:root{
  --ve-virtual-phantom-index: -1;
  --ve-normal-cell-selection-border-index: 0;
  --ve-normal-cell-selection-corner-index: 1;
  --ve-column-resizer-handler-index: 50;
  --ve-column-resizer-line-index: 50;
}

.fan-table *,
.fan-table *:before,
.fan-table *:after {
  box-sizing: border-box;
  // margin: 0;
  // padding: 0;
}

.fan-table {
  position: relative;
  overflow: hidden;

  // table container
  .fan-table-container {
    position: relative;
    overflow-y: auto;
    height: 100%;
    width: 100%;
    // 修复嵌套表格外层开启单元格选择，子表格未开启单元格选择，导致默认文字无法选中的问题
    user-select: text;

    // table content wrapper
    .fan-table-content-wrapper {
      position: relative;
      left: 0;
      right: 0;
      top: 0;

      // table content
      table.fan-table-content {
        min-width: 100%;
        table-layout: fixed;
        border-collapse: separate;
        border-spacing: 0;

        // 表头（需要处理多表头情况）
        thead.fan-table-header {
          tr.fan-table-header-tr {
            height: var(--fan-table-head-row-height);

            th.fan-table-header-th {
              background-color: var(--fan-table-header-background-color);
              padding: var(--fan-table-head-row-td-padding);
              font-weight: 500;
              color: var(--fan-table-head-text-color);
              font-size: var(--fan-table-head-text-font-size);

              // cell indicator
              &.fan-table-cell-indicator {
                background-color: var(--fan-table-header-cell-indicator-background-color);
              }

              // cell indicator active
              &.fan-table-cell-indicator-active {
                background-color: var(--fan-table-header-cell-indicator-active-background-color);
                color: var(--fan-table-head-indicator-active-text-color);
              }
            }
          }

          // 固定头
          &.fan-table-fixed-header {
            tr th {
              position: sticky;
              z-index: var(--ve-fixed-header-index);
            }
          }

          .fan-table-header-tr {
            .fan-table-header-th {

              // 固定左列、右列
              &.fan-table-fixed-left,
              &.fan-table-fixed-right {
                position: sticky;
                z-index: var(--ve-fixed-header-cell-index);
              }

              // checkbox
              .fan-table-checkbox-wrapper {
                width: 25px;
              }

              // sort
              .fan-table-sort {
                display: inline-block;
                position: relative;
                width: 16px;
                height: 16px;
                margin-left: 5px;
                color: var(--fan-table-sort-icon-default-color);
                pointer-events: none;

                .fan-table-sort-icon {
                  position: absolute;
                  display: block;
                  font-size: 14px;

                  &.fan-table-sort-icon-top {
                    top: 1px;
                  }

                  &.fan-table-sort-icon-bottom {
                    top: 9px;
                  }

                  &.active {
                    color: var(--fan-table-sort-icon-active-color);
                  }
                }
              }

              &.fan-table-sortable-column {
                cursor: pointer;
              }

              /* filter */
              .fan-table-filter {
                display: inline-block;
                position: relative;
                width: 0;
                height: 16px;
                cursor: pointer;

                .fan-table-filter-icon {
                  color: var(--fan-table-header-filter-icon-color);
                  position: absolute;
                  top: 0;
                  left: 5px;
                }
              }
            }
          }
        }

        // tbody
        tbody.fan-table-body {

          tr.fan-table-body-tr,
          tr.fan-table-expand-tr {
            height: var(--fan-table-body-row-height);

            td.fan-table-body-td,
            td.fan-table-expand-td {
              background-color: var(--fan-table-body-background-color);
              color: var(--fan-table-body-text-color);
              // hack content fill td height
              //height: 1px;
              height: inherit;
              font-size: var(--fan-table-body-text-font-size);
              // 解决展开表格偶发抖动的问题
              overflow: hidden;
            }

            td.fan-table-body-td {
              padding: var(--fan-table-body-row-td-padding);
              white-space: pre-wrap;
              overflow: hidden;
            }

            td.fan-table-operation-col {
              background-color: var(--fan-table-td-operation-column-background-color);

              // cell indicator
              &.fan-table-cell-indicator {
                background-color: var(--fan-table-body-cell-indicator-background-color);
              }

              // cell indicator active
              &.fan-table-cell-indicator-active {
                background-color: var(--fan-table-body-cell-indicator-active-background-color);
                color: var(--fan-table-body-indicator-active-text-color);
              }
            }
          }

