.blog-hero {
  position: relative;
  overflow: hidden;
  border-bottom: var(--border-heavy) solid var(--color-border);
  background:
    linear-gradient(var(--color-grid) var(--border-fine), var(--color-clear) var(--border-fine)),
    linear-gradient(90deg, var(--color-grid) var(--border-fine), var(--color-clear) var(--border-fine)),
    var(--color-bg);
  background-size: 34px 34px;
}

.blog-hero::after {
  position: absolute;
  right: -8%;
  bottom: -42%;
  width: 48%;
  aspect-ratio: 1;
  border: var(--border-heavy) solid var(--color-border-soft);
  background: var(--color-panel-dark);
  box-shadow: var(--shadow-hard);
  content: "";
  transform: rotate(12deg);
  pointer-events: none;
}

.blog-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(260px, 0.55fr);
  gap: clamp(1.5rem, 4vw, 4rem);
  align-items: end;
  min-height: clamp(420px, 62vh, 650px);
  padding-block: clamp(4rem, 9vw, 8rem);
}

.blog-hero-main {
  min-width: 0;
}

.blog-hero-main h1 {
  max-width: 13ch;
  margin: 0.35em 0 0.32em;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: clamp(3rem, 7.8vw, 7.4rem);
  font-weight: 900;
  letter-spacing: -0.065em;
  line-height: 0.92;
  text-wrap: balance;
}

.blog-hero-main p {
  max-width: 46rem;
  margin: 0;
  color: var(--color-text-muted);
  font-family: var(--font-body);
  font-size: clamp(1rem, 1.4vw, 1.2rem);
  line-height: 1.8;
}

.blog-hero-status {
  min-width: 0;
  padding: clamp(1.2rem, 2.5vw, 2rem);
  border: var(--border-heavy) solid var(--color-border);
  background: var(--color-panel);
  box-shadow: var(--shadow-hard);
}

.blog-status-code {
  display: block;
  margin-bottom: 1rem;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.blog-hero-status strong {
  display: block;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: 1.25rem;
}

.blog-hero-status ul {
  display: grid;
  gap: 0.7rem;
  margin: 1.25rem 0 0;
  padding: 1.25rem 0 0;
  border-top: var(--border-fine) solid var(--color-border-soft);
  color: var(--color-text-muted);
  font-family: var(--font-body);
  list-style: none;
}

.blog-hero-status li {
  position: relative;
  padding-left: 1.15rem;
}

.blog-hero-status li::before {
  position: absolute;
  top: 0.62em;
  left: 0;
  width: 0.45rem;
  height: 0.45rem;
  background: var(--color-accent);
  content: "";
}

.blog-index-section {
  background: var(--color-bg);
}

.blog-filter {
  display: flex;
  gap: 0.75rem;
  overflow-x: auto;
  margin: 2rem 0 2.5rem;
  padding: 0 0.4rem 0.65rem 0;
  scrollbar-color: var(--color-border) var(--color-bg-deep);
}

.blog-filter-button {
  flex: 0 0 auto;
  min-height: 2.8rem;
  padding: 0.65rem 1rem;
  border: var(--border-heavy) solid var(--color-border);
  background: var(--color-panel-dark);
  color: var(--color-text-muted);
  box-shadow: var(--shadow-small);
  font-family: var(--font-body);
  font-size: 0.92rem;
  font-weight: 700;
  cursor: pointer;
}

.blog-filter-button:hover,
.blog-filter-button:focus-visible {
  border-color: var(--color-text);
  color: var(--color-text);
}

.blog-filter-button.is-active {
  border-color: var(--color-accent);
  background: var(--color-accent);
  color: var(--color-bg-deep);
  box-shadow: 4px 4px 0 var(--color-accent-dark);
}

.post-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(1.2rem, 2.5vw, 2rem);
}

.post-card {
  display: grid;
  grid-template-rows: auto 1fr auto;
  min-width: 0;
  min-height: 21rem;
  padding: clamp(1.25rem, 2.5vw, 2rem);
  border: var(--border-heavy) solid var(--color-border);
  background: var(--color-panel);
  box-shadow: var(--shadow-hard);
  transition:
    transform 160ms ease,
    border-color 160ms ease;
}

