/* =============================================
   ARBRE GÉNÉALOGIQUE
   ============================================= */
#familyTreeDiagram {
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 0;
  overflow: auto;
  min-height: 500px;
  position: relative;
}

#familyTreeDiagram svg {
  min-width: 600px;
  display: block;
}

/* ---- Contrôles de calques ---- */
#layer-controls {
  margin-bottom: 16px;
}

.layer-controls-inner {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 10px 16px;
}

.lc-title {
  font-size: .8rem;
  color: var(--text-soft);
  margin-right: 4px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.lc-btn {
  display: flex;
  align-items: center;
  gap: 7px;
  background: rgba(255,255,255,.04);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  padding: 6px 13px;
  font-size: .8rem;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: all .2s;
}

.lc-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--lc-color, #888);
  opacity: .3;
  transition: opacity .2s;
  flex-shrink: 0;
}

.lc-btn.active {
  background: rgba(255,255,255,.07);
  border-color: var(--border-hover);
  color: var(--text);
}
.lc-btn.active .lc-dot { opacity: 1; }

.lc-btn:hover { background: rgba(255,255,255,.09); color: var(--text); }

/* ---- Légende ---- */
.arbre-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 16px;
  padding: 14px 18px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .78rem;
  color: var(--text-soft);
}

.legend-line {
  width: 24px; height: 2px;
  border-radius: 1px;
  flex-shrink: 0;
}
.legend-line.dashed {
  background: none;
  border-top: 2px dashed currentColor;
}
.legend-dot-lg {
  width: 12px; height: 12px;
  border-radius: 3px;
  flex-shrink: 0;
}