.blog-reading-time {
  width: max-content;
  margin-block: 0.75rem 1.5rem;
  padding: 0.35rem 0.65rem;
  border: 1px solid var(--border-color);
  border-radius: 999px;
  background: var(--bg-secondary);
  color: var(--text-secondary);
  font-size: 0.8125rem;
  line-height: 1;
}

.blog-toc {
  margin-block: 0 2rem;
  padding: 1rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  background: var(--bg-secondary);
}

.blog-toc__title {
  margin-block-end: 0.625rem;
  color: var(--text-primary);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.blog-toc__list {
  margin: 0; padding: 0; list-style: none;
}

.blog-toc__item { margin: 0; padding: 0; }

.blog-toc__item + .blog-toc__item { margin-block-start: 0.25rem; }

.blog-toc__link {
  display: block;
  padding: 0.375rem 0.5rem;
  border-inline-start: 2px solid transparent;
  border-radius: 0.5rem;
  color: var(--text-secondary);
  font-size: 0.875rem;
  line-height: 1.45;
  text-decoration: none;
  transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
}

.blog-toc__link:hover {
  color: var(--text-primary);
  background: var(--bg-primary);
}

.blog-toc__link.is-active {
  border-inline-start-color: var(--accent-primary);
  background: var(--bg-primary);
  color: var(--text-primary);
}

.blog-card-filter-ready {
  opacity: 1;
  transform: translate3d(0, 0, 0);
  transition: opacity 0.24s ease, transform 0.24s ease, filter 0.24s ease;
}

.blog-card-filter-ready.is-filtered-out {
  opacity: 0;
  transform: translate3d(0, 10px, 0) scale(0.985);
  filter: blur(2px);
  pointer-events: none;
}

.blog-card-filter-ready[hidden] { display: none !important; }

.blog-related {
  margin-block-start: 3rem;
  padding-block-start: 2rem;
  border-block-start: 1px solid var(--border-color);
}

.blog-related__title {
  margin: 0 0 1rem;
  color: var(--text-primary);
  font-size: clamp(1.35rem, 2vw, 1.75rem);
  letter-spacing: -0.04em;
}

.blog-related__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

@media (max-width: 860px) {
  .blog-related__grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  .blog-toc__link, .blog-card-filter-ready { transition: none; }
  .blog-card-filter-ready.is-filtered-out { transform: none; filter: none; }
}