.jstree-anchor.drop-target {
  background-color: #d1e7dd;
  border-radius: 4px;
}

.upload-zone {
  border: 2px dashed #ccc;
  border-radius: 10px;
  padding: 30px;
  margin-top: 15px;
  text-align: center;
  color: #666;
  cursor: pointer;
  transition: background-color 0.2s;
}

.upload-zone.dragover {
  background-color: #e6f7ff;
  border-color: #3399ff;
  color: #000;
}