/* ═══════════════════════════════════════════════════════════════════════════════
   11+ Creative Writing AI Learning Platform — Demo Stylesheet
   ═══════════════════════════════════════════════════════════════════════════════ */

/* ─── CSS Variables ──────────────────────────────────────────────────────── */
:root {
    --color-primary: #2563EB;
    --color-primary-light: #DBEAFE;
    --color-primary-dark: #1D4ED8;
    --color-green: #059669;
    --color-green-light: #D1FAE5;
    --color-orange: #EA580C;
    --color-orange-light: #FFF7ED;
    --color-red: #DC2626;
    --color-red-light: #FEE2E2;
    --color-purple: #7C3AED;
    --color-purple-light: #EDE9FE;
    --color-blue: #2563EB;
    --color-blue-light: #DBEAFE;

    --color-bg: #F8FAFC;
    --color-surface: #FFFFFF;
    --color-border: #E2E8F0;
    --color-text: #1E293B;
    --color-text-secondary: #64748B;
    --color-text-muted: #94A3B8;

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.05);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.04);

    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-serif: 'Merriweather', Georgia, serif;
}

/* ─── Reset & Base ───────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-sans);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ─── Navigation ─────────────────────────────────────────────────────────── */
.navbar {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 60px;
}

.nav-brand {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--color-text);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-brand small {
    font-weight: 400;
    color: var(--color-text-muted);
    font-size: 0.75rem;
    background: var(--color-orange-light);
    color: var(--color-orange);
    padding: 2px 8px;
    border-radius: 10px;
}

.nav-icon { font-size: 1.3rem; }

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

.nav-link {
    text-decoration: none;
    color: var(--color-text-secondary);
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.15s;
}

.nav-link:hover {
    background: var(--color-primary-light);
    color: var(--color-primary);
}

/* ─── Navbar User Section ──────────────────────────────────────────────────── */
.nav-user {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-left: 16px;
    padding-left: 16px;
    border-left: 1px solid var(--color-border);
}

.nav-user-name {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-text);
    white-space: nowrap;
}

.nav-logout {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    padding: 4px 10px;
}

.nav-logout:hover {
    color: var(--color-red);
    background: var(--color-red-light);
}

@media (max-width: 640px) {
    .nav-user {
        border-left: none;
        margin-left: auto;
        padding-left: 0;
    }
    .nav-user-name {
        display: none;
    }
}

/* ─── Auth Pages (Login / Register) ───────────────────────────────────────── */
.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #EEF2FF 0%, #DBEAFE 50%, #F0FDF4 100%);
    padding: 24px;
}

.auth-container {
    width: 100%;
    max-width: 440px;
}

.auth-header {
    text-align: center;
    margin-bottom: 28px;
}

.auth-icon {
    font-size: 3rem;
    display: block;
    margin-bottom: 8px;
}

.auth-header h1 {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--color-primary-dark);
    margin-bottom: 4px;
}

.auth-subtitle {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
}

.auth-card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 32px 28px;
}

.auth-card h2 {
    font-size: 1.2rem;
    text-align: center;
    margin-bottom: 20px;
    color: var(--color-text);
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.form-group label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-text);
}

.form-group input {
    padding: 11px 14px;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    font-family: var(--font-sans);
    transition: border-color 0.15s;
    background: var(--color-bg);
}

.form-group input:focus {
    outline: none;
    border-color: var(--color-primary);
    background: var(--color-surface);
}

.form-hint {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-top: 2px;
}

.btn-block {
    width: 100%;
    justify-content: center;
    padding: 14px;
    font-size: 1rem;
}

.btn-ghost {
    background: var(--color-bg);
    color: var(--color-text-secondary);
    border: 2px dashed var(--color-border);
}

.btn-ghost:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: var(--color-primary-light);
}

.auth-links {
    margin-top: 20px;
    text-align: center;
    padding-top: 16px;
    border-top: 1px solid var(--color-border);
}

.auth-links p {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-bottom: 10px;
}

.auth-divider {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 20px 0;
}

.auth-divider::before,
.auth-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--color-border);
}

.auth-divider span {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.guest-note {
    text-align: center;
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-top: 8px;
}

.alert {
    padding: 12px 16px;
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    margin-bottom: 16px;
    font-weight: 500;
}

.alert-error {
    background: var(--color-red-light);
    color: var(--color-red);
    border: 1px solid #FECACA;
}

/* ─── Main Content ───────────────────────────────────────────────────────── */
.main-content {
    flex: 1;
    max-width: 1280px;
    margin: 0 auto;
    padding: 32px 24px;
    width: 100%;
}

