.blog-hero {
  position: relative;
  overflow: hidden;
  min-height: 30rem;
  display: flex;
  align-items: flex-end;
  padding: calc(var(--header-height) + 5rem) 0 5rem;
  border-bottom: var(--line-medium) solid var(--color-accent-dark);
  background-color: var(--color-panel-alt);
  background-image:
    linear-gradient(var(--color-grid-line) var(--line-thin), transparent var(--line-thin)),
    linear-gradient(90deg, var(--color-grid-line) var(--line-thin), transparent var(--line-thin));
  background-size: 3rem 3rem;
}

.blog-hero::after {
  position: absolute;
  right: 0;
  bottom: 3.5rem;
  width: 38%;
  height: 1rem;
  content: "";
  border-top: var(--line-heavy) dotted var(--color-warn);
  border-bottom: var(--line-heavy) dotted var(--color-warn);
  opacity: 0.9;
}

.blog-hero .wrap {
  position: relative;
  z-index: 1;
}

.blog-hero h1 {
  max-width: 13ch;
  margin: 0;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 7.5rem);
  font-weight: 900;
  line-height: 0.98;
  letter-spacing: -0.055em;
}

.blog-hero-lead {
  max-width: 46rem;
  margin: 2rem 0 0;
  color: var(--color-text-muted);
  font-size: 1.125rem;
  line-height: 1.8;
}

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

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

.blog-index-heading h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 4rem);
  line-height: 1.1;
}

.blog-result-count {
  margin: 0;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  white-space: nowrap;
}

.blog-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-bottom: 2.5rem;
}

.blog-filter-button {
  min-height: 2.75rem;
  padding: 0.65rem 1rem;
  border: var(--line-thin) solid var(--color-border);
  border-radius: var(--radius-small);
  background: var(--color-panel);
  color: var(--color-accent-dark);
  font: 700 0.9rem/1 var(--font-body);
  cursor: pointer;
}

.blog-filter-button:hover,
.blog-filter-button:focus-visible {
  border-color: var(--color-accent);
  background: var(--color-panel-alt);
}

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

.post-list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  border-top: var(--line-medium) solid var(--color-accent-dark);
}

.post-card {
  position: relative;
  display: grid;
  grid-template-columns: minmax(9rem, 0.28fr) minmax(0, 1fr) auto;
  grid-template-areas:
    "meta title link"
    "meta summary link";
  gap: 0.75rem 2rem;
  align-items: center;
  min-height: 12rem;
  padding: 2rem;
  border-right: var(--line-thin) solid var(--color-border);
  border-bottom: var(--line-thin) solid var(--color-border);
  border-left: var(--line-thin) solid var(--color-border);
  background: var(--color-panel);
}

.post-card::before {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 0.4rem;
  content: "";
  background: var(--color-accent);
}

.post-card:hover::before,
.post-card:focus-within::before {
  background: var(--color-warn);
}

.post-card-meta {
  grid-area: meta;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.8rem;
}

.post-card time,
.related-card time {
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 1.75rem;
  padding: 0.3rem 0.65rem;
  border: var(--line-thin) solid var(--color-accent);
  border-radius: var(--radius-pill);
  background: var(--color-panel-alt);
  color: var(--color-accent-dark);
  font-size: 0.78rem;
  font-weight: 800;
  line-height: 1;
}

.post-card h3 {
  grid-area: title;
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 2.4vw, 2rem);
  line-height: 1.35;
}

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

.post-card h3 a:hover,
.post-card h3 a:focus-visible {
  color: var(--color-accent);
  text-decoration: underline;
  text-decoration-color: var(--color-warn);
  text-underline-offset: 0.22em;
}

.post-card p {
  grid-area: summary;
  max-width: 48rem;
  margin: 0;
  color: var(--color-text-muted);
  line-height: 1.75;
}

.post-read-link {
  grid-area: link;
  align-self: stretch;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 7.5rem;
  padding: 1rem;
  border-left: var(--line-thin) solid var(--color-border);
  color: var(--color-accent-dark);
  font-weight: 800;
  text-decoration: none;
}

