/* ===== 统一文件树（浏览/编辑/分享三模式共用）===== */

.file-tree-menu {
  flex: 1;
  padding: 8px;
  overflow-y: auto;
  overflow-x: hidden;
  border-right: none;
  background: var(--sider-bg);
  color: var(--text-color);
  scrollbar-width: thin;
  scrollbar-color: var(--border-color) transparent;
  /* 悬停行背景：明/暗主题分别取与侧栏背景有足够反差的浅色 */
  --file-tree-hover-bg: rgba(0, 0, 0, 0.055);
}
body.dark .file-tree-menu {
  --file-tree-hover-bg: rgba(255, 255, 255, 0.08);
}

/* 细滚动条 */
.file-tree-menu::-webkit-scrollbar {
  width: 6px;
}
.file-tree-menu::-webkit-scrollbar-track {
  background: transparent;
}
.file-tree-menu::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 3px;
}
.file-tree-menu::-webkit-scrollbar-thumb:hover {
  background: var(--text-color-secondary);
}

.file-tree-menu .ant-menu-item,
.file-tree-menu .ant-menu-submenu-title {
  overflow: hidden;
  display: flex !important;
  align-items: center;
  min-width: 0;
  border-radius: 6px;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.file-tree-menu .ant-menu-title-content {
  display: flex;
  align-items: center;
  min-width: 0;
  overflow: hidden;
}

/* 统一标签：兼作右键菜单命中区域（编辑模式），三模式外观一致 */
.file-tree-label {
  display: flex;
  align-items: center;
  gap: 6px;
  width: 100%;
  min-width: 0;
  user-select: none;
  padding: 4px 8px;
  margin: -4px -8px;
  border-radius: 6px;
  transition: color 0.15s ease;
  color: var(--text-color);
}

.file-tree-label-text {
  flex: 1;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.file-tree-share-icon {
  color: var(--link-color);
  font-size: 12px;
  flex: none;
  opacity: 0.9;
}

/* ===== 悬停状态（重设计）：整行浅色高亮 + 文字变主题色 =====
   仅对未选中行生效，避免覆盖选中态 */
.file-tree-menu .ant-menu-item:not(.ant-menu-item-selected):hover,
.file-tree-menu .ant-menu-submenu:not(.file-tree-folder-selected) > .ant-menu-submenu-title:hover {
  background-color: var(--file-tree-hover-bg) !important;
}

.file-tree-menu .ant-menu-item:not(.ant-menu-item-selected):hover .file-tree-label,
.file-tree-menu .ant-menu-submenu:not(.file-tree-folder-selected) > .ant-menu-submenu-title:hover .file-tree-label {
  color: var(--link-color) !important;
}

/* ===== 选中节点：背景、文字、图标统一高亮（选中态优先于悬停态） ===== */
.file-tree-menu .ant-menu-item-selected,
.file-tree-folder-selected > .ant-menu-submenu-title {
  background-color: var(--selected-bg) !important;
}

.file-tree-menu .ant-menu-item-selected .file-tree-label,
.file-tree-folder-selected > .ant-menu-submenu-title .file-tree-label,
.file-tree-menu .ant-menu-submenu-selected > .ant-menu-submenu-title .file-tree-label {
  color: var(--link-color) !important;
  font-weight: 500;
}

.file-tree-menu .ant-menu-item-selected .ant-menu-item-icon,
.file-tree-folder-selected > .ant-menu-submenu-title .ant-menu-item-icon,
.file-tree-menu .ant-menu-submenu-selected > .ant-menu-submenu-title .ant-menu-item-icon {
  color: var(--link-color) !important;
}

.file-tree-folder-selected > .ant-menu-submenu-title:hover {
  background-color: var(--selected-bg) !important;
}

/* 空状态 */
.file-tree-empty {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px 20px;
  color: var(--text-color-secondary);
}