:root {
    --primary: #0bc2cf;
    --primary-dark: #08a5b0;
    --secondary: #6c63ff;
    --accent: #ff6b6b;
    --bg-dark: #1a1a2e;
    --bg-card: #16213e;
    --bg-surface: #1f2940;
    --text: #ffffff;
    --text-muted: #a0aec0;
    --success: #48bb78;
    --danger: #f56565;
    --warning: #ecc94b;
    --gold: #ffd700;
    --radius: 12px;
    --radius-lg: 20px;
    --shadow: 0 4px 20px rgba(0,0,0,0.3);
    --shadow-lg: 0 8px 40px rgba(0,0,0,0.4);
}

* { margin:0; padding:0; box-sizing:border-box; }

body {
    font-family: 'Nunito', sans-serif;
    background: var(--bg-dark);
    color: var(--text);
    min-height: 100vh;
}

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

.container { max-width: 1200px; margin: 0 auto; padding: 20px; }

/* Navbar */
.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 30px;
    background: var(--bg-card);
    border-bottom: 2px solid var(--primary);
    position: sticky;
    top: 0;
    z-index: 100;
}
.nav-brand {
    font-size: 1.8rem;
    font-weight: 900;
    color: var(--primary);
    text-decoration: none;
}
.nav-brand .accent { color: var(--secondary); }
.nav-links { display: flex; align-items: center; gap: 8px; }
.nav-link {
    padding: 8px 16px;
    border-radius: 8px;
    color: var(--text);
    font-weight: 600;
    font-size: 0.9rem;
    text-decoration: none;
    transition: all 0.2s;
}
.nav-link:hover { background: var(--bg-surface); text-decoration: none; }
.nav-user { display: flex; align-items: center; gap: 8px; margin-left: 16px; }
.coins-badge, .xp-badge {
    padding: 6px 12px;
    border-radius: 20px;
    font-weight: 700;
    font-size: 0.85rem;
}
.coins-badge { background: rgba(255,215,0,0.15); color: var(--gold); }
.xp-badge { background: rgba(255,107,107,0.15); color: var(--accent); }
.logout-btn { color: var(--danger) !important; }

/* Buttons */
.btn {
    display: inline-block;
    padding: 10px 24px;
    border-radius: var(--radius);
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    border: none;
    transition: all 0.2s;
    text-decoration: none;
    font-family: inherit;
}
.btn:hover { transform: translateY(-2px); text-decoration: none; }
.btn:active { transform: translateY(0); }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-secondary { background: var(--secondary); color: #fff; }
.btn-secondary:hover { background: #5a52e0; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-xl { padding: 14px 40px; font-size: 1.15rem; }
.btn-sm { padding: 6px 14px; font-size: 0.8rem; }
.btn-xs { padding: 4px 10px; font-size: 0.75rem; border-radius: 6px; }
.btn-full { width: 100%; text-align: center; }

/* Alerts */
.alert {
    padding: 12px 20px;
    border-radius: var(--radius);
    margin-bottom: 16px;
    font-weight: 600;
}
.alert-error { background: rgba(245,101,101,0.2); color: var(--danger); border: 1px solid var(--danger); }
.alert-success { background: rgba(72,187,120,0.2); color: var(--success); border: 1px solid var(--success); }

/* Hero */
.hero {
    text-align: center;
    padding: 60px 20px;
    background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-surface) 100%);
    border-radius: var(--radius-lg);
    margin: 20px 0;
    overflow: hidden;
    position: relative;
}
.hero-title {
    font-size: 3rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 16px;
}
.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto 30px;
}
.hero-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.hero-blooks {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-top: 40px;
    font-size: 3rem;
}
.blook-float {
    animation: float 3s ease-in-out infinite;
    animation-delay: var(--delay);
}
@keyframes float {
    0%, 100% { transform: translateY(0) translateX(0); }
    50% { transform: translateY(-20px) translateX(var(--x)); }
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    margin: 40px 0;
}
.feature-card {
    background: var(--bg-card);
    padding: 30px;
    border-radius: var(--radius-lg);
    text-align: center;
    transition: transform 0.3s;
    border: 1px solid rgba(255,255,255,0.05);
}
.feature-card:hover { transform: translateY(-5px); }
.feature-icon { font-size: 3rem; margin-bottom: 16px; }
.feature-card h3 { margin-bottom: 8px; font-size: 1.2rem; }
.feature-card p { color: var(--text-muted); font-size: 0.9rem; }

