.manual-hero {
  padding-top: clamp(70px, 9vw, 118px);
  padding-bottom: clamp(58px, 8vw, 98px);
}

.manual-hero .article-wrap {
  position: relative;
}

.manual-hero h1 {
  max-width: 760px;
  margin-bottom: 22px;
}

.manual-lead {
  max-width: 760px;
  margin-bottom: 26px;
  color: var(--color-muted);
  font-size: clamp(17px, 2vw, 20px);
  line-height: 1.85;
}

.manual-meta {
  display: flex;
  max-width: 100%;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 34px;
}

.manual-meta span {
  display: inline-flex;
  max-width: 100%;
  min-height: 32px;
  align-items: center;
  padding: 5px 11px;
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
  background: var(--color-canvas);
  color: var(--color-accent-deep);
  font: 600 12px/1.4 var(--font-mono);
  white-space: nowrap;
}

.manual-hero .callout {
  max-width: 780px;
  margin-bottom: 0;
  background: var(--color-canvas);
}

.manual-directory {
  padding-top: clamp(52px, 7vw, 82px);
  padding-bottom: clamp(48px, 6vw, 72px);
  border-bottom: 1px solid var(--color-line);
}

.directory-title {
  margin-bottom: 26px;
  font-size: clamp(25px, 3.5vw, 34px);
}

.manual-directory .toc-tabs {
  margin-bottom: 22px;
}

.reading-note {
  padding: 19px 21px;
  border-left: 3px solid var(--color-accent);
  background: var(--color-panel-soft);
  color: var(--color-muted);
}

.reading-note strong {
  display: block;
  margin-bottom: 5px;
}

.reading-note p {
  margin-bottom: 0;
}

.manual-prose {
  padding-top: 30px;
  padding-bottom: var(--section-space);
}

.manual-chapter {
  padding-top: clamp(74px, 9vw, 112px);
  scroll-margin-top: 88px;
}

.manual-chapter + .manual-chapter {
  margin-top: clamp(54px, 8vw, 92px);
  border-top: 1px solid var(--color-line);
}

.manual-chapter h2 {
  margin-top: 0;
  margin-bottom: 32px;
}

.manual-chapter h3 {
  margin-top: 2em;
  margin-bottom: 14px;
}

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

.manual-chapter pre,
.manual-chapter .table-scroll {
  margin-top: 28px;
  margin-bottom: 32px;
}

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

.manual-chapter ul {
  padding: 22px 24px 22px 44px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-card);
  background: var(--color-panel-soft);
}

.manual-chapter li + li {
  margin-top: 10px;
}

@media (max-width: 640px) {
  .manual-hero {
    padding-top: 48px;
    padding-bottom: 54px;
  }

  .manual-lead {
    font-size: 16px;
  }

  .manual-directory {
    padding-top: 44px;
    padding-bottom: 46px;
  }

  .manual-directory .toc-tabs {
    gap: 5px;
    padding: 7px;
  }

  .manual-directory .toc-tabs a {
    min-height: 38px;
    padding: 6px 10px;
    font-size: 13px;
  }

  .manual-prose {
    padding-top: 10px;
  }

  .manual-chapter {
    padding-top: 64px;
  }

  .manual-chapter + .manual-chapter {
    margin-top: 48px;
  }

  .manual-chapter pre {
    padding: 16px;
    font-size: 12.5px;
  }

  .manual-chapter ul {
    padding: 18px 18px 18px 38px;
  }
}