/* 1. Imports */
@import url('/assets/tokens.css');
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;700&display=swap');

/* 2. CSS Custom Properties (:root) */
:root {
    /* Palette */
    --bg: #0a0a0f;
    --surface: #111827;
    --surface-hover: #1e293b;
    --text-primary: #f0f0f5;
    --text-secondary: #8b95a5;
    --text-muted: #505868;
    
    --accent: #3b82f6;
    --accent-hover: #60a5fa;
    --accent-subtle: rgba(59, 130, 246, 0.12);
    
    --success: #22c55e;
    --danger: #ef4444;
    --warning: #f59e0b;
    
    --border: rgba(255, 255, 255, 0.06);
    --border-hover: rgba(255, 255, 255, 0.12);

    /* Spacing & Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 24px;
    --space-6: 32px;
    --space-8: 48px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.5);
    --ring-accent: 0 0 0 3px rgba(59, 130, 246, 0.15);

    /* Transitions */
    --transition-base: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 3. Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html, body {
    height: 100%;
}

body {
    background-color: var(--bg);
    background-image: radial-gradient(ellipse at top, #111827 0%, #0a0a0f 70%);
    background-attachment: fixed;
    color: var(--text-primary);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* 4. Typography */
h1, h2, h3, h4, h5, h6 {
    color: var(--text-primary);
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--space-4);
}

p {
    color: var(--text-secondary);
    margin-bottom: var(--space-4);
}

a {
    color: var(--accent);
    text-decoration: none;
    transition: var(--transition-base);
}

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

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

/* 5. Layout */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-4);
}

.page-wrapper {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.main-content {
    flex: 1;
    padding: var(--space-8) 0;
}

/* 6. Navigation */
.navbar, .public-nav {
    background: rgba(17, 24, 39, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    padding: var(--space-4) 0;
    position: sticky;
    top: 0;
    z-index: 50;
}

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

.nav-brand {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.nav-links {
    display: flex;
    gap: var(--space-5);
    align-items: center;
}

.nav-link {
    color: var(--text-secondary);
    font-weight: 500;
}

.nav-link:hover, .nav-link.active {
    color: var(--text-primary);
}

/* 7. Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-sm);
    font-weight: 500;
    font-family: inherit;
    text-align: center;
    cursor: pointer;
    border: 1px solid transparent;
    transition: var(--transition-base);
    background: transparent;
    color: var(--text-primary);
}

.btn:focus-visible {
    outline: none;
    box-shadow: var(--ring-accent);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
    background: var(--accent-hover);
    box-shadow: var(--ring-accent);
}

.btn-secondary {
    background: var(--surface-hover);
    border-color: var(--border);
}

.btn-secondary:hover:not(:disabled) {
    border-color: var(--border-hover);
    background: rgba(255,255,255,0.05);
}

.btn-outline {
    border-color: var(--border);
    color: var(--text-primary);
}

.btn-outline:hover:not(:disabled) {
    border-color: var(--accent);
    color: var(--accent);
}

/* 8. Forms & Inputs */
.form-group {
    margin-bottom: var(--space-4);
}

.form-label {
    display: block;
    margin-bottom: var(--space-2);
    font-weight: 500;
    color: var(--text-primary);
    font-size: 0.875rem;
}

.form-control {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: inherit;
    transition: var(--transition-base);
}

.form-control:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: var(--ring-accent);
}

.form-control::placeholder {
    color: var(--text-muted);
}

/* 9. Cards */
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: var(--space-5);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-base);
}

.card:hover {
    border-color: var(--border-hover);
    box-shadow: var(--shadow-md);
}

/* 10. Challenge Grid & Cards */
.challenge-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--space-5);
}

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

.challenge-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-3);
}

.challenge-title {
    font-size: 1.125rem;
    margin: 0;
}

.challenge-points {
    font-weight: 600;
    color: var(--accent);
    font-family: 'JetBrains Mono', monospace;
}

/* 11. Auth Pages */
.auth-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
}

