}

.empty-state {
    display: grid;
    gap: 6px;
    margin-top: 24px;
    padding: 18px;
    border: 1px dashed var(--line);
    border-radius: 8px;
    background: var(--surface-muted);
    color: var(--muted);
}

.empty-state strong {
    color: var(--text);
}

.table-wrap {
    overflow-x: auto;
    border: 1px solid var(--line);
    border-radius: 8px;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 780px;
}

.data-table th,
.data-table td {
    padding: 12px;
    border-bottom: 1px solid var(--line);
    text-align: left;
    vertical-align: top;
}

.data-table th {
    color: var(--muted);
    font-size: 0.8125rem;
    font-weight: 750;
    background: var(--surface-muted);
}

.data-table tr:last-child td {
    border-bottom: 0;
}

.muted-line {
    display: block;
    margin-top: 3px;
    color: var(--muted);
    font-size: 0.875rem;
}

.badge {
    display: inline-flex;
    align-items: center;
    min-height: 26px;
    padding: 0 8px;
    border: 1px solid var(--line);
    border-radius: 6px;
    background: var(--surface-muted);
    color: var(--text);
    font-size: 0.8125rem;
    font-weight: 650;
}

.badge.success {
    border-color: #abefc6;
    color: var(--success);
    background: #ecfdf3;
}

.badge.warning {
    border-color: #fedf89;
    color: #93370d;
    background: #fffaeb;
}

.badge.danger {
    border-color: #f3b8b3;
    color: var(--danger);
    background: #fff2f0;
}

.type-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 14px 0;
}

.type-tab {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 38px;
    padding: 0 12px;
    border: 1px solid var(--line);
    border-radius: 6px;
    background: var(--surface);
    color: var(--text);
    font-weight: 650;
    cursor: pointer;
}

.type-tab.active {
    border-color: var(--primary);
    background: #eff6ff;
    color: var(--primary-dark);
}

.question-type-panel {
    display: none;
    margin-top: 14px;
    padding: 16px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface-muted);
}

.question-type-panel.active {
    display: block;
}

.option-row,
.pair-row,
.fill-row {
    display: grid;
    grid-template-columns: 90px minmax(0, 1fr) minmax(0, 1fr) 120px;
    gap: 12px;
    align-items: center;
    padding: 10px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface);
}

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

.fill-row {
    grid-template-columns: minmax(120px, 1fr) minmax(0, 1fr) 190px 120px 42px;
}

.stack {
    display: grid;
    gap: 12px;
}

.row-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.row-actions form {
    margin: 0;
}

.ai-job-panel {
    margin-top: 24px;
}

.ai-meta-grid {
    margin-bottom: 20px;
}

.ai-result-list {
    display: grid;
    gap: 14px;
    margin-top: 18px;
}

.ai-result-card h3 {
    margin: 12px 0 6px;
    line-height: 1.35;
}

.ai-edit-form {
    margin-top: 14px;
    padding: 14px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface-muted);
}

.ai-edit-form textarea {
    min-height: 78px;
}

.push-workbench {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 20px;
    align-items: start;
    margin-top: 22px;
}

.push-form {
    padding: 18px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface-muted);
}

.form-grid.two-col {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.push-subject-field {
    grid-column: span 2;
}

.hidden-field {
    display: none;
}

.push-preview {
    position: sticky;
    top: 16px;
    background: #111827;
}

.push-phone {
    min-height: 260px;
    padding: 18px;
    border-radius: 8px;
    background: linear-gradient(180deg, #1f2937, #0f172a);
}

.push-phone-top {
    width: 84px;
    height: 6px;
    margin: 0 auto 28px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.38);
}

.push-bubble {
    padding: 14px;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.92);
    box-shadow: 0 16px 36px rgba(0, 0, 0, 0.26);
}

.push-bubble strong,
.push-bubble span {
    display: block;
}

.push-bubble p {
    margin: 8px 0;
    color: var(--text);
    line-height: 1.35;
    overflow-wrap: anywhere;
}

.push-bubble span {
    color: var(--muted);
    font-size: 0.8125rem;
}

.push-inline-form {
    width: 100%;
    margin-top: 10px;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface);
}

.push-inline-form textarea {
    min-height: 72px;
}

.push-edit-table-row td {
    background: #fbfdff;
}

.push-edit-table-row .inline-editor {
    width: 100%;
}

.push-edit-table-row .push-inline-form {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: end;
}

.push-edit-table-row .push-inline-form .field:first-of-type {
    grid-column: span 2;
}

.push-edit-table-row .push-inline-form button {
    width: fit-content;
}

.split-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 360px;
    gap: 20px;
    align-items: start;
}

.subpanel {
    min-width: 0;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface);
    padding: 18px;
}

.code-textarea {
    min-height: 420px;
    font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
    font-size: 0.88rem;
    line-height: 1.5;
    white-space: pre;
    overflow: auto;
}

.health-card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 14px;
}

.health-card {
    display: grid;
    gap: 12px;
    min-width: 0;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface);
    padding: 16px;
}

.health-card h2 {
    margin: 0;
    font-size: 1rem;
    line-height: 1.35;
}

.health-card-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.health-stat-list {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 8px;
    margin: 0;
}

.health-stat-list div {
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 8px;
    background: var(--surface-muted);
}

.health-stat-list dt {
    color: var(--muted);
    font-size: 0.72rem;
    font-weight: 800;
    text-transform: uppercase;
}

.health-stat-list dd {
    margin: 2px 0 0;
    font-weight: 800;
}

.inline-review-form {
    display: grid;
    gap: 8px;
}

.topic-tree-list {
    display: grid;
    gap: 8px;
    margin: 0;
    padding-left: 18px;
}

.topic-tree-list li {
    margin: 0;
}

.topic-tree-list summary {
    min-height: 34px;
    cursor: pointer;
}

.topic-tree-list summary a {
    font-weight: 750;
}

.topic-tree-list summary span {
    margin-left: 8px;
    color: var(--muted);
    font-size: 0.875rem;
}

.skill-section {
    margin-top: 8px;
}

.small-title {
    margin-top: 18px;
    font-size: 1rem;
}

.skill-list {
    display: grid;
    gap: 12px;
    margin-top: 14px;
}

.skill-row {
    display: grid;
    grid-template-columns: minmax(120px, 0.8fr) minmax(140px, 1fr) minmax(140px, 1fr);
    gap: 12px;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface-muted);
}

.skill-row .checkbox-field,
.skill-row .row-actions {
    grid-column: span 1;
}

.child-list {
    display: grid;
    gap: 14px;
    margin-top: 24px;
}

.child-card {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto auto;
    gap: 18px;
    align-items: center;
    padding: 16px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface);
}

.child-card h2 {
    margin: 0 0 4px;
    font-size: 1.125rem;
}

.child-card p {
    margin: 0;
    color: var(--muted);
    overflow-wrap: anywhere;
}

.child-card dl {
    display: flex;
    gap: 16px;
    margin: 0;
}

.child-card dt {
    color: var(--muted);
    font-size: 0.8125rem;
}

.child-card dd {
    margin: 2px 0 0;
    font-weight: 700;
}

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

.metric {
    padding: 16px;
    background: var(--surface-muted);
    border-radius: 8px;
}

.metric strong {
    display: block;
    margin-bottom: 4px;
}

.profile-summary h2 {
    margin: 0 0 16px;
    font-size: 1.125rem;
}

.profile-summary dl {
    display: grid;
    gap: 8px;
    margin: 0;
}

.profile-summary dt {
    color: var(--muted);
    font-size: 0.875rem;
}

.profile-summary dd {
    margin: 0 0 8px;
    font-weight: 650;
}

.student-hero-panel {
    display: flex;
    justify-content: space-between;
    gap: 24px;
    align-items: end;
}

.student-dashboard-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.65fr);
    gap: 20px;
    margin-top: 20px;
}

.section-kicker {
    margin-bottom: 8px;
    color: var(--muted);
    font-size: 0.8125rem;
    font-weight: 800;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.mission-panel,
.streak-panel {
    min-height: 190px;
}

.mission-panel h2,
.streak-panel h2 {
    margin: 0 0 10px;
}

.mission-panel p {
    max-width: 620px;
    color: var(--muted);
    line-height: 1.55;
}

.streak-panel {
    border-color: #fedf89;
    background: #fffaeb;
}

.streak-panel strong {
    display: block;
    font-size: 3rem;
    line-height: 1;
    color: #93370d;
}

.streak-panel span,
.streak-panel p {
    color: #93370d;
}

.compact-head {
    align-items: center;
}

.compact-head h2 {
    margin: 0;
}

.last-activity {
    display: grid;
    gap: 10px;
    padding: 16px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface-muted);
}

.last-activity span {
    color: var(--muted);
}

.progress-metrics {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

.progress-metrics .metric {
    min-height: 96px;
}

.progress-metrics strong {
    font-size: 1.75rem;
}

.progress-metrics span {
    color: var(--muted);
}

.achievement-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
    margin-top: 16px;
}

.achievement-card {
    min-height: 154px;
    padding: 16px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface);
}

.achievement-card.locked {
    background: var(--surface-muted);
}

.achievement-card h3 {
    margin: 14px 0 8px;
}

.achievement-card p {
    margin: 0;
    color: var(--muted);
    line-height: 1.45;
}

/* Достижения: иконка слева, текст справа (ориентир — «персональные достижения» одностраничного кабинета). */
.achievement-java-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px 22px;
    margin-top: 18px;
}

@media (max-width: 1024px) {
    .achievement-java-grid {
        grid-template-columns: 1fr;
    }
}

.achievement-java-row {
    display: flex;
    align-items: center;
    gap: 16px;
    min-height: 104px;
    padding: 14px 16px;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: var(--surface);
    transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.achievement-java-row.is-locked {
    background: var(--surface-muted);
}

.achievement-java-icon-wrap {
    flex: 0 0 auto;
}

.achievement-java-icon-ring {
    position: relative;
    width: 72px;
    height: 72px;
    border-radius: 50%;
    padding: 3px;
    background: linear-gradient(145deg, #34d399, #10b981);
    box-shadow: 0 6px 18px rgba(16, 185, 129, 0.25);
}

.achievement-java-row.is-locked .achievement-java-icon-ring {
    background: #cbd5e1;
    box-shadow: none;
}

.achievement-java-img {
    display: block;
    width: 66px;
    height: 66px;
    border-radius: 50%;
    object-fit: cover;
    background: #fff;
}

.achievement-java-row.is-locked .achievement-java-img {
    filter: grayscale(0.9) opacity(0.72);
}

.achievement-java-check {
    display: none;
    position: absolute;
    right: -2px;
    bottom: -2px;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: #16a34a;
    border: 2px solid #fff;
    box-shadow: 0 2px 6px rgba(15, 23, 42, 0.12);
}

.achievement-java-row.is-earned .achievement-java-check {
    display: block;
}

.achievement-java-check::after {
    content: "";
    position: absolute;
    left: 6px;
    top: 3px;
    width: 6px;
    height: 10px;
    border: solid #fff;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.achievement-java-copy {
    flex: 1 1 auto;
    min-width: 0;
}

.achievement-java-title {
    margin: 0 0 6px;
    font-size: 1.05rem;
    font-weight: 800;
    color: #0f172a;
    letter-spacing: -0.01em;
}

.achievement-java-desc {
    margin: 0 0 8px;
    color: #334155;
    font-size: 0.93rem;
    line-height: 1.45;
}

.achievement-java-meter {
    margin: 0;
    font-size: 0.9rem;
    font-weight: 700;
    color: #16a34a;
}

.achievement-java-row.is-locked .achievement-java-meter {
    color: #64748b;
}

.achievement-open-all.linkish-button {
    background: transparent;
    border: 0;
    padding: 0;
    margin: 0;
    cursor: pointer;
    font: inherit;
    font-weight: 650;
    color: #2563eb;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.achievement-open-all.linkish-button:hover {
    text-decoration: underline;
}

.achievement-open-all .chev {
    font-size: 1.1rem;
    line-height: 1;
    opacity: 0.85;
}

.toast-stack {
    position: fixed;
    right: 16px;
    top: 96px;
    z-index: 4500;
    display: flex;
    flex-direction: column;
    gap: 10px;
    width: min(360px, calc(100vw - 32px));
    pointer-events: none;
}

