/* Blog — extends base design system */

/* Hero */
.blog-hero {
  padding: 140px 0 64px;
  background: var(--bg-primary);
  color: var(--text-white);
}
.blog-hero h1 { margin-top: 12px; color: var(--text-white); }
.blog-hero-sub {
  font-size: 1.175rem;
  line-height: 1.7;
  color: var(--text-muted-light);
  max-width: 640px;
  margin-top: 16px;
}

/* Listing */
.blog-listing {
  padding: 48px 0 80px;
  background: var(--bg-primary);
  min-height: 300px;
}
.blog-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}
.blog-empty {
  color: var(--text-muted-light);
  text-align: center;
  padding: 64px 0;
  font-size: 1.05rem;
}

/* Card */
.blog-card {
  display: flex;
  gap: 24px;
  padding: 28px 0;
  border-bottom: 1px solid var(--border-dark);
  text-decoration: none;
  transition: var(--transition);
}
.blog-card:first-child { border-top: 1px solid var(--border-dark); }
.blog-card:hover { background: rgba(14, 165, 233, 0.03); }
.blog-card:hover .blog-card-title { color: var(--accent-light); }

.blog-card-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
  min-width: 100px;
  flex-shrink: 0;
  padding-top: 4px;
}
.blog-card-date {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-muted-light);
  letter-spacing: 0.02em;
}
.blog-card-reading {
  font-size: 0.75rem;
  color: var(--text-muted-light);
  opacity: 0.7;
}
.blog-card-body { flex: 1; min-width: 0; }
.blog-card-tag {
  display: inline-block;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 8px;
}
.blog-card-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--text-white);
  line-height: 1.25;
  letter-spacing: -0.02em;
  transition: color var(--transition);
}
.blog-card-excerpt {
  margin-top: 8px;
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--text-muted-light);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Post page */
.blog-post-hero {
  padding: 140px 0 48px;
  background: var(--bg-primary);
  color: var(--text-white);
}
.blog-post-hero .container { max-width: 780px; }
.blog-post-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  color: var(--text-muted-light);
  margin-bottom: 24px;
  transition: color var(--transition);
}
.blog-post-back:hover { color: var(--accent-light); }
.blog-post-tag {
  display: inline-block;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 12px;
}
.blog-post-hero h1 {
  color: var(--text-white);
  font-size: clamp(2rem, 4vw + 0.5rem, 3rem);
  margin-bottom: 16px;
}
.blog-post-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.9rem;
  color: var(--text-muted-light);
  margin-top: 16px;
}
.blog-post-meta span { display: flex; align-items: center; gap: 6px; }

/* Article body */
.blog-post-body {
  padding: 48px 0 80px;
  background: var(--bg-primary);
}
.blog-post-body .container { max-width: 780px; }
.blog-post-content {
  color: var(--text-muted-light);
  font-size: 1.05rem;
  line-height: 1.8;
}
.blog-post-content h2 {
  color: var(--text-white);
  font-size: 1.75rem;
  margin: 48px 0 16px;
}
.blog-post-content h3 {
  color: var(--text-white);
  font-size: 1.3rem;
  margin: 36px 0 12px;
}
.blog-post-content p { margin-bottom: 20px; }
.blog-post-content a {
  color: var(--accent-light);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.blog-post-content a:hover { color: var(--accent); }
.blog-post-content ul, .blog-post-content ol {
  margin: 16px 0 24px 24px;
}
.blog-post-content li {
  margin-bottom: 8px;
  line-height: 1.7;
}
.blog-post-content ul li { list-style: disc; }
.blog-post-content ol li { list-style: decimal; }
.blog-post-content blockquote {
  border-left: 3px solid var(--accent);
  padding: 12px 20px;
  margin: 24px 0;
  background: rgba(14, 165, 233, 0.05);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text-white);
  font-style: italic;
}
.blog-post-content code {
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: 0.88em;
  background: var(--bg-tertiary);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--accent-light);
}
.blog-post-content pre {
  background: var(--bg-secondary);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-md);
  padding: 20px;
  overflow-x: auto;
  margin: 24px 0;
}
.blog-post-content pre code {
  background: none;
  padding: 0;
  font-size: 0.85rem;
  color: var(--text-muted-light);
}
.blog-post-content strong { color: var(--text-white); }
.blog-post-content img {
  max-width: 100%;
  border-radius: var(--radius-md);
  margin: 24px 0;
}
.blog-post-content hr {
  border: none;
  border-top: 1px solid var(--border-dark);
  margin: 40px 0;
}

/* Tags */
.blog-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 10px;
}
.blog-tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 500;
  padding: 3px 10px;
  border-radius: 100px;
  background: var(--bg-tertiary);
  color: var(--text-muted-light);
  transition: var(--transition);
  text-decoration: none;
  border: 1px solid transparent;
}
.blog-tag:hover {
  color: var(--accent-light);
  border-color: var(--accent);
  background: rgba(14, 165, 233, 0.08);
}
.blog-tag.active {
  color: var(--accent-light);
  border-color: var(--accent);
  background: rgba(14, 165, 233, 0.12);
}
.blog-post-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}
.blog-post-tags .blog-tag {
  font-size: 0.75rem;
  padding: 4px 12px;
}

/* Tag filter bar */
.blog-tag-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--border-dark);
  margin-bottom: 8px;
}
.blog-tag-filter .blog-tag { cursor: pointer; }
.blog-tag-clear {
  font-size: 0.75rem;
  color: var(--text-muted-light);
  background: none;
  border: none;
  cursor: pointer;
  padding: 3px 8px;
  opacity: 0.6;
  transition: var(--transition);
}
.blog-tag-clear:hover { opacity: 1; color: var(--accent-light); }

/* Breadcrumbs */
.blog-breadcrumbs {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  color: var(--text-muted-light);
  margin-bottom: 20px;
}
.blog-breadcrumbs a {
  color: var(--text-muted-light);
  transition: color var(--transition);
}
.blog-breadcrumbs a:hover { color: var(--accent-light); }
.blog-breadcrumbs .sep { opacity: 0.4; }

/* Active nav link */
.nav-active { color: var(--accent) !important; }

/* Responsive */
@media (max-width: 640px) {
  .blog-card { flex-direction: column; gap: 8px; }
  .blog-card-meta { flex-direction: row; gap: 12px; }
  .blog-post-hero h1 { font-size: 1.75rem; }
}