:root{--bg:#000;--bg-surface:#0a0a0a;--bg-surface-active:#171717;--text:#fff;--text-muted:#a3a3a3;--text-dim:#737373;--accent-primary:#fff;--accent-secondary:#a3a3a3;--accent-success:#10b981;--border-subtle:#ffffff1a;--border-strong:#fff3;--purple:#fff;--cyan:#fff;--green:#10b981;--yellow:#f59e0b;--red:#ef4444;--option-a:#ef4444;--option-b:#3b82f6;--option-c:#f59e0b;--option-d:#10b981;--font:"Inter", -apple-system, sans-serif}*,:before,:after{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font);background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;min-height:100dvh;overflow-x:hidden}#root{flex-direction:column;min-height:100dvh;display:flex}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.animate-fade-in-up{animation:.4s cubic-bezier(.16,1,.3,1) forwards fadeInUp}@keyframes slideDown{0%{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}.animate-slide-down{animation:.4s cubic-bezier(.16,1,.3,1) forwards slideDown}@keyframes pulse-fast{0%,to{opacity:1;transform:scale(1)}50%{opacity:.8;transform:scale(.95)}}@keyframes popIn{0%{opacity:0;transform:scale(.9)}to{opacity:1;transform:scale(1)}}@keyframes timerShrink{0%{width:100%}to{width:0%}}.screen{flex-direction:column;flex:1;justify-content:center;align-items:center;min-height:100dvh;padding:24px;display:flex;position:relative;overflow:hidden}@supports (padding:max(0px)){.screen{padding-top:max(24px, env(safe-area-inset-top));padding-bottom:max(24px, env(safe-area-inset-bottom));padding-left:max(24px, env(safe-area-inset-left));padding-right:max(24px, env(safe-area-inset-right))}}.glass-card{background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:20px}.card{background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:24px;width:100%;max-width:400px;padding:32px}.input-label{color:var(--text-muted);letter-spacing:1.5px;text-transform:uppercase;margin-bottom:12px;font-size:12px;font-weight:800;display:block}.input{background:var(--bg-surface-active);color:var(--text);border:1px solid var(--border-strong);width:100%;font-size:18px;font-weight:600;font-family:var(--font);border-radius:12px;outline:none;padding:16px;transition:all .2s}.input:focus{border-color:var(--accent-primary);background:var(--bg)}.btn-primary{background:var(--accent-primary);text-align:center;color:#000;letter-spacing:1px;text-transform:uppercase;cursor:pointer;border:none;border-radius:12px;width:100%;padding:18px;font-size:18px;font-weight:900;transition:all .2s}.btn-primary:hover:not(:disabled){background:#e5e5e5;transform:translateY(-2px)}.btn-primary:active:not(:disabled){transform:translateY(0)scale(.98)}.btn-primary:disabled{opacity:.5;cursor:not-allowed;background:var(--bg-surface-active);color:var(--text-muted)}.emoji-large{text-align:center;margin-bottom:8px;font-size:64px}.title-large{color:#fff;text-align:center;letter-spacing:-1px;font-size:36px;font-weight:900}.subtitle{color:var(--text-muted);text-align:center;text-transform:uppercase;letter-spacing:2px;margin-bottom:40px;font-size:16px;font-weight:800}.app-root{width:100%;height:100%;transition:opacity .15s}.app-root.fade-out{opacity:0}.join-room-input{text-align:center;letter-spacing:8px;text-transform:uppercase;font-size:24px}.join-active-rooms{width:100%;max-width:400px;margin-top:24px}.join-room-row{background:var(--bg-surface);border:1px solid var(--border-subtle);cursor:pointer;border-radius:12px;justify-content:space-between;align-items:center;margin-bottom:12px;padding:16px;transition:all .2s;display:flex}.join-room-row:hover{background:var(--bg-surface-active);border-color:var(--border-strong)}.join-room-code{color:var(--text);letter-spacing:2px;font-weight:800}.waiting-dots{justify-content:center;gap:12px;margin:32px 0;display:flex}.waiting-dot{background:var(--text);border-radius:50%;width:16px;height:16px;animation:1s infinite alternate pulse-fast}.waiting-dot:nth-child(2){animation-delay:.2s}.waiting-dot:nth-child(3){animation-delay:.4s}.question-timer-track{background:var(--bg-surface-active);border:1px solid var(--border-subtle);border-radius:4px;width:100%;max-width:600px;height:8px;margin-bottom:24px;overflow:hidden}.question-timer-bar{height:100%;transition:width 1s linear,background-color .3s}.question-card{background:var(--bg-surface);border:1px solid var(--border-subtle);text-align:center;border-radius:16px;width:100%;max-width:600px;margin-bottom:24px;padding:24px}.question-image{object-fit:contain;border-radius:8px;max-width:100%;max-height:200px;margin-bottom:16px}.question-text{font-size:20px;font-weight:700;line-height:1.4}.options-grid{grid-template-columns:1fr 