/* LPG interactive graph — Obsidian-style force layout, typed nodes/edges.
   Depends on tokens.css for surfaces/ink/tool colors. Self-contained otherwise. */

.lpg {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 292px;
  grid-template-rows: auto 1fr;
  gap: 12px;
  height: calc(100vh - 190px);
  min-height: 520px;
}
.lpg-topbar {
  grid-column: 1 / -1;
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
}
.lpg-levels { display: inline-flex; background: var(--card); border: 1px solid var(--border); border-radius: var(--r-sm); padding: 2px; }
.lpg-levels a {
  font-size: 12px; color: var(--ink-2); padding: 5px 12px; border-radius: 5px; line-height: 1;
  display: inline-flex; align-items: center; gap: 6px;
}
.lpg-levels a:hover { color: var(--ink); }
.lpg-levels a.active { background: var(--accent); color: #fff; }
.lpg-crumb { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; color: var(--ink-3); }
.lpg-crumb a { color: var(--ink-2); }
.lpg-crumb a:hover { color: var(--ink); }
.lpg-crumb .sep { color: var(--ink-3); }
.lpg-crumb .cur { color: var(--ink); font-family: var(--font-mono); font-size: 11.5px; }
.lpg-spacer { flex: 1; }
.lpg-search {
  display: inline-flex; align-items: center; gap: 7px; background: var(--card);
  border: 1px solid var(--border); border-radius: var(--r-sm); padding: 6px 10px;
}
.lpg-search input { background: none; border: none; outline: none; color: var(--ink); font: inherit; font-size: 12.5px; width: 170px; }
.lpg-search svg { width: 13px; height: 13px; color: var(--ink-3); }

.lpg-canvas {
  position: relative; overflow: hidden;
  background:
    radial-gradient(circle at 50% 40%, rgba(57,135,229,0.05), transparent 60%),
    var(--card);
  border: 1px solid var(--border); border-radius: var(--r-lg);
  touch-action: none;
}
.lpg-canvas svg { display: block; width: 100%; height: 100%; cursor: grab; }
.lpg-canvas svg.panning { cursor: grabbing; }

.lpg-edge { stroke: var(--baseline); stroke-width: 1; opacity: 0.5; }
.lpg-edge.dir { marker-end: url(#lpg-arrow); }
.lpg-edgelabel { fill: var(--ink-3); font-size: 8.5px; font-family: var(--font-ui); opacity: 0; pointer-events: none; }

.lpg-node circle { stroke: var(--card); stroke-width: 1.5; cursor: pointer; transition: stroke 0.12s ease; }
.lpg-node .halo { fill: none; stroke: none; }
.lpg-node text {
  fill: var(--ink-2); font-size: 10px; font-family: var(--font-ui);
  pointer-events: none; paint-order: stroke; stroke: var(--page); stroke-width: 3px;
}
.lpg-node.big text { fill: var(--ink); font-size: 11.5px; font-weight: 600; }

/* hover neighborhood highlight */
.lpg.hovering .lpg-node { opacity: 0.16; }
.lpg.hovering .lpg-node.nbr { opacity: 1; }
.lpg.hovering .lpg-node.focus { opacity: 1; }
.lpg.hovering .lpg-node.focus circle { stroke: var(--ink); }
.lpg.hovering .lpg-edge { opacity: 0.05; }
.lpg.hovering .lpg-edge.nbr { opacity: 0.9; stroke: var(--ink-3); }
.lpg.hovering .lpg-edge.nbr + .lpg-edgelabel,
.lpg.hovering .lpg-edgelabel.nbr { opacity: 0.85; }

/* search match */
.lpg.searching .lpg-node { opacity: 0.12; }
.lpg.searching .lpg-node.match { opacity: 1; }
.lpg.searching .lpg-node.match circle { stroke: var(--accent); stroke-width: 2.5; }

.lpg-node.selected circle { stroke: var(--accent); stroke-width: 2.5; }
.lpg-node.hidden { display: none; }
.lpg-edge.hidden, .lpg-edgelabel.hidden { display: none; }

