/* Single Article Styles */

.single-article {
    background: white;
}

/* Article Header */
.article-header {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    padding: var(--spacing-3xl) 0;
    margin-bottom: var(--spacing-2xl);
}

.article-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.category-tag {
    background: var(--primary-color);
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 15px;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
}

.article-date {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.article-title {
    font-size: var(--font-size-4xl);
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    line-height: 1.2;
    margin-bottom: var(--spacing-lg);
}

.article-excerpt {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-xl);
    max-width: 800px;
}

.article-featured-image {
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.featured-img {
    width: 100%;
    height: auto;
    display: block;
}

/* Article Content */

.content-wrapper {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: var(--spacing-2xl);
    align-items: start;
}

.main-content {
    font-size: var(--font-size-md);
    line-height: 1.8;
    color: var(--text-primary);
}

.main-content h1,
.main-content h2,
.main-content h3,
.main-content h4,
.main-content h5,
.main-content h6 {
    margin-top: var(--spacing-2xl);
    margin-bottom: var(--spacing-lg);
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    line-height: 1.3;
}

.main-content h1 { font-size: var(--font-size-3xl); }
.main-content h2 { font-size: var(--font-size-2xl); }
.main-content h3 { font-size: var(--font-size-xl); }
.main-content h4 { font-size: var(--font-size-lg); }

.main-content p {
    margin-bottom: var(--spacing-lg);
}

.main-content ul,
.main-content ol {
    margin-bottom: var(--spacing-lg);
    padding-left: var(--spacing-xl);
}

.main-content li {
    margin-bottom: var(--spacing-sm);
}

.main-content blockquote {
    background: #f8f9fa;
    border-left: 4px solid var(--primary-color);
    padding: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
    font-style: italic;
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
}

.main-content img {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius);
    margin: var(--spacing-lg) 0;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.main-content table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--spacing-xl) 0;
    background: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.main-content th,
.main-content td {
    padding: var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid #e9ecef;
}

.main-content th {
    background: var(--primary-color);
    color: white;
    font-weight: var(--font-weight-bold);
}

/* Content Sidebar */
.content-sidebar {
    position: sticky;
    top: var(--spacing-xl);
}

.widget-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--primary-color);
}

/* Table of Contents */
.toc-widget {
    background: white;
    border: 1px solid #e9ecef;
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.toc-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.toc-list li {
    margin-bottom: var(--spacing-xs);
}

.toc-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: var(--font-size-sm);
    line-height: 1.5;
    display: block;
    padding: var(--spacing-xs) 0;
    transition: color 0.3s ease;
}

.toc-link:hover {
    color: var(--primary-color);
    text-decoration: none;
}

/* Related Articles */
.related-widget {
    background: white;
    border: 1px solid #e9ecef;
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.related-item {
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid #f1f3f4;
}

.related-item:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.related-link {
    display: flex;
    gap: var(--spacing-sm);
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

.related-link:hover {
    text-decoration: none;
    transform: translateX(5px);
}

.related-thumb {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    border-radius: var(--border-radius);
    overflow: hidden;
}

.related-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.related-content {
    flex: 1;
}

.related-title {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--text-primary);
    margin: 0 0 var(--spacing-xs) 0;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.related-date {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
}

/* Article Footer */
.article-footer {
    background: #f8f9fa;
    padding: var(--spacing-xl) 0;
    margin-top: var(--spacing-3xl);
}

.article-tags {
    margin-bottom: var(--spacing-lg);
}

.tags-label {
    font-weight: var(--font-weight-medium);
    color: var(--text-primary);
    margin-right: var(--spacing-sm);
}

.article-tags a {
    display: inline-block;
    background: white;
    color: var(--text-secondary);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 15px;
    text-decoration: none;
    font-size: var(--font-size-sm);
    margin-right: var(--spacing-xs);
    margin-bottom: var(--spacing-xs);
    border: 1px solid #e9ecef;
    transition: all 0.3s ease;
}

.article-tags a:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    text-decoration: none;
}

.article-share {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.share-label {
    font-weight: var(--font-weight-medium);
    color: var(--text-primary);
}

.share-buttons {
    display: flex;
    gap: var(--spacing-xs);
}

.share-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: white;
    border: 1px solid #e9ecef;
    border-radius: 50%;
    text-decoration: none;
    transition: all 0.3s ease;
}

.share-btn:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
    transform: translateY(-2px);
    text-decoration: none;
}

.share-icon {
    font-size: 18px;
}

/* Post Navigation */
.post-navigation {
    background: white;
    padding: var(--spacing-2xl) 0;
    border-top: 1px solid #e9ecef;
}

.nav-links {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
}

.nav-previous {
    text-align: left;
}

.nav-next {
    text-align: right;
}

.nav-link {
    display: block;
    text-decoration: none;
    color: inherit;
    padding: var(--spacing-lg);
    border: 1px solid #e9ecef;
    border-radius: var(--border-radius-lg);
    transition: all 0.3s ease;
}

.nav-link:hover {
    border-color: var(--primary-color);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    text-decoration: none;
}

.nav-direction {
    display: block;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
}

.nav-title {
    display: block;
    font-weight: var(--font-weight-medium);
    color: var(--text-primary);
    line-height: 1.4;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .content-wrapper {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .content-sidebar {
        position: static;
        order: -1;
    }
    
    .toc-widget,
    .related-widget {
        display: none;
    }
}

@media (max-width: 768px) {
    .article-header {
        padding: var(--spacing-2xl) 0;
    }
    
    .article-title {
        font-size: var(--font-size-2xl);
    }
    
    .article-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
    
    .nav-links {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .article-share {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    .article-excerpt {
        font-size: var(--font-size-md);
    }
    
    .main-content {
        font-size: var(--font-size-sm);
    }
    
    .share-buttons {
        width: 100%;
        justify-content: space-around;
    }
}