/* Lumina v5.2 — Advanced Human-Centric UI/UX Design System */
:root {
    /* Color Palette - Dark Obsidian Engine */
    --bg: #080c14;
    --surface: rgba(15, 23, 42, 0.72);
    --surface-hover: rgba(30, 41, 59, 0.85);
    --surface-solid: #0f172a;
    --surface2: rgba(30, 41, 59, 0.65);
    --surface3: rgba(51, 65, 85, 0.55);
    --border: rgba(255, 255, 255, 0.08);
    --border-subtle: rgba(255, 255, 255, 0.04);
    --border-strong: rgba(255, 255, 255, 0.16);
    --border-primary: rgba(56, 189, 248, 0.4);
    
    /* Typography & Contrast */
    --text: #f8fafc;
    --text-secondary: #cbd5e1;
    --muted: #94a3b8;
    --text-inverse: #0f172a;

    /* Brand Accents */
    --primary: #38bdf8;
    --primary-hover: #0ea5e9;
    --primary-gradient: linear-gradient(135deg, #38bdf8 0%, #0ea5e9 100%);
    --primary-glow: rgba(56, 189, 248, 0.32);
    
    --accent: #10b981;
    --accent-hover: #059669;
    --accent-gradient: linear-gradient(135deg, #34d399 0%, #10b981 100%);
    --accent-glow: rgba(16, 185, 129, 0.3);

    --accent-purple: #a855f7;
    --accent-purple-glow: rgba(168, 85, 247, 0.3);
    --accent-pink: #ec4899;
    --accent-pink-glow: rgba(236, 72, 153, 0.3);
    --accent-amber: #f59e0b;
    --accent-amber-glow: rgba(245, 158, 11, 0.3);

    --danger: #f87171;
    --danger-glow: rgba(248, 113, 113, 0.35);

    /* Elevation & Shadows */
    --radius-sm: 8px;
    --radius: 16px;
    --radius-lg: 24px;
    --radius-pill: 9999px;

    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.25);
    --shadow: 0 10px 30px -4px rgba(0, 0, 0, 0.45), 0 0 0 1px var(--border);
    --shadow-lg: 0 20px 45px -8px rgba(0, 0, 0, 0.65), 0 0 0 1px var(--border-strong);
    --shadow-glow: 0 0 24px var(--primary-glow);

    --font: -apple-system, BlinkMacSystemFont, 'Inter', 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'SF Mono', Consolas, ui-monospace, monospace;
    --transition: 0.22s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-slow: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

[data-theme="light"] {
    --bg: #f8fafc;
    --surface: rgba(255, 255, 255, 0.85);
    --surface-hover: #ffffff;
    --surface-solid: #ffffff;
    --surface2: #f1f5f9;
    --surface3: #e2e8f0;
    --border: rgba(15, 23, 42, 0.08);
    --border-subtle: rgba(15, 23, 42, 0.04);
    --border-strong: rgba(15, 23, 42, 0.16);
    --border-primary: rgba(2, 132, 199, 0.35);
    
    --text: #0f172a;
    --text-secondary: #334155;
    --muted: #64748b;
    --text-inverse: #ffffff;

    --primary: #0284c7;
    --primary-hover: #0369a1;
    --primary-gradient: linear-gradient(135deg, #0284c7 0%, #0369a1 100%);
    --primary-glow: rgba(2, 132, 199, 0.2);

    --accent: #059669;
    --accent-hover: #047857;
    --accent-gradient: linear-gradient(135deg, #059669 0%, #047857 100%);
    --accent-glow: rgba(5, 150, 105, 0.2);

    --danger: #dc2626;
    --shadow: 0 10px 25px -4px rgba(0, 0, 0, 0.07), 0 0 0 1px var(--border);
    --shadow-lg: 0 20px 35px -6px rgba(0, 0, 0, 0.12), 0 0 0 1px var(--border-strong);
}

[data-theme="contrast"] {
    --bg: #000000;
    --surface: #0a0a0a;
    --surface-hover: #171717;
    --surface-solid: #000000;
    --surface2: #262626;
    --surface3: #404040;
    --border: #ffffff;
    --border-subtle: #a3a3a3;
    --border-strong: #ffffff;
    --border-primary: #ffff00;
    
    --text: #ffffff;
    --text-secondary: #f5f5f5;
    --muted: #d4d4d4;
    --text-inverse: #000000;

    --primary: #ffff00;
    --primary-hover: #facc15;
    --primary-gradient: #ffff00;
    --primary-glow: #ffff00;

    --accent: #00ff66;
    --accent-hover: #00dd55;
    --accent-gradient: #00ff66;
    --accent-glow: #00ff66;

    --danger: #ff3333;
    --shadow: none;
    --shadow-lg: none;
    --shadow-glow: none;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background-image: 
        radial-gradient(circle at 12% 16%, rgba(56, 189, 248, 0.08) 0%, transparent 45%),
        radial-gradient(circle at 88% 84%, rgba(168, 85, 247, 0.07) 0%, transparent 45%),
        radial-gradient(circle at 50% 50%, rgba(16, 185, 129, 0.03) 0%, transparent 60%);
    background-attachment: fixed;
    letter-spacing: -0.01em;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color var(--transition), opacity var(--transition);
}
a:hover { opacity: 0.9; }

