/**
 * Nginx 日志分析平台 - 样式表
 * 深色主题设计
 */

:root {
    --bg-primary: #0f0f1a;
    --bg-secondary: #1a1a2e;
    --bg-card: #16213e;
    --bg-hover: #1f3460;
    --text-primary: #e0e0e0;
    --text-secondary: #a0a0a0;
    --text-muted: #666;
    --accent-primary: #4e79a7;
    --accent-secondary: #59a14f;
    --accent-warning: #f28e2b;
    --accent-danger: #e15759;
    --border-color: #2a2a4a;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    --radius: 8px;
    --sidebar-width: 240px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
}

/* 侧边栏 */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    z-index: 100;
}

.logo {
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid var(--border-color);
    color: var(--accent-primary);
    font-size: 18px;
    font-weight: bold;
}

.nav-menu {
    list-style: none;
    padding: 10px 0;
    flex: 1;
    overflow-y: auto;
}

.nav-menu li a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.2s;
    border-left: 3px solid transparent;
}

.nav-menu li a:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.nav-menu li.active a {
    background: var(--bg-hover);
    color: var(--accent-primary);
    border-left-color: var(--accent-primary);
}

/* 主内容区 */
.main-content {
    margin-left: var(--sidebar-width);
    flex: 1;
    padding: 20px 30px;
    min-height: 100vh;
}

.top-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
}

.top-bar h1 {
    font-size: 24px;
    font-weight: 600;
}

.system-status {
    display: flex;
    gap: 20px;
}

.status-item {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text-secondary);
    font-size: 13px;
}

/* 卡片 */
.card {
    background: var(--bg-card);
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
    margin-bottom: 20px;
    box-shadow: var(--shadow);
}

.card-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
}

.card-header h3 {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 16px;
    font-weight: 600;
}

.card-body {
    padding: 20px;
}

.card.full-width {
    grid-column: 1 / -1;
}

/* 仪表盘网格 */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 20px;
}

.stat-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 16px;
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: rgba(78, 121, 167, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-primary);
}

.stat-info {
    display: flex;
    flex-direction: column;
}

.stat-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-label {
    font-size: 13px;
    color: var(--text-secondary);
    margin-top: 4px;
}

/* 图表区域 */
.charts-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.chart-card {
    overflow: hidden;
}

.chart-card .card-body {
    padding: 10px;
    display: flex;
    justify-content: center;
}

.chart-card.full-width {
    grid-column: 1 / -1;
}

.chart {
    max-width: 100%;
    height: auto;
}

/* 信息网格 */
.info-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.info-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.info-item .label {
    font-size: 12px;
    color: var(--text-secondary);
}

.info-item .value {
    font-size: 14px;
    color: var(--text-primary);
    font-weight: 500;
}

/* 磁盘使用 */
.disk-usage {
    display: flex;
    align-items: center;
    gap: 30px;
}

.disk-chart {
    flex-shrink: 0;
}

.disk-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.disk-item {
    display: flex;
    justify-content: space-between;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border-color);
}

.disk-item .label {
    color: var(--text-secondary);
}

.disk-item .value {
    font-weight: 600;
}

/* 日志路径 */
.log-paths {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.path-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    background: var(--bg-secondary);
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
}

.path-item.detected {
    border-left: 3px solid var(--accent-secondary);
}

.path-item.empty {
    border-left: 3px solid var(--accent-warning);
}

.path-item.not_found {
    border-left: 3px solid var(--accent-danger);
    opacity: 0.6;
}

.path-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.path-name {
    font-weight: 500;
    font-family: monospace;
}

.path-count {
    font-size: 12px;
    color: var(--text-secondary);
}

.path-files {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.file-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    background: var(--bg-hover);
    border-radius: 4px;
    font-size: 12px;
    color: var(--text-primary);
    text-decoration: none;
}

.file-link:hover {
    background: var(--accent-primary);
}

.file-size {
    color: var(--text-secondary);
    font-size: 11px;
}

.more-files {
    font-size: 12px;
    color: var(--text-muted);
    align-self: center;
}

/* 表格 */
.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th,
.data-table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.data-table th {
    background: var(--bg-secondary);
    font-weight: 600;
    font-size: 13px;
    color: var(--text-secondary);
}

.data-table tr:hover td {
    background: var(--bg-hover);
}

/* 表单 */
.filter-form {
    display: flex;
    align-items: flex-end;
    gap: 16px;
    flex-wrap: wrap;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-size: 13px;
    color: var(--text-secondary);
}