/* ─── Dashboard Hero ────────────────────────────────────────────────────── */
.dashboard-hero {
    text-align: center;
    padding: 48px 24px 32px;
    background: linear-gradient(135deg, var(--color-primary-light), #EEF2FF);
    border-radius: var(--radius-lg);
    margin-bottom: 32px;
}

.dashboard-hero h1 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary-dark);
    margin-bottom: 8px;
}

.hero-subtitle {
    color: var(--color-text-secondary);
    font-size: 1.05rem;
    margin-bottom: 24px;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 32px;
    flex-wrap: wrap;
}

.stat-card {
    background: var(--color-surface);
    border-radius: var(--radius-md);
    padding: 16px 28px;
    box-shadow: var(--shadow-sm);
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--color-primary);
}

.stat-label {
    font-size: 0.8rem;
    color: var(--color-text-secondary);
    font-weight: 500;
}

/* ─── Phase Navigation ───────────────────────────────────────────────────── */
.phase-navigation {
    display: flex;
    gap: 4px;
    margin-bottom: 32px;
    position: sticky;
    top: 68px;
    background: var(--color-bg);
    padding: 12px 0;
    z-index: 50;
}

.phase-tab {
    flex: 1;
    text-align: center;
    padding: 12px 16px;
    text-decoration: none;
    color: var(--color-text-secondary);
    font-weight: 600;
    font-size: 0.85rem;
    border-radius: var(--radius-sm);
    transition: all 0.15s;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
}

.phase-tab:hover, .phase-tab.active {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}

/* ─── Phase Sections ─────────────────────────────────────────────────────── */
.phase-section {
    margin-bottom: 48px;
    scroll-margin-top: 140px;
}

.phase-header {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 12px 20px;
    background: var(--color-surface);
    border-radius: var(--radius-md);
    margin-bottom: 20px;
    box-shadow: var(--shadow-sm);
}

.phase-header h2 {
    font-size: 1.3rem;
    font-weight: 700;
}

.phase-meta {
    display: flex;
    gap: 16px;
    font-size: 0.85rem;
    color: var(--color-text-secondary);
}

.phase-name { font-weight: 600; }

/* ─── Lesson Grid ────────────────────────────────────────────────────────── */
.lesson-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 20px;
}

.lesson-card {
    background: var(--color-surface);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: box-shadow 0.2s, transform 0.15s;
    border: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
}

.lesson-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.lesson-card-header {
    padding: 12px 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.lesson-code {
    font-weight: 700;
    font-size: 1.1rem;
}

.lesson-level {
    font-size: 0.8rem;
    color: var(--color-text-secondary);
    background: var(--color-bg);
    padding: 4px 10px;
    border-radius: 12px;
}

.lesson-card-body {
    padding: 16px;
    flex: 1;
}

.lesson-card-body h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.lesson-task-type {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 600;
    margin-bottom: 8px;
}

.lesson-prompt {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    margin-bottom: 12px;
    line-height: 1.5;
}

.lesson-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.tag {
    font-size: 0.75rem;
    background: var(--color-bg);
    padding: 3px 10px;
    border-radius: 12px;
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
}

.lesson-card-footer {
    padding: 12px 16px;
    border-top: 1px solid var(--color-border);
    display: flex;
    gap: 8px;
}

/* ─── Buttons ────────────────────────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: all 0.15s;
    font-family: var(--font-sans);
}

.btn-primary {
    background: var(--color-primary);
    color: white;
}

.btn-primary:hover { background: var(--color-primary-dark); }

.btn-outline {
    background: transparent;
    color: var(--color-primary);
    border: 1.5px solid var(--color-primary);
}

.btn-outline:hover {
    background: var(--color-primary-light);
}

.btn-large {
    padding: 14px 28px;
    font-size: 1rem;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 0.8rem;
}

/* ─── Lesson View ────────────────────────────────────────────────────────── */
.lesson-container {
    max-width: 900px;
    margin: 0 auto;
}

.breadcrumb {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-bottom: 24px;
}

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

.breadcrumb a:hover { text-decoration: underline; }

.lesson-header-card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: 32px;
    box-shadow: var(--shadow-md);
    margin-bottom: 24px;
    text-align: center;
    border: 1px solid var(--color-border);
}

.lesson-code-badge {
    display: inline-block;
    background: var(--color-primary);
    color: white;
    padding: 8px 18px;
    border-radius: 20px;
    font-weight: 700;
    font-size: 1.1rem;
    margin-bottom: 16px;
}

.lesson-header-card h1 {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.lesson-header-meta {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px 16px;
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    margin-bottom: 20px;
}

.lesson-header-meta span {
    background: var(--color-bg);
    padding: 4px 12px;
    border-radius: 12px;
}

