/* 暗夜主题样式 */

/* 根变量 - 暗色系 */
:root {
    --dark-bg-primary: #0f172a;
    --dark-bg-secondary: #1e293b;
    --dark-bg-tertiary: #334155;
    --dark-text-primary: #f1f5f9;
    --dark-text-secondary: #94a3b8;
    --dark-border-color: #475569;
    --dark-card-bg: #1e293b;
    --dark-hover-bg: #334155;
    --dark-gradient-start: #6366f1;
    --dark-gradient-end: #8b5cf6;
}

/* 全局暗色背景 */
body.dark-mode {
    background-color: var(--dark-bg-primary);
    color: var(--dark-text-primary);
}

/* 导航栏 - 暗色 */
body.dark-mode .navbar {
    background-color: var(--dark-bg-secondary);
    border-bottom: 1px solid var(--dark-border-color);
}

body.dark-mode .navbar-light .navbar-brand,
body.dark-mode .navbar-light .nav-link {
    color: var(--dark-text-primary);
}

body.dark-mode .navbar-light .nav-link:hover,
body.dark-mode .navbar-light .nav-link.active {
    color: var(--dark-gradient-start);
}

/* 容器背景 */
body.dark-mode .container {
    color: var(--dark-text-primary);
}

/* 面包屑 */
body.dark-mode .breadcrumb-item a {
    color: var(--dark-gradient-start);
}

body.dark-mode .breadcrumb-item.active {
    color: var(--dark-text-secondary);
}

/* 页面标题 */
body.dark-mode .page-title {
    color: var(--dark-text-primary);
}

body.dark-mode .page-title i {
    color: var(--dark-gradient-start);
}

/* 分类标题 */
body.dark-mode .category-title {
    color: var(--dark-text-primary);
}

/* 技能卡片 - 暗色 */
body.dark-mode .skill-card {
    background-color: var(--dark-card-bg);
    border-color: var(--dark-border-color);
}

body.dark-mode .skill-card:hover {
    background-color: var(--dark-hover-bg);
    border-color: var(--dark-gradient-start);
    box-shadow: 0 8px 20px rgba(99, 102, 241, 0.2);
}

body.dark-mode .skill-name {
    color: var(--dark-text-primary);
}

body.dark-mode .skill-description {
    color: var(--dark-text-secondary);
}

body.dark-mode .skill-card-footer {
    background-color: var(--dark-bg-tertiary);
    border-top-color: var(--dark-border-color);
}

/* 技能卡片安装按钮 - 暗色 */
body.dark-mode .install-btn {
    background: var(--dark-bg-secondary);
    border-color: var(--dark-border-color);
    color: #a5b4fc;
}

body.dark-mode .install-btn:hover {
    background: linear-gradient(135deg, #1e3a8a 0%, #312e81 100%);
    border-color: var(--dark-gradient-start);
    color: #a5b4fc;
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.2);
}

/* 统计容器 - 暗色 */
body.dark-mode .stats-container {
    background-color: var(--dark-bg-secondary);
    border-color: var(--dark-border-color);
}

body.dark-mode .stat-item,
body.dark-mode .stat-card {
    background-color: var(--dark-bg-tertiary);
    border-color: var(--dark-border-color);
}

body.dark-mode .stat-item:hover,
body.dark-mode .stat-card:hover {
    background-color: var(--dark-hover-bg);
    border-color: var(--dark-gradient-start);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.15);
}

body.dark-mode .stat-value {
    color: var(--dark-text-primary);
}

body.dark-mode .stat-label {
    color: var(--dark-text-secondary);
}

/* 技能图标 */
body.dark-mode .skill-icon {
    background: linear-gradient(135deg, var(--dark-gradient-start) 0%, var(--dark-gradient-end) 100%);
}

body.dark-mode .skill-icon-large {
    background: linear-gradient(135deg, var(--dark-gradient-start) 0%, var(--dark-gradient-end) 100%);
}

