/* ==========================================================================
   Blog Article Styles (2-Column Layout)
   ========================================================================== */

/* --------------------------------------------------------------------------
   Blog Main Container
   -------------------------------------------------------------------------- */
.blog-main {
    padding: var(--space-2xl) var(--space-lg);
    max-width: 1400px;
    margin: 0 auto;
}

.blog-container {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: var(--space-2xl);
}

/* --------------------------------------------------------------------------
   Blog Article
   -------------------------------------------------------------------------- */
.blog-article {
    min-width: 0;
}

.blog-article .article-content {
    padding: 0;
}

.blog-article .article-content h2 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    margin: var(--space-2xl) 0 var(--space-md);
    padding-bottom: var(--space-sm);
    border-bottom: 2px solid var(--accent-primary);
}

.blog-article .article-content h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    margin: var(--space-xl) 0 var(--space-sm);
    color: var(--text-primary);
}

.blog-article .article-content p {
    font-size: 1rem;
    line-height: 1.9;
    color: var(--text-secondary);
    margin-bottom: var(--space-md);
}

.blog-article .article-content ul,
.blog-article .article-content ol {
    margin: var(--space-md) 0;
    padding-left: var(--space-lg);
}

.blog-article .article-content li {
    margin-bottom: var(--space-sm);
    line-height: 1.7;
    color: var(--text-secondary);
}

.blog-article .article-content blockquote {
    margin: var(--space-lg) 0;
    padding: var(--space-md) var(--space-lg);
    background: var(--bg-card);
    border-left: 4px solid var(--accent-primary);
    border-radius: var(--radius-md);
}

.blog-article .article-content blockquote p {
    margin: 0;
    font-style: italic;
}

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

.blog-article .article-content a {
    color: var(--accent-primary);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.blog-article .article-content a:hover {
    color: var(--accent-secondary);
}

/* --------------------------------------------------------------------------
   Share Buttons
   -------------------------------------------------------------------------- */
.share-buttons {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-top: var(--space-2xl);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--border-subtle);
}

.share-label {
    font-family: var(--font-display);
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.share-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition-base);
}

.share-btn:hover {
    background: var(--bg-tertiary);
    border-color: var(--border-medium);
}

.share-twitter:hover { color: #1DA1F2; }
.share-facebook:hover { color: #4267B2; }
.share-line:hover { color: #00C300; }

/* --------------------------------------------------------------------------
   Sidebar
   -------------------------------------------------------------------------- */
.blog-sidebar {
    position: sticky;
    top: 100px;
    height: fit-content;
}

/* Table of Contents */
.toc-nav {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    margin-bottom: var(--space-lg);
}

.toc-title {
    font-family: var(--font-display);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-sm);
    border-bottom: 1px solid var(--border-subtle);
}

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

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

.toc-list a {
    display: block;
    padding: var(--space-xs) 0;
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition-base);
}

.toc-list a:hover {
    color: var(--accent-primary);
}

/* Sidebar Banners */
.sidebar-banners {
    margin-bottom: var(--space-lg);
}

.sidebar-banners a {
    display: block;
    margin-bottom: var(--space-sm);
}

.sidebar-banners img {
    width: 100%;
    border-radius: var(--radius-md);
}

/* Related Articles */
.related-articles {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
}

.related-title {
    font-family: var(--font-display);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-sm);
    border-bottom: 1px solid var(--border-subtle);
}

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

.related-list li {
    margin-bottom: var(--space-sm);
}

.related-list a {
    display: block;
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition-base);
}

.related-list a:hover {
    color: var(--accent-primary);
}

/* --------------------------------------------------------------------------
   Blog Meta Info
   -------------------------------------------------------------------------- */
.blog-meta-info {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-top: var(--space-md);
}

.read-time {
    font-family: var(--font-display);
    font-size: 0.8rem;
    color: var(--text-muted);
    padding: 0.3em 0.8em;
    background: var(--bg-card);
    border-radius: 100px;
}

/* --------------------------------------------------------------------------
   Responsive
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
    .blog-container {
        grid-template-columns: 1fr;
    }
    
    .blog-sidebar {
        position: static;
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: var(--space-md);
    }
    
    .sidebar-banners {
        display: none;
    }
}

@media (max-width: 768px) {
    .blog-main {
        padding: var(--space-xl) var(--space-md);
    }
    
    .blog-sidebar {
        grid-template-columns: 1fr;
    }
}