.lesson-section {
    background: var(--color-surface);
    border-radius: var(--radius-md);
    padding: 28px;
    margin-bottom: 20px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
}

.lesson-section h2 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 16px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--color-primary-light);
    color: var(--color-primary-dark);
}

/* ─── Prompt Box ─────────────────────────────────────────────────────────── */
.prompt-box {
    background: var(--color-primary-light);
    border-left: 4px solid var(--color-primary);
    padding: 16px 20px;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    font-size: 1.05rem;
}

.optional-ideas {
    margin-top: 16px;
}

.optional-ideas h4 {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    margin-bottom: 8px;
}

.optional-ideas ul {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.optional-ideas li {
    background: var(--color-bg);
    padding: 6px 14px;
    border-radius: 16px;
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
}

/* ─── Section Note (e.g. after reading input) ──────────────────────────── */
.section-note {
    margin-top: 14px;
    padding: 10px 16px;
    background: #F0F9FF;
    border-left: 3px solid #7C3AED;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    font-size: 0.85rem;
    color: var(--color-text-secondary);
}

.section-note a {
    color: var(--color-primary);
    font-weight: 600;
    text-decoration: none;
}

.section-note a:hover { text-decoration: underline; }

/* ─── Model Passage ──────────────────────────────────────────────────────── */
.model-passage blockquote {
    font-family: var(--font-serif);
    background: #FAFBFC;
    border-left: 3px solid var(--color-green);
    padding: 20px 24px;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    font-size: 0.95rem;
    line-height: 1.8;
    color: var(--color-text);
}

/* ─── Notice Questions ───────────────────────────────────────────────────── */
.notice-questions { display: flex; flex-direction: column; gap: 12px; }

.question-item {
    display: flex;
    gap: 14px;
    padding: 14px;
    background: var(--color-bg);
    border-radius: var(--radius-sm);
}

.question-number {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 32px;
    height: 32px;
    background: var(--color-primary);
    color: white;
    border-radius: 50%;
    font-weight: 700;
    font-size: 0.9rem;
    flex-shrink: 0;
}

.question-item strong {
    display: block;
    font-size: 0.9rem;
    margin-bottom: 4px;
}

.question-item p {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
}

/* ─── SPaG Table ─────────────────────────────────────────────────────────── */
.weight-legend-box {
    background: #FFFBEB;
    border: 1px solid #FDE68A;
    padding: 10px 16px;
    border-radius: var(--radius-sm);
    margin-bottom: 16px;
    font-size: 0.85rem;
}

.table-responsive { overflow-x: auto; }

.spag-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}

.spag-table th {
    background: var(--color-primary-light);
    padding: 10px 14px;
    text-align: left;
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-primary-dark);
}

.spag-table td {
    padding: 10px 14px;
    border-bottom: 1px solid var(--color-border);
    vertical-align: top;
}

.domain-cell { font-weight: 600; min-width: 120px; }

.weight-badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
}

.weight-p { background: #FEE2E2; color: #DC2626; }
.weight-s { background: #FFF7ED; color: #EA580C; }
.weight-r { background: #DBEAFE; color: #2563EB; }
.weight-l { background: #F1F5F9; color: #64748B; }

/* ─── Teaching Point ─────────────────────────────────────────────────────── */
.teaching-point { font-size: 0.95rem; }

.teaching-point > p { margin-bottom: 12px; }

.example {
    padding: 16px;
    border-radius: var(--radius-sm);
    margin-bottom: 12px;
}

.example.wrong {
    background: var(--color-red-light);
    border-left: 3px solid var(--color-red);
}

.example.better {
    background: var(--color-green-light);
    border-left: 3px solid var(--color-green);
}

.example-label {
    font-weight: 700;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: block;
    margin-bottom: 6px;
}

.example blockquote {
    font-family: var(--font-serif);
    font-size: 0.9rem;
    margin: 0;
}

/* ─── Micro Practice ─────────────────────────────────────────────────────── */
.practice-item {
    display: flex;
    gap: 14px;
    padding: 14px;
    background: var(--color-bg);
    border-radius: var(--radius-sm);
    margin-bottom: 8px;
}

.task-number {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 60px;
    height: 28px;
    background: var(--color-primary);
    color: white;
    border-radius: 14px;
    font-weight: 600;
    font-size: 0.8rem;
    flex-shrink: 0;
}

.practice-content { flex: 1; min-width: 0; }

.practice-title {
    font-size: 0.9rem;
    margin-bottom: 4px;
}

.practice-desc {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    margin-bottom: 8px;
    line-height: 1.5;
}

.practice-sub-items {
    list-style: none;
    padding-left: 0;
}

.practice-sub-items li {
    font-size: 0.85rem;
    padding: 4px 0 4px 16px;
    border-bottom: 1px solid var(--color-border);
    position: relative;
    line-height: 1.4;
}

