.doc-hero {
  padding-top: clamp(72px, 10vw, 124px);
  padding-bottom: clamp(64px, 9vw, 108px);
}

.doc-hero .lead {
  margin-bottom: 0;
}

.doc-hero__note {
  margin-top: 34px;
  padding: 24px 26px;
  border-radius: var(--radius-lg);
  background: var(--color-bg);
  box-shadow: var(--shadow-card);
}

.doc-hero__note p {
  margin-bottom: 0;
  color: var(--color-muted);
}

.doc-reference {
  padding-top: clamp(54px, 7vw, 90px);
}

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

.doc-chapter {
  padding-top: 28px;
  padding-bottom: clamp(72px, 9vw, 118px);
}

.doc-chapter + .doc-chapter {
  border-top: 1px solid var(--color-line);
}

.chapter-index {
  margin-bottom: 14px;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.doc-prose h2 {
  margin-top: 0;
  margin-bottom: 30px;
}

.doc-prose h3 {
  margin-top: 46px;
  margin-bottom: 16px;
  font-size: clamp(21px, 2.4vw, 26px);
}

.doc-prose p,
.doc-prose li {
  font-size: 17px;
  line-height: 1.85;
}

.doc-prose pre {
  margin-top: 26px;
  margin-bottom: 30px;
  box-shadow: var(--shadow-soft);
}

.doc-prose .table-wrap {
  margin-top: 28px;
  margin-bottom: 34px;
  box-shadow: var(--shadow-card);
}

.doc-prose .callout {
  margin-top: 34px;
  margin-bottom: 34px;
}

.doc-prose a {
  font-weight: 650;
}

@media (max-width: 768px) {
  .doc-hero {
    padding-top: 58px;
    padding-bottom: 64px;
  }

  .doc-hero__note {
    margin-top: 26px;
    padding: 21px;
  }

  .doc-reference {
    padding-top: 40px;
  }

  .doc-chapter {
    padding-top: 20px;
    padding-bottom: 76px;
  }

  .doc-prose h3 {
    margin-top: 38px;
  }

  .doc-prose p,
  .doc-prose li {
    font-size: 16px;
    line-height: 1.82;
  }
}

@media (max-width: 640px) {
  .doc-hero__note {
    border-radius: var(--radius-md);
  }

  .doc-prose pre {
    margin-inline: 0;
  }

  .doc-prose .callout {
    padding-right: 20px;
  }
}