.blog-hero {
  border-bottom: 1px solid var(--color-border);
  background:
    linear-gradient(var(--color-border), var(--color-border)) left top / 100% 1px no-repeat,
    linear-gradient(90deg, transparent, var(--color-surface-soft), transparent);
}

.blog-hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(16rem, 0.65fr);
  gap: clamp(2rem, 6vw, 6rem);
  align-items: end;
}

.blog-hero-copy {
  max-width: 47rem;
}

.blog-kicker,
.blog-panel-label {
  display: inline-block;
  color: var(--color-accent-dark);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.blog-hero h1 {
  max-width: 46rem;
  margin: 0.8rem 0 1.25rem;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 6vw, 3rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  text-wrap: pretty;
}

.blog-hero-copy > p {
  max-width: 42rem;
  margin: 0;
  color: var(--color-muted);
  font-size: 1.05rem;
  line-height: 1.8;
}

.blog-hero-panel {
  position: relative;
  overflow: hidden;
  padding: 1.25rem;
  border: 1px solid var(--color-rack-line);
  border-radius: var(--radius-md);
  background: var(--color-rack);
  color: var(--color-rack-copy);
  box-shadow: var(--color-panel-shadow);
}

.blog-hero-panel::before {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 0.25rem;
  background: var(--color-accent);
  content: "";
}

.blog-hero-panel .blog-panel-label {
  color: var(--color-rack-muted);
}

.blog-hero-panel ul {
  display: grid;
  gap: 0;
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
}

.blog-hero-panel li {
  display: grid;
  grid-template-columns: 2.5rem 1fr;
  gap: 0.75rem;
  align-items: center;
  padding: 0.85rem 0;
  border-top: 1px solid var(--color-rack-line);
  font-size: 0.9rem;
}

.blog-hero-panel li span {
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.blog-section-heading {
  display: flex;
  gap: 2rem;
  align-items: end;
  justify-content: space-between;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--color-border);
}

.blog-section-heading h2 {
  margin: 0.55rem 0 0;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: clamp(1.65rem, 3vw, 2.25rem);
  line-height: 1.2;
  letter-spacing: -0.015em;
  text-wrap: pretty;
}

.blog-section-heading p {
  max-width: 25rem;
  margin: 0;
  color: var(--color-muted);
  line-height: 1.7;
}

.blog-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin: 1.5rem 0 2rem;
}

.blog-filter-button {
  min-height: 2.5rem;
  padding: 0.55rem 0.9rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xs);
  background: var(--color-surface);
  color: var(--color-muted);
  font: 600 0.88rem/1 var(--font-body);
  cursor: pointer;
  transition:
    border-color 160ms ease,
    background-color 160ms ease,
    color 160ms ease,
    transform 160ms ease;
}

.blog-filter-button:hover {
  border-color: var(--color-border-strong);
  color: var(--color-ink);
  transform: translateY(-1px);
}

.blog-filter-button.is-active {
  border-color: var(--color-accent);
  background: var(--color-accent);
  color: var(--color-ink);
}

.blog-filter-button:focus-visible,
.article-card-link:focus-visible,
.related-card a:focus-visible,
.post-nav-card:focus-visible,
.breadcrumbs a:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

.article-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--color-border);
  border-left: 1px solid var(--color-border);
}

.article-card {
  display: flex;
  min-width: 0;
  min-height: 21rem;
  flex-direction: column;
  padding: clamp(1.25rem, 3vw, 2rem);
  border-right: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
  transition:
    background-color 180ms ease,
    box-shadow 180ms ease;
}

.article-card:hover {
  background: var(--color-surface-soft);
  box-shadow: inset 0 0 0 1px var(--color-border-strong);
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  align-items: center;
  justify-content: flex-start;
  color: var(--color-faint);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  line-height: 1.4;
}

.article-meta .tag {
  display: inline-flex;
  align-items: center;
  min-height: 1.55rem;
  padding: 0.15rem 0.5rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-surface-soft);
  color: var(--color-accent-dark);
  font-family: var(--font-body);
  font-weight: 700;
}

.article-card h3,
.related-card h3 {
  margin: 1.2rem 0 0.85rem;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: 1.25rem;
  line-height: 1.45;
  letter-spacing: -0.01em;
  text-wrap: pretty;
}

.article-card > p,
.related-card > p {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.96rem;
  line-height: 1.75;
}

