/* Article-first reading layout: generous type and line length, restrained brand purple. */
:root {
  --brand-purple: #8a63c6;
  --brand-purple-soft: #d8c4f2;
}

.topbar nav a:focus-visible,
.site-footer a:focus-visible,
.article-body a:focus-visible,
.reader-nav a:focus-visible {
  outline: 2px solid var(--brand-purple-soft);
  outline-offset: 3px;
}

.reader-layout {
  grid-template-columns: minmax(210px, 250px) minmax(0, 780px) minmax(170px, 210px);
  justify-content: center;
  gap: clamp(28px, 4vw, 64px);
}

.article-body {
  max-width: 780px;
}

.article-body h1 {
  max-width: 760px;
  font-size: clamp(36px, 4vw, 48px);
  line-height: 1.13;
  letter-spacing: -0.045em;
}

.article-summary {
  max-width: 700px;
  margin-top: 18px;
  font-size: 18px;
  line-height: 1.7;
}

.prose {
  max-width: 740px;
  font-size: 17px;
  line-height: 1.82;
  letter-spacing: .002em;
}

.prose p,
.prose ul,
.prose ol,
.prose blockquote {
  margin-block: 0 22px;
}

.prose h2 {
  margin: 42px 0 14px;
  font-size: 25px;
  line-height: 1.3;
  letter-spacing: -.025em;
  scroll-margin-top: 28px;
}

.prose h3 {
  margin: 30px 0 10px;
  font-size: 20px;
  line-height: 1.4;
  scroll-margin-top: 28px;
}

.prose li {
  margin: 9px 0;
  padding-left: 4px;
}

.prose li::marker {
  color: var(--brand-purple-soft);
}

.prose a,
.text-link,
.site-footer a {
  color: var(--brand-purple-soft);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.prose a:hover,
.text-link:hover,
.site-footer a:hover {
  color: #fff;
}

.prose blockquote {
  border-left-color: #f59e0b;
  background: rgb(245 158 11 / 11%);
  padding: 17px 20px;
  border-radius: 0 12px 12px 0;
}

.prose blockquote p { color: #f5dfba; }
.prose blockquote strong { color: #ffad32; }

.reader-nav .nav-topic {
  font-size: 13px;
  line-height: 1.5;
}

.nav-group-title,
.toc-title {
  font-size: 12px;
  letter-spacing: .06em;
}

.site-footer {
  gap: 16px 28px;
  flex-wrap: wrap;
}

@media (max-width: 1050px) {
  .reader-layout {
    grid-template-columns: 210px minmax(0, 780px);
    gap: 28px;
  }

  .toc { display: none; }
}

@media (max-width: 760px) {
  .reader-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 0;
  }

  .article-body { max-width: none; }
  .article-body h1 { font-size: clamp(32px, 9vw, 40px); }
  .article-summary { font-size: 16px; }
  .prose { font-size: 16px; line-height: 1.78; }
  .prose h2 { margin-top: 34px; font-size: 23px; }
  .prose h3 { font-size: 19px; }
}

@media (prefers-reduced-motion: reduce) {
  .prose a { scroll-behavior: auto; }
}