@tree-prefix-cls: atui-tree;

.@{tree-prefix-cls} {
  margin: 0;
  padding: 5px;
  font-size: 12px;
  li {
    padding: 0;
    margin: 7px 0;
    list-style: none;
    white-space: nowrap;
    outline: 0;
    a[draggable],
    a[draggable="true"] {
      -moz-user-select: none;
      -khtml-user-select: none;
      -webkit-user-select: none;
      user-select: none;
      /* Required to make elements draggable in old WebKit */
      -khtml-user-drag: element;
      -webkit-user-drag: element;
    }
    &.drag-over {
      > a[draggable] {
        background-color: @primary-color;
        color: white;
        opacity: 0.8;
      }
    }
    &.drag-over-gap-top {
      > a[draggable] {
        border-top: 2px @primary-color solid;
      }
    }
    &.drag-over-gap-bottom {
      > a[draggable] {
        border-bottom: 2px @primary-color solid;
      }
    }
    &.filter-node {
      > a {
        color: red !important;
        font-weight: bold!important;
      }
    }
    ul {
      margin: 0;
      padding: 0 0 0 18px;
    }
    a {
      display: inline-block;
      padding: 1px 5px;
      border-radius: 2px;
      margin: 0;
      cursor: pointer;
      text-decoration: none;
      vertical-align: top;
      color: #666;
      transition: all 0.3s ease;
      &:hover {
        background-color: tint(@primary-color, 90%);
      }
      &.@{tree-prefix-cls}-node-selected {
        background-color: tint(@primary-color, 80%);
      }
    }
    span {
      &.@{tree-prefix-cls}-checkbox {
        margin: 2px 4px 0 0;
      }
      &.@{tree-prefix-cls}-switcher,
      &.@{tree-prefix-cls}-iconEle {
        margin: 0;
        width: 16px;
        height: 16px;
        line-height: 16px;
        display: inline-block;
        vertical-align: middle;
        border: 0 none;
        cursor: pointer;
        outline: none;
      }
      &.@{tree-prefix-cls}-icon_loading {
        &:after {
          content: '\e6a1';
          display: inline-block;
          font-family: 'anticon';
          font-weight: bold;
          animation: loadingCircle 1s infinite linear;
          margin-top: 8px;
        }
      }
      &.@{tree-prefix-cls}-switcher {
        transition: transform .3s ease;
        transform: rotate(90deg) scale(.6);
        &-open {
          transform: rotate(180deg) scale(.6);
        }
      }
    }
  }
  &-child-tree {
    display: none;
    &-open {
      display: block;
    }
  }
  &-treenode-disabled {
    >span,
    >a,
    >a span {
      color: #ccc;
      cursor: not-allowed;
    }
  }
  &-icon__open {
    margin-right: 2px;
    vertical-align: top;
  }
  &-icon__close {
    margin-right: 2px;
    vertical-align: top;
  }
}