.article-card-link {
  display: inline-flex;
  width: fit-content;
  margin-top: auto;
  padding-top: 1.5rem;
  color: var(--color-accent-dark);
  font-size: 0.9rem;
  font-weight: 750;
  text-decoration: none;
}

.article-card-link:hover {
  color: var(--color-ink);
}

.blog-empty {
  margin: 0;
  padding: 3rem 1rem;
  border: 1px solid var(--color-border);
  background: var(--color-surface-soft);
  color: var(--color-muted);
  text-align: center;
}

.blog-list-promo .promo-block {
  margin-block: 0;
}

.breadcrumbs {
  max-width: var(--reading-width);
  margin-top: 1.5rem;
  margin-inline: auto;
  padding-top: 0.25rem;
  color: var(--color-faint);
  font-size: 0.86rem;
  line-height: 1.6;
}

.breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.breadcrumbs li {
  display: inline-flex;
  gap: 0.45rem;
  align-items: center;
}

.breadcrumbs li:not(:last-child)::after {
  color: var(--color-border-strong);
  content: "/";
}

.breadcrumbs a {
  color: var(--color-muted);
  text-decoration: none;
}

.breadcrumbs a:hover {
  color: var(--color-accent-dark);
}

.blog-post,
.article-body,
.post-body,
[data-blog-article] {
  width: 100%;
  max-width: 48rem;
  margin-inline: auto;
}

.post-hero {
  max-width: 48rem;
  margin-inline: auto;
  padding-top: 2rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid var(--color-border);
}

.post-hero .article-meta {
  margin-bottom: 1rem;
}

.post-hero h1,
.blog-post h1 {
  margin: 0;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 2.6rem);
  line-height: 1.16;
  letter-spacing: -0.02em;
  text-wrap: pretty;
}

.post-hero > p {
  margin: 1.1rem 0 0;
  color: var(--color-muted);
  font-size: 1.05rem;
  line-height: 1.8;
}

.article-body,
.post-body,
.blog-post {
  color: var(--color-ink);
  font-size: 1rem;
  line-height: 1.85;
}

.post-hero + .article-body,
.post-hero + .post-body,
.post-hero + .blog-post {
  padding-top: 1.5rem;
}

.article-body h2,
.post-body h2,
.blog-post h2 {
  margin: 2.75rem 0 1rem;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 3vw, 1.6rem);
  line-height: 1.35;
  letter-spacing: -0.015em;
  text-wrap: pretty;
}

.article-body h3,
.post-body h3,
.blog-post h3 {
  margin: 2rem 0 0.75rem;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 2vw, 1.3rem);
  line-height: 1.45;
  letter-spacing: -0.01em;
  text-wrap: pretty;
}

.article-body p,
.post-body p,
.blog-post p {
  margin: 0 0 1.25rem;
}

.article-body ul,
.article-body ol,
.post-body ul,
.post-body ol,
.blog-post ul,
.blog-post ol {
  margin: 0 0 1.5rem;
  padding-left: 1.35rem;
}

.article-body li,
.post-body li,
.blog-post li {
  margin-bottom: 0.55rem;
  padding-left: 0.25rem;
}

.article-body a,
.post-body a,
.blog-post a {
  color: var(--color-accent-dark);
  text-underline-offset: 0.2em;
}

.article-body blockquote,
.post-body blockquote,
.blog-post blockquote {
  margin: 1.75rem 0;
  padding: 1rem 1.25rem;
  border-left: 0.25rem solid var(--color-border-strong);
  background: var(--color-surface-soft);
  color: var(--color-muted);
}

.article-body pre,
.post-body pre,
.blog-post pre {
  overflow-x: auto;
  margin: 1.75rem 0;
  padding: 1rem;
  border: 1px solid var(--color-rack-line);
  border-radius: var(--radius-sm);
  background: var(--color-rack);
  color: var(--color-rack-copy);
  font: 0.88rem/1.7 var(--font-mono);
}

.article-body code,
.post-body code,
.blog-post code {
  font-family: var(--font-mono);
}

.article-body :not(pre) > code,
.post-body :not(pre) > code,
.blog-post :not(pre) > code {
  padding: 0.12rem 0.35rem;
  border-radius: var(--radius-xs);
  background: var(--color-surface-deep);
  color: var(--color-accent-dark);
  font-size: 0.9em;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(9rem, 1fr));
  gap: 0.75rem;
  margin: 1.75rem 0;
}

