:root {
  --blog-list-title-size: clamp(1.75rem, 1.3rem + 2vw, 3rem);
  --blog-article-title-size: clamp(1.5rem, 1.1rem + 1.4vw, 2rem);
  --blog-lead-size: clamp(0.9375rem, 0.85rem + 0.45vw, 1.125rem);
  --blog-h2-size: clamp(1.25rem, 1.05rem + 0.6vw, 1.5rem);
  --blog-h3-size: clamp(1.0625rem, 0.95rem + 0.4vw, 1.25rem);
  --blog-small-size: 0.8125rem;
  --blog-body-size: 1rem;
}

.blog-index,
.article-page {
  background: var(--c-bg);
  color: var(--c-text);
  font-family: var(--f-body);
}

.blog-skip {
  position: absolute;
  z-index: 1000;
  top: 0.5rem;
  left: var(--gutter);
  padding: 0.75rem 1rem;
  transform: translateY(-200%);
  border-radius: var(--r-sm);
  background: var(--c-bg);
  color: var(--c-accent-dark);
  font-family: var(--f-body);
  text-decoration: none;
}

.blog-skip:focus {
  transform: translateY(0);
}

.blog-index :focus-visible,
.article-page :focus-visible,
#related-posts :focus-visible,
#post-nav :focus-visible {
  outline: 3px solid var(--c-accent);
  outline-offset: 4px;
}

.blog-hero {
  position: relative;
  overflow: hidden;
  padding-block: 3rem 4rem;
  color: var(--w-100);
  background:
    radial-gradient(ellipse at 85% 90%, var(--glow-spot), var(--glow-spot-0) 65%),
    linear-gradient(180deg, var(--c-night), var(--c-brand) 65%, var(--c-lavender));
}

.blog-hero::after {
  position: absolute;
  inset: auto 0 0;
  height: 1.5rem;
  content: "";
  background: linear-gradient(180deg, var(--w-0), var(--c-bg));
  pointer-events: none;
}

.blog-kicker {
  margin: 0 0 1rem;
  color: var(--w-92);
  font-family: var(--f-mono);
  font-size: var(--blog-small-size);
  line-height: 1.6;
}

.blog-hero h1 {
  display: block;
  max-width: 100%;
  margin: 0;
  font-family: var(--f-display);
  font-size: var(--blog-list-title-size);
  font-weight: 900;
  line-height: 1.25;
  letter-spacing: -0.03em;
  overflow-wrap: break-word;
}

.blog-hero .nowrap {
  white-space: nowrap;
}

.blog-hero-lead {
  max-width: 44rem;
  margin: 1.25rem 0 0;
  color: var(--w-100);
  font-size: var(--blog-lead-size);
  line-height: 1.8;
}

.blog-topic-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 0.625rem;
  margin: 1.75rem 0 0;
  padding: 0;
  list-style: none;
}

.blog-topic-strip li {
  padding: 0.375rem 0.875rem;
  border: 1px solid var(--w-40);
  border-radius: var(--r-pill);
  background: var(--night-18);
  color: var(--w-100);
  font-family: var(--f-mono);
  font-size: var(--blog-small-size);
}

.blog-library {
  padding-block: 2.5rem 4.5rem;
}

.blog-library-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem 1.5rem;
  margin-bottom: 1.25rem;
}

.blog-library-head h2,
#related-posts > h2 {
  display: block;
  margin: 0;
  color: var(--c-text);
  font-family: var(--f-display);
  font-size: var(--blog-h2-size);
  font-weight: 800;
  line-height: 1.5;
}

.blog-count {
  margin: 0;
  color: var(--c-muted);
  font-size: var(--blog-small-size);
}

.blog-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.625rem;
  margin-bottom: 1.75rem;
}

.blog-filter {
  min-height: 44px;
  padding: 0.625rem 1.125rem;
  border: 1px solid var(--c-border);
  border-radius: var(--r-pill);
  background: var(--c-bg);
  color: var(--c-muted);
  font-family: var(--f-body);
  font-size: var(--blog-body-size);
  font-weight: 600;
  line-height: 1.5;
  cursor: pointer;
  transition: background var(--motion-fast) var(--ease-out),
    color var(--motion-fast) var(--ease-out);
}

.blog-filter:hover {
  background: var(--c-panel);
  color: var(--c-accent-dark);
}

.blog-filter[aria-pressed="true"] {
  border-color: var(--c-accent-dark);
  background: var(--c-accent-dark);
  color: var(--c-bg);
}

.blog-post-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem;
}

.blog-post-grid > *,
.related-grid > * {
  min-width: 0;
}

.blog-post-grid .post-card,
#related-posts .post-card {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: 1.75rem;
  border: 0;
  border-radius: var(--r-lg);
  background: var(--c-bg);
  color: var(--c-text);
  box-shadow: var(--sh-card);
}

