/* =========================================================
   Default 1.0.0 — collection.css（P2-⑧ 拆分，由 theme.css/theme.js 抽出）
   仅本页面加载；核心共享样式仍由 layouts/theme.liquid head 加载 theme.css/theme.js
   ========================================================= */

/* ===== CollectionPage.astro ===== */
  /* ===== 分类页布局 §4.3-4.4（从 StorefrontDefault.astro 迁移） ===== */

  /* BeikeShop category-intro: avatar(150px) + title + description */
  .category-intro {
    display: flex;
    align-items: center;
    gap: 20px;
    margin: 16px 0;
    padding: 12px 20px;
    border: 1px solid var(--color-border, #e5e7eb);
    border-radius: 12px;
    background: var(--color-bg, #fff);
  }
  .category-avatar {
    flex-shrink: 0;
    width: 150px;
    height: 150px;
    border-radius: 50%;
    overflow: hidden;
    background: var(--color-bg-alt, #f9fafb);
  }
  .category-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
  }
  .category-desc {
    flex: 1;
    min-width: 0;
  }
  .category-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-text, #111827);
    margin: 0 0 8px;
    line-height: 1.3;
  }
  .category-description {
    font-size: 14px;
    color: var(--color-text-muted, #6b7280);
    line-height: 1.6;
  }
  /* 独立 category-title(无 intro 容器,All Products 场景) */
  .category-title:only-child {
    margin: 16px 0;
  }

  .collection-layout {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: 48px;
    padding: 32px 0;
  }
  .collection-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--color-border);
  }
  .product-count {
    font-size: 14px;
    color: var(--color-text-muted);
  }

  /* BeikeShop toolbar-view-mode: grid/list 切换按钮组 */
  .toolbar-view-mode {
    display: inline-flex;
    align-items: center;
    gap: 4px;
  }
  .view-btn {
    width: 32px;
    height: 32px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--color-border, #e5e7eb);
    background: var(--color-bg, #fff);
    color: var(--color-text-muted, #6b7280);
    cursor: pointer;
    border-radius: 4px;
    transition: var(--transition, all 0.2s);
    padding: 0;
  }
  .view-btn:hover {
    color: var(--color-text, #111827);
    border-color: var(--color-text, #111827);
  }
  .view-btn.active {
    background: var(--color-text, #111827);
    color: var(--color-bg, #fff);
    border-color: var(--color-text, #111827);
  }
  .view-btn:focus-visible {
    outline: 2px solid var(--color-accent, #2563eb);
    outline-offset: 1px;
  }
  .toolbar-right {
    display: flex;
    align-items: center;
    gap: 16px;
  }
  /* C-1 toolbar 排序控件 */
  .toolbar-sort {
    display: flex;
    align-items: center;
    gap: 8px;
  }
  .toolbar-sort-label {
    font-size: 13px;
    color: var(--color-text-muted);
    font-weight: 500;
  }
  .toolbar-sort .sort-select {
    padding: 8px 32px 8px 12px;
    border: 1px solid var(--color-border);
    background: var(--color-bg);
    color: var(--color-text);
    font-size: 14px;
    font-family: inherit;
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23666' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 10px center;
    transition: var(--transition);
  }
  .toolbar-sort .sort-select:focus {
    outline: 2px solid var(--color-accent);
    outline-offset: 1px;
    border-color: var(--color-accent);
  }

  /* C-5 toolbar 容器（包住列数切换 + 排序） */
  .toolbar-controls {
    display: flex;
    align-items: center;
    gap: 16px;
  }
  /* C-5 网格列数切换按钮组 */
  .toolbar-columns {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    background: var(--color-bg-alt);
  }
  .column-btn {
    min-width: 28px;
    height: 28px;
    padding: 0 6px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: transparent;
    color: var(--color-text-muted);
    font-size: 12px;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    border-radius: 3px;
    transition: var(--transition);
  }
  .column-btn:hover {
    color: var(--color-text);
    background: var(--color-bg);
  }
  .column-btn.active {
    background: var(--color-text);
    color: var(--color-bg);
  }
  .column-btn:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 1px;
  }

  /* C-4 分页模式切换器（传统分页 / 加载更多） */
  .toolbar-pagination-mode {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    background: var(--color-bg-alt);
  }
  .pagination-mode-btn {
    min-width: 28px;
    height: 28px;
    padding: 0 6px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: transparent;
    color: var(--color-text-muted);
    cursor: pointer;
    border-radius: 3px;
    transition: var(--transition);
  }
  .pagination-mode-btn:hover {
    color: var(--color-text);
    background: var(--color-bg);
  }
  .pagination-mode-btn.active {
    background: var(--color-text);
    color: var(--color-bg);
  }
  .pagination-mode-btn:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 1px;
  }

