/* Blog article pages */

.article-page .section {
  padding-top: 0;
}

.article-layout {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: var(--space-8);
  align-items: start;
}

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

.article-header {
  margin-bottom: var(--space-6);
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3) var(--space-6);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
  font-family: "JetBrains Mono", monospace;
}

.article-meta strong {
  color: var(--color-text);
  font-weight: 600;
}

.article-header h1 {
  font-family: "Oswald", sans-serif;
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 700;
  line-height: 1.15;
  text-transform: uppercase;
  color: var(--color-text);
  margin-bottom: var(--space-4);
}

.article-excerpt {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  line-height: 1.65;
  max-width: 720px;
}

.article-featured {
  height: 280px;
  border-radius: var(--radius-lg);
  background: linear-gradient(145deg, var(--color-primary-muted), #ecfdf5);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
  margin-bottom: var(--space-8);
  box-shadow: var(--shadow-layered);
}

.article-toc {
  padding: var(--space-6);
  margin-bottom: var(--space-8);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.article-toc h2 {
  font-family: "Oswald", sans-serif;
  font-size: var(--text-base);
  text-transform: uppercase;
  margin-bottom: var(--space-4);
  color: var(--color-text);
}

.article-toc ol {
  list-style: none;
  counter-reset: toc;
}

.article-toc li {
  counter-increment: toc;
  margin-bottom: var(--space-2);
}

.article-toc a {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  display: flex;
  gap: var(--space-3);
  padding: var(--space-2) 0;
  border-bottom: 1px solid var(--color-border);
  transition: var(--transition);
}

.article-toc a::before {
  content: counter(toc, decimal-leading-zero);
  color: var(--color-primary);
  font-weight: 600;
  font-family: "JetBrains Mono", monospace;
  flex-shrink: 0;
}

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

.article-content {
  font-size: var(--text-base);
  line-height: 1.75;
  color: var(--color-text);
}

.article-content h2 {
  font-family: "Oswald", sans-serif;
  font-size: var(--text-lg);
  font-weight: 600;
  text-transform: uppercase;
  margin: var(--space-8) 0 var(--space-4);
  color: var(--color-text);
  scroll-margin-top: calc(var(--nav-height) + var(--space-4));
}

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

.article-content ul {
  list-style: disc;
  margin: 0 0 var(--space-4) var(--space-6);
  color: var(--color-text-muted);
}

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

.article-content a {
  color: var(--color-primary);
  font-weight: 500;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.article-main > .article-toc {
  display: block;
}

.article-sidebar {
  display: none;
}

@media (min-width: 901px) {
  .article-main > .article-toc {
    display: none;
  }

  .article-sidebar {
    display: block;
  }

  .article-sidebar .article-toc {
    position: sticky;
    top: calc(var(--nav-height) + var(--space-4));
    margin-bottom: 0;
  }
}

.article-back {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: var(--space-6);
}

.article-back:hover {
  text-decoration: underline;
}

.related-posts {
  margin-top: calc(var(--space-8) * 2);
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-border);
}

.related-posts h2 {
  font-family: "Oswald", sans-serif;
  font-size: var(--text-xl);
  text-transform: uppercase;
  margin-bottom: var(--space-6);
  text-align: center;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--space-6);
}

.related-grid .blog-card h3 {
  font-size: var(--text-base);
}

@media (max-width: 900px) {
  .article-layout {
    grid-template-columns: 1fr;
  }

  .article-sidebar {
    order: -1;
  }

  .article-sidebar .article-toc {
    position: static;
    margin-bottom: var(--space-6);
  }
}

@media (max-width: 768px) {
  .article-featured {
    height: 200px;
    font-size: 3rem;
  }
}