.doc-hero {
  position: relative;
  overflow-x: clip;
  padding-top: 88px;
  padding-bottom: 72px;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-canvas);
}

.doc-hero::before {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(var(--color-accent-faint) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-accent-faint) 1px, transparent 1px);
  background-size: 46px 46px;
  content: "";
  opacity: .55;
  -webkit-mask-image: radial-gradient(80% 80% at 50% 20%, var(--color-ink), transparent);
  mask-image: radial-gradient(80% 80% at 50% 20%, var(--color-ink), transparent);
}

.doc-hero .reading-wrap {
  position: relative;
}

.doc-hero h1 {
  max-width: var(--reading-width);
  font-size: clamp(2.25rem, 5vw, 3rem);
}

.doc-hero .lead {
  max-width: var(--reading-width);
}

.doc-hero-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.doc-scope {
  margin-bottom: 0;
}

.doc-scope a {
  color: var(--color-accent-dark);
  text-decoration: underline;
  text-decoration-color: var(--color-accent-wire);
  text-underline-offset: 3px;
}

.doc-index {
  padding-top: 68px;
  padding-bottom: 68px;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-panel);
}

.doc-index h2 {
  margin-bottom: 24px;
}

.doc-index .toc {
  margin-bottom: 26px;
}

.reading-map {
  display: flex;
  max-width: 100%;
  align-items: center;
  gap: 0;
  overflow-x: auto;
  padding: 15px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-canvas);
  scrollbar-width: thin;
}

.reading-map span {
  position: relative;
  display: inline-flex;
  min-height: 34px;
  flex: none;
  align-items: center;
  color: var(--color-ink-muted);
  font-family: var(--font-mono);
  font-size: .72rem;
  white-space: nowrap;
}

.reading-map span:not(:last-child) {
  padding-right: 31px;
}

.reading-map span:not(:last-child)::after {
  position: absolute;
  right: 10px;
  width: 11px;
  height: 1px;
  background: var(--color-accent);
  content: "";
}

.doc-body {
  background: var(--color-canvas);
}

.doc-chapter {
  scroll-margin-top: calc(var(--header-height) + 18px);
  padding-top: 92px;
  padding-bottom: 92px;
  border-bottom: 1px solid var(--color-border);
}

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

.doc-chapter .prose > h2 {
  margin-top: 0;
  margin-bottom: 34px;
}

.doc-chapter .prose > h3 {
  position: relative;
  padding-left: 19px;
}

.doc-chapter .prose > h3::before {
  position: absolute;
  top: .55em;
  left: 0;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-accent);
  content: "";
}

.chapter-number {
  margin-bottom: 12px;
  color: var(--color-accent-dark);
  font-family: var(--font-mono);
  font-size: .74rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.doc-chapter p {
  text-align: justify;
  text-justify: inter-ideograph;
}

.doc-chapter .data-table-wrap {
  margin-top: 30px;
  margin-bottom: 34px;
  background: var(--color-canvas);
}

.doc-chapter th {
  color: var(--color-ink);
  font-size: .86rem;
}

.doc-chapter td {
  color: var(--color-ink-muted);
  font-size: .86rem;
}

.doc-chapter pre {
  margin-top: 30px;
  margin-bottom: 34px;
  box-shadow: var(--shadow-panel);
}

.doc-chapter .callout {
  text-align: left;
}

.doc-chapter .end-download-card {
  text-align: left;
}

.doc-chapter .end-download-card h2 {
  margin-top: 0;
  font-size: clamp(1.4rem, 3vw, 1.8rem);
}

@media (max-width: 768px) {
  .doc-hero {
    padding-top: 62px;
    padding-bottom: 56px;
  }

  .doc-index {
    padding-top: 54px;
    padding-bottom: 54px;
  }

  .doc-chapter {
    padding-top: 72px;
    padding-bottom: 72px;
  }

  .doc-hero-links {
    align-items: stretch;
  }

  .doc-chapter p {
    text-align: left;
  }
}

@media (max-width: 640px) {
  .doc-hero {
    padding-top: 48px;
    padding-bottom: 46px;
  }

  .doc-hero h1 {
    font-size: clamp(1.65rem, 7vw, 1.875rem);
  }

  .doc-hero-links {
    flex-direction: column;
  }

  .doc-hero-links a {
    width: 100%;
  }

  .doc-index {
    padding-top: 46px;
    padding-bottom: 46px;
  }

  .doc-index .toc {
    flex-direction: column;
  }

  .doc-index .toc a {
    width: 100%;
  }

  .doc-chapter {
    padding-top: 62px;
    padding-bottom: 62px;
  }

  .doc-chapter .prose > h2 {
    margin-bottom: 28px;
  }

  .reading-map {
    padding: 12px;
  }
}