.blog-index-hero {
  position: relative;
  overflow: hidden;
  border-bottom: var(--border-thin) solid var(--color-border);
}

.blog-index-hero::after {
  position: absolute;
  right: max(var(--gutter), calc((100% - var(--page-width)) / 2));
  bottom: 0;
  width: min(30vw, 22rem);
  height: 0.65rem;
  content: "";
  background: var(--color-accent);
  border-radius: var(--radius-pill) var(--radius-pill) 0 0;
}

.blog-index-hero .wrap {
  max-width: var(--reading-width);
  margin-left: max(var(--gutter), calc((100% - var(--page-width)) / 2));
}

.blog-kicker,
.section-eyebrow {
  margin: 0 0 0.75rem;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.blog-index-hero h1 {
  max-width: 12ch;
  margin: 0;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: clamp(2.7rem, 7vw, 5.7rem);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.045em;
}

.blog-index-intro {
  max-width: 42rem;
  margin: 1.5rem 0 0;
  color: var(--color-text-muted);
  font-size: clamp(1rem, 2vw, 1.2rem);
  line-height: 1.9;
}

.blog-catalog-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

.blog-catalog-heading h2 {
  margin: 0;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
}

.blog-result-count {
  flex: 0 0 auto;
  margin: 0;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.blog-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-bottom: 2rem;
  padding: 0.65rem;
  background: var(--color-panel-soft);
  border: var(--border-thin) solid var(--color-border);
  border-radius: var(--radius-md);
}

.blog-filter-button {
  min-height: 2.65rem;
  padding: 0.6rem 1rem;
  color: var(--color-text-muted);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  background: var(--color-transparent);
  border: var(--border-thin) solid var(--color-transparent);
  border-radius: var(--radius-pill);
}

.blog-filter-button:hover {
  color: var(--color-accent-dark);
  border-color: var(--color-border);
}

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

.blog-filter-button:focus-visible,
.post-card-link:focus-visible,
.post-nav-card:focus-visible,
.dl-fab:focus-visible {
  outline: var(--border-medium) solid var(--color-error);
  outline-offset: 0.2rem;
}

.blog-list-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
}

.post-card,
.related-post-card {
  display: flex;
  min-width: 0;
  flex-direction: column;
  padding: clamp(1.25rem, 3vw, 2rem);
  background: var(--color-panel-soft);
  border: var(--border-medium) solid var(--color-border);
  border-radius: var(--radius-md) var(--radius-md) var(--radius-lg) var(--radius-sm);
}

.post-card:nth-child(3n + 2) {
  background: var(--color-panel);
  border-radius: var(--radius-sm) var(--radius-lg) var(--radius-md) var(--radius-md);
}

.post-card-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.7rem;
  margin-bottom: 1rem;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

.post-card h3,
.related-post-card h3 {
  margin: 0;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 2.4vw, 1.55rem);
  line-height: 1.45;
}

.post-card > p,
.related-post-card > p {
  margin: 0.9rem 0 1.4rem;
  color: var(--color-text-muted);
  line-height: 1.8;
}

.post-card-link {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  gap: 0.25rem;
  margin-top: auto;
  color: var(--color-accent-dark);
  font-weight: 800;
  text-decoration-color: var(--color-border);
  text-decoration-thickness: var(--border-medium);
  text-underline-offset: 0.3rem;
}

.post-card-link:hover {
  color: var(--color-error);
  text-decoration-color: var(--color-error);
}

.post-link-arrow {
  font-family: var(--font-mono);
}

.blog-empty {
  grid-column: 1 / -1;
  margin: 0;
  padding: 2rem;
  color: var(--color-text-muted);
  text-align: center;
  background: var(--color-panel-soft);
  border: var(--border-thin) dashed var(--color-border);
  border-radius: var(--radius-md);
}

.breadcrumb {
  max-width: var(--page-width);
  margin: 1.5rem auto 0;
  padding: 0 var(--gutter);
}

.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  align-items: center;
  margin: 0;
  padding: 0;
  color: var(--color-text-muted);
  font-size: 0.88rem;
  list-style: none;
}

.breadcrumb li:not(:last-child)::after {
  margin-left: 0.45rem;
  color: var(--color-border);
  content: "/";
}

.breadcrumb a {
  color: var(--color-accent);
  text-decoration-color: var(--color-border);
  text-underline-offset: 0.2rem;
}

.article-hero {
  padding-top: clamp(2rem, 6vw, 4.5rem);
  padding-bottom: clamp(2.5rem, 7vw, 5rem);
  border-bottom: var(--border-thin) solid var(--color-border);
}

.article-hero .wrap {
  max-width: var(--reading-width);
}

.article-hero-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 0.82rem;
}

.article-hero h1 {
  margin: 0;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 6vw, 4.5rem);
  font-weight: 900;
  line-height: 1.16;
  letter-spacing: -0.035em;
}

.article-summary {
  margin: 1.5rem 0 0;
  color: var(--color-text-muted);
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  line-height: 1.9;
}

.article-layout {
  max-width: var(--reading-width);
}

.prose {
  color: var(--color-text);
  font-size: 1.02rem;
  line-height: 1.95;
}

