/* blog_style.css – dedicated style for blog posts, complements style.css */

/* Blog main container adjustments */
.blog-main {
    max-width: 1000px; /* slightly narrower for readability */
}

/* blog header */
.blog-header {
    text-align: center;
    padding: 2rem 2rem 1.5rem;
    margin-bottom: 2rem;
}
.blog-header h1 {
    font-size: 2rem;
    font-weight: 600;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.3rem;
}
.blog-header p {
    color: var(--text-secondary);
    font-size: 1rem;
}

/* blog posts grid (card overview) */
.blog-posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.blog-post-card {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    transition: all 0.25s ease;
    background: var(--card-bg); /* already glass but keep consistent */
    border-radius: 24px;
    border: 1px solid var(--glass-border);
    box-shadow: 0 8px 20px var(--shadow-color);
}
.blog-post-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary);
}

.post-meta {
    display: flex;
    gap: 1rem;
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
}
.post-meta i {
    margin-right: 0.2rem;
    color: var(--primary);
    opacity: 0.7;
}

.post-title {
    font-size: 1.3rem;
    font-weight: 600;
    line-height: 1.4;
    margin-bottom: 0.5rem;
}
.post-link {
    color: var(--text-primary);
    text-decoration: none;
    background: linear-gradient(to right, var(--primary), var(--primary)) no-repeat left bottom;
    background-size: 0% 2px;
    transition: background-size 0.2s;
}
.post-link:hover {
    background-size: 100% 2px;
    color: var(--primary);
}

.post-excerpt {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.5;
    margin-bottom: 1rem;
    flex: 1;
}

.post-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: 1rem;
}
.post-tags .tag {
    font-size: 0.7rem;
    padding: 0.2rem 0.6rem;
    background: var(--tag-bg);
    border-radius: 30px;
}

.read-more {
    align-self: flex-start;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--primary);
    text-decoration: none;
    border-bottom: 1px dotted transparent;
    transition: border-color 0.2s;
}
.read-more i {
    transition: transform 0.2s;
}
.read-more:hover {
    border-bottom-color: var(--primary);
}
.read-more:hover i {
    transform: translateX(4px);
}

/* full blog post styling */
.blog-post-full {
    margin-bottom: 3rem;
    padding: 2rem;
    scroll-margin-top: 80px; /* for anchor links */
}
.post-header {
    margin-bottom: 2rem;
    border-bottom: 1px dashed var(--glass-border);
    padding-bottom: 1.2rem;
}
.post-full-title {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    line-height: 1.3;
}
.post-meta-full {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-bottom: 0.8rem;
}
.post-meta-full i {
    color: var(--primary);
    margin-right: 0.3rem;
}
.post-tags-full {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}
.post-tags-full .tag {
    font-size: 0.8rem;
}

/* content typography */
.post-content {
    color: var(--text-primary);
    font-size: 1.05rem;
    line-height: 1.7;
}
.post-content h2 {
    font-size: 1.6rem;
    margin: 2rem 0 1rem;
    color: var(--text-primary);
}
.post-content h3 {
    font-size: 1.3rem;
    margin: 1.8rem 0 1rem;
    color: var(--text-primary);
}
.post-content p {
    margin-bottom: 1.2rem;
}
.post-content a {
    color: var(--primary);
    text-decoration: underline 1px dotted;
    text-underline-offset: 3px;
}
.post-content a:hover {
    color: var(--accent);
}

/* figures, images, videos */
.blog-figure {
    margin: 2rem 0;
    text-align: center;
}
.blog-image {
    max-width: 100%;
    border-radius: 20px;
    box-shadow: 0 12px 30px var(--shadow-color);
    border: 1px solid var(--glass-border);
}
.blog-video {
    max-width: 100%;
    border-radius: 20px;
    box-shadow: 0 12px 30px var(--shadow-color);
    border: 1px solid var(--glass-border);
    background: #000; /* fallback */
}
figcaption {
    margin-top: 0.6rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-style: italic;
}

/* equations (MathJax) */
.blog-equation {
    overflow-x: auto;
    margin: 2rem 0;
    padding: 0.5rem;
    background: var(--card-bg);
    border-radius: 16px;
    text-align: center;
    box-shadow: inset 0 2px 6px var(--shadow-color);
}
.blog-equation .MathJax {
    font-size: 1.1rem;
}

