:root {
    --blog-max-width: 860px;
}

.blog-page .navbar {
    position: sticky;
    top: 0;
    z-index: 50;
}

.blog-main {
    padding: calc(var(--spacing-3xl) - 1rem) 0 var(--spacing-3xl);
    background: var(--bg-primary);
}

.blog-header {
    max-width: var(--blog-max-width);
    margin: 0 auto var(--spacing-xl);
}

.blog-title {
    margin-bottom: var(--spacing-xs);
}

.blog-subtitle {
    color: var(--text-secondary);
    margin: 0;
}

.blog-app {
    max-width: var(--blog-max-width);
    margin: 0 auto;
}

.blog-loading {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
}

/* SEO/crawlability: render a simple link list in the initial HTML, hide it when JS is active */
.js .blog-static-links {
    display: none;
}

.blog-static-links a {
    text-decoration: underline;
    text-decoration-color: rgba(99, 102, 241, 0.45);
    text-underline-offset: 3px;
}

.post-list {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
}

.post-card {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    background: var(--bg-secondary);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.post-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: rgba(99, 102, 241, 0.35);
}

.post-card a {
    display: block;
}

.post-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 0.75rem;
    align-items: center;
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: var(--spacing-xs);
}

.post-title {
    font-size: 1.35rem;
    margin: 0 0 var(--spacing-xs);
}

.post-excerpt {
    color: var(--text-secondary);
    margin: 0;
}

.post-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: var(--spacing-sm);
}

.post-tag {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.6rem;
    font-size: 0.85rem;
    color: var(--primary-dark);
    background: rgba(99, 102, 241, 0.12);
    border-radius: var(--radius-full);
}

.post-view {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    background: var(--bg-primary);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-sm);
}

.post-view h1 {
    font-size: clamp(2rem, 3.6vw, 2.6rem);
    margin-bottom: var(--spacing-xs);
}

.post-view .post-meta {
    margin-bottom: var(--spacing-md);
}

.post-view .post-content > *:last-child {
    margin-bottom: 0;
}

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

.post-content h2,
.post-content h3 {
    margin-top: var(--spacing-xl);
}

/* Typography tuning: keep headings readable but not overpowering */
.post-content h2 {
    font-size: clamp(1.25rem, 1.6vw, 1.5rem);
    line-height: 1.25;
    margin-bottom: var(--spacing-xs);
}

.post-content h3 {
    font-size: clamp(1.05rem, 1.25vw, 1.2rem);
    line-height: 1.35;
    margin-bottom: var(--spacing-xs);
}

.post-content pre {
    background: #0b1220;
    color: #e5e7eb;
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    overflow: auto;
    margin: var(--spacing-md) 0;
}

.post-content code {
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
    font-size: 0.95em;
}

.post-content blockquote {
    border-left: 4px solid rgba(99, 102, 241, 0.6);
    padding-left: var(--spacing-md);
    color: var(--text-secondary);
    margin: var(--spacing-md) 0;
}

.post-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    margin-bottom: var(--spacing-md);
}

.post-nav a {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-dark);
}

.post-error {
    border: 1px solid rgba(239, 68, 68, 0.35);
    background: rgba(239, 68, 68, 0.08);
    padding: var(--spacing-lg);
    border-radius: var(--radius-xl);
    color: var(--text-primary);
}

.blog-footer {
    border-top: 1px solid var(--border-color);
    background: var(--bg-primary);
    padding: var(--spacing-lg) 0;
}

.blog-footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.blog-footer-link {
    color: var(--primary-dark);
}

@media (max-width: 768px) {
    .post-view {
        padding: var(--spacing-lg);
    }
    .blog-footer-inner {
        flex-direction: column;
        align-items: flex-start;
    }
}