/**
 * Table Widget统一样式文件
 * 合并所有模块化CSS，消除重复，优化性能
 * 版本: 2.0
 */

/* ================== CSS变量统一定义 ================== */
:root {
    --focus-color: #0073aa;
    --border-color: #e1e1e1;
    --border-color-dark: #3c434a;
    --bg-primary: #fff;
    --bg-secondary: #f8f9fa;
    --bg-tertiary: #f0f0f1;
    --text-primary: #1d2327;
    --text-secondary: #646970;
    --text-muted: #757575;
    --hover-bg: #f8f9fa;
    --font-size-base: 12px;
    --font-size-large: 14px;
    --border-radius: 6px;
    --border-radius-small: 4px;
    --spacing-xs: 6px;
    --spacing-sm: 10px;
    --spacing-md: 16px;
    --spacing-lg: 20px;
    --spacing-xl: 32px;
    --shadow-light: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow-focus: 0 0 0 3px color-mix(in srgb, var(--focus-color) 10%, transparent);
}

/* ================== Widget容器基础样式 ================== */
.sammi-content-index-table-container {
    width: 100%;
    margin: 20px 0;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-light);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* 清除主题干扰 */
.sammi-content-index-table-container *,
.sammi-content-index-table-container *::before,
.sammi-content-index-table-container *::after {
    box-sizing: border-box;
}

.sammi-content-index-table-container button,
.sammi-content-index-table-container input {
    font-family: inherit;
}

/* ================== 工具栏统一样式 ================== */
.sammi-table-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    flex-wrap: wrap;
    gap: 12px;
}

.sammi-table-search {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex: 1;
    min-width: 280px;
    position: relative;
}

.sammi-table-search-input {
    flex: 1;
    max-width: 320px;
    padding: 12px 45px 12px var(--spacing-md);
    border: 1px solid #c3c4c7;
    border-radius: var(--border-radius-small);
    font-size: var(--font-size-large);
    line-height: 1.4;
    background: var(--bg-primary);
    color: var(--text-primary);
    box-sizing: border-box;
    transition: all 0.15s ease-in-out;
}

.sammi-table-search-input:focus {
    outline: none;
    border-color: var(--focus-color);
    box-shadow: 0 0 0 1px var(--focus-color);
}

.sammi-table-search-input::placeholder {
    color: var(--text-muted);
    font-style: normal;
}

.sammi-table-search-input.searching {
    border-color: var(--focus-color);
}

.sammi-table-search-clear {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    padding: var(--spacing-xs);
    cursor: pointer;
    color: var(--text-muted);
    border-radius: var(--border-radius-small);
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s ease-in-out;
}

.sammi-table-search-clear:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.sammi-table-search-clear .dashicons {
    font-size: 16px;
    width: 16px;
    height: 16px;
}

.sammi-table-export {
    display: flex;
    gap: var(--spacing-sm);
}

/* ================== 按钮统一样式 ================== */
.sammi-table-search-btn,
.sammi-table-clear-btn,
.sammi-table-export-btn {
    padding: 12px var(--spacing-lg);
    background: var(--focus-color);
    color: #fff;
    border: 1px solid var(--focus-color);
    border-radius: var(--border-radius-small);
    cursor: pointer;
    font-size: var(--font-size-large);
    font-weight: 500;
    text-decoration: none;
    transition: all 0.15s ease-in-out;
    white-space: nowrap;
    line-height: 1.4;
}

.sammi-table-search-btn:hover,
.sammi-table-export-btn:hover {
    background: #135e96;
    border-color: #135e96;
}

.sammi-table-clear-btn {
    background: #50575e;
    border-color: #50575e;
}

.sammi-table-clear-btn:hover {
    background: #3c434a;
    border-color: #3c434a;
}

.sammi-table-search-btn:disabled,
.sammi-table-export-btn:disabled,
.sammi-table-clear-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* ================== 统一焦点样式 ================== */
.sammi-content-index-table-container button:focus,
.sammi-content-index-table-container input:focus,
.sammi-table-search-btn:focus,
.sammi-table-export-btn:focus,
.sammi-table-clear-btn:focus,
.sammi-table-search-clear:focus,
.retry-btn:focus {
    outline: 2px solid var(--focus-color);
    outline-offset: 2px;
}

