/* ── Second Brain ───────────────────────────────────────────────────
   Panel shell + header come from the Panel Framework; tabs/search/badges/
   empty-state come from OscarUI (.ou-*). This file holds only the bits
   unique to Second Brain: stats line, episode cards, label filter pills,
   and the knowledge-graph canvas chrome. */

/* Header stats (wrapper injects #sbStats into .pf-header-actions) */
.sb-stats {
  display:flex; gap:12px; font-size:var(--fs-xs); color:var(--text-dim);
}
.sb-stats span { white-space:nowrap; }

/* Tabs bar wrapper (holds an OscarUI.tabs / .ou-tabs element) */
.sb-tabs { border-bottom:1px solid var(--border); flex-shrink:0; }

/* Body */
.sb-body { flex:1; overflow-y:auto; overflow-x:hidden; }

/* Toolbar */
.sb-toolbar { padding:10px 12px; border-bottom:1px solid var(--border); flex-shrink:0; }
.sb-toolbar .ou-search { margin-bottom:8px; }

/* Filters — the pill row itself is an .ou-filter-bar (overflow-x, never-wrap).
   #sbFilters is a positioned anchor for the "+N more" dropdown. */
#sbFilters { position:relative; }
.sb-filter-pill {
  padding:4px 10px; font-size:var(--fs-xs); border:1px solid var(--border); border-radius:var(--radius-pill);
  background:var(--overlay-1); color:var(--text-dim); cursor:pointer; white-space:nowrap;
  transition:.15s;
}
.sb-filter-pill:hover { background:var(--overlay-2); color:var(--text); }
.sb-filter-pill.active { font-weight:600; background: var(--c); color: var(--text-on-accent); border-color: var(--c); }
.sb-filter-sep { color:var(--border); font-size:var(--fs-xs); margin:0 2px; }
.sb-filter-dropdown {
  position:absolute; top:100%; left:0; right:0; z-index:10; margin-top:4px;
  background:var(--surface); border:1px solid var(--border); border-radius:var(--radius);
  max-height:200px; overflow-y:auto; box-shadow:var(--shadow-2);
}
.sb-filter-dropdown-item {
  display:flex; align-items:center; gap:8px; padding:8px 12px; font-size:var(--fs-sm);
  color:var(--text-dim); border:none; background:none; width:100%; cursor:pointer; text-align:left;
}
.sb-filter-dropdown-item:hover { background:var(--overlay-2); }
.sb-filter-dropdown-item.active { color:var(--accent); font-weight:600; }

/* Episode Cards */
.sb-episodes { padding:8px; }
.sb-episode-card {
  background:var(--surface); border:1px solid var(--border); border-radius:var(--radius-lg);
  padding:12px; margin-bottom:8px; transition:border-color .15s;
}
.sb-episode-card:hover { border-color:var(--border-strong); }
.sb-ep-header { display:flex; align-items:center; gap:8px; margin-bottom:6px; flex-wrap:wrap; }
.sb-ep-date { font-size:var(--fs-xs); color:var(--text-dim); }
.sb-ep-score {
  font-size:10px; padding:1px 6px; border-radius:var(--radius-lg);
  background:var(--accent-tint); color:var(--accent); font-weight:600;
}
.sb-ep-content {
  font-size:var(--fs-sm); line-height:1.6; color:var(--text); white-space:pre-wrap; word-break:break-word;
}
.sb-ep-labels { display:flex; flex-wrap:wrap; gap:4px; margin-top:6px; }
.sb-label-badge {
  font-size:10px; padding:2px 7px; border-radius:var(--radius); border:1px solid var(--c, var(--border));
  color:var(--text-dim); background:var(--overlay-1);
}

/* Load more */
.sb-load-more {
  display:block; width:100%; padding:12px; background:var(--overlay-1);
  border:1px solid var(--border); border-radius:var(--radius); color:var(--text-dim);
  font-size:var(--fs-sm); cursor:pointer; text-align:center; margin-top:4px;
}
.sb-load-more:hover { background:var(--overlay-2); }

/* ── Knowledge Graph ─────────────────────────────────────────────── */
.sb-type-pill {
  padding:3px 8px; font-size:10px; border:1px solid var(--border); border-radius:var(--radius-lg);
  background:var(--overlay-1); color:var(--text-dim); cursor:pointer; white-space:nowrap;
  display:flex; align-items:center; gap:4px; transition:.15s;
}
.sb-type-pill:hover { background:var(--overlay-2); }
.sb-type-pill.active { font-weight:600; background: var(--c); color: var(--text-on-accent); border-color: var(--c); }
.sb-type-dot {
  display:inline-block; width:6px; height:6px; border-radius:var(--radius-pill); flex-shrink:0;
  background: var(--c);
}
.sb-type-text { color: var(--c); }

.sb-graph-container {
  flex:1; position:relative; min-height:300px; background:var(--bg); overflow:hidden;
}
.sb-graph-container canvas {
  display:block; width:100%; height:100%;
}
.sb-graph-tooltip {
  display:none; position:absolute; padding:6px 10px; background:var(--surface-2);
  border:1px solid var(--border); border-radius:var(--radius); font-size:var(--fs-xs); color:var(--text);
  pointer-events:none; z-index:5; white-space:nowrap; max-width:250px;
}
.sb-graph-legend {
  position:absolute; bottom:8px; left:8px; display:flex; flex-wrap:wrap; gap:6px;
  padding:6px 10px; background:var(--surface-2); border:1px solid var(--border); border-radius:var(--radius); font-size:10px;
}
.sb-legend-item { display:flex; align-items:center; gap:3px; color:var(--text-dim); }

/* Graph detail panel */
.sb-graph-detail {
  display:none; max-height:200px; overflow-y:auto; border-top:1px solid var(--border);
  padding:10px 12px; background:var(--surface);
}
.sb-detail-header {
  display:flex; align-items:center; gap:8px; margin-bottom:8px; flex-wrap:wrap;
}
.sb-detail-header strong { font-size:var(--fs-md); }
.sb-detail-type { font-size:var(--fs-xs); color:var(--text-dim); background:var(--overlay-2); padding:2px 8px; border-radius:var(--radius-lg); }
.sb-detail-close { margin-left:auto; }
.sb-rel-item {
  display:flex; align-items:center; gap:6px; padding:3px 0; font-size:var(--fs-sm); color:var(--text-dim);
}
.sb-rel-arrow { color:var(--accent); font-size:var(--fs-md); }
.sb-rel-pred { color:var(--text-dim); font-style:italic; min-width:80px; }
.sb-rel-entity { color:var(--text); display:flex; align-items:center; gap:4px; }

/* Mobile */
@media(max-width:600px){
  .sb-graph-container { min-height:250px; }
  .sb-graph-detail { max-height:150px; }
}