.blog-index-hero {
  padding-block: clamp(3rem, 7vw, 5.5rem) clamp(2.5rem, 6vw, 4.5rem);
}

.blog-index-hero .wrap {
  max-width: var(--content-width);
}

.blog-index-hero h1 {
  max-width: 100%;
  margin-block: 0.75rem 1rem;
  font-family: var(--font-display);
  font-size: clamp(1.875rem, 1.35rem + 2vw, 3rem);
  line-height: 1.18;
  letter-spacing: -0.035em;
  color: var(--color-ink);
}

.blog-index-lead {
  max-width: 42rem;
  margin: 0;
  font-size: clamp(1rem, 0.94rem + 0.3vw, 1.1875rem);
  line-height: 1.75;
  color: var(--color-muted);
}

.blog-index-content {
  padding-block: 0 var(--section-space);
}

.blog-toolbar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 2rem;
  align-items: end;
  margin-bottom: 2rem;
  padding: clamp(1.5rem, 4vw, 2.5rem);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-xl);
  background: var(--color-panel);
}

.blog-toolbar h2 {
  margin-block: 0.5rem 0;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 1.25rem + 0.8vw, 2rem);
  line-height: 1.3;
  color: var(--color-ink);
}

.tag-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.625rem;
  justify-content: flex-end;
}

.tag-filter {
  min-height: 2.5rem;
  padding: 0.625rem 1rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-round);
  background: var(--color-page);
  color: var(--color-muted);
  font: inherit;
  font-weight: 650;
  line-height: 1;
  cursor: pointer;
}

.tag-filter:hover,
.tag-filter:focus-visible {
  border-color: var(--color-brand);
  color: var(--color-brand-deep);
}

.tag-filter.is-active {
  border-color: var(--color-brand-deep);
  background: var(--gradient-brand);
  color: var(--color-page);
  box-shadow: var(--shadow-button);
}

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

.post-card {
  display: flex;
  min-width: 0;
  min-height: 100%;
  flex-direction: column;
  padding: clamp(1.35rem, 3vw, 2rem);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-page);
  box-shadow: var(--shadow-soft);
}

.post-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.625rem 0.875rem;
  align-items: center;
  margin: 0;
  font-size: 0.8125rem;
  line-height: 1.4;
  color: var(--color-muted);
}

.post-meta time {
  font-family: var(--font-mono);
}

.post-title {
  margin-block: 1rem 0.75rem;
  font-family: var(--font-display);
  font-size: clamp(1.1875rem, 1.08rem + 0.4vw, 1.4375rem);
  line-height: 1.45;
  color: var(--color-ink);
}

.post-title a {
  color: inherit;
  text-decoration: none;
}

.post-title a:hover,
.post-title a:focus-visible {
  color: var(--color-brand-deep);
}

.post-excerpt {
  margin: 0 0 1.25rem;
  color: var(--color-muted);
  line-height: 1.75;
}

.post-link {
  align-self: flex-start;
  margin-top: auto;
  color: var(--color-brand-deep);
  font-weight: 700;
  text-decoration: none;
}

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

.blog-empty {
  margin: 2rem 0 0;
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  background: var(--color-panel);
  color: var(--color-muted);
  text-align: center;
}

/* Article header and breadcrumb */
.article-shell,
.blog-article {
  padding-top: 0.01rem;
}

main > nav.reading-wrap {
  margin-top: 1.5rem;
  margin-bottom: 1.25rem;
}

.article-breadcrumb,
.blog-breadcrumb,
nav.breadcrumb,
nav.breadcrumbs {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  min-width: 0;
  margin-top: 1.25rem;
  margin-bottom: 1.25rem;
  overflow: hidden;
  color: var(--color-muted);
  font-size: 0.8125rem;
  line-height: 1.5;
  white-space: nowrap;
}