.auth-card {
    width: 100%;
    max-width: 400px;
}

.auth-header {
    text-align: center;
    margin-bottom: var(--space-6);
}

/* 12. Scoreboard */
.scoreboard-container {
    margin-top: var(--space-6);
}

/* 13. Stats Cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-4);
    margin-bottom: var(--space-6);
}

.stat-card {
    text-align: center;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-1);
    font-family: 'JetBrains Mono', monospace;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* 14. Feed/Post */
.feed-container {
    max-width: 800px;
    margin: 0 auto;
}

.feed-item {
    margin-bottom: var(--space-4);
}

/* 15. Tables */
.table-responsive {
    overflow-x: auto;
}

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

.table th, .table td {
    padding: var(--space-3) var(--space-4);
    border-bottom: 1px solid var(--border);
    text-align: left;
}

.table th {
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.875rem;
    background: rgba(255,255,255,0.02);
}

.table tbody tr {
    transition: var(--transition-base);
}

.table tbody tr:hover {
    background: rgba(255,255,255,0.02);
}

/* 16. Profile Page */
.profile-header {
    display: flex;
    align-items: center;
    gap: var(--space-5);
    margin-bottom: var(--space-6);
}

.profile-avatar {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-sm);
    background: var(--surface-hover);
    border: 1px solid var(--border);
}

/* 17. Admin Page */
.admin-toolbar {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--space-5);
}

/* 18. Alerts */
.alert {
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-4);
    border: 1px solid transparent;
}

.alert-success {
    background: rgba(34, 197, 94, 0.1);
    border-color: rgba(34, 197, 94, 0.2);
    color: var(--success);
}

.alert-danger {
    background: rgba(239, 68, 68, 0.1);
    border-color: rgba(239, 68, 68, 0.2);
    color: var(--danger);
}

.alert-warning {
    background: rgba(245, 158, 11, 0.1);
    border-color: rgba(245, 158, 11, 0.2);
    color: var(--warning);
}

/* 19. Badges & Tags */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    background: var(--surface-hover);
    color: var(--text-secondary);
    border: 1px solid var(--border);
}

.badge-accent {
    background: var(--accent-subtle);
    color: var(--accent-hover);
    border-color: rgba(59, 130, 246, 0.2);
}

/* 20. Utility Classes */
.text-center { text-align: center; }
.mt-4 { margin-top: var(--space-4); }
.mb-4 { margin-bottom: var(--space-4); }
.flex { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.hidden { display: none; }

/* 21. Skeleton/Loading States */
.skeleton {
    background: linear-gradient(90deg, var(--surface) 25%, var(--surface-hover) 50%, var(--surface) 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
    border-radius: var(--radius-sm);
}

@keyframes skeleton-loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* 22. Responsive Breakpoints */
@media (max-width: 768px) {
    .challenge-grid {
        grid-template-columns: 1fr;
    }

    .nav-links {
        display: none;
    }

    .grid-2 {
        grid-template-columns: 1fr;
    }

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

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
}

/* ───────────────────────────────────────────────────────────
   Extended Component Library
   (Backward-compatible selectors for existing PHP pages)
   ─────────────────────────────────────────────────────────── */

/* Button Sizes */
.btn-sm {
    padding: 6px 12px;
    font-size: 0.8125rem;
}

.btn-lg {
    padding: 10px 20px;
    font-size: 1rem;
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
}

.btn-ghost:hover {
    background: rgba(255, 255, 255, 0.04);
    color: var(--text-primary);
}

/* Button gap helper */
.btn i,
.btn svg {
    margin-right: 6px;
}

/* Form compat — legacy selectors */
.form-input,
.auth-input,
input[type="text"],
input[type="password"],
input[type="email"],
input[type="url"],
input[type="search"],
input[type="number"],
textarea,
select {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.875rem;
    transition: var(--transition-base);
}

.form-input:focus,
.auth-input:focus,
input:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: var(--ring-accent);
}

.form-input::placeholder,
input::placeholder,
textarea::placeholder {
    color: var(--text-muted);
}

.form-error {
    font-size: 0.8125rem;
    color: var(--danger);
    margin-top: 4px;
}

.form-actions {
    display: flex;
    gap: var(--space-3);
    margin-top: var(--space-5);
}

