:root{--bg: #0b1220;--surface: #111827;--surface-2: #1f2937;--text: #e5e7eb;--muted: #9ca3af;--primary: #2563eb;--accent: #f59e0b;--tile-bg: #0b3a6f;--tile-text: #ffd166;--success: #16a34a;--danger: #ef4444;--shadow: 0 10px 30px rgba(0,0,0,.25);--fs-xs: clamp(10px, 1.2vw, 12px);--fs-sm: clamp(12px, 1.4vw, 14px);--fs-md: clamp(14px, 1.6vw, 18px);--fs-lg: clamp(18px, 2vw, 24px);--fs-xl: clamp(24px, 3vw, 36px);--fs-xxl: clamp(36px, 5vw, 64px);--dur-fast: .12s;--dur-med: .24s;--dur-slow: .42s;--easing: cubic-bezier(.2,.8,.2,1)}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:var(--bg);color:var(--text)}code{font-family:source-code-pro,Menlo,Monaco,Consolas,Courier New,monospace}.App{text-align:center}.container{max-width:1200px;margin:0 auto;padding:20px}.card{background:var(--surface);color:var(--text);border-radius:12px;padding:24px;box-shadow:var(--shadow);margin-bottom:24px}.button{background:var(--primary);color:var(--text);border:none;padding:12px 24px;border-radius:6px;cursor:pointer;font-size:16px;margin:8px;transition:transform var(--dur-fast) var(--easing),filter var(--dur-fast) var(--easing)}.button:hover{filter:brightness(1.1);transform:translateY(-1px)}.button.secondary{background:var(--surface-2)}.button.secondary:hover{background:#5a6268}.button.danger{background:var(--danger)}.button.danger:hover{background:#c82333}.input{padding:12px;background:var(--surface);color:var(--text);border:1px solid rgba(255,255,255,.08);border-radius:6px;font-size:16px;margin:8px;width:100%;max-width:300px}.buzzer{width:200px;height:200px;border-radius:50%;border:none;font-size:24px;font-weight:700;cursor:pointer;transition:all .2s;margin:20px}.buzzer.red{background:var(--danger);color:var(--text)}.buzzer.red:hover{background:#c82333;transform:scale(1.05)}.buzzer:active{transform:scale(.95)}.buzzer.disabled{background:var(--surface-2)!important;color:var(--muted)!important;cursor:not-allowed;transform:none;filter:grayscale(.2) brightness(.9)}.players-list{display:flex;flex-wrap:wrap;gap:16px;justify-content:center}.player-card{background:#f8f9fa;padding:16px;border-radius:8px;min-width:150px}.game-code{font-size:var(--fs-xxl);font-weight:900;color:var(--primary);margin:20px 0}.question-display{background:var(--surface);padding:clamp(20px,4vw,40px);border-radius:16px;margin:24px 0;box-shadow:var(--shadow)}.question-text{font-size:var(--fs-xl);margin-bottom:20px}.scoreboard{background:var(--surface);padding:20px;border-radius:12px;margin:20px 0;box-shadow:var(--shadow)}.flip{transform-style:preserve-3d;transition:transform var(--dur-med) var(--easing)}.flip:hover{transform:rotateY(5deg) scale(1.02)}.bottom-bar{position:fixed;left:0;right:0;bottom:0;background:var(--surface-2);border-top:1px solid rgba(255,255,255,.06);padding:8px 12px;z-index:50;display:flex;justify-content:center}.bottom-bar .inner{width:100%;max-width:1200px;display:flex;align-items:center;justify-content:space-between;gap:12px;color:var(--muted);font-size:var(--fs-sm)}.pill{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:9999px;background:var(--surface);color:var(--text);font-weight:700}.pill.accent{background:var(--accent);color:#1f2937}.truncate{max-width:60vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}