.blog-index-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(4.5rem, 9vw, 7.5rem) var(--gutter);
  border-bottom: 1px solid var(--color-line);
  background: var(--color-canvas);
}

.blog-index-hero::before {
  position: absolute;
  inset: 8% 16% auto;
  height: 70%;
  border-radius: var(--radius-pill);
  background: var(--color-panel);
  opacity: 0.72;
  filter: blur(4.5rem);
  content: "";
  pointer-events: none;
}

.blog-index-hero-inner {
  position: relative;
  z-index: 1;
  text-align: center;
}

.blog-index-hero h1 {
  max-width: 100%;
  margin: 0.9rem auto 1rem;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: clamp(2rem, 1.35rem + 2.3vw, 3rem);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.035em;
}

.blog-index-hero p {
  max-width: 46rem;
  margin: 0 auto;
  color: var(--color-muted);
  font-size: clamp(1rem, 0.94rem + 0.25vw, 1.125rem);
  line-height: 1.75;
}

.blog-index-content {
  padding: var(--section-space) var(--gutter);
  background: var(--color-panel-soft);
}

.blog-list-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 2rem;
  margin-bottom: 2.25rem;
}

.blog-list-heading h2 {
  margin: 0.7rem 0 0;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: clamp(1.65rem, 1.4rem + 0.8vw, 2.25rem);
  line-height: 1.25;
}

.blog-tag-filters {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.55rem;
}

.blog-filter {
  min-height: 2.35rem;
  padding: 0.45rem 0.9rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
  background: var(--color-canvas);
  color: var(--color-muted);
  font-family: var(--font-body);
  font-size: 0.875rem;
  line-height: 1;
  cursor: pointer;
  transition:
    border-color 160ms ease,
    background-color 160ms ease,
    color 160ms ease,
    transform 160ms ease;
}

.blog-filter:hover {
  border-color: var(--color-accent);
  color: var(--color-accent-deep);
  transform: translateY(-1px);
}

.blog-filter.is-active {
  border-color: var(--color-accent);
  background: var(--color-accent);
  color: var(--color-canvas);
}

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

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

.post-card {
  display: flex;
  min-width: 0;
  flex-direction: column;
  padding: clamp(1.25rem, 2.5vw, 1.7rem);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-card);
  background: var(--color-canvas);
  box-shadow: var(--shadow-card);
}

.post-card-meta,
.related-post-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
  margin-bottom: 1rem;
}

.post-card time,
.related-post-meta time {
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  line-height: 1.4;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.post-card .tag,
.related-post-card .tag,
.article-meta .tag {
  display: inline-flex;
  align-items: center;
  min-height: 1.75rem;
  padding: 0.25rem 0.6rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
  background: var(--color-panel);
  color: var(--color-accent-deep);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  line-height: 1;
}

.post-card h3 {
  margin: 0 0 0.85rem;
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 1rem + 0.35vw, 1.35rem);
  line-height: 1.48;
}

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

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

.post-card p {
  margin: 0 0 1.2rem;
  color: var(--color-muted);
  font-size: 0.9375rem;
  line-height: 1.75;
}

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

.post-card-link::after {
  content: " →";
}

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

.blog-empty,
.blog-script-note {
  margin: 1.5rem 0 0;
  padding: 1rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-card);
  background: var(--color-canvas);
  color: var(--color-muted);
  text-align: center;
}

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

.article-page > .section:first-child,
.article-breadcrumb-section,
.breadcrumb-section {
  padding-top: 2rem;
  padding-bottom: 0;
}

.blog-breadcrumb,
nav.breadcrumb,
nav.breadcrumbs {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: 0.5rem;
  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;
}

.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-deep);
  opacity: 1;
}

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

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

.article-hero {
  padding-top: 0.75rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--color-line);
  background: var(--color-canvas);
}

.article-hero .article-wrap {
  width: 100%;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.65rem 0.9rem;
  margin-bottom: 0.875rem;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  line-height: 1.5;
}

.article-meta time,
.article-meta span {
  font-size: inherit;
}

.article-hero h1 {
  max-width: 100%;
  margin-block: 0.875rem 0.75rem;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 1.1rem + 1.4vw, 2rem);
  font-weight: 800;
  line-height: 1.32;
  letter-spacing: -0.025em;
}