          // 展开行
          tr.fan-table-expand-tr {
            display: table-row;
          }

          // 滚动中效果
          tr.fan-table-body-row-scrolling {
            &>td {
              background-color: var(--fan-table-body-row-row-scrolling-background-color);
            }
          }

          // 斑马纹
          &.fan-table-stripe {
            tr.fan-table-body-tr:nth-child(2n + 1) td {
              background-color: var(--fan-table-body-row-stripe-background-color);
            }
          }

          // 行悬浮效果
          &.fan-table-row-hover {
            tr.fan-table-body-tr:hover td {
              background-color: var(--fan-table-body-row-hover-background-color);
            }
          }

          // 行点击高亮
          &.fan-table-row-highlight {
            tr.fan-table-body-tr {
              &.fan-table-tr-highlight {
                td {
                  background-color: var(--fan-table-body-row-highlight-background-color);
                }
              }
            }
          }

          .fan-table-body-tr {
            .fan-table-body-td {

              // 固定左列、右列
              &.fan-table-fixed-left,
              &.fan-table-fixed-right {
                position: sticky;
                z-index: var(--ve-fixed-body-cell-index);
              }

              // expand row icon
              .fan-table-row-expand-icon {
                cursor: pointer;
                display: inline-block;
                width: 20px;
                height: 20px;
                transition: transform 0.3s;

                i {
                  display: inline-flex;
                }

                &.fan-table-expand-icon-collapsed {
                  transform: rotate(90deg);
                }
              }

              // checkbox
              .fan-table-checkbox-wrapper {
                width: 25px;
              }

              // ellipsis
              .fan-table-body-td-span-ellipsis {
                overflow: hidden;
                display: -webkit-box;
                text-overflow: ellipsis;
                /* -webkit-line-clamp: 1; */
                -webkit-box-orient: vertical;
              }
            }
          }

          // expand row
          .fan-table-expand-tr {
            .fan-table-expand-td-content {
              position: sticky;
              z-index: var(--ve-fixed-body-cell-index);
              left: 0px;
              padding: var(--fan-table-body-row-expand-content-padding);
            }
          }
        }

        //  tfooter
        tfoot.fan-table-footer {
          tr.fan-table-footer-tr {
            height: var(--fan-table-foot-row-height);

            td.fan-table-footer-td {
              background-color: var(--fan-table-foot-background-color);
              color: var(--fan-table-foot-text-color);
              padding: var(--fan-table-foot-row-td-padding);
              font-size: var(--fan-table-foot-text-font-size);
            }
          }

          // 固定footer
          &.fan-table-fixed-footer {
            tr td {
              position: sticky;
              z-index: var(--ve-fixed-foot-index);
            }
          }

          .fan-table-footer-tr {
            .fan-table-footer-td {

              // 固定左列、右列
              &.fan-table-fixed-left,
              &.fan-table-fixed-right {
                position: sticky;
                z-index: var(--ve-fixed-foot-cell-index);
              }
            }
          }
        }
      }

      // cell selection
      .fan-table-selection-wrapper {
        .fan-table-selection-fixed-left {

          .fan-table-selection-current,
          .fan-table-selection-normal-area,
          .fan-table-selection-autofill-area {
            .fan-table-selection-corner {
              position: absolute;
              z-index: var(--ve-fixed-cell-selection-corner-index);
            }

            .fan-table-selection-border {
              position: absolute;
              z-index: var(--ve-fixed-cell-selection-border-index);
            }
          }

          .fan-table-selection-normal-area-layer {
            position: absolute;
            z-index: var(--ve-fixed-cell-selection-border-index);
          }
        }

        .fan-table-selection-middle {

          .fan-table-selection-current,
          .fan-table-selection-normal-area,
          .fan-table-selection-autofill-area {
            .fan-table-selection-corner {
              position: absolute;
              z-index: var(--ve-normal-cell-selection-corner-index);
            }

            .fan-table-selection-border {
              position: absolute;
              z-index: var(--ve-normal-cell-selection-border-index);
            }
          }

          .fan-table-selection-normal-area-layer {
            position: absolute;
            z-index: var(--ve-normal-cell-selection-border-index);
          }
        }

        .fan-table-selection-fixed-right {

          .fan-table-selection-current,
          .fan-table-selection-normal-area,
          .fan-table-selection-autofill-area {
            .fan-table-selection-corner {
              position: absolute;
              z-index: var(--ve-fixed-cell-selection-corner-index);
            }

