:root{--bg: #0f1012;--panel: #1e1f22;--accent: #5865f2;--red: #ed4245;--green: #3ba55d;--text: #f2f3f5;--yellow: #fee75c}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Segoe UI,sans-serif;background:var(--bg);color:var(--text);height:100vh;overflow:hidden}.app-grid{display:grid;grid-template-columns:1fr 350px;height:100vh}.stage{position:relative;background:#000;height:100vh;display:flex;align-items:center;justify-content:center;overflow:hidden}#room-id-display{position:absolute;top:20px;left:20px;z-index:500;background:#5865f233;padding:10px 20px;border-radius:8px;border:1px solid var(--accent);color:var(--accent);font-weight:700;cursor:pointer;transition:.2s}#room-id-display:hover{background:#5865f266}#main-video-focus{width:100%;height:100%;object-fit:contain;display:none;z-index:10;background:#000;cursor:pointer}#fullscreen-overlay{position:fixed;inset:0;background:#000;z-index:8000;display:none;align-items:center;justify-content:center;cursor:pointer}#fullscreen-overlay.active{display:flex}#fullscreen-video{width:100%;height:100%;object-fit:contain}#fullscreen-exit-hint{position:fixed;top:20px;left:50%;transform:translate(-50%);background:#000c;color:#aaa;padding:8px 20px;border-radius:8px;font-size:13px;z-index:8001;opacity:0;transition:opacity .3s;pointer-events:none}#fullscreen-overlay.active~#fullscreen-exit-hint{opacity:1}#thumb-container{position:absolute;bottom:120px;right:20px;display:flex;flex-direction:column;gap:15px;z-index:100}.thumb{width:85px;height:85px;border-radius:50%;border:3px solid var(--accent);overflow:hidden;cursor:pointer;background:#111;position:relative}.thumb video{width:100%;height:100%;object-fit:cover}.thumb-badge{position:absolute;bottom:-2px;left:50%;transform:translate(-50%);background:var(--accent);color:#fff;font-size:11px;font-weight:700;width:24px;height:24px;border-radius:50%;display:flex;align-items:center;justify-content:center;border:2px solid #000;z-index:10;text-transform:uppercase}.thumb .fullscreen-icon{position:absolute;top:4px;right:4px;background:#000000b3;color:#fff;width:22px;height:22px;border-radius:4px;display:flex;align-items:center;justify-content:center;font-size:10px;opacity:0;transition:.2s}.thumb:hover .fullscreen-icon{opacity:1}#camera-grid{position:absolute;inset:0;display:none;grid-template-columns:1fr;gap:8px;padding:80px 20px 130px;z-index:4}#camera-grid.active{display:grid}#camera-grid.cols-2{grid-template-columns:1fr 1fr}#camera-grid.cols-3{grid-template-columns:1fr 1fr 1fr}.cam-tile{background:#1a1a1d;border-radius:12px;overflow:hidden;position:relative;display:flex;align-items:center;justify-content:center;min-height:0}.cam-tile video{width:100%;height:100%;object-fit:cover}.cam-tile .cam-name{position:absolute;bottom:10px;left:10px;background:#000000b3;color:#fff;padding:4px 12px;border-radius:6px;font-size:12px;font-weight:700}#mic-ui{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;z-index:3;pointer-events:none}.viz{display:flex;gap:6px;height:80px;align-items:flex-end;margin-bottom:20px}.bar{width:12px;background:var(--accent);border-radius:6px;min-height:10px;transition:.1s}#speaker-card{background:var(--green);color:#fff;padding:8px 20px;border-radius:20px;font-weight:700;opacity:0;transition:.3s}.controls-wrapper{position:absolute;bottom:40px;left:0;right:0;display:flex;flex-direction:column;align-items:center;pointer-events:none;z-index:1500}.controls{display:flex;gap:15px;pointer-events:auto;align-items:center}.btn{width:60px;height:60px;border-radius:50%;border:none;color:#fff;cursor:pointer;font-size:22px;display:flex;align-items:center;justify-content:center;transition:.2s}.btn:hover{transform:scale(1.1)}#stop-btn{display:none;background:var(--red);color:#fff;padding:10px 22px;border-radius:30px;border:none;font-weight:700;cursor:pointer;margin-bottom:12px;pointer-events:auto;font-size:13px}.audio-controls{position:absolute;bottom:115px;left:50%;transform:translate(-50%);display:none;background:#1e1f22f2;padding:12px 20px;border-radius:12px;border:1px solid #333;z-index:1500;pointer-events:auto;gap:12px;align-items:center;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.audio-controls.active{display:flex}.audio-controls label{font-size:11px;color:#aaa;white-space:nowrap}.vol-slider{-webkit-appearance:none;width:120px;height:5px;border-radius:5px;background:#444;outline:none}.vol-slider::-webkit-slider-thumb{-webkit-appearance:none;width:16px;height:16px;border-radius:50%;background:var(--accent);cursor:pointer}.audio-mute-btn{background:none;border:1px solid #555;color:#ccc;width:32px;height:32px;border-radius:50%;cursor:pointer;font-size:14px;display:flex;align-items:center;justify-content:center;transition:.2s}.audio-mute-btn:hover{border-color:var(--accent);color:var(--accent)}.audio-mute-btn.muted{border-color:var(--red);color:var(--red)}.chat-panel{background:var(--panel);display:flex;flex-direction:column;border-left:1px solid #000;z-index:1600;height:100vh;overflow:hidden}.chat-header{padding:20px;font-size:12px;font-weight:700;color:#555;flex-shrink:0}#chat-msgs{flex:1;overflow-y:auto;padding:15px;display:flex;flex-direction:column;gap:10px;min-height:0}#chat-msgs::-webkit-scrollbar{width:6px}#chat-msgs::-webkit-scrollbar-track{background:transparent}#chat-msgs::-webkit-scrollbar-thumb{background:#444;border-radius:3px}.msg-container{display:flex;flex-direction:column;max-width:85%;flex-shrink:0}.my-msg{align-self:flex-end}.other-msg{align-self:flex-start}.msg-sender{font-size:10px;font-weight:700;margin-bottom:2px;text-transform:uppercase;color:#888}.my-msg .msg-sender{text-align:right;color:var(--green)}.msg-bubble{padding:10px 14px;border-radius:15px;font-size:14px;line-height:1.4;word-wrap:break-word}.my-msg .msg-bubble{background:var(--accent);color:#fff;border-bottom-right-radius:2px}.other-msg .msg-bubble{background:#2e2f35;color:#ddd;border-bottom-left-radius:2px}.chat-input{padding:15px 20px;background:#0000004d;flex-shrink:0}#c-input{width:100%;background:#000;border:1px solid #333;color:#fff;padding:15px;border-radius:10px;outline:none;font-size:14px}#u-list{padding:10px 15px;font-size:12px;color:#666;flex-shrink:0;border-top:1px solid #333}#setup-screen{position:absolute;inset:0;background:var(--bg);display:flex;flex-direction:column;align-items:center;justify-content:center;z-index:5000;gap:15px}@media(max-width:768px){.app-grid{grid-template-columns:1fr;grid-template-rows:1fr 250px}.chat-panel{border-left:none;border-top:1px solid #000;height:auto}}