/* Auth */
.auth-page {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 70vh;
}
.auth-card {
    background: var(--bg-card);
    padding: 40px;
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 420px;
    box-shadow: var(--shadow-lg);
}
.auth-card h2 { text-align: center; margin-bottom: 24px; font-size: 1.8rem; }
.auth-form { display: flex; flex-direction: column; gap: 16px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-weight: 700; font-size: 0.9rem; }
.form-group input {
    padding: 12px 16px;
    border-radius: var(--radius);
    border: 2px solid var(--bg-surface);
    background: var(--bg-dark);
    color: var(--text);
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.2s;
}
.form-group input:focus { outline: none; border-color: var(--primary); }
.auth-link { text-align: center; margin-top: 16px; font-size: 0.9rem; }

/* Dashboard */
.dash-header { margin-bottom: 30px; }
.dash-header h1 { font-size: 2rem; margin-bottom: 20px; }
.dash-stats { display: flex; gap: 16px; flex-wrap: wrap; }
.stat-card {
    background: var(--bg-card);
    padding: 16px 24px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 1;
    min-width: 140px;
}
.stat-icon { font-size: 1.5rem; }
.stat-val { font-size: 1.5rem; font-weight: 900; }
.stat-label { color: var(--text-muted); font-size: 0.85rem; }

.dash-section { margin-bottom: 40px; }
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

/* Blook Grid */
.blook-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 12px;
}
.blook-card {
    background: var(--bg-card);
    padding: 16px;
    border-radius: var(--radius);
    text-align: center;
    border: 2px solid transparent;
    transition: all 0.2s;
}
.blook-card:hover { border-color: var(--blook-color); transform: scale(1.05); }
.blook-avatar { font-size: 2.5rem; margin-bottom: 8px; }
.blook-name { display: block; font-weight: 700; font-size: 0.85rem; }
.blook-rarity {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    margin-top: 4px;
}
.blook-rarity.common { background: #6b7280; color: #fff; }
.blook-rarity.rare { background: #3b82f6; color: #fff; }
.blook-rarity.epic { background: #8b5cf6; color: #fff; }
.blook-rarity.legendary { background: linear-gradient(135deg, #f59e0b, #ef4444); color: #fff; }

/* Sets Grid */
.sets-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
}
.set-card {
    background: var(--bg-card);
    padding: 20px;
    border-radius: var(--radius);
    border: 1px solid rgba(255,255,255,0.05);
}
.set-card h3 { margin-bottom: 4px; }
.set-card p { color: var(--text-muted); font-size: 0.85rem; margin-bottom: 12px; }
.set-actions { display: flex; flex-wrap: wrap; gap: 6px; }
.btn-mode {
    background: color-mix(in srgb, var(--mode-color) 20%, transparent);
    color: var(--mode-color);
    border: 1px solid var(--mode-color);
}
.btn-mode:hover { background: var(--mode-color); color: #fff; text-decoration: none; }

.quick-play {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.empty-state { color: var(--text-muted); padding: 20px; text-align: center; }

/* Join */
.join-page {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 60vh;
}
.join-card {
    background: var(--bg-card);
    padding: 40px;
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 450px;
    text-align: center;
    box-shadow: var(--shadow-lg);
}
.join-card h1 { margin-bottom: 8px; }
.join-subtitle { color: var(--text-muted); margin-bottom: 24px; }
.join-form { display: flex; flex-direction: column; gap: 16px; }
.pin-input {
    text-align: center;
    font-size: 1.8rem !important;
    letter-spacing: 8px;
    font-weight: 900;
}

/* Host Page */
.host-page { padding: 20px 0; }
.host-lobby { text-align: center; }
.lobby-header { margin-bottom: 30px; }
.lobby-header h1 { font-size: 2rem; margin-bottom: 20px; }
.pin-display {
    display: inline-flex;
    flex-direction: column;
    background: var(--bg-card);
    padding: 20px 40px;
    border-radius: var(--radius-lg);
    border: 3px solid var(--primary);
    margin-bottom: 16px;
}
.pin-label { font-size: 0.85rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 2px; }
.pin-number {
    font-size: 3.5rem;
    font-weight: 900;
    letter-spacing: 10px;
    color: var(--primary);
}
.game-mode-badge {
    display: inline-block;
    padding: 6px 20px;
    border-radius: 20px;
    background: color-mix(in srgb, var(--mode-color) 20%, transparent);
    color: var(--mode-color);
    font-weight: 700;
    border: 1px solid var(--mode-color);
}
.players-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
    margin: 16px 0;
}
.player-tag {
    background: var(--bg-surface);
    padding: 10px 20px;
    border-radius: var(--radius);
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 8px;
    animation: popIn 0.3s ease;
}
@keyframes popIn { from { transform: scale(0); } to { transform: scale(1); } }