.practice-sub-items li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: 700;
}

.writing-task-detail h4 {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 8px;
    margin-top: 16px;
}

/* ─── Plan Table (Paragraph Plan) ──────────────────────────────────────── */
.plan-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 10px;
    font-size: 0.85rem;
}

.plan-table th {
    text-align: left;
    padding: 10px 14px;
    background: var(--color-primary-light);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    color: var(--color-primary-dark);
    border-bottom: 2px solid var(--color-primary);
}

.plan-table td {
    padding: 10px 14px;
    border-bottom: 1px solid var(--color-border);
    vertical-align: top;
    line-height: 1.5;
}

.plan-table tr:last-child td {
    border-bottom: none;
}

/* ─── Checklist ──────────────────────────────────────────────────────────── */
.checklist {
    list-style: none;
}

.checklist li {
    padding: 10px 14px;
    border-bottom: 1px solid var(--color-border);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.checklist li input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--color-green);
}

/* ─── Model Works Carousel ─────────────────────────────────────────────── */
.carousel-instruction {
    text-align: center;
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-bottom: 16px;
}

.carousel-container {
    display: flex;
    align-items: stretch;
    gap: 0;
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    background: var(--color-bg);
    min-height: 300px;
}

.carousel-track {
    display: flex;
    flex: 1;
    transition: transform 0.35s ease;
    min-width: 0;
}

.carousel-slide {
    flex: 0 0 100%;
    padding: 28px 24px;
    overflow-y: auto;
    max-height: 550px;
}

.carousel-slide-header {
    text-align: center;
    margin-bottom: 12px;
}

.carousel-model-badge {
    display: inline-block;
    background: var(--color-primary-light);
    color: var(--color-primary-dark);
    padding: 4px 14px;
    border-radius: 12px;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.3px;
}

.carousel-model-title {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--color-primary-dark);
    text-align: center;
    margin-bottom: 16px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--color-primary-light);
}

/* Carousel Navigation Buttons */
.carousel-btn {
    flex-shrink: 0;
    width: 44px;
    background: var(--color-surface);
    border: none;
    border-radius: 0;
    font-size: 2rem;
    font-weight: 300;
    color: var(--color-primary);
    cursor: pointer;
    transition: all 0.15s;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-sans);
}

.carousel-btn:hover {
    background: var(--color-primary-light);
    color: var(--color-primary-dark);
}

.carousel-prev {
    border-right: 1px solid var(--color-border);
}

.carousel-next {
    border-left: 1px solid var(--color-border);
}

/* Carousel Dots */
.carousel-dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 14px;
}

.carousel-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--color-border);
    cursor: pointer;
    transition: all 0.2s;
}

.carousel-dot.active {
    background: var(--color-primary);
    transform: scale(1.3);
}

.carousel-dot:hover {
    background: var(--color-primary);
    opacity: 0.6;
}

/* ─── Model Works Grid (legacy, for full lesson view) ──────────────────── */
.model-works-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
}

.model-work-card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 20px;
}

.model-work-card h4 {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--color-primary-dark);
    margin-bottom: 12px;
}

.model-text {
    font-family: var(--font-serif);
    font-size: 0.9rem;
    line-height: 1.8;
}

.model-text p { margin-bottom: 10px; }

/* ─── Lesson CTA ─────────────────────────────────────────────────────────── */
.lesson-cta {
    text-align: center;
    padding: 40px;
    background: linear-gradient(135deg, var(--color-primary-light), #EEF2FF);
    border-radius: var(--radius-lg);
    margin-top: 32px;
}

.lesson-cta h3 {
    font-size: 1.4rem;
    color: var(--color-primary-dark);
    margin-bottom: 8px;
}

.lesson-cta p {
    color: var(--color-text-secondary);
    margin-bottom: 20px;
}

/* ─── Writing Submission ─────────────────────────────────────────────────── */
.write-container { max-width: 1200px; margin: 0 auto; }

.write-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
}

.back-link {
    color: var(--color-primary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
}

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

.write-meta { display: flex; align-items: center; gap: 12px; }

.write-meta h1 { font-size: 1.4rem; }

.write-layout {
    display: grid;
    grid-template-columns: 340px 1fr;
    gap: 24px;
}

.write-instructions {
    display: flex;
    flex-direction: column;
    gap: 16px;
    position: sticky;
    top: 80px;
    align-self: start;
}

.instruction-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 16px;
    box-shadow: var(--shadow-sm);
}

.instruction-card h3 {
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-text-secondary);
    margin-bottom: 10px;
}

.task-prompt {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text);
}

.target-row {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 0;
    font-size: 0.82rem;
    border-bottom: 1px solid var(--color-bg);
}

