:root {
  --blog-fs-crumb: 0.8125rem;
  --blog-fs-title: clamp(1.5rem, 1.1rem + 1.4vw, 2rem);
  --blog-fs-list-title: clamp(1.5rem, 1rem + 2.5vw, 3rem);
  --blog-fs-lead: clamp(0.9375rem, 0.85rem + 0.45vw, 1.125rem);
  --blog-fs-h2: clamp(1.25rem, 1rem + 0.6vw, 1.5rem);
  --blog-fs-h3: 1.25rem;
  --blog-title-leading: 1.32;
  --blog-body-leading: 1.8;
  --blog-crumb-opacity: 0.65;
  --blog-separator-opacity: 0.35;
  --blog-card-min: 300px;
  --blog-focus-width: 3px;
  --blog-card-space: 1.5rem;
}

.blog-list-hero {
  padding-block: 3rem 2rem;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}

.blog-eyebrow {
  margin: 0 0 1rem;
  color: var(--muted);
  font-size: var(--fs-sm);
}

.blog-list-hero h1 {
  max-width: 100%;
  margin: 0;
  color: var(--navy);
  font-family: var(--font-display);
  font-size: var(--blog-fs-list-title);
  font-weight: 800;
  line-height: var(--blog-title-leading);
  overflow-wrap: anywhere;
}

.blog-list-lead {
  max-width: var(--reading-w);
  margin: 1.25rem 0 0;
  color: var(--muted);
  font-size: var(--blog-fs-lead);
  line-height: 1.7;
}

.blog-shelf {
  padding-block: 2rem 4rem;
  background: var(--bg);
}

.blog-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.blog-filter button {
  min-height: 44px;
  padding: 0.65rem 1.25rem;
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
  background: var(--panel);
  color: var(--navy);
  font-family: var(--font-body);
  font-size: var(--fs-sm);
  font-weight: 600;
  cursor: pointer;
  transition: border-color var(--fast) var(--ease), background var(--fast) var(--ease);
}

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

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

.blog-filter button:focus-visible,
.post-card a:focus-visible,
#post-nav a:focus-visible,
.blog-breadcrumb a:focus-visible,
nav.breadcrumb a:focus-visible,
nav.breadcrumbs a:focus-visible {
  outline: var(--blog-focus-width) solid var(--navy);
  outline-offset: 4px;
}

.blog-status {
  min-height: 1.5em;
  margin: 1.25rem 0;
  color: var(--muted);
  font-size: var(--fs-sm);
}

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

.post-card {
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: var(--blog-card-space);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  background: var(--panel);
  color: var(--navy);
  box-shadow: var(--shadow-soft);
}

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

.post-meta .tag,
.article-meta .tag {
  padding: 0.2rem 0.65rem;
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
  background: var(--panel-2);
  color: var(--navy);
  font-size: inherit;
}

.post-card .post-title {
  margin: 1rem 0 0;
  font-family: var(--font-display);
  font-size: var(--blog-fs-h3);
  font-weight: 800;
  line-height: 1.5;
  overflow-wrap: anywhere;
}

.post-card .post-title a,
.post-more {
  color: var(--navy);
  text-decoration: none;
}

.post-card .post-title a:hover,
.post-more:hover {
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

.post-summary {
  margin: 1rem 0 1.25rem;
  color: var(--muted);
  font-size: var(--fs-body);
  line-height: var(--blog-body-leading);
  overflow-wrap: anywhere;
}

.post-more {
  align-self: flex-start;
  margin-top: auto;
  padding-block: 0.5rem;
  font-size: var(--fs-sm);
  font-weight: 600;
}

.blog-empty {
  grid-column: 1 / -1;
  color: var(--muted);
  line-height: var(--blog-body-leading);
}

.blog-breadcrumb,
nav.breadcrumb,
nav.breadcrumbs {
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  gap: 0.5rem;
  min-width: 0;
  margin-top: 1.5rem;
  margin-bottom: 1.25rem;
  padding: 0;
  overflow: hidden;
  color: var(--muted);
  font-family: var(--font-body);
  font-size: var(--blog-fs-crumb);
  line-height: 1.6;
  white-space: nowrap;
}

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

:is(.blog-breadcrumb, nav.breadcrumb, nav.breadcrumbs) a:hover {
  color: var(--navy);
  opacity: 1;
}

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

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

.article-page main > .section,
.article-page .article-hero.section,
.article-page .reading.section,
.section:has(> .blog-breadcrumb, > nav.breadcrumb, > nav.breadcrumbs),
.section:has(> .reading > .blog-breadcrumb, > .reading > nav.breadcrumb, > .reading > nav.breadcrumbs) {
  padding-block: 0 1.5rem;
}

main.reading:has(.article-download) {
  padding-top: 32px;
  padding-bottom: 7rem;
}

main.reading:has(.article-download) > nav:first-child {
  margin: 0 0 20px;
  color: var(--muted);
  font-size: var(--blog-fs-crumb);
  line-height: 1.6;
}

main.reading:has(.article-download) > nav:first-child p {
  margin: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.article-hero {
  padding-block: 0.5rem 1.5rem;
}

