/* ===== CoachPrash — Bold & Academic Theme ===== */

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

:root {
    --primary: #1B365D;
    --secondary: #C41E3A;
    --accent: #F4A100;
    --bg: #FAFAFA;
    --card-bg: #FFFFFF;
    --text: #1A1A2E;
    --text-secondary: #4A4A6A;
    --success: #2D8659;
    --border: #E2E8F0;
    --danger: #DC3545;
    --shadow: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-hover: 0 4px 16px rgba(0,0,0,0.12);
    --radius: 8px;
    --transition: 0.2s ease;
}

html { scroll-behavior: smooth; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main { flex: 1; }

h1, h2, h3, h4, h5 {
    font-family: 'Playfair Display', Georgia, serif;
    font-weight: 700;
    line-height: 1.3;
    color: var(--primary);
}

h1 { font-size: 2.25rem; margin-bottom: 0.75rem; }
h2 { font-size: 1.75rem; margin-bottom: 0.5rem; }
h3 { font-size: 1.25rem; margin-bottom: 0.4rem; }

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

code, pre {
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
}

img { max-width: 100%; height: auto; }

/* --- Container --- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* --- Navbar --- */
.navbar {
    background: var(--primary);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.nav-logo {
    font-family: 'Playfair Display', serif;
    font-size: 1.5rem;
    font-weight: 800;
    color: #FFFFFF !important;
    letter-spacing: 0.5px;
}

.nav-links {
    display: flex;
    align-items: center;
    list-style: none;
    gap: 0.25rem;
}

.nav-links a {
    color: rgba(255,255,255,0.85);
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius);
    font-size: 0.9rem;
    font-weight: 500;
    transition: all var(--transition);
}

.nav-links a:hover {
    color: #FFFFFF;
    background: rgba(255,255,255,0.1);
}

.nav-admin { color: var(--accent) !important; }

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: #FFF;
    margin: 5px 0;
    transition: var(--transition);
}

.nav-user-menu { position: relative; }

.nav-dropdown {
    display: none;
    position: absolute;
    top: 100%;
    right: 0;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-hover);
    min-width: 150px;
    z-index: 1001;
}

.nav-dropdown.show { display: block; }

.nav-dropdown a {
    display: block;
    padding: 0.75rem 1rem;
    color: var(--text);
    font-size: 0.9rem;
}

.nav-dropdown a:hover { background: var(--bg); }

/* --- Buttons --- */
.btn {
    display: inline-block;
    padding: 0.625rem 1.5rem;
    border: 2px solid transparent;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all var(--transition);
    text-align: center;
    line-height: 1.5;
}

.btn:hover { transform: translateY(-1px); box-shadow: var(--shadow); }

.btn-primary { background: var(--primary); color: #FFF; border-color: var(--primary); }
.btn-primary:hover { background: #15294a; color: #FFF; }

.btn-secondary { background: var(--secondary); color: #FFF; border-color: var(--secondary); }
.btn-secondary:hover { background: #a3182f; color: #FFF; }

.btn-accent { background: var(--accent); color: var(--primary); border-color: var(--accent); font-weight: 700; }
.btn-accent:hover { background: #d68e00; color: var(--primary); }

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

.btn-danger { background: var(--danger); color: #FFF; border-color: var(--danger); }
.btn-danger:hover { background: #c82333; color: #FFF; }

.btn-sm { padding: 0.35rem 0.75rem; font-size: 0.8rem; }
.btn-lg { padding: 0.875rem 2rem; font-size: 1rem; }
.btn-block { display: block; width: 100%; }

/* --- Hero --- */
.hero {
    background: linear-gradient(135deg, var(--primary) 0%, #0d1f3c 100%);
    color: #FFF;
    padding: 5rem 0;
    text-align: center;
}

.hero h1 {
    color: #FFF;
    font-size: 3rem;
    margin-bottom: 1rem;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: rgba(255,255,255,0.85);
    max-width: 650px;
    margin: 0 auto 2rem;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.hero-cta .btn-outline {
    color: #FFF;
    border-color: #FFF;
}

.hero-cta .btn-outline:hover {
    background: #FFF;
    color: var(--primary);
}

/* --- Sections --- */
.section { padding: 4rem 0; }
.section-alt { background: #F0F4F8; }

.section-title {
    text-align: center;
    margin-bottom: 2.5rem;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: var(--accent);
    margin: 0.75rem auto 0;
}

.page-header {
    background: var(--primary);
    color: #FFF;
    padding: 3rem 0;
    text-align: center;
}

.page-header h1 { color: #FFF; }
.page-header p { color: rgba(255,255,255,0.85); font-size: 1.1rem; }

/* --- Cards --- */
.card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    box-shadow: var(--shadow);
    transition: all var(--transition);
}