/* Skip Link for WCAG AAA Accessibility */
.skip-link {
    position: absolute;
    left: -9999px;
    top: auto;
    width: 1px;
    height: 1px;
    overflow: hidden;
    z-index: 10000;
}
.skip-link:focus {
    position: fixed;
    top: 16px;
    left: 16px;
    width: auto;
    height: auto;
    padding: 10px 20px;
    background: var(--primary);
    color: #000;
    font-weight: 800;
    border-radius: var(--radius-sm);
    box-shadow: 0 4px 20px var(--primary-glow);
    outline: 2px solid #fff;
    outline-offset: 2px;
}

/* Navbar — Premium Glassmorphic Floating Header */
.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 28px;
    background: var(--surface);
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
    transition: background var(--transition), border-color var(--transition);
}

.nav-brand a {
    font-size: 1.45rem;
    font-weight: 900;
    letter-spacing: -0.03em;
    background: linear-gradient(135deg, #38bdf8 0%, #ec4899 50%, #4ade80 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: transform var(--transition);
}
.nav-brand a:hover {
    transform: scale(1.02);
}

.hamburger {
    display: none;
    background: var(--surface2);
    border: 1px solid var(--border);
    color: var(--text);
    font-size: 1.25rem;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    cursor: pointer;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
}
.hamburger:hover {
    background: var(--surface-hover);
    border-color: var(--border-strong);
}

.nav-links {
    display: flex;
    gap: 12px;
    list-style: none;
    align-items: center;
}

.nav-links li a {
    font-weight: 600;
    font-size: 0.88rem;
    color: var(--muted);
    padding: 6px 12px;
    border-radius: 8px;
    transition: all var(--transition);
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.nav-links li a:hover {
    color: var(--text);
    background: rgba(255, 255, 255, 0.05);
    text-decoration: none;
}
.nav-links li a.active {
    color: var(--primary);
    background: rgba(56, 189, 248, 0.1);
    border: 1px solid var(--border-primary);
}

#theme-select {
    background: var(--surface2);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 6px 14px;
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    outline: none;
}
#theme-select:hover, #theme-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px var(--primary-glow);
}

@media (max-width: 960px) {
    .hamburger { display: flex; }
    .nav-links {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--surface-solid);
        flex-direction: column;
        align-items: stretch;
        padding: 18px 24px;
        border-bottom: 1px solid var(--border-strong);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        box-shadow: var(--shadow-lg);
        max-height: calc(100vh - 64px);
        overflow-y: auto;
    }
    .nav-links.open { display: flex; animation: slideDownNav 0.25s ease forwards; }
    .nav-links li a { padding: 10px 14px; width: 100%; }

    /* Mobile In-Flow Dropdown Menus */
    .nav-dropdown {
        width: 100%;
        display: block;
    }
    .nav-dropdown-toggle {
        width: 100%;
        display: flex;
        justify-content: space-between;
        padding: 10px 14px;
        font-size: 0.95rem;
    }
    .nav-dropdown-menu {
        position: static;
        width: 100%;
        min-width: unset;
        box-shadow: none;
        border: 1px solid var(--border);
        background: var(--surface2);
        margin: 4px 0 8px 0;
        border-radius: 10px;
        animation: none;
        display: none;
    }
    .nav-dropdown:hover .nav-dropdown-menu,
    .nav-dropdown:focus-within .nav-dropdown-menu,
    .nav-dropdown.open .nav-dropdown-menu {
        display: flex;
    }
}
@keyframes slideDownNav {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Layout */
main {
    flex: 1;
    padding: 32px 24px;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
    animation: fadeIn 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}
.site-footer {
    text-align: center;
    padding: 32px 24px;
    color: var(--muted);
    font-size: 0.85rem;
    border-top: 1px solid var(--border);
    background: var(--surface);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    margin-top: auto;
}

/* Flash Messages */
.flash-container { margin-bottom: 24px; }
.flash {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 20px;
    border-radius: var(--radius-sm);
    margin-bottom: 12px;
    font-weight: 600;
    font-size: 0.92rem;
    border: 1px solid transparent;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: var(--shadow-sm);
    animation: slideInDown 0.3s ease;
}
@keyframes slideInDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}
.flash-success {
    background: rgba(16, 185, 129, 0.12);
    color: #6ee7b7;
    border-color: rgba(16, 185, 129, 0.35);
}
.flash-error {
    background: rgba(248, 113, 113, 0.12);
    color: #fca5a5;
    border-color: rgba(248, 113, 113, 0.35);
}
.flash-info {
    background: rgba(56, 189, 248, 0.12);
    color: #7dd3fc;
    border-color: rgba(56, 189, 248, 0.35);
}

/* Buttons — Polished Elevation & Tactile Feedback */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 22px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    font-weight: 700;
    font-size: 0.92rem;
    cursor: pointer;
    transition: all var(--transition);
    background: var(--surface2);
    color: var(--text);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    text-decoration: none;
    user-select: none;
}
.btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
    border-color: var(--border-strong);
    color: #fff;
    text-decoration: none;
}
.btn:active {
    transform: translateY(0) scale(0.97);
}
.btn-primary {
    background: var(--primary-gradient);
    color: #fff;
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow: 0 4px 18px var(--primary-glow);
}
.btn-primary:hover {
    box-shadow: 0 8px 28px var(--primary-glow);
    border-color: rgba(255, 255, 255, 0.4);
}
.btn-secondary {
    background: var(--surface2);
    border: 1px solid var(--border);
    color: var(--text-secondary);
}
.btn-secondary:hover {
    color: #fff;
    background: var(--surface-hover);
    border-color: var(--primary);
}
.btn-small {
    padding: 6px 14px;
    font-size: 0.82rem;
    border-radius: 8px;
}