/* 技能标题区域 */
body.dark-mode .skill-header {
    border-bottom-color: var(--dark-border-color);
}

body.dark-mode .skill-title {
    color: var(--dark-text-primary);
}

/* 卡片 - 暗色 */
body.dark-mode .card {
    background-color: var(--dark-card-bg);
    border-color: var(--dark-border-color);
}

body.dark-mode .card-header {
    background-color: var(--dark-bg-secondary);
    border-bottom-color: var(--dark-border-color);
    color: var(--dark-text-primary);
}

body.dark-mode .card-body {
    color: var(--dark-text-secondary);
}

body.dark-mode .card-body h5,
body.dark-mode .card-body .skill-description {
    color: var(--dark-text-primary);
}

/* 安装卡片 - 暗色 */
body.dark-mode .install-card {
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

body.dark-mode .install-card .card-header {
    background: linear-gradient(135deg, #1e3a8a 0%, #312e81 100%);
}

body.dark-mode .install-card .card-header h5 {
    color: #a5b4fc;
}

body.dark-mode .install-command {
    background-color: var(--dark-bg-tertiary);
    border-color: var(--dark-border-color);
}

body.dark-mode .install-command code {
    color: #a5b4fc;
}

body.dark-mode .install-command .copy-btn {
    background: var(--dark-bg-secondary);
    border-color: var(--dark-border-color);
    color: var(--dark-gradient-start);
}

body.dark-mode .install-command .copy-btn:hover {
    background: var(--dark-gradient-start);
    border-color: var(--dark-gradient-start);
    color: white;
}

body.dark-mode .form-label {
    color: var(--dark-text-primary);
}

/* 信息项 - 暗色 */
body.dark-mode .info-item {
    border-bottom-color: var(--dark-border-color);
}

body.dark-mode .info-item strong {
    color: var(--dark-text-primary);
}

body.dark-mode .info-item span {
    color: var(--dark-text-secondary);
}

/* 相关技能 - 暗色 */
body.dark-mode .related-skill-item {
    background-color: var(--dark-bg-tertiary);
    border-color: var(--dark-border-color);
}

body.dark-mode .related-skill-item:hover {
    background-color: var(--dark-hover-bg);
    border-color: var(--dark-gradient-start);
}

body.dark-mode .related-skill-name {
    color: var(--dark-text-primary);
}

body.dark-mode .related-skill-meta {
    color: var(--dark-text-secondary);
}

/* 面包屑导航 - 暗色 */
body.dark-mode .custom-breadcrumb .breadcrumb-item a {
    color: var(--dark-text-secondary);
}

body.dark-mode .custom-breadcrumb .breadcrumb-item a:hover {
    color: var(--dark-gradient-start);
    background: var(--dark-bg-tertiary);
}

body.dark-mode .custom-breadcrumb .breadcrumb-item a i {
    color: var(--dark-text-secondary);
}

body.dark-mode .custom-breadcrumb .breadcrumb-item a:hover i {
    color: var(--dark-gradient-start);
}

body.dark-mode .custom-breadcrumb .breadcrumb-item.active {
    color: var(--dark-text-primary);
}

body.dark-mode .custom-breadcrumb .breadcrumb-item + .breadcrumb-item::before {
    color: var(--dark-border-color);
}

/* 表单元素 - 暗色 */
body.dark-mode .form-control {
    background-color: var(--dark-bg-tertiary);
    border-color: var(--dark-border-color);
    color: var(--dark-text-primary);
}

body.dark-mode .form-control:focus {
    background-color: var(--dark-bg-tertiary);
    border-color: var(--dark-gradient-start);
    color: var(--dark-text-primary);
    box-shadow: 0 0 0 0.2rem rgba(99, 102, 241, 0.25);
}

body.dark-mode .form-select {
    background-color: var(--dark-bg-tertiary);
    border-color: var(--dark-border-color);
    color: var(--dark-text-primary);
}

body.dark-mode .form-select:focus {
    background-color: var(--dark-bg-tertiary);
    border-color: var(--dark-gradient-start);
    color: var(--dark-text-primary);
}

