@layer page {
/* ============================================================
   BLOG
   Vibrant, high-contrast cards with whitish decorative overlays.
   ============================================================ */

.blog-header {
  padding: clamp(4rem, 10vh, 8rem) var(--gutter) clamp(2rem, 4vh, 4rem);
  max-width: 72rem;
  margin: 0 auto;
  h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 200;
    color: var(--text-0);
    letter-spacing: -0.03em;
    line-height: 1.1;
    margin-bottom: var(--space-4);
  }
  p { font-size: var(--text-lg); color: var(--text-2); max-width: 36rem; }
}

/* --- Visual Foundations --- */
.blog-featured-visual,
.blog-article-thumb,
.blog-highlight-visual,
.post-hero-band {
  position: relative;
  overflow: hidden;
}

.blog-featured-visual {
  aspect-ratio: 4/3;
  border-radius: var(--radius-lg);
}

.blog-article-thumb {
  aspect-ratio: 16/10;
  border-radius: var(--radius-md);
  margin-bottom: var(--space-4);
  background-blend-mode: soft-light, normal;
}

.blog-highlight-visual {
  aspect-ratio: 16/10;
  border-radius: var(--radius-lg);
}

.blog-illustration {
  width: 100%;
  height: 100%;
  background-image:
    url("/images/blog-pattern.svg"),
    linear-gradient(135deg,
      oklch(0.65 0.30 var(--ah)) 0%,
      oklch(0.50 0.25 calc(var(--ah) + 30)) 100%);
  background-size: cover, auto;
  background-position: center;
  background-repeat: no-repeat;
  background-blend-mode: overlay, normal;
}

.blog-highlight {
  --ah: 260;
  position: relative;
  max-width: 72rem;
  margin: 0 auto;
  padding: clamp(3rem, 6vh, 6rem) var(--gutter);
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;

  &.reverse {
    .blog-highlight-visual { order: 2; }
    .blog-highlight-text { order: 1; }
  }
}

.blog-highlight-text {
  min-width: 0;
}

/* --- Grid & Layout --- */
.blog-grid {
  max-width: 72rem;
  margin: 0 auto;
  padding: clamp(2rem, 4vh, 4rem) var(--gutter);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 4vw, 4rem);
}

.blog-article {
  --ah: 260;
  position: relative;
  display: block;
  transition: transform var(--duration-normal) var(--ease-out-expo);
  &:hover { transform: translateY(-4px); }
  h3 {
    font-size: var(--text-xl);
    font-weight: 400;
    color: var(--text-0);
    line-height: 1.3;
    margin-bottom: var(--space-2);
  }
  .article-excerpt { font-size: var(--text-sm); color: var(--text-2); margin-bottom: var(--space-3); }
  .meta { font-family: var(--font-mono); font-size: 0.7rem; color: var(--text-3); }
}

.blog-featured {
  --ah: 260;
  position: relative;
  max-width: 72rem;
  margin: 0 auto;
  padding: clamp(3rem, 6vh, 6rem) var(--gutter);
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
  h2 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); font-weight: 300; color: var(--text-0); margin-bottom: var(--space-4); }
}

.read-link {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: oklch(0.80 0.26 var(--ah));
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  &:hover { gap: var(--space-3); color: var(--text-0); }
}

.blog-newsletter {
  max-width: 72rem;
  margin: 0 auto;
  padding: clamp(4rem, 8vh, 8rem) var(--gutter);
  text-align: center;
  background: radial-gradient(circle at 50% 50%, oklch(0.12 0.05 200 / 0.3), transparent 70%);
}

/* --- Post Show Page Layout --- */
.post-wrapper {
  --ah: 260;
  --post-accent: oklch(0.75 0.20 var(--ah));
  --post-link: var(--rainbow-violet);
  max-width: 52rem;
  margin: 0 auto;
  padding: var(--space-10) var(--gutter) var(--space-20);

  > .breadcrumb { color: var(--post-accent); }
}

.post-hero {
  margin-bottom: var(--space-20);
  position: relative;
  text-align: center;
}

.post-meta {
  justify-content: center;
  margin-top: var(--space-6);
  .sep { display: inline-block; width: 4px; height: 4px; border-radius: 50%; background: var(--text-3); vertical-align: middle; margin-inline: var(--space-2); }
  .post-date { font-size: var(--text-xs); color: var(--text-2); }
}

.post-title {
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 500;
  letter-spacing: -0.04em;
  line-height: 1.05;
  color: var(--text-0);
  margin-bottom: var(--space-8);
  /* balance, not pretty: these are short display headings, and the two were
     declared back to back so pretty silently won. */
  text-wrap: balance;

  strong {
    color: var(--post-accent);
    font-weight: inherit;
  }
}

.post-subtitle {
  font-size: var(--text-2xl);
  font-weight: 400;
  color: var(--text-0);
  line-height: 1.4;
  text-wrap: balance;
}

.post-hero-band {
  height: 14rem;
  margin-bottom: var(--space-8);
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 80px -10px oklch(0 0 0 / 0.5);
}

.post-body {
  font-size: 1.25rem;
  line-height: 1.95;
  color: var(--text-0);
  font-weight: 300;

  p { margin-bottom: var(--space-10); }

  a:not(.heading-permalink) {
    color: var(--post-link);
    text-decoration: underline;
    text-decoration-color: color-mix(in oklab, var(--post-link) 55%, transparent);
    text-underline-offset: var(--space-1);
    transition: color var(--duration-fast), text-decoration-color var(--duration-fast);

