.guide-hero {
  padding-top: 88px;
  padding-bottom: 58px;
  border-bottom: 1px solid var(--color-border);
  background-color: var(--color-bg);
  background-image: radial-gradient(var(--color-dot) 1px, transparent 1.2px);
  background-position: 8px 8px;
  background-size: 18px 18px;
}

.guide-hero h1 {
  max-width: 780px;
  margin-bottom: 22px;
}

.guide-intro {
  max-width: var(--reading-width);
  margin-bottom: 24px;
  color: var(--color-muted);
  font-size: 18px;
  line-height: 1.8;
}

.guide-intro a {
  color: var(--color-accent-ink);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.guide-facts {
  margin-bottom: 28px;
}

.diagnostic-rule {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 22px;
}

.diagnostic-rule strong {
  display: block;
  margin-bottom: 6px;
  line-height: 1.5;
}

.diagnostic-rule p {
  margin-bottom: 0;
  color: var(--color-muted);
}

.guide-article {
  padding-top: 44px;
  padding-bottom: 104px;
}

.guide-article .toc-tabs a {
  text-decoration: none;
}

.guide-chapter {
  padding-top: 34px;
  padding-bottom: 52px;
  border-bottom: 1px solid var(--color-border);
}

.guide-chapter:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.guide-chapter h2 {
  margin-top: 16px;
}

.guide-chapter h3 {
  margin-top: 1.75em;
  font-size: 24px;
}

.chapter-label {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .05em;
}

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

.guide-chapter pre {
  margin-top: 20px;
  margin-bottom: 24px;
  font-size: 14px;
}

.guide-chapter .table-scroll {
  margin-top: 28px;
  margin-bottom: 30px;
}

.guide-chapter .callout p:last-child {
  margin-bottom: 0;
}

.ticket-template {
  margin-top: 30px;
  margin-bottom: 30px;
  padding: 24px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.ticket-template h3 {
  margin-top: 0;
}

.ticket-template pre {
  margin-bottom: 0;
}

@media (max-width: 768px) {
  .guide-hero {
    padding-top: 58px;
    padding-bottom: 42px;
    background-size: 16px 16px;
  }

  .guide-intro {
    font-size: 16px;
  }

  .guide-article {
    padding-top: 30px;
    padding-bottom: 72px;
  }

  .guide-chapter {
    padding-top: 28px;
    padding-bottom: 42px;
  }

  .guide-chapter h3 {
    font-size: 21px;
  }

  .diagnostic-rule {
    padding: 18px;
  }
}

@media (max-width: 640px) {
  .guide-hero {
    padding-top: 44px;
    padding-bottom: 36px;
  }

  .diagnostic-rule {
    flex-direction: column;
  }

  .guide-article {
    padding-top: 24px;
    padding-bottom: 60px;
  }

  .guide-chapter {
    padding-top: 24px;
    padding-bottom: 36px;
  }

  .ticket-template {
    padding: 18px;
  }
}