/* Family tree — D3.js canvas styles */
#tree-container {
  width: 100%;
  height: 600px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 5px;
  overflow: hidden;
}

.node circle {
  fill: var(--card);
  stroke: var(--sepia);
  stroke-width: 2px;
  cursor: pointer;
  transition: all .15s;
}
.node.male   circle { stroke: #1e3a8a; }
.node.female circle { stroke: #831843; }
.node circle:hover  { stroke-width: 3px; }

.link {
  fill: none;
  stroke: var(--border);
  stroke-width: 1.5px;
}