.manual-hero {
  position: relative;
  overflow-x: clip;
  padding-top: 84px;
  padding-bottom: 78px;
  border-bottom: 1px solid var(--color-border);
  background:
    linear-gradient(90deg, var(--color-bg), var(--color-panel)),
    var(--color-bg);
}

.manual-hero::before {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--color-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-border) 1px, transparent 1px);
  background-size: 48px 48px;
  content: '';
  opacity: 0.16;
  pointer-events: none;
}

.manual-hero::after {
  position: absolute;
  top: 12%;
  right: 8%;
  width: 34%;
  aspect-ratio: 1;
  border: 1px solid var(--color-accent-deep);
  border-radius: var(--radius-round);
  background: radial-gradient(circle, var(--color-accent-haze), var(--color-accent-clear) 68%);
  content: '';
  opacity: 0.34;
  pointer-events: none;
}

.manual-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 0.78fr);
  align-items: center;
  gap: 76px;
}

.manual-heading {
  max-width: 720px;
}

.manual-heading .badge {
  margin-bottom: 22px;
}

.manual-heading h1 {
  margin-top: 0;
  margin-bottom: 24px;
}

.manual-heading .lead {
  margin-bottom: 0;
}

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

.manual-console {
  position: relative;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-panel);
  box-shadow: var(--edge-highlight);
}

.manual-console::before {
  position: absolute;
  top: -1px;
  left: 24px;
  width: 86px;
  height: 2px;
  background: var(--color-accent);
  content: '';
}

.manual-console-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.06em;
}

.manual-console-state {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--color-success);
}

.manual-scope {
  margin: 0;
  padding: 8px 20px;
}

.manual-scope div {
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr);
  gap: 18px;
  padding-top: 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--color-border);
}

.manual-scope div:last-child {
  border-bottom: 0;
}

.manual-scope dt {
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 11px;
}

.manual-scope dd {
  margin: 0;
  color: var(--color-text);
  font-size: 13px;
  overflow-wrap: anywhere;
}

.manual-console-note {
  margin: 0;
  padding: 16px 20px 20px;
  border-top: 1px solid var(--color-border);
  font-size: 12px;
}

.manual-nav-section {
  padding-top: 30px;
  padding-bottom: 28px;
  background: var(--color-bg);
}

.manual-document {
  border-top: 1px solid var(--color-border);
}

.manual-chapter {
  padding-top: var(--section-space);
  padding-bottom: var(--section-space);
  border-bottom: 1px solid var(--color-border);
}

.manual-chapter:nth-child(even) {
  background: var(--color-panel);
}

.manual-chapter .content-wrap {
  max-width: calc(900px + (var(--gutter) * 2));
}

.manual-chapter h2 {
  max-width: 800px;
  margin-bottom: 40px;
}

.manual-chapter h3 {
  margin-top: 46px;
  margin-bottom: 14px;
  padding-top: 4px;
  color: var(--color-text);
  font-size: 22px;
}

.manual-chapter p,
.manual-chapter li {
  font-size: 16px;
  line-height: 1.9;
}

.manual-chapter p {
  margin-bottom: 22px;
}

.manual-chapter a:not(.btn-primary):not(.btn-secondary):not(.btn-ghost) {
  color: var(--color-text);
  text-decoration: underline;
  text-decoration-color: var(--color-accent-deep);
  text-underline-offset: 4px;
}

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

.manual-chapter .compare-table,
.manual-chapter .route-table {
  min-width: 760px;
}

.manual-chapter pre {
  margin-top: 34px;
  margin-bottom: 34px;
  line-height: 1.75;
}

.manual-checklist {
  display: grid;
  gap: 12px;
  margin: 26px 0 36px;
  padding: 0;
  list-style: none;
}

.manual-checklist li {
  position: relative;
  padding: 15px 18px 15px 42px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-panel);
  color: var(--color-text-muted);
}

.manual-checklist li::before {
  position: absolute;
  top: 21px;
  left: 18px;
  width: 8px;
  height: 8px;
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-round);
  background: var(--color-accent-deep);
  content: '';
}

.manual-end-links {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 48px;
}

.manual-end-links a {
  display: flex;
  min-height: 112px;
  flex-direction: column;
  justify-content: space-between;
  gap: 18px;
  padding: 20px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-panel);
  text-decoration: none;
  transition:
    border-color var(--transition-fast),
    background-color var(--transition-fast),
    transform var(--transition-fast);
}

.manual-end-links a:hover {
  border-color: var(--color-text-muted);
  background: var(--color-panel-raised);
  transform: translateY(-2px);
}

.manual-end-links span {
  color: var(--color-text-muted);
  font-size: 10px;
  letter-spacing: 0.07em;
}

.manual-end-links strong {
  color: var(--color-text);
  font-size: 16px;
}

@media (max-width: 1000px) {
  .manual-hero-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 48px;
  }

  .manual-console {
    max-width: 720px;
  }

  .manual-hero::after {
    right: -12%;
    width: 56%;
  }
}

@media (max-width: 760px) {
  .manual-hero {
    padding-top: 58px;
    padding-bottom: 58px;
  }

  .manual-hero::after {
    display: none;
  }

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

  .manual-actions .btn-secondary,
  .manual-actions .btn-ghost {
    width: 100%;
  }

  .manual-end-links {
    grid-template-columns: minmax(0, 1fr);
  }

  .manual-chapter h3 {
    margin-top: 38px;
    font-size: 20px;
  }
}

@media (max-width: 520px) {
  .manual-scope div {
    grid-template-columns: minmax(0, 1fr);
    gap: 5px;
  }

  .manual-console-head {
    align-items: flex-start;
    flex-direction: column;
  }

  .manual-chapter p,
  .manual-chapter li {
    font-size: 15px;
    line-height: 1.86;
  }

  .manual-chapter .callout {
    padding: 20px 18px 20px 24px;
  }
}