/* ================== 表格容器样式 ================== */
.sammi-table-wrapper {
    background: var(--bg-primary);
    overflow-x: auto;
    overflow-y: auto;
    width: 100%;
    scroll-behavior: smooth;
    position: relative;
}

/* 滚动条样式优化 */
.sammi-table-wrapper::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

.sammi-table-wrapper::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 4px;
}

.sammi-table-wrapper::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 4px;
}

.sammi-table-wrapper::-webkit-scrollbar-thumb:hover {
    background: #a8a8a8;
}

.sammi-table-wrapper::-webkit-scrollbar-corner {
    background: #f1f1f1;
}

.sammi-content-table,
.sammi-horizontal-table {
    border-collapse: collapse;
    background: var(--bg-primary);
    font-size: var(--font-size-base);
    table-layout: auto;
    width: max-content;
}

/* ================== 表头样式 ================== */
.sammi-content-table thead,
.sammi-horizontal-table thead {
    background: var(--bg-secondary);
    border-bottom: 2px solid #dee2e6;
}

.sammi-content-table th,
.sammi-horizontal-table th {
    padding: 8px var(--spacing-xs);
    text-align: left;
    font-weight: 600;
    color: #495057;
    border-right: 1px solid #dee2e6;
    position: relative;
    user-select: none;
}

.sammi-content-table th:last-child {
    border-right: none;
}

.sammi-content-table th.sortable {
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.sammi-content-table th.sortable:hover {
    background: #e9ecef;
}

.sammi-content-table .sort-indicator {
    display: inline-block;
    margin-left: 8px;
    width: 0;
    height: 0;
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
    opacity: 0.3;
}

.sammi-content-table .sort-indicator.desc {
    border-top: 6px solid #495057;
    opacity: 1;
}

.sammi-content-table .sort-indicator.asc {
    border-bottom: 6px solid #495057;
    opacity: 1;
}

/* ================== 表格行和单元格样式 ================== */
.sammi-content-table tbody tr,
.sammi-horizontal-table tbody tr {
    border-bottom: 1px solid #f1f1f1;
    transition: background-color 0.2s ease;
}

.sammi-content-table tbody tr:hover,
.sammi-horizontal-table tbody tr:hover {
    background: var(--hover-bg);
}

.sammi-content-table tbody tr:last-child,
.sammi-horizontal-table tbody tr:last-child {
    border-bottom: none;
}

.sammi-content-table td,
.sammi-horizontal-table td {
    padding: var(--spacing-xs) !important;
    vertical-align: top;
    border-right: 1px solid #f1f1f1;
    line-height: 1.5;
    font-size: var(--font-size-base) !important;
}

.sammi-content-table td:last-child,
.sammi-horizontal-table td:last-child {
    border-right: none;
}

/* ================== 表格内容特定样式 ================== */
.primary-category-cell {
    font-weight: 600;
}

.secondary-category-cell,
.secondary-category-header {
    font-weight: 500;
    width: 80px !important;
    min-width: 80px !important;
    max-width: 80px !important;
}

.post-title-cell,
.post-title-header {
    width: 300px !important;
    min-width: 300px !important;
    max-width: 300px !important;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.top-badge {
    display: inline-block;
    background: #d63638;
    color: white;
    padding: 2px 8px;
    border-radius: 12px;
    font-size: var(--font-size-base);
    font-weight: 600;
    text-transform: uppercase;
    margin-right: 8px;
    vertical-align: top;
}

.title-text {
    word-break: break-word;
    line-height: 1.4;
}

.post-link-cell,
.post-link-header {
    text-align: left;
    width: 60px !important;
    min-width: 60px !important;
    max-width: 60px !important;
    overflow: hidden;
    white-space: nowrap;
}