/* Auth page compat */
.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
}

.auth-card {
    width: 100%;
    max-width: 420px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 2rem;
}

.auth-logo {
    text-align: center;
    margin-bottom: 1.5rem;
}

.auth-logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
}

.auth-logo p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

.auth-header {
    text-align: center;
    margin-bottom: 1.5rem;
}

.auth-header h2 { font-size: 1.25rem; margin-bottom: 0.25rem; }
.auth-header p { font-size: 0.875rem; }

.auth-footer {
    margin-top: 1.5rem;
    text-align: center;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.auth-footer a { font-weight: 500; }

/* Challenge card extended */
.challenge-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: var(--space-5);
    cursor: pointer;
    transition: var(--transition-base);
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.challenge-card:hover {
    border-color: var(--border-hover);
    box-shadow: var(--shadow-md);
    color: inherit;
}

.challenge-card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 8px;
}

.challenge-category {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--accent);
    background: var(--accent-subtle);
    padding: 2px 8px;
    border-radius: var(--radius-full, 9999px);
}

.challenge-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 0.8125rem;
    color: var(--text-muted);
    margin-top: 4px;
}

.challenge-meta span {
    display: flex;
    align-items: center;
    gap: 4px;
}

.solved-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    color: var(--success);
    font-weight: 500;
}

.challenge-progress {
    margin-top: auto;
    padding-top: 12px;
    border-top: 1px solid var(--border);
}

/* Scoreboard extended */
.scoreboard-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.scoreboard-table th {
    padding: 12px 16px;
    text-align: left;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    background: rgba(255, 255, 255, 0.02);
    border-bottom: 1px solid var(--border);
}

.scoreboard-table td {
    padding: 12px 16px;
    font-size: 0.875rem;
    border-bottom: 1px solid var(--border);
}

.scoreboard-table tr:last-child td { border-bottom: none; }
.scoreboard-table tr:hover td { background: rgba(255, 255, 255, 0.02); }

.scoreboard-rank {
    font-weight: 700;
    width: 3rem;
}

.scoreboard-rank.top-3 { color: var(--accent); }

.scoreboard-username {
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
}

.scoreboard-you-badge {
    font-size: 0.6875rem;
    font-weight: 700;
    text-transform: uppercase;
    padding: 2px 6px;
    background: var(--accent);
    color: #fff;
    border-radius: var(--radius-full, 9999px);
}

.scoreboard-score {
    font-weight: 600;
    text-align: right;
    font-variant-numeric: tabular-nums;
    font-family: var(--font-mono, monospace);
}

/* Stat card compat */
.stat-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: var(--space-5);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-base);
}

.stat-card:hover {
    border-color: var(--border-hover);
    box-shadow: var(--shadow-md);
}

.stat-card-label {
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 4px;
}

.stat-card-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    font-family: 'JetBrains Mono', monospace;
}

/* Feed compat */
.feed-post {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: var(--space-5);
    transition: var(--transition-base);
}

.feed-post:hover { box-shadow: var(--shadow-md); }

.feed-post-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.feed-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--accent-subtle);
    color: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    flex-shrink: 0;
}

.feed-author { font-weight: 600; font-size: 0.875rem; }
.feed-time { font-size: 0.8125rem; color: var(--text-muted); }
.feed-content { font-size: 0.9375rem; color: var(--text-secondary); line-height: 1.6; }

.feed-actions {
    display: flex;
    gap: 1.5rem;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid var(--border);
}

.feed-action {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.8125rem;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    transition: var(--transition-base);
}

.feed-action:hover {
    background: rgba(255, 255, 255, 0.04);
    color: var(--text-secondary);
}

/* Profile page extended */
.profile-page {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

.profile-head {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 3rem 2rem;
    margin-bottom: 2rem;
}

.profile-avatar {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: var(--accent-subtle);
    border: 3px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    margin-bottom: 1.5rem;
    color: var(--accent);
}

.profile-name {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    letter-spacing: -0.03em;
}

.profile-sub {
    font-size: 0.875rem;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: 600;
    margin-bottom: 1rem;
}