/* Auth Pages */
.auth-container {
    max-width: 460px;
    margin: 54px auto;
    background: var(--surface);
    padding: 40px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-strong);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}
.auth-container h1 {
    font-size: 1.85rem;
    font-weight: 800;
    margin-bottom: 8px;
    background: linear-gradient(135deg, var(--text), var(--muted));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.auth-form {
    display: flex;
    flex-direction: column;
    gap: 18px;
    margin-top: 24px;
}
.auth-form label {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-secondary);
    letter-spacing: 0.02em;
}
.auth-form input, .auth-form select, .inline-form input, .inline-form select, .inline-form textarea {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    background: rgba(0, 0, 0, 0.3);
    color: var(--text);
    font-size: 0.95rem;
    font-family: inherit;
    transition: all var(--transition);
}
.auth-form input:focus, .inline-form input:focus, .inline-form textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
    background: rgba(0, 0, 0, 0.5);
}
.inline-form {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 14px;
    align-items: flex-end;
}
.inline-form input, .inline-form select, .inline-form textarea { flex: 1 1 180px; }
.inline-form textarea { min-height: 80px; resize: vertical; }

/* Competitions */
.comp-page { display: grid; grid-template-columns: 1fr 340px; gap: 22px; }
.comp-main { min-width: 0; }
.comp-chat { background: var(--surface); padding: 18px; border-radius: var(--radius); height: calc(100vh - 200px); display: flex; flex-direction: column; border: 1px solid var(--border); }
.chat-log { flex: 1; overflow-y: auto; font-size: 0.88rem; padding-right: 6px; }
.chat-msg { margin-bottom: 8px; word-break: break-word; }
.chat-msg small { color: var(--muted); font-size: 0.72rem; }
.chat-form { display: flex; gap: 8px; margin-top: 10px; }
.chat-form input { flex: 1; padding: 8px; border-radius: 8px; border: 1px solid var(--border); background: var(--bg); color: var(--text); }
.progress-area { margin-top: 16px; }
.prog-wrap { background: var(--surface2); border-radius: 8px; height: 26px; margin-bottom: 10px; overflow: hidden; border: 1px solid var(--border); }
.prog-bar { background: linear-gradient(90deg, var(--primary), #0ea5e9); height: 100%; display: flex; align-items: center; padding-left: 10px; font-size: 0.78rem; font-weight: 700; color: #fff; transition: width 0.3s ease; white-space: nowrap; background-size: 200% 100%; animation: shimmer 2s infinite; }
@keyframes shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

@media (max-width: 920px) {
    .comp-page { grid-template-columns: 1fr; }
    .comp-chat { height: 320px; }
}

/* Game pages */
.game-page { display: grid; grid-template-columns: 1fr 320px; gap: 22px; }
.game-main { min-width: 0; }
.game-sidebar { background: var(--surface); padding: 18px; border-radius: var(--radius); border: 1px solid var(--border); }
.player-card { padding: 10px 14px; border-radius: 10px; background: var(--surface2); margin-bottom: 10px; font-weight: 600; border: 1px solid var(--border); }
.game-chat { margin-top: 12px; }
.status-badge { display: inline-block; padding: 6px 14px; border-radius: 20px; background: var(--surface2); font-weight: 700; font-size: 0.88rem; margin-bottom: 14px; border: 1px solid var(--border); }
.status-badge.racing { background: var(--accent); color: #000; border-color: var(--accent); }

/* Chess board */
.chess-board-container { display: flex; justify-content: center; align-items: center; min-height: 420px; padding: 20px; }
.chess-board { display: flex; flex-direction: column; border: 3px solid var(--border); border-radius: 6px; overflow: hidden; box-shadow: 0 8px 32px rgba(0,0,0,0.3); }
.chess-row { display: flex; }
.chess-square { width: 56px; height: 56px; display: flex; align-items: center; justify-content: center; font-size: 2.2rem; cursor: pointer; user-select: none; transition: background 0.15s; }
.chess-square.light { background: #e2e8f0; color: #0f172a; }
.chess-square.dark { background: #475569; color: #f8fafc; }
[data-theme="light"] .chess-square.light { background: #f1f5f9; }
[data-theme="light"] .chess-square.dark { background: #94a3b8; }
.chess-square.selected { box-shadow: inset 0 0 0 3px var(--primary); }
.chess-square:hover { filter: brightness(1.15); }