.post-link-cell a {
    color: var(--focus-color);
    text-decoration: underline;
}

.created-time-cell {
    width: 140px !important;
    min-width: 140px !important;
    max-width: 140px !important;
    color: #6c757d;
    font-size: var(--font-size-base);
}

.date-value {
    white-space: nowrap;
}

.no-data-cell {
    text-align: center;
    padding: 40px var(--spacing-lg);
    color: #6c757d;
    font-style: italic;
    background: var(--bg-secondary);
}

/* ================== 横向表格专用样式 ================== */
.primary-category-header {
    background: #e9ecef !important;
    font-weight: 700;
    text-align: center;
    font-size: 24px;
    padding: var(--spacing-lg) 12px;
}

.secondary-category-header,
.post-title-header,
.post-link-header {
    background: var(--bg-secondary);
    font-weight: 600;
    text-align: center;
    font-size: var(--font-size-base);
    color: #495057;
    border-bottom: 2px solid #dee2e6;
    padding: 12px 8px;
}

.empty-cell {
    border: 1px solid #f1f1f1;
}

.sammi-horizontal-table td {
    padding: var(--spacing-xs) !important;
    vertical-align: middle;
    font-size: var(--font-size-base) !important;
}

.category-spacer-header,
.category-spacer-subheader,
.category-spacer-cell {
    width: 60px !important;
    min-width: 60px !important;
    max-width: 60px !important;
    padding: 0;
    background: var(--bg-secondary);
    border-color: #dee2e6;
}

/* ================== 加载和错误状态 ================== */
.sammi-table-loading,
.sammi-table-error {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px var(--spacing-lg);
    text-align: center;
    background: var(--bg-primary);
    min-height: 200px;
}

.sammi-table-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid var(--focus-color);
    border-radius: 50%;
    animation: sammi-table-spin 1s linear infinite;
    margin-bottom: var(--spacing-md);
}

@keyframes sammi-table-spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.sammi-table-loading p,
.sammi-table-error p {
    margin: 0;
    color: #666;
    font-size: var(--font-size-base);
}

.sammi-table-error {
    color: #d63638;
}

.sammi-table-error .error-message {
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-md);
    font-weight: 500;
}

.sammi-table-error .retry-btn {
    padding: 12px var(--spacing-lg);
    background: var(--focus-color);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: var(--font-size-base);
    font-weight: 500;
    transition: background-color 0.2s ease;
}

.sammi-table-error .retry-btn:hover {
    background: #005a87;
}

/* ================== 无搜索结果样式 ================== */
.sammi-no-search-results td {
    background: #f9f9f9;
    border: 1px solid #dcdcde;
    padding: 48px var(--spacing-xl);
}

.sammi-no-data-message {
    text-align: center;
    color: var(--text-secondary);
}

.sammi-no-data-message p {
    margin: 0 0 12px 0;
    font-size: 15px;
    line-height: 1.5;
}

.sammi-no-data-message .search-term {
    font-size: 13px;
    color: #8c8f94;
    font-style: normal;
    font-weight: 500;
}

/* ================== 无限滚动加载更多指示器 ================== */
.sammi-table-load-more {
    padding: var(--spacing-lg);
    text-align: center;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
}

.load-more-spinner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.load-more-spinner .sammi-table-spinner {
    margin-bottom: 0;
}

.load-more-spinner p {
    margin: 0;
    color: #6c757d;
    font-size: var(--font-size-base);
}

.load-more-end {
    padding: var(--spacing-md);
    color: #6c757d;
    font-style: italic;
}

.load-more-end p {
    margin: 0;
    font-size: var(--font-size-base);
}

/* ================== WordPress主题兼容性 ================== */
.widget .sammi-content-index-table-container,
.sidebar .sammi-content-index-table-container {
    width: 100%;
    max-width: none;
}

.wp-admin .sammi-content-index-table-container {
    border-color: #c3c4c7;
    box-shadow: 0 1px 1px rgba(0, 0, 0, 0.04);
}

.wp-admin .sammi-table-toolbar {
    background: #f6f7f7;
    border-color: #c3c4c7;
}

