/* ---------------------------------- */
/* 深色模式增强样式 (Dark Mode Enhancements) */
/* 为网站全局深色模式提供额外的样式支持 */
/* 使用 .dark-theme 类名应用深色主题 */
/* ---------------------------------- */

/* ========== 基础元素适配 ========== */

/* Body 背景色过渡 */
.dark-theme body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
}

/* 侧边栏适配 */
.dark-theme .sidebar {
    background-color: var(--sidebar-bg);
    border-right-color: var(--card-border);
}

.dark-theme .sidebar-nav a:hover,
.dark-theme .sidebar-nav a.active {
    background-color: var(--bg-primary);
    color: var(--theme-primary);
}

/* 主内容区域 */
.dark-theme .main-content {
    background-color: var(--bg-primary);
}

/* 卡片样式适配 */
.dark-theme .category,
.dark-theme .featured-card,
.dark-theme .link-card,
.dark-theme .card,
.dark-theme .content-card {
    background-color: var(--card-bg);
    border-color: var(--card-border);
    box-shadow: 0 4px 12px var(--card-shadow);
}

.dark-theme .category:hover,
.dark-theme .featured-card:hover,
.dark-theme .link-card:hover,
.dark-theme .card:hover {
    box-shadow: 0 8px 24px var(--card-shadow);
}

/* 关于我部分 */
.dark-theme .about-me,
.dark-theme .about-section {
    background-color: var(--bg-secondary);
}

.dark-theme .avatar-container {
    border-color: var(--card-border);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

/* 英雄区 */
.dark-theme .hero h2 {
    color: var(--accent);
}

.dark-theme .hero p {
    color: var(--text-secondary);
}

/* 引用样式 */
.dark-theme blockquote {
    background-color: var(--bg-secondary);
    border-left-color: var(--accent);
    color: var(--text-secondary);
}

/* 标题样式 */
.dark-theme h1,
.dark-theme h2,
.dark-theme h3,
.dark-theme h4,
.dark-theme h5,
.dark-theme h6 {
    color: var(--accent);
}

/* ========== 表格样式适配 ========== */
.dark-theme table {
    border-color: var(--card-border);
}

.dark-theme th,
.dark-theme td {
    border-bottom-color: var(--card-border);
}

.dark-theme th {
    background-color: rgba(50, 50, 50, 0.7);
    color: var(--text-primary);
}

.dark-theme tr:hover {
    background-color: rgba(60, 60, 60, 0.5);
}

/* ========== 代码块样式适配 ========== */
.dark-theme pre {
    background-color: var(--bg-secondary);
    border-color: var(--card-border);
    color: var(--text-primary);
}

.dark-theme code {
    color: var(--text-primary);
    background-color: var(--bg-secondary);
}

.dark-theme pre code {
    background-color: transparent;
}

/* ========== 图片和媒体适配 ========== */
.dark-theme img {
    filter: brightness(0.9);
    opacity: 0.95;
}

.dark-theme .avatar-img {
    filter: brightness(1);
    opacity: 1;
}

/* ========== 表单元素适配 ========== */
.dark-theme input,
.dark-theme textarea,
.dark-theme select {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    border-color: var(--card-border);
}

.dark-theme input:focus,
.dark-theme textarea:focus,
.dark-theme select:focus {
    border-color: var(--accent);
    outline-color: var(--accent);
    background-color: var(--bg-primary);
}

.dark-theme input::placeholder,
.dark-theme textarea::placeholder {
    color: var(--text-secondary);
}

/* ========== 导航栏适配 ========== */
.dark-theme .navbar {
    background-color: var(--header-bg);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    border-bottom-color: var(--card-border);
}

/* ========== 按钮适配 ========== */
.dark-theme button,
.dark-theme .btn {
    background-color: rgba(50, 50, 50, 0.7);
    color: var(--text-primary);
    border-color: var(--card-border);
}

.dark-theme button:hover,
.dark-theme .btn:hover {
    background-color: var(--accent);
    color: white;
    border-color: var(--accent);
}

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

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

.dark-theme .btn-secondary {
    background-color: var(--bg-secondary);
    color: var(--text-secondary);
    border-color: var(--card-border);
}

.dark-theme .btn-secondary:hover {
    background-color: var(--accent);
    color: white;
    border-color: var(--accent);
}

/* ========== 页脚适配 ========== */
.dark-theme .site-footer,
.dark-theme footer {
    background-color: var(--footer-bg);
    border-top-color: var(--card-border);
    color: var(--text-secondary);
}