.post-card .post-meta,
.article-meta,
.post-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.875rem;
  color: var(--c-muted);
  font-size: var(--blog-small-size);
  line-height: 1.6;
}

.post-card .tag,
.article-meta .tag,
.article-hero .tag {
  display: inline-block;
  max-width: 100%;
  padding: 0.25rem 0.625rem;
  border-radius: var(--r-pill);
  background: var(--c-panel-2);
  color: var(--c-accent-dark);
  font-size: var(--blog-small-size);
  line-height: 1.6;
  white-space: normal;
}

.post-card h3 {
  display: block;
  margin: 0;
  font-family: var(--f-display);
  font-size: var(--blog-h3-size);
  font-weight: 800;
  line-height: 1.6;
  overflow-wrap: break-word;
}

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

.post-card h3 a:hover {
  color: var(--c-accent-dark);
}

.post-card p {
  margin: 0;
  color: var(--c-muted);
  font-size: var(--blog-body-size);
  line-height: 1.85;
  overflow-wrap: break-word;
}

.post-card .post-read {
  align-self: flex-start;
  margin-top: auto;
  padding-top: 0.25rem;
  color: var(--c-accent-dark);
  font-size: var(--blog-body-size);
  font-weight: 600;
  text-decoration: none;
}

.post-card .post-read:hover {
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

.blog-empty {
  grid-column: 1 / -1;
  margin: 0;
  padding: 1.5rem;
  border-radius: var(--r-md);
  background: var(--c-panel);
  color: var(--c-muted);
  line-height: 1.8;
}

/* Common breadcrumb aliases share the same single-line treatment. */
.blog-breadcrumb,
nav.breadcrumb,
nav.breadcrumbs {
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  gap: 0.5rem;
  min-width: 0;
  margin-top: 1.25rem;
  margin-bottom: 1.25rem;
  padding-block: 0.125rem;
  overflow: hidden;
  color: var(--c-muted);
  font-family: var(--f-body);
  font-size: var(--blog-small-size);
  line-height: 1.6;
  white-space: nowrap;
}

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

.blog-breadcrumb a:hover,
nav.breadcrumb a:hover,
nav.breadcrumbs a:hover {
  color: var(--c-accent-dark);
}

.blog-breadcrumb [aria-hidden="true"],
nav.breadcrumb [aria-hidden="true"],
nav.breadcrumbs [aria-hidden="true"] {
  flex: 0 0 auto;
  color: var(--c-muted);
  opacity: 0.55;
}

.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(--c-muted);
  text-overflow: ellipsis;
}

/* Article layouts use a compact rhythm, separate from landing sections. */
.article-page main > .section:first-child,
.article-page main.section,
.article-page main.sec,
.article-page main > .sec:first-child,
.article-page .article-shell {
  padding-top: 1.25rem;
}

.article-page .section:has(> .blog-breadcrumb),
.article-page .section:has(> nav.breadcrumb),
.article-page .section:has(> nav.breadcrumbs) {
  padding-top: 1.25rem;
  padding-bottom: 0;
}

.article-hero {
  padding-block: 0.5rem 1.75rem;
}

.article-hero .article-meta,
.article-hero .post-meta {
  margin-top: 0;
  margin-bottom: 1rem;
}

.article-hero h1,
main article > header h1 {
  display: block;
  width: 100%;
  max-width: 100%;
  margin: 0.875rem 0 0.75rem;
  color: var(--c-text);
  font-family: var(--f-display);
  font-size: var(--blog-article-title-size);
  font-weight: 900;
  line-height: 1.32;
  letter-spacing: -0.015em;
  overflow-wrap: break-word;
}

.article-hero .article-lead,
.article-hero .article-summary,
.article-hero .lead,
.article-hero > p:not(.article-meta):not(.post-meta):last-child {
  margin-top: 1rem;
  margin-bottom: 0;
  color: var(--c-muted);
  font-size: var(--blog-lead-size);
  line-height: 1.7;
}

.article-body {
  min-width: 0;
  color: var(--c-text);
  font-family: var(--f-body);
  font-size: var(--blog-body-size);
  line-height: 1.9;
  overflow-wrap: break-word;
}

.article-body > section,
.article-body section.section,
.article-body section.sec,
.article-page .prose > section,
.article-page .prose section.section,
.article-page .prose section.sec {
  margin-block: 0 1.5rem;
  padding-block: 0;
}

.article-body h2,
.article-page .prose h2 {
  display: block;
  margin: 2rem 0 0.875rem;
  color: var(--c-text);
  font-family: var(--f-display);
  font-size: var(--blog-h2-size);
  font-weight: 800;
  line-height: 1.5;
  scroll-margin-top: calc(var(--header-height) + 1rem);
}

.article-body > h2:first-child,
.article-body > section:first-child > h2:first-child,
.article-page .prose > h2:first-child,
.article-page .prose > section:first-child > h2:first-child {
  margin-top: 0;
}