.post-card:hover {
  border-color: var(--color-text);
  transform: translate(-2px, -2px);
}

.post-card-meta,
.related-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  align-items: center;
  margin-bottom: 1.4rem;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

.post-card-content h3 {
  margin: 0 0 1rem;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 2.2vw, 2rem);
  line-height: 1.25;
  text-wrap: balance;
}

.post-card-content p {
  margin: 0;
  color: var(--color-text-muted);
  line-height: 1.8;
}

.post-card-link {
  align-self: end;
  width: fit-content;
  margin-top: 2rem;
  padding-bottom: 0.25rem;
  border-bottom: var(--border-heavy) solid var(--color-accent);
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-weight: 700;
  text-decoration: none;
}

.post-card-link:hover,
.post-card-link:focus-visible {
  color: var(--color-text);
  border-color: var(--color-text);
}

.blog-empty {
  padding: 2rem;
  border: var(--border-heavy) solid var(--color-border);
  background: var(--color-panel-dark);
  color: var(--color-text-muted);
  text-align: center;
}

.breadcrumbs {
  margin-top: max(1.2rem, 3vw);
  margin-bottom: 1.5rem;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 0.82rem;
}

.breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.breadcrumbs li {
  display: inline-flex;
  gap: 0.5rem;
  align-items: center;
}

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

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

.breadcrumbs a:hover,
.breadcrumbs a:focus-visible {
  color: var(--color-accent);
}

.article-hero {
  padding-block: clamp(2rem, 6vw, 5rem);
  border-bottom: var(--border-heavy) solid var(--color-border);
  background: var(--color-panel-dark);
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  align-items: center;
  margin-bottom: 1.5rem;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 0.82rem;
}

.article-hero h1 {
  max-width: 18ch;
  margin: 0;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 5.8rem);
  font-weight: 900;
  letter-spacing: -0.045em;
  line-height: 1;
  text-wrap: balance;
}

.article-lead {
  max-width: 52rem;
  margin: 1.75rem 0 0;
  color: var(--color-text-muted);
  font-size: clamp(1.05rem, 1.7vw, 1.3rem);
  line-height: 1.8;
}

.article-wrap {
  padding-block: clamp(3rem, 7vw, 6rem);
}

.prose {
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 1.04rem;
  line-height: 1.9;
}

.prose h2 {
  margin: 3.5rem 0 1.25rem;
  padding: 0.8rem 0 0.8rem 1rem;
  border-left: 0.55rem solid var(--color-accent);
  border-bottom: var(--border-fine) solid var(--color-border-soft);
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3.3vw, 2.65rem);
  line-height: 1.2;
}

.prose h3 {
  margin: 2.4rem 0 1rem;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.2vw, 1.65rem);
  line-height: 1.35;
}

.prose p,
.prose ul,
.prose ol,
.prose blockquote {
  margin-block: 1.2rem;
}

.prose ul,
.prose ol {
  padding-left: 1.5rem;
}

.prose li + li {
  margin-top: 0.55rem;
}

.prose a {
  color: var(--color-accent);
  text-decoration-thickness: var(--border-fine);
  text-underline-offset: 0.2em;
}

.prose strong {
  color: var(--color-text);
}

.prose blockquote {
  padding: 1.2rem 1.4rem;
  border-left: 0.55rem solid var(--color-warn);
  background: var(--color-panel-dark);
  color: var(--color-text-muted);
}

.prose pre {
  overflow-x: auto;
  margin-block: 1.6rem;
  padding: 1.4rem;
  border: var(--border-heavy) solid var(--color-border);
  background: var(--color-bg-deep);
  box-shadow: var(--shadow-small);
  color: var(--color-text);
  font-family: var(--font-mono);
  line-height: 1.65;
}

.prose :not(pre) > code {
  padding: 0.12em 0.35em;
  border: var(--border-fine) solid var(--color-border-soft);
  background: var(--color-bg-deep);
  color: var(--color-accent);
  font-family: var(--font-mono);
}

.prose .table-wrap,
.prose > .data-table {
  overflow-x: auto;
  max-width: 100%;
  margin-block: 1.6rem;
}