.toast-card {
    pointer-events: auto;
    position: relative;
    padding: 12px 38px 12px 14px;
    border-radius: 12px;
    border: 1px solid var(--line);
    background: var(--surface);
    box-shadow: 0 16px 40px rgba(15, 23, 42, 0.15);
    opacity: 0;
    transform: translateY(-6px);
    transition: opacity 0.22s ease, transform 0.22s ease;
}

.toast-card.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.toast-success {
    border-color: #bbf7d0;
    background: linear-gradient(135deg, #ecfdf3 0%, #fff 55%);
}

.toast-title {
    display: block;
    font-size: 0.95rem;
    margin: 0 0 4px;
}

.toast-body {
    margin: 0;
    font-size: 0.88rem;
    color: var(--muted);
    line-height: 1.45;
}

.toast-close {
    position: absolute;
    top: 4px;
    right: 6px;
    border: 0;
    background: transparent;
    font-size: 1.35rem;
    line-height: 1;
    cursor: pointer;
    color: var(--muted);
    padding: 4px 8px;
}

.toast-close:hover {
    color: #0f172a;
}

.notification-settings {
    display: grid;
    gap: 10px;
    margin: 0;
}

.notification-settings legend {
    padding: 0 4px;
    font-weight: 750;
}

.test-type-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
    margin: 24px 0;
}

.test-type-card {
    padding: 18px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface);
}

.test-type-card.active {
    border-color: #abefc6;
    background: #ecfdf3;
}

.test-type-card.muted {
    background: var(--surface-muted);
}

.test-type-card h2 {
    margin: 12px 0 6px;
    font-size: 1.125rem;
}

.test-type-card p {
    margin: 0;
    color: var(--muted);
}

.test-session-head,
.result-summary,
.analytics-hero {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    align-items: center;
}

.timer-box,
.score-ring {
    display: grid;
    place-items: center;
    min-width: 132px;
    aspect-ratio: 1;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface-muted);
}

.timer-box span,
.score-ring span {
    color: var(--muted);
    font-size: 0.8125rem;
    font-weight: 650;
}

.timer-box strong,
.score-ring strong {
    font-size: 2rem;
    line-height: 1;
}

.test-nav {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(42px, 1fr));
    gap: 8px;
}

.test-nav a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
    border: 1px solid var(--line);
    border-radius: 6px;
    background: var(--surface);
    color: var(--text);
    font-weight: 750;
}

.result-nav {
    margin-bottom: 16px;
}

.result-nav a.active {
    border-color: #f3b8b3;
    background: #fff2f0;
    color: var(--danger);
}

.result-nav a.answered {
    border-color: #abefc6;
    background: #ecfdf3;
    color: var(--success);
}

.question-panel {
    margin-top: 18px;
}

.question-kicker,
.result-row-head {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    color: var(--muted);
    font-size: 0.875rem;
    font-weight: 650;
}

.question-panel h2,
.result-row h3 {
    margin: 14px 0;
    line-height: 1.35;
}

.answer-block,
.matching-answer,
.result-list {
    display: grid;
    gap: 12px;
}

.answer-option {
    display: grid;
    grid-template-columns: 22px minmax(0, 1fr);
    gap: 10px;
    align-items: start;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface);
}

.answer-option:hover {
    background: var(--surface-muted);
}

.answer-option input {
    margin-top: 3px;
}

.answer-option span span {
    margin-left: 8px;
}

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

.result-row {
    padding: 16px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface);
}

.result-detail {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
    margin-top: 12px;
}

.result-detail pre {
    min-height: 54px;
    overflow-x: auto;
    margin: 6px 0 0;
    padding: 10px;
    border: 1px solid var(--line);
    border-radius: 6px;
    background: var(--surface-muted);
    white-space: pre-wrap;
}

.knowledge-list,
.timeline-list {
    display: grid;
    gap: 10px;
}

.knowledge-row,
.timeline-row {
    display: grid;
    grid-template-columns: minmax(180px, 1fr) minmax(120px, 1.2fr) 56px auto;
    gap: 14px;
    align-items: center;
    padding: 14px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface);
}

.knowledge-row strong,
.knowledge-row span,
.timeline-row strong,
.timeline-row span {
    display: block;
}

.knowledge-row > div > span,
.timeline-row span {
    color: var(--muted);
    font-size: 0.875rem;
}

.mastery-bar {
    height: 10px;
    overflow: hidden;
    border-radius: 999px;
    background: var(--surface-muted);
}

.mastery-bar span {
    display: block;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, var(--danger), #f79009 48%, var(--success));
}

.timeline-row {
    grid-template-columns: 72px minmax(0, 1fr);
    color: var(--text);
}

.lecture-editor-form .notice {
    margin-top: 12px;
}

.compact-tabs {
    margin: 0;
}

.lecture-tab-panel,
.control-block,
.lecture-content {
    display: none;
}

.lecture-tab-panel.active,
.control-block.active,
.lecture-content.active {
    display: block;
}

textarea.lecture-textarea {
    min-height: 320px;
    line-height: 1.55;
}

.attachment-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.25fr) 120px;
    gap: 12px;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface-muted);
}

.lecture-list,
.attachment-list,
.checkpoint-list {
    display: grid;
    gap: 14px;
    margin-top: 20px;
}

.lecture-card {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 16px;
    align-items: center;
    padding: 16px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface);
}

.lecture-card h2 {
    margin: 10px 0 6px;
    font-size: 1.25rem;
}

.lecture-card p {
    margin: 0;
    color: var(--muted);
}

.lecture-card-meta {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 8px;
}

.lecture-reader-page {
    max-width: 860px;
}

.lecture-reader {
    overflow: hidden;
}

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

.lecture-hero {
    margin-top: 18px;
    padding: 22px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface-muted);
}

.lecture-hero h1 {
    margin: 12px 0 8px;
    font-size: clamp(2rem, 6vw, 3rem);
    line-height: 1.05;
    letter-spacing: 0;
}

.lecture-hero p {
    margin: 0;
    color: var(--muted);
}

.lecture-content {
    margin-top: 18px;
    color: var(--text);
    font-size: 1.0625rem;
    line-height: 1.75;
    overflow-wrap: anywhere;
}

.lecture-content code,
.lecture-content pre {
    white-space: pre-wrap;
}

.lecture-materials,
.lecture-checkpoints {
    margin-top: 26px;
}

.attachment-card,
.checkpoint-card {
    display: block;
    padding: 14px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface);
}

.attachment-card:hover {
    text-decoration: none;
    background: var(--surface-muted);
}

.attachment-card strong,
.attachment-card span {
    display: block;
}

.attachment-card span,
.checkpoint-card p {
    color: var(--muted);
}

.checkpoint-card h3 {
    margin: 12px 0 8px;
    line-height: 1.35;
}

.quiz-hero-panel,
.quiz-room-head,
.quiz-progress-panel {
    display: flex;
    justify-content: space-between;
    gap: 18px;
    align-items: center;
}

.quiz-workbench {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 360px;
    gap: 20px;
    align-items: start;
    margin-top: 20px;
}

.quiz-code-box {
    display: grid;
    gap: 6px;
    min-width: 160px;
    padding: 16px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface-muted);
    text-align: center;
}

.quiz-code-box strong {
    font-size: 1.65rem;
    letter-spacing: 0.08em;
}

.quiz-room-page {
    overflow-x: clip;
}

.muted-inline {
    display: inline-block;
    color: var(--muted);
    font-size: 0.55em;
}

.participant-list {
    display: grid;
    gap: 10px;
}

.participant-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto auto auto;
    gap: 10px;
    align-items: center;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface);
}

.participant-main,
.participant-row strong,
.participant-row span,
.answer-option > span,
.answer-option > span span,
.question-panel h2 {
    min-width: 0;
    overflow-wrap: anywhere;
}

.participant-main {
    display: grid;
    gap: 2px;
}

.quiz-answer-progress {
    white-space: nowrap;
}

.quiz-live-ready .quiz-round-panel:not(.active) {
    display: none;
}

.quiz-round-nav a.active {
    border-color: var(--primary);
    background: #eff6ff;
    color: var(--primary-dark);
}

.quiz-round-nav a.answered {
    border-color: #abefc6;
    background: #ecfdf3;
    color: var(--success);
}

.quiz-submit-status {
    margin: 0 0 12px;
}

.compact-timer {
    min-width: 96px;
}

.quiz-result-card {
    display: grid;
    grid-template-columns: 48px minmax(0, 1fr) 112px;
    gap: 16px;
    align-items: center;
    padding: 16px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface);
}

.quiz-rank {
    display: grid;
    place-items: center;
    width: 42px;
    aspect-ratio: 1;
    border-radius: 8px;
    background: var(--surface-muted);
    font-weight: 800;
}

.quiz-result-card h3 {
    margin: 0 0 6px;
}

.small-score {
    min-width: 96px;
}

@media (max-width: 760px) {
    .topbar {
        height: auto;
        align-items: flex-start;
        flex-direction: column;
        gap: 12px;
        padding: 16px;
    }

    .nav {
        width: 100%;
        gap: 10px 12px;
    }

    .admin-layout,
    .parent-layout,
    .profile-layout,
    .student-hero-panel,
    .student-dashboard-grid,
    .achievement-grid,
    .meta-grid,
    .form-grid,
    .split-layout,
    .skill-row,
    .option-row,
    .pair-row,
    .fill-row,
    .attachment-row,
    .lecture-card,
    .test-type-grid,
    .fill-answer,
    .result-detail {
        grid-template-columns: 1fr;
    }

    .push-workbench,
    .form-grid.two-col {
        grid-template-columns: 1fr;
    }

    .push-subject-field {
        grid-column: span 1;
    }

    .push-preview {
        position: static;
    }

    .push-table {
        min-width: 0;
        border-collapse: separate;
        border-spacing: 0 12px;
    }

    .push-table thead {
        display: none;
    }

    .push-table tbody,
    .push-table tr,
    .push-table td {
        display: block;
        width: 100%;
    }

    .push-table tr {
        overflow: hidden;
        border: 1px solid var(--line);
        border-radius: 8px;
        background: var(--surface);
    }

    .push-table td {
        border-bottom: 1px solid var(--line);
    }

    .push-table td:last-child {
        border-bottom: 0;
    }

    .push-table td::before {
        content: attr(data-label);
        display: block;
        margin-bottom: 4px;
        color: var(--muted);
        font-size: 0.75rem;
        font-weight: 800;
        letter-spacing: 0.04em;
        text-transform: uppercase;
    }

    .push-edit-table-row {
        margin-top: -8px;
        border-style: dashed;
    }

    .push-edit-table-row td::before {
        display: none;
    }

    .push-edit-table-row .push-inline-form {
        grid-template-columns: 1fr;
    }

    .push-edit-table-row .push-inline-form .field:first-of-type {
        grid-column: span 1;
    }

    .push-edit-table-row .push-inline-form button {
        width: 100%;
    }

    .student-hero-panel {
        display: grid;
        align-items: start;
    }

    .page-head,
    .test-session-head,
    .result-summary,
    .analytics-hero,
    .quiz-hero-panel,
    .quiz-room-head,
    .quiz-progress-panel {
        display: grid;
    }

    .quiz-workbench,
    .participant-row,
    .quiz-result-card {
        grid-template-columns: 1fr;
    }

    .quiz-code-box,
    .compact-timer {
        min-width: 0;
        width: 100%;
    }

    .quiz-round-nav {
        grid-template-columns: repeat(auto-fit, minmax(38px, 1fr));
    }

    .answer-option span span {
        display: block;
        margin-left: 0;
    }

    .quiz-answer-progress {
        white-space: normal;
    }

    .knowledge-row {
        grid-template-columns: 1fr;
    }

    .child-card {
        grid-template-columns: 1fr;
        align-items: stretch;
    }