.article-hero .article-meta,
main.reading header .post-meta {
  margin: 0 0 14px;
}

.article-hero h1,
.article-page h1,
main.reading:has(.article-download) h1 {
  max-width: 100%;
  margin: 0 0 12px;
  color: var(--navy);
  font-family: var(--font-display);
  font-size: var(--blog-fs-title);
  font-weight: 800;
  line-height: var(--blog-title-leading);
  overflow-wrap: anywhere;
}

.article-hero .article-lead,
.article-hero .lead,
.article-hero .article-summary,
main.reading header .lead {
  margin: 0 0 24px;
  color: var(--muted);
  font-size: var(--blog-fs-lead);
  line-height: 1.7;
}

.article-page main {
  padding-bottom: 7rem;
}

.prose {
  min-width: 0;
  color: var(--navy);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: var(--blog-body-leading);
  overflow-wrap: anywhere;
}

.prose h2 {
  margin: 2rem 0 1rem;
  font-family: var(--font-display);
  font-size: var(--blog-fs-h2);
  font-weight: 800;
  line-height: 1.45;
}

.prose h3 {
  margin: 1.5rem 0 0.75rem;
  font-family: var(--font-display);
  font-size: var(--blog-fs-h3);
  font-weight: 800;
  line-height: 1.5;
}

.prose > h2:first-of-type,
.prose > section:first-of-type > h2:first-of-type,
.prose > .article-hero + section > h2:first-of-type,
.prose > .article-hero + h2 {
  margin-top: 0;
}

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

.prose section + section {
  margin-top: 2rem;
}

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

.prose p,
.prose ul,
.prose ol {
  margin-block: 0 1rem;
}

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

.prose li + li {
  margin-top: 0.4rem;
}

.prose a:not([class*="btn"]):not([class*="button"]) {
  color: var(--navy);
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

.prose a:not([class*="btn"]):not([class*="button"]):hover {
  text-decoration-thickness: 2px;
}

.prose code {
  padding: 0.1em 0.3em;
  border-radius: var(--r-xs);
  background: var(--panel-2);
  color: var(--navy);
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  overflow-wrap: anywhere;
}

.prose pre {
  max-width: 100%;
  margin: 1.25rem 0;
  padding: 1.25rem;
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  background: var(--panel-2);
  color: var(--navy);
}

.prose pre code {
  padding: 0;
  background: var(--clear);
  white-space: pre;
  overflow-wrap: normal;
}

.prose blockquote {
  margin: 1.25rem 0;
  padding: 1rem 1.25rem;
  border-inline-start: 3px solid var(--coral);
  border-radius: var(--r-sm);
  background: var(--panel);
  color: var(--navy);
}

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

.prose img {
  max-width: 100%;
  height: auto;
}

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

.prose table {
  display: block;
  max-width: 100%;
  overflow-x: auto;
  border-collapse: collapse;
  font-size: var(--fs-sm);
}

.prose th,
.prose td {
  min-width: 7em;
  padding: 0.75rem;
  border: 1px solid var(--border);
  text-align: start;
  vertical-align: top;
}

.prose th {
  background: var(--panel-2);
  color: var(--navy);
}

.article-download {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  margin-block: 2rem;
  padding: var(--blog-card-space);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  background: var(--panel);
  color: var(--navy);
  box-shadow: var(--shadow-soft);
}

.article-download h2 {
  margin: 0 0 0.75rem;
  color: var(--navy);
  font-size: var(--blog-fs-h2);
}

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

.article-download .ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 0;
}

#related-posts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, var(--blog-card-min)), 1fr));
  gap: 1.25rem;
  max-width: var(--reading-w);
  margin-block: 1.25rem 2rem;
}

#related-posts:empty,
#post-nav:empty {
  display: none;
}

#related-posts .post-card {
  min-width: 0;
}

#post-nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-block: 1.5rem 2rem;
}

#post-nav .post-nav-card {
  display: block;
  min-width: 0;
  padding: 1.25rem;
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  background: var(--panel);
  color: var(--navy);
  text-decoration: none;
  box-shadow: var(--shadow-soft);
}

#post-nav .post-nav-card:hover {
  border-color: var(--navy);
}

.post-nav-label {
  display: block;
  margin-bottom: 0.75rem;
  color: var(--muted);
  font-size: var(--blog-fs-crumb);
}

.post-nav-title {
  display: block;
  font-size: var(--fs-body);
  font-weight: 600;
  line-height: 1.65;
  overflow-wrap: anywhere;
}

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

@media (max-width: 700px) {
  .blog-list-hero {
    padding-block: 2rem 1.5rem;
  }

  .blog-list-hero h1 {
    font-size: clamp(1.5rem, 1.1rem + 2vw, 1.875rem);
  }

  .article-hero h1,
  .article-page h1,
  main.reading:has(.article-download) h1 {
    font-size: 1.5rem;
  }

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

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

  .article-download {
    align-items: stretch;
  }

  .article-download .ctas {
    width: 100%;
  }
}

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