/* ===== SINGLE POST STYLES ===== */

.article-hero { max-width: var(--container-max); margin: 0 auto; padding: 40px 24px 40px; }
.article-hero-inner { display: grid; grid-template-columns: 1fr 420px; gap: 48px; align-items: start; }
.article-meta-top { display: flex; align-items: center; gap: 16px; font-family: var(--font-nav); font-size: 0.72rem; color: var(--color-text-muted); margin-bottom: 16px; }
.article-title { font-family: var(--font-heading); font-size: 2.75rem; font-weight: 700; line-height: 1.2; letter-spacing: -0.5px; color: var(--color-text); margin-bottom: 20px; }
.article-excerpt { font-size: 0.975rem; line-height: 1.7; color: var(--color-text-secondary); margin-bottom: 24px; }

.article-authors { display: flex; align-items: center; gap: 32px; }
.author-badge { display: flex; align-items: center; gap: 10px; }
.author-avatar { width: 36px; height: 36px; border-radius: 50%; background: var(--color-bg-muted); flex-shrink: 0; overflow: hidden; }
.author-avatar img { width: 100%; height: 100%; object-fit: cover; border-radius: 50%; }
.author-info { font-family: var(--font-nav); font-size: 0.72rem; line-height: 1.4; }
.author-info .label { color: var(--color-text-muted); }
.author-info .name { font-weight: 600; color: var(--color-text); }
.author-info .name a { color: var(--color-text); text-decoration: underline; }
.author-info .role { color: var(--color-text-muted); }

.hero-image { border-radius: var(--radius-lg); overflow: hidden; background: var(--color-bg-muted); aspect-ratio: 16/11; }
.hero-image img { width: 100%; height: 100%; object-fit: cover; }

/* === LAYOUT === */
.article-layout {
    max-width: var(--container-max); margin: 0 auto; padding: 40px 24px 80px;
    display: grid; grid-template-columns: var(--sidebar-width) minmax(0, 1fr) var(--sidebar-width); gap: 40px;
}

/* TOC */
.toc-sidebar { position: sticky; top: calc(var(--header-height) + 24px); align-self: start; }
.toc-title { font-family: var(--font-nav); font-size: 0.7rem; font-weight: 400; color: var(--color-text-muted); margin-bottom: 12px; text-transform: uppercase; letter-spacing: 0.5px; }
.toc-list { list-style: none; }
.toc-list li { margin-bottom: 8px; }
.toc-list a { font-family: var(--font-nav); font-size: 0.72rem; color: var(--color-text-secondary); text-decoration: none; line-height: 1.4; display: block; transition: color 0.2s; }
.toc-list a:hover, .toc-list a.active { color: var(--color-primary); }

/* Right sidebar */
.right-sidebar { position: sticky; top: calc(var(--header-height) + 24px); align-self: start; }
.sidebar-widget { background: var(--color-bg); border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: 20px; }
.sidebar-widget-title { font-family: var(--font-nav); font-size: 0.78rem; font-weight: 600; margin-bottom: 8px; }
.sidebar-widget p { font-size: 0.85rem; color: var(--color-text-secondary); line-height: 1.5; }

/* === ARTICLE CONTENT (the_content) === */
.article-content { max-width: var(--content-max); }
.article-content p { margin-bottom: 1.25em; font-size: 0.975rem; line-height: 1.75; }
.article-content h2 { font-family: var(--font-heading); font-size: 1.85rem; font-weight: 700; line-height: 1.3; letter-spacing: -0.3px; margin-top: 2.5em; margin-bottom: 0.75em; }
.article-content h3 { font-family: var(--font-heading); font-size: 1.45rem; font-weight: 600; line-height: 1.35; margin-top: 2em; margin-bottom: 0.65em; }
.article-content h4 { font-family: var(--font-heading); font-size: 1.05rem; font-weight: 600; line-height: 1.4; margin-top: 1.75em; margin-bottom: 0.5em; }
.article-content h5 { font-family: var(--font-nav); font-size: 0.78rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; margin-top: 1.5em; margin-bottom: 0.5em; color: var(--color-text-secondary); }
.article-content h6 { font-family: var(--font-nav); font-size: 0.72rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; margin-top: 1.5em; margin-bottom: 0.5em; color: var(--color-text-muted); }