.post-read-link::after {
  margin-left: 0.5rem;
  content: "→";
  color: var(--color-warn);
  font-family: var(--font-mono);
}

.post-read-link:hover,
.post-read-link:focus-visible {
  background: var(--color-panel-alt);
  color: var(--color-accent-dark);
}

.blog-empty {
  margin: 0;
  padding: 3rem 2rem;
  border: var(--line-thin) solid var(--color-border);
  background: var(--color-panel);
  color: var(--color-text-muted);
  text-align: center;
}

.breadcrumb-wrap {
  margin-top: 1.5rem;
  padding-top: 1.5rem;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  align-items: center;
  color: var(--color-text-muted);
  font-size: 0.88rem;
}

.breadcrumb a {
  color: var(--color-accent-dark);
  text-decoration: none;
}

.breadcrumb a:hover,
.breadcrumb a:focus-visible {
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

.breadcrumb-separator {
  color: var(--color-border);
  font-family: var(--font-mono);
}

.article-hero {
  padding: 3rem 0 4rem;
  border-bottom: var(--line-medium) solid var(--color-border);
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem 1rem;
  align-items: center;
  margin-bottom: 1.5rem;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.article-hero h1 {
  max-width: 21ch;
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 5.5rem);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.045em;
}

.article-summary {
  max-width: 50rem;
  margin: 1.75rem 0 0;
  color: var(--color-text-muted);
  font-size: 1.15rem;
  line-height: 1.85;
}

.reading-wrap {
  width: min(calc(100% - (var(--gutter) * 2)), var(--reading-width));
  margin-inline: auto;
}

.prose {
  padding-top: 4rem;
  padding-bottom: 4rem;
  color: var(--color-text);
  font-size: 1.05rem;
  line-height: 1.9;
}

.prose h2 {
  margin: 4rem 0 1.25rem;
  padding-top: 1rem;
  border-top: var(--line-medium) solid var(--color-accent);
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  line-height: 1.25;
}

.prose h2:first-child {
  margin-top: 0;
}

.prose h3 {
  margin: 2.5rem 0 1rem;
  color: var(--color-accent-dark);
  font-family: var(--font-display);
  font-size: 1.4rem;
  line-height: 1.4;
}

.prose p,
.prose ul,
.prose ol,
.prose blockquote,
.prose pre {
  margin-top: 0;
  margin-bottom: 1.5rem;
}

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

.prose li + li {
  margin-top: 0.6rem;
}

.prose a {
  color: var(--color-accent-dark);
  text-decoration-color: var(--color-warn);
  text-underline-offset: 0.2em;
}

.prose code {
  padding: 0.15em 0.35em;
  border: var(--line-thin) solid var(--color-border);
  background: var(--color-panel-alt);
  color: var(--color-accent-dark);
  font-family: var(--font-mono);
  font-size: 0.9em;
}

.prose pre {
  overflow-x: auto;
  padding: 1.4rem;
  border: var(--line-medium) solid var(--color-accent-dark);
  background: var(--color-text);
  color: var(--color-panel);
}

.prose pre code {
  padding: 0;
  border: 0;
  background: transparent;
  color: inherit;
}

.prose blockquote {
  margin-inline: 0;
  padding: 1.2rem 1.5rem;
  border-left: 0.45rem solid var(--color-warn);
  background: var(--color-panel-alt);
  color: var(--color-text-muted);
}

.article-download {
  margin-top: 4rem;
  padding: clamp(1.5rem, 5vw, 3rem);
  border: var(--line-medium) solid var(--color-accent-dark);
  background: var(--color-panel-alt);
}

.article-download h2 {
  margin-top: 0;
  border-top: 0;
  padding-top: 0;
}

.article-download p {
  max-width: 42rem;
}

#related-posts {
  width: min(calc(100% - (var(--gutter) * 2)), var(--content-width));
  margin: 0 auto;
  padding: 4rem 0;
  border-top: var(--line-medium) solid var(--color-accent-dark);
}