.profile-bio {
    color: var(--text-secondary);
    max-width: 600px;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.profile-social {
    display: flex;
    gap: 1rem;
}

.badge-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 1rem;
}

/* Admin page extended */
.admin-page {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

.admin-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 2rem;
    letter-spacing: -0.03em;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.admin-card,
.admin-stat-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.admin-stat-grid,
.analytics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.admin-btn,
.tab-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    background: var(--surface-hover);
    color: var(--text-primary);
    border: 1px solid var(--border);
    cursor: pointer;
    font-weight: 500;
    font-size: 0.875rem;
    transition: var(--transition-base);
}

.admin-btn:hover,
.tab-btn:hover {
    background: var(--accent);
    color: #fff;
}

.admin-btn.active,
.tab-btn.active {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}

.admin-input,
.admin-file-input {
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 10px 16px;
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    width: 100%;
    margin-bottom: 1rem;
    font-family: inherit;
    font-size: 0.875rem;
}

.admin-table,
.chall-table {
    width: 100%;
    border-collapse: collapse;
}

.admin-table th {
    text-align: left;
    padding: 12px 16px;
    color: var(--text-secondary);
    text-transform: uppercase;
    font-size: 0.8125rem;
    letter-spacing: 0.04em;
    border-bottom: 1px solid var(--border);
}

.admin-table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
}

.admin-table tr:hover td {
    background: rgba(255, 255, 255, 0.02);
}

.tab-nav {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}

.tab-panel { display: none; }
.tab-panel.active { display: block; }

.admin-form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 1.5rem;
}

.admin-form-group label {
    font-weight: 500;
    color: var(--text-secondary);
    font-size: 0.875rem;
    letter-spacing: 0.02em;
}

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

@media (max-width: 768px) {
    .span-2 { grid-column: span 1; }
}

.asc-num {
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent);
    font-family: 'JetBrains Mono', monospace;
}

.asc-label {
    font-size: 0.8125rem;
    text-transform: uppercase;
    color: var(--text-muted);
}

/* Role badges */
.role-badge {
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    border: 1px solid transparent;
}

.badge-admin { background: rgba(239, 68, 68, 0.1); color: var(--danger); border-color: rgba(239, 68, 68, 0.2); }
.badge-user { background: var(--accent-subtle); color: var(--accent); border-color: rgba(59, 130, 246, 0.2); }
.badge-banned { background: rgba(245, 158, 11, 0.1); color: var(--warning); border-color: rgba(245, 158, 11, 0.2); }

/* Notification items */
.notif-item {
    padding: 1rem;
    background: var(--surface);
    border-left: 3px solid var(--accent);
    border-radius: var(--radius-sm);
    margin-bottom: 1rem;
}

.notif-msg { color: var(--text-primary); margin-bottom: 4px; }
.notif-time { font-size: 0.8rem; color: var(--text-muted); }

/* Severity variants */
.sev-critical { border-left-color: var(--danger); background: rgba(239, 68, 68, 0.05); }
.sev-warning { border-left-color: var(--warning); background: rgba(245, 158, 11, 0.05); }
.sev-info { border-left-color: var(--accent); }

/* Empty state */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-muted);
}

.empty-state-icon { font-size: 2.5rem; margin-bottom: 1rem; opacity: 0.5; }
.empty-state-title { font-size: 1rem; font-weight: 600; color: var(--text-secondary); margin-bottom: 4px; }

/* Grid utility */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

/* Node card compat */
.node-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    transition: var(--transition-base);
}

.node-card:hover {
    border-color: var(--border-hover);
    box-shadow: var(--shadow-md);
}

/* Misc compat */
.text-muted { color: var(--text-muted); }
.text-accent { color: var(--accent); }
.text-right { text-align: right; }
.font-mono { font-family: 'JetBrains Mono', monospace; }
.mt-1 { margin-top: 4px; }
.mt-2 { margin-top: 8px; }
.mt-6 { margin-top: 1.5rem; }
.mb-6 { margin-bottom: 1.5rem; }
.gap-2 { gap: 8px; }
.gap-4 { gap: 16px; }
.flex-col { flex-direction: column; }