/* blockquote */
.blog-quote {
    margin: 2rem 0;
    padding: 1rem 2rem;
    background: var(--hover-bg);
    border-left: 5px solid var(--primary);
    border-radius: 0 20px 20px 0;
    font-style: italic;
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* blog navigation between posts */
.blog-navigation {
    display: flex;
    justify-content: space-between;
    margin: 1.5rem 0 2.5rem;
}
.back-to-blog-top, .back-to-blog-index {
    background: var(--card-bg);
    border: 1px solid var(--glass-border);
    border-radius: 40px;
    padding: 0.5rem 1.2rem;
    font-size: 0.9rem;
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    box-shadow: 0 4px 8px var(--shadow-color);
}
.back-to-blog-top:hover, .back-to-blog-index:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
    transform: translateY(-2px);
}

/* responsive */
@media (max-width: 768px) {
    .blog-posts-grid {
        grid-template-columns: 1fr;
    }
    .post-full-title {
        font-size: 1.8rem;
    }
    .post-meta-full {
        gap: 1rem;
    }
    .blog-post-full {
        padding: 1.5rem;
    }
    .blog-navigation {
        flex-direction: column;
        gap: 0.8rem;
        align-items: center;
    }
    .back-to-blog-top, .back-to-blog-index {
        width: 100%;
        justify-content: center;
    }
}

/* active navbar link style */
.navbar-link.active {
    background: var(--hover-bg);
    color: var(--primary);
    font-weight: 600;
}
.navbar-link.active i {
    color: var(--primary);
    opacity: 1;
}

/* Add to blog_style.css */

/* Breadcrumb navigation */
.blog-breadcrumb {
    margin-bottom: 1.5rem;
}

.blog-breadcrumb a {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1.2rem;
    background: var(--card-bg);
    border-radius: 40px;
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: var(--transition);
    box-shadow: 0 4px 10px var(--shadow-color);
}

.blog-breadcrumb a:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
    transform: translateX(-3px);
}

/* Post footer with share and navigation */
.post-footer {
    margin-top: 3rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--glass-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.post-share {
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.post-share span {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.share-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--card-bg);
    color: var(--text-primary);
    border: 1px solid var(--glass-border);
    transition: var(--transition);
}

.share-link:hover {
    background: var(--primary);
    color: white;
    transform: translateY(-3px);
    border-color: var(--primary);
}

.post-navigation {
    display: flex;
    gap: 1rem;
}

.prev-post, .next-post {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1.2rem;
    background: var(--card-bg);
    border-radius: 40px;
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: var(--transition);
}

.prev-post:hover, .next-post:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

/* Related posts */
.related-posts {
    margin-top: 2rem;
    padding: 2rem;
}

.related-posts h3 {
    font-size: 1.2rem;
    margin-bottom: 1.2rem;
    color: var(--text-primary);
}

.related-posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.related-post {
    padding: 1rem;
    background: var(--glass-bg);
    border-radius: 16px;
    border: 1px solid var(--glass-border);
    text-decoration: none;
    transition: var(--transition);
}

.related-post:hover {
    transform: translateY(-3px);
    border-color: var(--primary);
    background: var(--hover-bg);
}

.related-post h4 {
    font-size: 1rem;
    color: var(--text-primary);
    margin-bottom: 0.3rem;
    line-height: 1.4;
}

.related-date {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* Blog references */
.blog-references {
    margin-top: 2.5rem;
    padding: 1.5rem;
    background: var(--glass-bg);
    border-radius: 20px;
    border: 1px solid var(--glass-border);
}

.blog-references h3 {
    font-size: 1.1rem;
    margin-bottom: 1rem;
}

.blog-references ol, .blog-references ul {
    padding-left: 1.5rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.blog-references li {
    margin-bottom: 0.5rem;
}

/* Responsive */
@media (max-width: 768px) {
    .post-footer {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .post-navigation {
        width: 100%;
        justify-content: space-between;
    }
    
    .related-posts-grid {
        grid-template-columns: 1fr;
    }
    
    .blog-breadcrumb a {
        width: 100%;
        justify-content: center;
    }
}