/* Reading layouts share the portfolio's type and palette, with a calmer measure. */
.article-page .container {
  max-width: 1020px;
  margin: auto;
  padding: 30px var(--gutter) 100px;
}
.article-page .back-link,
.article-page .top-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-size: var(--small);
  color: var(--accent);
  text-decoration: underline;
}
.article-page .hero {
  padding: 60px 0 48px;
  background: transparent;
}
.article-page .eyebrow {
  font-size: var(--body);
  color: var(--secondary);
  margin-bottom: 24px;
}
.article-page h1 {
  font-size: clamp(2.35rem, 4.7vw, 4.75rem);
  line-height: 1.06;
  letter-spacing: -0.055em;
  max-width: 22ch;
}
.article-page .meta,
.article-page .article-meta {
  font-size: var(--small);
  color: var(--secondary);
  margin-top: 24px;
}
.article-page .lead,
.article-page .sub {
  font-size: var(--lead);
  line-height: 1.6;
  margin-top: 32px;
  max-width: 40ch;
}
.article-page article {
  max-width: 740px;
  margin: auto;
}
.article-page article h2 {
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  line-height: 1.25;
  letter-spacing: -0.03em;
  margin: 48px 0 20px;
}
.article-page article h3 {
  font-size: var(--lead);
  line-height: 1.3;
  letter-spacing: -0.02em;
  margin: 32px 0 16px;
}
.article-page article p {
  margin-block: 18px;
}
.article-page article ul {
  padding-left: 22px;
  margin-block: 20px;
}
.article-page article li {
  margin-block: 10px;
  padding-left: 4px;
}
.article-page .callout {
  background: var(--surface);
  padding: 26px;
  margin-block: 32px;
}
.article-page .figure {
  background: var(--surface);
  padding: 26px;
  margin-block: 40px;
  max-width: 100%;
  overflow: hidden;
}
.article-page .figure-title {
  font-weight: 600;
  font-size: var(--body);
}
.article-page .caption {
  font-size: var(--small);
  color: var(--secondary);
}
.article-page .figure svg {
  max-width: 100%;
  height: auto;
  display: block;
}
.article-page .mermaid {
  font-size: var(--small);
  overflow-wrap: anywhere;
}
.article-page .mini-grid,
.article-page .stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.article-page .metric,
.article-page .stat {
  background: var(--ink);
  padding: 20px;
}
.article-page .k {
  font-size: var(--small);
  color: var(--secondary);
}
.article-page .v {
  font-size: var(--lead);
  color: var(--text);
  font-weight: 500;
  margin-top: 10px;
}
.article-index .container {
  max-width: 1440px;
}
.article-index .articles-grid {
  display: grid;
  gap: 30px;
  margin-top: 20px;
}
.article-index .article-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px 8%;
  background: var(--surface);
  padding: 40px;
  transition:
    background 180ms,
    transform 180ms var(--ease);
}
.article-index .article-card:hover {
  background: var(--ink);
  transform: translateX(4px);
}
.article-index .article-title {
  grid-row: 1/4;
  font-size: clamp(1.5rem, 2.3vw, 2.25rem);
  line-height: 1.2;
  letter-spacing: -0.04em;
}
.article-index .article-meta {
  margin: 0;
}
.article-index .article-summary {
  font-size: var(--body);
}
.article-index .tag-row {
  display: flex;
  gap: 8px 18px;
  flex-wrap: wrap;
  font-size: var(--small);
  color: var(--secondary);
}
@media (max-width: 640px) {
  .article-page .container {
    padding-top: 20px;
  }
  .article-page .hero {
    padding: 40px 0;
  }
  .article-page h1 {
    font-size: 32px;
    max-width: none;
  }
  .article-page .lead,
  .article-page .sub {
    font-size: 20px;
  }
  .article-page .figure {
    padding: 16px;
    margin-inline: 0;
  }
  .article-page .mini-grid,
  .article-page .stats-grid {
    grid-template-columns: 1fr;
  }
  .article-index .article-card {
    grid-template-columns: 1fr;
    padding: 26px 22px;
    gap: 18px;
  }
  .article-index .article-title {
    grid-row: auto;
    font-size: 25px;
  }
}