.doc-hero {
  position: relative;
  overflow: clip;
  padding-top: clamp(58px, 9vw, 104px);
  padding-bottom: clamp(46px, 7vw, 84px);
  background:
    radial-gradient(circle at 12% 10%, var(--color-aurora-pink), var(--color-pink-clear) 42%),
    radial-gradient(circle at 82% 18%, var(--color-aurora-blue), var(--color-blue-clear) 46%),
    radial-gradient(circle at 62% 92%, var(--color-aurora-teal), var(--color-teal-clear) 44%),
    linear-gradient(to bottom, var(--color-panel), var(--color-bg));
}

.doc-hero::after {
  position: absolute;
  right: -8%;
  bottom: 12%;
  width: min(42vw, 520px);
  height: min(42vw, 520px);
  border: 1px solid var(--color-edge-blue);
  border-radius: 50%;
  opacity: .55;
  content: "";
  pointer-events: none;
}

.doc-hero-panel {
  position: relative;
  z-index: 1;
  max-width: 830px;
  margin-inline: auto;
  text-align: center;
}

.doc-hero h1 {
  max-width: 780px;
  margin-inline: auto;
  font-size: clamp(34px, 4.2vw, 48px);
}

.doc-intro {
  max-width: 750px;
  margin-right: auto;
  margin-bottom: 26px;
  margin-left: auto;
  color: var(--color-muted);
  font-size: clamp(17px, 2vw, 21px);
}

.doc-hero .button-row,
.doc-hero .chip-row {
  justify-content: center;
}

.doc-chips {
  margin-top: 24px;
}

.doc-opening {
  padding-bottom: 30px;
}

.doc-opening .panel h2 {
  font-size: clamp(24px, 2.4vw, 32px);
}

.doc-opening .panel p:last-child {
  margin-bottom: 0;
}

.doc-nav-section {
  padding-top: 18px;
  padding-bottom: 22px;
}

.toc-title {
  margin-bottom: 14px;
  font-size: 18px;
}

.doc-jump-nav {
  top: calc(var(--header-height) + 10px);
}

.doc-article {
  counter-reset: chapter;
}

.doc-chapter {
  scroll-margin-top: calc(var(--header-height) + 90px);
}

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

.chapter-head {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  margin-bottom: 38px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--color-border);
}

.chapter-index {
  display: inline-flex;
  min-width: 54px;
  min-height: 54px;
  flex-shrink: 0;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-edge-orange);
  border-radius: var(--radius-medium);
  background: var(--color-tint-orange);
  color: var(--color-accent-dark);
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 800;
}

.chapter-head .kicker {
  margin-bottom: 8px;
}

.chapter-head h2 {
  margin-bottom: 0;
}

.prose h3 {
  margin-top: 42px;
}

.prose h3:first-of-type {
  margin-top: 0;
}

.prose p {
  color: var(--color-muted);
}

.prose p strong,
.prose li strong {
  color: var(--color-text);
}

.prose .callout {
  margin-top: 32px;
  margin-bottom: 12px;
}

.prose .callout p {
  color: var(--color-muted);
}

.prose pre,
.prose .data-table-wrap {
  margin-top: 24px;
  margin-bottom: 28px;
}

.prose .data-table {
  min-width: 680px;
}

.flow-line {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 9px;
  margin-top: 24px;
  margin-bottom: 26px;
  border: 1px solid var(--color-edge-blue);
  border-radius: var(--radius-large);
  background: var(--color-tint-blue);
  padding: 18px;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 13px;
}

.flow-line span:nth-child(odd) {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-panel);
  color: var(--color-text);
  padding: 6px 11px;
}

@media (max-width: 640px) {
  .doc-hero {
    padding-top: 48px;
    padding-bottom: 42px;
  }

  .doc-hero h1 {
    font-size: clamp(26px, 8vw, 30px);
  }

  .doc-hero::after {
    right: -28%;
    width: 300px;
    height: 300px;
  }

  .doc-opening {
    padding-top: 48px;
  }

  .doc-jump-nav {
    top: calc(var(--header-height) + 6px);
  }

  .chapter-head {
    gap: 12px;
  }

  .chapter-index {
    min-width: 44px;
    min-height: 44px;
  }

  .flow-line {
    align-items: flex-start;
    flex-direction: column;
  }

  .flow-line span:nth-child(even) {
    transform: rotate(90deg);
  }
}