.mini-checklist {
    list-style: none;
    font-size: 0.82rem;
}

.mini-checklist li {
    padding: 4px 0;
    border-bottom: 1px solid var(--color-bg);
}

.mini-checklist li::before { content: '\2611  '; color: var(--color-green); }

.instruction-card ul {
    list-style: none;
    font-size: 0.82rem;
}

.instruction-card ul li {
    padding: 4px 0;
    border-bottom: 1px solid var(--color-bg);
}

/* ─── Writing Area ───────────────────────────────────────────────────────── */
.write-area { min-width: 0; }

.alert {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    margin-bottom: 16px;
    font-size: 0.9rem;
}

.alert-error {
    background: var(--color-red-light);
    color: var(--color-red);
    border: 1px solid #FECACA;
}

.writing-form { margin-bottom: 16px; }

.writing-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 16px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-bottom: none;
    border-radius: var(--radius-sm) var(--radius-sm) 0 0;
}

.word-counter {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--color-primary);
}

.target-badge {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    background: var(--color-bg);
    padding: 4px 12px;
    border-radius: 12px;
}

.writing-textarea {
    width: 100%;
    min-height: 400px;
    padding: 20px;
    font-family: var(--font-serif);
    font-size: 1rem;
    line-height: 1.8;
    border: 1px solid var(--color-border);
    border-radius: 0 0 var(--radius-sm) var(--radius-sm);
    resize: vertical;
    outline: none;
    transition: border-color 0.15s;
}

.writing-textarea:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

.writing-actions {
    display: flex;
    gap: 12px;
    margin-top: 16px;
}

.reading-reference {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.reading-reference summary {
    padding: 14px 20px;
    font-weight: 600;
    cursor: pointer;
    font-size: 0.9rem;
    background: var(--color-bg);
    user-select: none;
}

.reading-reference blockquote {
    padding: 16px 20px;
    font-family: var(--font-serif);
    font-size: 0.9rem;
    line-height: 1.7;
}

/* ─── Feedback View ──────────────────────────────────────────────────────── */
.feedback-container { max-width: 800px; margin: 0 auto; }

.feedback-header {
    text-align: center;
    margin-bottom: 24px;
}

.feedback-header h1 {
    font-size: 1.6rem;
    margin: 8px 0;
}

.feedback-meta {
    display: flex;
    justify-content: center;
    gap: 16px;
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    flex-wrap: wrap;
    align-items: center;
}

.ai-badge {
    display: inline-block;
    padding: 3px 12px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.3px;
}

.ai-badge.ai-real {
    background: #D1FAE5;
    color: #059669;
    border: 1px solid #A7F3D0;
}

.ai-badge.ai-demo {
    background: #FFF7ED;
    color: #EA580C;
    border: 1px solid #FED7AA;
}

.score-hero {
    text-align: center;
    padding: 32px;
    margin-bottom: 24px;
}

.score-circle {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 130px;
    height: 130px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: white;
    box-shadow: 0 8px 25px rgba(37, 99, 235, 0.3);
}

.score-number {
    font-size: 2.8rem;
    font-weight: 800;
    line-height: 1;
}

.score-scale {
    font-size: 1rem;
    opacity: 0.85;
}

.score-label {
    margin-top: 12px;
    font-weight: 600;
    color: var(--color-text-secondary);
}

/* ─── Dimension Scores ───────────────────────────────────────────────────── */
.dimension-scores {
    background: var(--color-surface);
    border-radius: var(--radius-md);
    padding: 24px;
    margin-bottom: 24px;
    border: 1px solid var(--color-border);
}

.dimension-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 14px;
}

.dimension-card {
    background: var(--color-bg);
    border-radius: var(--radius-sm);
    padding: 12px;
}

.dim-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.dim-name {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.dim-score {
    font-weight: 700;
    font-size: 0.9rem;
}

.dim-bar {
    height: 6px;
    background: var(--color-border);
    border-radius: 3px;
    overflow: hidden;
}

.dim-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-primary), var(--color-green));
    border-radius: 3px;
    transition: width 0.6s ease;
}

/* ─── Feedback Cards ─────────────────────────────────────────────────────── */
.feedback-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.feedback-card {
    background: var(--color-surface);
    border-radius: var(--radius-md);
    padding: 20px;
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
}

.card-icon { font-size: 1.5rem; margin-bottom: 8px; }

.feedback-card h3 {
    font-size: 0.9rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

.feedback-card p {
    font-size: 0.88rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.feedback-card.strength { border-left: 4px solid var(--color-green); }
.feedback-card.spag-target { border-left: 4px solid var(--color-orange); }
.feedback-card.craft-target { border-left: 4px solid var(--color-purple); }
.feedback-card.challenge { border-left: 4px solid var(--color-primary); }