.article-breadcrumb a,
.blog-breadcrumb a,
nav.breadcrumb a,
nav.breadcrumbs a {
  flex: 0 0 auto;
  color: var(--color-muted);
  opacity: 0.6;
  text-decoration: none;
}

.article-breadcrumb a:hover,
.article-breadcrumb a:focus-visible,
.blog-breadcrumb a:hover,
.blog-breadcrumb a:focus-visible,
nav.breadcrumb a:hover,
nav.breadcrumb a:focus-visible,
nav.breadcrumbs a:hover,
nav.breadcrumbs a:focus-visible {
  color: var(--color-brand-deep);
  opacity: 1;
}

.article-breadcrumb .separator,
.blog-breadcrumb .separator,
nav.breadcrumb .separator,
nav.breadcrumbs .separator {
  flex: 0 0 auto;
  opacity: 0.35;
}

.article-breadcrumb [aria-current="page"],
.blog-breadcrumb [aria-current="page"],
nav.breadcrumb [aria-current="page"],
nav.breadcrumbs [aria-current="page"] {
  flex: 0 1 auto;
  min-width: 0;
  max-width: 30ch;
  overflow: hidden;
  color: var(--color-muted);
  text-overflow: ellipsis;
}

.article-hero {
  padding-block: 0 2rem;
}

.article-hero .post-meta,
.article-meta {
  margin-bottom: 0.875rem;
  font-size: 0.8125rem;
}

.article-hero h1,
.blog-article h1 {
  max-width: 100%;
  margin-block: 0.875rem 0.75rem;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 1.1rem + 1.4vw, 2rem);
  line-height: 1.32;
  letter-spacing: -0.025em;
  color: var(--color-ink);
}

.article-lead,
.article-summary {
  max-width: var(--reading-width);
  margin: 0.9rem 0 0;
  font-size: clamp(0.9375rem, 0.85rem + 0.45vw, 1.125rem);
  line-height: 1.7;
  color: var(--color-muted);
}

/* Article body */
.prose {
  color: var(--color-ink);
  font-size: 1rem;
  line-height: 1.85;
}

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

.prose p,
.prose ul,
.prose ol,
.prose blockquote,
.prose pre,
.prose .table-wrap {
  margin-block: 1rem;
}

.prose h2 {
  margin-block: 2.75rem 1rem;
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 1.12rem + 0.5vw, 1.5rem);
  line-height: 1.4;
  color: var(--color-ink);
}

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

.prose h3 {
  margin-block: 1.75rem 0.75rem;
  font-family: var(--font-display);
  font-size: clamp(1.125rem, 1.05rem + 0.3vw, 1.25rem);
  line-height: 1.45;
  color: var(--color-ink);
}

.prose section {
  padding-block: 0;
  margin-block: 0 3rem;
}

.prose section + section {
  margin-top: 0;
}

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

.prose li + li {
  margin-top: 0.5rem;
}

.prose a:not([class*="btn"]):not([class*="button"]) {
  color: var(--color-brand-deep);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

.prose a:not([class*="btn"]):not([class*="button"]):hover,
.prose a:not([class*="btn"]):not([class*="button"]):focus-visible {
  text-decoration-thickness: 0.13em;
}

.prose blockquote {
  padding: 1rem 1.25rem;
  border-left: 0.25rem solid var(--color-brand);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  background: var(--color-panel);
  color: var(--color-muted);
}

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

.prose blockquote > :last-child {
  margin-bottom: 0;
}

.prose :not(pre) > code {
  padding: 0.15em 0.4em;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  background: var(--color-panel);
  color: var(--color-brand-deep);
  font-family: var(--font-mono);
  font-size: 0.9em;
}

.prose pre {
  max-width: 100%;
  padding: 1.25rem;
  overflow-x: auto;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-panel-strong);
  color: var(--color-ink);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.7;
  tab-size: 2;
}