/* Checkers board */
.checkers-board-container { display: flex; justify-content: center; align-items: center; min-height: 420px; padding: 20px; }
.checkers-board { display: flex; flex-direction: column; border: 3px solid var(--border); border-radius: 6px; overflow: hidden; box-shadow: 0 8px 32px rgba(0,0,0,0.3); }
.checkers-row { display: flex; }
.checkers-square { width: 56px; height: 56px; display: flex; align-items: center; justify-content: center; }
.checkers-square.light { background: #e2e8f0; }
.checkers-square.dark { background: #475569; }
[data-theme="light"] .checkers-square.light { background: #f1f5f9; }
[data-theme="light"] .checkers-square.dark { background: #94a3b8; }
.checkers-square.selected { box-shadow: inset 0 0 0 3px var(--primary); }
.checkers-square:hover { filter: brightness(1.15); }
.checkers-piece { width: 42px; height: 42px; border-radius: 50%; border: 2px solid rgba(0,0,0,0.3); transition: transform 0.2s; box-shadow: 0 2px 8px rgba(0,0,0,0.3); }
.checkers-piece.red { background: radial-gradient(circle at 30% 30%, #ff6b6b, #ef4444); }
.checkers-piece.black { background: radial-gradient(circle at 30% 30%, #4b5563, #111827); }
.checkers-piece.king::after { content: '♔'; display: block; text-align: center; line-height: 38px; font-size: 1.2rem; color: #fff; text-shadow: 0 1px 2px rgba(0,0,0,0.5); }

/* Comp hub */
.comp-hub, .games-hub, .tournaments-page { max-width: 960px; margin: 0 auto; }
.game-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 18px; margin-top: 22px; }
.game-card { background: var(--surface); padding: 26px; border-radius: var(--radius); box-shadow: var(--shadow); border: 1px solid var(--border); transition: transform var(--transition); }
.game-card:hover { transform: translateY(-4px); box-shadow: 0 12px 40px rgba(0,0,0,0.25); }
.game-card h2 { margin-bottom: 8px; font-size: 1.15rem; }
.game-card p { color: var(--muted); font-size: 0.9rem; margin-bottom: 14px; }
.room-form { margin-top: 12px; display: flex; flex-direction: column; gap: 8px; }
.room-form input { padding: 10px; border-radius: 8px; border: 1px solid var(--border); background: var(--bg); color: var(--text); }

/* Game containers */
.game-container { max-width: 720px; margin: 0 auto; text-align: center; }
.game-meta { display: flex; justify-content: center; gap: 18px; margin-bottom: 18px; font-weight: 700; font-size: 1.1rem; color: var(--primary); }
.math-problem { font-size: 2.4rem; font-weight: 800; margin: 24px 0; min-height: 60px; }
.math-input { font-size: 1.6rem; padding: 10px; width: 200px; text-align: center; border-radius: 10px; border: 1px solid var(--border); background: var(--bg); color: var(--text); }
.difficulty-select { margin-bottom: 14px; }
.mem-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; max-width: 320px; margin: 20px auto; }
.mem-cell { aspect-ratio: 1; border-radius: 12px; cursor: pointer; transition: transform 0.2s, filter 0.2s; border: 2px solid var(--border); }
.mem-cell:hover { transform: scale(1.05); }
.mem-flash { filter: brightness(2.5); transform: scale(1.1); }
.reaction-box { width: 200px; height: 200px; margin: 24px auto; border-radius: var(--radius); display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 1.3rem; cursor: pointer; user-select: none; transition: background 0.2s; border: 2px solid var(--border); }
.reaction-box.waiting { background: var(--surface2); }
.reaction-box.ready { background: var(--accent); color: #000; box-shadow: 0 0 40px var(--accent-glow); animation: readyPulse 0.5s ease infinite alternate; }
@keyframes readyPulse { from { box-shadow: 0 0 20px var(--accent-glow); } to { box-shadow: 0 0 60px var(--accent-glow); } }
.pat-display { font-size: 2rem; margin: 20px 0; min-height: 50px; }
.pat-options { display: flex; justify-content: center; gap: 12px; margin: 20px 0; }
.word-letters { display: flex; justify-content: center; gap: 10px; margin: 20px 0; }
.word-letter { width: 48px; height: 48px; display: flex; align-items: center; justify-content: center; font-size: 1.4rem; font-weight: 800; border-radius: 10px; background: var(--surface2); border: 1px solid var(--border); text-transform: uppercase; }
.word-input { font-size: 1.2rem; padding: 10px; width: 280px; text-align: center; border-radius: 10px; border: 1px solid var(--border); background: var(--bg); color: var(--text); }
.word-found { display: flex; flex-wrap: wrap; justify-content: center; gap: 6px; margin-top: 14px; min-height: 30px; }
.word-tag { padding: 4px 10px; border-radius: 6px; background: var(--accent); color: #000; font-weight: 700; font-size: 0.85rem; animation: tagPop 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275); }
@keyframes tagPop { from { transform: scale(0); opacity: 0; } to { transform: scale(1); opacity: 1; } }

/* Leaderboard */
.leaderboard-page { max-width: 960px; margin: 0 auto; }
.filter-bar { display: flex; gap: 10px; margin-bottom: 18px; }
.filter-bar select { padding: 8px 14px; border-radius: 8px; border: 1px solid var(--border); background: var(--bg); color: var(--text); }