/* ─── Original Writing Box ───────────────────────────────────────────────── */
.original-writing-section {
    background: var(--color-surface);
    border-radius: var(--radius-md);
    padding: 24px;
    margin-bottom: 24px;
    border: 1px solid var(--color-border);
}

.original-writing-section h3 {
    margin-bottom: 12px;
    font-size: 1rem;
}

.original-writing-section h3 small {
    font-weight: 400;
    color: var(--color-text-muted);
}

.original-writing-box {
    font-family: var(--font-serif);
    font-size: 0.95rem;
    line-height: 1.8;
    white-space: pre-wrap;
    background: var(--color-bg);
    padding: 20px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
}

/* ─── Next Steps ─────────────────────────────────────────────────────────── */
.next-steps {
    text-align: center;
    padding: 24px;
    background: var(--color-surface);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
}

.next-steps h3 { margin-bottom: 16px; }

.next-actions { display: flex; justify-content: center; gap: 12px; flex-wrap: wrap; }

/* ─── Progress Dashboard ─────────────────────────────────────────────────── */
.progress-container { max-width: 1100px; margin: 0 auto; }

.progress-header {
    text-align: center;
    margin-bottom: 32px;
}

.progress-header h1 { font-size: 1.8rem; }

.progress-subtitle {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    margin-top: 4px;
}

/* ─── Status Cards ───────────────────────────────────────────────────────── */
.status-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 32px;
}

.status-card {
    text-align: center;
    padding: 24px 16px;
    border-radius: var(--radius-md);
    color: white;
    box-shadow: var(--shadow-sm);
}

.status-card.secure { background: var(--color-green); }
.status-card.developing { background: var(--color-blue); }
.status-card.needs-practice { background: var(--color-orange); }
.status-card.weakness { background: var(--color-red); }

.status-number {
    display: block;
    font-size: 2.2rem;
    font-weight: 800;
}

.status-label {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    opacity: 0.9;
}

/* ─── Domain Grid ────────────────────────────────────────────────────────── */
.domain-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(480px, 1fr));
    gap: 20px;
    margin-bottom: 32px;
}

.domain-card {
    background: var(--color-surface);
    border-radius: var(--radius-md);
    padding: 20px;
    border: 1px solid var(--color-border);
}

.domain-card h3 {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--color-primary-dark);
    margin-bottom: 14px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--color-primary-light);
}

.domain-points { display: flex; flex-direction: column; gap: 12px; }

.mastery-point {
    padding: 12px;
    background: var(--color-bg);
    border-radius: var(--radius-sm);
}

.mastery-info {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 8px;
}

.mastery-name {
    font-size: 0.82rem;
    font-weight: 600;
    flex: 1;
}

.mastery-score-row {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

.mastery-score {
    font-weight: 700;
    font-size: 0.9rem;
}

.mastery-status {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 10px;
}

.status-secure { background: var(--color-green-light); color: var(--color-green); }
.status-developing { background: var(--color-blue-light); color: var(--color-blue); }
.status-needs-practice { background: var(--color-orange-light); color: var(--color-orange); }
.status-priority-weakness { background: var(--color-red-light); color: var(--color-red); }

.mastery-bar-bg {
    height: 6px;
    background: var(--color-border);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 6px;
}

.mastery-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-red), var(--color-orange), var(--color-green));
    border-radius: 3px;
    transition: width 0.4s ease;
}

.mastery-meta {
    display: flex;
    gap: 12px;
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

.trend-improving { color: var(--color-green); font-weight: 600; }
.trend-declining { color: var(--color-red); font-weight: 600; }
.trend-stable { color: var(--color-text-muted); }

/* ─── Weakness Alert ─────────────────────────────────────────────────────── */
.weakness-alert {
    background: #FFF5F5;
    border: 1px solid #FECACA;
    border-radius: var(--radius-md);
    padding: 20px;
    margin-bottom: 24px;
}

.weakness-alert h3 {
    color: var(--color-red);
    margin-bottom: 12px;
}

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

.weakness-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    background: white;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
}

.weakness-domain {
    font-weight: 700;
    font-size: 0.75rem;
    text-transform: uppercase;
    color: var(--color-text-muted);
    min-width: 110px;
}

.weakness-detail { flex: 1; }
.weakness-score { font-weight: 600; }

/* ─── Challenges Section ─────────────────────────────────────────────────── */
.challenges-section {
    background: var(--color-surface);
    border-radius: var(--radius-md);
    padding: 20px;
    margin-bottom: 32px;
    border: 1px solid var(--color-border);
}

