:root{--bg:#fafaf9;--fg:#1c1917;--muted:#78716c;--border:#e7e5e4;--card:#fff;--accent:#7c3aed;--user:#ede9fe;--danger:#dc2626;color:var(--fg);background:var(--bg);font-family:system-ui,-apple-system,sans-serif}@media (prefers-color-scheme:dark){:root{--bg:#1c1917;--fg:#f5f5f4;--muted:#a8a29e;--border:#44403c;--card:#292524;--user:#3b2a63}}*{box-sizing:border-box}body{margin:0}.layout{grid-template-columns:280px 1fr;height:100vh;display:grid}.sidebar{border-right:1px solid var(--border);background:var(--card);padding:16px;overflow-y:auto}.sidebar h2{margin:0 0 8px;font-size:1rem}.sidebar h3{text-transform:uppercase;color:var(--muted);margin:18px 0 6px;font-size:.8rem}.sidebar ul{margin:0;padding:0;list-style:none}.sidebar li{padding:4px 0}.sidebar .desc{color:var(--muted);font-size:.78rem}.url{word-break:break-all;font-size:.75rem}.chat{flex-direction:column;min-height:0;display:flex}.chat header{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;padding:12px 20px;display:flex}.messages{flex:1;width:100%;max-width:860px;margin:0 auto;padding:20px;overflow-y:auto}.bubble{border-radius:10px;margin:10px 0;padding:10px 14px;line-height:1.55}.bubble.user{background:var(--user);width:fit-content;max-width:75%;margin-left:auto}.bubble.assistant{background:var(--card);border:1px solid var(--border)}.bubble.assistant p:first-child{margin-top:0}.bubble.assistant p:last-child{margin-bottom:0}.bubble.error{color:var(--danger);border:1px solid var(--danger)}.event{color:var(--muted);margin:6px 0;font-size:.85rem}.event summary{cursor:pointer}.event pre{background:var(--card);border:1px solid var(--border);color:var(--fg);border-radius:6px;padding:8px;font-size:.78rem;overflow-x:auto}.event.is-error summary{color:var(--danger)}.examples{color:var(--muted);flex-direction:column;align-items:flex-start;gap:8px;display:flex}.composer{border-top:1px solid var(--border);gap:8px;padding:14px 20px;display:flex}.composer input{border:1px solid var(--border);font:inherit;background:var(--card);color:var(--fg);border-radius:8px;flex:1;padding:10px}button{background:var(--accent);color:#fff;font:inherit;cursor:pointer;border:0;border-radius:6px;padding:8px 14px}button:disabled{opacity:.5;cursor:default}button.secondary{color:var(--fg);border:1px solid var(--border);text-align:left;background:0 0}.muted{color:var(--muted)}.error{color:var(--danger)}@media (width<=720px){.layout{grid-template-columns:1fr}.sidebar{display:none}}