:root{color-scheme:light dark;--bg:#fff;--fg:#1a1a1a;--mut:#666;--line:#e3e3e3;--acc:#c2410c;--card:#f6f6f6}:root[data-theme=dark]{--bg:#1e1e1e;--fg:#eee;--mut:#a0a0a0;--line:#3a3a3a;--acc:#fb923c;--card:#2a2a2a;color-scheme:dark}:root[data-theme=light]{color-scheme:light}@media(prefers-color-scheme:dark){:root:not([data-theme]){--bg:#1e1e1e;--fg:#eee;--mut:#a0a0a0;--line:#3a3a3a;--acc:#fb923c;--card:#2a2a2a}}.brand{margin:8px 0 14px}*{box-sizing:border-box}body{margin:0;font:13px/1.45 Segoe UI,system-ui,sans-serif;background:var(--bg);color:var(--fg)}.shell{display:flex;flex-direction:column;height:100vh}.hdr{display:flex;align-items:center;gap:8px;padding:8px 12px;border-bottom:1px solid var(--line)}.hdr .small{flex:1}.body{flex:1;display:flex;flex-direction:column;min-height:0;padding:12px}h2{margin:0 0 6px;font-size:16px}.muted{color:var(--mut)}.small{font-size:11px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.err{color:#dc2626}button{font:inherit;padding:6px 12px;border-radius:6px;border:1px solid var(--line);background:var(--card);color:var(--fg);cursor:pointer}button.primary{background:var(--acc);border-color:var(--acc);color:#fff}button:disabled{opacity:.5;cursor:default}button.link{border:0;background:none;color:var(--mut);padding:2px 4px;text-decoration:underline}.banner{background:var(--card);border-left:3px solid var(--acc);padding:8px 10px;margin:6px 0;border-radius:4px}.banner a{color:var(--acc)}.log{flex:1;overflow:auto;display:flex;flex-direction:column;gap:6px}.empty{display:flex;flex-direction:column;gap:6px;align-items:flex-start}.chip{text-align:left;font-size:12px}.msg{padding:8px 10px;border-radius:8px;max-width:92%;white-space:pre-wrap}.msg.user{align-self:flex-end;background:var(--acc);color:#fff}.msg.bot{align-self:flex-start;background:var(--card)}.tool{font-size:11.5px;color:var(--mut);padding-left:4px}.tool.w{color:var(--fg)}.tool.bad{color:#dc2626}.composer{display:flex;gap:6px;padding-top:8px;border-top:1px solid var(--line);margin-top:8px;align-items:flex-end}.composer textarea{flex:1;font:inherit;padding:6px 8px;border-radius:6px;border:1px solid var(--line);background:var(--bg);color:var(--fg);resize:none}.code-box{margin:14px 0;padding:14px;border-radius:10px;border:1px solid var(--line);background:var(--card);text-align:center}.code{margin:4px 0 0;font-family:ui-monospace,SF Mono,Consolas,monospace;font-size:22px;letter-spacing:.12em;font-weight:600}