/* 搜索框 - 暗色 */
body.dark-mode #searchInput,
body.dark-mode #categorySearchInput {
    background-color: var(--dark-bg-tertiary);
    border-color: var(--dark-border-color);
    color: var(--dark-text-primary);
}

body.dark-mode #searchInput:focus,
body.dark-mode #categorySearchInput:focus {
    border-color: var(--dark-gradient-start);
    box-shadow: 0 0 0 0.2rem rgba(99, 102, 241, 0.25);
}

body.dark-mode #searchBtn,
body.dark-mode #categorySearchBtn {
    background: linear-gradient(135deg, #1e3a8a 0%, #312e81 100%);
}

body.dark-mode #searchBtn:hover,
body.dark-mode #categorySearchBtn:hover {
    background: linear-gradient(135deg, #2e4a9a 0%, #413891 100%);
}

/* 排序选择框 - 暗色 */
body.dark-mode #sortSelect {
    background-color: var(--dark-bg-tertiary);
    border-color: var(--dark-border-color);
    color: var(--dark-text-primary);
}

body.dark-mode #sortSelect:focus {
    border-color: var(--dark-gradient-start);
    box-shadow: 0 0 0 0.2rem rgba(99, 102, 241, 0.25);
}

/* 搜索和排序容器 - 暗色 */
body.dark-mode .search-sort-container {
    gap: 16px;
}

/* 搜索框 - 暗色 */
body.dark-mode .search-input {
    background: var(--dark-bg-tertiary);
    border-color: var(--dark-border-color);
    color: var(--dark-text-primary);
}

body.dark-mode .search-input:focus {
    border-color: var(--dark-gradient-start);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

body.dark-mode .search-button {
    background: linear-gradient(135deg, #1e3a8a 0%, #312e81 100%);
}

body.dark-mode .search-button:hover {
    background: linear-gradient(135deg, #2e4a9a 0%, #413891 100%);
}

/* 排序选择框 - 暗色 */
body.dark-mode .sort-select {
    background: var(--dark-bg-tertiary);
    border-color: var(--dark-border-color);
    color: var(--dark-text-primary);
}

body.dark-mode .sort-select:focus {
    border-color: var(--dark-gradient-start);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

body.dark-mode .sort-select:hover {
    border-color: var(--dark-border-color);
}

/* 分类统计信息 - 暗色 */
body.dark-mode .category-stats {
    background: linear-gradient(135deg, #1e293b 0%, #1e3a5f 100%);
    border-color: var(--dark-border-color);
}

body.dark-mode .stat-item-stat {
    background: var(--dark-bg-tertiary);
    border-color: var(--dark-border-color);
    color: var(--dark-text-secondary);
}

body.dark-mode .stat-item-stat:hover {
    background: var(--dark-hover-bg);
    border-color: var(--dark-gradient-start);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.2);
}

body.dark-mode .stat-item-stat i {
    color: var(--dark-gradient-start);
}

body.dark-mode .stat-item-stat strong {
    color: var(--dark-text-primary);
}

/* 按钮 - 暗色 */
body.dark-mode .btn-outline-primary {
    color: var(--dark-gradient-start);
    border-color: var(--dark-gradient-start);
}

body.dark-mode .btn-outline-primary:hover {
    background-color: var(--dark-gradient-start);
    border-color: var(--dark-gradient-start);
}

body.dark-mode .btn-outline-secondary {
    color: var(--dark-text-secondary);
    border-color: var(--dark-border-color);
}

body.dark-mode .btn-outline-secondary:hover {
    background-color: var(--dark-bg-tertiary);
    border-color: var(--dark-border-color);
    color: var(--dark-text-primary);
}

body.dark-mode .btn-outline-danger {
    color: #f87171;
    border-color: #f87171;
}

body.dark-mode .btn-outline-danger:hover {
    background-color: #f87171;
    border-color: #f87171;
}