    .child-card dl {
        justify-content: space-between;
    }

    .link-code-panel {
        grid-template-columns: 1fr;
    }

    .lecture-card-meta {
        justify-content: flex-start;
    }

    .lecture-hero {
        padding: 16px;
    }
}

/* Stage 13 visual parity pass: root HTML + admin/mockups language. */
:root {
    --bg: #f8fafc;
    --surface: #ffffff;
    --surface-muted: #f1f5f9;
    --panel-2: #f8fafc;
    --text: #0f172a;
    --muted: #64748b;
    --line: #e2e8f0;
    --primary: #4f46e5;
    --primary-dark: #4338ca;
    --accent: #10b981;
    --success: #059669;
    --danger: #dc2626;
    --warn: #d97706;
    --shadow: 0 18px 44px rgba(79, 70, 229, 0.10);
    --soft-shadow: 0 1px 2px rgba(15, 23, 42, 0.05);
}

body {
    background:
        radial-gradient(circle at 15% 20%, rgba(99, 102, 241, 0.14) 0, transparent 38%),
        radial-gradient(circle at 82% 5%, rgba(16, 185, 129, 0.16) 0, transparent 40%),
        radial-gradient(circle at 50% 90%, rgba(245, 158, 11, 0.15) 0, transparent 42%),
        var(--bg);
    font-family: "Manrope", "Nunito", "Nunito Sans", "Segoe UI", ui-sans-serif, system-ui, sans-serif;
    line-height: 1.5;
}

a:hover {
    text-decoration: none;
}

.app-shell {
    width: min(1180px, calc(100% - 32px));
    min-height: calc(100vh - 32px);
    margin: 16px auto;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.72);
    border-radius: 32px;
    background: rgba(255, 255, 255, 0.86);
    box-shadow: 0 24px 70px rgba(79, 70, 229, 0.13);
    backdrop-filter: blur(16px);
}

.topbar {
    position: sticky;
    top: 0;
    z-index: 20;
    height: auto;
    min-height: 68px;
    border-bottom: 1px solid #f1f5f9;
    background: rgba(255, 255, 255, 0.94);
    padding: 12px 24px;
    backdrop-filter: blur(14px);
}

.brand-link {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    color: var(--text);
}

.brand-link:hover {
    text-decoration: none;
}

.brand-mark {
    display: grid;
    width: 40px;
    height: 40px;
    place-items: center;
    flex: 0 0 auto;
    border-radius: 16px;
    background: var(--primary);
    color: #fff;
    font-size: 0.9rem;
    font-weight: 700;
    box-shadow: var(--soft-shadow);
}

.brand-copy {
    display: grid;
    gap: 1px;
    min-width: 0;
}

.brand-copy strong {
    color: var(--text);
    font-size: 0.95rem;
    font-weight: 700;
    line-height: 1.15;
}

.brand-copy small {
    color: var(--muted);
    font-size: 0.75rem;
    font-weight: 650;
    line-height: 1.2;
}

.nav {
    gap: 8px;
}

.language-select-wrap {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: 40px;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: #fff;
    padding: 2px 8px 2px 10px;
    box-shadow: var(--soft-shadow);
}

.language-select-wrap::before {
    content: none;
}

.lucide-icon {
    width: 1.25em;
    height: 1.25em;
    flex: 0 0 auto;
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.language-icon {
    color: #64748b;
    width: 16px;
    height: 16px;
}

.nav a,
.nav .link-button,
.language-select {
    min-height: 38px;
    border-radius: 12px;
    font-size: 0.875rem;
    font-weight: 700;
}

.nav a {
    display: inline-flex;
    align-items: center;
    padding: 0 12px;
    color: #475569;
}

.nav a:hover {
    background: #eef2ff;
    color: #3730a3;
}

.nav .link-button {
    padding: 0 12px;
}

.language-select {
    min-height: 32px;
    border-color: transparent;
    background: #fff;
    padding: 0 8px;
    color: #475569;
}

.language-form {
    margin: 0;
}

.page {
    width: 100%;
    max-width: 1080px;
    margin: 0 auto;
    padding: 28px 24px 44px;
}

.student-header {
    position: sticky;
    top: 0;
    z-index: 24;
    border-bottom: 1px solid #f1f5f9;
    background: rgba(255, 255, 255, 0.95);
    padding: 12px 24px 14px;
    backdrop-filter: blur(14px);
}

.student-header-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.student-header .brand-mark {
    background: var(--primary);
}

.student-header-actions {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-width: 0;
}

.student-logout {
    margin: 0;
}

.student-logout-button {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    min-height: 40px;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: #fff;
    color: #475569;
    padding: 0 12px;
    font: inherit;
    font-size: 0.78rem;
    font-weight: 700;
    box-shadow: var(--soft-shadow);
    cursor: pointer;
}

.student-logout-button:hover {
    border-color: #c7d2fe;
    background: #eef2ff;
    color: #3730a3;
}

.student-nav-grid {
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 8px;
    margin-top: 12px;
    border: 1px solid var(--line);
    border-radius: 22px;
    background: #fff;
    padding: 8px;
    box-shadow: var(--soft-shadow);
}

.student-nav-grid a,
.student-nav-grid button {
    display: grid;
    min-width: 0;
    min-height: 56px;
    place-items: center;
    gap: 4px;
    border: 0;
    border-radius: 16px;
    background: transparent;
    color: #64748b;
    padding: 7px 6px;
    font: inherit;
    font-size: 0.76rem;
    font-weight: 700;
    line-height: 1.1;
    text-align: center;
    cursor: pointer;
}

.student-nav-grid a:hover,
.student-nav-grid button:hover,
.student-nav-grid a.active {
    background: #eef2ff;
    color: #4338ca;
}

.student-nav-grid .lucide-icon {
    width: 20px;
    height: 20px;
}

.panel,
.metric,
.test-type-card,
.achievement-card,
.lecture-card,
.child-card,
.result-row,
.health-card,
.subpanel,
.question-type-panel,
.answer-option,
.last-activity,
.attachment-card,
.checkpoint-card,
.quiz-result-card,
.participant-row,
.quiz-code-box,
.empty-state,
.notice,
.alert {
    border-color: #e2e8f0;
    border-radius: 24px;
    box-shadow: var(--soft-shadow);
}

.panel {
    background: rgba(255, 255, 255, 0.96);
    padding: 24px;
}

.hero {
    display: grid;
    grid-template-columns: minmax(0, 1.02fr) minmax(280px, 0.98fr);
    gap: 32px;
    align-items: center;
    padding: 30px 0 18px;
}

/* ::after удалён — иллюстрация hero теперь inline SVG в index.html */
.hero-visual {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 320px;
}

.hero h1,
.page-title {
    color: var(--text);
    font-weight: 800;
    letter-spacing: 0;
}

.hero h1 {
    max-width: 620px;
}

.lede {
    color: var(--muted);
    font-size: 1rem;
    line-height: 1.7;
}

.button {
    min-height: 42px;
    border-radius: 14px;
    box-shadow: var(--soft-shadow);
    transition: transform 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}

.button:hover {
    transform: translateY(-1px);
    border-color: #c7d2fe;
    background: #eef2ff;
    color: #3730a3;
}

.button.primary {
    border-color: transparent;
    background: var(--primary);
    box-shadow: 0 10px 24px rgba(79, 70, 229, 0.22);
}

.button.primary:hover {
    background: var(--primary-dark);
    color: #fff;
}

.button.danger:hover {
    border-color: #fecaca;
    background: #fef2f2;
    color: #991b1b;
}

.meta-grid {
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.metric,
.stat {
    border: 1px solid var(--line);
    background: linear-gradient(145deg, #ffffff 0%, rgba(255, 251, 235, 0.82) 100%);
    padding: 16px;
}

.metric strong,
.stat b {
    color: var(--text);
    font-weight: 700;
}

.metric span,
.stat span,
.stat p {
    color: var(--muted);
}

.feature-grid,
.flow-grid {
    display: grid;
    gap: 16px;
    margin-top: 24px;
}

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

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

.feature-card,
.warm-card,
.program-band,
.faq-card {
    border: 1px solid var(--line);
    border-radius: 24px;
    background: #fff;
    padding: 20px;
    box-shadow: var(--soft-shadow);
}

.feature-card:hover,
.warm-card:hover,
.faq-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 36px rgba(15, 23, 42, 0.08);
}

.feature-card h2,
.feature-card h3,
.warm-card h2,
.warm-card h3,
.program-band h2,
.faq-card h3 {
    margin: 8px 0;
}

.feature-card p,
.warm-card p,
.program-band p,
.faq-card p {
    color: var(--muted);
    margin: 0;
}

.warm-card {
    background: linear-gradient(145deg, #ffffff 0%, rgba(255, 251, 235, 0.98) 100%);
    border-color: #fde68a;
}

.program-band {
    margin-top: 28px;
    background: rgba(238, 242, 255, 0.72);
    border-color: #c7d2fe;
}

.auth-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(320px, 0.8fr);
    gap: 24px;
    align-items: center;
}

.auth-grid > section > .page-title {
    font-size: clamp(1.35rem, 2.1vw, 1.8rem);
    line-height: 1.22;
}

.auth-panel {
    border-radius: 28px;
    box-shadow: 0 18px 42px rgba(15, 23, 42, 0.10);
}

.auth-panel .form {
    max-width: none;
}

.auth-panel .field {
    gap: 7px;
}

.auth-panel .field label {
    font-size: 0.88rem;
    font-weight: 600;
    color: #334155;
}

.auth-panel .form {
    display: grid;
    gap: 14px;
    align-content: start;
}

.auth-panel .field {
    display: grid;
    gap: 6px;
}

.auth-panel .field .alert {
    margin: 0;
    padding: 8px 10px;
    font-size: 0.78rem;
    line-height: 1.35;
}

.auth-register-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.auth-register-span {
    grid-column: span 2;
}

.student-profile-page {
    align-items: start;
}

.student-profile-page .page-title,
.student-profile-page .profile-summary h2 {
    font-family: "Manrope", "Nunito", "Segoe UI", ui-sans-serif, system-ui, sans-serif;
    font-weight: 700;
    letter-spacing: 0;
}

.student-profile-page .page-title {
    font-size: clamp(1.8rem, 3.4vw, 2.35rem);
    line-height: 1.16;
}

.student-profile-page .lede,
.student-profile-page .field label,
.student-profile-page .checkbox-field span,
.student-profile-page .profile-summary dt,
.student-profile-page .profile-summary dd {
    font-family: "Nunito", "Manrope", "Segoe UI", ui-sans-serif, system-ui, sans-serif;
}

.student-profile-page .field label {
    font-weight: 600;
    color: #334155;
}

.student-profile-page .profile-summary dd {
    font-weight: 700;
    color: #0f172a;
}

.student-profile-page .notification-settings legend {
    font-family: "Manrope", "Nunito", "Segoe UI", ui-sans-serif, system-ui, sans-serif;
    font-weight: 700;
}

.field input,
.field select,
.field textarea,
.input,
.select,
.textarea {
    border-radius: 14px;
    background: #fff;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
    outline: none;
    border-color: #c7d2fe;
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.15);
}

.filter-bar {
    align-items: end;
    margin: 18px 0;
    padding: 14px;
    border: 1px solid var(--line);
    border-radius: 24px;
    background: #fff;
    box-shadow: var(--soft-shadow);
}

.badge {
    border-radius: 999px;
    font-weight: 700;
}

.section-kicker {
    letter-spacing: 0;
}

.student-hero-panel,
.analytics-hero,
.result-summary {
    background: linear-gradient(110deg, #efe7ff, #e6f3ff);
}

.student-home {
    display: grid;
    gap: 18px;
}

.student-home-hero {
    border-radius: 28px;
    background: linear-gradient(110deg, #efe7ff 0%, #e6f3ff 100%);
    padding: 24px;
}

.student-home-hero h1 {
    max-width: 780px;
    margin: 8px 0 0;
    color: var(--text);
    font-size: clamp(1.35rem, 2.5vw, 1.9rem);
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: 0;
}

.student-tests-page {
    display: grid;
    gap: 18px;
}

.tests-hero {
    border-radius: 26px;
    background: linear-gradient(110deg, #efe7ff 0%, #e6f3ff 100%);
    padding: 22px;
}

.tests-hero h1 {
    margin: 8px 0 0;
    font-size: clamp(1.25rem, 2.2vw, 1.75rem);
    line-height: 1.22;
}

.tests-hero p {
    margin: 10px 0 0;
    color: #475569;
    line-height: 1.55;
}

.test-type-grid.mockup {
    grid-template-columns: repeat(5, minmax(0, 1fr));
}

.test-type-card.mockup-active {
    border-color: #c7d2fe;
    background: #eef2ff;
}

.test-type-card.mockup-active .badge {
    border-color: #a5b4fc;
    background: #e0e7ff;
    color: #3730a3;
}

