:root{--bg: #0b0e14;--bg-card: #131826;--bg-elevated: #1a2132;--border: #26304a;--text: #e8ecf4;--text-muted: #8b94a8;--accent: #6c5ce7;--accent-hover: #7f71ea;--danger: #e74c3c;--ok: #2ecc71;--live: #e74c3c;--radius: 12px}*{box-sizing:border-box}body{margin:0;font-family:Segoe UI,system-ui,-apple-system,sans-serif;background:radial-gradient(ellipse at top,#11162a 0%,var(--bg) 55%);color:var(--text);min-height:100vh}a{color:var(--accent-hover);text-decoration:none}.landing{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}.landing-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:40px;width:100%;max-width:460px;text-align:center;box-shadow:0 20px 60px #00000073}.landing-card h1{margin:0 0 12px;font-size:2rem}.logo{margin-right:8px}.subtitle{color:var(--text-muted);margin:0 0 28px;line-height:1.5}.divider{margin:24px 0;color:var(--text-muted);font-size:.85rem;position:relative}.divider:before,.divider:after{content:"";position:absolute;top:50%;width:32%;height:1px;background:var(--border)}.divider:before{left:0}.divider:after{right:0}.join-row{display:flex;gap:10px}.join-row .input{flex:1}.input{background:var(--bg-elevated);border:1px solid var(--border);border-radius:8px;color:var(--text);font-size:1.05rem;letter-spacing:2px;padding:12px 14px;text-align:center;text-transform:uppercase}.input:focus{outline:2px solid var(--accent);outline-offset:-1px}.hint{color:var(--text-muted);font-size:.82rem;margin-top:24px;line-height:1.5}.btn{border:1px solid transparent;border-radius:8px;cursor:pointer;font-size:.95rem;font-weight:600;padding:10px 18px;transition:background .15s ease,transform .05s ease}.btn:active{transform:translateY(1px)}.btn:disabled{cursor:not-allowed;opacity:.5}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover:not(:disabled){background:var(--accent-hover)}.btn-secondary{background:var(--bg-elevated);border-color:var(--border);color:var(--text)}.btn-secondary:hover:not(:disabled){background:var(--border)}.btn-danger{background:var(--danger);color:#fff}.btn-danger:hover:not(:disabled){background:#e05b4c}.btn-ghost{background:transparent;border-color:var(--border);color:var(--text-muted)}.btn-ghost:hover:not(:disabled){color:var(--text)}.btn-lg{font-size:1.1rem;padding:14px 32px}.btn-sm{font-size:.8rem;padding:6px 12px}.page{max-width:1100px;margin:0 auto;padding:20px 24px 48px;display:flex;flex-direction:column;gap:16px}.room-header{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px}.brand{font-weight:700;font-size:1.1rem;color:var(--text)}.room-meta{display:flex;align-items:center;gap:10px}.room-code{background:var(--bg-elevated);border:1px solid var(--border);border-radius:8px;font-family:Cascadia Code,Consolas,monospace;font-size:1.05rem;letter-spacing:3px;padding:8px 14px}.room-status{display:flex;gap:8px;align-items:center}.badge{background:var(--bg-elevated);border:1px solid var(--border);border-radius:999px;color:var(--text-muted);font-size:.8rem;padding:5px 12px;white-space:nowrap}.badge-ok{border-color:var(--ok);color:var(--ok)}.badge-bad{border-color:var(--text-muted)}.badge-live{border-color:var(--live);color:var(--live);font-weight:700}.live-dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--live);margin-right:6px;animation:pulse 1.2s infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.3}}.stage{background:#000;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;aspect-ratio:16 / 9;display:flex;align-items:center;justify-content:center;position:relative}.video-wrap{width:100%;height:100%;position:relative;background:#000}.video-wrap video{width:100%;height:100%;object-fit:contain}.preview-tag{position:absolute;bottom:10px;left:10px;background:#000000a6;border-radius:6px;color:var(--text-muted);font-size:.75rem;padding:4px 10px}.unmute-btn{position:absolute;bottom:16px;left:50%;transform:translate(-50%)}.empty-state{text-align:center;color:var(--text-muted);padding:24px}.empty-icon{font-size:3rem;margin-bottom:8px;opacity:.7}.empty-state h2{color:var(--text);margin:0 0 6px}.empty-state p{margin:0;line-height:1.5}.banner{border-radius:8px;padding:12px 16px;font-size:.9rem}.banner-error{background:#e74c3c1f;border:1px solid var(--danger);color:#f1a299}.host-controls{display:flex;flex-direction:column;align-items:center;gap:10px;text-align:center}.error-text{color:var(--danger);margin:0;font-size:.9rem}.notice-text{color:#f5c66b;margin:0;font-size:.9rem}.muted{color:var(--text-muted)}.viewer-footer{text-align:center}.viewer-footer p{margin:0}.error-card{text-align:center;padding:40px;max-width:480px;margin:10vh auto 0}.error-card a{margin-top:16px;display:inline-block}.zoomable{touch-action:none;transform-origin:center center;cursor:grab}.zoomable:active{cursor:grabbing}.zoom-reset{position:absolute;top:10px;right:10px;background:#000000b3}.viewer-controls{display:flex;align-items:center;justify-content:center;gap:12px;flex-wrap:wrap}.quality-label{display:flex;align-items:center;gap:8px;color:var(--text-muted);font-size:.9rem}.select{letter-spacing:normal;text-transform:none;padding:8px 12px;font-size:.9rem;min-width:150px;appearance:auto}.banner-warn{background:#f5c26b1f;border:1px solid #f5c66b;color:#f5d699;text-align:left}.stage:fullscreen{border-radius:0;border:none}.stage:fullscreen .video-wrap video{object-fit:contain}.fps-picker{display:flex;align-items:center;justify-content:center;gap:10px;flex-wrap:wrap}.audio-panel{background:var(--bg-elevated);border:1px solid var(--border);border-radius:10px;display:flex;flex-direction:column;gap:10px;max-width:640px;margin:0 auto;padding:16px;text-align:left}.audio-panel .hint{margin:0}.audio-panel .join-row{flex-wrap:wrap}.audio-panel .select{flex:1;min-width:220px}.ok-text{color:var(--ok);font-size:.9rem;margin:0}@media (max-width: 720px){.page{padding:12px 12px 32px}.room-header{flex-direction:column;align-items:stretch}.room-meta,.room-status{justify-content:center}.landing-card{padding:28px 20px}.join-row .input{font-size:.95rem}.viewer-controls{gap:8px}.select{min-width:130px}}