.article-content a { color: var(--color-link); text-decoration: underline; text-decoration-color: rgba(1,77,160,0.3); text-underline-offset: 2px; font-weight: 500; transition: text-decoration-color 0.2s, color 0.2s; }
.article-content a:hover { text-decoration-color: var(--color-link); }
.article-content strong { font-weight: 600; }

.article-content ul { margin-bottom: 1.25em; padding-left: 1.5em; list-style: disc; }
.article-content ol { margin-bottom: 1.25em; padding-left: 1.5em; list-style: decimal; }
.article-content li { margin-bottom: 0.5em; line-height: 1.7; font-size: 0.975rem; }
.article-content ol li::marker { color: var(--color-text-secondary); font-weight: 600; }

.article-content blockquote { margin: 2em 0; padding: 20px 24px; border-left: 3px solid var(--color-primary); background: var(--color-bg-soft); border-radius: 0 var(--radius-md) var(--radius-md) 0; }
.article-content blockquote p { font-size: 1.1rem; font-style: italic; margin-bottom: 0.5em; }
.article-content blockquote p:last-child { margin-bottom: 0; }
.article-content blockquote cite { display: block; font-family: var(--font-nav); font-size: 0.72rem; font-style: normal; color: var(--color-text-muted); margin-top: 8px; }
.article-content blockquote cite::before { content: '— '; }

.article-content table { width: 100%; margin: 2em 0; border-collapse: separate; border-spacing: 0; font-size: 0.9rem; line-height: 1.65; border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--color-border-light); }
.article-content table thead { background: var(--color-primary); }
.article-content table th { padding: 14px 20px; text-align: left; font-family: var(--font-nav); font-weight: 600; color: #fff; font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.5px; border: none; }
.article-content table td { padding: 14px 20px; border: none; border-bottom: 1px solid var(--color-border-light); color: var(--color-text); }
.article-content table tbody tr:last-child td { border-bottom: none; }
.article-content table tbody tr:nth-child(even) { background: var(--color-bg-soft); }
.article-content table tbody tr:hover { background: var(--color-primary-light); }

.article-content img { border-radius: var(--radius-lg); margin: 2em 0; }
.article-content figure { margin: 2em 0; }
.article-content figure img { margin: 0 0 8px; }
.article-content figcaption { font-family: var(--font-nav); font-size: 0.72rem; color: var(--color-text-muted); text-align: center; }

.article-content code { font-family: 'SF Mono','Fira Code','Consolas', monospace; font-size: 0.85em; background: var(--color-bg-muted); padding: 2px 6px; border-radius: var(--radius-sm); color: #0369a1; }
.article-content pre { margin: 2em 0; padding: 20px 24px; background: #1e1e2e; color: #cdd6f4; border-radius: var(--radius-md); overflow-x: auto; font-size: 0.85rem; line-height: 1.7; }
.article-content pre code { background: none; padding: 0; color: inherit; font-size: inherit; }

.article-content hr { border: none; height: 1px; background: var(--color-border); margin: 2.5em 0; }
.article-content mark { background: var(--color-primary-light); padding: 1px 4px; border-radius: 2px; }
.article-content kbd { font-family: inherit; font-size: 0.82em; background: var(--color-bg-muted); border: 1px solid var(--color-border); border-radius: var(--radius-sm); padding: 2px 6px; box-shadow: 0 1px 0 var(--color-border); }

.article-content dl { margin-bottom: 1.25em; }
.article-content dt { font-weight: 600; margin-bottom: 4px; margin-top: 1em; }
.article-content dd { margin-left: 1.5em; color: var(--color-text-secondary); margin-bottom: 0.5em; }

