/* Shared vertical page shell spacing helpers. */

.p-2 {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.app-main > .p-2 {
  padding: 0 !important;
  margin: 0 !important;
}

.p-2 > .el-row,
.p-2 > .el-card,
.p-2 > .search-wrap,
.p-2 > div,
.p-2 > section {
  margin-bottom: 0 !important;
}

// --- CRUD / 树表页用混入（在 .vue 内 @use 后 @include） ---

@mixin action-link-buttons($background: rgba(53, 109, 255, 0.08)) {
  .data-table {
    :deep(.el-button.is-link) {
      width: 32px;
      height: 32px;
      border-radius: 10px;
      background: $background;
    }
  }
}

@mixin toolbar-responsive($mobile-breakpoint: 900px) {
  @media (max-width: $mobile-breakpoint) {
    .toolbar-shell {
      align-items: flex-start;
    }
  }
}

@mixin content-stack($gap: 12px) {
  .content-main {
    display: flex;
    flex-direction: column;
    gap: $gap;
  }
}

@mixin dept-tree-panel($padding-top: 6px) {
  .dept-tree {
    padding-top: $padding-top;
  }
}

@mixin collapsible-tree-layout($mobile-breakpoint: 900px) {
  .content-grid,
  .selector-layout {
    align-items: stretch;
  }

  .tree-panel-col,
  .tree-content-col {
    min-width: 0;
    transition:
      max-width 0.24s ease,
      flex-basis 0.24s ease;
  }

  .tree-panel-col.is-collapsed {
    max-width: 56px;
    flex: 0 0 56px;
  }

  .tree-content-col.is-tree-collapsed {
    max-width: calc(100% - 56px);
    flex: 0 0 calc(100% - 56px);
  }

  .tree-panel-shell,
  .side-panel {
    height: 100%;
  }

  .tree-panel-shell {
    --tree-panel-max-height: 620px;
  }

  .tree-panel-shell :deep(.el-card__header) {
    display: block;
    padding: 12px 16px !important;
  }

  .tree-panel-shell :deep(.el-card__body) {
    display: flex;
    flex-direction: column;
    height: var(--tree-panel-max-height);
    min-height: 0;
    max-height: var(--tree-panel-max-height);
    overflow: hidden;
  }

  .tree-panel-header {
    cursor: pointer;
    user-select: none;
  }

  .tree-panel-header::after {
    display: block;
    width: 9px;
    min-width: 9px;
    height: 9px;
    margin-left: auto;
    flex-shrink: 0;
    transform-origin: center;
    transform: rotate(135deg);
  }

  .tree-panel-header.is-collapsed {
    justify-content: center;
  }

  .side-panel.is-collapsed :deep(.el-card__body) {
    display: none;
  }

  .dept-tree,
  .selector-tree {
    flex: 1 1 auto;
    min-height: 180px;
    max-height: 100%;
    overflow-y: auto;
    overflow-x: hidden;
    padding-right: 4px;
    scrollbar-width: thin;
  }

  .dept-tree::-webkit-scrollbar,
  .selector-tree::-webkit-scrollbar {
    width: 6px;
  }

  .dept-tree::-webkit-scrollbar-thumb,
  .selector-tree::-webkit-scrollbar-thumb {
    border-radius: 999px;
    background: var(--app-text-muted);
    opacity: 0.55;
  }

  .dept-tree::-webkit-scrollbar-track,
  .selector-tree::-webkit-scrollbar-track {
    background: transparent;
  }

  .tree-panel-shell.is-collapsed :deep(.el-card__header) {
    padding: 12px 0 !important;
  }

  .tree-panel-shell.is-collapsed .tree-panel-header::after {
    margin-left: 0;
  }

  .tree-panel-shell.is-collapsed .tree-panel-header::after {
    transform: rotate(-45deg);
  }

  @media (max-width: $mobile-breakpoint) {
    .tree-panel-col,
    .tree-content-col {
      max-width: 100%;
      flex: 0 0 100%;
    }

    .tree-panel-shell {
      --tree-panel-max-height: 420px;
    }

    .side-panel.is-collapsed {
      height: auto;
    }
  }
}

@mixin table-crud-page($mobile-breakpoint: 900px, $background: rgba(53, 109, 255, 0.08)) {
  @include action-link-buttons($background);
  @include toolbar-responsive($mobile-breakpoint);
}

@mixin tree-table-crud-page(
  $mobile-breakpoint: 900px,
  $gap: 12px,
  $tree-padding-top: 6px,
  $background: rgba(53, 109, 255, 0.08)
) {
  @include content-stack($gap);
  @include dept-tree-panel($tree-padding-top);
  @include collapsible-tree-layout($mobile-breakpoint);
  @include table-crud-page($mobile-breakpoint, $background);
}