.manual-hero {
  position: relative;
  overflow: clip;
  border-bottom: 1px solid var(--color-dark-line);
  background: var(--color-ink);
  color: var(--color-dark-text);
}

.manual-hero::after {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(var(--color-dark-dot) 1px, transparent 1px);
  background-size: 22px 22px;
  content: "";
  pointer-events: none;
}

.manual-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  min-height: 560px;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, .65fr);
  gap: clamp(48px, 8vw, 110px);
  align-items: center;
  padding-top: clamp(72px, 9vw, 120px);
  padding-bottom: clamp(72px, 9vw, 120px);
}

.manual-hero-copy {
  max-width: 760px;
}

.manual-hero .eyebrow {
  border-color: var(--color-dark-line);
  background: var(--color-ink-raised);
  color: var(--color-dark-soft);
}

.manual-hero h1 {
  color: var(--color-dark-text);
}

.manual-hero .lead {
  max-width: 720px;
  color: var(--color-dark-soft);
}

.manual-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.manual-relationship {
  max-width: 720px;
  margin: 28px 0 0;
  padding-top: 22px;
  border-top: 1px solid var(--color-dark-line);
  color: var(--color-dark-soft);
  font-size: 15px;
}

.manual-relationship a {
  color: var(--color-dark-text);
  font-weight: 750;
  text-decoration: underline;
  text-decoration-color: var(--color-signal);
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
}

.manual-route {
  padding: clamp(24px, 4vw, 38px);
  border: 1px solid var(--color-dark-line);
  border-radius: var(--radius-lg);
  background: var(--color-ink-raised);
}

.manual-route-label {
  margin-bottom: 24px;
  color: var(--color-dark-soft);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
}

.manual-route ol {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.manual-route li {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 16px;
  align-items: baseline;
  padding: 18px 0;
  border-top: 1px solid var(--color-dark-line);
}

.manual-route li:last-child {
  border-bottom: 1px solid var(--color-dark-line);
}

.manual-route span {
  color: var(--color-signal);
  font-family: var(--font-mono);
  font-size: 12px;
}

.manual-route strong {
  color: var(--color-dark-text);
  font-size: 15px;
}

.manual-layout {
  padding-top: 28px;
  padding-bottom: var(--section-space);
}

.manual-toc {
  margin-bottom: clamp(64px, 8vw, 104px);
}

.manual-article {
  width: min(100%, var(--reading-width));
  margin-inline: auto;
}

.manual-chapter {
  padding-top: clamp(32px, 5vw, 66px);
  padding-bottom: clamp(70px, 9vw, 120px);
  border-top: 3px solid var(--color-text);
}

.manual-chapter:last-child {
  padding-bottom: 0;
}

.manual-chapter-code {
  margin-bottom: 18px;
  color: var(--color-text-soft);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
}

.manual-chapter h2 {
  max-width: 720px;
  margin-bottom: 42px;
}

.manual-chapter h3 {
  margin-top: 46px;
  padding-top: 18px;
  border-top: 1px solid var(--color-line);
}

.manual-chapter h2 + h3 {
  margin-top: 0;
}

.manual-chapter p {
  margin-bottom: 1.25em;
  line-height: 1.9;
}

.manual-chapter .table-scroll {
  margin: 34px 0 42px;
}

.manual-chapter pre {
  margin: 28px 0;
}

.manual-chapter .callout {
  margin-top: 34px;
  margin-bottom: 38px;
}

.manual-check-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 36px 0 42px;
  border-top: 1px solid var(--color-line);
  border-left: 1px solid var(--color-line);
}

.manual-check-grid > div {
  min-width: 0;
  padding: 24px;
  border-right: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
  background: var(--color-surface);
}

.manual-check-grid strong {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-display);
  font-size: 18px;
}

.manual-check-grid p {
  margin: 0;
  color: var(--color-text-soft);
  font-size: 15px;
  line-height: 1.75;
}

@media (max-width: 900px) {
  .manual-hero-grid {
    grid-template-columns: 1fr;
  }

  .manual-route {
    max-width: 620px;
  }
}

@media (max-width: 768px) {
  .manual-hero-grid {
    min-height: 0;
    padding-top: 64px;
    padding-bottom: 64px;
  }

  .manual-route {
    padding: 22px;
  }

  .manual-toc {
    margin-bottom: 58px;
  }

  .manual-check-grid {
    grid-template-columns: 1fr;
  }

  .manual-chapter h3 {
    margin-top: 38px;
  }
}

@media (max-width: 640px) {
  .manual-facts {
    display: grid;
    justify-items: start;
  }

  .manual-route li {
    grid-template-columns: 54px 1fr;
    gap: 12px;
  }

  .manual-layout {
    padding-top: 18px;
  }

  .manual-chapter {
    padding-top: 28px;
    padding-bottom: 78px;
  }

  .manual-chapter h2 {
    margin-bottom: 34px;
  }

  .manual-check-grid > div {
    padding: 20px;
  }
}