/* ============================================
   imanstore 静态博客 - 深色主题样式表
   ============================================ */

/* CSS 变量 - 定义主题色 */
:root {
    --bg-primary: #0f0f0f;
    --bg-secondary: #1a1a1a;
    --bg-card: #242424;
    --text-primary: #e0e0e0;
    --text-secondary: #a0a0a0;
    --accent: #6366f1;
    --accent-hover: #818cf8;
    --border: #333333;
    --shadow: rgba(0, 0, 0, 0.4);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

/* 容器 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 导航栏 */
header {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--accent);
    text-decoration: none;
}

.nav-links {
    display: flex;
    gap: 30px;
    list-style: none;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s;
}

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

/* 汉堡菜单按钮（移动端） */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 5px;
}

.menu-toggle span {
    width: 25px;
    height: 2px;
    background: var(--text-primary);
    transition: 0.3s;
}

/* 主内容区 */
main {
    min-height: calc(100vh - 200px);
    padding: 40px 0;
}

/* 页面标题 */
.page-title {
    font-size: 2rem;
    margin-bottom: 30px;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
}

/* 网格布局 */
.grid {
    display: grid;
    gap: 20px;
}

/* 照片网格 - 响应式 */
.photo-grid {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

.photo-grid img {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
    border-radius: 8px;
    cursor: pointer;
    transition: transform 0.3s, box-shadow 0.3s;
}

.photo-grid img:hover {
    transform: scale(1.03);
    box-shadow: 0 8px 30px var(--shadow);
}

/* 视频网格 */
.video-grid {
    grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
}

.video-item {
    background: var(--bg-card);
    border-radius: 12px;
    overflow: hidden;
}

.video-item video {
    width: 100%;
    display: block;
}

.video-info {
    padding: 15px;
}

.video-info h3 {
    font-size: 1rem;
    color: var(--text-primary);
}

/* 文章卡片 */
.article-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.article-card {
    background: var(--bg-card);
    padding: 25px;
    border-radius: 12px;
    border: 1px solid var(--border);
    cursor: pointer;
    transition: border-color 0.3s, transform 0.3s;
}

.article-card:hover {
    border-color: var(--accent);
    transform: translateX(5px);
}

.article-card h2 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.article-meta {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 10px;
}

.article-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.tag {
    background: var(--accent);
    color: white;
    padding: 2px 10px;
    border-radius: 15px;
    font-size: 0.8rem;
}

/* 文章阅读视图 */
.article-view {
    background: var(--bg-card);
    padding: 40px;
    border-radius: 12px;
    max-width: 800px;
    margin: 0 auto;
}

.article-view h1 {
    font-size: 2rem;
    margin-bottom: 15px;
}

.article-view .article-header {
    border-bottom: 1px solid var(--border);
    padding-bottom: 20px;
    margin-bottom: 30px;
}

.article-view .article-content {
    line-height: 1.8;
}

.article-view .article-content h2 {
    margin: 25px 0 15px;
    color: var(--accent);
}

.article-view .article-content p {
    margin-bottom: 15px;
}

.article-view .article-content ul,
.article-view .article-content ol {
    margin-left: 25px;
    margin-bottom: 15px;
}

.article-view .article-content li {
    margin-bottom: 5px;
}

.article-view .article-content code {
    background: var(--bg-secondary);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: monospace;
}

.article-view .article-content pre {
    background: var(--bg-secondary);
    padding: 15px;
    border-radius: 8px;
    overflow-x: auto;
    margin-bottom: 15px;
}

.article-view .article-content pre code {
    background: none;
    padding: 0;
}

.article-view .article-content blockquote {
    border-left: 4px solid var(--accent);
    padding-left: 20px;
    margin: 15px 0;
    color: var(--text-secondary);
}

.back-btn {
    display: inline-block;
    margin-bottom: 20px;
    color: var(--accent);
    text-decoration: none;
}

/* 空状态 */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}

.empty-state .icon {
    font-size: 3rem;
    margin-bottom: 15px;
}

/* 模态框（图片预览） */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    justify-content: center;
    align-items: center;
}

.modal.active {
    display: flex;
}

.modal img {
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 30px;
    font-size: 2rem;
    color: white;
    cursor: pointer;
}

/* 返回按钮 */
.back-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
    text-decoration: none;
    margin-bottom: 20px;
    font-size: 0.95rem;
}

.back-link:hover {
    color: var(--accent);
}

/* 页脚 */
footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    padding: 30px 0;
    text-align: center;
    color: var(--text-secondary);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--bg-secondary);
        flex-direction: column;
        padding: 20px;
        gap: 15px;
        border-bottom: 1px solid var(--border);
    }

    .nav-links.active {
        display: flex;
    }

    .menu-toggle {
        display: flex;
    }

    .page-title {
        font-size: 1.5rem;
    }

    .photo-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    }

    .video-grid {
        grid-template-columns: 1fr;
    }

    .article-view {
        padding: 20px;
    }
}