:root{--bg: #0f1216;--bg-elevated: #171b21;--tile: #1d232b;--tile-border: #262d37;--screen-bg: #000000;--scrim: rgba(0, 0, 0, .55);--text: #e8eaed;--text-dim: #9aa0a6;--accent: #8ab4f8;--accent-strong: #a2c5fa;--accent-contrast: #17212b;--good: #34a853;--warn: #fbbc05;--bad: #ea4335;--bad-strong: #f05b4f;--leave: var(--bad);--control: #2a3140;--control-hover: #354057;--success-bg: #12291a;--success-border: #1e4d2f;--success-text: #81c995;--danger-bg: #3a1512;--danger-border: #6e2018;--danger-text: #f28b82;--warn-bg: #3d2f10;--warn-text: #fdd663;--radius: 12px;--radius-s: 8px;--radius-pill: 999px;--font: "Segoe UI", system-ui, -apple-system, Roboto, sans-serif}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%}body{background:var(--bg);color:var(--text);font-family:var(--font);-webkit-font-smoothing:antialiased}button{font:inherit;cursor:pointer;border:none}.app-loading{height:100%;display:flex;align-items:center;justify-content:center}.spinner{width:28px;height:28px;border-radius:50%;border:3px solid var(--tile-border);border-top-color:var(--accent);animation:spin .9s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.lobby{min-height:100%;display:flex;flex-direction:column;align-items:center;padding:48px 24px;gap:40px}.lobby-header{text-align:center}.lobby-header h1{font-size:2rem;font-weight:600;letter-spacing:.5px}.lobby-header p{margin-top:8px;color:var(--text-dim)}.lobby-grid{display:grid;grid-template-columns:minmax(280px,560px) minmax(260px,360px);gap:40px;align-items:start;width:100%;max-width:1000px;justify-content:center}@media (max-width: 800px){.lobby-grid{grid-template-columns:minmax(260px,560px)}}.lobby-preview{display:flex;flex-direction:column;gap:16px}.preview-frame{position:relative;aspect-ratio:16 / 9;background:var(--tile);border:1px solid var(--tile-border);border-radius:var(--radius);overflow:hidden;display:flex;align-items:center;justify-content:center}.preview-video{width:100%;height:100%;object-fit:cover;transform:scaleX(-1)}.preview-off{color:var(--text-dim)}.preview-controls{display:flex;justify-content:center;gap:12px}.preview-state{text-align:center;font-size:.8rem;color:var(--text-dim)}.device-selects{display:flex;flex-direction:column;gap:8px}.device-select{display:flex;align-items:center;gap:10px;font-size:.85rem;color:var(--text-dim)}.device-select span{width:72px;flex:none}.device-select select{flex:1;min-width:0;background:var(--bg-elevated);color:var(--text);border:1px solid var(--tile-border);border-radius:var(--radius-s);padding:8px 10px}.lobby-form{display:flex;flex-direction:column;gap:18px;background:var(--bg-elevated);border:1px solid var(--tile-border);border-radius:var(--radius);padding:24px}.lobby-form label{display:flex;flex-direction:column;gap:6px;font-size:.85rem;color:var(--text-dim)}.lobby-form input{background:var(--bg);color:var(--text);border:1px solid var(--tile-border);border-radius:var(--radius-s);padding:12px 14px;font-size:1rem;outline:none}.lobby-form input:focus{border-color:var(--accent)}.pin-input{letter-spacing:.2em}.join-btn{background:var(--accent);color:var(--accent-contrast);font-weight:600;border-radius:var(--radius-pill);padding:12px 24px;transition:filter .15s}.join-btn:hover:not(:disabled){filter:brightness(1.1)}.join-btn:disabled{opacity:.4;cursor:not-allowed}.secondary-btn{background:var(--control);color:var(--text);font-weight:600;border-radius:var(--radius-pill);padding:12px 24px;transition:background .15s}.secondary-btn:hover:not(:disabled){background:var(--control-hover)}.secondary-btn:disabled{opacity:.4;cursor:not-allowed}.lobby-hint{font-size:.8rem;color:var(--text-dim);text-align:center}.success{background:var(--success-bg);border:1px solid var(--success-border);color:var(--success-text);border-radius:var(--radius-s);padding:12px 14px;font-size:.9rem;line-height:1.5}.error-box{background:var(--danger-bg);border:1px solid var(--danger-border);color:var(--danger-text);border-radius:var(--radius-s);padding:12px 14px;font-size:.9rem;line-height:1.5}.auth-card{width:100%;max-width:400px;display:flex;flex-direction:column;gap:18px;background:var(--bg-elevated);border:1px solid var(--tile-border);border-radius:var(--radius);padding:24px}.auth-card form{display:flex;flex-direction:column;gap:18px}.auth-card label{display:flex;flex-direction:column;gap:6px;font-size:.85rem;color:var(--text-dim)}.auth-card input{background:var(--bg);color:var(--text);border:1px solid var(--tile-border);border-radius:var(--radius-s);padding:12px 14px;font-size:1rem;outline:none}.auth-card input:focus{border-color:var(--accent)}.auth-text{color:var(--text-dim);text-align:center;line-height:1.5}.ghost-link{background:none;color:var(--accent);font-size:.9rem;padding:4px}.ghost-link:hover{text-decoration:underline}.auth-status{margin-top:10px;display:flex;align-items:center;justify-content:center;gap:10px;font-size:.85rem;color:var(--text-dim)}.room{height:100%;display:flex;flex-direction:column}.topbar{display:flex;align-items:center;justify-content:space-between;padding:12px 20px;background:var(--bg-elevated);border-bottom:1px solid