:root {
  --manual-hero-space-top: 88px;
  --manual-hero-space-bottom: 82px;
  --manual-body-space-bottom: 112px;
  --manual-chapter-space: 92px;
  --manual-copy-size: 17px;
  --manual-lead-size: 20px;
  --manual-small-size: 12px;
  --manual-spec-width: 390px;
  --manual-copy-width: 780px;
  --manual-line-width: 860px;
  --manual-gap-large: 72px;
  --manual-gap-medium: 28px;
  --manual-gap-small: 12px;
  --manual-panel-padding: 30px;
  --manual-code-size: 13px;
}

.manual-hero {
  max-width: 100%;
  overflow-x: clip;
  padding-top: var(--manual-hero-space-top);
  padding-bottom: var(--manual-hero-space-bottom);
  border-bottom: 1px solid var(--color-border);
  background:
    radial-gradient(closest-side at 78% 58%, var(--color-neutral-halo), transparent),
    linear-gradient(180deg, var(--color-bg-top), var(--color-bg));
}

.manual-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, var(--manual-copy-width)) minmax(300px, var(--manual-spec-width));
  align-items: end;
  justify-content: space-between;
  gap: var(--manual-gap-large);
}

.manual-hero-copy h1 {
  max-width: var(--manual-copy-width);
  margin: 18px 0 0;
  font-weight: 800;
}

.manual-lede {
  max-width: 40em;
  margin: 24px 0 0;
  font-size: var(--manual-lead-size);
}

.manual-actions {
  margin-top: 30px;
}

.manual-relation {
  max-width: 48em;
  margin: 22px 0 0;
  font-size: 14px;
}

.inline-link {
  display: inline;
  min-height: 0;
  margin-inline: 4px;
}

.manual-spec {
  padding: var(--manual-panel-padding);
  box-shadow: var(--shadow-far);
}

.manual-spec-head {
  display: flex;
  align-items: center;
  gap: 15px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--color-border);
}

.manual-spec-head img {
  width: 44px;
  height: 44px;
  padding: 8px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-panel-raised);
}

.manual-spec-head strong,
.manual-spec-head span {
  display: block;
}

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

.manual-spec-head span {
  margin-top: 2px;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: var(--manual-small-size);
}

.manual-spec dl {
  margin: 0;
}

.manual-spec dl div {
  display: grid;
  grid-template-columns: 66px minmax(0, 1fr);
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--color-border);
}

.manual-spec dl div:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.manual-spec dt {
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: var(--manual-small-size);
}

.manual-spec dd {
  margin: 0;
  color: var(--color-text);
  font-size: 13px;
  text-align: right;
}

.manual-body {
  padding-top: 54px;
  padding-bottom: var(--manual-body-space-bottom);
}

.manual-body > .toc-tabs {
  margin-bottom: 0;
}

.manual-section {
  position: relative;
  max-width: var(--manual-line-width);
  margin-inline: auto;
  padding-top: var(--manual-chapter-space);
  padding-bottom: var(--manual-chapter-space);
  border-bottom: 1px solid var(--color-border);
}

.chapter-mark {
  margin-bottom: 14px;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: var(--manual-small-size);
  letter-spacing: 0.08em;
}

.manual-section h2 {
  margin-bottom: 18px;
  font-weight: 800;
}

.chapter-lead {
  max-width: 42em;
  margin-bottom: 46px;
  color: var(--color-muted);
  font-size: var(--manual-lead-size);
}

.manual-section h3 {
  margin-top: 46px;
  margin-bottom: 14px;
  font-size: 24px;
}

.manual-section p,
.manual-section li {
  font-size: var(--manual-copy-size);
  line-height: 1.82;
}

.manual-section p {
  margin-bottom: 20px;
}

.manual-section .callout {
  margin-top: 30px;
  margin-bottom: 30px;
}

.manual-section .callout p {
  font-size: 15px;
  line-height: 1.7;
}

.manual-section pre {
  margin-top: 24px;
  margin-bottom: 24px;
  font-size: var(--manual-code-size);
}

.manual-table-wrap {
  margin-top: 30px;
  margin-bottom: 38px;
}

.manual-end {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: var(--manual-gap-medium);
  max-width: var(--manual-line-width);
  margin: var(--manual-chapter-space) auto 0;
  padding: var(--manual-panel-padding);
  box-shadow: var(--shadow-near);
}

.manual-end img {
  width: 54px;
  height: 54px;
  padding: 9px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, var(--color-highlight), transparent), var(--color-panel-raised);
}

.manual-end h2 {
  margin-bottom: 5px;
  font-size: 26px;
}

.manual-end p {
  margin-bottom: 0;
  font-size: 14px;
}

@media (max-width: 1024px) {
  :root {
    --manual-gap-large: 42px;
  }

  .manual-hero-grid {
    grid-template-columns: minmax(0, 1fr) minmax(280px, 340px);
  }
}

@media (max-width: 768px) {
  :root {
    --manual-hero-space-top: 62px;
    --manual-hero-space-bottom: 64px;
    --manual-chapter-space: 72px;
    --manual-copy-size: 16px;
    --manual-lead-size: 18px;
  }

  .manual-hero-grid {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .manual-spec {
    max-width: 100%;
  }

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

  .manual-end .btn {
    grid-column: 1 / -1;
    width: 100%;
  }
}

@media (max-width: 640px) {
  :root {
    --manual-hero-space-top: 44px;
    --manual-hero-space-bottom: 52px;
    --manual-body-space-bottom: 76px;
    --manual-chapter-space: 62px;
    --manual-panel-padding: 22px;
  }

  .manual-lede {
    margin-top: 18px;
  }

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

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

  .manual-spec dl div {
    grid-template-columns: 58px minmax(0, 1fr);
  }

  .manual-section h3 {
    margin-top: 38px;
    font-size: 21px;
  }

  .chapter-lead {
    margin-bottom: 38px;
  }

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

  .manual-end img {
    margin-bottom: 2px;
  }

  .manual-end .btn {
    grid-column: auto;
  }
}