:root {
  --blog-hero-width: 48rem;
  --blog-card-min-width: 18rem;
  --blog-related-min-width: 18.75rem;
  --blog-copy-size: 1rem;
  --blog-small-size: 0.8125rem;
  --blog-index-title-size: clamp(2rem, 1.4rem + 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 + 0.35vw, 1.25rem);
}

.blog-hero {
  padding-block: clamp(4rem, 9vw, 7rem) clamp(3rem, 7vw, 5rem);
  background: var(--color-page);
  color: var(--color-ink);
  text-align: center;
}

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

.blog-hero__eyebrow,
.blog-index-head__label {
  margin: 0 0 0.75rem;
  color: var(--color-brand-dark);
  font-family: var(--font-mono);
  font-size: var(--blog-small-size);
  font-weight: 700;
  letter-spacing: 0.04em;
}

.blog-hero h1 {
  max-width: 100%;
  margin: 0;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: var(--blog-index-title-size);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.035em;
}

.blog-hero__lead {
  max-width: 38rem;
  margin: 1.25rem auto 0;
  color: var(--color-muted);
  font-size: var(--blog-lead-size);
  line-height: 1.75;
}

.blog-index-section {
  padding-block: 1rem var(--section-space);
  background: var(--color-page);
  color: var(--color-ink);
}

.blog-index-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 2rem;
  align-items: end;
  margin-bottom: 2.25rem;
}

.blog-index-head h2 {
  margin: 0;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: var(--blog-h2-size);
  line-height: 1.3;
}

.blog-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 0.625rem;
  justify-content: flex-end;
}

.blog-filter__button {
  min-height: 2.75rem;
  padding: 0.65rem 1rem;
  border: 0;
  border-radius: var(--radius-pill);
  background: var(--color-panel);
  color: var(--color-muted);
  font: inherit;
  font-size: 0.875rem;
  font-weight: 700;
  cursor: pointer;
}

.blog-filter__button:hover,
.blog-filter__button:focus-visible {
  background: var(--color-panel-strong);
  color: var(--color-brand-dark);
}

.blog-filter__button.is-active {
  background: var(--color-brand);
  color: var(--color-inverse);
}

.blog-filter__button:focus-visible {
  outline: 0.1875rem solid var(--color-mist);
  outline-offset: 0.125rem;
}

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

.post-card {
  position: relative;
  display: flex;
  min-width: 0;
  min-height: 19rem;
  flex-direction: column;
  padding: clamp(1.5rem, 3vw, 2rem);
  border-radius: var(--radius-xl);
  background: var(--color-panel);
  color: var(--color-ink);
}

.post-card:nth-child(4n + 2),
.post-card:nth-child(4n + 3) {
  background: var(--color-panel-strong);
  color: var(--color-ink);
}

.post-card__meta,
.related-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1rem;
  align-items: center;
  margin-bottom: 1.125rem;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: var(--blog-small-size);
  line-height: 1.5;
}

.post-card__tag,
.related-card__meta span {
  color: var(--color-brand-dark);
  font-weight: 700;
}

.post-card h3 {
  margin: 0;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 1.05rem + 0.6vw, 1.625rem);
  font-weight: 800;
  line-height: 1.42;
  letter-spacing: -0.018em;
}

.post-card p {
  margin: 1rem 0 1.5rem;
  color: var(--color-muted);
  font-size: var(--blog-copy-size);
  line-height: 1.75;
}

.post-card__link,
.related-card__link {
  margin-top: auto;
  color: var(--color-brand-dark);
  font-weight: 800;
  text-decoration: none;
}

.post-card__link::after,
.related-card__link::after {
  content: " →";
}

.post-card__link:hover,
.related-card__link:hover {
  color: var(--color-brand);
  text-decoration: underline;
  text-underline-offset: 0.25rem;
}

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

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

.article-breadcrumb-shell,
.blog-breadcrumb-shell {
  padding-top: min(2rem, 4vw);
}

.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: var(--blog-small-size);
  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-brand-dark);
  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"] {
  flex: 0 1 auto;
  min-width: 0;
  max-width: 30ch;
  overflow: hidden;
  color: var(--color-muted);
  text-overflow: ellipsis;
}

.article-hero {
  padding-block: 0 2.25rem;
  background: var(--color-page);
  color: var(--color-ink);
}

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

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  align-items: center;
  margin: 0 0 0.875rem;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: var(--blog-small-size);
  line-height: 1.5;
}