.challenge-list {
    padding-left: 20px;
}

.challenge-list li {
    padding: 8px 0;
    font-size: 0.9rem;
    color: var(--color-text-secondary);
}

/* ─── Submissions List ───────────────────────────────────────────────────── */
.submissions-list { display: flex; flex-direction: column; gap: 8px; }

.submission-row {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 14px 20px;
    background: var(--color-surface);
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
}

.sub-code { font-weight: 700; min-width: 40px; }
.sub-score { font-weight: 700; color: var(--color-primary); }
.sub-date { color: var(--color-text-muted); font-size: 0.85rem; flex: 1; }
.sub-words { font-size: 0.85rem; color: var(--color-text-secondary); }

.no-data {
    text-align: center;
    color: var(--color-text-muted);
    padding: 32px;
    font-size: 0.9rem;
}

.no-data a { color: var(--color-primary); }

/* ─── Parent Report ──────────────────────────────────────────────────────── */
.report-container { max-width: 900px; margin: 0 auto; }

.report-header {
    text-align: center;
    margin-bottom: 32px;
    padding: 32px;
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
}

.report-header h1 { font-size: 1.8rem; }

.report-subtitle {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    margin-top: 4px;
}

.report-summary {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 32px;
}

.report-card {
    text-align: center;
    padding: 24px;
    border-radius: var(--radius-md);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
}

.report-card.primary {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}

.report-number {
    display: block;
    font-size: 2rem;
    font-weight: 800;
}

.report-label {
    display: block;
    font-size: 0.78rem;
    margin-top: 4px;
    opacity: 0.8;
}

.report-section {
    background: var(--color-surface);
    border-radius: var(--radius-md);
    padding: 24px;
    margin-bottom: 20px;
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
}

.report-section h2 {
    font-size: 1.1rem;
    margin-bottom: 16px;
    color: var(--color-primary-dark);
}

/* ─── Mastery Overview ───────────────────────────────────────────────────── */
.mastery-bar-segmented {
    display: flex;
    height: 32px;
    border-radius: var(--radius-sm);
    overflow: hidden;
    margin-bottom: 12px;
}

.seg {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    font-weight: 700;
    color: white;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.seg-secure { background: var(--color-green); }
.seg-developing { background: var(--color-blue); }
.seg-needs { background: var(--color-orange); }
.seg-weakness { background: var(--color-red); }

.mastery-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.8rem;
    color: var(--color-text-secondary);
}

.legend-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    display: inline-block;
}

/* ─── Strength List ──────────────────────────────────────────────────────── */
.strength-list { display: flex; flex-direction: column; gap: 8px; }

.strength-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    background: var(--color-green-light);
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
}

.strength-domain {
    font-weight: 700;
    font-size: 0.75rem;
    text-transform: uppercase;
    color: var(--color-green);
    min-width: 110px;
}

.strength-detail { flex: 1; }

.strength-score {
    font-weight: 700;
    color: var(--color-green);
}

/* ─── Activity Table ─────────────────────────────────────────────────────── */
.activity-table { overflow-x: auto; }

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

.activity-table th {
    text-align: left;
    padding: 10px 14px;
    background: var(--color-bg);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    color: var(--color-text-secondary);
    border-bottom: 2px solid var(--color-border);
}

.activity-table td {
    padding: 10px 14px;
    border-bottom: 1px solid var(--color-border);
    font-size: 0.88rem;
}

/* ─── Info Section ───────────────────────────────────────────────────────── */
.info-section { background: #F0F9FF; border-color: #BAE6FD; }

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
}

.info-card h4 {
    font-size: 0.88rem;
    color: var(--color-primary-dark);
    margin-bottom: 6px;
}

.info-card p {
    font-size: 0.82rem;
    color: var(--color-text-secondary);
    line-height: 1.5;
}

/* ─── Report Footer Note ─────────────────────────────────────────────────── */
.report-footer-note {
    background: #FFFBEB;
    border: 1px solid #FDE68A;
    border-radius: var(--radius-md);
    padding: 16px 20px;
    margin-top: 24px;
    font-size: 0.82rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.report-footer-note strong { color: var(--color-text); }

/* ─── Action List ────────────────────────────────────────────────────────── */
.action-list {
    padding-left: 20px;
}

.action-list li {
    padding: 6px 0;
    font-size: 0.9rem;
}

/* ─── Lesson Index (Kid-Friendly Section Cards) ────────────────────────── */
.lesson-index-container { max-width: 900px; margin: 0 auto; }

.lesson-index-header {
    text-align: center;
    padding: 32px 24px;
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    margin-bottom: 28px;
    border: 1px solid var(--color-border);
}

