/* ==========================================================================
   1. CSS变量定义
   ========================================================================== */
:root {
    /* 字体系统 */
    --font-family-base: -apple-system, 'Segoe UI', 'SF Pro Text', '微软雅黑', 'Microsoft YaHei UI', 'PingFang SC', Arial, sans-serif;
    --font-family-mono: 'SF Mono', Consolas, 'Liberation Mono', Menlo, Monaco, 'Courier New', monospace;

    /* 主题颜色 */
    --color-primary: #1f2937;
    --color-secondary: #374151;
    --color-border: #e5e7eb;

    /* 功能色 */
    --color-blue: #2563eb;
    --color-green: #059669;
    --color-red: #dc2626;
    --color-yellow: #d2691e;

    /* 背景色 */
    --color-bg-blue: #eff6ff;
    --color-bg-green: #ecfdf5;
    --color-bg-red: #fee2e2;
    --color-bg-base: #f5f7fa;

    /* 阴影 */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.15);
}

/* ==========================================================================
   2. 基础重置
   ========================================================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-family-base);
    color: var(--color-secondary);
    background-color: var(--color-bg-base);
}

/* ==========================================================================
   3. 布局组件
   ========================================================================== */
/* 主容器 */
.app-container {
    display: flex;
    height: 100vh;
}

.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background-color: var(--color-bg-base);
}

/* 侧边栏 */
.sidebar {
    width: 64px;
    background-color: var(--color-primary);
    color: white;
    display: flex;
    flex-direction: column;
    transition: width 0.3s;
}

.sidebar.expanded {
    width: 200px;
}

.sidebar-header {
    padding: 1rem;
    display: flex;
    align-items: center;
}

.sidebar-toggle {
    color: white;
    background: none;
    border: 0;
    cursor: pointer;
    margin-right: 1rem;
}

.sidebar-toggle svg {
    width: 1.5rem;
    height: 1.5rem;
}

/* 导航项 */
.nav-item {
    display: flex;
    align-items: center;
    padding: 0.75rem 1rem;
    color: white;
    text-decoration: none;
}

.nav-item:hover,
.nav-item.active {
    background-color: var(--color-secondary);
}

.nav-item svg {
    width: 1.5rem;
    height: 1.5rem;
    margin-right: 0.75rem;
}

.nav-text {
    transition: opacity 0.3s;
    white-space: nowrap;
    opacity: 0;
    width: 0;
    overflow: hidden;
}

.sidebar.expanded .nav-text {
    opacity: 1;
    width: auto;
}

/* ==========================================================================
   4. 统计卡片
   ========================================================================== */
.header {
    background-color: white;
    box-shadow: var(--shadow-sm);
    z-index: 10;
}

.stats-container {
    display: flex;
    gap: 2rem;
    padding: 1rem;
    background: var(--color-bg-light);
    border-radius: 8px;
    margin-bottom: 1rem;
}

.stat-item {
    flex: 1;
    text-align: center;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin-bottom: 0.5rem;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--color-primary);
}

.stat-card {
    padding: 0.5rem 1.8rem;
    border-radius: 0.5rem;
    text-align: center;
}

.stat-card.blue { background-color: var(--color-bg-blue); }
.stat-card.green { background-color: var(--color-bg-green); }
.stat-card.red { background-color: var(--color-bg-red); }

.stat-value {
    font-size: 2rem;
    font-weight: bold;
    line-height: 1.2;
}

.stat-value.blue { color: var(--color-blue); }
.stat-value.green { color: var(--color-green); }
.stat-value.red { color: var(--color-red); }

.stat-label {
    font-size: 0.875rem;
    color: var(--color-secondary);
}

/* ==========================================================================
   5. 表格组件
   ========================================================================== */
.table-wrapper {
    padding: 20px;
    width: 100%;
    display: block;
    margin-bottom: 12px;
    overflow-x: auto;
    background-color: var(--color-bg-base);
}

.table-container {
    width: 1740px;
    margin: 0 auto;
}

.data-table {
    width: 1720px;
    border-collapse: collapse;
}

/* 表格单元格基础样式 */
.data-table th,
.data-table td {
    border: 1px solid var(--color-border);
    padding: 8px;
    text-align: center;
    background-color: white;
    font-size: 0.875rem;
}

.data-table th {
    background-color: #f8fafc;
    font-weight: 600;
}

/* 图片单元格 */
.cell-img {
    padding: 0;
    line-height: 0;
    font-size: 0;
    cursor: pointer;
    transition: background-color 0.2s;
}

