:root{--bg: #f7f8fa;--fg: #1f2430;--muted: #6b7280;--border: #e2e5ea;--accent: #2563eb;--accent-fg: #fff;--danger: #dc2626;--ok: #16a34a;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--fg)}a{color:var(--accent);text-decoration:none}.layout{display:flex;min-height:100vh}.sidebar{width:230px;flex-shrink:0;background:#111827;color:#e5e7eb;padding:16px 0;position:sticky;top:0;height:100vh;overflow-y:auto}.sidebar h1{font-size:16px;padding:0 16px 12px;margin:0;color:#fff}.sidebar nav a{display:block;padding:8px 16px;color:#cbd5e1;font-size:14px}.sidebar nav a.active,.sidebar nav a:hover{background:#1f2937;color:#fff}.sidebar .group{font-size:11px;text-transform:uppercase;color:#6b7280;padding:14px 16px 4px;letter-spacing:.05em}.content{flex:1;padding:24px 32px;max-width:1100px}h2{margin-top:0}button{background:var(--accent);color:var(--accent-fg);border:none;border-radius:6px;padding:7px 14px;font-size:14px;cursor:pointer}button.secondary{background:#fff;color:var(--fg);border:1px solid var(--border)}button.danger{background:var(--danger)}button:disabled{opacity:.5;cursor:not-allowed}input,textarea,select{width:100%;padding:7px 9px;border:1px solid var(--border);border-radius:6px;font:inherit;background:#fff}label{display:block;font-size:13px;color:var(--muted);margin:8px 0 3px}table{border-collapse:collapse;width:100%;font-size:14px}th,td{border:1px solid var(--border);padding:6px 9px;text-align:left;vertical-align:top}th{background:#f0f2f5}.card{background:#fff;border:1px solid var(--border);border-radius:8px;padding:16px;margin-bottom:16px}.row{display:flex;gap:10px;align-items:flex-end;flex-wrap:wrap}.row>*{flex:1}.muted{color:var(--muted);font-size:13px}.err{color:var(--danger);white-space:pre-wrap;font-size:13px}.ok{color:var(--ok)}.badge{display:inline-block;background:#eef2ff;color:#3730a3;border-radius:10px;padding:1px 8px;font-size:12px}pre.json{background:#0b1020;color:#d6e2ff;padding:12px;border-radius:8px;overflow:auto;font-size:12px;max-height:420px}.toolbar{display:flex;gap:8px;margin-bottom:12px;flex-wrap:wrap}.tree{list-style:none;padding-left:16px}.tree li{margin:2px 0}