/* Callout boxes */
.article-content .wp-block-callout, .article-content .callout-box, .article-content .key-takeaways {
    margin: 2em 0; padding: 28px 32px; background: var(--color-bg-soft); border: 1px solid var(--color-border); border-radius: var(--radius-lg);
}
.key-takeaways-header { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.key-takeaways-header .icon { width: 28px; height: 28px; background: #fef3c7; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 0.9rem; }
.key-takeaways-header h3 { font-size: 1.15rem; font-weight: 700; margin: 0; }

.notice-box { margin: 2em 0; padding: 20px 24px; border-radius: var(--radius-md); font-family: var(--font-nav); font-size: 0.82rem; }
.notice-box p { margin-bottom: 0; font-size: inherit; color: inherit; }
.notice-info { background: #eff6ff; border: 1px solid #bfdbfe; color: #1e40af; }
.notice-warning { background: #fffbeb; border: 1px solid #fde68a; color: #92400e; }
.notice-success { background: #f0fdf4; border: 1px solid #bbf7d0; color: #166534; }
.notice-error { background: #fef2f2; border: 1px solid #fecaca; color: #991b1b; }

/* CTA Banner */
.cta-banner { display: block; margin: 2.5em auto; border-radius: var(--radius-xl); overflow: hidden; background: #1a1a2e; text-align: center; padding: 48px 32px; max-width: 560px; text-decoration: none; }
.cta-banner-text { color: #fff; font-size: 1.15rem; font-weight: 600; margin-bottom: 16px; }
.cta-banner .btn { background: #fff; color: var(--color-text); font-weight: 600; }

/* Author box */
.author-box { margin-top: 48px; padding-top: 32px; border-top: 1px solid var(--color-border); display: flex; gap: 16px; }
.author-box .author-avatar { width: 56px; height: 56px; }
.author-box-name { font-family: var(--font-nav); font-weight: 600; font-size: 0.85rem; margin-bottom: 4px; }
.author-box-bio { font-family: var(--font-nav); font-size: 0.78rem; color: var(--color-text-secondary); line-height: 1.6; }

/* Related posts */
.related-posts { max-width: var(--container-max); margin: 0 auto; padding: 48px 24px 80px; border-top: 1px solid var(--color-border); }
.related-posts h2 { font-family: var(--font-heading); font-size: 1.65rem; font-weight: 700; margin-bottom: 28px; }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.related-card { background: var(--color-bg); border: 1px solid var(--color-border); border-radius: var(--radius-lg); overflow: hidden; text-decoration: none; transition: box-shadow 0.2s, transform 0.15s; }
.related-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); }
.related-card-image { aspect-ratio: 16/10; background: var(--color-bg-muted); overflow: hidden; }
.related-card-image img { width: 100%; height: 100%; object-fit: cover; }
.related-card-body { padding: 16px 20px; }
.related-card-category { font-family: var(--font-nav); font-size: 0.68rem; font-weight: 600; color: var(--color-primary); text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 6px; }
.related-card-title { font-size: 0.975rem; font-weight: 500; line-height: 1.4; color: var(--color-text); }

/* Responsive */
@media (max-width: 1024px) {
    .article-layout { grid-template-columns: 1fr; gap: 0; }
    .toc-sidebar { position: relative; top: 0; border-bottom: 1px solid var(--color-border); padding-bottom: 24px; margin-bottom: 32px; }
    .right-sidebar { position: relative; top: 0; margin-top: 40px; }
    .article-hero-inner { grid-template-columns: 1fr; gap: 24px; }
    .hero-image { order: -1; }
}
@media (max-width: 640px) {
    .article-title { font-size: 1.65rem; }
    .article-authors { flex-direction: column; align-items: flex-start; gap: 12px; }
    .article-content h2 { font-size: 1.3rem; }
    .related-grid { grid-template-columns: 1fr; }
}