.cell-img:hover {
    background-color: #f3f4f6;
}

/* ==========================================================================
   6. 交互组件
   ========================================================================== */
/* 按钮基础样式 */
.btn {
    padding: 0.5rem 1rem;
    border-radius: 0.25rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: white;
    border: 0;
    cursor: pointer;
    transition: background-color 0.2s;
    margin-right: 0.5rem;
}

.btn:last-child {
    margin-right: 0;
}

/* 按钮变体 */
.btn-yellow { background-color: var(--color-yellow); }
.btn-blue { background-color: var(--color-blue); }
.btn-green { background-color: var(--color-green); }
.btn-red { background-color: var(--color-red); }

.btn-yellow:hover { background-color: #bc5e1b; }
.btn-blue:hover { background-color: #0069d9; }
.btn-green:hover { background-color: #218838; }
.btn-red:hover { background-color: #d1443a; }

.btn-disable {
    background-color: #999;
    opacity: 0.65;
    cursor: not-allowed;
}

/* 状态标签 */
.status-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 500;
    display: inline-block;
    letter-spacing: 0.025em;
}

.status-badge.online {
    background-color: var(--color-bg-green);
    color: var(--color-green);
}

.status-badge.offline {
    background-color: var(--color-bg-red);
    color: var(--color-red);
}

/* ==========================================================================
   7. 工具类
   ========================================================================== */
/* 复制功能 */
.copy {
    cursor: pointer;
    font-weight: 500;
}
.copy:hover {
    background-color: #f3f4f6;
}

.copy-tooltip {
    position: fixed;
    z-index: 9999;
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 6px 12px;
    border-radius: 4px;
    font-size: 14px;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.2s;
}

.copy-tooltip.visible {
    opacity: 1;
}

/* 国旗图标 */
.country-flag {
    width: 48px;
    vertical-align: middle;
    box-shadow: var(--shadow-sm);
}

/* 表格列宽度 */
.w-id { width: 50px; min-width: 50px; }
.w-name { width: 160px; min-width: 160px; }
.w-number { width: 240px; min-width: 240px; }
.w-60 { width: 60px; min-width: 60px; }
.w-80 { width: 80px; min-width: 80px; }
.w-90 { width: 90px; min-width: 90px; }
.w-card { width: 280px; min-width: 280px; }
.w-code { width: 160px; min-width: 160px; }

/* ==========================================================================
   8. 响应式设计
   ========================================================================== */
@media (max-width: 1200px) {
    .table-container {
        width: 100%;
    }

    .data-table.mobile-view {
        width: 100%;
        min-width: unset;
    }

    .data-table.mobile-view thead {
        display: none;
    }

    .data-table.mobile-view tbody {
        display: block;
        background-color: var(--color-border);
    }

    .data-table.mobile-view tr {
        display: block;
        width: 100%;
        background-color: white;
        margin-bottom: 1.5rem;
        box-shadow: var(--shadow-md);
    }

    .data-table.mobile-view td {
        display: flex;
        justify-content: flex-start;
        align-items: center;
        padding: .75rem 1rem;
        border: 0;
        border-bottom: 1px solid var(--color-border);
        min-height: 3.5rem;
    }

    .data-table.mobile-view td:before {
        content: attr(data-th);
        font-family: var(--font-family-base);
        font-weight: 600;
        font-size: .75rem;
        text-transform: uppercase;
        letter-spacing: .05em;
        color: var(--color-secondary);
        width: 25%;
        min-width: 90px;
        max-width: 120px;
        text-align: left;
        padding-right: 0.5rem;
        flex-shrink: 0;
    }

    .data-table.mobile-view td:last-child {
        border-bottom: 0;
    }

    .data-table.mobile-view td[data-label]:before {
        content: attr(data-label);
        font-family: var(--font-family-base);
        font-weight: 600;
        font-size: .75rem;
        text-transform: uppercase;
        letter-spacing: .05em;
        color: var(--color-secondary);
        width: 25%;
        min-width: 90px;
        max-width: 120px;
        text-align: left;
        padding-right: 0.5rem;
        flex-shrink: 0;
    }

    .data-table.mobile-view td[data-label]>*:not(:before) {
        flex: 1;
        text-align: left;
        margin-left: 0.25rem;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
        min-width: 0;
        word-break: break-all;
    }

    .data-table.mobile-view .btn {
        padding: .5rem .75rem;
        font-size: .75rem;
        white-space: nowrap;
    }

    /* 自定义滚动条 */
    .table-wrapper::-webkit-scrollbar {
        height: 12px;
    }

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

    .table-wrapper::-webkit-scrollbar-thumb {
        background: #888;
        border-radius: 6px;
        border: 2px solid #f1f1f1;
    }

    .table-wrapper::-webkit-scrollbar-thumb:hover {
        background: #666;
    }
}