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

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
}

.card-link {
    color: var(--secondary);
    font-weight: 600;
    font-size: 0.9rem;
    margin-top: 0.75rem;
    display: inline-block;
}

/* --- Subject Cards --- */
.subject-card {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    color: var(--text);
}

.subject-icon {
    font-size: 2.5rem;
    margin-bottom: 0.75rem;
}

.subject-meta { margin-top: 0.75rem; }

/* --- Topic Cards --- */
.topic-card {
    text-decoration: none;
    color: var(--text);
    display: block;
}

.topic-meta {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.75rem;
    flex-wrap: wrap;
}

/* --- Badges --- */
.badge {
    display: inline-block;
    padding: 0.2rem 0.6rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    background: #E8EDF3;
    color: var(--primary);
}

.badge-free { background: #D4EDDA; color: var(--success); }
.badge-premium { background: #FFF3CD; color: #856404; }
.badge-elementary { background: #D4EDDA; color: #155724; }
.badge-middle_school { background: #CCE5FF; color: #004085; }
.badge-high_school { background: #E8EDF3; color: var(--primary); }
.badge-ap { background: #F8D7DA; color: #721C24; }
.badge-college { background: #E2D5F1; color: #4A1A7A; }
.badge-inactive { background: #F8D7DA; color: var(--danger); }
.badge-published { background: #D4EDDA; color: var(--success); }
.badge-draft { background: #FFF3CD; color: #856404; }

/* --- Features Grid --- */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.feature {
    text-align: center;
    padding: 1.5rem;
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

/* --- Testimonials --- */
.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.testimonial-card { display: flex; flex-direction: column; }

.testimonial-stars {
    color: var(--accent);
    font-size: 1.1rem;
    margin-bottom: 0.75rem;
}

.testimonial-text {
    flex: 1;
    font-style: italic;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    line-height: 1.7;
}

.testimonial-author strong { display: block; color: var(--text); }
.testimonial-author span { font-size: 0.85rem; color: var(--text-secondary); }

/* --- CTA Banner --- */
.cta-banner {
    background: linear-gradient(135deg, var(--secondary) 0%, #8B1528 100%);
    color: #FFF;
    padding: 4rem 0;
    text-align: center;
}

.cta-banner h2 { color: #FFF; font-size: 2rem; margin-bottom: 0.5rem; }
.cta-banner p { color: rgba(255,255,255,0.9); font-size: 1.1rem; margin-bottom: 1.5rem; }

/* --- About Page --- */
.about-grid {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 3rem;
    align-items: start;
}

.photo-placeholder {
    width: 250px;
    height: 250px;
    background: linear-gradient(135deg, var(--primary), #0d1f3c);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
}

.photo-placeholder span {
    font-family: 'Playfair Display', serif;
    font-size: 4rem;
    font-weight: 800;
    color: #FFF;
}

.about-bio p { margin-bottom: 1rem; color: var(--text-secondary); }

.philosophy-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.philosophy-item {
    padding: 1.5rem;
    background: var(--card-bg);
    border-radius: var(--radius);
    border-left: 4px solid var(--accent);
}

.philosophy-item h3 { margin-bottom: 0.5rem; }
.philosophy-item p { color: var(--text-secondary); }

.subjects-summary {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1.5rem;
}

.subject-summary-card {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: var(--radius);
    border: 1px solid var(--border);
}

.subject-summary-card ul {
    list-style: none;
    margin-top: 0.75rem;
}

.subject-summary-card li {
    padding: 0.3rem 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
    border-bottom: 1px solid var(--border);
}

.subject-summary-card li:last-child { border-bottom: none; }

/* --- Contact --- */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 350px;
    gap: 3rem;
}

.contact-info {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    height: fit-content;
}

.info-item { margin-bottom: 1.25rem; }
.info-item strong { display: block; color: var(--primary); margin-bottom: 0.25rem; }
.info-item p { color: var(--text-secondary); font-size: 0.9rem; }

/* --- Forms --- */
.form-group { margin-bottom: 1.25rem; }

.form-group label {
    display: block;
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 0.35rem;
    color: var(--text);
}

.form-control {
    width: 100%;
    padding: 0.625rem 0.875rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 0.9rem;
    font-family: inherit;
    background: #FFF;
    transition: border-color var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(27,54,93,0.1);
}

.form-textarea { min-height: 120px; resize: vertical; }

.form-check {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.form-check input[type="checkbox"] { width: 18px; height: 18px; cursor: pointer; }
.form-check label { margin-bottom: 0; cursor: pointer; }

.form-error {
    display: block;
    color: var(--danger);
    font-size: 0.8rem;
    margin-top: 0.25rem;
}

