:root{--bg: #f5f5f4;--surface: #ffffff;--border: #e2e2df;--text: #1c1c1a;--muted: #6b6b66;--accent: #2f5bd3;--user-bg: #2f5bd3;--user-text: #ffffff;--bot-bg: #ececea;--error: #c0392b;--speaking: #1e9e5a;font-family:system-ui,-apple-system,Segoe UI,sans-serif;color:var(--text)}@media(prefers-color-scheme:dark){:root{--bg: #161615;--surface: #1f1f1d;--border: #33332f;--text: #ececea;--muted: #9a9a94;--accent: #6d8ef0;--user-bg: #3d63d6;--bot-bg: #2b2b28;--error: #ff7b6b;--speaking: #3ccf82}}*{box-sizing:border-box}body{margin:0;background:var(--bg)}header{display:flex;align-items:center;gap:24px;padding:14px 20px;border-bottom:1px solid var(--border);background:var(--surface)}h1{font-size:18px;margin:0}h2{font-size:16px;margin:0}button{font:inherit;padding:7px 14px;border:1px solid var(--border);border-radius:8px;background:var(--surface);color:var(--text);cursor:pointer}button:disabled{opacity:.45;cursor:default}.tabs{display:flex;gap:6px}.tab.active{background:var(--accent);border-color:var(--accent);color:#fff}main{max-width:1200px;margin:0 auto;padding:20px;display:grid;gap:20px}.panel{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:20px}.panel[hidden]{display:none}.avatar-col,.chat-col,.metrics{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:14px}.stage{aspect-ratio:1 / 1;border-radius:10px;overflow:hidden;background:#000;outline:3px solid transparent;transition:outline-color .15s}.panel.speaking .stage{outline-color:var(--speaking)}.stage video,.spatius-canvas{width:100%;height:100%;display:block;object-fit:cover}.controls{display:flex;align-items:center;gap:8px;margin-top:12px;flex-wrap:wrap}.status{color:var(--muted);font-size:13px}.chat-col{display:flex;flex-direction:column;min-height:420px}.chat-log{flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:8px;padding-bottom:10px;max-height:560px}.msg{padding:8px 12px;border-radius:12px;max-width:85%;white-space:pre-wrap;line-height:1.4}.msg.user{align-self:flex-end;background:var(--user-bg);color:var(--user-text)}.msg.bot{align-self:flex-start;background:var(--bot-bg)}.msg.error{align-self:center;color:var(--error);font-size:13px}form{display:flex;gap:8px}input{flex:1;font:inherit;padding:9px 12px;border:1px solid var(--border);border-radius:8px;background:var(--bg);color:var(--text)}.metrics-head{display:flex;justify-content:space-between;align-items:center;gap:8px}.summary{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px;margin:14px 0}.card{border:1px solid var(--border);border-radius:10px;padding:10px 14px}.card h3{margin:0 0 8px;font-size:14px;text-transform:capitalize}.card small{color:var(--muted);font-weight:400}.card dl{display:grid;grid-template-columns:auto auto;gap:4px 12px;margin:0;font-size:13px}.card dt{color:var(--muted)}.card dd{margin:0;text-align:right;font-variant-numeric:tabular-nums}.legend{color:var(--muted);font-size:12px;line-height:1.5}.table-wrap{overflow-x:auto}table{width:100%;border-collapse:collapse;font-size:13px;font-variant-numeric:tabular-nums}th,td{padding:6px 8px;border-bottom:1px solid var(--border);text-align:left;white-space:nowrap}th{color:var(--muted);font-weight:500}@media(max-width:800px){.panel{grid-template-columns:1fr}main{padding:16px}}