.related-heading {
  margin-bottom: 2rem;
}

.related-heading h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.5rem);
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: var(--line-thin) solid var(--color-border);
  border-left: var(--line-thin) solid var(--color-border);
}

.related-card {
  min-width: 0;
  padding: 1.5rem;
  border-right: var(--line-thin) solid var(--color-border);
  border-bottom: var(--line-thin) solid var(--color-border);
  background: var(--color-panel);
}

.related-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  align-items: center;
  margin-bottom: 1.25rem;
}

.related-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.25rem;
  line-height: 1.45;
}

.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);
  text-decoration: underline;
  text-decoration-color: var(--color-warn);
  text-underline-offset: 0.2em;
}

.related-card p {
  margin: 1rem 0 0;
  color: var(--color-text-muted);
  line-height: 1.7;
}

.post-navigation {
  width: min(calc(100% - (var(--gutter) * 2)), var(--content-width));
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 0 auto var(--section-space);
  border-top: var(--line-medium) solid var(--color-accent-dark);
  border-left: var(--line-thin) solid var(--color-border);
}

.post-nav-link {
  display: flex;
  min-height: 9rem;
  flex-direction: column;
  justify-content: center;
  gap: 0.7rem;
  padding: 1.5rem;
  border-right: var(--line-thin) solid var(--color-border);
  border-bottom: var(--line-thin) solid var(--color-border);
  background: var(--color-panel);
  color: var(--color-text);
  text-decoration: none;
}

.post-nav-link:hover,
.post-nav-link:focus-visible {
  background: var(--color-panel-alt);
}

.post-nav-direction {
  color: var(--color-warn);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.post-nav-link strong {
  font-family: var(--font-display);
  font-size: 1.1rem;
  line-height: 1.45;
}

.post-nav-next {
  grid-column: 2;
  text-align: right;
}

.dl-fab {
  position: fixed;
  right: var(--gutter);
  bottom: 1.25rem;
  z-index: 20;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  min-height: 3rem;
  padding: 0.7rem 1rem;
  border: var(--line-medium) solid var(--color-accent-dark);
  border-radius: var(--radius-small);
  background: var(--color-warn);
  color: var(--color-white);
  font-weight: 800;
  text-decoration: none;
}

.dl-fab:hover,
.dl-fab:focus-visible {
  background: var(--color-error);
}

.dl-fab-icon {
  font-family: var(--font-mono);
  font-size: 1.1rem;
}

@media (max-width: 860px) {
  .blog-hero {
    min-height: 26rem;
  }

  .blog-hero::after {
    width: 55%;
  }

  .post-card {
    grid-template-columns: 1fr auto;
    grid-template-areas:
      "meta meta"
      "title title"
      "summary summary"
      "link link";
    padding: 1.5rem;
  }

  .post-read-link {
    justify-content: flex-start;
    min-width: 0;
    padding: 1rem 0 0;
    border-top: var(--line-thin) solid var(--color-border);
    border-left: 0;
  }

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

@media (max-width: 620px) {
  .blog-hero {
    min-height: 23rem;
    padding-bottom: 3rem;
  }

  .blog-hero::after {
    bottom: 1.5rem;
    width: 70%;
  }

  .blog-index-heading {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.75rem;
  }

  .blog-filter {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .blog-filter-button {
    width: 100%;
  }

  .post-card-meta {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
  }

  .article-hero {
    padding-top: 2rem;
  }

  .prose {
    padding-top: 3rem;
  }

  .related-grid {
    border-top: var(--line-thin) solid var(--color-border);
  }

  .post-navigation {
    grid-template-columns: 1fr;
  }

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

  .dl-fab {
    right: 1rem;
    bottom: 1rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .blog-filter-button,
  .post-card,
  .post-read-link,
  .related-card,
  .post-nav-link,
  .dl-fab {
    transition: none;
  }
}