.scene-hierarchy {
  display: flex;
  flex-direction: column;
  height: 100%;
  background-color: #1e1e1e;
  color: #cccccc;
}

.hierarchy-header {
  padding: 10px;
  border-bottom: 1px solid #3c3c3c;
  background-color: #252526;
}

.hierarchy-header h3 {
  margin: 0;
  font-size: 14px;
  font-weight: 600;
  color: #cccccc;
}

.hierarchy-content {
  flex: 1;
  overflow-y: auto;
  padding: 8px 0;
}

.empty-state {
  padding: 20px;
  text-align: center;
  color: #858585;
  font-size: 13px;
}

.entity-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.entity-item {
  display: flex;
  align-items: center;
  padding: 6px 12px;
  cursor: pointer;
  user-select: none;
  transition: background-color 0.1s;
}

.entity-item:hover {
  background-color: #2a2d2e;
}

.entity-item.selected {
  background-color: #094771;
}

.entity-item.selected:hover {
  background-color: #0e639c;
}

.entity-icon {
  margin-right: 8px;
  font-size: 14px;
}

.entity-name {
  font-size: 13px;
  color: #cccccc;
}