/* 安装卡片按钮 - 暗色主题 */
body.dark-mode .btn-install-primary {
    background: var(--dark-bg-tertiary);
    border-color: var(--dark-border-color);
    color: #a5b4fc;
}

body.dark-mode .btn-install-primary:hover {
    background: linear-gradient(135deg, #1e3a8a 0%, #312e81 100%);
    border-color: var(--dark-gradient-start);
    color: #a5b4fc;
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.2);
}

body.dark-mode .btn-install-outline {
    background: var(--dark-bg-tertiary);
    border-color: var(--dark-border-color);
    color: var(--dark-text-primary);
}

body.dark-mode .btn-install-outline:hover {
    border-color: var(--dark-border-color);
    color: var(--dark-text-primary);
    background: var(--dark-hover-bg);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

/* 分页 - 暗色 */
body.dark-mode .page-link {
    background-color: var(--dark-bg-secondary);
    border-color: var(--dark-border-color);
    color: var(--dark-gradient-start);
}

body.dark-mode .page-link:hover {
    background-color: var(--dark-bg-tertiary);
    border-color: var(--dark-border-color);
}

body.dark-mode .page-item.active .page-link {
    background-color: var(--dark-gradient-start);
    border-color: var(--dark-gradient-start);
}

/* 徽章 - 暗色 */
body.dark-mode .badge {
    background-color: var(--dark-bg-tertiary);
    color: var(--dark-text-secondary);
}

/* 分类标签 - 暗色 */
body.dark-mode .category-tabs {
    background: var(--dark-bg-secondary);
    border: 1px solid var(--dark-border-color);
}

body.dark-mode .category-btn {
    background: var(--dark-bg-tertiary);
    border-color: var(--dark-border-color);
    color: var(--dark-text-secondary);
}

body.dark-mode .category-btn:hover {
    border-color: var(--dark-gradient-start);
    color: var(--dark-gradient-start);
    background: var(--dark-hover-bg);
}

body.dark-mode .category-btn.active {
    background: linear-gradient(135deg, #1e3a8a 0%, #312e81 100%);
    border-color: var(--dark-gradient-start);
    color: white;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.4);
}

body.dark-mode .category-btn.active:hover {
    background: linear-gradient(135deg, #2e4a9a 0%, #413891 100%);
}

/* 列表 - 暗色 */
body.dark-mode #skillFeatures li {
    color: var(--dark-text-secondary);
}

body.dark-mode #skillFeatures li:hover {
    color: var(--dark-text-primary);
}

/* 搜索框 */
body.dark-mode .input-group .form-control {
    background-color: var(--dark-bg-tertiary);
    border-color: var(--dark-border-color);
    color: var(--dark-text-primary);
}

/* Toast - 暗色 */
body.dark-mode .toast {
    background-color: var(--dark-card-bg);
    border-color: var(--dark-border-color);
}

body.dark-mode .toast-header {
    background-color: var(--dark-bg-secondary);
    border-bottom-color: var(--dark-border-color);
    color: var(--dark-text-primary);
}

body.dark-mode .toast-body {
    color: var(--dark-text-secondary);
}

/* 页脚 - 暗色 */
body.dark-mode footer {
    background-color: var(--dark-bg-secondary);
    border-top: 1px solid var(--dark-border-color);
}

body.dark-mode footer .text-muted {
    color: var(--dark-text-secondary) !important;
}

/* 图标颜色 */
body.dark-mode .bi {
    color: var(--dark-text-secondary);
}

body.dark-mode .stat-icon {
    color: var(--dark-gradient-start);
}

/* 统计信息颜色 */
body.dark-mode .stat-icon.text-danger {
    color: #f87171 !important;
}

/* 加载更多区域 */
body.dark-mode .text-center.text-muted {
    color: var(--dark-text-secondary) !important;
}

/* 搜索结果为空 */
body.dark-mode .text-muted {
    color: var(--dark-text-secondary) !important;
}

