/* ============================================================
 * ThinkDIY 排行 - 前台样式
 *
 * 颜色策略（变量定义在 .tdr-* 容器上，不是 :root，
 * 这样才能读到 <body> 上主题定义的 --wp--preset--color-*）
 *
 * fallback 顺序：
 *   1. 插件后台设置页填的自定义色 --tdr-custom-*
 *   2. 新区块主题的语义色 --wp--preset--color--primary / contrast / base …
 *   3. 旧默认调色板 --wp--preset--color--black / white / cyan-bluish-gray
 *   4. 硬编码默认值
 * ============================================================ */

.tdr-list-wrapper,
.tdr-view-wrapper {
    --tdr-primary:        var(--tdr-custom-primary,        var(--wp--preset--color--primary, var(--wp--preset--color--black, #1a1a1a)));
    --tdr-primary-hover:  var(--tdr-custom-primary-hover,  var(--wp--preset--color--secondary, #333333));

    --tdr-text:           var(--tdr-custom-text,           var(--wp--preset--color--contrast, var(--wp--preset--color--black, #1a1a1a)));
    --tdr-text-secondary: var(--tdr-custom-text-secondary, var(--wp--preset--color--cyan-bluish-gray, #6b7280));

    --tdr-surface:        var(--tdr-custom-surface,        var(--wp--preset--color--base, var(--wp--preset--color--white, #ffffff)));
    --tdr-border:         var(--tdr-custom-border,         var(--wp--preset--color--cyan-bluish-gray, #e5e7eb));
    --tdr-bg-hover:       var(--tdr-custom-bg,             var(--wp--preset--color--cyan-bluish-gray, #f0f0f0));
}

/* ============================================================
 * 容器
 * ============================================================ */
.tdr-list-wrapper,
.tdr-view-wrapper {
    max-width: 900px;
    margin: 0 auto;
    padding: 10px 0 40px;
    color: var(--tdr-text);
}

/* ============================================================
 * 分类导航
 * ============================================================ */
.tdr-category-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 0 0 24px;
}

.tdr-cat-link {
    display: inline-block;
    padding: 6px 16px;
    background: var(--tdr-bg-hover);
    border-radius: 20px;
    color: var(--tdr-text);
    text-decoration: none;
    font-size: 14px;
    transition: background 0.2s, color 0.2s;
}
.tdr-cat-link:hover {
    background: var(--tdr-border);
}
.tdr-cat-link.active {
    background: var(--tdr-primary);
    color: #fff;
}

/* ============================================================
 * 列表
 * ============================================================ */
.tdr-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.tdr-list-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 14px 18px;
    background: var(--tdr-surface);
    border: 1px solid var(--tdr-border);
    border-radius: 10px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
    transition: box-shadow 0.2s;
    color: var(--tdr-text);
}
.tdr-list-item:hover {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.tdr-list-info {
    display: flex;
    align-items: center;
    gap: 12px;
    flex: 1;
    min-width: 0;
    flex-wrap: wrap;
}

.tdr-list-cat {
    display: inline-block;
    padding: 2px 12px;
    background: var(--tdr-bg-hover);
    border-radius: 14px;
    color: var(--tdr-text);
    text-decoration: none;
    font-size: 13px;
    white-space: nowrap;
}
.tdr-list-cat:hover {
    background: var(--tdr-border);
}

.tdr-list-title {
    font-size: 16px;
    font-weight: 500;
    color: var(--tdr-text);
    text-decoration: none;
    flex: 1;
    min-width: 0;
    word-break: break-word;
}
.tdr-list-title:hover {
    text-decoration: underline;
}

.tdr-list-date {
    font-size: 12px;
    color: var(--tdr-text-secondary);
    white-space: nowrap;
}

.tdr-list-btn {
    display: inline-block;
    padding: 6px 18px;
    background: var(--tdr-primary);
    color: #fff;
    border-radius: 6px;
    font-size: 13px;
    text-decoration: none;
    white-space: nowrap;
    transition: opacity 0.2s;
}
.tdr-list-btn:hover {
    opacity: 0.85;
}

/* ============================================================
 * 分页
 * ============================================================ */
.tdr-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 6px;
    padding: 24px 0 8px;
    flex-wrap: wrap;
}

.tdr-pagination .page-numbers {
    min-width: 34px;
    height: 34px;
    padding: 0 12px;
    border: 1px solid var(--tdr-border);
    background: var(--tdr-surface);
    border-radius: 6px;
    color: var(--tdr-text);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    transition: 0.2s;
}
.tdr-pagination .page-numbers:hover {
    background: var(--tdr-bg-hover);
}
.tdr-pagination .page-numbers.current {
    background: var(--tdr-primary);
    color: #fff;
    border-color: var(--tdr-primary);
}

