/* ── Guardrails ─────────────────────────────────────────────────────────── */
  .guardrail-grid { display:grid; grid-template-columns:1fr 1fr; gap:6px; margin-top:8px; }
  .guardrail-item { display:flex; align-items:center; gap:8px; padding:6px 10px;
    background:var(--bg); border:1px solid var(--border); border-radius:6px;
    font-size:12px; cursor:pointer; transition:all 0.15s; }
  .guardrail-item:hover { border-color:var(--info-border); }
  .guardrail-item input[type=checkbox] { accent-color:var(--accent-bg); width:14px; height:14px; flex-shrink:0; }
  .guardrail-section { margin-top:6px; }
  .guardrail-section-label { font-size:10px; font-weight:600; color:var(--muted);
    text-transform:uppercase; letter-spacing:.06em; margin:8px 0 4px; }

  /* ── Multi-KB selector ──────────────────────────────────────────────────── */
  .kb-checklist { background:var(--bg); border:1px solid var(--border); border-radius:6px;
    max-height:130px; overflow-y:auto; padding:4px 0; }
  .kb-checklist label { display:flex; align-items:center; gap:8px; padding:6px 10px;
    font-size:12px; cursor:pointer; transition:background 0.1s;
    /* Override .form-group label / .pb-option label uppercase so KB names
       render in source case (TEST KB vs Test KB). The surrounding form
       label rule applies text-transform:uppercase to every <label>; here
       the label IS the KB name row, not a field header. */
    text-transform:none; letter-spacing:0; font-weight:normal; color:inherit; }
  .kb-checklist label:hover { background:var(--border-subtle); }
  .kb-checklist input[type=checkbox] { accent-color:var(--accent-bg); width:14px; height:14px; flex-shrink:0; }
  .kb-checklist-empty { padding:10px; font-size:12px; color:var(--muted); text-align:center; }

  /* ── PDF Upload ─────────────────────────────────────────────────────────── */
  .kb-upload-zone { border:2px dashed var(--border); border-radius:10px; padding:20px 16px;
    text-align:center; cursor:pointer; transition:all 0.2s; margin-bottom:8px; }
  .kb-upload-zone:hover, .kb-upload-zone.dragover { border-color:var(--accent-bg); background:var(--info-bg-tint); }
  .kb-upload-icon { font-size:28px; margin-bottom:6px; }
  .kb-upload-text { font-size:13px; color:var(--muted); }
  .kb-upload-text strong { color:inherit; }
  .kb-upload-status { padding:8px 12px; border-radius:6px; font-size:12px; margin-top:8px; }
  .kb-upload-status.loading { background:var(--info-bg-tint);    color:var(--accent); }
  .kb-upload-status.success { background:var(--success-bg-tint); color:var(--success); }
  .kb-upload-status.error   { background:var(--danger-bg-tint);  color:var(--danger); }