  /* C-4 加载更多区域 */
  .load-more-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    margin-top: 40px;
    padding-top: 24px;
    border-top: 1px solid var(--color-border);
  }
  .load-more-section[hidden] {
    display: none;
  }
  .pagination-section[hidden] {
    display: none;
  }
  .load-more-btn {
    min-width: 200px;
    height: 44px;
    padding: 0 32px;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    background: var(--color-bg);
    color: var(--color-text);
    font-size: 14px;
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
    transition: var(--transition);
  }
  .load-more-btn:hover:not(:disabled) {
    border-color: var(--color-text);
  }
  .load-more-btn:disabled {
    cursor: not-allowed;
    opacity: 0.6;
  }
  .load-more-btn.loading .load-more-label::before {
    content: "";
    display: inline-block;
    width: 14px;
    height: 14px;
    margin-right: 8px;
    border: 2px solid var(--color-text-muted);
    border-top-color: var(--color-text);
    border-radius: 50%;
    animation: load-more-spin 0.6s linear infinite;
    vertical-align: middle;
  }
  @keyframes load-more-spin {
    to {
      transform: rotate(360deg);
    }
  }
  .load-more-status {
    margin: 0;
    font-size: 13px;
    color: var(--color-text-muted);
    text-align: center;
  }
  .load-more-status[hidden] {
    display: none;
  }
  .load-more-status.error {
    color: var(--color-error, #dc2626);
  }

  /* C-5 product-grid 列数控制（属性选择器特异性高于 .product-grid 类）
     2026-08-14 修复（对齐 default 2026-08-08 修复）：原为顶层规则且晚于 theme.css 加载，
     同等特异性下覆盖 theme.css @media(max-width:768px) 的强制 2 列，导致移动端仍按用户列数
     （默认 4 列）渲染窄卡片并横向溢出。改为仅桌面端（min-width:769px）应用，
     移动端由 theme.css/collection.css 的 max-width:768px 规则强制 2 列。 */
  @media (min-width: 769px) {
    .product-grid[data-columns="2"] {
      grid-template-columns: repeat(2, 1fr);
    }
    .product-grid[data-columns="3"] {
      grid-template-columns: repeat(3, 1fr);
    }
    .product-grid[data-columns="4"] {
      grid-template-columns: repeat(4, 1fr);
    }
  }

  /* §4.7 分页 */
  .collection-pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-top: 40px;
    padding-top: 24px;
    border-top: 1px solid var(--color-border);
  }
  .pagination-numbers {
    display: flex;
    align-items: center;
    gap: 4px;
  }
  .pagination-number,
  .pagination-prev,
  .pagination-next {
    min-width: 36px;
    height: 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0 10px;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    font-size: 14px;
    color: var(--color-text);
    text-decoration: none;
    transition: var(--transition);
  }
  .pagination-number:hover,
  .pagination-prev:hover,
  .pagination-next:hover {
    border-color: var(--color-text);
  }
  .pagination-number.active {
    background: var(--color-text);
    color: var(--color-bg);
    border-color: var(--color-text);
  }
  .pagination-ellipsis {
    padding: 0 4px;
    color: var(--color-text-muted);
  }

  /* 分类页响应式 */
  @media (max-width: 768px) {
    /* 2026-08-16 修复：Filters 按钮与 items 数量、排序下拉同处一行。
       .facets 收缩为按钮宽度，.collection-main display:contents 使 toolbar 与按钮同行，
       商品网格/分页 flex-basis:100% 独占下一行。 */
    .collection-layout {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      column-gap: 12px;
      row-gap: 12px;
    }
    /* 2026-08-14 修复（对齐 default 2026-08-08 修复）：移动端单列 grid 子项默认 min-width:auto
       不收缩，宽内容（商品网格）撑破 1fr 轨道导致窄视口横向溢出。加 min-width:0 使子项可收缩。 */
    .collection-layout > * {
      min-width: 0;
    }
    .collection-main {
      display: contents;
    }
    .collection-toolbar {
      flex: 1 1 0%;
      min-width: 0;
      margin-bottom: 0;
      padding-bottom: 0;
      border-bottom: none;
    }
    /* 商品网格/已选筛选栏/分页独占一行 */
    .collection-main .selected-filters-bar,
    .collection-main .product-grid,
    .collection-main .pagination-section,
    .collection-main .load-more-section {
      flex-basis: 100%;
      min-width: 0;
    }
    .collection-pagination {
      flex-wrap: wrap;
      gap: 8px;
    }
    /* BeikeShop category-intro 移动端:avatar 缩小,纵向排列 */
    .category-intro {
      flex-direction: column;
      text-align: center;
      gap: 12px;
      padding: 16px;
    }
    .category-avatar {
      width: 96px;
      height: 96px;
    }
    .category-title {
      font-size: 20px;
    }
    /* toolbar 移动端:view-mode + count 保持,sort 紧凑 */
    .toolbar-right {
      gap: 8px;
    }
    /* 2026-08-16 修复：移动端强制 2 列网格，grid/list 切换无实际效果，隐藏避免误导 */
    .toolbar-view-mode {
      display: none;
    }
  }