.blog-page {
  min-height: calc(100vh - var(--header-height));
  background: var(--color-bg);
}

.blog-hero {
  padding-block: 4.5rem 3.75rem;
  border-bottom: 1px solid var(--color-border);
}

.blog-kicker,
.blog-section-label {
  margin: 0 0 0.75rem;
  color: var(--color-accent-dark);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.blog-hero h1 {
  max-width: 18ch;
  margin: 0;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: clamp(2rem, 1.45rem + 2.2vw, 3rem);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -0.035em;
}

.blog-hero-lead {
  max-width: 48rem;
  margin: 1.25rem 0 0;
  color: var(--color-muted);
  font-size: clamp(1rem, 0.94rem + 0.3vw, 1.125rem);
  line-height: 1.75;
}

.blog-listing {
  padding-block: 3.75rem 6rem;
}

.blog-listing-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 2rem;
  margin-bottom: 2rem;
}

.blog-listing-head h2 {
  margin: 0;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 1.3rem + 0.7vw, 2rem);
  line-height: 1.25;
}

.blog-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.blog-filter {
  min-height: 2.5rem;
  padding: 0.55rem 0.9rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  color: var(--color-muted);
  font: 700 0.875rem/1 var(--font-body);
  cursor: pointer;
  transition:
    border-color 160ms ease,
    background-color 160ms ease,
    color 160ms ease,
    box-shadow 160ms ease;
}

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

.blog-filter:focus-visible {
  outline: 3px solid var(--color-accent-soft);
  outline-offset: 2px;
}

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

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

.post-card {
  position: relative;
  display: flex;
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  box-shadow: var(--shadow-card);
  transition:
    border-color 180ms ease,
    box-shadow 180ms ease,
    transform 180ms ease;
}

.post-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-panel);
  transform: translateY(-2px);
}

.post-card-accent {
  flex: 0 0 0.3rem;
  background: linear-gradient(180deg, var(--color-accent), var(--color-warning));
}

.post-card-content {
  display: flex;
  flex: 1;
  flex-direction: column;
  min-width: 0;
  padding: 1.5rem;
}

.post-card-meta,
.related-card-meta,
.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.65rem;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  line-height: 1.4;
}

.post-tag {
  display: inline-flex;
  align-items: center;
  min-height: 1.6rem;
  padding-inline: 0.55rem;
  border: 1px solid var(--color-accent-soft);
  border-radius: var(--radius-xs);
  background: var(--color-accent-soft);
  color: var(--color-accent-dark);
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 700;
}

.post-card h3 {
  margin: 1rem 0 0;
  font-family: var(--font-display);
  font-size: clamp(1.125rem, 1.02rem + 0.35vw, 1.35rem);
  line-height: 1.45;
}

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

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

.post-card p {
  margin: 0.85rem 0 1.25rem;
  color: var(--color-muted);
  font-size: 0.9375rem;
  line-height: 1.75;
}

.post-read-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  width: fit-content;
  margin-top: auto;
  color: var(--color-accent-dark);
  font-size: 0.875rem;
  font-weight: 750;
  text-decoration: none;
}

.post-read-link:hover {
  color: var(--color-accent);
}

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

/* Article header and breadcrumb */

.article-page {
  background: var(--color-bg);
}

.article-page .section {
  padding-block: 1.5rem;
}

.article-page .article-breadcrumb-section {
  padding-block: 1.5rem 0;
}

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

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

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

.blog-breadcrumb .separator,
nav.breadcrumb .separator,
nav.breadcrumbs .separator {
  flex: 0 0 auto;
  color: var(--color-muted);
  opacity: 0.35;
}

.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;
  border-bottom: 1px solid var(--color-border);
}

.article-hero .reading-wrap {
  padding-top: 0.75rem;
}

.article-meta {
  margin-bottom: 0.875rem;
}

.article-hero h1 {
  max-width: 100%;
  margin-block: 0.875rem 0.75rem;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 1.1rem + 1.4vw, 2rem);
  font-weight: 800;
  line-height: 1.32;
  letter-spacing: -0.02em;
}

.article-lead {
  max-width: 100%;
  margin: 0.75rem 0 0;
  color: var(--color-muted);
  font-size: clamp(0.9375rem, 0.85rem + 0.45vw, 1.125rem);
  line-height: 1.7;
}

.article-body {
  padding-block: 2rem 2.75rem;
}

.article-body > section,
.prose > section {
  padding-block: 0;
}

.article-body > section + section,
.prose > section + section {
  margin-top: 2.5rem;
}