.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-content {
  padding: 1.25rem var(--gutter) 3.25rem;
}

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

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

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

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

.prose h2 {
  margin: 2.5rem 0 1rem;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 1.2rem + 0.55vw, 1.5rem);
  line-height: 1.4;
}

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

.prose h3 {
  margin: 1.8rem 0 0.8rem;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: clamp(1.125rem, 1.05rem + 0.3vw, 1.25rem);
  line-height: 1.45;
}

.prose ul,
.prose ol {
  margin: 0 0 1.25rem;
  padding-left: 1.4rem;
}

.prose li {
  margin-bottom: 0.45rem;
}

.prose a:not([class*="btn"]):not([class*="button"]) {
  color: var(--color-accent-deep);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

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

.prose blockquote {
  margin: 1.5rem 0;
  padding: 0.9rem 1.1rem;
  border-left: 3px solid var(--color-accent);
  background: var(--color-panel);
  color: var(--color-muted);
}

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

.prose code {
  padding: 0.12em 0.35em;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-card);
  background: var(--color-panel-soft);
  color: var(--color-accent-deep);
  font-family: var(--font-mono);
  font-size: 0.9em;
}

.prose pre {
  max-width: 100%;
  margin: 1.5rem 0;
  overflow-x: auto;
  padding: 1rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-card);
  background: var(--color-panel-soft);
  color: var(--color-ink);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.7;
}

.prose pre code {
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: inherit;
  font-size: inherit;
}

.prose > section {
  padding: 0;
  margin: 0 0 2.5rem;
}

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

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

.download-cta-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  margin: 2.5rem 0 0;
  padding: clamp(1.25rem, 3vw, 1.75rem);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-card);
  background: var(--color-panel);
  box-shadow: var(--shadow-card);
}

.download-cta-card h3 {
  margin: 0 0 0.45rem;
  color: var(--color-ink);
  font-size: 1.25rem;
  line-height: 1.4;
}

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

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

#related-posts {
  width: min(100%, var(--article-width));
  margin: 0 auto;
  padding: 2.75rem 0 0;
  border-top: 1px solid var(--color-line);
}

#related-posts > h2 {
  margin: 0 0 1.25rem;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 1.2rem + 0.5vw, 1.5rem);
  line-height: 1.4;
}

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

.related-post-card {
  min-width: 0;
  padding: 1.2rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-card);
  background: var(--color-canvas);
  box-shadow: var(--shadow-card);
}

.related-post-card h3 {
  margin: 0 0 0.7rem;
  font-size: 1rem;
  line-height: 1.55;
}

.related-post-card p {
  display: -webkit-box;
  margin: 0;
  overflow: hidden;
  color: var(--color-muted);
  font-size: 0.875rem;
  line-height: 1.7;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
}

#post-nav {
  display: grid;
  width: min(100%, var(--article-width));
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin: 1.5rem auto 0;
  padding-bottom: 3rem;
}

.post-nav-link {
  display: flex;
  min-width: 0;
  flex-direction: column;
  gap: 0.45rem;
  padding: 1rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-card);
  background: var(--color-canvas);
  color: var(--color-ink);
  text-decoration: none;
  box-shadow: var(--shadow-card);
}

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

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

.post-nav-caption {
  color: var(--color-accent-deep);
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.post-nav-link strong {
  color: var(--color-ink);
  font-size: 0.9375rem;
  line-height: 1.55;
}

@media (max-width: 760px) {
  .blog-index-hero {
    padding-block: 4rem;
  }

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

  .blog-index-content {
    padding-block: 4rem;
  }

  .blog-list-heading {
    align-items: stretch;
    flex-direction: column;
    gap: 1.25rem;
  }

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

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

  .article-content {
    padding-top: 1.25rem;
  }

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

  .download-cta-card .button-row {
    width: 100%;
  }

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

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

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

@media (max-width: 480px) {
  .blog-filter {
    min-height: 2.5rem;
  }

  .post-card-meta,
  .related-post-meta {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.55rem;
  }

  .article-page > .section:first-child,
  .article-breadcrumb-section,
  .breadcrumb-section {
    padding-top: 1.25rem;
  }

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

  .prose {
    font-size: 0.96875rem;
  }
}

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