.article-meta__tag {
  color: var(--color-brand-dark);
  font-weight: 700;
}

.article-hero h1 {
  max-width: 100%;
  margin-block: 0.875rem 0.75rem;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: var(--blog-article-title-size);
  font-weight: 800;
  line-height: 1.32;
  letter-spacing: -0.025em;
}

.article-lead {
  margin: 0.9rem 0 0;
  color: var(--color-muted);
  font-size: var(--blog-lead-size);
  line-height: 1.7;
}

.article-body {
  padding-block: 0 3rem;
  background: var(--color-page);
  color: var(--color-ink);
}

.article-body-section {
  padding-block: 0 2.75rem;
}

.article-body-section + .article-body-section {
  padding-top: 0;
}

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

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

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

.prose h2 {
  max-width: 100%;
  margin: 2.75rem 0 1rem;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: var(--blog-h2-size);
  font-weight: 800;
  line-height: 1.4;
  letter-spacing: -0.015em;
}

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

.prose h3 {
  max-width: 100%;
  margin: 2rem 0 0.75rem;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: var(--blog-h3-size);
  font-weight: 800;
  line-height: 1.45;
}

.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-dark);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.2em;
}

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

.prose code {
  border-radius: var(--radius-sm);
  background: var(--color-panel-strong);
  color: var(--color-ink);
  font-family: var(--font-mono);
  font-size: 0.9em;
}

.prose :not(pre) > code {
  padding: 0.15rem 0.4rem;
}

.prose pre {
  max-width: 100%;
  overflow-x: auto;
  padding: 1.25rem;
  border-radius: var(--radius-lg);
  background: var(--color-window-side);
  color: var(--color-window-side-text);
  font-family: var(--font-mono);
  line-height: 1.7;
}

.prose pre code {
  padding: 0;
  background: transparent;
  color: inherit;
}

.prose blockquote {
  padding: 0.25rem 0 0.25rem 1.25rem;
  border-left: 0.25rem solid var(--color-mist);
  color: var(--color-muted);
}

.end-download-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1.5rem;
  align-items: center;
  margin-top: 2.5rem;
  padding: clamp(1.5rem, 4vw, 2.25rem);
  border-radius: var(--radius-xl);
  background: var(--color-panel);
  color: var(--color-ink);
  box-shadow: var(--shadow-card);
}

.end-download-card__copy h2 {
  margin: 0;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: var(--blog-h2-size);
  line-height: 1.35;
}

.end-download-card__copy p {
  margin: 0.625rem 0 0;
  color: var(--color-muted);
  line-height: 1.7;
}

.end-download-card .button-row {
  flex-wrap: wrap;
  justify-content: flex-end;
}

#related-posts {
  padding-block: 2.75rem 1.5rem;
}

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

.related-post-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(var(--blog-related-min-width), 1fr));
  gap: 1.25rem;
}

.related-card {
  display: flex;
  min-width: 0;
  min-height: 16rem;
  flex-direction: column;
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  background: var(--color-panel);
  color: var(--color-ink);
}

.related-card h3 {
  margin: 0;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: var(--blog-h3-size);
  line-height: 1.45;
}

.related-card p {
  margin: 0.875rem 0 1.25rem;
  color: var(--color-muted);
  line-height: 1.7;
}

#post-nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  padding-block: 1.25rem 4rem;
}

.post-nav__card {
  display: flex;
  min-width: 0;
  min-height: 8rem;
  flex-direction: column;
  justify-content: center;
  padding: 1.25rem;
  border-radius: var(--radius-lg);
  background: var(--color-panel-strong);
  color: var(--color-ink);
  text-decoration: none;
}

.post-nav__card:hover {
  background: var(--color-panel);
  color: var(--color-brand-dark);
  box-shadow: var(--shadow-row);
}

.post-nav__label {
  margin-bottom: 0.5rem;
  color: var(--color-muted);
  font-size: var(--blog-small-size);
}

.post-nav__card strong {
  color: inherit;
  font-family: var(--font-display);
  font-size: 1rem;
  line-height: 1.55;
}

@media (min-width: 821px) {
  .related-post-grid .related-card:nth-child(3) {
    grid-column: 1 / -1;
  }
}

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

  .blog-filter {
    justify-content: flex-start;
  }

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

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

  .end-download-card .button-row {
    justify-content: flex-start;
  }
}

@media (max-width: 640px) {
  .blog-hero {
    padding-block: 3.5rem 2.75rem;
  }

  .blog-hero h1 {
    font-size: 1.875rem;
  }

  .blog-index-section {
    padding-top: 0.5rem;
  }

  .blog-filter {
    gap: 0.5rem;
  }

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

  .post-card {
    min-height: 0;
  }

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

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