/* Analytics & Biometric Heatmap */
.analytics-section {
    background: var(--surface);
    padding: 30px;
    border-radius: var(--radius);
    margin-bottom: 26px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    transition: border-color var(--transition);
}
.analytics-section h2 {
    font-size: 1.25rem;
    font-weight: 800;
    margin-bottom: 20px;
    letter-spacing: -0.01em;
    display: flex;
    align-items: center;
    gap: 8px;
}
.heatmap-container {
    display: flex;
    justify-content: center;
    overflow-x: auto;
    padding: 12px 0;
}
.keyboard {
    display: inline-block;
    background: rgba(15, 23, 42, 0.9);
    padding: 20px;
    border-radius: 20px;
    border: 1px solid var(--border-strong);
    box-shadow: inset 0 2px 8px rgba(0,0,0,0.5), 0 8px 30px rgba(0,0,0,0.4);
}
.kb-row {
    display: flex;
    gap: 6px;
    margin-bottom: 6px;
    justify-content: center;
}
.kb-key {
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    background: linear-gradient(180deg, rgba(30, 41, 59, 0.9) 0%, rgba(15, 23, 42, 0.9) 100%);
    font-size: 0.82rem;
    font-weight: 800;
    text-transform: uppercase;
    color: var(--text-secondary);
    border: 1px solid var(--border);
    box-shadow: 0 3px 0 rgba(0, 0, 0, 0.4), 0 2px 4px rgba(0,0,0,0.2);
    transition: all var(--transition);
    user-select: none;
}
.kb-key:hover {
    transform: translateY(-2px);
    border-color: var(--primary);
    color: #fff;
}
.kb-space {
    width: 240px;
}
.heat-low {
    background: linear-gradient(180deg, rgba(56, 189, 248, 0.25) 0%, rgba(14, 165, 233, 0.35) 100%);
    color: #7dd3fc;
    border-color: rgba(56, 189, 248, 0.5);
    box-shadow: 0 3px 0 rgba(0,0,0,0.4), 0 0 10px rgba(56, 189, 248, 0.3);
}
.heat-med {
    background: linear-gradient(180deg, rgba(245, 158, 11, 0.3) 0%, rgba(217, 119, 6, 0.4) 100%);
    color: #fde047;
    border-color: rgba(245, 158, 11, 0.6);
    box-shadow: 0 3px 0 rgba(0,0,0,0.4), 0 0 14px rgba(245, 158, 11, 0.4);
}
.heat-high {
    background: linear-gradient(180deg, rgba(239, 68, 68, 0.35) 0%, rgba(185, 28, 28, 0.5) 100%);
    color: #fca5a5;
    border-color: rgba(239, 68, 68, 0.7);
    box-shadow: 0 3px 0 rgba(0,0,0,0.4), 0 0 16px rgba(239, 68, 68, 0.5);
    animation: heatPulse 2s infinite alternate;
}
@keyframes heatPulse {
    from { box-shadow: 0 3px 0 rgba(0,0,0,0.4), 0 0 8px rgba(239, 68, 68, 0.3); }
    to { box-shadow: 0 3px 0 rgba(0,0,0,0.4), 0 0 20px rgba(239, 68, 68, 0.7); }
}

/* Badges */
.badges-page { max-width: 1000px; margin: 0 auto; }
.badge-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 18px;
    margin-top: 24px;
}
.badge-card {
    background: var(--surface);
    padding: 24px;
    border-radius: var(--radius);
    text-align: center;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    transition: transform var(--transition), box-shadow var(--transition);
}
.badge-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}
.badge-card.earned {
    border-color: var(--accent);
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.08), rgba(56, 189, 248, 0.06));
    box-shadow: 0 4px 20px rgba(16, 185, 129, 0.15);
}
.badge-card.locked { opacity: 0.45; filter: grayscale(0.7); }
.badge-icon { font-size: 2.6rem; margin-bottom: 12px; }

/* Teacher & Monitor */
.teacher-page { max-width: 1000px; margin: 0 auto; }
.teacher-section {
    background: var(--surface);
    padding: 28px;
    border-radius: var(--radius);
    margin-bottom: 24px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
}
.monitor-page { max-width: 1200px; margin: 0 auto; }
.monitor-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
    gap: 18px;
    margin-top: 20px;
}
.monitor-card {
    background: var(--surface);
    padding: 20px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    text-align: center;
    transition: transform 0.2s, box-shadow 0.2s;
    border: 1px solid var(--border);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}
.monitor-card.pulse {
    transform: scale(1.04);
    border-color: var(--primary);
    box-shadow: 0 0 24px var(--primary-glow);
    animation: pulseGlow 1s ease;
}
@keyframes pulseGlow {
    0% { box-shadow: 0 0 0 0 var(--primary-glow); }
    70% { box-shadow: 0 0 0 14px transparent; }
    100% { box-shadow: 0 0 0 0 transparent; }
}
.monitor-card h4 { font-size: 1.05rem; margin-bottom: 10px; font-weight: 700; }
.monitor-wpm { font-size: 1.7rem; font-weight: 900; color: var(--primary); }
.monitor-acc { font-size: 0.92rem; color: var(--muted); }
.monitor-room { font-size: 0.85rem; margin-top: 8px; color: var(--accent); font-weight: 700; }

/* Profile */
.profile-page { max-width: 1000px; margin: 0 auto; }
.profile-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; margin-top: 24px; }
.profile-card { background: var(--surface); padding: 24px; border-radius: var(--radius); box-shadow: var(--shadow); border: 1px solid var(--border); }
.role-badge { display: inline-block; padding: 3px 12px; border-radius: 12px; background: var(--surface2); font-size: 0.75rem; text-transform: uppercase; margin-left: 8px; font-weight: 700; color: var(--muted); border: 1px solid var(--border); }

