.blog-hero {
  padding-bottom: clamp(3rem, 7vw, 6rem);
}

.blog-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.55rem;
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

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

.blog-breadcrumb a:hover {
  color: var(--color-primary);
}

.blog-hero-copy {
  max-width: 900px;
  padding-top: clamp(3.5rem, 8vw, 7rem);
}

.blog-eyebrow,
.blog-section-kicker {
  margin: 0 0 1rem;
  color: var(--color-primary);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.blog-hero h1 {
  max-width: 850px;
  margin: 0;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 7vw, 4.5rem);
  font-weight: 900;
  letter-spacing: -0.055em;
  line-height: 0.98;
}

.blog-hero-copy > p:last-child {
  max-width: 680px;
  margin: 1.75rem 0 0;
  color: var(--color-text-muted);
  font-size: clamp(1rem, 2vw, 1.18rem);
  line-height: 1.85;
}

.blog-index-section {
  padding-top: 0;
}

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

.blog-list-heading h2 {
  margin: 0;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.2rem);
  letter-spacing: -0.04em;
}

.blog-list-count {
  margin: 0 0 0.35rem;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 0.82rem;
}

.blog-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-bottom: 2rem;
}

.blog-filter-button {
  min-height: 2.75rem;
  padding: 0.7rem 1.1rem;
  border: 0;
  border-radius: var(--radius-pill);
  background: var(--color-panel-muted);
  color: var(--color-text-muted);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  transition:
    transform 180ms ease,
    background-color 180ms ease,
    color 180ms ease,
    box-shadow 180ms ease;
}

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

.blog-filter-button.is-active {
  background: var(--color-primary);
  color: var(--color-panel);
  box-shadow: var(--shadow-button);
}

.blog-filter-button:focus-visible,
.article-card:focus-visible,
.related-post-card:focus-visible,
.post-nav-card:focus-visible,
.blog-breadcrumb a:focus-visible {
  outline: 3px solid var(--color-primary-soft);
  outline-offset: 3px;
}

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

.article-card {
  display: flex;
  min-width: 0;
  min-height: 330px;
  flex-direction: column;
  padding: clamp(1.5rem, 3vw, 2.2rem);
  border-radius: var(--radius-card);
  background: var(--color-panel);
  box-shadow: var(--shadow-card);
  color: var(--color-text);
  text-decoration: none;
  transition:
    transform 200ms ease,
    box-shadow 200ms ease;
}

.article-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-window);
}

.article-card-meta,
.related-post-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 0.76rem;
}

.article-card-title {
  margin: 1.35rem 0 0;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: clamp(1.28rem, 2.4vw, 1.7rem);
  line-height: 1.38;
  letter-spacing: -0.025em;
}

.article-card-summary {
  margin: 1rem 0 0;
  color: var(--color-text-muted);
  line-height: 1.8;
}

.article-card-more {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  margin-top: auto;
  padding-top: 1.5rem;
  color: var(--color-primary);
  font-weight: 800;
}

.article-card-arrow {
  transition: transform 180ms ease;
}

.article-card:hover .article-card-arrow {
  transform: translateX(0.25rem);
}

.blog-empty {
  grid-column: 1 / -1;
  margin: 0;
  padding: 3rem 1.5rem;
  border-radius: var(--radius-card);
  background: var(--color-panel);
  color: var(--color-text-muted);
  text-align: center;
}

/* Article page */
.article-page {
  padding-bottom: var(--section-space);
}

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

.article-header {
  max-width: 980px;
  padding: clamp(3rem, 7vw, 6rem) 0 clamp(2.5rem, 5vw, 4.5rem);
}

.article-header-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.8rem;
  margin-bottom: 1.4rem;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

.article-header h1,
.article-hero h1 {
  margin: 0;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 2.6rem);
  font-weight: 900;
  letter-spacing: -0.05em;
  line-height: 1.08;
}

.article-lead {
  max-width: 780px;
  margin: 1.6rem 0 0;
  color: var(--color-text-muted);
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  line-height: 1.85;
}

.article-layout {
  display: grid;
  grid-template-columns: minmax(0, var(--reading-width)) minmax(210px, 280px);
  justify-content: space-between;
  align-items: start;
  gap: clamp(2rem, 6vw, 5rem);
}

.article-content {
  min-width: 0;
}

.article-sidebar {
  position: sticky;
  top: calc(var(--header-height) + 1.5rem);
}

.article-sidebar .toc {
  display: grid;
  gap: 0.35rem;
  padding: 1.1rem;
  border-radius: var(--radius-control);
  background: var(--color-panel);
  box-shadow: var(--shadow-card);
}

.article-sidebar .toc a {
  padding: 0.7rem 0.8rem;
  border-radius: var(--radius-small);
  color: var(--color-text-muted);
  font-size: 0.9rem;
  line-height: 1.5;
  text-decoration: none;
}

.article-sidebar .toc a:hover {
  background: var(--color-panel-muted);
  color: var(--color-primary);
}

