.kwcb-wrap{border:1px solid #e5e7eb;border-radius:16px;padding:18px;max-width:980px;margin:18px auto;font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif}
.kwcb-header{margin-bottom:12px}
.kwcb-title{margin:0 0 6px;font-size:22px;line-height:1.2}
.kwcb-sub{margin:0;color:#6b7280;font-size:14px}
.kwcb-panel{background:#fafafa;border:1px solid #eee;border-radius:14px;padding:14px;margin-top:14px}
.kwcb-row{margin:10px 0}
.kwcb-row-2{display:grid;grid-template-columns:1fr 1fr 1fr;gap:12px}
.kwcb-label{display:block;font-size:13px;color:#111827;margin-bottom:6px}
.kwcb-input{width:100%;border:1px solid #d1d5db;border-radius:12px;padding:10px 12px;font-size:14px;outline:none}
.kwcb-input:focus{border-color:#93c5fd;box-shadow:0 0 0 3px rgba(147,197,253,.35)}
.kwcb-check{font-size:13px;color:#111827;display:flex;gap:8px;align-items:center}
.kwcb-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:12px}
.kwcb-btn{border:1px solid #111827 !important;background:#111827 !important;color:#fff !important;border-radius:12px;padding:10px 14px;font-size:14px;cursor:pointer}
.kwcb-btn:hover{opacity:.92}
.kwcb-btn-ghost{background:#fff !important;color:#111827 !important}
.kwcb-status{margin-top:10px;font-size:13px;color:#374151;min-height:18px}
.kwcb-status.is-error{color:#b91c1c}
.kwcb-status[data-type="err"]{color:#b91c1c}
.kwcb-status[data-type="ok"]{color:#065f46}
.kwcb-status[data-type="loading"]{color:#1f2937}
.kwcb-results{margin-top:16px}
.kwcb-tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:10px}
.kwcb-tab{border:1px solid #e5e7eb !important;background:#fff !important;border-radius:999px;padding:8px 12px;font-size:13px;cursor:pointer;color:#111827 !important}
.kwcb-tab:hover{opacity:.92}
.kwcb-tab.is-active{border-color:#111827}
.kwcb-card{border:1px solid #e5e7eb;background:#fff;border-radius:14px;padding:12px;overflow:auto}
.kwcb-pane{display:none}
.kwcb-pane.is-active{display:block}
.kwcb-kv{display:grid;grid-template-columns:220px 1fr;gap:8px;align-items:start;margin:8px 0}
.kwcb-kv .k{font-weight:600;color:#111827}
.kwcb-kv .v{color:#111827}
.kwcb-badge{display:inline-block;border:1px solid #e5e7eb;border-radius:999px;padding:4px 10px;font-size:12px;margin:4px 6px 0 0;background:#fafafa}
.kwcb-list{margin:8px 0 0;padding-left:18px}
.kwcb-list li{margin:4px 0}
.kwcb-small{font-size:12px;color:#6b7280}
.kwcb-pre{white-space:pre-wrap;background:#0b1020;color:#e5e7eb;border-radius:12px;padding:12px;font-size:12px;line-height:1.5}
@media (max-width:720px){.kwcb-row-2{grid-template-columns:1fr}}

.kwcb-empty{color:#6b7280}
.kwcb-briefs{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.kwcb-brief{border:1px solid #e5e7eb;border-radius:14px;padding:12px;background:#fff}
.kwcb-brief-head{margin-bottom:6px}
.kwcb-brief-def{font-size:13px;color:#111827;margin:6px 0}
.kwcb-brief-syn{font-size:13px;color:#111827}
.kwcb-block{border:1px solid #e5e7eb;border-radius:14px;padding:12px;background:#fff;margin:10px 0}
.kwcb-block-title{font-weight:700;margin-bottom:6px}
.kwcb-chip{display:inline-block;border:1px solid #e5e7eb;border-radius:999px;padding:6px 10px;font-size:12px;margin:6px 8px 0 0;background:#fafafa;color:#111827}
@media (max-width:720px){.kwcb-row-2{grid-template-columns:1fr}.kwcb-briefs{grid-template-columns:1fr}}

/* Top tabs (Search Niche / Cluster Builder) */
.kwcb-top-tabs{display:flex;gap:10px;margin:12px 0 0;flex-wrap:wrap}
.kwcb-top-tab{border:1px solid #e5e7eb;background:#fff;border-radius:999px;padding:8px 12px;font-size:13px;cursor:pointer;color:#111827;font-weight:700}
.kwcb-top-tab.is-active{border-color:#111827;background:#111827;color:#fff}
.kwcb-top-pane{display:none}
.kwcb-top-pane.is-active{display:block}

/* Niche search layout */
.kwcb-cols{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:12px}
@media (max-width:840px){.kwcb-cols{grid-template-columns:1fr}}
.kwcb-card-head{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:10px}
.kwcb-actions-inline{display:flex;gap:8px;flex-wrap:wrap}
.kwcb-hint{font-size:12px;color:#6b7280;margin-top:8px}
.kwcb-linkbtn{border:0;background:transparent;color:#0b57d0;text-decoration:underline;cursor:pointer;padding:0;font:inherit;text-align:left}
.kwcb-tablewrap{overflow:auto}


/* Niche sticky headers + inner scroll */
.kwcb-top-pane[data-kwcb-top-pane="niche"] .kwcb-cols .kwcb-card{max-height:520px;overflow:auto;}
.kwcb-top-pane[data-kwcb-top-pane="niche"] .kwcb-cols .kwcb-card-head{position:sticky;top:0;background:#fff;z-index:5;padding-bottom:10px;}
.kwcb-top-pane[data-kwcb-top-pane="niche"] .kwcb-cols [data-kwcb-niche-suggestions],
.kwcb-top-pane[data-kwcb-top-pane="niche"] .kwcb-cols [data-kwcb-niche-expanded]{max-height:none;overflow:visible;}


/* -------------------------
   SaaS-ready UX tweaks
   - Niche panels scroll inside cards (page stays stable)
   - Sticky card headings while scrolling
-------------------------- */
.kwcb-top-pane[data-kwcb-top-pane="niche"] .kwcb-card{
  padding: 0;
  max-height: 520px;
  overflow: auto;
}
@media (max-width: 840px){
  .kwcb-top-pane[data-kwcb-top-pane="niche"] .kwcb-card{ max-height: 420px; }
}
.kwcb-top-pane[data-kwcb-top-pane="niche"] .kwcb-card-head{
  position: sticky;
  top: 0;
  background: #fff;
  padding: 12px;
  margin: 0;
  z-index: 3;
  border-bottom: 1px solid #e5e7eb;
}
.kwcb-top-pane[data-kwcb-top-pane="niche"] [data-kwcb-niche-suggestions],
.kwcb-top-pane[data-kwcb-top-pane="niche"] [data-kwcb-niche-expanded]{
  padding: 12px;
}