.prose pre code {
  color: inherit;
  font: inherit;
}

.prose img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
}

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

.data-table {
  width: 100%;
  min-width: 38rem;
  border-collapse: collapse;
}

.data-table th,
.data-table td {
  padding: 0.875rem 1rem;
  border: 1px solid var(--color-line);
  text-align: left;
  vertical-align: top;
}

.data-table th {
  background: var(--color-panel);
  color: var(--color-ink);
}

/* End-of-article download card */
.end-download-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1.5rem;
  align-items: center;
  margin-block: 2.5rem 0;
  padding: clamp(1.5rem, 4vw, 2.25rem);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-xl);
  background: var(--color-panel);
}

.end-download-card__copy {
  min-width: 0;
}

.end-download-card__copy h2 {
  margin: 0 0 0.625rem;
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 1.12rem + 0.5vw, 1.5rem);
  line-height: 1.4;
  color: var(--color-ink);
}

.end-download-card__copy p {
  margin: 0;
  color: var(--color-muted);
  line-height: 1.7;
}

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

.end-download-card .button-primary {
  color: var(--color-ink);
}

/* Related posts */
#related-posts {
  margin-top: 3rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--color-line);
}

.related-heading {
  margin: 0 0 1.25rem;
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 1.12rem + 0.5vw, 1.5rem);
  line-height: 1.4;
  color: var(--color-ink);
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(18.75rem, 1fr));
  gap: 1rem;
}

.related-card {
  display: flex;
  min-width: 0;
  flex-direction: column;
  padding: 1.25rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-page);
  box-shadow: var(--shadow-soft);
}

.related-title {
  margin-block: 0.875rem 0.625rem;
  font-family: var(--font-display);
  font-size: 1.0625rem;
  line-height: 1.5;
  color: var(--color-ink);
}

.related-title a {
  color: inherit;
  text-decoration: none;
}

.related-title a:hover,
.related-title a:focus-visible {
  color: var(--color-brand-deep);
}

.related-summary {
  display: -webkit-box;
  margin: 0;
  overflow: hidden;
  color: var(--color-muted);
  line-height: 1.7;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
}

/* Previous and next navigation */
#post-nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-block: 1.5rem 3rem;
}

.post-nav-card {
  display: flex;
  min-width: 0;
  min-height: 7rem;
  flex-direction: column;
  justify-content: center;
  padding: 1.25rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-panel);
  color: var(--color-ink);
  text-decoration: none;
}

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

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

.post-nav-label {
  margin-bottom: 0.5rem;
  color: var(--color-muted);
  font-size: 0.8125rem;
  font-weight: 700;
}

.post-nav-title {
  overflow: hidden;
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.5;
  text-overflow: ellipsis;
}

/* Compact article rhythm when a page uses generic section classes */
.blog-article .section,
.article-shell .section,
main.article-page .section {
  padding-block: 1.5rem;
}

.blog-article .section + .section,
.article-shell .section + .section,
main.article-page .section + .section {
  padding-top: 0;
}

.blog-article > .section:first-child,
.article-shell > .section:first-child,
main.article-page > .section:first-child {
  padding-top: 0.75rem;
}

@media (max-width: 820px) {
  .blog-toolbar {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .tag-filters {
    justify-content: flex-start;
  }

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

@media (max-width: 680px) {
  .blog-index-hero {
    padding-block: 2.75rem 2rem;
  }

  .blog-index-hero h1 {
    font-size: clamp(1.75rem, 7vw, 1.875rem);
  }

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

  .end-download-card {
    grid-template-columns: 1fr;
  }

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

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

  .article-breadcrumb,
  .blog-breadcrumb,
  nav.breadcrumb,
  nav.breadcrumbs {
    margin-top: 1.2rem;
  }
}

@media (max-width: 420px) {
  .blog-toolbar,
  .post-card {
    padding: 1.25rem;
  }

  .tag-filter {
    padding-inline: 0.8125rem;
  }

  .article-hero h1,
  .blog-article h1 {
    font-size: 1.5rem;
  }
}