.prose {
  color: var(--color-text);
  font-size: 1.02rem;
  line-height: 1.9;
}

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

.prose h2 {
  margin: 3.6rem 0 1.25rem;
  scroll-margin-top: calc(var(--header-height) + 1.5rem);
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3vw, 2.45rem);
  letter-spacing: -0.035em;
  line-height: 1.25;
}

.prose h3 {
  margin: 2.4rem 0 1rem;
  scroll-margin-top: calc(var(--header-height) + 1.5rem);
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 2vw, 1.65rem);
  letter-spacing: -0.02em;
}

.prose p,
.prose ul,
.prose ol,
.prose table,
.prose pre,
.prose blockquote {
  margin-top: 1.1rem;
  margin-bottom: 1.1rem;
}

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

.prose a {
  color: var(--color-primary);
  text-underline-offset: 0.2em;
}

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

.prose code {
  border-radius: var(--radius-small);
  background: var(--color-panel-muted);
  color: var(--color-primary-dark);
  font-family: var(--font-mono);
}

.prose pre {
  overflow-x: auto;
  padding: 1.4rem;
  border-radius: var(--radius-control);
  background: var(--color-panel-muted);
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 0.88rem;
  line-height: 1.7;
}

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

.prose blockquote {
  margin-inline: 0;
  padding: 0.25rem 0 0.25rem 1.25rem;
  border-left: 4px solid var(--color-primary);
  color: var(--color-text-muted);
}

.download-guide-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  margin-top: clamp(3.5rem, 7vw, 6rem);
  padding: clamp(1.5rem, 4vw, 2.5rem);
  border-radius: var(--radius-card);
  background: var(--color-panel-muted);
}

.download-guide-card h2 {
  margin: 0;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  letter-spacing: -0.03em;
}

.download-guide-card p {
  max-width: 620px;
  margin: 0.65rem 0 0;
  color: var(--color-text-muted);
  line-height: 1.75;
}

.related-section {
  margin-top: clamp(4rem, 8vw, 7rem);
}

.related-section > h2,
.post-nav-section > h2 {
  margin: 0 0 1.5rem;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3vw, 2.4rem);
  letter-spacing: -0.035em;
}

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

.related-post-card {
  display: flex;
  min-width: 0;
  flex-direction: column;
  padding: 1.5rem;
  border-radius: var(--radius-card);
  background: var(--color-panel);
  box-shadow: var(--shadow-card);
  color: var(--color-text);
  text-decoration: none;
  transition: transform 180ms ease;
}

.related-post-card:hover {
  transform: translateY(-3px);
}

.related-post-card h3 {
  margin: 1rem 0 0;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: 1.12rem;
  line-height: 1.5;
}

.related-post-card p {
  margin: 0.8rem 0 0;
  color: var(--color-text-muted);
  font-size: 0.92rem;
  line-height: 1.7;
}

.related-post-more {
  margin-top: auto;
  padding-top: 1.2rem;
  color: var(--color-primary);
  font-size: 0.9rem;
  font-weight: 800;
}

.post-nav-section {
  margin-top: clamp(3rem, 6vw, 5rem);
}

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

#post-nav.has-single-link .post-nav-card-next {
  grid-column: 2;
}

.post-nav-card {
  display: flex;
  min-width: 0;
  flex-direction: column;
  gap: 0.7rem;
  padding: 1.5rem;
  border-radius: var(--radius-card);
  background: var(--color-panel);
  box-shadow: var(--shadow-card);
  color: var(--color-text);
  text-decoration: none;
  transition:
    transform 180ms ease,
    box-shadow 180ms ease;
}

.post-nav-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-window);
}

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

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

.post-nav-title {
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 800;
  line-height: 1.5;
}

.dl-fab {
  position: fixed;
  right: max(1rem, var(--gutter));
  bottom: max(1rem, var(--gutter));
  z-index: 20;
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  min-height: 3.2rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-pill);
  background: var(--color-primary);
  box-shadow: var(--shadow-button);
  color: var(--color-panel);
  font-weight: 800;
  text-decoration: none;
}

.dl-fab-icon {
  display: grid;
  width: 1.4rem;
  height: 1.4rem;
  place-items: center;
}

.dl-fab-icon svg {
  width: 100%;
  height: 100%;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

@media (max-width: 900px) {
  .article-layout {
    display: block;
  }

  .article-sidebar {
    position: static;
    margin-bottom: 2rem;
  }

  #related-posts {
    grid-template-columns: 1fr;
  }

  .related-post-card {
    min-height: 0;
  }
}

@media (max-width: 720px) {
  .blog-hero h1 {
    font-size: clamp(1.75rem, 9vw, 2.5rem);
  }

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

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

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

  .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;
  }

  .download-guide-card {
    align-items: flex-start;
    flex-direction: column;
  }

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

  #post-nav.has-single-link .post-nav-card-next {
    grid-column: auto;
  }

  .post-nav-card-next {
    text-align: left;
  }
}

@media (max-width: 480px) {
  .dl-fab-label {
    display: none;
  }

  .dl-fab {
    width: 3.2rem;
    justify-content: center;
    padding-inline: 0;
  }
}

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