.form-actions {
    display: flex;
    gap: 0.75rem;
    margin-top: 1.5rem;
}

/* --- Auth --- */
.auth-container {
    max-width: 460px;
    margin: 2rem auto;
    background: var(--card-bg);
    padding: 2.5rem;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
}

.auth-container h1 { text-align: center; }
.auth-subtitle { text-align: center; color: var(--text-secondary); margin-bottom: 1.5rem; }
.auth-footer { text-align: center; margin-top: 1.5rem; color: var(--text-secondary); font-size: 0.9rem; }

.auth-divider {
    display: flex;
    align-items: center;
    margin: 1.5rem 0;
    color: var(--text-secondary);
    font-size: 0.85rem;
}
.auth-divider::before, .auth-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border);
}
.auth-divider span { padding: 0 1rem; }

.btn-google {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 0.75rem 1.5rem;
    background: #fff;
    color: #3c4043;
    border: 1px solid #dadce0;
    border-radius: var(--radius);
    font-size: 0.95rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: background var(--transition), box-shadow var(--transition);
}
.btn-google:hover {
    background: #f7f8f8;
    box-shadow: 0 1px 3px rgba(0,0,0,0.12);
}
.google-icon { flex-shrink: 0; }

/* --- Blog --- */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 1.5rem;
}

.blog-card {
    display: flex;
    flex-direction: column;
    text-decoration: none;
    color: var(--text);
}

.blog-card p { color: var(--text-secondary); flex: 1; margin: 0.5rem 0; }

.blog-meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 0.75rem;
}

.blog-post {
    max-width: 800px;
    margin: 0 auto;
}

.blog-post h1 { margin-top: 1rem; }

.blog-post-meta {
    display: flex;
    gap: 1.5rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border);
}

.blog-post-content {
    line-height: 1.8;
    color: var(--text);
}

.blog-post-content p { margin-bottom: 1.25rem; }
.blog-post-content h2, .blog-post-content h3 { margin-top: 2rem; }

.blog-post-footer {
    margin-top: 3rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
}

/* --- Breadcrumb --- */
.breadcrumb {
    font-size: 0.9rem;
    margin-bottom: 0.75rem;
}

.breadcrumb a { color: rgba(255,255,255,0.7); }
.breadcrumb a:hover { color: #FFF; }
.breadcrumb span { color: rgba(255,255,255,0.9); }

.section .breadcrumb a { color: var(--text-secondary); }
.section .breadcrumb a:hover { color: var(--primary); }
.section .breadcrumb span { color: var(--text); }

/* --- Coming Soon --- */
.coming-soon-box {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
    padding: 3rem 2rem;
    background: var(--card-bg);
    border-radius: var(--radius);
    border: 1px solid var(--border);
}

.coming-soon-icon { font-size: 3rem; margin-bottom: 1rem; }

.coming-soon-box h2 { margin-bottom: 0.75rem; }
.coming-soon-box p { color: var(--text-secondary); margin-bottom: 1.5rem; }

.planned-content {
    text-align: left;
    background: var(--bg);
    padding: 1rem 1.5rem;
    border-radius: var(--radius);
    margin-bottom: 1.5rem;
}

.planned-content h3 { font-size: 1rem; margin-bottom: 0.5rem; }
.planned-content ul { list-style: none; }
.planned-content li { padding: 0.3rem 0; color: var(--text-secondary); font-size: 0.9rem; }
.planned-content li::before { content: '📖 '; }

/* --- Flash Messages --- */
.flash-container {
    position: fixed;
    top: 72px;
    right: 1.5rem;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    max-width: 400px;
}

.flash {
    padding: 0.875rem 1.25rem;
    border-radius: var(--radius);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: var(--shadow-hover);
    animation: slideIn 0.3s ease;
}

.flash-success { background: #D4EDDA; color: #155724; border: 1px solid #C3E6CB; }
.flash-danger { background: #F8D7DA; color: #721C24; border: 1px solid #F5C6CB; }
.flash-info { background: #CCE5FF; color: #004085; border: 1px solid #B8DAFF; }
.flash-warning { background: #FFF3CD; color: #856404; border: 1px solid #FFEEBA; }

.flash-close {
    background: none;
    border: none;
    font-size: 1.25rem;
    cursor: pointer;
    padding: 0 0.25rem;
    opacity: 0.5;
    color: inherit;
}

.flash-close:hover { opacity: 1; }

@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

/* --- Empty State --- */
.empty-state {
    text-align: center;
    padding: 3rem;
    color: var(--text-secondary);
    font-size: 1.05rem;
}

/* --- Admin --- */
.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    text-align: center;
}

.stat-card-accent { border-left: 4px solid var(--accent); }

.stat-number {
    font-family: 'Playfair Display', serif;
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary);
}