.dark-theme .footer-link {
    color: var(--text-secondary);
}

.dark-theme .footer-link:hover {
    color: var(--accent);
}

/* ========== 搜索框适配 ========== */
.dark-theme .search-container input[type="text"],
.dark-theme .search-input {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    border-color: var(--card-border);
}

.dark-theme .search-container input[type="text"]:focus,
.dark-theme .search-input:focus {
    border-color: var(--accent);
    background-color: var(--bg-primary);
}

/* ========== 链接适配 ========== */
.dark-theme a {
    color: var(--accent);
}

.dark-theme a:hover {
    color: var(--accent-hover);
}

.dark-theme .sidebar-nav a {
    color: var(--text-secondary);
}

.dark-theme .sidebar-nav a:hover,
.dark-theme .sidebar-nav a.active {
    color: var(--accent);
}

/* ========== 弹窗适配 ========== */
.dark-theme .modal-content,
.dark-theme .modal {
    background-color: var(--card-bg);
    border-color: var(--card-border);
    color: var(--text-primary);
}

.dark-theme .modal-header {
    border-bottom-color: var(--card-border);
}

.dark-theme .modal-footer {
    border-top-color: var(--card-border);
}

.dark-theme .modal-close {
    color: var(--text-secondary);
}

.dark-theme .modal-close:hover {
    color: var(--accent);
}

/* ========== 特殊元素适配 ========== */
.dark-theme .notice,
.dark-theme .alert {
    background-color: rgba(50, 50, 50, 0.7);
    border-color: var(--card-border);
    color: var(--text-primary);
}

.dark-theme .notice-success {
    background-color: rgba(34, 139, 34, 0.2);
    border-color: rgba(34, 139, 34, 0.5);
}

.dark-theme .notice-warning {
    background-color: rgba(255, 165, 0, 0.2);
    border-color: rgba(255, 165, 0, 0.5);
}

.dark-theme .notice-error {
    background-color: rgba(220, 20, 60, 0.2);
    border-color: rgba(220, 20, 60, 0.5);
}

/* ========== 图标适配 ========== */
.dark-theme .icon {
    filter: brightness(0.9);
    opacity: 0.9;
}

.dark-theme .social-icon {
    border-color: var(--card-border);
    color: var(--text-secondary);
}

.dark-theme .social-icon:hover {
    background-color: var(--accent);
    border-color: var(--accent);
    color: white;
}

/* ========== 滚动条适配 ========== */
.dark-theme::-webkit-scrollbar {
    width: 12px;
    height: 12px;
}

.dark-theme::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

.dark-theme::-webkit-scrollbar-thumb {
    background: var(--text-tertiary);
    border-radius: 6px;
}

.dark-theme::-webkit-scrollbar-thumb:hover {
    background: var(--accent);
}

/* ========== 选中文本样式 ========== */
.dark-theme ::selection {
    background-color: var(--accent);
    color: white;
}

.dark-theme ::-moz-selection {
    background-color: var(--accent);
    color: white;
}

/* ========== 进度条适配 ========== */
.dark-theme .progress-bar {
    background-color: var(--accent);
}

.dark-theme .progress-container {
    background-color: transparent;
}

/* ========== 移动端菜单适配 ========== */
.dark-theme .mobile-menu-toggle {
    background-color: var(--bg-secondary);
    border-color: var(--card-border);
    color: var(--text-primary);
}

.dark-theme .mobile-menu-toggle:hover {
    background-color: var(--bg-primary);
}

.dark-theme .mobile-menu-toggle span {
    background-color: var(--text-primary);
}

/* ========== 内容卡片适配 ========== */
.dark-theme .content-card {
    background-color: var(--card-bg);
    border-color: var(--card-border);
}

.dark-theme .content-card-title {
    color: var(--accent);
}

.dark-theme .content-card-meta {
    color: var(--text-secondary);
}

.dark-theme .content-card-description {
    color: var(--text-primary);
}

/* ========== 分类和标签适配 ========== */
.dark-theme .category-item,
.dark-theme .tag {
    background-color: var(--bg-secondary);
    border-color: var(--card-border);
    color: var(--text-secondary);
}

.dark-theme .category-item:hover,
.dark-theme .tag:hover {
    background-color: var(--accent);
    color: white;
    border-color: var(--accent);
}

/* ========== 过渡动画 ========== */
.dark-theme * {
    transition: background-color 0.3s ease,
                color 0.3s ease,
                border-color 0.3s ease,
                box-shadow 0.3s ease;
}