/* Skip link */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--accent);
    color: #fff;
    padding: 8px 16px;
    z-index: 100;
    border-radius: 0 0 var(--radius-sm) 0;
}

.skip-link:focus { top: 0; }

/* Wargame compat */
.campaign-card, .team-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 1.5rem;
}

.progress-wrapper {
    background: var(--surface-hover);
    height: 6px;
    border-radius: 3px;
    overflow: hidden;
    margin-top: 12px;
}

.progress-bar {
    background: var(--accent);
    height: 100%;
    border-radius: 3px;
    transition: width 0.3s ease;
}

.progress-text {
    font-size: 0.8125rem;
    color: var(--text-muted);
    margin-top: 6px;
    text-align: right;
    font-family: 'JetBrains Mono', monospace;
}

.level-item {
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    margin-bottom: 1rem;
    background: var(--surface);
    overflow: hidden;
}

.level-header {
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    background: rgba(255, 255, 255, 0.02);
    border-bottom: 1px solid var(--border);
    font-weight: 600;
}

.level-body { padding: 1rem; color: var(--text-secondary); }

.level-action {
    padding: 1rem;
    background: rgba(255, 255, 255, 0.02);
    border-top: 1px solid var(--border);
    display: flex;
    gap: 8px;
}

.level-action input { flex: 1; }

.status-completed { color: var(--success); }
.status-current { color: var(--accent); }
.status-locked { color: var(--text-muted); }

/* Hero section compat */
.hero-section {
    text-align: center;
    margin-bottom: 3rem;
}

.hero-section h1 {
    font-size: 2.5rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    margin-bottom: 0.5rem;
}

.hero-section p {
    color: var(--text-muted);
    font-size: 1.05rem;
}

/* Ticket / chat / labs / achievements compat */
.ticket-container,
.achievements-container,
.chat-container,
.labs-hero {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

.ticket-card,
.chart-container {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.row-actions {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

/* Tooltip */
.tooltip { position: relative; }
.tooltip::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    padding: 4px 8px;
    background: var(--text-primary);
    color: var(--bg);
    font-size: 0.75rem;
    border-radius: var(--radius-sm);
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.15s ease;
}
.tooltip:hover::after { opacity: 1; }

/* Neon text compat (subtle version) */
.neon-text-blue,
.neon-text-cyan {
    color: var(--accent);
}

/* Alert compat for dark mode */
.alert-info {
    background: rgba(6, 182, 212, 0.1);
    color: #06b6d4;
    border: 1px solid rgba(6, 182, 212, 0.2);
}

.alert-error {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.alert-success {
    background: rgba(34, 197, 94, 0.1);
    color: var(--success);
    border: 1px solid rgba(34, 197, 94, 0.2);
}

/* Member list */
.member-list { list-style: none; padding: 0; margin: 1rem 0; }
.member-list li {
    padding: 12px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.member-list li:last-child { border-bottom: none; }

/* Score display */
.score {
    text-align: right;
    color: var(--accent);
    font-weight: 600;
    font-variant-numeric: tabular-nums;
    font-family: 'JetBrains Mono', monospace;
}

/* Stat num compat */
.stat-num {
    font-family: 'JetBrains Mono', monospace;
    font-weight: 700;
    letter-spacing: -0.02em;
}


/* Fix Mobile Tables Overflow */
.table-wrapper, .sb-table-wrapper, .admin-table-wrapper {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin-bottom: var(--space-4);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
}

.sb-table, .admin-table, .scoreboard-table, .table {
    width: 100%;
    min-width: 600px; /* Force scrolling on small devices instead of squishing */
    border-collapse: collapse;
}

.sb-table th, .sb-table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    text-align: left;
}

.sb-table th {
    background: rgba(255, 255, 255, 0.02);
    font-weight: 600;
    color: var(--text-secondary);
}

@media (max-width: 768px) {
    /* Make sure all grids collapse gracefully on tablet/mobile */
    .sb-grid, .profile-grid, .admin-grid {
        display: grid;
        grid-template-columns: 1fr !important;
        gap: 1rem;
    }
}