/* Host Game */
.host-game { text-align: center; }
.host-question-area { max-width: 700px; margin: 0 auto; }
.question-progress { font-size: 1.2rem; color: var(--text-muted); margin-bottom: 16px; }
.host-question {
    font-size: 1.8rem;
    font-weight: 800;
    margin-bottom: 30px;
    padding: 30px;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
}
.host-options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 20px;
}
.host-option {
    padding: 16px;
    border-radius: var(--radius);
    font-weight: 700;
    font-size: 1.1rem;
    background: var(--bg-card);
    border: 2px solid var(--bg-surface);
    transition: all 0.3s;
}
.host-option.correct { background: rgba(72,187,120,0.3); border-color: var(--success); }
.host-option.incorrect { background: rgba(245,101,101,0.15); border-color: var(--danger); opacity: 0.5; }

.timer-bar {
    height: 8px;
    background: var(--bg-surface);
    border-radius: 4px;
    overflow: hidden;
    margin: 16px 0;
}
.timer-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    border-radius: 4px;
    transition: width 1s linear;
    width: 100%;
}
.timer-text { font-size: 2rem; font-weight: 900; color: var(--primary); }

/* Play Page */
.play-page { text-align: center; padding: 20px 0; }
.play-waiting { padding: 80px 0; }
.waiting-blook { font-size: 5rem; animation: float 2s ease-in-out infinite; }
.play-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    background: var(--bg-card);
    border-radius: var(--radius);
    margin-bottom: 20px;
}
.play-progress { font-weight: 700; }
.play-score { font-weight: 700; color: var(--gold); }
.play-timer {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 900;
    font-size: 1.2rem;
}
.play-question {
    font-size: 1.5rem;
    font-weight: 800;
    padding: 30px;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    margin-bottom: 20px;
}
.play-options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    max-width: 700px;
    margin: 0 auto;
}
.play-option {
    padding: 20px;
    border-radius: var(--radius);
    font-weight: 700;
    font-size: 1.1rem;
    background: var(--bg-card);
    border: 3px solid var(--bg-surface);
    cursor: pointer;
    transition: all 0.2s;
    color: var(--text);
    text-decoration: none;
    display: block;
}
.play-option:hover { border-color: var(--primary); transform: scale(1.02); text-decoration: none; }
.play-option.selected { border-color: var(--primary); background: rgba(11,194,207,0.15); }
.play-option.correct { border-color: var(--success); background: rgba(72,187,120,0.2); }
.play-option.incorrect { border-color: var(--danger); background: rgba(245,101,101,0.2); }
.play-option.disabled { pointer-events: none; opacity: 0.6; }

/* Result */
.play-result { padding: 40px 0; }
.result-icon { font-size: 4rem; margin-bottom: 16px; }
.result-text { font-size: 1.5rem; font-weight: 800; margin-bottom: 8px; }
.result-score { font-size: 1.2rem; color: var(--gold); font-weight: 700; }
.result-total { font-size: 1rem; color: var(--text-muted); margin-top: 8px; }

/* Scoreboard */
.scoreboard-list { max-width: 500px; margin: 0 auto; }
.sb-row {
    display: flex;
    align-items: center;
    padding: 12px 20px;
    margin: 6px 0;
    background: var(--bg-card);
    border-radius: var(--radius);
    font-weight: 700;
}
.sb-row.self { border: 2px solid var(--primary); }
.sb-rank { width: 50px; text-align: center; }
.sb-name { flex: 1; }
.sb-score { color: var(--gold); }

/* Finished */
.play-finished, .host-finished, .solo-finished {
    padding: 40px 0;
    text-align: center;
}
.final-score {
    font-size: 3rem;
    font-weight: 900;
    color: var(--gold);
    margin: 20px 0;
}
.final-rank { font-size: 1.2rem; color: var(--text-muted); margin-bottom: 20px; }

/* Market */
.market-page { padding: 20px 0; }
.market-page h1 { text-align: center; margin-bottom: 8px; }
.market-subtitle { text-align: center; margin-bottom: 30px; }
.coins-display { font-size: 1.3rem; font-weight: 900; color: var(--gold); }
.market-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 16px;
}
.market-blook-card {
    background: var(--bg-card);
    padding: 20px;
    border-radius: var(--radius-lg);
    text-align: center;
    border: 2px solid transparent;
    transition: all 0.3s;
}
.market-blook-card:hover { border-color: var(--blook-color); }
.market-blook-card.owned { opacity: 0.7; }
.blook-avatar-large { font-size: 4rem; margin-bottom: 12px; }
.market-blook-card h3 { margin-bottom: 4px; font-size: 1rem; }
.owned-btn { background: var(--bg-surface) !important; color: var(--text-muted) !important; }