.test-flow {
    display: grid;
    gap: 14px;
}

.test-flow-steps {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
}

.test-flow-step {
    border-radius: 16px;
    background: #f8fafc;
    padding: 12px;
}

.test-flow-step strong {
    display: block;
    margin-top: 4px;
}

.test-flow-filters {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
}

.test-flow-filters .field {
    border-radius: 16px;
    background: #f8fafc;
    padding: 10px 12px;
}

.test-flow-hint {
    border-radius: 16px;
    background: #dff7ee;
    padding: 12px;
}

.test-flow-hint p {
    margin: 0;
}

.student-home-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.45fr) minmax(280px, 0.65fr);
    gap: 18px;
}

.student-home-grid-top {
    align-items: stretch;
}

.card-title-row {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 14px;
}

.card-title-row h2 {
    margin: 0;
    color: var(--text);
    font-size: 1.08rem;
    font-weight: 800;
}

.card-icon {
    display: inline-grid;
    width: 32px;
    height: 32px;
    place-items: center;
    flex: 0 0 auto;
    border-radius: 12px;
    background: #eef2ff;
}

.card-icon.lucide-icon {
    padding: 8px;
    color: var(--primary);
    stroke-width: 2.4;
}

.card-icon::before {
    content: "";
    width: 14px;
    height: 14px;
    border-radius: 4px;
    background: var(--primary);
}

.card-icon.lucide-icon::before {
    content: none;
}

.card-icon-shield {
    background: #dcfce7;
}

.card-icon-shield::before,
.card-icon-star::before {
    background: var(--success);
}

.card-icon-star {
    background: #fef3c7;
}

.card-icon-star::before {
    border-radius: 999px;
    background: #d97706;
}

.card-icon-book {
    background: #e0f2fe;
}

.card-icon-chart {
    background: #ede9fe;
}

.card-icon-route {
    background: #ecfeff;
}

.mission-stack {
    display: grid;
    gap: 12px;
    margin: 14px 0;
}

.mission-step,
.student-stat {
    display: grid;
    gap: 4px;
    border-radius: 20px;
    padding: 14px 16px;
}

.mission-step strong {
    color: var(--text);
    font-size: 0.98rem;
    font-weight: 700;
}

.mission-step span,
.student-word-card span,
.student-stat span,
.student-route-card span {
    color: var(--muted);
    font-size: 0.88rem;
}

.mint {
    background: #dff7ee;
}

.sky {
    background: #e6f3ff;
}

.lavender {
    background: #efe7ff;
}

.amber {
    background: #fef3c7;
}

.student-word-card {
    display: flex;
    flex-direction: column;
}

.student-word-card strong {
    color: var(--primary);
    font-size: 2rem;
    font-weight: 800;
    line-height: 1.1;
}

.student-last-card .last-activity {
    display: grid;
    gap: 8px;
    background: #f8fafc;
}

.student-last-card .last-activity p {
    margin: 0;
    color: #475569;
}

.student-streak-card strong {
    display: block;
    margin-top: 10px;
    color: #78350f;
    font-size: 2.25rem;
    font-weight: 800;
    line-height: 1.05;
}

.student-streak-card > span,
.student-streak-card p {
    color: #92400e;
}

.student-progress-panel {
    display: grid;
    gap: 14px;
}

.student-stat-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
}

.student-stat strong {
    color: var(--text);
    font-size: 1.75rem;
    font-weight: 800;
    line-height: 1.1;
}

.student-route-section {
    display: grid;
    gap: 12px;
}

.student-route-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}

.student-route-card {
    display: grid;
    gap: 8px;
    border: 1px solid var(--line);
    border-radius: 24px;
    background: #fff;
    padding: 20px;
    box-shadow: var(--soft-shadow);
    color: var(--text);
}

.student-route-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 36px rgba(15, 23, 42, 0.08);
}

.student-route-card strong {
    font-size: 1rem;
    font-weight: 700;
}

.route-progress {
    display: block;
    height: 8px;
    overflow: hidden;
    border-radius: 999px;
    background: #f1f5f9;
}

.route-progress b {
    display: block;
    height: 100%;
    border-radius: inherit;
}

.route-progress.danger b {
    background: #ef4444;
}

.route-progress.primary b {
    background: var(--primary);
}

.route-progress.success b {
    background: var(--success);
}

.modal-open {
    overflow: hidden;
}

.modal-layer {
    position: fixed;
    inset: 0;
    z-index: 80;
    display: grid;
    place-items: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.22s ease, visibility 0.22s ease;
}

.modal-layer[hidden] {
    display: none;
}

/* Stage13 absolute final overrides: strict typography + student parity on tests/analytics/quiz. */
body {
    font-family: "Manrope", "Nunito", "Segoe UI", ui-sans-serif, system-ui, sans-serif;
    font-weight: 500;
    line-height: 1.42;
}

.page-title,
.hero h1,
.student-home-hero h1,
.tests-hero h1 {
    font-family: "Manrope", "Nunito", "Segoe UI", ui-sans-serif, system-ui, sans-serif;
    font-weight: 700;
    letter-spacing: 0;
}

.page-title,
.hero h1 {
    font-size: clamp(1.2rem, 1.85vw, 1.56rem);
    line-height: 1.18;
}

.section-title,
h2 {
    font-size: 0.96rem;
    line-height: 1.25;
    font-weight: 700;
}

.lede {
    font-size: 0.9rem;
    line-height: 1.5;
}

.brand-copy strong {
    font-weight: 700;
}

.brand-copy small,
.muted-line {
    font-size: 0.78rem;
}

.student-tests-page,
.student-analytics-page,
.student-quiz-page,
.quiz-results-page {
    display: grid;
    gap: 14px;
}

.tests-hero,
.analytics-hero,
.quiz-hero-panel,
.result-summary {
    border: 1px solid #dbeafe;
    border-radius: 16px;
    background: linear-gradient(110deg, #efe7ff 0%, #e6f3ff 100%);
}

.tests-hero h1,
.analytics-hero .page-title,
.quiz-hero-panel .page-title,
.result-summary .page-title {
    font-size: clamp(1.16rem, 1.8vw, 1.5rem);
}

.test-type-grid.mockup {
    gap: 10px;
}

.test-type-card {
    border-radius: 14px;
    padding: 14px;
}

.test-type-card h2 {
    font-size: 0.94rem;
    margin: 8px 0 4px;
}

.test-flow-steps,
.test-flow-filters {
    gap: 8px;
}

.test-flow-step,
.test-flow-filters .field,
.test-flow-hint {
    border-radius: 12px;
}

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

.quiz-hub-cards {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
}

.quiz-hub-cards .panel {
    min-height: 118px;
}

.quiz-lobby-panel {
    border: 1px solid #dbeafe;
    background: #fbfdff;
}

.quiz-room-head .page-title {
    margin-bottom: 4px;
}

.quiz-code-box {
    border-radius: 14px;
    min-width: 132px;
}

.participant-row,
.quiz-result-card,
.result-row,
.knowledge-row,
.timeline-row {
    border-radius: 14px;
}

.question-panel,
.answer-option {
    border-radius: 14px;
}

.data-table th {
    font-size: 0.74rem;
}

.button,
.student-nav-grid a,
.student-nav-grid button,
.type-tab,
.type-tabs a.type-tab {
    font-weight: 700;
}

@media (max-width: 1020px) {
    .analytics-grid,
    .quiz-hub-cards {
        grid-template-columns: 1fr;
    }

    .lecture-details-grid {
        grid-template-columns: 1fr;
    }

    .lecture-data-table td:last-child {
        min-width: 240px;
    }
}

@media (max-width: 760px) {
    .lecture-attachment-grid {
        grid-template-columns: 1fr;
    }

    .lecture-query-field {
        min-width: 100% !important;
    }

    .lecture-list-stats .meta-grid {
        grid-template-columns: 1fr;
    }

    .lecture-row-actions {
        display: grid;
        grid-template-columns: 1fr;
    }

    .lecture-row-actions form,
    .lecture-row-actions .button {
        width: 100%;
    }
}

/* Stage13 test session + result parity fix (student-test-session.html / student-test-result.html). */
.student-test-session-page {
    display: grid;
    gap: 14px;
}

.student-test-session-page .session-shell-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    border: 1px solid #e2e8f0;
    border-radius: 16px;
    background: #ffffff;
}

.student-test-session-page .session-shell-title .page-title {
    margin: 4px 0 6px;
    font-size: 1.02rem;
    line-height: 1.3;
}

.student-test-session-page .session-shell-title .section-kicker {
    margin: 0;
    color: #0f172a;
    font-size: 0.9rem;
    font-weight: 800;
    text-transform: none;
}

.student-test-session-page .session-shell-title .lede {
    margin: 0;
    color: #64748b;
    font-size: 0.76rem;
    line-height: 1.35;
}

.student-test-session-page .session-shell-right {
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.student-test-session-page .timer-box {
    min-width: 112px;
    width: auto;
    aspect-ratio: auto;
    border-radius: 14px;
    border: 1px solid #fecdd3;
    background: #fff1f2;
    padding: 8px 12px;
}

.student-test-session-page .timer-box span {
    font-size: 0.68rem;
    letter-spacing: 0;
    text-transform: uppercase;
    color: #be123c;
}

.student-test-session-page .timer-box strong {
    font-size: 1.1rem;
    color: #be123c;
}

.student-test-session-page .session-progress-panel {
    border-radius: 16px;
    padding: 16px;
}

.student-test-session-page .session-progress-head {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
}

.student-test-session-page .test-nav {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(42px, 1fr));
    gap: 8px;
    margin-top: 10px;
}

.student-test-session-page .test-nav button {
    min-height: 38px;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    background: #fff;
    color: #475569;
    font: inherit;
    font-size: 0.82rem;
    font-weight: 700;
    cursor: pointer;
}

.student-test-session-page .test-nav button.active {
    border-color: #c7d2fe;
    background: #eef2ff;
    color: #3730a3;
}

.student-test-session-page .test-nav button.answered {
    border-color: #abefc6;
    background: #ecfdf3;
    color: #147d64;
}

.student-test-session-page .question-panel {
    border-radius: 18px;
    padding: 18px;
}

.student-test-session-page .question-panel h2 {
    margin-top: 8px;
    margin-bottom: 14px;
    font-size: clamp(1.04rem, 1.4vw, 1.2rem);
    line-height: 1.35;
}

.student-test-session-page .fill-inline-body {
    display: block;
}

.student-test-session-page .fill-inline-input {
    width: 88px;
    max-width: 100%;
    margin: 0 4px;
    border: 1px solid #cbd5e1;
    border-radius: 10px;
    background: #ffffff;
    color: #0f172a;
    padding: 4px 8px;
    font: inherit;
    font-size: 0.95em;
    line-height: 1.2;
    vertical-align: baseline;
}

.student-test-session-page .fill-inline-input:focus {
    outline: none;
    border-color: #818cf8;
    box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.2);
}

.student-test-session-page .answer-option {
    border-radius: 14px;
    padding: 12px;
}

.student-test-session-page .matching-answer {
    display: grid;
    gap: 10px;
}

.student-test-session-page .matching-instruction {
    margin: 0;
    color: #334155;
    font-size: 0.9rem;
    line-height: 1.45;
}

.student-test-session-page .matching-selected-label {
    margin: 0;
    border-radius: 12px;
    background: #eef2ff;
    color: #4338ca;
    padding: 10px 12px;
    font-size: 0.9rem;
    font-weight: 700;
}

.student-test-session-page .matching-board {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 120px minmax(0, 1fr);
    gap: 14px;
    border: 1px solid #e2e8f0;
    border-radius: 14px;
    background: #f8fafc;
    padding: 12px;
}

.student-test-session-page .matching-column {
    display: grid;
    gap: 10px;
    align-content: start;
}

.student-test-session-page .matching-card {
    width: 100%;
    min-height: 48px;
    border: 1px solid #d0d9e8;
    border-radius: 14px;
    background: #ffffff;
    color: #0f172a;
    padding: 8px 14px;
    text-align: left;
    font: inherit;
    font-size: 0.95rem;
    font-weight: 700;
    line-height: 1.3;
    cursor: pointer;
}

.student-test-session-page .matching-card.active {
    border-color: #a5b4fc;
    box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.18);
}

