*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}:root{--bg: #0f0f0f;--surface: #1a1a1a;--border: #2a2a2a;--text: #e0e0e0;--text-dim: #888;--accent: #3b82f6;--accent-hover: #2563eb;--danger: #ef4444;--success: #22c55e}html,body,#root{height:100%}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text)}.home{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;gap:24px}.home h1{font-size:2.5rem;font-weight:700;letter-spacing:-1px}.home p{color:var(--text-dim);font-size:1.1rem}.btn{padding:12px 28px;border:none;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:background .15s,opacity .15s}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover:not(:disabled){background:var(--accent-hover)}.room{display:flex;flex-direction:column;height:100%}.room-header{display:flex;align-items:center;justify-content:space-between;padding:12px 20px;background:var(--surface);border-bottom:1px solid var(--border)}.room-header h2{font-size:1rem;font-weight:500}.connection-status{display:flex;align-items:center;gap:6px;font-size:.85rem;color:var(--text-dim)}.status-dot{width:8px;height:8px;border-radius:50%;background:var(--danger)}.status-dot.connected{background:var(--success)}.status-dot.connecting{background:#f59e0b;animation:pulse 1s infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.3}}.video-area{flex:1;position:relative;overflow:hidden}.video-grid{width:100%;height:100%;display:grid;gap:8px;padding:8px;overflow:hidden}.video-grid[data-count="1"]{grid-template-columns:1fr}.video-grid[data-count="2"]{grid-template-columns:1fr 1fr}.video-grid[data-count="3"],.video-grid[data-count="4"]{grid-template-columns:1fr 1fr;grid-template-rows:1fr 1fr}.video-grid[data-count="5"],.video-grid[data-count="6"]{grid-template-columns:1fr 1fr 1fr;grid-template-rows:1fr 1fr}.video-container{position:relative;background:var(--surface);border-radius:12px;overflow:hidden;display:flex;align-items:center;justify-content:center}.video-container video{width:100%;height:100%;object-fit:cover}.video-container.local video{transform:scaleX(-1)}.local-video-pip{position:absolute;top:16px;left:16px;width:180px;height:135px;z-index:10;border-radius:12px;overflow:hidden;box-shadow:0 4px 12px #00000080;border:2px solid var(--border);transition:opacity .2s}.local-video-pip:hover{opacity:.7}.local-video-pip .video-container{width:100%;height:100%;border-radius:0}.waiting-message{display:flex;align-items:center;justify-content:center;color:var(--text-dim);font-size:1.2rem}.video-container:fullscreen{background:#000;border-radius:0}.video-container:fullscreen video{object-fit:contain}.video-label{position:absolute;bottom:8px;left:8px;background:#0009;padding:4px 10px;border-radius:4px;font-size:.8rem}.video-off-placeholder{display:flex;align-items:center;justify-content:center;width:100%;height:100%;background:var(--surface);font-size:2rem;color:var(--text-dim)}.controls{display:flex;align-items:center;justify-content:center;gap:12px;padding:16px;background:var(--surface);border-top:1px solid var(--border)}.control-btn{width:48px;height:48px;border-radius:50%;border:none;background:var(--border);color:var(--text);font-size:1.2rem;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .15s}.control-btn:hover{background:#333}.control-btn.active{background:var(--danger);color:#fff}.control-btn.leave{background:var(--danger);color:#fff;width:auto;padding:0 24px;border-radius:24px;font-size:.9rem;font-weight:600}.control-btn.leave:hover{background:#dc2626}.error-page{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;gap:16px;color:var(--danger)}