/* Leaderboard */
.leaderboard-page { padding: 20px 0; max-width: 600px; margin: 0 auto; }
.leaderboard-page h1 { text-align: center; margin-bottom: 24px; }
.lb-header, .lb-row {
    display: flex;
    align-items: center;
    padding: 14px 20px;
    margin: 4px 0;
}
.lb-header {
    font-weight: 800;
    color: var(--text-muted);
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 1px;
}
.lb-row {
    background: var(--bg-card);
    border-radius: var(--radius);
    font-weight: 700;
}
.lb-row.top-1 { border: 2px solid #ffd700; background: rgba(255,215,0,0.1); }
.lb-row.top-2 { border: 2px solid #c0c0c0; background: rgba(192,192,192,0.1); }
.lb-row.top-3 { border: 2px solid #cd7f32; background: rgba(205,127,50,0.1); }
.lb-rank { width: 60px; text-align: center; font-size: 1.2rem; }
.lb-name { flex: 1; }
.lb-xp { color: var(--accent); }

/* Solo */
.solo-page { text-align: center; padding: 20px 0; }
.mode-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
    margin: 24px 0;
}
.mode-card {
    background: var(--bg-card);
    padding: 24px;
    border-radius: var(--radius-lg);
    text-align: center;
    border: 2px solid transparent;
    cursor: pointer;
    transition: all 0.3s;
    color: var(--text);
    font-family: inherit;
}
.mode-card:hover { border-color: var(--mode-color); transform: translateY(-3px); }
.mode-icon { font-size: 3rem; margin-bottom: 12px; }
.mode-card h3 { margin-bottom: 6px; }
.mode-card p { color: var(--text-muted); font-size: 0.8rem; }

.solo-question {
    font-size: 1.5rem;
    font-weight: 800;
    padding: 30px;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    margin-bottom: 20px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}
.solo-options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    max-width: 700px;
    margin: 0 auto 20px;
}
.solo-option {
    padding: 20px;
    border-radius: var(--radius);
    font-weight: 700;
    font-size: 1.1rem;
    background: var(--bg-card);
    border: 3px solid var(--bg-surface);
    cursor: pointer;
    transition: all 0.2s;
    color: var(--text);
}
.solo-option:hover { border-color: var(--primary); }
.solo-option.correct { border-color: var(--success); background: rgba(72,187,120,0.2); }
.solo-option.incorrect { border-color: var(--danger); background: rgba(245,101,101,0.2); }
.solo-timer-bar {
    height: 6px;
    background: var(--bg-surface);
    border-radius: 3px;
    max-width: 700px;
    margin: 0 auto;
    overflow: hidden;
}
.solo-timer-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    transition: width 1s linear;
    width: 100%;
}

/* Create Set */
.create-set-page { max-width: 700px; margin: 0 auto; padding: 20px 0; }
.set-editor-header { margin-bottom: 24px; }
.question-card {
    background: var(--bg-card);
    padding: 20px;
    border-radius: var(--radius);
    margin-bottom: 16px;
}
.q-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}
.q-num { font-weight: 900; color: var(--primary); font-size: 1.1rem; }
.q-text {
    width: 100%;
    padding: 12px;
    border-radius: var(--radius);
    border: 2px solid var(--bg-surface);
    background: var(--bg-dark);
    color: var(--text);
    font-size: 1rem;
    font-family: inherit;
    margin-bottom: 12px;
}
.q-text:focus { outline: none; border-color: var(--primary); }
.q-options { display: flex; flex-direction: column; gap: 8px; }
.q-option { display: flex; align-items: center; gap: 8px; }
.q-option input[type=radio] { accent-color: var(--primary); }
.opt-text {
    flex: 1;
    padding: 10px 12px;
    border-radius: 8px;
    border: 2px solid var(--bg-surface);
    background: var(--bg-dark);
    color: var(--text);
    font-size: 0.9rem;
    font-family: inherit;
}
.opt-text:focus { outline: none; border-color: var(--primary); }
.editor-actions {
    display: flex;
    justify-content: space-between;
    margin-top: 20px;
}

/* Responsive */
@media (max-width: 768px) {
    .navbar { flex-direction: column; gap: 8px; padding: 8px 16px; }
    .nav-links { flex-wrap: wrap; justify-content: center; }
    .hero-title { font-size: 2rem; }
    .pin-number { font-size: 2.5rem; }
    .play-options, .host-options, .solo-options { grid-template-columns: 1fr; }
    .host-option, .play-option, .solo-option { padding: 16px; font-size: 1rem; }
    .dash-stats { flex-direction: column; }
}