.file-tree {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  padding: 0.75rem;
  max-height: 380px;
  overflow-y: auto;
  font-size: 0.9rem;
}

.tree-folder {
  margin-bottom: 2px;
}

.tree-folder-header {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 6px;
  border-radius: 4px;
  cursor: pointer;
  user-select: none;
  color: rgba(255, 255, 255, 0.85);
  font-weight: 600;
}

.tree-folder-header:hover {
  background: rgba(255, 255, 255, 0.07);
}

.tree-folder-arrow {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.5);
  width: 12px;
}

.tree-folder-name {
  color: rgba(255, 255, 255, 0.85);
}

.tree-folder-children {
  padding-left: 18px;
  border-left: 1px solid rgba(255, 255, 255, 0.08);
  margin-left: 6px;
}

.tree-file {
  margin-bottom: 1px;
}

.tree-file-label {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 6px;
  border-radius: 4px;
  cursor: pointer;
  color: rgba(255, 255, 255, 0.7);
}

.tree-file-label:hover {
  background: rgba(255, 255, 255, 0.06);
  color: rgba(255, 255, 255, 0.9);
}

.tree-file-label input[type="checkbox"] {
  accent-color: #7c6fcd;
  width: 14px;
  height: 14px;
  cursor: pointer;
  flex-shrink: 0;
}

.tree-file-name {
  font-size: 0.875rem;
}

.tree-loading,
.tree-error,
.tree-empty {
  padding: 1rem;
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.9rem;
  text-align: center;
}

.tree-error {
  color: #ff7b72;
}