.student-test-session-page .matching-card.linked {
    border-color: #c7d2fe;
    background: #eef2ff;
}

.student-test-session-page .matching-lines {
    width: 100%;
    height: 100%;
    min-height: 168px;
}

.student-test-session-page .matching-hint {
    margin: 0;
    color: #64748b;
    font-size: 0.85rem;
}

.student-test-session-page .session-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.student-test-session-page .session-footer .actions {
    margin-top: 0;
}

.student-test-session-page .session-footer-submit {
    margin-left: auto;
}

.student-test-header {
    border-bottom: 1px solid var(--line);
    background: var(--surface);
    padding: 12px 16px;
}

.student-test-header-inner {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px 20px;
    max-width: 1100px;
    margin: 0 auto;
}

.student-test-back {
    font-weight: 650;
    color: var(--primary);
    text-decoration: none;
}

.student-test-back:hover {
    text-decoration: underline;
}

.test-type-card-selectable {
    cursor: pointer;
    text-align: left;
    width: 100%;
    border: 1px solid var(--line);
    background: var(--surface);
    border-radius: 12px;
    padding: 16px;
    font: inherit;
}

.test-type-card-selectable.mockup-active {
    border-color: #c7d2fe;
    background: #eef2ff;
}

.test-type-card-muted {
    opacity: 0.55;
}

.subject-test-wizard {
    margin-top: 8px;
}

.test-wizard-grid {
    display: grid;
    gap: 14px;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    margin-top: 12px;
}

.student-test-start-cta {
    margin-top: 16px;
    min-height: 48px;
    padding: 0 22px;
    border-radius: 12px;
    font-size: 1.02rem;
    gap: 10px;
}

.student-test-start-cta-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.25em;
    height: 1.25em;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.2);
    font-size: 0.85em;
}

.test-wizard-hint {
    margin-top: 12px;
}

.student-test-session-shell .student-nav-grid {
    display: none;
}

.student-test-result-page {
    display: grid;
    gap: 14px;
}

.student-test-result-page .result-hero {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    border: 1px solid #dbeafe;
    border-radius: 16px;
    background: linear-gradient(110deg, #efe7ff 0%, #e6f3ff 100%);
}

.student-test-result-page .result-hero-score {
    display: grid;
    gap: 4px;
    justify-items: center;
    border: 1px solid #c7d2fe;
    border-radius: 14px;
    background: #eef2ff;
    padding: 12px 16px;
    min-width: 110px;
}

.student-test-result-page .result-hero-score strong {
    font-size: 1.22rem;
    color: #3730a3;
    line-height: 1;
}

.student-test-result-page .result-hero-score span {
    font-size: 0.76rem;
    color: #475569;
}

.student-test-result-page .result-metrics {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
}

.student-test-result-page .result-metric-card {
    border: 1px solid #e2e8f0;
    border-radius: 14px;
    background: #fff;
    padding: 12px;
}

.student-test-result-page .result-metric-card span {
    display: block;
    color: #64748b;
    font-size: 0.76rem;
    font-weight: 700;
}

.student-test-result-page .result-metric-card strong {
    display: block;
    margin-top: 5px;
    color: #0f172a;
    font-size: 1.18rem;
    line-height: 1.2;
}

.student-test-result-page .result-nav-panel {
    border-radius: 16px;
}

.student-test-result-page .result-nav {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(42px, 1fr));
    gap: 8px;
    margin-top: 10px;
}

.student-test-result-page .result-nav button {
    min-height: 38px;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    background: #fff;
    color: #475569;
    font: inherit;
    font-size: 0.82rem;
    font-weight: 700;
    cursor: pointer;
}

.student-test-result-page .result-nav button.active {
    border-color: #c7d2fe;
    background: #eef2ff;
    color: #3730a3;
}

.student-test-result-page .result-nav button.answered {
    border-color: #abefc6;
    background: #ecfdf3;
    color: #147d64;
}

.student-test-result-page .result-focus-panel {
    border-radius: 16px;
}

.student-test-result-page .result-focus-list .result-row[hidden] {
    display: none !important;
}

.student-test-result-page .result-focus-list .result-row {
    margin: 0;
}

.student-test-result-page .result-choice-list {
    display: grid;
    gap: 10px;
    margin-top: 10px;
}

.student-test-result-page .result-choice-item {
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    background: #ffffff;
    padding: 10px 12px;
}

.student-test-result-page .result-choice-main {
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.student-test-result-page .result-choice-main strong {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 26px;
    height: 26px;
    border-radius: 999px;
    background: #eef2ff;
    color: #3730a3;
    font-size: 0.78rem;
}

.student-test-result-page .result-choice-main span {
    color: #0f172a;
    font-weight: 700;
    line-height: 1.35;
}

.student-test-result-page .result-choice-meta {
    display: block;
    margin-top: 6px;
    font-size: 0.76rem;
    color: #64748b;
}

.student-test-result-page .result-choice-item.is-selected-correct,
.student-test-result-page .result-fill-item.is-selected-correct {
    border-color: #abefc6;
    background: #ecfdf3;
    color: #166534;
}

.student-test-result-page .result-choice-item.is-selected-wrong,
.student-test-result-page .result-fill-item.is-selected-wrong {
    border-color: #fecdd3;
    background: #fff1f2;
    color: #9f1239;
}

.student-test-result-page .result-choice-item.is-correct-missed,
.student-test-result-page .result-fill-item.is-correct-missed {
    border-color: #c7d2fe;
    background: #eef2ff;
    color: #3730a3;
}

.student-test-result-page .result-fill-list {
    display: grid;
    gap: 8px;
    margin-top: 8px;
}

.student-test-result-page .result-fill-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    background: #f8fafc;
    padding: 8px 10px;
}

.student-test-result-page .result-fill-item.is-empty {
    color: #64748b;
}

.student-test-result-page .result-fill-key {
    font-family: "Manrope", "Nunito", sans-serif;
    font-size: 0.82rem;
    font-weight: 800;
}

.student-test-result-page .result-fill-value {
    font-size: 0.9rem;
    font-weight: 700;
}

.student-test-result-page .result-mini-lecture {
    margin-top: 12px;
}

.student-test-result-page .result-mini-lecture-toggle {
    min-height: 36px;
    border-radius: 12px;
    padding: 8px 12px;
}

.student-test-result-page .result-mini-lecture-body {
    margin-top: 8px;
}

.student-test-result-page .result-mini-lecture-body img {
    max-width: 100%;
    height: auto;
    cursor: zoom-in;
    border-radius: 8px;
    display: block;
}

.student-test-result-page .result-mini-lecture-body .katex-display {
    overflow-x: auto;
}

.img-lightbox-overlay {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(23, 32, 51, 0.88);
    padding: 24px;
}

.img-lightbox-overlay[hidden] {
    display: none !important;
}

.img-lightbox-overlay img {
    max-width: min(96vw, 1200px);
    max-height: 92vh;
    object-fit: contain;
    border-radius: 10px;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
}

.img-lightbox-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 44px;
    height: 44px;
    border: none;
    border-radius: 50%;
    background: var(--surface);
    color: var(--text);
    font-size: 1.5rem;
    line-height: 1;
    cursor: pointer;
    box-shadow: 0 4px 16px rgba(23, 32, 51, 0.15);
}

.img-lightbox-close:hover {
    background: var(--surface-muted);
}

.question-mini-lecture-preview {
    margin-top: 8px;
    padding: 12px 14px;
    border-radius: 12px;
    border: 1px solid var(--line);
    background: var(--surface-muted);
    min-height: 48px;
    font-size: 0.95rem;
    line-height: 1.45;
}

.question-mini-lecture-preview img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    cursor: zoom-in;
}

.admin-layout .question-body-row {
    margin-top: 4px;
}

.admin-layout .question-mini-lecture-section {
    margin-top: 12px;
    padding-top: 4px;
}

.admin-layout .lecture-lang-tabs {
    display: inline-flex;
    gap: 4px;
    margin-top: 12px;
    padding: 4px;
    border-radius: 12px;
    background: var(--surface-muted);
}

.admin-layout .lecture-lang-tab {
    min-height: 36px;
    border: none;
    border-radius: 8px;
    padding: 0 14px;
    background: transparent;
    cursor: pointer;
    font-size: 0.85rem;
    color: var(--muted);
}

.admin-layout .lecture-lang-tab.active {
    background: var(--surface);
    color: var(--primary);
    font-weight: 600;
}

.admin-layout .lecture-lang-panels {
    margin-top: 10px;
}

.admin-layout .lecture-lang-panel[hidden] {
    display: none !important;
}

.admin-layout .lecture-stub-banner {
    margin-top: 10px;
    padding: 10px 12px;
    border-radius: 10px;
    font-size: 0.9rem;
    line-height: 1.45;
}

.student-test-result-page .result-matching-detail {
    margin-top: 12px;
}

.student-test-result-page .matching-result-hint {
    margin: 0 0 10px;
}

.student-test-result-page .result-matching-table-wrap {
    overflow-x: auto;
    border-radius: 12px;
    border: 1px solid #e2e8f0;
}

.student-test-result-page .result-matching-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.95rem;
    background: #fff;
}

.student-test-result-page .result-matching-table th,
.student-test-result-page .result-matching-table td {
    border-bottom: 1px solid #e2e8f0;
    padding: 10px 12px;
    text-align: left;
    vertical-align: top;
}

.student-test-result-page .result-matching-table th {
    background: #f1f5f9;
    font-weight: 700;
    font-size: 0.85rem;
    text-transform: none;
    letter-spacing: 0;
}

.student-test-result-page .result-matching-table tr:last-child td {
    border-bottom: 0;
}

.student-test-result-page .result-matching-table tr.is-matching-wrong td {
    background: #fff5f5;
}

.student-test-result-page .result-focus-list pre {
    margin-top: 8px;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    background: #f8fafc;
    padding: 10px;
    white-space: pre-wrap;
}

.student-test-result-page .result-actions {
    margin-top: 16px;
}

@media (max-width: 760px) {
    .student-test-session-page .session-shell-head,
    .student-test-session-page .session-shell-right,
    .student-test-session-page .session-footer,
    .student-test-result-page .result-hero {
        display: grid;
        width: 100%;
    }

    .student-test-session-page .session-shell-right,
    .student-test-session-page .session-footer-submit {
        margin-left: 0;
    }

    .student-test-session-page .matching-board {
        grid-template-columns: 1fr;
    }

    .student-test-session-page .matching-lines {
        display: none;
    }

    .student-test-result-page .result-metrics {
        grid-template-columns: 1fr;
    }
}

.modal-layer.is-open {
    opacity: 1;
    visibility: visible;
}

.modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(15, 23, 42, 0.48);
}

.modal-card {
    position: relative;
    width: min(760px, calc(100% - 32px));
    max-height: calc(100vh - 48px);
    overflow: auto;
    margin: 24px auto;
    border-radius: 28px;
    background: #fff;
    padding: 22px;
    box-shadow: 0 24px 70px rgba(15, 23, 42, 0.22);
    transform: translateY(10px);
    transition: transform 0.22s ease;
}

.modal-layer.is-open .modal-card {
    transform: translateY(0);
}

.modal-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    margin-bottom: 16px;
}

.modal-head h2 {
    margin: 0;
    font-size: 1.35rem;
    font-weight: 700;
}

.mission-panel {
    background: #fff;
}

.mission-panel .button {
    width: fit-content;
}

.streak-panel {
    border-color: #facc15;
    background: linear-gradient(135deg, #fef3c7, #fde68a);
}

.streak-panel strong,
.streak-panel span,
.streak-panel p {
    color: #78350f;
}

.test-nav a,
.quiz-round-nav a {
    border-radius: 14px;
}

.question-panel,
.result-row {
    border-radius: 28px;
}

.answer-option {
    border-radius: 18px;
}

.answer-option:hover,
.answer-option:focus-within {
    border-color: #c7d2fe;
    background: #eef2ff;
}

.timer-box,
.score-ring {
    border-color: #fecaca;
    border-radius: 18px;
    background: #fef2f2;
}

.timer-box strong,
.score-ring strong {
    color: #dc2626;
}

.knowledge-row,
.timeline-row {
    border-radius: 18px;
}

.child-card {
    border-radius: 24px;
    background: #fff;
}

.child-card:hover,
.lecture-card:hover,
.test-type-card:hover,
.achievement-card:hover,
.achievement-java-row:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 36px rgba(15, 23, 42, 0.08);
}