.prose h2 {
  margin: 3.25rem 0 1.15rem;
  padding-bottom: 0.65rem;
  color: var(--color-accent-dark);
  font-family: var(--font-display);
  font-size: clamp(1.65rem, 4vw, 2.25rem);
  line-height: 1.35;
  border-bottom: var(--border-medium) solid var(--color-border);
}

.prose h3 {
  margin: 2.25rem 0 0.8rem;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 3vw, 1.55rem);
  line-height: 1.45;
}

.prose p,
.prose ul,
.prose ol,
.prose blockquote,
.prose pre {
  margin-top: 1rem;
  margin-bottom: 1rem;
}

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

.prose li + li {
  margin-top: 0.45rem;
}

.prose a {
  color: var(--color-accent);
  text-decoration-color: var(--color-border);
  text-decoration-thickness: var(--border-medium);
  text-underline-offset: 0.22rem;
}

.prose code {
  padding: 0.12em 0.35em;
  color: var(--color-accent-dark);
  font-family: var(--font-mono);
  font-size: 0.9em;
  background: var(--color-panel-soft);
  border: var(--border-thin) solid var(--color-border);
  border-radius: var(--radius-xs);
}

.prose pre {
  max-width: 100%;
  overflow-x: auto;
  padding: 1.2rem;
  color: var(--color-text);
  background: var(--color-panel-soft);
  border: var(--border-medium) solid var(--color-border);
  border-radius: var(--radius-sm);
}

.prose pre code {
  padding: 0;
  color: inherit;
  background: var(--color-transparent);
  border: 0;
  border-radius: 0;
}

.prose blockquote {
  margin-right: 0;
  margin-left: 0;
  padding: 1rem 1.25rem;
  color: var(--color-text-muted);
  background: var(--color-panel-soft);
  border-left: 0.35rem solid var(--color-accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.prose img {
  max-width: 100%;
  height: auto;
  border: var(--border-medium) solid var(--color-border);
  border-radius: var(--radius-md);
}

.download-cta-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  margin-top: 3.5rem;
  padding: clamp(1.4rem, 4vw, 2.4rem);
  background: var(--color-panel);
  border: var(--border-heavy) solid var(--color-accent);
  border-radius: var(--radius-lg) var(--radius-sm) var(--radius-lg) var(--radius-md);
}

.download-cta-card h2 {
  margin: 0;
  color: var(--color-accent-dark);
  font-family: var(--font-display);
  font-size: clamp(1.45rem, 3vw, 2rem);
}

.download-cta-card p {
  max-width: 38rem;
  margin: 0.75rem 0 0;
  color: var(--color-text-muted);
  line-height: 1.75;
}

.download-cta-card .button-row {
  flex: 0 0 auto;
}

.related-posts {
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: var(--border-medium) solid var(--color-border);
}

.related-posts > h2 {
  margin: 0 0 1.5rem;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: clamp(1.55rem, 3vw, 2.1rem);
}

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

.related-post-card {
  padding: 1.25rem;
}

.related-post-card h3 {
  font-size: 1.1rem;
}

.related-post-card > p {
  font-size: 0.92rem;
}

.post-navigation {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 2rem;
}

.post-nav-card {
  display: flex;
  min-width: 0;
  flex-direction: column;
  gap: 0.5rem;
  padding: 1.25rem;
  color: var(--color-text);
  text-decoration: none;
  background: var(--color-panel-soft);
  border: var(--border-medium) solid var(--color-border);
  border-radius: var(--radius-md);
}

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

.post-nav-direction {
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

.post-nav-card strong {
  line-height: 1.55;
}

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

.dl-fab {
  position: fixed;
  right: max(1rem, var(--gutter));
  bottom: max(1rem, var(--gutter));
  z-index: 20;
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  min-height: 3rem;
  padding: 0.65rem 1rem;
  color: var(--color-white);
  font-weight: 800;
  text-decoration: none;
  background: var(--color-error);
  border: var(--border-medium) solid var(--color-accent-dark);
  border-radius: var(--radius-pill);
}

.dl-fab:hover {
  background: var(--color-accent-dark);
}

.dl-fab-icon {
  display: inline-flex;
  width: 1.3rem;
  height: 1.3rem;
}

.dl-fab-icon svg {
  width: 100%;
  height: 100%;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2;
}

@media (max-width: 880px) {
  .blog-list-grid {
    grid-template-columns: 1fr;
  }

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

  .download-cta-card {
    align-items: stretch;
    flex-direction: column;
  }

  .download-cta-card .button-row {
    flex: 1 1 auto;
  }
}

@media (max-width: 640px) {
  .blog-index-hero .wrap {
    margin-left: auto;
  }

  .blog-index-hero::after {
    right: var(--gutter);
    width: 35vw;
  }

  .blog-catalog-heading {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.5rem;
  }

  .blog-filter {
    flex-wrap: nowrap;
    margin-right: calc(var(--gutter) * -1);
    margin-left: calc(var(--gutter) * -1);
    padding-right: var(--gutter);
    padding-left: var(--gutter);
    overflow-x: auto;
    border-right: 0;
    border-left: 0;
    border-radius: 0;
  }

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

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

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

  .dl-fab {
    right: 0.75rem;
    bottom: 0.75rem;
  }
}

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