1fr;gap:16px;width:100%;max-width:600px;display:grid}.option-btn{background:var(--bg-surface);border:1px solid var(--border-subtle);color:#fff;cursor:pointer;text-align:center;border-radius:16px;flex-direction:column;justify-content:center;align-items:center;min-height:120px;padding:20px;font-size:16px;font-weight:700;transition:all .2s;display:flex}.option-btn:not(.option-dimmed):not(.option-selected):hover{background:var(--bg-surface-active);border-color:var(--border-strong);transform:translateY(-2px);box-shadow:0 4px 12px #00000080}.option-shape{color:var(--text-muted);margin-bottom:8px;font-size:24px;transition:color .2s}.option-selected{color:#000;background:#fff;border-color:#fff;transform:scale(1.02);box-shadow:0 0 20px #fff3}.option-selected .option-shape{color:#000}.option-dimmed{opacity:.4}.question-header{justify-content:space-between;align-items:center;width:100%;max-width:600px;margin-bottom:16px;display:flex}.question-timer-text{letter-spacing:-.5px;font-size:28px;font-weight:900}.question-number-badge{color:var(--text-muted);background:var(--bg-surface);letter-spacing:1px;border:1px solid var(--border-subtle);border-radius:8px;padding:4px 12px;font-size:14px;font-weight:800}.waiting-badge{background:var(--bg-surface);border:1px solid var(--border-strong);color:var(--text);border-radius:12px;margin-top:24px;padding:12px 24px;font-weight:800}.result-correct{background:var(--green)}.result-wrong{background:var(--red)}.result-icon-circle{background:var(--bg-surface-active);border:1px solid var(--border-strong);border-radius:50%;justify-content:center;align-items:center;width:100px;height:100px;margin-bottom:16px;font-size:48px;display:flex}.result-stats-row{gap:16px;width:100%;max-width:400px;margin-bottom:24px;display:flex}.result-stat-card{background:var(--bg-surface);text-align:center;border:1px solid var(--border-subtle);border-radius:12px;flex:1;padding:16px}.result-stat-label{color:var(--text-muted);text-transform:uppercase;margin-bottom:4px;font-size:12px;font-weight:800}.result-stat-value{color:#fff;font-size:28px;font-weight:900}.leaderboard-container{background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:16px;width:100%;max-width:400px;padding:16px}.leaderboard-row{background:var(--bg-surface-active);border:1px solid #0000;border-radius:8px;align-items:center;margin-bottom:8px;padding:12px;display:flex}.leaderboard-row.highlight{background:var(--bg-surface);border-color:var(--text)}.leaderboard-rank{width:32px;color:var(--text-muted);font-weight:900}.leaderboard-name{white-space:nowrap;text-overflow:ellipsis;flex:1;font-weight:600;overflow:hidden}.leaderboard-score{color:var(--text);font-weight:800}.podium-circle{background:var(--bg-surface-active);border:2px solid var(--border-strong);border-radius:50%;justify-content:center;align-items:center;width:120px;height:120px;margin-bottom:16px;font-size:56px;display:flex}.final-score-card{background:var(--bg-surface);border:1px solid var(--border-subtle);text-align:center;border-radius:16px;width:100%;max-width:400px;margin-bottom:32px;padding:24px}.final-rank-val{color:#fff;font-size:48px;font-weight:900}.final-score-val{color:var(--text-muted);margin-top:8px;font-size:24px;font-weight:700}.pwa-install-banner{background:var(--bg-surface-active);border:2px solid var(--yellow);z-index:9999;border-radius:12px;flex-direction:column;gap:12px;padding:16px;animation:.3s ease-out forwards slideUp;display:flex;position:fixed;bottom:16px;left:16px;right:16px;box-shadow:0 10px 25px #00000080}.pwa-install-header{justify-content:space-between;align-items:center;display:flex}.pwa-install-text{flex-direction:column;display:flex}.pwa-install-title{font-size:14px;font-weight:800}.pwa-install-desc{color:var(--text-muted);font-size:12px}.pwa-install-actions{align-items:center;gap:12px;display:flex}.pwa-btn-later{color:var(--text-muted);cursor:pointer;background:0 0;border:none;font-size:12px;font-weight:600}.pwa-btn-install{background:var(--yellow);color:#000;cursor:pointer;border:none;border-radius:8px;padding:8px 16px;font-size:12px;font-weight:800}.pwa-install-footer{border-top:1px solid var(--border-subtle);padding-top:8px}.pwa-checkbox-label{color:var(--text-muted);cursor:pointer;align-items:center;gap:8px;font-size:12px;display:flex}@keyframes slideUp{0%{opacity:0;transform:translateY(100%)}to{opacity:1;transform:translateY(0)}}