.lecture-hero {
    border-radius: 24px;
    background: linear-gradient(145deg, #eef2ff 0%, #fff 58%, #ecfeff 100%);
}

/* Admin parity with admin/mockups. */
.admin-shell,
.app-shell:has(.admin-layout) {
    width: 100%;
    min-height: 100vh;
    margin: 0;
    border: 0;
    border-radius: 0;
    background: var(--bg);
    box-shadow: none;
    backdrop-filter: none;
}

.admin-shell > .topbar,
.app-shell:has(.admin-layout) > .topbar {
    display: none;
}

.admin-layout {
    display: grid;
    width: 100%;
    max-width: none;
    min-height: 100vh;
    margin: 0;
    padding: 0;
    grid-template-columns: 288px minmax(0, 1fr);
    gap: 0;
}

.admin-layout > .sidebar {
    position: sticky;
    top: 0;
    height: 100vh;
    overflow: auto;
    border: 0;
    border-right: 1px solid var(--line);
    border-radius: 0;
    background: #fff;
    padding: 16px;
}

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

.admin-brand h1 {
    margin: 0;
    font-size: 18px;
    font-weight: 750;
}

.admin-brand p {
    margin: 0;
    color: var(--muted);
    font-size: 12px;
}

.admin-layout .sidebar a {
    margin-bottom: 8px;
    border: 1px solid var(--line);
    border-radius: 16px;
    background: #fff;
    color: #475569;
    box-shadow: var(--soft-shadow);
    font-size: 14px;
    font-weight: 700;
}

.admin-layout .sidebar a:hover,
.admin-layout .sidebar a.active {
    border-color: #c7d2fe;
    background: #eef2ff;
    color: #4338ca;
}

.admin-layout > .panel {
    border: 0;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
    padding: 16px;
}

.admin-layout .page-head {
    margin-bottom: 16px;
    border: 1px solid var(--line);
    border-radius: 16px;
    background: #fff;
    padding: 16px;
    box-shadow: var(--soft-shadow);
}

.admin-layout .page-title {
    margin: 0;
    font-size: 1.45rem;
    line-height: 1.18;
}

.admin-layout .lede {
    margin: 4px 0 0;
    font-size: 0.875rem;
}

.admin-layout .panel > h1.page-title,
.admin-layout .panel > p.lede:first-of-type {
    margin-left: 0;
}

.admin-layout .data-table {
    min-width: 900px;
}

.admin-layout .table-wrap {
    border-radius: 16px;
    background: #fff;
}

.type-tabs,
.compact-tabs {
    border: 1px solid #c7d2fe;
    border-radius: 16px;
    background: #eef2ff;
    padding: 4px;
}

.type-tab {
    border: 0;
    border-radius: 12px;
    background: transparent;
}

.type-tab.active {
    background: #fff;
    color: #4338ca;
    box-shadow: var(--soft-shadow);
}

.question-type-panel {
    border-color: #dbe7ff;
    background: #fafbff;
}

.push-form {
    border-radius: 20px;
    background: #f8fafc;
}

.push-phone {
    border-radius: 28px;
}

@media (max-width: 1020px) {
    .app-shell {
        width: min(100% - 16px, 720px);
        margin: 8px auto;
        border-radius: 24px;
    }

    .topbar {
        border-radius: 24px 24px 0 0;
    }

    .hero {
        grid-template-columns: 1fr;
    }

    .feature-grid,
    .flow-grid,
    .auth-grid {
        grid-template-columns: 1fr;
    }

    .admin-layout {
        grid-template-columns: 1fr;
    }

    .admin-layout > .sidebar {
        position: relative;
        height: auto;
        border-right: 0;
        border-bottom: 1px solid var(--line);
    }

    .option-row,
    .pair-row,
    .fill-row {
        grid-template-columns: 1fr;
    }

    .test-type-grid.mockup {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .test-flow-filters,
    .test-flow-steps {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 760px) {
    .app-shell {
        width: 100%;
        min-height: 100vh;
        margin: 0;
        border-radius: 0;
    }

    .topbar {
        border-radius: 0;
    }

    .student-header {
        padding: 12px 14px;
    }

    .student-header-row {
        align-items: flex-start;
    }

    .student-header-actions {
        gap: 6px;
    }

    .student-header .language-select-wrap {
        min-height: 38px;
        padding: 2px 6px;
    }

    .student-header .language-select {
        max-width: 96px;
        padding: 0 2px;
        font-size: 0.72rem;
    }

    .student-logout-button {
        min-height: 38px;
        padding: 0 9px;
    }

    .student-logout-button span {
        display: none;
    }

    .student-nav-grid {
        gap: 5px;
        border-radius: 18px;
        padding: 6px;
    }

    .student-nav-grid a,
    .student-nav-grid button {
        min-height: 52px;
        border-radius: 13px;
        padding: 6px 2px;
        font-size: 0.62rem;
    }

    .student-nav-grid .lucide-icon {
        width: 18px;
        height: 18px;
    }

    .brand-copy small {
        display: none;
    }

    .nav {
        overflow-x: auto;
        flex-wrap: nowrap;
        padding-bottom: 2px;
    }

    .nav a,
    .nav .link-button {
        white-space: nowrap;
    }

    .language-select-wrap {
        flex: 0 0 auto;
    }

    .student-home {
        gap: 14px;
    }

    .student-home-hero {
        border-radius: 24px;
        padding: 20px;
    }

    .student-home-grid,
    .student-route-grid,
    .student-stat-grid {
        grid-template-columns: 1fr;
    }

    .test-type-grid.mockup {
        grid-template-columns: 1fr;
    }

    .student-route-card,
    .student-mission-card,
    .student-word-card,
    .student-last-card,
    .student-streak-card,
    .student-progress-panel {
        border-radius: 22px;
    }

    .modal-card {
        width: calc(100% - 20px);
        margin: 10px auto;
        padding: 16px;
        border-radius: 22px;
    }

    .modal-head {
        align-items: flex-start;
        flex-direction: column;
    }

    .page {
        padding: 18px 14px 32px;
    }

    .panel {
        padding: 18px;
        border-radius: 22px;
    }

    .page-title {
        font-size: clamp(1.35rem, 7vw, 1.8rem);
    }

    .filter-bar {
        border-radius: 20px;
    }

    .admin-layout > .panel {
        padding: 14px;
    }

    .admin-layout .sidebar {
        padding: 14px;
    }

    .admin-brand {
        margin-bottom: 14px;
    }

    .admin-layout .sidebar a {
        display: inline-flex;
        margin: 0 6px 8px 0;
    }

    .auth-register-grid {
        grid-template-columns: 1fr;
    }

.auth-register-span {
        grid-column: auto;
    }
}

/* Stage13 final strict overrides (must stay at file end). */
body {
    font-family: "Nunito", "Manrope", "Segoe UI", ui-sans-serif, system-ui, sans-serif;
    font-weight: 500;
    line-height: 1.45;
}

.app-shell {
    border-radius: 22px;
    backdrop-filter: none;
    box-shadow: 0 16px 40px rgba(15, 23, 42, 0.08);
}

.topbar,
.student-header {
    backdrop-filter: none;
}

.brand-mark {
    border-radius: 12px;
    box-shadow: none;
}

.brand-mark .lucide-icon {
    width: 20px;
    height: 20px;
}

.page-title,
.hero h1 {
    font-family: "Manrope", "Nunito", "Segoe UI", ui-sans-serif, system-ui, sans-serif;
    font-size: clamp(1.32rem, 2vw, 1.74rem);
    line-height: 1.2;
    font-weight: 700;
}

.section-title,
h2 {
    font-size: 1rem;
    font-weight: 700;
}

.lede {
    font-size: 0.95rem;
    line-height: 1.55;
}

.panel,
.feature-card,
.warm-card,
.program-band,
.faq-card,
.student-route-card,
.child-card,
.metric,
.modal-card,
.button,
.type-tabs,
.type-tab,
.auth-panel {
    border-radius: 12px;
    box-shadow: none;
}

.metric,
.stat,
.warm-card,
.program-band,
.student-hero-panel,
.analytics-hero,
.result-summary,
.tests-hero,
.student-home-hero {
    background: #fff;
}

.button {
    font-size: 0.875rem;
    font-weight: 700;
}

.button:hover {
    transform: none;
}

.type-tabs {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 6px;
    padding: 4px;
}

.type-tab,
.type-tabs a.type-tab {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 38px;
    line-height: 1;
}

.auth-grid > section > .page-title {
    font-size: clamp(1.24rem, 1.9vw, 1.5rem);
}

.auth-panel .form {
    gap: 12px;
}

.student-profile-page .page-title {
    font-size: clamp(1.28rem, 2.1vw, 1.64rem);
}

.student-home-hero h1,
.tests-hero h1 {
    font-size: clamp(1.18rem, 1.8vw, 1.52rem);
}

.modal-layer {
    position: fixed;
    inset: 0;
    z-index: 120;
    display: grid;
    place-items: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.18s ease, visibility 0.18s ease;
}

.modal-layer[hidden] {
    display: none;
}

.modal-layer.is-open {
    opacity: 1;
    visibility: visible;
}

.modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(15, 23, 42, 0.55);
}

.modal-card {
    width: min(680px, calc(100% - 24px));
    max-height: calc(100vh - 30px);
    margin: 0;
    padding: 18px;
    transform: translateY(8px);
}

.modal-layer.is-open .modal-card {
    transform: translateY(0);
}

.session-page {
    display: grid;
    gap: 14px;
}

.session-form {
    display: grid;
    gap: 12px;
}

.session-page .question-panel[hidden] {
    display: none !important;
}

.session-actions .actions {
    gap: 8px;
}

#questionNav a.active {
    border-color: #c7d2fe;
    background: #eef2ff;
    color: #3730a3;
}

#questionNav a.answered {
    border-color: #abefc6;
    background: #ecfdf3;
    color: #147d64;
}

@media (max-width: 760px) {
    .app-shell {
        border-radius: 0;
    }

    .modal-card {
        width: calc(100% - 14px);
        padding: 14px;
    }

    .session-actions .actions {
        display: grid;
        grid-template-columns: 1fr 1fr;
    }
}

/* Stage 13 admin deep-screen parity overrides. */
.admin-shell,
.admin-shell.app-shell,
.app-shell:has(.admin-layout) {
    width: 100%;
    min-height: 100vh;
    margin: 0;
    border: 0;
    border-radius: 0;
    background: #f8fafc;
    box-shadow: none;
}

.admin-layout {
    width: 100%;
    max-width: none;
    min-height: 100vh;
    padding: 0;
    grid-template-columns: 288px minmax(0, 1fr);
    gap: 0;
}

.admin-layout > .sidebar {
    height: 100vh;
    border-right: 1px solid #e2e8f0;
    background: #fff;
    padding: 16px;
}

.admin-nav {
    display: grid;
    gap: 8px;
}

.admin-layout .sidebar a {
    display: flex;
    align-items: center;
    min-height: 44px;
    margin: 0;
    border: 1px solid #e2e8f0;
    border-radius: 16px;
    background: #fff;
    padding: 0 12px;
    color: #475569;
    font-size: 0.875rem;
    font-weight: 700;
    line-height: 1.2;
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.05);
}

.admin-layout .sidebar a:hover,
.admin-layout .sidebar a.active {
    border-color: #c7d2fe;
    background: #eef2ff;
    color: #4338ca;
}

.admin-layout > .panel {
    max-width: none;
    padding: 16px;
    border: 0;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
}

.admin-layout .page-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    margin: 0 0 16px;
    border: 1px solid #e2e8f0;
    border-radius: 16px;
    background: #fff;
    padding: 16px;
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.05);
}

.admin-layout .page-title {
    margin: 0;
    font-size: 1.375rem;
    font-weight: 700;
    line-height: 1.2;
}

.admin-layout .lede {
    max-width: 860px;
    margin: 4px 0 0;
    color: #64748b;
    font-size: 0.8125rem;
    line-height: 1.45;
}

.admin-layout .row-actions,
.admin-layout .actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.admin-layout .button {
    min-height: 38px;
    border-radius: 12px;
    padding: 0 12px;
    font-size: 0.8125rem;
    font-weight: 700;
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.05);
}

