.diagnostic-intro {
  background: linear-gradient(180deg,var(--sky-top),var(--sky-bottom));
  color: var(--text);
}
.diagnostic-intro::before,
.diagnostic-intro::after {
  content: "";
  position: absolute;
  z-index: -1;
  pointer-events: none;
  background: radial-gradient(closest-side,var(--fog),var(--fog-0));
}
.diagnostic-intro::before {
  width: 660px;
  height: 340px;
  left: -180px;
  bottom: -160px;
}
.diagnostic-intro::after {
  width: 520px;
  height: 300px;
  right: -100px;
  top: -120px;
}
.diagnostic-intro__content {
  max-width: calc(800px + var(--gutter) * 2);
}
.diagnostic-intro__content > * + * {
  margin-top: 22px;
}
.diagnostic-intro__lede {
  font-size: clamp(18px,2vw,22px);
  line-height: 1.65;
}
.diagnostic-principle {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 20px;
  border: 1px solid var(--glass-edge);
  border-radius: var(--r-btn);
  background: var(--glass);
  color: var(--text);
}
.diagnostic-principle .icon {
  margin-top: 4px;
}
.diagnostic-principle p {
  min-width: 0;
  font-size: 14px;
}
.diagnostic-manual {
  padding-top: 28px;
  padding-bottom: 40px;
}
.diagnostic-chapter {
  margin-inline: auto;
}
.diagnostic-chapter + .diagnostic-chapter {
  border-top: 1px solid var(--border);
}
.diagnostic-chapter > h2 {
  margin-top: 18px;
}
.diagnostic-chapter .table-scroll,
.diagnostic-chapter pre {
  margin-top: 24px;
  margin-bottom: 24px;
}
.diagnostic-chapter .callout {
  margin-top: 28px;
  margin-bottom: 28px;
}
.diagnostic-chapter:nth-of-type(4n + 1) .callout:not(.callout--warn) {
  background: var(--card-mint);
}
.diagnostic-chapter:nth-of-type(4n + 2) .callout:not(.callout--warn) {
  background: var(--card-lilac);
}
@media (max-width: 640px) {
  .diagnostic-manual {
    padding-top: 18px;
    padding-bottom: 20px;
  }
  .diagnostic-intro__content > * + * {
    margin-top: 18px;
  }
  .diagnostic-principle {
    padding: 16px;
  }
}