/* ============================================
   mdxpress - 玻璃拟态风格样式
   ============================================ */

/* 导入 Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Source+Sans+Pro:wght@300;400;600&family=Fira+Code:wght@400;500&display=swap');

/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    height: 100%;
    font-family: 'Source Sans Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
}

/* 亮色模式背景 */
body {
    background: linear-gradient(135deg, #7ddcca 0%, #6edede 100%);
    background-attachment: fixed;
    color: #2d3748;
    transition: all 0.3s ease;
}

/* 暗色模式背景 */
body.dark-mode {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    color: #e2e8f0;
}

/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s ease;
}

body.dark-mode .navbar {
    background: rgba(15, 23, 42, 0.5);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.navbar-brand {
    font-family: 'Inter', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: #fff;
    text-decoration: none;
    transition: opacity 0.3s;
}

.navbar-brand:hover {
    opacity: 0.8;
}

.navbar-links {
    display: flex;
    gap: 2rem;
    list-style: none;
    align-items: center;
}

.navbar-links a {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: all 0.3s;
    padding: 0.5rem 1rem;
    border-radius: 8px;
}

.navbar-links a:hover {
    background: rgba(255, 255, 255, 0.2);
    color: #fff;
    transform: translateY(-2px);
}

body.dark-mode .navbar-links a {
    color: rgba(255, 255, 255, 0.8);
}

body.dark-mode .navbar-links a:hover {
    background: rgba(255, 255, 255, 0.1);
}

.navbar-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* 主题切换按钮 */
.theme-toggle-btn {
    background: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s;
    font-size: 1.2rem;
    color: #fff;
}

.theme-toggle-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: rotate(180deg);
}

body.dark-mode .theme-toggle-btn {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

/* 移动端汉堡菜单 */
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: #fff;
    border-radius: 2px;
    transition: all 0.3s;
}

/* 主布局容器 */
.main-container {
    margin-top: 80px;
    min-height: calc(100vh - 80px);
    padding: 2rem;
    display: grid;
    grid-template-columns: 260px 1fr 260px;
    gap: 2rem;
    max-width: 1600px;
    margin-left: auto;
    margin-right: auto;
}

/* 玻璃拟态卡片基础样式 */
.glass-card {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 16px;
    padding: 1.5rem;
    transition: all 0.3s ease;
}

body.dark-mode .glass-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* 左侧栏 */
.sidebar-left {
    position: sticky;
    top: 50px;
    height: fit-content;
}

.sidebar-card {
    margin-bottom: 1.5rem;
}

.sidebar-card h3 {
    font-family: 'Inter', sans-serif;
    font-size: 1.1rem;
    font-weight: 600;
    color: #fff;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid rgba(255, 255, 255, 0.3);
}

body.dark-mode .sidebar-card h3 {
    color: #e2e8f0;
}

.sidebar-list {
    list-style: none;
}

.sidebar-list li {
    margin-bottom: 0.5rem;
}

.sidebar-list a {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    padding: 0.5rem;
    display: block;
    border-radius: 8px;
    transition: all 0.3s;
    font-size: 0.9rem;
}

.sidebar-list a:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateX(5px);
}

body.dark-mode .sidebar-list a {
    color: rgba(255, 255, 255, 0.8);
}

body.dark-mode .sidebar-list a:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* 主内容区 */
.main-content {
    max-width: 1000px;
}

.content-card {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 16px;
    padding: 2.5rem;
    margin-bottom: 2rem;
}

body.dark-mode .content-card {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
}

/* 右侧栏 */
.sidebar-right {
    position: sticky;
    top: 50px;
    height: fit-content;
}

/* 标题样式 */
h1 {
    font-family: 'Inter', sans-serif;
    font-size: 2.5rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

h2 {
    font-family: 'Inter', sans-serif;
    font-size: 2rem;
    font-weight: 600;
    color: #fff;
    margin-top: 2rem;
    margin-bottom: 1rem;
}

h3 {
    font-family: 'Inter', sans-serif;
    font-size: 1.5rem;
    font-weight: 600;
    color: #fff;
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
}

body.dark-mode h1,
body.dark-mode h2,
body.dark-mode h3 {
    color: #f1f5f9;
}

/* 段落和文本 */
p {
    font-size: 1rem;
    line-height: 1.8;
    margin-bottom: 1rem;
    color: rgba(255, 255, 255, 0.95);
}

body.dark-mode p {
    color: rgba(255, 255, 255, 0.85);
}

/* 链接样式 */
a {
    color: #fef08a;
    text-decoration: none;
    transition: all 0.3s;
}

a:hover {
    color: #fde047;
    text-decoration: underline;
}

body.dark-mode a {
    color: #93c5fd;
}

body.dark-mode a:hover {
    color: #bfdbfe;
}

/* 列表样式 */
ul, ol {
    margin-left: 2rem;
    margin-bottom: 1rem;
}

li {
    margin-bottom: 0.5rem;
    color: rgba(255, 255, 255, 0.95);
}

body.dark-mode li {
    color: rgba(255, 255, 255, 0.85);
}

/* 代码块样式 */
pre {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    padding: 1rem;
    overflow-x: auto;
    margin: 1rem 0;
}

