.manual-page {
  padding-top: 28px;
  padding-bottom: 40px;
}

.manual-intro {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr);
  gap: 56px;
  padding: 44px;
  background: var(--ink);
  box-shadow: var(--shadow-stage);
}

.manual-heading,
.manual-start {
  min-width: 0;
}

.manual-kicker {
  margin-top: 36px;
  margin-bottom: 16px;
  color: var(--on-dark-3);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-ui);
}

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

.manual-dim {
  color: var(--on-dark-heading);
}

.manual-heading > p:last-child {
  max-width: 560px;
  margin-bottom: 0;
  font-size: var(--text-lead);
}

.manual-start {
  align-self: end;
  padding: 28px;
  border: 1px solid var(--on-dark-line-2);
  border-radius: var(--r-card);
  background: var(--on-dark-fill-2);
  color: var(--on-dark);
}

.manual-start a:not(.btn) {
  color: var(--on-dark);
  text-decoration: underline;
  text-decoration-color: var(--accent-ring);
  text-underline-offset: 5px;
}

.manual-start .btn {
  margin-top: 8px;
}

.manual-route {
  padding-top: 34px;
  padding-bottom: 12px;
}

.manual-route > p {
  max-width: 850px;
  margin-bottom: 12px;
  font-size: var(--text-nav);
}

.manual-route .toc {
  margin-top: 12px;
  margin-bottom: 20px;
}

.manual-body {
  display: grid;
  gap: 32px;
}

.manual-chapter {
  padding: 44px 64px;
  scroll-margin-top: 24px;
}

.manual-chapter-head {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  align-items: start;
  gap: 20px;
  margin-bottom: 26px;
}

.manual-number {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  border: 1px solid var(--border);
  border-radius: var(--r-btn);
  background: var(--accent-soft);
  color: var(--accent);
  font-size: var(--text-nav);
}

.manual-chapter-head h2 {
  margin: 0;
  font-size: clamp(24px, 2.6vw, 32px);
  line-height: 1.4;
}

.manual-chapter > p,
.manual-chapter > h3,
.manual-chapter > .callout,
.manual-chapter > pre,
.manual-chapter > .table-scroll {
  max-width: 850px;
  margin-left: auto;
  margin-right: auto;
}

.manual-chapter > p {
  margin-bottom: 20px;
  line-height: 1.95;
}

.manual-chapter .manual-conclusion {
  margin-bottom: 30px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
  color: var(--muted);
  font-size: var(--text-large);
  line-height: 1.8;
}

.manual-chapter > h3 {
  margin-top: 36px;
  margin-bottom: 16px;
}

.manual-chapter .table-scroll {
  margin-top: 26px;
  margin-bottom: 28px;
  border: 1px solid var(--border);
  border-radius: var(--r-btn);
}

.manual-chapter pre {
  margin-top: 24px;
  margin-bottom: 28px;
  font-size: var(--text-sm);
}

.manual-chapter > :last-child {
  margin-bottom: 0;
}

.manual-next {
  padding-top: 40px;
  padding-bottom: 12px;
}

.manual-next > p {
  margin-bottom: 0;
}

.manual-next .get-actions {
  margin-top: 16px;
}

@media (max-width: 900px) {
  .manual-intro {
    grid-template-columns: minmax(0, 1fr);
    gap: 30px;
    padding: 32px;
  }

  .manual-kicker {
    margin-top: 28px;
  }

  .manual-chapter {
    padding: 36px;
  }
}

@media (max-width: 640px) {
  .manual-page {
    padding-top: 12px;
    padding-bottom: 24px;
  }

  .manual-intro {
    padding: 24px;
    gap: 24px;
  }

  .manual-start {
    padding: 20px;
  }

  .manual-kicker {
    margin-top: 24px;
    font-size: var(--text-xs);
  }

  .manual-route {
    padding-top: 26px;
  }

  .manual-body {
    gap: 24px;
  }

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

  .manual-chapter-head {
    grid-template-columns: minmax(0, 1fr);
    gap: 14px;
    margin-bottom: 20px;
  }

  .manual-number {
    justify-self: start;
    min-width: 42px;
    min-height: 34px;
  }

  .manual-chapter-head h2 {
    font-size: var(--text-h3);
    line-height: 1.5;
  }

  .manual-chapter > p {
    line-height: 1.9;
  }

  .manual-chapter .manual-conclusion {
    font-size: var(--text-base);
    padding-bottom: 20px;
    margin-bottom: 24px;
  }

  .manual-chapter > h3 {
    margin-top: 28px;
    font-size: var(--text-large);
    line-height: 1.5;
  }

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

  .manual-next .get-actions {
    align-items: flex-start;
  }
}

@media print {
  .manual-intro,
  .manual-start {
    background: var(--panel);
    color: var(--text);
    box-shadow: none;
    border-color: var(--border);
  }

  .manual-intro p,
  .manual-dim,
  .manual-kicker,
  .manual-start a:not(.btn) {
    color: var(--text);
  }

  .manual-chapter {
    break-inside: auto;
  }

  .manual-chapter h2,
  .manual-chapter h3 {
    break-after: avoid;
  }
}