:root{--bg: #f6f7f9;--panel: #ffffff;--text: #16181d;--muted: #6b7280;--border: #e3e6eb;--accent: #f38020;--accent-text: #ffffff;--user: #16181d;--user-text: #ffffff;--assistant: #eef0f3;--ok: #15803d;--warn: #b45309;--err: #b91c1c;--run: #2563eb;color-scheme:light}@media(prefers-color-scheme:dark){:root{--bg: #0f1115;--panel: #171a20;--text: #e8eaed;--muted: #9aa1ab;--border: #2a2f37;--user: #f38020;--user-text: #111;--assistant: #222730;--ok: #4ade80;--warn: #fbbf24;--err: #f87171;--run: #60a5fa;color-scheme:dark}}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:15px/1.5 ui-sans-serif,system-ui,-apple-system,Segoe UI,sans-serif}button{font:inherit;cursor:pointer}button:disabled{opacity:.5;cursor:default}.ghost{background:transparent;border:1px solid var(--border);color:var(--text);border-radius:8px;padding:5px 10px;font-size:13px}.small{font-size:12px}.muted{color:var(--muted)}