/* Hero */
.hero { text-align: center; padding: 70px 24px; }
.hero h1 { font-size: 3.2rem; margin-bottom: 14px; background: linear-gradient(135deg, var(--primary), var(--accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.hero p { font-size: 1.15rem; color: var(--muted); max-width: 620px; margin: 0 auto 28px; }
.hero-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.features { padding: 50px 24px; }
.features h2 { text-align: center; margin-bottom: 28px; font-size: 1.6rem; }
.feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 18px; }
.feature-card { background: var(--surface); padding: 26px; border-radius: var(--radius); box-shadow: var(--shadow); border: 1px solid var(--border); transition: transform var(--transition); }
.feature-card:hover { transform: translateY(-4px); box-shadow: 0 12px 40px rgba(0,0,0,0.25); }
.feature-card h3 { margin-bottom: 8px; color: var(--primary); font-size: 1.1rem; }

/* API docs */
.api-docs { max-width: 860px; margin: 0 auto; }
.api-endpoint { background: var(--surface); padding: 22px; border-radius: var(--radius); margin-bottom: 18px; box-shadow: var(--shadow); border: 1px solid var(--border); }
.api-endpoint pre { background: var(--bg); padding: 14px; border-radius: 8px; overflow-x: auto; font-size: 0.88rem; margin-top: 10px; border: 1px solid var(--border); }

/* Certificates */
.certificates-page { max-width: 960px; margin: 0 auto; }
.cert-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; margin-top: 22px; }
.cert-card { background: var(--surface); padding: 22px; border-radius: var(--radius); text-align: center; box-shadow: var(--shadow); border: 1px solid var(--border); transition: transform var(--transition); }
.cert-card:hover { transform: translateY(-4px); }
.cert-icon { font-size: 2.5rem; margin-bottom: 8px; }

/* Parent portal */
.parent-page { max-width: 960px; margin: 0 auto; }
.parent-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 18px; margin-top: 22px; }
.parent-card { background: var(--surface); padding: 22px; border-radius: var(--radius); box-shadow: var(--shadow); border: 1px solid var(--border); }

/* Tournament */
.tournament-section { background: var(--surface); padding: 22px; border-radius: var(--radius); margin-bottom: 18px; box-shadow: var(--shadow); border: 1px solid var(--border); }
.tournament-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 14px; margin-top: 14px; }
.tournament-card { padding: 18px; border-radius: 10px; background: var(--surface2); border: 1px solid var(--border); }
.bracket-page { max-width: 960px; margin: 0 auto; }
.bracket-container { display: flex; gap: 28px; overflow-x: auto; padding-bottom: 14px; }
.bracket-round { min-width: 220px; }
.bracket-round h3 { font-size: 0.9rem; color: var(--muted); text-transform: uppercase; margin-bottom: 10px; }
.bracket-match { background: var(--surface); padding: 14px; border-radius: 10px; margin-bottom: 10px; border: 1px solid var(--border); }
.bracket-match.complete { border-color: var(--accent); }
.bracket-player { padding: 6px 10px; border-radius: 6px; font-weight: 600; }
.bracket-player.winner { background: rgba(74,222,128,0.15); color: var(--accent); }
.bracket-vs { text-align: center; font-size: 0.78rem; color: var(--muted); margin: 4px 0; }
.bracket-score { text-align: center; font-size: 0.82rem; color: var(--primary); font-weight: 700; margin-top: 6px; }

/* Misc */
.page { max-width: 860px; margin: 0 auto; }
code { background: var(--surface2); padding: 2px 8px; border-radius: 5px; font-family: ui-monospace, monospace; font-size: 0.88em; }
.badge { display: inline-block; padding: 3px 10px; border-radius: 6px; background: var(--surface2); font-size: 0.78rem; text-transform: uppercase; font-weight: 700; border: 1px solid var(--border); }

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    * { animation: none !important; transition: none !important; }
}

/* Loading & Transitions */
.page-loader {
    position: fixed; top: 0; left: 0; right: 0; bottom: 0;
    background: var(--bg); display: flex; align-items: center; justify-content: center;
    z-index: 9999; transition: opacity 0.4s ease;
}
.page-loader.hidden { opacity: 0; pointer-events: none; }
.spinner {
    width: 48px; height: 48px; border: 4px solid var(--surface2);
    border-top-color: var(--primary); border-radius: 50%;
    animation: spin 1s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

/* Error page */
.error-page { text-align: center; padding: 100px 24px; }
.error-page h1 { font-size: 6rem; font-weight: 800; color: var(--primary); margin-bottom: 12px; }
.error-page p { font-size: 1.2rem; color: var(--muted); margin-bottom: 24px; }

/* Empty states */
.empty-state { text-align: center; padding: 40px 24px; color: var(--muted); }
.empty-state-icon { font-size: 3rem; margin-bottom: 12px; opacity: 0.5; }

/* Improved focus states */
input:focus, select:focus, textarea:focus, button:focus {
    outline: none; box-shadow: 0 0 0 3px var(--primary-glow);
}

/* Scrollbar styling */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--surface2); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--muted); }

/* Selection color */
::selection { background: var(--primary-glow); color: var(--text); }
/* Responsive game boards */
.game-main { min-width: 0; overflow-x: auto; }
.chess-board-container, .checkers-board-container { display: flex; justify-content: center; align-items: center; min-height: 420px; padding: 20px; }