/* Twenty系列主题兼容 */
.theme-twentytwentyone .sammi-content-index-table-container,
.theme-twentytwentytwo .sammi-content-index-table-container,
.theme-twentytwentythree .sammi-content-index-table-container {
    font-family: inherit;
}

/* Astra主题兼容 */
.ast-theme .sammi-content-index-table-container {
    line-height: normal;
}

/* GeneratePress主题兼容 */
.generate-theme .sammi-content-index-table-container {
    box-sizing: border-box;
}

/* OceanWP主题兼容 */
.oceanwp-theme .sammi-content-index-table-container {
    width: 100%;
    overflow: visible;
}

/* ================== 响应式设计 ================== */
@media (max-width: 768px) {
    .sammi-table-toolbar {
        flex-direction: column;
        align-items: stretch;
        gap: var(--spacing-md);
        padding: var(--spacing-md) 0;
        margin-bottom: var(--spacing-lg);
    }
    
    .sammi-table-toolbar .sammi-table-search {
        min-width: unset;
        max-width: unset;
        order: 1;
    }
    
    .sammi-table-toolbar .sammi-table-export {
        order: 2;
        align-self: flex-start;
    }
    
    .sammi-table-search-input {
        padding: 14px 45px 14px var(--spacing-md);
        font-size: 16px; /* 防止iOS自动缩放 */
    }
    
    .sammi-table-export-btn {
        padding: 14px 24px;
        font-size: 16px;
    }
}

@media (max-width: 480px) {
    .sammi-table-toolbar {
        padding: 12px 0;
        margin-bottom: var(--spacing-md);
        gap: 12px;
    }
    
    .sammi-no-search-results td {
        padding: var(--spacing-xl) var(--spacing-md);
    }
}

/* ================== 深色模式支持 ================== */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-primary: #2c3338;
        --bg-secondary: #23282d;
        --bg-tertiary: #32373c;
        --text-primary: #e4e4e4;
        --text-secondary: #a7aaad;
        --border-color: #3c434a;
        --hover-bg: #32373c;
    }
    
    .sammi-content-index-table-container {
        background: var(--bg-primary);
        border-color: var(--border-color-dark);
    }
    
    .sammi-table-toolbar {
        background: var(--bg-secondary);
        border-color: var(--border-color-dark);
        color: var(--text-primary);
    }
    
    .sammi-table-search-input {
        background: var(--bg-tertiary);
        border-color: var(--border-color-dark);
        color: var(--text-primary);
    }
    
    .sammi-table-search-input:focus {
        border-color: var(--focus-color);
    }
    
    .sammi-content-table,
    .sammi-horizontal-table {
        background: var(--bg-primary);
    }
    
    .sammi-content-table thead,
    .sammi-horizontal-table thead {
        background: var(--bg-secondary);
        border-color: var(--border-color-dark);
    }
    
    .sammi-content-table th,
    .sammi-horizontal-table th {
        color: var(--text-primary);
        border-color: var(--border-color-dark);
    }
    
    .sammi-content-table th.sortable:hover {
        background: var(--bg-tertiary);
    }
    
    .sammi-content-table tbody tr,
    .sammi-horizontal-table tbody tr {
        border-color: var(--border-color-dark);
    }
    
    .sammi-content-table tbody tr:hover,
    .sammi-horizontal-table tbody tr:hover {
        background: var(--hover-bg);
    }
    
    .sammi-content-table td,
    .sammi-horizontal-table td {
        color: var(--text-primary);
        border-color: var(--border-color-dark);
    }
    
    .primary-category-cell {
        background: #5d2d2d;
        color: #f8d7da;
    }
    
    .no-data-cell {
        background: var(--bg-tertiary);
        color: var(--text-secondary);
    }
    
    /* 横向表格深色模式 */
    .primary-category-header {
        background: #1e2327 !important;
        color: var(--text-primary);
    }
    
    .secondary-category-header,
    .post-title-header,
    .post-link-header {
        background: var(--bg-secondary);
        color: var(--text-primary);
    }
    
