/* Blog listing */

.blog-header {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 5rem 2rem 3rem;
}

.blog-header h1 {
  font-size: 2.75rem;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}

.blog-header h1 em {
  font-style: italic;
  color: var(--accent);
}

.blog-header .blog-subtitle {
  color: var(--text-secondary);
  font-size: 1.1rem;
  max-width: 36rem;
}

/* Post list */

.blog-feed {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem 6rem;
}

.blog-feed .year-divider {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin: 3rem 0 1.5rem;
}

.blog-feed .year-divider:first-child {
  margin-top: 0;
}

.blog-feed .year-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-tertiary);
  letter-spacing: 0.06em;
  flex-shrink: 0;
}

.blog-feed .year-line {
  flex: 1;
  height: 1px;
  background: var(--border);
}

.post-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.post-item {
  display: grid;
  grid-template-columns: 7rem 1fr auto;
  align-items: baseline;
  gap: 1.5rem;
  padding: 0.85rem 1rem;
  margin: 0 -1rem;
  border-radius: 6px;
  transition: background 0.15s;
}

.post-item:hover {
  background: var(--bg-raised);
}

.post-date {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-tertiary);
  letter-spacing: 0.01em;
  white-space: nowrap;
}

.post-title {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  transition: color 0.15s;
}

.post-item:hover .post-title {
  color: var(--accent);
}

.post-tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-tertiary);
  letter-spacing: 0.03em;
  white-space: nowrap;
}

/* Article page */

.article {
  max-width: 42rem;
  margin: 0 auto;
  padding: 4rem 2rem 6rem;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin-bottom: 2rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-tertiary);
  letter-spacing: 0.01em;
}

.article-meta .sep {
  color: var(--border-light);
}

.article-back {
  display: inline-block;
  font-size: 0.85rem;
  color: var(--text-tertiary);
  margin-bottom: 2.5rem;
  transition: color 0.15s;
}

.article-back:hover {
  color: var(--text-secondary);
}

.article h1 {
  font-size: 2.5rem;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: 0.75rem;
}

.article h1 em {
  font-style: italic;
  color: var(--accent);
}

.article .article-lede {
  font-size: 1.15rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid var(--border);
}

.article h2 {
  font-size: 1.5rem;
  margin-top: 3rem;
  margin-bottom: 1rem;
}

.article h3 {
  font-size: 1.2rem;
  margin-top: 2.25rem;
  margin-bottom: 0.75rem;
}

.article p {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: 1.25rem;
}

.article ul,
.article ol {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: 1.25rem;
  padding-left: 1.5rem;
}

.article li {
  margin-bottom: 0.4rem;
}

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

.article code {
  font-size: 0.88em;
  background: var(--bg-surface);
  padding: 0.15em 0.4em;
  border-radius: 3px;
  color: var(--accent);
}

.article .code-block {
  margin-bottom: 1.5rem;
  max-width: none;
}

.article .code-block-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 1rem;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-tertiary);
}

.article .code-block pre {
  padding: 1.25rem;
  font-size: 0.85rem;
  line-height: 1.7;
  overflow-x: auto;
  color: var(--text-secondary);
}

.article .code-block .kw { color: #c792ea; }
.article .code-block .str { color: #8bb88a; }
.article .code-block .comment { color: var(--text-tertiary); }
.article .code-block .fn { color: #82aaff; }

.article blockquote {
  border-left: 2px solid var(--accent);
  padding-left: 1.25rem;
  margin: 1.5rem 0;
}

.article blockquote p {
  color: var(--text-secondary);
  font-style: italic;
}

.article hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 3rem 0;
}

/* Responsive */

@media (max-width: 768px) {
  .blog-header {
    padding: 3rem 1.5rem 2rem;
  }

  .blog-header h1 {
    font-size: 2rem;
  }

  .blog-feed {
    padding: 0 1.5rem 4rem;
  }

  .post-item {
    grid-template-columns: 1fr;
    gap: 0.15rem;
    padding: 0.75rem 1rem;
  }

  .post-tag {
    display: none;
  }

  .article {
    padding: 2.5rem 1.5rem 4rem;
  }

  .article h1 {
    font-size: 1.85rem;
  }
}