.lesson-index-header h1 {
    font-size: 1.6rem;
    margin: 12px 0 8px;
}

.index-cta {
    margin-top: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.index-hint {
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

.index-section-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-primary-dark);
    margin-bottom: 4px;
}

.index-section-subtitle {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    margin-bottom: 20px;
}

/* ─── Section Cards Grid (3×3) ─────────────────────────────────────────── */
.section-cards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
    margin-bottom: 32px;
}

.section-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 8px;
    padding: 20px 14px 16px;
    background: var(--color-surface);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    text-decoration: none;
    color: var(--color-text);
    transition: all 0.15s;
    box-shadow: var(--shadow-sm);
    aspect-ratio: 1 / 1;
    justify-content: center;
    min-height: 180px;
}

.section-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-3px);
    background: var(--color-primary-light);
}

.section-card-empty {
    opacity: 0.4;
    pointer-events: none;
}

.section-card-num {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 32px;
    height: 32px;
    background: var(--color-primary);
    color: white;
    border-radius: 50%;
    font-weight: 800;
    font-size: 0.9rem;
    flex-shrink: 0;
}

.section-card:hover .section-card-num {
    background: var(--color-primary-dark);
}

.section-card-icon {
    font-size: 1.6rem;
    flex-shrink: 0;
}

.section-card-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.section-card-content h3 {
    font-size: 0.88rem;
    font-weight: 700;
    color: var(--color-text);
    line-height: 1.2;
}

.section-card:hover .section-card-content h3 {
    color: var(--color-primary-dark);
}

.section-card-content p {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    line-height: 1.35;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.section-card-arrow {
    display: none;
}

/* ─── Index Bottom CTA ──────────────────────────────────────────────────── */
.index-bottom-cta {
    text-align: center;
    padding: 32px;
    background: linear-gradient(135deg, var(--color-primary-light), #EEF2FF);
    border-radius: var(--radius-lg);
    margin-bottom: 24px;
}

.index-bottom-cta p {
    color: var(--color-text-secondary);
    margin-bottom: 14px;
    font-size: 0.95rem;
}

/* ─── Section Detail Page ───────────────────────────────────────────────── */
.lesson-section-detail-container { max-width: 800px; margin: 0 auto; }

.section-detail-header {
    text-align: center;
    margin-bottom: 20px;
}

.section-detail-badge {
    display: inline-block;
    background: var(--color-primary-light);
    color: var(--color-primary-dark);
    padding: 6px 18px;
    border-radius: 16px;
    font-weight: 600;
    font-size: 0.85rem;
}

/* ─── Section Navigation (Prev/Next) ────────────────────────────────────── */
.section-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 28px;
    padding: 16px 0;
    gap: 12px;
}

.section-nav .btn { white-space: nowrap; }

/* ─── Footer ─────────────────────────────────────────────────────────────── */
.footer {
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
    text-align: center;
    padding: 24px;
    margin-top: 48px;
}

.footer-content p {
    font-size: 0.82rem;
    color: var(--color-text-muted);
    margin-bottom: 4px;
}

.footer-note {
    font-style: italic;
    font-size: 0.78rem !important;
}

/* ─── Responsive ─────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
    .nav-container { flex-direction: column; height: auto; padding: 12px; gap: 8px; }
    .nav-links { flex-wrap: wrap; justify-content: center; }

    .hero-stats { gap: 12px; }
    .stat-card { padding: 12px 16px; }
    .stat-number { font-size: 1.4rem; }

    .phase-navigation { flex-wrap: wrap; }
    .phase-tab { font-size: 0.75rem; padding: 8px; }

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

    .write-layout { grid-template-columns: 1fr; }
    .write-instructions { position: static; }

    .status-cards { grid-template-columns: repeat(2, 1fr); }
    .report-summary { grid-template-columns: repeat(2, 1fr); }
    .domain-grid { grid-template-columns: 1fr; }
    .feedback-cards { grid-template-columns: 1fr; }
    .dimension-grid { grid-template-columns: 1fr 1fr; }
    .info-grid { grid-template-columns: 1fr 1fr; }

    .section-cards-grid { grid-template-columns: repeat(2, 1fr); }
    .section-card { padding: 14px 10px; min-height: 150px; }
    .section-card-content h3 { font-size: 0.8rem; }
    .section-card-content p { font-size: 0.7rem; }
    .section-nav { flex-wrap: wrap; justify-content: center; }
}

/* ─── Print Styles ───────────────────────────────────────────────────────── */
@media print {
    .navbar, .nav-links, .phase-navigation, .footer, .btn, .lesson-cta { display: none; }
    .main-content { padding: 0; }
    body { background: white; }
    .lesson-section, .report-section { box-shadow: none; border: 1px solid #ddd; break-inside: avoid; }
}