:root{
  --bg:#f6f8fb;
  --card:#ffffff;
  --muted:#6b7280;
  --line:#e5e7eb;
  --accent:#2563eb;
  --accent-600:#1d4ed8;
  --success:#10b981;
  --danger:#ef4444;
  --radius:14px;
  --shadow:0 10px 20px rgba(2,6,23,.06);
  --ring:0 0 0 3px rgba(37,99,235,.25);
}
*{box-sizing:border-box}
body{font-family:ui-sans-serif,system-ui,Segoe UI,Roboto,Ubuntu,Helvetica,Arial;color:#0f172a;background:var(--bg);margin:0}
a{color:var(--accent);text-decoration:none}
.container{max-width:1180px;margin:24px auto;padding:0 16px}
.btn{background:var(--accent);color:#fff;border:none;border-radius:12px;padding:10px 14px;cursor:pointer;display:inline-flex;align-items:center;gap:8px}
.btn:hover{background:var(--accent-600)}
.btn.ghost{background:#eef2ff;color:#1e40af}
.btn:focus-visible{outline:none;box-shadow:var(--ring)}
.badge{display:inline-block;padding:4px 8px;border-radius:999px;background:#eef2ff;color:#3730a3;font-size:12px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px}
.grid{display:grid;gap:16px}
.grid.cols-2{grid-template-columns:1fr 1fr}
.grid.cols-3{grid-template-columns:repeat(3,1fr)}
input,select,textarea{width:100%;padding:10px;border:1px solid var(--line);border-radius:12px;background:#fff}
label{display:block;font-size:12px;color:var(--muted);margin:8px 0 6px}
.table{width:100%;border-collapse:collapse}
.table th,.table td{border-bottom:1px solid var(--line);padding:10px;text-align:left;font-size:14px}
.header{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.header h1{margin:0;font-size:22px}
.pill-tabs{display:flex;gap:6px;background:#eef2ff;border-radius:999px;padding:4px;width:max-content}
.pill-tabs a{padding:6px 10px;border-radius:999px;color:#1e40af}
.pill-tabs a.active{background:#fff;border:1px solid #c7d2fe}
.help{font-size:12px;color:var(--muted)}
.alert{border-radius:12px;padding:10px;margin:8px 0}
.alert.success{background:#dcfce7;border:1px solid #bbf7d0;color:#065f46}
.alert.error{background:#fee2e2;border:1px solid #fecaca;color:#991b1b;white-space:pre-wrap}
.alert.note{background:#eef2ff;border:1px solid #c7d2fe;color:#1e40af}
.toolbar{display:flex;gap:8px;align-items:center}
.kbd{font:12px ui-monospace,Menlo,monospace;background:#0f172a;color:#fff;border-radius:6px;padding:2px 6px}