.form-control {
    padding: 10px 14px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 14px;
    min-width: 200px;
}

.form-control:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(78, 121, 167, 0.2);
}

/* 按钮 */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 20px;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-primary {
    background: var(--accent-primary);
    color: white;
}

.btn-primary:hover {
    background: #3d6899;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 12px;
    background: var(--bg-hover);
    color: var(--text-primary);
}

.btn-sm:hover {
    background: var(--accent-primary);
}

/* 警告框 */
.alert {
    padding: 16px 20px;
    border-radius: var(--radius);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.alert-error {
    background: rgba(225, 87, 89, 0.15);
    border: 1px solid var(--accent-danger);
    color: var(--accent-danger);
}

.alert-warning {
    background: rgba(242, 142, 43, 0.15);
    border: 1px solid var(--accent-warning);
    color: var(--accent-warning);
}

/* 图表交互 */
.bar-item:hover,
.pie-slice:hover {
    opacity: 0.8;
    cursor: pointer;
}

/* 响应式 */
@media (max-width: 1200px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .charts-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .sidebar {
        width: 60px;
    }
    .sidebar .logo span,
    .nav-menu li a span {
        display: none;
    }
    .main-content {
        margin-left: 60px;
    }
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
    .stats-grid {
        grid-template-columns: 1fr;
    }
    .info-grid {
        grid-template-columns: 1fr;
    }
    .disk-usage {
        flex-direction: column;
    }
}

/* 滚动条 */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* 动画 */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.card {
    animation: fadeIn 0.3s ease-out;
}

/* 加载动画 */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
}

.loading::after {
    content: '';
    width: 30px;
    height: 30px;
    border: 3px solid var(--border-color);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* 工具提示 */
[title] {
    position: relative;
    cursor: help;
}

/* 图标通用样式 */
svg {
    flex-shrink: 0;
}

/* ===== 移动端菜单切换按钮 ===== */
.mobile-menu-toggle {
    display: none;
    position: fixed;
    top: 12px;
    left: 12px;
    z-index: 200;
    width: 40px;
    height: 40px;
    border-radius: 8px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    cursor: pointer;
    align-items: center;
    justify-content: center;
}

.mobile-menu-toggle:hover {
    background: var(--bg-hover);
}

/* 移动端遮罩层 */
.mobile-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 99;
}

.mobile-overlay.active {
    display: block;
}

/* ===== 平板端响应式 (1024px以下) ===== */
@media (max-width: 1024px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .charts-grid {
        grid-template-columns: 1fr;
    }
    .top-grid {
        grid-template-columns: 1fr;
    }
    .device-grid {
        grid-template-columns: 1fr;
    }
    .security-grid {
        grid-template-columns: 1fr;
    }
    .geo-stats {
        grid-template-columns: 1fr;
    }
}

/* ===== 手机端响应式 (768px以下) ===== */
@media (max-width: 768px) {
    :root {
        --sidebar-width: 0px;
    }
    
    /* 显示菜单切换按钮 */
    .mobile-menu-toggle {
        display: flex;
    }
    
    /* 侧边栏移动端样式 */
    .sidebar {
        position: fixed;
        left: -260px;
        width: 260px;
        height: 100vh;
        transition: left 0.3s ease;
        z-index: 150;
    }
    
    .sidebar.open {
        left: 0;
    }
    
    .sidebar .logo {
        padding: 16px;
        margin-top: 50px;
    }
    
    .nav-menu li a {
        padding: 14px 20px;
        font-size: 14px;
    }
    
    /* 主内容区 */
    .main-content {
        margin-left: 0;
        padding: 70px 16px 20px;
        width: 100%;
    }
    
    /* 顶部栏 */
    .top-bar {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
        padding-bottom: 12px;
        margin-bottom: 16px;
    }
    
    .top-bar h1 {
        font-size: 20px;
    }
    
    .system-status {
        display: flex;
        flex-wrap: wrap;
        gap: 12px;
    }
    
