:root{color-scheme:light;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,sans-serif}*{box-sizing:border-box}body{margin:0;background:#f8fafc;color:#0f172a}.app{max-width:1200px;margin:0 auto;padding:24px 20px 60px}header{display:flex;align-items:center;gap:16px;margin-bottom:18px}h1{font-size:20px;margin:0;letter-spacing:-.01em}h2{font-size:13px;text-transform:uppercase;letter-spacing:.06em;color:#64748b;margin:0 0 10px}h3{font-size:12px;margin:0 0 6px;color:#334155}.status{color:#fff;font-size:12px;font-weight:700;letter-spacing:.06em;padding:5px 12px;border-radius:999px}.controls{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px}button{font:inherit;font-size:14px;font-weight:600;padding:9px 14px;border-radius:8px;border:1px solid transparent;background:#0f172a;color:#fff;cursor:pointer}button:disabled{opacity:.4;cursor:not-allowed}button.secondary{background:#475569}button.ghost{background:#fff;color:#0f172a;border-color:#cbd5e1}button.ghost.danger{color:#b91c1c;border-color:#fecaca}.error{background:#fef2f2;border:1px solid #fecaca;color:#b91c1c;padding:10px 12px;border-radius:8px;margin-bottom:14px;font-size:14px;white-space:pre-wrap}.grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:14px}@media(max-width:900px){.grid{grid-template-columns:1fr}}.panel{background:#fff;border:1px solid #e2e8f0;border-radius:12px;padding:14px;margin-bottom:14px}.transcript{height:300px;overflow-y:auto;display:flex;flex-direction:column;gap:8px}.bubble{display:flex;gap:8px;font-size:14px;line-height:1.45}.bubble .who{flex:0 0 42px;font-weight:700;font-size:11px;text-transform:uppercase;padding-top:3px;color:#64748b}.bubble.assistant .who{color:#2563eb}.textbar{display:flex;gap:8px;margin-top:10px}.textbar input{flex:1;font:inherit;font-size:14px;padding:9px 11px;border:1px solid #cbd5e1;border-radius:8px}.timeline{height:300px;overflow-y:auto;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:11.5px;line-height:1.6}.event{display:flex;gap:8px;white-space:nowrap}.event .time{color:#94a3b8}.event .type{font-weight:700;flex:0 0 auto}.event .tool{color:#7c3aed}.event .ms{color:#0891b2}.event .payload{color:#475569;overflow:hidden;text-overflow:ellipsis}.state{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;font-size:13px}@media(max-width:900px){.state{grid-template-columns:1fr}}.state ul{margin:0;padding-left:16px}.state li{margin-bottom:4px;word-break:break-word}code{background:#f1f5f9;padding:1px 5px;border-radius:4px;font-size:12px}.muted{color:#94a3b8}