.download-guide-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 2rem;
  align-items: center;
  margin-top: clamp(3rem, 7vw, 6rem);
  padding: clamp(1.5rem, 4vw, 3rem);
  border: var(--border-heavy) solid var(--color-accent);
  background: var(--color-panel);
  box-shadow: 7px 7px 0 var(--color-accent-dark);
}

.download-guide-card h2 {
  margin: 0 0 0.7rem;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3vw, 2.5rem);
}

.download-guide-card p {
  max-width: 44rem;
  margin: 0;
  color: var(--color-text-muted);
  line-height: 1.75;
}

.download-guide-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  justify-content: flex-end;
}

#related-posts {
  margin-top: clamp(4rem, 9vw, 7rem);
  padding-top: clamp(2rem, 5vw, 4rem);
  border-top: var(--border-heavy) solid var(--color-border);
}

.related-heading {
  margin-bottom: 1.7rem;
}

.related-heading h2 {
  margin: 0.35rem 0 0;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 3rem);
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.25rem;
}

.related-card {
  min-width: 0;
  padding: 1.4rem;
  border: var(--border-heavy) solid var(--color-border);
  background: var(--color-panel-dark);
  box-shadow: var(--shadow-small);
}

.related-card h3 {
  margin: 0 0 0.8rem;
  font-family: var(--font-display);
  font-size: 1.15rem;
  line-height: 1.4;
}

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

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

.related-card p {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.94rem;
  line-height: 1.7;
}

#post-nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
  margin-top: 2.5rem;
}

.post-nav-card {
  display: flex;
  min-width: 0;
  min-height: 8rem;
  flex-direction: column;
  gap: 0.8rem;
  justify-content: center;
  padding: 1.3rem;
  border: var(--border-heavy) solid var(--color-border);
  background: var(--color-panel);
  color: var(--color-text);
  box-shadow: var(--shadow-small);
  text-decoration: none;
}

.post-nav-card:hover,
.post-nav-card:focus-visible {
  border-color: var(--color-accent);
}

.post-nav-next {
  text-align: right;
}

.post-nav-next:only-child {
  grid-column: 2;
}

.post-nav-label {
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
}

.post-nav-card strong {
  font-family: var(--font-display);
  line-height: 1.45;
}

.dl-fab {
  position: fixed;
  z-index: 20;
  right: var(--gutter);
  bottom: var(--gutter);
  display: inline-flex;
  gap: 0.65rem;
  align-items: center;
  padding: 0.8rem 1rem;
  border: var(--border-heavy) solid var(--color-accent-dark);
  background: var(--color-accent);
  color: var(--color-bg-deep);
  box-shadow: 5px 5px 0 var(--color-accent-dark);
  font-family: var(--font-body);
  font-weight: 800;
  text-decoration: none;
}

.dl-fab:hover,
.dl-fab:focus-visible {
  border-color: var(--color-text);
  box-shadow: 5px 5px 0 var(--color-text);
}

.dl-fab-icon {
  display: inline-flex;
  width: 1.25rem;
  height: 1.25rem;
}

.dl-fab-icon svg {
  width: 100%;
  height: 100%;
}

@media (max-width: 860px) {
  .blog-hero-grid,
  .download-guide-card {
    grid-template-columns: 1fr;
  }

  .blog-hero-grid {
    align-items: stretch;
  }

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

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

  .download-guide-actions {
    justify-content: flex-start;
  }
}

@media (max-width: 620px) {
  .blog-hero::after {
    display: none;
  }

  .blog-hero-grid {
    min-height: auto;
  }

  .blog-hero-main h1 {
    font-size: clamp(2.65rem, 15vw, 4.5rem);
  }

  .post-list {
    gap: 1.3rem;
  }

  .post-card {
    min-height: auto;
  }

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

  .post-nav-next,
  .post-nav-next:only-child {
    grid-column: 1;
    text-align: left;
  }

  .dl-fab {
    right: var(--gutter);
    bottom: var(--gutter);
  }

  .dl-fab span:last-child {
    display: none;
  }
}

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

  .post-card:hover {
    transform: none;
  }
}