code {
    font-family: 'Fira Code', 'Courier New', monospace;
    font-size: 0.9rem;
    color: #fef08a;
}

pre code {
    color: #e2e8f0;
}

body.dark-mode pre {
    background: rgba(0, 0, 0, 0.5);
}

/* 引用块样式 */
blockquote {
    border-left: 4px solid rgba(255, 255, 255, 0.5);
    padding-left: 1.5rem;
    margin: 1.5rem 0;
    font-style: italic;
    color: rgba(255, 255, 255, 0.9);
}

body.dark-mode blockquote {
    border-left-color: rgba(255, 255, 255, 0.3);
    color: rgba(255, 255, 255, 0.8);
}

/* 表格样式 */
table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    overflow: hidden;
}

th, td {
    padding: 0.75rem 1rem;
    text-align: left;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

th {
    background: rgba(255, 255, 255, 0.2);
    font-weight: 600;
    color: #fff;
}

body.dark-mode table {
    background: rgba(255, 255, 255, 0.05);
}

body.dark-mode th {
    background: rgba(255, 255, 255, 0.1);
}

/* 图片样式 */
img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: 1rem 0;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
    color: #fff;
    text-decoration: none;
}

body.dark-mode .btn {
    background: linear-gradient(135deg, #4c51bf 0%, #667eea 100%);
}

/* 文章卡片（博客列表） */
.article-card {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    transition: all 0.3s;
}

.article-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
    background: rgba(255, 255, 255, 0.2);
}

body.dark-mode .article-card {
    background: rgba(255, 255, 255, 0.05);
}

body.dark-mode .article-card:hover {
    background: rgba(255, 255, 255, 0.1);
}

.article-card h2 {
    margin-top: 0;
    font-size: 1.5rem;
}

.article-card h2 a {
    color: #fff;
    text-decoration: none;
}

.article-card h2 a:hover {
    color: #fef08a;
}

.article-meta {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 0.5rem;
}

.article-excerpt {
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.6;
}

body.dark-mode .article-meta {
    color: rgba(255, 255, 255, 0.6);
}

body.dark-mode .article-excerpt {
    color: rgba(255, 255, 255, 0.8);
}

/* 页脚 */
footer {
    text-align: center;
    padding: 2rem;
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    margin-top: 2rem;
}

body.dark-mode footer {
    background: rgba(15, 23, 42, 0.5);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* 表单样式 */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: #fff;
}

body.dark-mode .form-group label {
    color: #e2e8f0;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 8px;
    color: #fff;
    font-family: inherit;
    font-size: 1rem;
    transition: all 0.3s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: rgba(255, 255, 255, 0.6);
    background: rgba(255, 255, 255, 0.15);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

body.dark-mode .form-group input,
body.dark-mode .form-group textarea {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.2);
}

/* 标签云 */
.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 20px;
    font-size: 0.85rem;
    color: #fff;
    transition: all 0.3s;
}

.tag:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.05);
}

body.dark-mode .tag {
    background: rgba(255, 255, 255, 0.1);
}

body.dark-mode .tag:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* 分隔线 */
hr {
    border: none;
    height: 1px;
    background: rgba(255, 255, 255, 0.2);
    margin: 2rem 0;
}

body.dark-mode hr {
    background: rgba(255, 255, 255, 0.1);
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .main-container {
        grid-template-columns: 1fr;
        max-width: 900px;
    }
    
    .sidebar-left,
    .sidebar-right {
        display: none;
    }
}

@media (max-width: 768px) {
    .navbar {
        padding: 1rem;
    }
    
    .navbar-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.95);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 1rem;
        gap: 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    }
    
    body.dark-mode .navbar-links {
        background: rgba(15, 23, 42, 0.95);
    }
    
    .navbar-links.active {
        display: flex;
    }
    
    .navbar-links li {
        width: 100%;
    }
    
    .navbar-links a {
        color: #2d3748;
        padding: 1rem;
        border-radius: 0;
        border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    }
    
    body.dark-mode .navbar-links a {
        color: #e2e8f0;
        border-bottom-color: rgba(255, 255, 255, 0.1);
    }
    
    .hamburger {
        display: flex;
    }
    
    .main-container {
        padding: 1rem;
    }
    
    .content-card {
        padding: 1.5rem;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
}

/* 滚动条美化 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
}

::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.3);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.5);
}

body.dark-mode ::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
}

body.dark-mode ::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.2);
}

body.dark-mode ::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* 动画效果 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.content-card {
    animation: fadeIn 0.5s ease;
}

/* 阅读进度条 */
.reading-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
    z-index: 1001;
    transition: width 0.1s;
}

body.dark-mode .reading-progress {
    background: linear-gradient(90deg, #4c51bf 0%, #667eea 100%);
}