@media (max-width: 700px) {
    .game-page { grid-template-columns: 1fr; }
    .game-sidebar { height: auto; max-height: 400px; }
    .chess-square, .checkers-square { width: 42px; height: 42px; font-size: 1.6rem; }
    .checkers-piece { width: 32px; height: 32px; }
    .checkers-piece.king::after { line-height: 28px; font-size: 1rem; }
}
@media (max-width: 420px) {
    .chess-square, .checkers-square { width: 36px; height: 36px; font-size: 1.3rem; }
    .checkers-piece { width: 26px; height: 26px; }
    .checkers-piece.king::after { line-height: 22px; font-size: 0.85rem; }
    .chess-board-container, .checkers-board-container { padding: 8px; min-height: 300px; }
    .typing-arena { padding: 14px; }
    .passage-display { font-size: 1.1rem; }
    .game-container { padding: 0 10px; }
    .math-problem { font-size: 1.8rem; }
    .mem-grid { max-width: 260px; gap: 8px; }
    .reaction-box { width: 160px; height: 160px; }
}

/* =========================================================
   Lumina Neurodiversity & Cognitive Accessibility Matrix
   ========================================================= */
.dyslexic-mode, [data-font="dyslexic"] {
    font-family: 'OpenDyslexic', 'Lexend', 'Comic Sans MS', sans-serif !important;
    letter-spacing: 0.08em !important;
    word-spacing: 0.18em !important;
    line-height: 1.9 !important;
}
.dyslexic-mode .passage-display {
    font-size: 1.45rem !important;
    letter-spacing: 0.1em !important;
    line-height: 2.1 !important;
}

/* Bionic Reading Fixation */
.bionic-fixation .char.bionic-bold {
    font-weight: 800 !important;
    color: #ffffff !important;
    text-shadow: 0 0 1px rgba(255,255,255,0.8);
}
[data-theme="light"] .bionic-fixation .char.bionic-bold {
    color: #000000 !important;
    text-shadow: 0 0 1px rgba(0,0,0,0.4);
}

/* Attentional Stamina & Cognitive Micro-Metrics */
.stamina-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px 24px;
    margin-top: 18px;
}
.stamina-meter {
    height: 12px;
    background: rgba(148,163,184,0.2);
    border-radius: 6px;
    overflow: hidden;
    margin: 8px 0;
}
.stamina-fill {
    height: 100%;
    border-radius: 6px;
    transition: width 0.5s ease;
}
.stamina-high { background: linear-gradient(90deg, #38bdf8, #4ade80); }
.stamina-med { background: linear-gradient(90deg, #f59e0b, #fbbf24); }
.stamina-low { background: linear-gradient(90deg, #ef4444, #f87171); }

/* Team Cognitive Relay */
.relay-arena {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-top: 24px;
}
@media (max-width: 860px) {
    .relay-arena { grid-template-columns: 1fr; }
}
.team-pod {
    background: var(--surface);
    border: 2px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    position: relative;
    overflow: hidden;
}
.team-pod.active-turn {
    border-color: var(--primary);
    box-shadow: 0 0 24px var(--primary-glow);
}
.team-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border);
    padding-bottom: 12px;
    margin-bottom: 16px;
}
.team-title { font-size: 1.4rem; font-weight: 800; }
.baton-pill {
    background: rgba(56,189,248,0.2);
    border: 1px solid var(--primary);
    color: var(--primary);
    padding: 4px 12px;
    border-radius: 16px;
    font-size: 0.85rem;
    font-weight: 700;
}
.relay-legs {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.relay-leg-item {
    background: var(--surface-solid);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 14px 18px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.relay-leg-item.leg-active {
    border-color: var(--accent);
    background: rgba(74,222,128,0.1);
}
.relay-leg-item.leg-cleared {
    border-color: var(--accent);
    opacity: 0.8;
}

/* ==========================================================================
   Lumina v5.2 World-Class Navigation, Command Palette & Mobile Dock
   ========================================================================== */

/* Dropdown Menu System */
.nav-dropdown {
    position: relative;
    display: inline-block;
}
.nav-dropdown-toggle {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    background: transparent;
    border: none;
    cursor: pointer;
    font-family: inherit;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--muted);
    padding: 6px 12px;
    border-radius: 8px;
    transition: all var(--transition);
}
.nav-dropdown-toggle:hover,
.nav-dropdown:hover .nav-dropdown-toggle,
.nav-dropdown-toggle:focus-visible {
    color: var(--text);
    background: rgba(255, 255, 255, 0.06);
    outline: none;
}
.nav-dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 240px;
    background: var(--surface-solid);
    border: 1px solid var(--border-strong);
    border-radius: 14px;
    padding: 8px;
    box-shadow: var(--shadow-lg);
    display: none;
    flex-direction: column;
    gap: 4px;
    z-index: 1000;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    animation: dropIn 0.2s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}
.nav-dropdown-menu.right-aligned {
    left: auto;
    right: 0;
}
.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown:focus-within .nav-dropdown-menu {
    display: flex;
}
@keyframes dropIn {
    from { opacity: 0; transform: translateY(-6px) scale(0.98); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}
.nav-dropdown-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    border-radius: 8px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.88rem;
    font-weight: 500;
    transition: all var(--transition);
}
.nav-dropdown-item:hover,
.nav-dropdown-item:focus-visible {
    background: var(--surface2);
    color: var(--text);
    transform: translateX(2px);
    outline: none;
}
.nav-dropdown-item .item-icon {
    font-size: 1.15rem;
    width: 22px;
    text-align: center;
    flex-shrink: 0;
}
.nav-dropdown-item .item-title {
    font-weight: 600;
    color: var(--text);
}
.nav-dropdown-item .item-desc {
    font-size: 0.76rem;
    color: var(--muted);
}
.nav-divider {
    height: 1px;
    background: var(--border);
    margin: 6px 0;
}