.prose {
  color: var(--color-text);
  font-size: 1rem;
  line-height: 1.85;
}

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

.prose h2 {
  margin: 2.5rem 0 1rem;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 1.18rem + 0.45vw, 1.5rem);
  line-height: 1.4;
  letter-spacing: -0.015em;
}

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

.prose h3 {
  margin: 2rem 0 0.75rem;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: clamp(1.125rem, 1.05rem + 0.3vw, 1.25rem);
  line-height: 1.45;
}

.prose p {
  margin: 0 0 1.15rem;
}

.prose ul,
.prose ol {
  margin: 0 0 1.25rem;
  padding-left: 1.5rem;
}

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

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

.prose a:not([class*="btn"]):not([class*="button"]):hover {
  color: var(--color-accent);
  text-decoration-color: currentColor;
}

.prose blockquote {
  margin: 1.5rem 0;
  padding: 1rem 1.25rem;
  border-left: 0.25rem solid var(--color-accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: var(--color-panel);
  color: var(--color-muted);
}

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

.prose :not(pre) > code {
  padding: 0.12em 0.35em;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xs);
  background: var(--color-panel);
  color: var(--color-accent-dark);
  font-family: var(--font-mono);
  font-size: 0.88em;
  overflow-wrap: anywhere;
}

.prose pre {
  max-width: 100%;
  margin: 1.5rem 0;
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-hero);
  box-shadow: var(--shadow-card);
}

.prose pre code {
  display: block;
  min-width: max-content;
  padding: 1.25rem;
  color: var(--color-hero-text);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.75;
}

/* End-of-article actions */

.download-note-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  margin-top: 2.5rem;
  padding: 1.5rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-panel);
  box-shadow: var(--shadow-card);
}

.download-note-card h2 {
  margin: 0;
  color: var(--color-text);
  font-size: 1.35rem;
  line-height: 1.4;
}

.download-note-card p {
  margin: 0.5rem 0 0;
  color: var(--color-muted);
  line-height: 1.7;
}

.download-note-actions {
  display: flex;
  flex: 0 0 auto;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* Related posts and chronological navigation */

#related-posts {
  margin-top: 2.75rem;
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
}

#related-posts > h2 {
  margin: 0 0 1.25rem;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: 1.5rem;
  line-height: 1.4;
}

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

.related-card {
  min-width: 0;
  padding: 1.25rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  box-shadow: var(--shadow-card);
}

.related-card h3 {
  margin: 0.9rem 0 0;
  font-family: var(--font-display);
  font-size: 1.05rem;
  line-height: 1.5;
}

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

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

.related-card p {
  margin: 0.7rem 0 0;
  color: var(--color-muted);
  font-size: 0.9rem;
  line-height: 1.7;
}

#post-nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
  padding-bottom: 3.5rem;
}

.post-nav-card {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  min-width: 0;
  padding: 1.15rem 1.25rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  color: var(--color-text);
  text-decoration: none;
  box-shadow: var(--shadow-card);
}

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

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

.post-nav-label {
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.post-nav-card strong {
  font-size: 0.9375rem;
  line-height: 1.55;
}

@media (max-width: 820px) {
  .blog-hero {
    padding-block: 3.25rem 2.75rem;
  }

  .blog-listing {
    padding-block: 2.75rem 4.5rem;
  }

  .blog-listing-head {
    align-items: flex-start;
    flex-direction: column;
    gap: 1.25rem;
  }

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

  .related-grid {
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 18.75rem), 1fr));
  }

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

  .download-note-actions {
    width: 100%;
  }
}

@media (max-width: 600px) {
  .blog-hero {
    padding-block: 2.75rem 2.25rem;
  }

  .blog-hero h1 {
    max-width: 100%;
    font-size: 1.875rem;
  }

  .blog-filters {
    width: 100%;
  }

  .blog-filter {
    flex: 1 1 auto;
  }

  .post-card-content {
    padding: 1.2rem;
  }

  .article-page .article-breadcrumb-section {
    padding-top: 1.25rem;
  }

  .blog-breadcrumb,
  nav.breadcrumb,
  nav.breadcrumbs {
    margin-top: 1.25rem;
  }

  .article-hero {
    padding-bottom: 1.5rem;
  }

  .article-body {
    padding-block: 1.5rem 2.25rem;
  }

  .prose h2 {
    margin-top: 2rem;
  }

  .download-note-card {
    padding: 1.2rem;
  }

  .download-note-actions {
    flex-direction: column;
  }

  .download-note-actions .button {
    width: 100%;
  }

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

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

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

  .post-card:hover {
    transform: none;
  }
}