.manual-hero {
  position: relative;
  max-width: 100%;
  overflow-x: clip;
  border-bottom: 1px solid var(--color-border);
  background: linear-gradient(180deg, var(--color-hero-top), var(--color-hero-bottom));
  padding-top: 72px;
  padding-bottom: 72px;
}

.manual-hero::before {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(var(--color-accent-08) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-accent-08) 1px, transparent 1px);
  background-size: 34px 34px;
  content: "";
  opacity: .48;
}

.manual-hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(300px, .75fr);
  gap: 72px;
  align-items: center;
}

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

.manual-hero-copy .section-kicker {
  margin-top: 22px;
  margin-bottom: 14px;
}

.manual-hero-copy h1 {
  max-width: 10em;
  margin-bottom: 0;
}

.manual-hero-lede {
  max-width: 44rem;
  margin-top: 26px;
  color: var(--color-muted);
  font-size: 19px;
}

.manual-hero-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.manual-index-card {
  position: relative;
  border: 1px solid var(--color-paper-12);
  border-radius: var(--radius-block);
  background: linear-gradient(160deg, var(--color-ink-panel), var(--color-ink-deep));
  color: var(--color-paper);
  padding: 36px;
  box-shadow: var(--shadow-accent);
}

.manual-index-card::before {
  position: absolute;
  top: 18px;
  right: 20px;
  width: 54px;
  height: 54px;
  border: 1px solid var(--color-accent-55);
  border-radius: 50%;
  content: "";
  box-shadow: inset 0 0 0 8px var(--color-paper-06);
}

.manual-index-card .mono-label {
  color: var(--color-amber);
}

.manual-index-card h2 {
  max-width: 8em;
  margin: 24px 0 18px;
  color: var(--color-paper);
  font-size: clamp(30px, 3vw, 42px);
}

.manual-index-card p {
  color: var(--color-paper-72);
}

.manual-fact-row {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 25px;
}

.manual-index-card .fact-chip {
  border-color: var(--color-accent-55);
  background: var(--color-paper-06);
  color: var(--color-paper);
}

.manual-article {
  padding-top: 58px;
  padding-bottom: var(--space-section);
}

.manual-introduction {
  max-width: 920px;
  margin-bottom: 38px;
  border-left: 4px solid var(--color-accent);
  padding: 6px 0 6px 26px;
}

.manual-introduction p {
  color: var(--color-muted);
  font-size: 17px;
}

.manual-introduction a,
.manual-section a {
  color: var(--color-accent-dark);
  font-weight: 650;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.manual-article .toc-tabs {
  top: 12px;
}

.manual-section {
  display: grid;
  grid-template-columns: minmax(0, 820px);
  justify-content: center;
  padding-top: 70px;
  padding-bottom: 70px;
  border-bottom: 1px solid var(--color-border);
}

.manual-section-head {
  margin-bottom: 10px;
}

.manual-chapter {
  display: inline-flex;
  min-height: 28px;
  align-items: center;
  border: 1px solid var(--color-accent-55);
  border-radius: var(--radius-pill);
  background: var(--color-accent-08);
  color: var(--color-accent-dark);
  padding: 4px 11px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .1em;
}

.manual-section h2 {
  margin-top: 18px;
  margin-bottom: 22px;
}

.manual-section h3 {
  margin-top: 42px;
  margin-bottom: 14px;
  font-size: clamp(24px, 2.3vw, 30px);
}

.manual-section p,
.manual-section li {
  color: var(--color-muted);
}

.manual-section p {
  margin-bottom: 18px;
}

.manual-section .callout,
.manual-section .table-scroll,
.manual-section pre {
  margin-top: 30px;
  margin-bottom: 30px;
}

.manual-section .callout p {
  margin-bottom: 0;
}

.manual-section pre {
  border-color: var(--color-accent-22);
  box-shadow: inset 0 1px 0 var(--color-paper-06);
}

.manual-section code {
  font-size: 13px;
}

.manual-closing {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 36px;
  align-items: center;
  margin-top: 72px;
  border-radius: var(--radius-block);
  background: linear-gradient(135deg, var(--color-ink-panel), var(--color-ink-deep));
  color: var(--color-paper);
  padding: 38px;
  box-shadow: var(--shadow-accent);
}

.manual-closing .mono-label {
  color: var(--color-amber);
}

.manual-closing h2 {
  margin: 12px 0 10px;
  color: var(--color-paper);
  font-size: clamp(30px, 3.5vw, 44px);
}

.manual-closing p {
  max-width: 48rem;
  color: var(--color-paper-72);
}

@media (max-width: 980px) {
  .manual-hero-grid {
    grid-template-columns: 1fr;
    gap: 44px;
  }

  .manual-index-card {
    max-width: 680px;
  }
}

@media (max-width: 768px) {
  .manual-hero {
    padding-top: 54px;
    padding-bottom: 54px;
  }

  .manual-index-card {
    padding: 28px;
  }

  .manual-index-card::before {
    display: none;
  }

  .manual-article {
    padding-top: 42px;
  }

  .manual-section {
    padding-top: 56px;
    padding-bottom: 56px;
  }

  .manual-closing {
    grid-template-columns: 1fr;
    margin-top: 56px;
    padding: 30px;
  }
}

@media (max-width: 640px) {
  .manual-hero {
    padding-top: 42px;
    padding-bottom: 42px;
  }

  .manual-hero-grid {
    gap: 34px;
  }

  .manual-hero-lede {
    font-size: 17px;
  }

  .manual-hero-links {
    align-items: stretch;
    flex-direction: column;
  }

  .manual-hero-links .button {
    width: 100%;
  }

  .manual-index-card {
    padding: 24px;
  }

  .manual-introduction {
    padding-left: 18px;
  }

  .manual-introduction p {
    font-size: 16px;
  }

  .manual-section {
    padding-top: 48px;
    padding-bottom: 48px;
  }

  .manual-section h3 {
    margin-top: 34px;
  }

  .manual-closing {
    padding: 24px;
  }

  .manual-closing .button {
    width: 100%;
  }
}