/* 统计条 */
body.dark-mode .stats-bar .badge {
    background-color: var(--dark-bg-tertiary);
    border: 1px solid var(--dark-border-color);
    color: var(--dark-text-secondary);
}

body.dark-mode .badge.bg-info.text-dark {
    background: linear-gradient(135deg, #1e3a8a 0%, #312e81 100%) !important;
    color: white !important;
    border: none;
}

body.dark-mode .badge.bg-success {
    background-color: #059669 !important;
    border: none;
}

/* 主题切换按钮样式 */
.theme-toggle {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--dark-gradient-start), var(--dark-gradient-end));
    border: none;
    color: white;
    font-size: 24px;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
    transition: all 0.3s ease;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-toggle:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.5);
}

body.dark-mode .theme-toggle {
    background: linear-gradient(135deg, #f59e0b, #fbbf24);
}

/* 技能卡片悬停效果 - 暗色 */
body.dark-mode .skill-card::before {
    background: linear-gradient(90deg, var(--skill-color-start, #6366f1), var(--skill-color-end, #8b5cf6));
}

/* 滚动条 - 暗色 */
body.dark-mode ::-webkit-scrollbar {
    width: 8px;
}

body.dark-mode ::-webkit-scrollbar-track {
    background: var(--dark-bg-primary);
}

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

body.dark-mode ::-webkit-scrollbar-thumb:hover {
    background: var(--dark-gradient-start);
}

/* 动画过渡 */
body.dark-mode .skill-card,
body.dark-mode .stat-item,
body.dark-mode .card {
    transition: all 0.3s ease;
}

/* 响应式优化 */
@media (max-width: 768px) {
    .theme-toggle {
        width: 45px;
        height: 45px;
        bottom: 20px;
        right: 20px;
        font-size: 20px;
    }
}

/* ═══════════════════════════════════════════════════
   首页专属暗色适配
═══════════════════════════════════════════════════ */

/* Hero 区域 —— 暗色下加深背景，保持渐变整体协调 */
body.dark-mode .hero-section {
    background: linear-gradient(135deg, #1e1b4b 0%, #312e81 55%, #4c1d95 100%);
}

/* Hero 搜索框 */
body.dark-mode .hero-search-box {
    background: var(--dark-bg-secondary);
    box-shadow: 0 8px 32px rgba(0,0,0,0.5);
}
body.dark-mode .hero-search-input {
    background: transparent;
    color: var(--dark-text-primary);
}
body.dark-mode .hero-search-input::placeholder {
    color: var(--dark-text-secondary);
}
body.dark-mode .hero-search-icon {
    color: var(--dark-text-secondary);
}
body.dark-mode .hero-search-btn {
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
}
body.dark-mode .hero-search-btn:hover {
    background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
}

/* Hero 预览卡片 */
body.dark-mode .hero-preview-card {
    background: rgba(255,255,255,0.08);
    border-color: rgba(255,255,255,0.15);
}
body.dark-mode .hero-preview-card:hover {
    background: rgba(255,255,255,0.14);
}

/* Hero 统计栏 */
body.dark-mode .hero-stats {
    background: rgba(255,255,255,0.07);
    border-color: rgba(255,255,255,0.15);
}

/* Section Header */
body.dark-mode .section-header {
    border-bottom-color: var(--dark-border-color);
}
body.dark-mode .section-title {
    color: var(--dark-text-primary);
}
body.dark-mode .section-more {
    color: var(--dark-gradient-start);
}
body.dark-mode .section-more:hover {
    color: #a5b4fc;
}

/* 分类卡片 */
body.dark-mode .category-card {
    background: var(--dark-card-bg);
    border-color: var(--dark-border-color);
    color: var(--dark-text-primary);
}
body.dark-mode .category-card:hover {
    background: var(--dark-hover-bg);
    border-color: var(--dark-gradient-start);
    box-shadow: 0 12px 28px rgba(99,102,241,0.2);
    color: var(--dark-text-primary);
}
body.dark-mode .category-card-name {
    color: var(--dark-text-primary);
}
body.dark-mode .category-card-count {
    color: var(--dark-text-secondary);
}