.admin-layout .button.primary {
    background: #4f46e5;
}

.admin-layout .button.danger {
    border-color: #fecaca;
    background: #fef2f2;
    color: #991b1b;
}

.admin-layout .filter-bar,
.admin-layout .form,
.admin-layout .subpanel,
.admin-layout .feature-card,
.admin-layout .stat,
.admin-layout .metric,
.admin-layout .health-card,
.admin-layout .lecture-card,
.admin-layout .push-form,
.admin-layout .push-preview,
.admin-layout .question-type-panel {
    border: 1px solid #e2e8f0;
    border-radius: 16px;
    background: #fff;
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.05);
}

.admin-layout .filter-bar {
    display: flex;
    align-items: end;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 16px;
    padding: 12px;
}

.admin-layout .filter-bar .field.compact {
    min-width: 150px;
    flex: 1 1 150px;
}

.admin-layout .form,
.admin-layout .subpanel,
.admin-layout .feature-card,
.admin-layout .push-form,
.admin-layout .push-preview {
    padding: 16px;
}

.admin-layout .form.wide-form {
    max-width: none;
}

.admin-layout .field span,
.admin-layout .label {
    color: #334155;
    font-size: 0.8125rem;
    font-weight: 700;
}

.admin-layout input,
.admin-layout select,
.admin-layout textarea {
    border-radius: 12px;
    border-color: #e2e8f0;
    font-size: 0.875rem;
}

.admin-layout textarea {
    min-height: 108px;
}

.admin-layout .meta-grid,
.admin-layout .dashboard-kpis,
.admin-layout .flow-grid {
    gap: 12px;
}

.admin-layout .metric,
.admin-layout .stat {
    padding: 12px;
}

.admin-layout .metric strong,
.admin-layout .stat b {
    display: block;
    margin: 0 0 4px;
    color: #0f172a;
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1.1;
}

.admin-layout .metric span,
.admin-layout .stat span,
.admin-layout .stat p,
.admin-layout .muted-line {
    color: #64748b;
    font-size: 0.8125rem;
}

.admin-layout .dashboard-main {
    gap: 12px;
}

.admin-layout .table-wrap {
    overflow: auto;
    border: 1px solid #e2e8f0;
    border-radius: 16px;
    background: #fff;
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.05);
}

.admin-layout .data-table {
    min-width: 900px;
    border-collapse: collapse;
    font-size: 0.8125rem;
}

.admin-layout .data-table th,
.admin-layout .data-table td {
    padding: 12px 10px;
    border-bottom: 1px solid #e2e8f0;
    vertical-align: top;
}

.admin-layout .data-table th {
    background: #f8fafc;
    color: #475569;
    font-size: 0.75rem;
    font-weight: 800;
    text-transform: none;
    letter-spacing: 0;
}

.admin-layout .badge {
    border-radius: 999px;
    padding: 4px 9px;
    font-size: 0.6875rem;
    font-weight: 800;
}

.admin-layout .notice,
.admin-layout .empty-state {
    border-radius: 12px;
}

.admin-layout .type-tabs,
.admin-layout .compact-tabs {
    display: inline-flex;
    width: fit-content;
    border-radius: 12px;
    background: #eef2ff;
    padding: 4px;
}

.admin-layout .type-tab {
    min-height: 34px;
    border-radius: 8px;
    padding: 0 10px;
    color: #475569;
    font-size: 0.75rem;
}

.admin-layout .type-tab.active {
    background: #fff;
    color: #4338ca;
}

.admin-layout .question-type-panel {
    margin-top: 12px;
    padding: 12px;
    border-color: #dbe7ff;
    background: #fafbff;
}

.admin-layout .topic-tree-list,
.admin-layout .topic-tree-list ul {
    display: grid;
    gap: 8px;
    margin: 0;
    padding-left: 18px;
    list-style: none;
}

.admin-layout .topic-tree-list details {
    overflow: hidden;
    border: 1px solid #dbe4ee;
    border-radius: 12px;
    background: #fff;
}

.admin-layout .topic-tree-list summary {
    display: grid;
    gap: 2px;
    padding: 10px 12px;
    cursor: pointer;
    background: #f8fafc;
}

.admin-layout .topic-tree-list summary a {
    color: #1e293b;
    font-weight: 800;
}

.admin-layout .skill-row,
.admin-layout .option-row,
.admin-layout .pair-row,
.admin-layout .fill-row,
.admin-layout .attachment-row {
    border-radius: 12px;
    background: #f8fafc;
}

.admin-layout .option-row.is-soft-deleted {
    display: none;
}

.admin-layout .option-label {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    min-height: 38px;
    border-radius: 10px;
    background: #eef2ff;
    color: #3730a3;
}

.admin-layout .option-delete-button,
.admin-layout .fill-delete-button {
    width: 38px;
    padding: 0;
    flex: 0 0 auto;
}

.admin-layout .compact-actions {
    margin-top: 10px;
}

.admin-layout .health-card-grid {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 12px;
}

.admin-layout .push-workbench {
    gap: 16px;
}

.admin-layout .push-phone {
    border-radius: 28px;
    box-shadow: none;
}

@media (max-width: 1020px) {
    .admin-layout {
        grid-template-columns: 1fr;
    }

    .admin-layout > .sidebar {
        position: relative;
        height: auto;
        border-right: 0;
        border-bottom: 1px solid #e2e8f0;
    }

    .admin-nav {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
    }

    .admin-layout .sidebar a {
        min-height: 38px;
    }
}

@media (max-width: 760px) {
    .admin-layout > .panel {
        padding: 12px;
    }

    .admin-layout .page-head,
    .admin-layout .filter-bar,
    .admin-layout .form,
    .admin-layout .subpanel,
    .admin-layout .feature-card,
    .admin-layout .push-form,
    .admin-layout .push-preview {
        padding: 12px;
        border-radius: 14px;
    }

    .admin-layout .page-head {
        align-items: stretch;
        flex-direction: column;
    }

    .admin-layout .row-actions,
    .admin-layout .actions {
        display: grid;
        grid-template-columns: 1fr;
        width: 100%;
    }

    .admin-layout .button {
        width: 100%;
        justify-content: center;
    }

    .admin-layout .filter-bar .field.compact {
        min-width: 100%;
    }
}

/* Final Stage 13 public/auth/parent scope. Kept at EOF so older broad overrides do not win. */
.topbar {
    gap: 16px;
}

.topbar .nav {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    border: 1px solid var(--line);
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.96);
    padding: 4px;
}

.topbar .nav a,
.topbar .nav .link-button {
    min-height: 34px;
    border-radius: 11px;
    padding: 0 11px;
}

.topbar .language-select-wrap {
    min-height: 34px;
    border-radius: 11px;
    box-shadow: none;
}

.public-home {
    margin-top: 24px;
}

.public-home .hero {
    padding-top: 18px;
    gap: 28px;
}

.public-home .hero h1 {
    max-width: 560px;
    font-size: clamp(1.7rem, 3.2vw, 2.65rem);
    line-height: 1.08;
    font-weight: 800;
}

.public-home .hero .lede {
    max-width: 560px;
    margin-top: 14px;
    font-size: 1rem;
}

.public-home .section-head {
    display: grid;
    gap: 8px;
}

.public-home .section-head h2 {
    margin: 0;
    font-size: clamp(1.25rem, 2vw, 1.7rem);
}

.public-home .feature-card,
.public-home .warm-card,
.public-home .faq-card {
    min-height: 100%;
}

.public-home .public-reviews .feature-card {
    display: grid;
    align-content: space-between;
    gap: 12px;
}

.public-home .public-reviews h3 {
    margin: 0;
    color: var(--text);
    font-size: 0.95rem;
}

.public-home .public-faq .feature-grid,
.public-home .program-band .feature-grid {
    margin-top: 16px;
}

.site-footer {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    align-items: center;
    border-top: 1px solid var(--line);
    padding: 16px 24px;
    color: var(--muted);
    font-size: 0.82rem;
}

.site-footer p {
    margin: 0;
}

.site-footer div {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
}

.auth-page {
    align-items: center;
}

.auth-page .auth-copy {
    display: grid;
    gap: 14px;
}

.auth-page .auth-copy .warm-card {
    max-width: 520px;
}

.auth-page .auth-panel {
    padding: 22px;
}

.auth-page .compact-tabs {
    width: 100%;
    margin: 0 0 16px;
    align-items: stretch;
}

.auth-page .type-tab,
.auth-page .type-tabs a.type-tab {
    width: 100%;
    min-width: 0;
    margin: 0;
    padding: 0 10px;
    text-align: center;
    white-space: nowrap;
}

.lecture-hidden-input {
    display: none;
}

.lecture-editor-page {
    display: grid;
    gap: 14px;
}

.lecture-editor-page .compact-head {
    margin-bottom: 12px;
}

.lecture-meta-grid {
    margin-top: 8px;
}

.lecture-details-grid {
    grid-template-columns: minmax(0, 1fr) minmax(300px, 380px);
    gap: 14px;
}

.lecture-form-actions {
    margin-top: 10px;
}

.lecture-rich-editor {
    min-height: 320px;
    border: 1px solid #d6dceb;
    border-radius: 12px;
    background: #fff;
    overflow: hidden;
}

.lecture-rich-editor .ql-toolbar.ql-snow {
    border: 0;
    border-bottom: 1px solid #e5eaf5;
    background: #f8faff;
}

.lecture-rich-editor .ql-container.ql-snow {
    border: 0;
    min-height: 260px;
    font-size: 0.95rem;
    line-height: 1.55;
}

.lecture-rich-editor .ql-editor {
    min-height: 260px;
}

.lecture-content-shell .notice {
    margin-bottom: 0;
}

.lecture-tab-panel {
    display: none;
}

.lecture-tab-panel.active {
    display: block;
}

.lecture-attachments-stack {
    margin-top: 12px;
}

.attachment-item {
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    padding: 10px;
    background: #f8fafc;
}

.attachment-item.has-error {
    border-color: #fecaca;
    background: #fff7f7;
}

.lecture-attachment-grid {
    grid-template-columns: minmax(0, 1fr) 160px minmax(180px, 220px);
    gap: 10px;
}

.lecture-attachment-url-field {
    grid-column: 1 / -1;
}

#manual-checkpoint-candidates,
#manual-checkpoint-selected {
    margin-top: 10px;
    display: grid;
    gap: 8px;
}

#manual-checkpoint-candidates .notice,
#manual-checkpoint-selected .notice {
    margin: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.attachment-preview {
    margin-top: 8px;
    border: 1px dashed #d0d8e7;
    border-radius: 10px;
    padding: 10px;
    background: #fff;
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: flex-start;
}

.attachment-preview-image {
    max-height: 140px;
    width: auto;
    max-width: 100%;
    border-radius: 8px;
}

.attachment-preview-video {
    width: 100%;
    max-height: 180px;
    border-radius: 8px;
}

.attachment-feedback {
    margin: 8px 0 0;
}

.lecture-client-error {
    margin-bottom: 0;
}

.lectures-list-page {
    display: grid;
    gap: 14px;
}

.lecture-list-stats {
    padding: 14px;
}

.lecture-list-stats .metric {
    display: grid;
    gap: 6px;
    border: 1px solid #e2e8f0;
    background: #f8fafc;
}

.lecture-list-stats .metric strong {
    font-size: 1.45rem;
}

.lecture-query-field {
    min-width: 240px !important;
}

.lecture-row-actions form {
    width: auto;
}

.lecture-data-table td {
    min-width: 0;
}

.lecture-data-table td:nth-child(2) {
    min-width: 230px;
}

.lecture-data-table td:last-child {
    min-width: 280px;
}

.auth-page .section-title {
    margin-top: 0;
}

.auth-page .button.primary {
    width: 100%;
    justify-content: center;
}

.auth-page .muted-line {
    margin: 2px 0 0;
    font-size: 0.8rem;
}

.access-denied-page .actions {
    margin-top: 20px;
}

.access-denied-page .auth-panel .muted-line + .muted-line {
    margin-top: 12px;
}

.parent-page,
.parent-detail-page,
.parent-profile-page {
    align-items: start;
}

.parent-page > .panel,
.parent-detail-page > .panel,
.parent-profile-page > .panel,
.parent-connect-panel {
    border-radius: 22px;
    padding: 22px;
}