            .fan-table-selection-border {
              position: absolute;
              z-index: var(--ve-fixed-cell-selection-border-index);
            }
          }

          .fan-table-selection-normal-area-layer {
            position: absolute;
            z-index: var(--ve-fixed-cell-selection-border-index);
          }
        }

        // 浮层
        .fan-table-selection-normal-area-layer {
          background-color: var(--fan-table-selection-area-layer-background-color);
          opacity: 0.1;
          pointer-events: none;
        }

        .fan-table-selection-current,
        .fan-table-selection-normal-area {
          .fan-table-selection-corner {
            display: block;
            height: 8px;
            width: 8px;
            border-style: solid;
            border-color: var(--fan-table-selection-corner-border-color);
            background-color: var(--fan-table-selection-corner-background-color);
            cursor: crosshair;
          }

          .fan-table-selection-border {
            display: block;
            background-color: var(--fan-table-selection-border-color);
          }
        }

        .fan-table-selection-autofill-area {
          .fan-table-selection-border {
            display: block;
            background-color: var(--fan-table-selection-autofill-border-color);
          }
        }

        .fan-table-selection-border {
          pointer-events: none;
        }
      }
    }

    // virtual scroll phantom
    .fan-table-virtual-phantom {
      &.fan-table-virtual-scroll {
        position: absolute;
        left: 0;
        top: 0;
        right: 0;
        z-index: var(--ve-virtual-phantom-index);
      }
    }

    // column fix effect
    &.fan-table-container-left-scrolling {
      .fan-table-last-left-fixed-column {
        border-right-color: var(--fan-table-column-fixed-border-color);
      }
    }

    &.fan-table-container-right-scrolling {
      .fan-table-first-right-fixed-column {
        border-left: 1px solid var(--fan-table-column-fixed-border-color);
      }
    }

    // autofilling
    &.fan-table-autofilling {
      cursor: crosshair;
    }

    // enable cell selection
    &.fan-table-enable-cell-selection {
      user-select: none;
    }

    // border x
    .fan-table-border-x {

      th,
      td {
        border-bottom: 1px solid var(--fan-table-border-color);
      }

      tr:first-child>th,
      // footer
      tr.fan-table-footer-tr:first-child>td {
        border-top: 1px solid var(--fan-table-border-color);
      }
    }

    // border y
    .fan-table-border-y {

      th,
      td {
        border-right: 1px solid var(--fan-table-border-color);
      }

      th:first-child,
      td:first-child {
        border-left: 1px solid var(--fan-table-border-color);
      }
    }
  }

  // border around
  &.fan-table-border-around {
    border: 1px solid var(--fan-table-border-color);

    .fan-table-container {
      table.fan-table-content {
        &.fan-table-border-x {
          tr:last-child>td {
            border-bottom: 0px;
          }

          tr:first-child>th {
            border-top: 0px;
          }
        }

        &.fan-table-border-y {

          th.fan-table-last-column,
          td:last-child {
            border-right: 0px;
          }

          th:first-child,
          td:first-child {
            border-left: 0px;
          }
        }
      }
    }
  }

  // edit input
  .fan-table-edit-input-container {
    position: absolute;
    right: auto;

    .fan-table-edit-input {
      resize: none;
      overflow-y: visible;
      border: none;
      outline-width: 0;
      margin: 0;
      padding: 1px 5px 0;
      font-family: inherit;
      line-height: var(--fan-table-td-editing-line-height);
      font-size: inherit;
      border: 2px solid var(--fan-table-td-editing-border-color);
      box-shadow: 1px 2px 5px 0 var(--fan-table-td-editing-box-shadow-color);
      display: block;
      color: var(--fan-table-td-editing-font-color);
      border-radius: 0;
      background-color: var(--fan-table-td-editing-background-color);
    }
  }

  // column resizer
  .fan-table-column-resizer {
    &-handler {
      position: absolute;
      cursor: col-resize;
      // left: 0;
      top: 0;
      bottom: 0;
      width: 5px;
      height: 40px;
      z-index: var(--ve-column-resizer-handler-index);

      &.active {
        background-color: var(--fan-table-column-resizer-handler-background-color);
      }
    }

    &-line {
      position: absolute;
      pointer-events: none;
      // left: 0;
      top: 0;
      bottom: 0;
      width: 0;
      border-left: 1px solid var(--fan-table-column-resizer-line-background-color);
      z-index: var(--ve-column-resizer-line-index);
    }
  }
}