/* Blog Styles */

/* Blog Hero */
.blog-hero {
    padding: var(--space-16) 0 var(--space-8);
    text-align: center;
}

.blog-hero h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    margin-bottom: var(--space-4);
}

.blog-hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto var(--space-8);
}

/* Category Filters */
.blog-categories {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
    justify-content: center;
}

.category-btn {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.category-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.category-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

/* Blog Grid */
.blog-grid-section {
    padding: var(--space-8) 0 var(--space-16);
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: var(--space-6);
}

/* Blog Card */
.blog-card {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: all var(--transition-base);
}

.blog-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary);
    box-shadow: 0 20px 40px rgba(99, 102, 241, 0.15);
}

.blog-card-featured {
    grid-column: span 2;
}

.blog-card-featured .blog-card-link {
    display: grid;
    grid-template-columns: 1fr 1fr;
}

.blog-card-link {
    text-decoration: none;
    color: inherit;
    display: block;
}

.blog-card-image {
    position: relative;
    aspect-ratio: 16/9;
    background: linear-gradient(135deg, var(--bg-tertiary), var(--bg-secondary));
    overflow: hidden;
}

.blog-card-featured .blog-card-image {
    aspect-ratio: auto;
    min-height: 300px;
}

.blog-card-image-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    font-size: 4rem;
}

.blog-card-category {
    position: absolute;
    top: var(--space-3);
    left: var(--space-3);
    background: var(--primary);
    color: white;
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.blog-card-content {
    padding: var(--space-5);
}

.blog-card-date {
    display: block;
    font-size: 0.875rem;
    color: var(--text-tertiary);
    margin-bottom: var(--space-2);
}

.blog-card-title {
    font-size: 1.25rem;
    font-weight: 600;
    line-height: 1.4;
    margin-bottom: var(--space-3);
    color: var(--text-primary);
}

.blog-card-featured .blog-card-title {
    font-size: 1.5rem;
}

.blog-card-excerpt {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.6;
    margin-bottom: var(--space-4);
}

.blog-card-meta {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.blog-card-read-time {
    font-size: 0.875rem;
    color: var(--text-tertiary);
}

/* Pagination */
.blog-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-2);
    margin-top: var(--space-12);
}

.pagination-link,
.pagination-current,
.pagination-next {
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-md);
    font-weight: 500;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.pagination-current {
    background: var(--primary);
    color: white;
}

.pagination-link {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
}

.pagination-link:hover {
    background: var(--primary);
    color: white;
}

.pagination-next {
    background: var(--bg-tertiary);
    color: var(--primary);
}

.pagination-next:hover {
    background: var(--primary);
    color: white;
}

/* Newsletter */
.blog-newsletter {
    padding: var(--space-16) 0;
    background: var(--bg-secondary);
}

.newsletter-box {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-8);
    padding: var(--space-8);
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(99, 102, 241, 0.05));
    border: 1px solid var(--primary);
    border-radius: var(--radius-xl);
}

.newsletter-content h2 {
    font-size: 1.5rem;
    margin-bottom: var(--space-2);
}

.newsletter-content p {
    color: var(--text-secondary);
}

.newsletter-form {
    display: flex;
    gap: var(--space-3);
}

.newsletter-form input[type="email"] {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    min-width: 280px;
}

.newsletter-form input[type="email"]:focus {
    outline: none;
    border-color: var(--primary);
}

/* Article Page Styles */
.article-layout {
    display: grid;
    grid-template-columns: 1fr 280px;
    gap: var(--space-12);
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--space-8) var(--space-4);
}

.article-main {
    min-width: 0;
}

.article-sidebar {
    position: sticky;
    top: 100px;
    height: fit-content;
    max-height: calc(100vh - 120px);
    overflow-y: auto;
}

/* Article Header */
.article-header {
    margin-bottom: var(--space-8);
}

.article-breadcrumb {
    font-size: 0.875rem;
    color: var(--text-tertiary);
    margin-bottom: var(--space-4);
}

.article-breadcrumb a {
    color: var(--primary);
    text-decoration: none;
}

.article-category {
    display: inline-block;
    background: var(--primary);
    color: white;
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    margin-bottom: var(--space-4);
}

.article-title {
    font-size: clamp(2rem, 4vw, 3rem);
    line-height: 1.2;
    margin-bottom: var(--space-4);
}

.article-meta {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    color: var(--text-tertiary);
    font-size: 0.9375rem;
}