    .empty-cell {
        background: var(--bg-primary);
        border-color: var(--border-color-dark);
    }
    
    .category-spacer-header {
        background: var(--bg-primary);
        border-color: var(--border-color-dark);
    }
    
    .category-spacer-subheader {
        background: var(--bg-secondary);
        border-color: var(--bg-tertiary);
    }
    
    .category-spacer-cell {
        background: var(--bg-primary);
        border-color: var(--border-color-dark);
    }
    
    .sammi-horizontal-table tbody tr:hover .category-spacer-cell {
        background: var(--bg-tertiary);
    }
    
    /* 加载和错误状态深色模式 */
    .sammi-table-loading,
    .sammi-table-error {
        background: var(--bg-primary);
        color: var(--text-primary);
    }
    
    .sammi-table-spinner {
        border-color: var(--border-color-dark);
        border-top-color: var(--focus-color);
    }
}

/* ================== 高对比度模式支持 ================== */
@media (prefers-contrast: high) {
    .sammi-content-index-table-container,
    .sammi-table-search-input,
    .sammi-table-search-btn,
    .sammi-table-clear-btn,
    .sammi-table-export-btn,
    .retry-btn {
        border-width: 2px;
    }
    
    .sammi-content-table th,
    .sammi-content-table td,
    .sammi-horizontal-table th,
    .sammi-horizontal-table td {
        border-width: 1px;
    }
    
    .top-badge {
        background: #000;
        color: #fff;
        border: 1px solid #fff;
    }
    
    /* 深色模式下的高对比度 */
    @media (prefers-color-scheme: dark) {
        .sammi-content-index-table-container,
        .sammi-content-table th,
        .sammi-content-table td,
        .sammi-horizontal-table th,
        .sammi-horizontal-table td,
        .sammi-table-search-input,
        .sammi-table-search-btn,
        .sammi-table-export-btn {
            border-color: #fff;
        }
        
        .top-badge {
            background: #fff;
            color: #000;
            border: 1px solid #000;
        }
    }
}

/* ================== 无障碍支持 ================== */
@media (prefers-reduced-motion: reduce) {
    .sammi-content-index-table-container *,
    .sammi-content-index-table-container *::before,
    .sammi-content-index-table-container *::after {
        transition: none !important;
        animation: none !important;
    }
    
    .sammi-table-spinner {
        animation: none;
    }
}

/* 大字体支持 */
@media (min-resolution: 192dpi) {
    .sammi-content-table,
    .sammi-horizontal-table {
        font-size: var(--font-size-large);
    }
    
    .sammi-content-table th,
    .sammi-content-table td,
    .sammi-horizontal-table th,
    .sammi-horizontal-table td {
        padding: 12px var(--spacing-sm);
    }
}

/* ================== RTL语言支持 ================== */
[dir="rtl"] .sammi-content-index-table-container {
    direction: rtl;
}

[dir="rtl"] .sammi-table-toolbar,
[dir="rtl"] .sammi-table-search,
[dir="rtl"] .pagination-controls {
    flex-direction: row-reverse;
}

/* ================== 打印样式 ================== */
@media print {
    .sammi-table-toolbar,
    .sammi-table-pagination {
        display: none !important;
    }
    
    .sammi-content-index-table-container {
        border: none;
        box-shadow: none;
        background: white;
        color: black;
    }
    
    .sammi-content-table,
    .sammi-horizontal-table {
        font-size: 10px;
        background: white;
        color: black;
    }
    
    .sammi-content-table th,
    .sammi-content-table td,
    .sammi-horizontal-table th,
    .sammi-horizontal-table td {
        padding: var(--spacing-xs);
        border: 1px solid #ccc;
        background: white;
        color: black;
        font-size: var(--font-size-base);
    }
    
    .sammi-content-table thead,
    .sammi-horizontal-table thead {
        background: #f5f5f5;
    }
    
    .top-badge {
        background: #ccc;
        color: #000;
        border: 1px solid #000;
    }
}