.stat-card {
  min-width: 0;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
}

.stat-num {
  display: block;
  color: var(--color-accent-dark);
  font-family: var(--font-mono);
  font-size: clamp(1.25rem, 4vw, 1.75rem);
  font-weight: 750;
  line-height: 1.25;
}

.stat-label {
  display: block;
  margin-top: 0.4rem;
  color: var(--color-muted);
  font-size: 0.85rem;
  line-height: 1.55;
}

.check-list {
  margin: 1.5rem 0;
  padding: 1rem 1.15rem 1rem 2.4rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface-soft);
}

.check-list li {
  margin-bottom: 0.65rem;
}

.check-list li:last-child {
  margin-bottom: 0;
}

.verdict {
  margin: 1.75rem 0;
  padding: 1rem 1.2rem;
  border-left: 0.3rem solid var(--color-accent);
  background: var(--color-accent-soft);
  color: var(--color-ink);
}

.verdict strong:first-child {
  color: var(--color-accent-dark);
}

.promo-block {
  display: flex;
  gap: 2rem;
  align-items: center;
  justify-content: space-between;
  max-width: 48rem;
  margin: 3rem auto;
  padding: clamp(1.25rem, 4vw, 2rem);
  border: 1px solid var(--color-rack-line);
  border-radius: var(--radius-md);
  background: var(--color-rack);
  color: var(--color-rack-copy);
  box-shadow: var(--color-panel-shadow);
}

.promo-block h2 {
  margin: 0 0 0.55rem;
  color: var(--color-rack-copy);
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 3vw, 1.6rem);
  line-height: 1.35;
  letter-spacing: -0.01em;
  text-wrap: pretty;
}

.promo-block p {
  margin: 0;
  color: var(--color-rack-muted);
  line-height: 1.7;
}

.promo-block .button {
  flex: 0 0 auto;
}

#related-posts {
  width: 100%;
  max-width: 48rem;
  margin: 3.5rem auto 0;
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
}

#related-posts > h2 {
  margin: 0 0 1.25rem;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: 1.5rem;
  line-height: 1.3;
  letter-spacing: -0.01em;
  text-wrap: pretty;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
}

.related-card {
  display: flex;
  min-width: 0;
  flex-direction: column;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
}

.related-card h3 {
  font-size: 1rem;
}

.related-card h3 a {
  color: var(--color-ink);
  text-decoration: none;
}

.related-card h3 a:hover {
  color: var(--color-accent-dark);
}

.related-card > p {
  font-size: 0.88rem;
}

.related-card .article-card-link {
  padding-top: 1rem;
}

#post-nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
  width: 100%;
  max-width: 48rem;
  margin: 1.5rem auto 4rem;
}

#post-nav .post-nav-card:only-child {
  grid-column: 1 / -1;
}

.post-nav-card {
  display: flex;
  min-width: 0;
  min-height: 7rem;
  flex-direction: column;
  gap: 0.55rem;
  justify-content: center;
  padding: 1rem 1.15rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-ink);
  text-decoration: none;
  transition:
    border-color 160ms ease,
    background-color 160ms ease;
}

.post-nav-card:hover {
  border-color: var(--color-accent);
  background: var(--color-surface-soft);
}

.post-nav-label {
  color: var(--color-accent-dark);
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.post-nav-card strong {
  font-size: 0.95rem;
  line-height: 1.55;
  text-wrap: pretty;
}

@media (max-width: 52rem) {
  .blog-hero-inner {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .blog-hero-panel {
    max-width: 34rem;
  }

  .related-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 44rem) {
  .blog-section-heading {
    display: block;
  }

  .blog-section-heading p {
    margin-top: 0.75rem;
  }

  .blog-filter {
    flex-wrap: nowrap;
    margin-inline: calc(var(--gutter) * -1);
    padding-inline: var(--gutter);
    overflow-x: auto;
    scrollbar-width: thin;
  }

  .blog-filter-button {
    flex: 0 0 auto;
  }

  .article-list {
    grid-template-columns: 1fr;
  }

  .article-card {
    min-height: 0;
  }

  .promo-block {
    align-items: flex-start;
    flex-direction: column;
  }

  #post-nav {
    grid-template-columns: 1fr;
  }

  #post-nav .post-nav-card:only-child {
    grid-column: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .blog-filter-button,
  .article-card,
  .post-nav-card {
    transition: none;
  }
}