/* ============================================================
 * 空状态
 * ============================================================ */
.tdr-empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--tdr-text-secondary);
}
.tdr-empty-state .tdr-empty-icon {
    font-size: 40px;
    display: block;
    margin-bottom: 12px;
}
.tdr-empty-state h3 {
    font-weight: 400;
    font-size: 17px;
    color: var(--tdr-text);
    margin: 0 0 4px;
}
.tdr-empty-state p {
    font-size: 13px;
    margin: 0;
}

/* ============================================================
 * 详情页
 * ============================================================ */
.tdr-view-title {
    font-size: 32px;
    font-weight: 500;
    margin: 0 0 10px;
    line-height: 1.3;
    color: var(--tdr-text);
    word-break: break-word;
}

.tdr-view-meta {
    display: flex;
    gap: 16px;
    font-size: 14px;
    color: var(--tdr-text-secondary);
    padding-bottom: 16px;
    border-bottom: 2px solid var(--tdr-border);
    margin-bottom: 22px;
    flex-wrap: wrap;
}

.tdr-view-cat {
    display: inline-block;
    padding: 2px 14px;
    background: var(--tdr-bg-hover);
    border-radius: 16px;
    color: var(--tdr-text);
    font-size: 13px;
}

.tdr-view-cover {
    margin-bottom: 20px;
    border-radius: 12px;
    overflow: hidden;
}
.tdr-view-cover img {
    width: 100%;
    height: auto;
    display: block;
}

.tdr-view-desc {
    font-size: 16px;
    line-height: 1.8;
    color: var(--tdr-text-secondary);
    background: var(--tdr-bg-hover);
    padding: 16px 22px;
    border-radius: 6px;
    border-left: 4px solid var(--tdr-primary);
    margin-bottom: 28px;
}

/* ============================================================
 * 条目
 * ============================================================ */
.tdr-items {
    margin-top: 8px;
}

.tdr-item-block {
    background: var(--tdr-bg-hover);
    border: 1px solid var(--tdr-border);
    border-radius: 6px;
    margin-bottom: 12px;
    overflow: hidden;
    transition: border-color 0.2s;
}
.tdr-item-block:hover {
    border-color: var(--tdr-primary);
}

.tdr-item-header {
    padding: 14px 20px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--tdr-bg-hover);
    transition: background 0.2s;
    user-select: none;
}
.tdr-item-header:hover {
    background: var(--tdr-border);
}

.tdr-item-title {
    margin: 0;
    font-weight: bold;
    font-size: 20px;
    flex: 1;
    word-break: break-word;
}

.tdr-toggle {
    font-size: 18px;
    color: var(--tdr-text-secondary);
    transition: transform 0.3s;
    margin-left: 12px;
    flex-shrink: 0;
}
.tdr-toggle.open {
    transform: rotate(180deg);
}

.tdr-item-body {
    padding: 16px 20px 20px;
    border-top: 1px solid var(--tdr-border);
    background: var(--tdr-surface);
}

.tdr-item-content {
    font-size: 15px;
    line-height: 1.8;
    color: var(--tdr-text);
    word-break: break-word;
}
.tdr-item-content img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 8px auto;
    border-radius: 4px;
}
.tdr-item-content video,
.tdr-item-content iframe {
    max-width: 100%;
    display: block;
    margin: 8px auto;
    border-radius: 4px;
}
.tdr-item-content .ql-align-center  { text-align: center; }
.tdr-item-content .ql-align-right   { text-align: right; }
.tdr-item-content .ql-align-justify { text-align: justify; }
.tdr-item-content p { margin: 0 0 0.8em; }
.tdr-item-content p:last-child { margin-bottom: 0; }

.tdr-empty-tip {
    color: var(--tdr-text-secondary);
    padding: 10px 0;
    font-size: 14px;
}

/* ============================================================
 * 返回按钮
 * ============================================================ */
.tdr-view-back {
    margin-top: 30px;
    text-align: center;
}
.tdr-view-back a {
    display: inline-block;
    padding: 10px 32px;
    background: var(--tdr-primary);
    color: #fff;
    border-radius: 6px;
    text-decoration: none;
    font-size: 15px;
    transition: 0.2s;
}
.tdr-view-back a:hover {
    background: var(--tdr-primary-hover);
    transform: translateY(-2px);
}

/* ============================================================
 * 响应式
 * ============================================================ */
@media (max-width: 640px) {
    .tdr-view-title {
        font-size: 22px;
    }

    .tdr-list-item {
        padding: 10px 14px;
        gap: 8px;
        flex-wrap: wrap;
    }
    .tdr-list-info {
        width: 100%;
        gap: 8px;
    }
    .tdr-list-title {
        flex: 1 1 100%;
        font-size: 15px;
    }
    .tdr-list-date {
        display: none;
    }
    .tdr-list-btn {
        width: 100%;
        text-align: center;
    }

    .tdr-item-header {
        padding: 10px 14px;
    }
    .tdr-item-title {
        font-size: 16px;
    }
    .tdr-item-body {
        padding: 12px 14px 14px;
    }

    .tdr-view-back a {
        padding: 8px 20px;
        font-size: 14px;
    }
}