.parent-hero,
.parent-detail-head,
.parent-profile-page .page-head {
    border: 1px solid #dbeafe;
    border-radius: 22px;
    background: linear-gradient(135deg, #e6f3ff 0%, #efe7ff 100%);
    padding: 20px;
}

.parent-hero .page-title,
.parent-detail-head .page-title,
.parent-profile-page .page-title {
    margin-top: 8px;
    font-size: clamp(1.35rem, 2.3vw, 1.95rem);
    line-height: 1.12;
}

.parent-page .section-head {
    display: grid;
    gap: 6px;
    margin-top: 24px;
}

.parent-page .section-head .section-title {
    margin: 0;
}

.parent-page .child-list {
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.parent-page .child-card {
    grid-template-columns: 1fr;
    align-items: start;
    gap: 14px;
    border-color: #edf2f7;
    padding: 18px;
}

.parent-page .child-card .row-actions {
    justify-content: space-between;
    gap: 10px;
}

.parent-page .child-card dl {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
}

.parent-page .child-card dl > div,
.parent-detail-page .metric,
.parent-profile-page .profile-summary dl {
    border-radius: 14px;
    background: #f8fafc;
    padding: 10px;
}

.parent-page .child-card .button {
    justify-content: center;
}

.parent-page .feature-grid {
    margin-top: 22px;
}

.parent-page .feature-card {
    display: grid;
    gap: 8px;
    align-content: start;
}

.parent-connect-panel {
    position: sticky;
    top: 92px;
}

.parent-connect-panel .compact-tabs {
    margin-top: 0;
}

.parent-connect-panel .form {
    max-width: none;
}

.parent-connect-panel .button {
    width: 100%;
    justify-content: center;
}

.parent-detail-page .page-head {
    margin-bottom: 22px;
}

.parent-detail-page .page-head a {
    display: inline-flex;
    margin-bottom: 10px;
    font-weight: 700;
}

.parent-detail-page .meta-grid {
    margin-top: 16px;
}

.parent-detail-page .profile-summary .badge,
.parent-profile-page .profile-summary .badge {
    margin-bottom: 10px;
}

.parent-detail-page .link-code-panel {
    align-items: center;
    border: 1px solid #dbeafe;
    border-radius: 18px;
    background: linear-gradient(135deg, #eef2ff 0%, #fff 52%, #ecfeff 100%);
    padding: 14px;
}

.parent-detail-page .link-code-panel code {
    display: block;
    margin-top: 8px;
    font-size: 1.35rem;
    letter-spacing: 0.18em;
}

@media (max-width: 1020px) {
    .topbar {
        align-items: flex-start;
        flex-direction: column;
    }

    .topbar .nav {
        width: 100%;
        overflow-x: auto;
        justify-content: flex-start;
    }

    .parent-connect-panel {
        position: static;
    }
}

@media (max-width: 760px) {
    .public-home {
        margin-top: 18px;
    }

    .public-home .hero h1 {
        font-size: clamp(1.55rem, 8vw, 2.05rem);
    }

    .site-footer {
        align-items: flex-start;
        flex-direction: column;
        padding: 16px;
    }

    .auth-page .auth-panel,
    .parent-page > .panel,
    .parent-detail-page > .panel,
    .parent-profile-page > .panel,
    .parent-connect-panel {
        padding: 18px;
    }
}

/* Stage13 absolute final overrides: strict typography + student parity on tests/analytics/quiz. */
body {
    font-family: "Manrope", "Nunito", "Segoe UI", ui-sans-serif, system-ui, sans-serif;
    font-weight: 500;
    line-height: 1.42;
}

.page-title,
.hero h1,
.student-home-hero h1,
.tests-hero h1 {
    font-family: "Manrope", "Nunito", "Segoe UI", ui-sans-serif, system-ui, sans-serif;
    font-weight: 700;
    letter-spacing: 0;
}

.page-title,
.hero h1 {
    font-size: clamp(1.2rem, 1.85vw, 1.56rem);
    line-height: 1.18;
}

.section-title,
h2 {
    font-size: 0.96rem;
    line-height: 1.25;
    font-weight: 700;
}

.lede {
    font-size: 0.9rem;
    line-height: 1.5;
}

.brand-copy strong {
    font-weight: 700;
}

.brand-copy small,
.muted-line {
    font-size: 0.78rem;
}

.student-tests-page,
.student-analytics-page,
.student-quiz-page,
.quiz-results-page {
    display: grid;
    gap: 14px;
}

.tests-hero,
.analytics-hero,
.quiz-hero-panel,
.result-summary {
    border: 1px solid #dbeafe;
    border-radius: 16px;
    background: linear-gradient(110deg, #efe7ff 0%, #e6f3ff 100%);
}

.tests-hero h1,
.analytics-hero .page-title,
.quiz-hero-panel .page-title,
.result-summary .page-title {
    font-size: clamp(1.16rem, 1.8vw, 1.5rem);
}

.test-type-grid.mockup {
    gap: 10px;
}

.test-type-card {
    border-radius: 14px;
    padding: 14px;
}

.test-type-card h2 {
    font-size: 0.94rem;
    margin: 8px 0 4px;
}

.test-flow-steps,
.test-flow-filters {
    gap: 8px;
}

.test-flow-step,
.test-flow-filters .field,
.test-flow-hint {
    border-radius: 12px;
}

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

.quiz-hub-cards {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
}

.quiz-hub-cards .panel {
    min-height: 118px;
}

.quiz-lobby-panel {
    border: 1px solid #dbeafe;
    background: #fbfdff;
}

.quiz-room-head .page-title {
    margin-bottom: 4px;
}

.quiz-code-box {
    border-radius: 14px;
    min-width: 132px;
}

.participant-row,
.quiz-result-card,
.result-row,
.knowledge-row,
.timeline-row {
    border-radius: 14px;
}

.question-panel,
.answer-option {
    border-radius: 14px;
}

.data-table th {
    font-size: 0.74rem;
}

.button,
.student-nav-grid a,
.student-nav-grid button,
.type-tab,
.type-tabs a.type-tab {
    font-weight: 700;
}

@media (max-width: 1020px) {
    .analytics-grid,
    .quiz-hub-cards {
        grid-template-columns: 1fr;
    }
}

/*
 * Модалка «Мои достижения»: в файле несколько блоков `.modal-card` с width ~680px (последний выигрывает),
 * из‑за чего сетка 3×1 сжимала текст. Переопределяем только для `.achievements-dialog` + «наградный» визуал.
 */
.modal-card.achievements-dialog {
    width: min(1180px, calc(100vw - 28px));
    max-width: min(1180px, calc(100vw - 28px));
    padding: 22px 26px 28px;
    border-radius: 22px;
    border: 1px solid rgba(234, 179, 8, 0.22);
    background:
        radial-gradient(120% 80% at 10% -10%, rgba(254, 243, 199, 0.75) 0%, transparent 55%),
        radial-gradient(90% 60% at 100% 0%, rgba(220, 252, 231, 0.5) 0%, transparent 50%),
        linear-gradient(180deg, #fffef9 0%, #fff 42%, #f8fafc 100%);
    box-shadow:
        0 28px 64px rgba(15, 23, 42, 0.16),
        0 0 0 1px rgba(255, 255, 255, 0.65) inset;
}

.modal-card.achievements-dialog .modal-head {
    padding-bottom: 4px;
    margin-bottom: 18px;
    border-bottom: 1px solid rgba(234, 179, 8, 0.2);
}

.modal-card.achievements-dialog .modal-head h2 {
    font-size: 1.22rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: #13224a;
    text-shadow: 0 1px 0 rgba(255, 255, 255, 0.95);
}

.modal-card.achievements-dialog .achievement-java-grid {
    width: 100%;
    min-width: 0;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px 16px;
}

.modal-card.achievements-dialog .achievement-java-row {
    min-width: 0;
    max-width: 100%;
    width: 100%;
    align-items: center;
    padding: 12px 14px;
    gap: 12px;
    border-radius: 16px;
    border: 1px solid rgba(148, 163, 184, 0.35);
    background: linear-gradient(145deg, #fff 0%, #f8fafc 100%);
    box-shadow: 0 6px 20px rgba(15, 23, 42, 0.05);
}

.modal-card.achievements-dialog .achievement-java-row.is-earned {
    border-color: rgba(234, 179, 8, 0.45);
    background: linear-gradient(145deg, #fffbeb 0%, #fff 55%, #f0fdf4 100%);
    box-shadow:
        0 8px 26px rgba(234, 179, 8, 0.12),
        0 0 0 1px rgba(255, 255, 255, 0.8) inset;
}

.modal-card.achievements-dialog .achievement-java-row.is-locked {
    opacity: 0.96;
}

.modal-card.achievements-dialog .achievement-java-icon-ring {
    width: 54px;
    height: 54px;
    padding: 2px;
}

.modal-card.achievements-dialog .achievement-java-img {
    width: 50px;
    height: 50px;
}

.modal-card.achievements-dialog .achievement-java-check {
    width: 19px;
    height: 19px;
}

.modal-card.achievements-dialog .achievement-java-copy {
    flex: 1 1 0;
    min-width: 0;
    overflow-wrap: break-word;
    word-break: normal;
}

.modal-card.achievements-dialog .achievement-java-title {
    margin: 0 0 4px;
    font-size: 0.9rem;
    font-weight: 800;
    line-height: 1.28;
}

.modal-card.achievements-dialog .achievement-java-desc {
    margin: 0 0 6px;
    font-size: 0.8rem;
    line-height: 1.38;
    color: #475569;
}

.modal-card.achievements-dialog .achievement-java-meter {
    margin: 0;
    font-size: 0.76rem;
    font-weight: 700;
}

@media (max-width: 960px) {
    .modal-card.achievements-dialog .achievement-java-grid {
        grid-template-columns: 1fr;
    }
}

/* ===== PWA: Install banner (только мобильные) ===== */

/*
 * Баннер установки PWA. На десктопе скрыт всегда (даже если JS ошибся).
 * На мобильных — fixed внизу экрана, не внутри topbar (клики и вёрстка).
 */
.pwa-install-banner[hidden] {
    display: none !important;
}

/* На десктопе баннер не показываем никогда */
@media (min-width: 901px) {
    .pwa-install-banner {
        display: none !important;
    }
}

.pwa-install-banner {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 9999;
    padding: 12px 16px calc(12px + env(safe-area-inset-bottom, 0px));
    background: #e8f0fe;
    border-top: 1px solid #c2d4f8;
    box-shadow: 0 -4px 24px rgba(15, 23, 42, 0.12);
    pointer-events: auto;
    display: none;
}

.pwa-install-banner.is-visible:not([hidden]) {
    display: block;
    animation: pwa-banner-slide-up 0.25s ease;
}

.pwa-install-banner-inner {
    display: flex;
    align-items: center;
    gap: 10px;
    max-width: 720px;
    margin: 0 auto;
    flex-wrap: wrap;
}

@keyframes pwa-banner-slide-up {
    from { opacity: 0; transform: translateY(12px); }
    to   { opacity: 1; transform: translateY(0); }
}

.pwa-install-banner-text {
    flex: 1 1 180px;
    font-size: 0.875rem;
    font-weight: 600;
    color: #1e40af;
    line-height: 1.35;
}

.pwa-install-btn {
    padding: 8px 18px;
    font-size: 0.85rem;
    white-space: nowrap;
    flex-shrink: 0;
}

.pwa-install-dismiss {
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px 12px;
    min-width: 44px;
    min-height: 44px;
    font-size: 1.25rem;
    color: #6b7280;
    line-height: 1;
    border-radius: 8px;
    flex-shrink: 0;
    pointer-events: auto;
    touch-action: manipulation;
}

.pwa-install-dismiss:hover {
    background: rgba(0, 0, 0, 0.06);
    color: #374151;
}

/* Обёртка шапки: topbar + баннер (баннер fixed, не влияет на высоту) */
.site-header {
    display: block;
}

/* ===== PWA: Push subscribe section (profile page) ===== */

.push-subscribe-section {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 4px;
}

.push-subscribe-hint {
    font-size: 0.82rem;
    color: #6b7280;
    margin: 0;
}

#pwa-push-subscribe-btn {
    align-self: flex-start;
}

#pwa-push-subscribe-btn.is-subscribed {
    background: #d1fae5;
    color: #065f46;
    border-color: #6ee7b7;
}