.article-meta-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

/* Article Content */
.article-content {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--text-secondary);
}

.article-content h2 {
    font-size: 1.75rem;
    color: var(--text-primary);
    margin-top: var(--space-12);
    margin-bottom: var(--space-4);
    padding-top: var(--space-4);
    border-top: 1px solid var(--border-color);
}

.article-content h3 {
    font-size: 1.25rem;
    color: var(--text-primary);
    margin-top: var(--space-8);
    margin-bottom: var(--space-3);
}

.article-content p {
    margin-bottom: var(--space-4);
}

.article-content ul,
.article-content ol {
    margin-bottom: var(--space-4);
    padding-left: var(--space-6);
}

.article-content li {
    margin-bottom: var(--space-2);
}

.article-content a {
    color: var(--primary);
    text-decoration: underline;
}

.article-content img {
    max-width: 100%;
    border-radius: var(--radius-lg);
    margin: var(--space-6) 0;
}

/* Article Intro Box */
.article-intro {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(99, 102, 241, 0.05));
    border-left: 4px solid var(--primary);
    padding: var(--space-6);
    border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
    margin-bottom: var(--space-8);
    font-size: 1.125rem;
}

/* Callout Boxes */
.callout {
    padding: var(--space-5);
    border-radius: var(--radius-lg);
    margin: var(--space-6) 0;
}

.callout-tip {
    background: rgba(34, 197, 94, 0.1);
    border-left: 4px solid #22c55e;
}

.callout-warning {
    background: rgba(245, 158, 11, 0.1);
    border-left: 4px solid #f59e0b;
}

.callout-info {
    background: rgba(59, 130, 246, 0.1);
    border-left: 4px solid #3b82f6;
}

.callout-title {
    font-weight: 600;
    margin-bottom: var(--space-2);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

/* Code Blocks */
.article-content pre {
    background: var(--bg-tertiary);
    padding: var(--space-4);
    border-radius: var(--radius-lg);
    overflow-x: auto;
    margin: var(--space-6) 0;
}

.article-content code {
    font-family: 'Fira Code', monospace;
    font-size: 0.875rem;
}

.article-content p code {
    background: var(--bg-tertiary);
    padding: 0.125rem 0.375rem;
    border-radius: var(--radius-sm);
}

/* TOC Sidebar */
.toc-box {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    margin-bottom: var(--space-6);
}

.toc-title {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-tertiary);
    margin-bottom: var(--space-4);
}

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

.toc-list li {
    margin-bottom: var(--space-2);
}

.toc-list a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9375rem;
    line-height: 1.5;
    display: block;
    padding: var(--space-2) 0;
    border-left: 2px solid transparent;
    padding-left: var(--space-3);
    transition: all var(--transition-fast);
}

.toc-list a:hover,
.toc-list a.active {
    color: var(--primary);
    border-left-color: var(--primary);
}

/* Author Box */
.author-box {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    text-align: center;
}

.author-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-4);
    font-size: 2rem;
    color: white;
    font-weight: 700;
}

.author-name {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--space-2);
}

.author-title {
    font-size: 0.875rem;
    color: var(--text-tertiary);
    margin-bottom: var(--space-3);
}

.author-bio {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--space-4);
}

.author-linkedin {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--primary);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
}

.author-linkedin:hover {
    text-decoration: underline;
}

/* Related Articles */
.related-articles {
    padding: var(--space-16) 0;
    background: var(--bg-secondary);
}

.related-articles h2 {
    text-align: center;
    margin-bottom: var(--space-8);
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
}

/* Share Buttons */
.article-share {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-top: var(--space-8);
    padding-top: var(--space-6);
    border-top: 1px solid var(--border-color);
}

.share-label {
    font-weight: 500;
    color: var(--text-tertiary);
}

.share-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.share-btn:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

/* Responsive */
@media (max-width: 1024px) {
    .article-layout {
        grid-template-columns: 1fr;
    }

    .article-sidebar {
        display: none;
    }

    .blog-card-featured {
        grid-column: span 1;
    }

    .blog-card-featured .blog-card-link {
        grid-template-columns: 1fr;
    }

    .related-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .newsletter-box {
        flex-direction: column;
        text-align: center;
    }

    .newsletter-form {
        flex-direction: column;
        width: 100%;
    }

    .newsletter-form input[type="email"] {
        min-width: 100%;
    }

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

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