.stat-label { color: var(--text-secondary); font-size: 0.9rem; margin-top: 0.25rem; }

.admin-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

.admin-section {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: var(--radius);
    border: 1px solid var(--border);
}

.admin-section h2 { font-size: 1.25rem; margin-bottom: 1rem; }

.admin-links {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 0.75rem;
}

.admin-link-card {
    display: block;
    padding: 1rem;
    background: var(--bg);
    border-radius: var(--radius);
    text-align: center;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all var(--transition);
    text-decoration: none;
    color: var(--text);
}

.admin-link-card:hover {
    background: var(--primary);
    color: #FFF;
    transform: translateY(-2px);
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.admin-table th {
    text-align: left;
    padding: 0.75rem;
    background: var(--bg);
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 2px solid var(--border);
}

.admin-table td {
    padding: 0.75rem;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}

.admin-table tr:hover { background: var(--bg); }
.admin-table tr.unread { background: #FFF8E1; }
.admin-table tr.unread:hover { background: #FFF3CD; }

.admin-form-container {
    max-width: 700px;
    margin: 0 auto;
}

.search-form {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.search-form .form-control { max-width: 400px; }

.inline-form { display: inline; }

/* --- Content Tree --- */
.content-tree {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 1.5rem;
    overflow: hidden;
}

.tree-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    background: var(--primary);
    color: #FFF;
}

.tree-header h2 { color: #FFF; margin: 0; font-size: 1.1rem; }

.tree-actions {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.tree-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1.5rem;
    border-bottom: 1px solid var(--border);
}

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

.tree-level-1 {
    flex-direction: column;
    align-items: stretch;
    padding: 0;
}

.tree-item-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1.5rem;
    background: #F0F4F8;
}

.tree-item-header h3 { margin: 0; font-size: 0.95rem; }

.tree-level-2 {
    padding-left: 3rem;
    font-size: 0.9rem;
}

/* --- Message Detail --- */
.message-detail {
    background: var(--bg);
    padding: 1.5rem;
    border-radius: var(--radius);
    margin: 1.5rem 0;
}

.message-meta { margin-bottom: 1rem; }
.message-meta p { margin-bottom: 0.25rem; font-size: 0.9rem; }
.message-body { padding-top: 1rem; border-top: 1px solid var(--border); line-height: 1.7; }

/* --- Preview --- */
.preview-btn { margin-top: 0.5rem; }

.preview-pane {
    margin-top: 0.5rem;
    padding: 1rem;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    min-height: 100px;
}

/* --- Footer --- */
.footer {
    background: var(--primary);
    color: rgba(255,255,255,0.8);
    padding: 3rem 0 1.5rem;
    margin-top: auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer h4 {
    color: #FFF;
    font-size: 1rem;
    margin-bottom: 1rem;
}

.footer ul { list-style: none; }

.footer li {
    padding: 0.25rem 0;
    font-size: 0.9rem;
}

.footer a {
    color: rgba(255,255,255,0.7);
}

.footer a:hover { color: var(--accent); }

.footer-bottom {
    text-align: center;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255,255,255,0.15);
    font-size: 0.85rem;
    color: rgba(255,255,255,0.5);
}

/* --- Responsive --- */
@media (max-width: 1024px) {
    .about-grid { grid-template-columns: 1fr; }
    .about-photo { text-align: center; }
    .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    h1 { font-size: 1.75rem; }
    .hero h1 { font-size: 2.25rem; }
    .section { padding: 2.5rem 0; }

    .nav-toggle { display: block; }

    .nav-links {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--primary);
        flex-direction: column;
        padding: 1rem;
        box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    }

    .nav-links.show { display: flex; }

    .nav-links li { width: 100%; }
    .nav-links a { display: block; padding: 0.75rem 1rem; }

    .footer-grid { grid-template-columns: 1fr; gap: 1.5rem; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }

    .admin-header { flex-direction: column; gap: 1rem; align-items: flex-start; }
    .tree-header { flex-direction: column; gap: 0.5rem; align-items: flex-start; }
    .tree-item-header { flex-direction: column; gap: 0.5rem; align-items: flex-start; }
    .tree-level-2 { padding-left: 1.5rem; flex-direction: column; gap: 0.5rem; align-items: flex-start; }
    .tree-actions { flex-wrap: wrap; }

    .blog-grid { grid-template-columns: 1fr; }
    .search-form { flex-direction: column; }
    .search-form .form-control { max-width: 100%; }
}

@media (max-width: 480px) {
    .hero { padding: 3rem 0; }
    .hero h1 { font-size: 1.75rem; }
    .hero-subtitle { font-size: 1rem; }
    .card-grid { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: 1fr; }
    .auth-container { padding: 1.5rem; margin: 1rem; }
}