.article-body h3,
.article-page .prose h3 {
  display: block;
  margin: 1.5rem 0 0.75rem;
  color: var(--c-text);
  font-family: var(--f-display);
  font-size: var(--blog-h3-size);
  font-weight: 800;
  line-height: 1.5;
}

.article-body p,
.article-body ul,
.article-body ol,
.article-page .prose p,
.article-page .prose ul,
.article-page .prose ol {
  margin-block: 0 1.125rem;
}

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

.article-body li + li {
  margin-top: 0.375rem;
}

.article-body a:not([class*="btn"]):not([class*="button"]),
.article-page .prose a:not([class*="btn"]):not([class*="button"]) {
  color: var(--c-accent-dark);
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

.article-body code,
.article-page .prose code {
  border-radius: var(--r-xs);
  background: var(--c-panel);
  color: var(--c-text);
  font-family: var(--f-mono);
  font-size: 0.9em;
  overflow-wrap: anywhere;
}

.article-body :not(pre) > code,
.article-page .prose :not(pre) > code {
  padding: 0.125rem 0.3rem;
}

.article-body pre,
.article-page .prose pre {
  max-width: 100%;
  margin-block: 1.25rem;
  padding: 1.25rem;
  overflow-x: auto;
  border-radius: var(--r-md);
  background: var(--c-panel);
  color: var(--c-text);
  font-family: var(--f-mono);
  line-height: 1.75;
}

.article-body pre code,
.article-page .prose pre code {
  padding: 0;
  white-space: pre;
  overflow-wrap: normal;
  word-break: normal;
}

.article-body blockquote {
  margin: 1.25rem 0;
  padding: 1rem 1.25rem;
  border-left: 3px solid var(--c-accent);
  border-radius: var(--r-xs);
  background: var(--c-panel);
  color: var(--c-muted);
}

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

.article-body .table-scroll {
  max-width: 100%;
  margin-block: 1.25rem;
  overflow-x: auto;
}

.article-body table,
.article-page .prose table {
  display: block;
  max-width: 100%;
  overflow-x: auto;
  border-collapse: collapse;
  font-size: var(--blog-body-size);
}

.article-body th,
.article-body td,
.article-page .prose th,
.article-page .prose td {
  min-width: 7em;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--c-border);
  color: var(--c-text);
  text-align: left;
  vertical-align: top;
  word-break: normal;
}

.article-body th,
.article-page .prose th {
  background: var(--c-panel);
  font-weight: 800;
}

.article-download {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  margin-block: 2rem;
  padding: 1.5rem;
  border-radius: var(--r-lg);
  background: var(--c-panel);
  color: var(--c-text);
}

.article-download > div {
  min-width: 0;
}

.article-download h3 {
  display: block;
  margin: 0 0 0.5rem;
  color: var(--c-text);
  font-family: var(--f-display);
  font-size: var(--blog-h3-size);
  font-weight: 800;
  line-height: 1.5;
}

.article-download p {
  margin: 0;
  color: var(--c-muted);
  font-size: var(--blog-body-size);
  line-height: 1.7;
}

.article-download .article-download-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

#related-posts {
  margin-block: 2rem;
  padding: 0;
}

#related-posts > h2 {
  margin-bottom: 1.25rem;
}

#related-posts .related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
  gap: 1.25rem;
}

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

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

#post-nav .post-nav-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.75rem;
  min-width: 0;
  padding: 1.25rem;
  border-radius: var(--r-md);
  background: var(--c-panel);
  color: var(--c-text);
  text-decoration: none;
}

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

#post-nav .post-nav-label {
  color: var(--c-accent-dark);
  font-size: var(--blog-small-size);
  font-weight: 600;
}

#post-nav strong {
  color: var(--c-text);
  font-family: var(--f-display);
  font-size: var(--blog-body-size);
  font-weight: 800;
  line-height: 1.7;
  overflow-wrap: break-word;
}

#post-nav time {
  margin-top: auto;
  color: var(--c-muted);
  font-size: var(--blog-small-size);
}

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

#related-posts[hidden],
#post-nav[hidden] {
  display: none;
}

@media (max-width: 820px) {
  .blog-post-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .blog-hero h1 {
    font-size: min(var(--blog-list-title-size), 1.875rem);
  }

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

@media (max-width: 640px) {
  .blog-hero {
    padding-block: 2.25rem 3rem;
  }

  .blog-hero h1 {
    font-size: 1.75rem;
  }

  .blog-library {
    padding-block: 2rem 3rem;
  }

  .blog-post-grid .post-card {
    padding: 1.25rem;
  }

  #related-posts .related-grid,
  #post-nav {
    grid-template-columns: minmax(0, 1fr);
  }

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

  .article-download {
    padding: 1.25rem;
  }
}

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