/* Command Palette Trigger Button */
.cmd-palette-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--surface2);
    border: 1px solid var(--border);
    color: var(--muted);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.82rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
    user-select: none;
}
.cmd-palette-btn:hover {
    border-color: var(--primary);
    color: var(--text);
    background: var(--surface3);
}
.cmd-kbd {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 2px 6px;
    font-size: 0.72rem;
    font-family: var(--font-mono);
    color: var(--text);
}

/* Inbox & Badges */
.inbox-badge {
    background: linear-gradient(135deg, #ec4899, #ef4444);
    color: #fff;
    font-size: 0.72rem;
    font-weight: 800;
    border-radius: 10px;
    padding: 2px 7px;
    margin-left: 4px;
    box-shadow: 0 0 10px rgba(236, 72, 153, 0.5);
    animation: pulse 2s infinite;
}

/* Command Palette Modal Overlay */
.cmd-palette-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 100000;
    display: none;
    align-items: flex-start;
    justify-content: center;
    padding-top: 12vh;
    animation: fadeIn 0.18s ease;
}
.cmd-palette-modal {
    width: 100%;
    max-width: 580px;
    background: var(--surface-solid);
    border: 1px solid var(--border-strong);
    border-radius: 16px;
    box-shadow: var(--shadow-lg), 0 0 32px rgba(56, 189, 248, 0.15);
    overflow: hidden;
    animation: modalPop 0.22s cubic-bezier(0.16, 1, 0.3, 1);
}
@keyframes modalPop {
    from { opacity: 0; transform: scale(0.96) translateY(-10px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}
.cmd-palette-search {
    display: flex;
    align-items: center;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    gap: 12px;
}
.cmd-palette-search input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    color: var(--text);
    font-size: 1.1rem;
    font-family: inherit;
}
.cmd-palette-search input::placeholder {
    color: var(--muted);
}
.cmd-palette-list {
    max-height: 380px;
    overflow-y: auto;
    padding: 10px;
}
.cmd-category-title {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--muted);
    padding: 8px 12px 4px;
}
.cmd-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 14px;
    border-radius: 10px;
    cursor: pointer;
    color: var(--text-secondary);
    transition: all 0.15s ease;
    text-decoration: none;
}
.cmd-item:hover,
.cmd-item.selected {
    background: rgba(56, 189, 248, 0.15);
    color: var(--text);
}
.cmd-item .item-meta {
    display: flex;
    align-items: center;
    gap: 10px;
}
.cmd-item .item-badge {
    font-size: 0.72rem;
    font-weight: 600;
    background: var(--surface2);
    color: var(--muted);
    padding: 2px 8px;
    border-radius: 6px;
}

/* Mobile Bottom Dock (Smartphones & Tablets) */
.mobile-bottom-dock {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 64px;
    background: var(--surface-solid);
    border-top: 1px solid var(--border);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    z-index: 999;
    padding: 0 8px;
}
.mobile-dock-links {
    display: flex;
    height: 100%;
    align-items: center;
    justify-content: space-around;
    list-style: none;
    margin: 0;
    padding: 0;
}
.mobile-dock-links a {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
    color: var(--muted);
    text-decoration: none;
    font-size: 0.72rem;
    font-weight: 600;
    padding: 6px 12px;
    border-radius: 8px;
    transition: all var(--transition);
}
.mobile-dock-links a.active,
.mobile-dock-links a:hover {
    color: var(--primary);
}
.mobile-dock-links a span.dock-icon {
    font-size: 1.25rem;
}

@media (max-width: 768px) {
    .mobile-bottom-dock {
        display: block;
        padding-bottom: max(6px, env(safe-area-inset-bottom));
        height: calc(58px + env(safe-area-inset-bottom, 0px));
    }
    body {
        padding-bottom: calc(72px + env(safe-area-inset-bottom, 0px)); /* clearance for bottom dock */
    }
    .cmd-palette-btn span.cmd-text {
        display: none;
    }
    .cmd-kbd {
        display: none;
    }
    main {
        padding: 16px 12px;
    }
    .stat-grid, .grid-3, .grid-2 {
        grid-template-columns: 1fr;
    }
    .modal-content, .card {
        border-radius: 12px;
    }
}

/* Universal Typing Arena & Hidden Input Standards */
.hidden-input {
    position: absolute !important;
    opacity: 0 !important;
    pointer-events: none !important;
    width: 0 !important;
    height: 0 !important;
    border: none !important;
    padding: 0 !important;
    margin: 0 !important;
    outline: none !important;
    z-index: -999 !important;
}

.typing-arena {
    position: relative;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px 36px;
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.35);
    min-height: 160px;
    cursor: text;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.typing-arena:hover, .typing-arena:focus-within {
    border-color: rgba(56, 189, 248, 0.45);
    box-shadow: 0 16px 40px rgba(56, 189, 248, 0.12);
}