var(--tile-border);gap:12px;flex-wrap:wrap}.topbar-left{display:flex;align-items:baseline;gap:14px;min-width:0}.brand{font-weight:600;letter-spacing:.4px}.room-name{color:var(--text-dim);font-size:.9rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.topbar-right{display:flex;align-items:center;gap:10px;font-size:.85rem;color:var(--text-dim)}.status-dot{width:10px;height:10px;border-radius:50%;display:inline-block}.status-good{background:var(--good)}.status-warn{background:var(--warn)}.status-bad{background:var(--bad)}.participant-count{padding-left:10px;border-left:1px solid var(--tile-border)}.viewer-count{color:var(--text-dim);cursor:default}.viewer-pill{background:var(--control);color:var(--accent);border:1px solid var(--tile-border);border-radius:var(--radius-pill);padding:3px 12px;font-size:.8rem;white-space:nowrap}.usage-banner{background:var(--warn-bg);color:var(--warn-text);text-align:center;padding:8px 16px;font-size:.85rem}.room-body{flex:1;display:flex;min-height:0}.tiles-wrap{flex:1;overflow-y:auto;padding:16px}.tiles{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:14px;max-width:1400px;margin:0 auto}.tile{position:relative;aspect-ratio:16 / 9;background:var(--tile);border:1px solid var(--tile-border);border-radius:var(--radius);overflow:hidden}.tile-screen{grid-column:1 / -1;aspect-ratio:auto;min-height:45vh;background:var(--screen-bg)}.tile-video{width:100%;height:100%;object-fit:cover}.tile-video.contain{object-fit:contain}.tile-video.mirrored{transform:scaleX(-1)}.tile-avatar{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center}.tile-avatar span{width:72px;height:72px;border-radius:50%;background:var(--control);color:var(--accent);font-size:1.8rem;font-weight:600;display:flex;align-items:center;justify-content:center}.tile-name{position:absolute;left:10px;bottom:10px;background:var(--scrim);padding:4px 10px;border-radius:6px;font-size:.8rem;max-width:calc(100% - 20px);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.tile-badges{position:absolute;top:10px;right:10px;display:flex;gap:6px}.badge{width:26px;height:26px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:var(--scrim)}.badge-muted{color:var(--bad)}.badge-hand{color:var(--warn);animation:hand-bounce 1.2s ease-in-out infinite}@keyframes hand-bounce{0%,to{transform:translateY(0)}50%{transform:translateY(-3px)}}.chat-panel{width:320px;flex:none;display:flex;flex-direction:column;background:var(--bg-elevated);border-left:1px solid var(--tile-border);min-height:0}.chat-header{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;border-bottom:1px solid var(--tile-border);font-weight:600}.chat-messages{flex:1;overflow-y:auto;padding:12px 16px;display:flex;flex-direction:column;gap:12px}.chat-empty{color:var(--text-dim);font-size:.85rem;text-align:center;margin-top:16px}.chat-msg{font-size:.9rem;line-height:1.4}.chat-msg-meta{display:flex;align-items:baseline;gap:8px;font-size:.75rem;color:var(--text-dim);margin-bottom:2px}.chat-msg-name{color:var(--text);font-weight:600;font-size:.8rem}.chat-msg-text{overflow-wrap:anywhere}.chat-form{display:flex;gap:8px;padding:12px;border-top:1px solid var(--tile-border)}.chat-form input{flex:1;min-width:0;background:var(--bg);color:var(--text);border:1px solid var(--tile-border);border-radius:var(--radius-pill);padding:10px 14px;font-size:.9rem;outline:none}.chat-form input:focus{border-color:var(--accent)}.chat-send{width:42px;height:42px;flex:none;border-radius:50%;background:var(--accent);color:var(--accent-contrast);display:flex;align-items:center;justify-content:center;transition:filter .15s}.chat-send:hover:not(:disabled){filter:brightness(1.1)}.chat-send:disabled{opacity:.4;cursor:not-allowed}@media (max-width: 700px){.chat-panel{position:fixed;top:0;right:0;bottom:0;width:min(320px,85vw);z-index:20;box-shadow:-8px 0 24px var(--scrim)}}.controls{display:flex;justify-content:center;gap:14px;padding:16px;background:var(--bg-elevated);border-top:1px solid var(--tile-border)}.control-btn{position:relative;width:52px;height:52px;border-radius:50%;background:var(--control);color:var(--text);display:flex;align-items:center;justify-content:center;transition:background .15s}.control-btn:hover{background:var(--control-hover)}.control-btn-off{background:var(--bad);color:#fff}.control-btn-off:hover{background:var(--bad-strong)}.control-btn-active{background:var(--accent);color:var(--accent-contrast)}.control-btn-active:hover{background:var(--accent-strong)}.control-btn-leave{background:var(--leave);color:#fff}.control-btn-leave:hover{background:var(--bad-strong)}.control-dot{position:absolute;top:6px;right:6px;width:10px;height:10px;border-radius:50%;background:var(--warn);border:2px solid var(--bg-elevated)}.audio-unlock{position:fixed;right:16px;bottom:96px;z-index:30;background:var(--accent);color:var(--accent-contrast);font-weight:600;border-radius:var(--radius-pill);padding:10px 18px;box-shadow:0 4px 16px var(--scrim);transition:filter .15s}.audio-unlock:hover{filter:brightness(1.1)}.fatal-overlay{margin:auto;display:flex;flex-direction:column;align-items:center;gap:18px;text-align:center;padding:40px 24px;max-width:460px}.fatal-overlay p{color:var(--text-dim);line-height:1.5}