.doc-hero {
  position: relative;
  border-bottom: 1px solid var(--color-border);
  background:
    linear-gradient(90deg, var(--color-text-faint) 1px, var(--color-transparent) 1px),
    linear-gradient(180deg, var(--color-accent-soft), var(--color-transparent));
  background-size: 36px 100%, 100% 100%;
  box-shadow: inset 0 -24px 42px var(--color-shadow);
}

.doc-hero::after {
  position: absolute;
  right: max(var(--gutter), calc((100vw - var(--page-width)) / 2));
  bottom: 0;
  width: min(36vw, 440px);
  height: 9px;
  content: "";
  background: repeating-linear-gradient(
    90deg,
    var(--color-error) 0,
    var(--color-error) 2px,
    var(--color-transparent) 2px,
    var(--color-transparent) 15px
  );
}

.doc-hero h1 {
  max-width: 920px;
  margin-bottom: 18px;
}

.doc-hero .lead {
  max-width: 860px;
}

.doc-hero .chip-row {
  margin-top: 24px;
}

.doc-intro-callout {
  max-width: 900px;
  margin-top: 32px;
  margin-bottom: 0;
}

.doc-intro-callout a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

.doc-index {
  padding-bottom: calc(var(--section-space) * 0.32);
}

.doc-index-panel {
  padding-bottom: 26px;
}

.doc-index-title {
  margin-bottom: 24px;
  font-size: clamp(27px, 3vw, 38px);
}

.doc-index .toc-tabs {
  top: 8px;
}

.doc-route {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 26px;
  border-top: 1px solid var(--color-border);
  background: repeating-linear-gradient(
    90deg,
    var(--color-border) 0,
    var(--color-border) 1px,
    var(--color-transparent) 1px,
    var(--color-transparent) 18px
  );
  background-size: 100% 8px;
  background-repeat: no-repeat;
}

.doc-route span {
  min-width: 0;
  padding-top: 17px;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  overflow-wrap: anywhere;
}

.doc-route span::before {
  width: 7px;
  height: 7px;
  display: inline-block;
  margin-right: 7px;
  content: "";
  background: var(--color-accent);
}

.doc-route span:last-child::before {
  background: var(--color-error);
}

.doc-prose {
  padding-top: calc(var(--section-space) * 0.34);
  padding-bottom: var(--section-space);
}

.doc-chapter {
  position: relative;
  padding-top: 48px;
  padding-bottom: 58px;
  border-top: 1px solid var(--color-border);
  scroll-margin-top: 24px;
}

.doc-chapter:first-child {
  border-top-width: 5px;
  border-top-color: var(--color-accent-dark);
}

.doc-chapter::before {
  position: absolute;
  top: -5px;
  right: 0;
  width: 84px;
  height: 9px;
  content: "";
  background: repeating-linear-gradient(
    90deg,
    var(--color-error) 0,
    var(--color-error) 3px,
    var(--color-transparent) 3px,
    var(--color-transparent) 12px
  );
}

.doc-chapter h2 {
  margin-top: 0;
}

.doc-chapter h3 {
  padding-left: 14px;
  border-left: 4px solid var(--color-accent-dark);
}

.doc-chapter p {
  margin-bottom: 1.25rem;
}

.doc-chapter pre,
.doc-chapter .table-wrap,
.doc-chapter .callout {
  margin-top: 28px;
  margin-bottom: 32px;
}

.doc-chapter .table-wrap {
  border-bottom: 5px solid var(--color-bg-panel-2);
  box-shadow: 9px 11px 0 var(--color-black-soft);
}

.doc-chapter .data-table {
  margin: 0;
}

@media (max-width: 760px) {
  .doc-route {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    row-gap: 12px;
  }

  .doc-index .toc-tabs {
    top: 0;
  }

  .doc-chapter {
    padding-top: 38px;
    padding-bottom: 48px;
  }
}

@media (max-width: 420px) {
  .doc-route {
    grid-template-columns: minmax(0, 1fr);
  }

  .doc-hero::after {
    right: var(--gutter);
    width: calc(100% - var(--gutter) * 2);
  }
}