/* right sidebar */
.lpg-side { display: flex; flex-direction: column; gap: 12px; overflow-y: auto; min-height: 0; }
.lpg-panel { background: var(--card); border: 1px solid var(--border); border-radius: var(--r-lg); padding: 14px; }
.lpg-panel h3 { font-size: 10.5px; font-weight: 600; letter-spacing: 0.5px; text-transform: uppercase; color: var(--ink-3); margin-bottom: 10px; }

.lpg-details .d-empty { font-size: 12px; color: var(--ink-3); line-height: 1.5; }
.lpg-details .d-type { display: inline-flex; align-items: center; gap: 6px; font-size: 11px; color: var(--ink-2); margin-bottom: 6px; }
.lpg-details .d-type .dot { width: 9px; height: 9px; border-radius: 50%; flex: none; }
.lpg-details .d-label { font-size: 15px; font-weight: 650; color: var(--ink); letter-spacing: -0.2px; margin-bottom: 4px; word-break: break-word; }
.lpg-details .d-label.mono { font-family: var(--font-mono); font-size: 13px; }
.lpg-details .d-props { margin-top: 10px; display: flex; flex-direction: column; gap: 5px; }
.lpg-details .d-prop { display: flex; justify-content: space-between; gap: 10px; font-size: 12px; }
.lpg-details .d-prop .k { color: var(--ink-3); }
.lpg-details .d-prop .v { color: var(--ink-2); font-variant-numeric: tabular-nums; text-align: right; word-break: break-word; }
.lpg-details .d-edges { margin-top: 12px; border-top: 1px solid var(--border); padding-top: 10px; }
.lpg-details .d-edges .e { font-size: 11.5px; color: var(--ink-2); padding: 3px 0; display: flex; gap: 6px; }
.lpg-details .d-edges .e .rel { color: var(--ink-3); font-family: var(--font-mono); font-size: 10px; }
.lpg-details .d-drill {
  margin-top: 12px; width: 100%; justify-content: center;
  display: inline-flex; align-items: center; gap: 7px; padding: 8px 12px;
  background: var(--accent); border: 1px solid var(--accent); border-radius: var(--r-sm);
  color: #fff; font-size: 12.5px; font-weight: 600;
}
.lpg-details .d-drill:hover { filter: brightness(1.08); }
.lpg-details .d-drill svg { width: 14px; height: 14px; }

.lpg-legend .row, .lpg-filters .row { display: flex; align-items: center; gap: 8px; font-size: 12px; color: var(--ink-2); padding: 4px 0; }
.lpg-legend .dot, .lpg-filters .dot { width: 10px; height: 10px; border-radius: 50%; flex: none; }
.lpg-legend .edge-key { width: 16px; height: 0; border-top: 1px solid var(--ink-3); flex: none; }
.lpg-legend .edge-key.dir { border-top-style: solid; }
.lpg-legend .count { margin-left: auto; color: var(--ink-3); font-variant-numeric: tabular-nums; font-size: 11px; }
.lpg-filters .pill {
  display: inline-flex; align-items: center; gap: 7px; cursor: pointer; user-select: none;
  padding: 5px 8px; border-radius: var(--r-sm); width: 100%;
}
.lpg-filters .pill:hover { background: var(--raised); }
.lpg-filters .pill.off { opacity: 0.4; }
.lpg-filters .pill.off .dot { background: var(--ink-3) !important; }

.lpg-hint { font-size: 11px; color: var(--ink-3); line-height: 1.5; }
.lpg-reset {
  display: inline-flex; align-items: center; gap: 6px; font-size: 11.5px; color: var(--ink-2);
  border: 1px solid var(--border-strong); border-radius: var(--r-sm); padding: 5px 10px; cursor: pointer; background: var(--card);
}
.lpg-reset:hover { color: var(--ink); background: var(--raised); }
.lpg-reset svg { width: 12px; height: 12px; }

@media (max-width: 980px) {
  .lpg { grid-template-columns: 1fr; height: auto; }
  .lpg-canvas { height: 60vh; }
}