    .status-item {
        font-size: 11px;
    }
    
    /* 卡片 */
    .card {
        margin-bottom: 16px;
    }
    
    .card-header {
        padding: 12px 16px;
    }
    
    .card-header h3 {
        font-size: 14px;
    }
    
    .card-body {
        padding: 16px;
    }
    
    /* 统计卡片网格 */
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
    
    .stat-card {
        padding: 12px;
        gap: 10px;
    }
    
    .stat-icon {
        width: 36px;
        height: 36px;
    }
    
    .stat-value {
        font-size: 18px;
    }
    
    .stat-label {
        font-size: 11px;
    }
    
    /* 概览卡片 */
    .overview-card {
        padding: 12px;
    }
    
    .overview-value {
        font-size: 24px;
    }
    
    .overview-label {
        font-size: 12px;
    }
    
    /* 仪表盘网格 */
    .dashboard-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    /* 信息网格 */
    .info-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    /* 磁盘使用 */
    .disk-usage {
        flex-direction: column;
        align-items: center;
        gap: 16px;
    }
    
    .disk-info {
        width: 100%;
    }
    
    /* 日志路径 */
    .log-paths {
        gap: 10px;
    }
    
    .path-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
        padding: 12px;
    }
    
    .path-files {
        width: 100%;
        display: flex;
        flex-wrap: wrap;
        gap: 6px;
    }
    
    .file-link {
        font-size: 11px;
        padding: 4px 8px;
    }
    
    /* 表格 */
    .data-table {
        display: block;
        overflow-x: auto;
        white-space: nowrap;
        -webkit-overflow-scrolling: touch;
    }
    
    .data-table th,
    .data-table td {
        padding: 10px 12px;
        font-size: 12px;
    }
    
    /* 表单 */
    .filter-form {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
    }
    
    .form-group {
        width: 100%;
    }
    
    .form-control {
        width: 100%;
        min-width: auto;
        padding: 12px;
        font-size: 14px;
    }
    
    /* 按钮 */
    .btn {
        width: 100%;
        justify-content: center;
        padding: 12px 16px;
        font-size: 14px;
    }
    
    .btn-sm {
        width: auto;
        padding: 6px 10px;
        font-size: 11px;
    }
    
    /* 图表容器 */
    .chart {
        width: 100%;
        height: auto;
    }
    
    .chart-container {
        width: 100%;
        height: 300px;
    }
    
    .trend-chart {
        width: 100%;
        height: 300px;
    }
    
    .map-container {
        width: 100%;
        height: 400px;
    }
    
    /* 排名列表 */
    .rank-item {
        gap: 8px;
        padding: 8px 0;
    }
    
    .rank-badge {
        width: 24px;
        height: 24px;
        font-size: 11px;
    }
    
    .rank-bar-container {
        width: 60px;
    }
    
    /* 威胁卡片 */
    .threat-card {
        padding: 12px;
        gap: 10px;
    }
    
    .threat-icon {
        width: 36px;
        height: 36px;
    }
    
    .threat-title {
        font-size: 13px;
    }
    
    /* 指标卡片 */
    .metric-card {
        padding: 16px;
    }
    
    .metric-value {
        font-size: 28px;
    }
}

/* ===== 超小屏幕 (480px以下) ===== */
@media (max-width: 480px) {
    .main-content {
        padding: 60px 12px 16px;
    }
    
    .top-bar h1 {
        font-size: 18px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .stat-card {
        padding: 10px;
        flex-direction: row;
        gap: 12px;
    }
    
    .stat-value {
        font-size: 20px;
    }
    
    .card-header h3 {
        font-size: 13px;
    }
    
    .overview-value {
        font-size: 20px;
    }
    
    .file-link {
        font-size: 10px;
        padding: 3px 6px;
    }
}

/* ===== 横屏手机 ===== */
@media (max-height: 500px) and (orientation: landscape) {
    .sidebar {
        overflow-y: auto;
    }
    
    .nav-menu li a {
        padding: 10px 20px;
    }
    
    .map-container {
        height: 300px;
    }
}

/* ===== 触摸设备优化 ===== */
@media (hover: none) and (pointer: coarse) {
    .btn:hover {
        background: var(--accent-primary);
    }
    
    .nav-menu li a:hover {
        background: transparent;
    }
    
    .nav-menu li a:active {
        background: var(--bg-hover);
    }
    
    .bar-item:hover,
    .pie-slice:hover {
        opacity: 1;
    }
    
    .data-table tr:hover td {
        background: transparent;
    }
    
    .data-table tr:active td {
        background: var(--bg-hover);
    }
}

/* ===== 打印样式 ===== */
@media print {
    .sidebar,
    .mobile-menu-toggle,
    .mobile-overlay {
        display: none !important;
    }
    
    .main-content {
        margin-left: 0 !important;
        padding: 0 !important;
    }
    
    .card {
        break-inside: avoid;
        border: 1px solid #ddd;
    }
    
    body {
        background: #fff;
        color: #000;
    }
}