/* ─── Blog index ─────────────────────────────────────── */

/* Tag pills (blog index + post header) */
.blog-tag {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 10px;
  background: var(--color-background-card);
  border: 1px solid var(--color-border-card);
  color: var(--color-text-muted);
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition: background 0.1s, color 0.1s, border-color 0.1s;
}
.blog-tag:hover,
.blog-tag--active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: light-dark(white, var(--gray-12));
}

/* Tags container in index rows */
.blog-post-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  margin-left: auto;
}

/* Tags container in post header */
.post-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-bottom: 1.25rem;
}

/* Active tag filter bar */
.blog-filter-bar {
  display: none;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 1rem;
}

#clear-tag {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-text-muted);
  font-size: 0.9rem;
  padding: 0;
  line-height: 1;
}
#clear-tag:hover { color: var(--color-primary); }

.blog-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.75rem;
  flex-wrap: wrap;
}

.blog-title {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-text-emphasized);
  margin: 0;
}

.blog-search {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  padding: 0.35rem 0.75rem;
  border: 1.5px solid var(--color-border);
  border-radius: var(--border-radius);
  background: var(--color-background-input);
  color: var(--color-text);
  width: 200px;
  outline: none;
  transition: border-color 0.15s;
}
.blog-search:focus {
  border-color: var(--color-primary);
}

/* ─── Year groups ────────────────────────────────────── */

.blog-year-group {
  margin-bottom: 1.5rem;
}

.blog-year {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-text-muted);
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 0.3rem;
  margin-bottom: 0.5rem;
}

/* ─── Post rows ──────────────────────────────────────── */

.blog-post-row {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  padding: 0.4rem 0.25rem;
  border-radius: 4px;
  text-decoration: none;
  color: var(--color-text);
  transition: background 0.1s;
}
.blog-post-row:hover {
  background: var(--color-background-link-hover);
}
.blog-post-row:hover .blog-post-title {
  color: var(--color-primary);
}

.blog-post-date {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-text-muted);
  min-width: 4.5rem;
  flex-shrink: 0;
}

.blog-post-title {
  font-size: 0.95rem;
  color: var(--color-text-emphasized);
}

/* ─── Post two-column layout ─────────────────────────── */

.post-layout {
  display: grid;
  grid-template-columns: 1fr 200px;
  gap: 2.5rem;
  align-items: start;
}

@media (max-width: 860px) {
  .post-layout {
    grid-template-columns: 1fr;
  }
  .post-toc {
    position: static !important;
  }
}

/* ─── Table of contents ─────────────────────────────── */

.post-toc {
  position: sticky;
  top: 2rem;
  border: 1.5px solid var(--color-border-card);
  border-radius: var(--border-radius);
  background: var(--color-background-card);
  padding: 0.85rem 1rem;
}

.toc-label {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  margin: 0 0 0.5rem;
}

.toc-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.toc-list a {
  font-size: 0.88rem;
  line-height: 1.3;
  color: var(--color-text);
  text-decoration: none;
  display: block;
  padding: 1px 0 1px 0.5rem;
  border-left: 2px solid transparent;
  transition: color 0.1s, border-color 0.1s;
}
.toc-list a:hover {
  color: var(--color-primary);
}
.toc-list a.toc-active {
  color: var(--color-primary);
  border-left-color: var(--color-primary);
}

.toc-list .toc-h3 a {
  padding-left: 1.25rem;
  font-size: 0.83rem;
  color: var(--color-text-muted);
}
.toc-list .toc-h3 a.toc-active {
  color: var(--color-primary);
  border-left-color: var(--color-primary);
}

/* ─── Individual post ────────────────────────────────── */

.post-article {
  width: 100%;
}

.post-title {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-text-emphasized);
  margin-bottom: 0.35rem;
}

.post-meta {
  font-size: 0.82rem;
  font-family: var(--font-mono);
  color: var(--color-text-muted);
  margin-bottom: 1.75rem;
}

.post-body {
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--color-text);
}
.post-body h2 { font-size: 1.1rem; margin: 1.5rem 0 0.5rem; color: var(--color-text-emphasized); }
.post-body h3 { font-size: 1rem; margin: 1.25rem 0 0.4rem; color: var(--color-text-emphasized); }
.post-body p  { margin-bottom: 1rem; }
.post-body a  { color: var(--color-primary); }
.post-body code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  background: var(--color-background-input);
  border: 1px solid var(--color-border);
  padding: 1px 5px;
  border-radius: 4px;
}
.post-body pre {
  background: var(--color-background-input);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: 1rem;
  overflow-x: auto;
  margin-bottom: 1rem;
}
.post-body pre code { background: none; border: none; padding: 0; }