    &:hover {
      color: var(--text-0);
      text-decoration-color: var(--post-link);
    }

    &:focus-visible {
      outline: 2px solid var(--post-link);
      outline-offset: var(--space-1);
      border-radius: var(--radius-sm);
    }
  }

  h2 {
    font-size: 2.25rem;
    color: var(--text-0);
    margin-top: var(--space-24);
    margin-bottom: var(--space-8);
    font-weight: 400;
    letter-spacing: -0.02em;
    &:hover .heading-permalink { opacity: 1; }
  }
  h3 {
    font-size: 1.75rem;
    color: var(--text-0);
    margin-top: var(--space-16);
    margin-bottom: var(--space-6);
    font-weight: 400;
    &:hover .heading-permalink { opacity: 1; }
  }

  .heading-permalink {
    margin-left: var(--space-3);
    color: var(--text-3);
    text-decoration: none;
    opacity: 0;
    transition: opacity var(--duration-fast), color var(--duration-fast);
    &:hover { color: var(--text-1); }
  }

  > pre { margin-block: var(--space-12); }

  > .code-block {
    margin-inline: calc(var(--space-6) * -1);
    margin-block: var(--space-12);
  }

  code:not(pre code) {
    background: var(--surface-1);
    padding: 0.2em 0.4em;
    border-radius: var(--radius-sm);
    font-size: 0.85em;
    color: var(--post-accent);
  }

  ul, ol {
    margin-bottom: var(--space-10);
    padding-inline-start: var(--space-8);
  }

  ul { list-style: disc; }
  ol { list-style: decimal; }

  li {
    margin-bottom: var(--space-4);

    &::marker { color: var(--post-accent); }
  }

  .table-of-contents {
    list-style: none;
    padding: var(--space-6) var(--space-8);
    margin-bottom: var(--space-12);
    background: var(--surface-1);
    border-radius: var(--radius-lg);
    font-size: var(--text-base);
    font-weight: 400;

    li { margin-bottom: var(--space-2); }
    ul { list-style: none; padding-left: var(--space-6); margin-top: var(--space-2); margin-bottom: 0; }
    a { color: var(--text-2); text-decoration: none; }
    a:hover { color: var(--text-0); }
  }
}

.post-author {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  padding-top: var(--space-16);
  border-top: 1px solid var(--border-subtle);
  margin-top: var(--space-20);
}

.post-author-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: oklch(0.75 0.20 var(--ah));
  color: oklch(0.10 0 0);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 700;
}

.post-author-label { font-size: 11px; text-transform: uppercase; color: var(--text-3); font-weight: 700; letter-spacing: 0.05em; }
.post-author-name { font-size: var(--text-lg); font-weight: 500; color: var(--text-0); }

.post-related {
  background: var(--surface-0);
  padding-block: var(--space-24);
}

.post-related-header {
  max-width: 52rem;
  margin: 0 auto var(--space-8);
  padding-inline: var(--gutter);

  h2 {
    text-wrap: balance;
  }
}

.post-related-list {
  max-width: 52rem;
  margin: 0 auto;
  padding-inline: var(--gutter);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.post-related-row {
  display: grid;
  grid-template-columns: var(--space-24) minmax(0, 1fr) auto;
  gap: var(--space-6);
  align-items: center;
  padding: var(--space-3);
  color: var(--text-1);
  text-decoration: none;
  border-radius: var(--radius-lg);
  transition: background var(--duration-fast), color var(--duration-fast);

  &:hover {
    color: var(--text-0);

    .post-related-arrow {
      transform: translateX(var(--space-1));
    }
  }
}

.post-related-thumb {
  display: block;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border-radius: var(--radius-md);

  .blog-illustration {
    display: block;
    inline-size: 100%;
    block-size: 100%;
  }
}

.post-related-copy {
  display: flex;
  min-width: 0;
  flex-direction: column;
  gap: var(--space-2);

  strong {
    color: inherit;
    font-size: var(--text-lg);
    font-weight: var(--weight-medium);
  }
}

.post-related-meta {
  color: var(--text-3);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.post-related-arrow {
  color: var(--accent-text);
  font-size: var(--text-xl);
  transition: transform var(--duration-fast);
}

@media (width <= 900px) {
  .blog-featured { grid-template-columns: 1fr; }
  .blog-grid { grid-template-columns: 1fr; }
  .blog-highlight { grid-template-columns: 1fr; }
}

@media (width <= 600px) {
  .post-related-row {
    grid-template-columns: var(--space-20) minmax(0, 1fr) auto;
    gap: var(--space-4);
    padding-inline: 0;
  }

  .post-related-thumb {
    aspect-ratio: 4 / 3;
  }
}

.post-hero-glow {
  position: absolute;
  top: -150px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 600px;
  background:
    radial-gradient(circle at 60% 40%, oklch(0.65 0.30 var(--ah) / 0.15) 0%, transparent 60%),
    radial-gradient(circle at 30% 60%, oklch(0.55 0.25 calc(var(--ah) + 40) / 0.10) 0%, transparent 55%);
  filter: blur(100px);
  pointer-events: none;
  opacity: 0.8;
  z-index: -1;
}
}