.reference-head {
  position: relative;
  max-width: 100%;
  overflow-x: clip;
  background: linear-gradient(180deg, var(--wash-violet), var(--wash-apricot) 68%, var(--bg));
}
.reference-head__inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(240px, 340px);
  align-items: center;
  gap: 56px;
  padding-top: 92px;
  padding-bottom: 92px;
}
.reference-head__copy {
  min-width: 0;
}
.reference-head h1 {
  max-width: 13ch;
  margin: 24px 0 18px;
  font-size: clamp(3.25rem, 5vw, 4.5rem);
}
.reference-head__lead {
  max-width: 38em;
  margin: 0;
  font-size: 19px;
  color: var(--text-muted);
}
.reference-head .facts {
  justify-content: flex-start;
}
.reference-head__sheet {
  display: grid;
  gap: 16px;
  min-width: 0;
  padding: 30px;
  border: 1px solid rgb(var(--white-rgb) / .85);
  border-radius: var(--r-ring);
  background: rgb(var(--white-rgb) / .55);
  box-shadow: var(--edge-hi), var(--shadow-glass);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  transform: rotate(2deg);
}
.reference-head__sheet::after {
  content: "";
  height: 28px;
  margin-top: 4px;
  border: 2px dashed rgb(var(--accent-rgb) / .35);
  border-radius: var(--r-xs);
}
.reference-head__sheet-label {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--accent-dark);
}
.reference-head__sheet > span:not(:first-child) {
  padding: 13px 16px;
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  background: var(--bg-panel);
  font-weight: 800;
}
.reference-head__sheet b {
  padding-inline: 6px;
  color: var(--accent);
}
.reference-body {
  padding-top: 52px;
  padding-bottom: 92px;
}
.reference-intro {
  margin-bottom: 34px;
  padding: 24px 28px;
  border-left: 4px solid var(--accent);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
  background: var(--bg-panel);
}
.reference-intro p {
  margin: 0;
}
.reference-intro a,
.reference-article a {
  color: var(--accent-dark);
  font-weight: 750;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}
.reference-body > .toc-tabs {
  margin-bottom: 54px;
}
.reference-article {
  margin-inline: auto;
}
.reference-chapter {
  padding-bottom: 64px;
  margin-bottom: 64px;
  border-bottom: 1px solid var(--border);
}
.reference-chapter:last-child {
  margin-bottom: 0;
}
.reference-chapter .kicker {
  margin-bottom: 12px;
}
.reference-chapter h2 {
  margin: 0 0 30px;
}
.reference-chapter h3 {
  margin: 32px 0 14px;
  font-size: clamp(1.3rem, 2vw, 1.65rem);
}
.reference-chapter p {
  margin-bottom: 20px;
}
.reference-chapter .callout {
  font-weight: 650;
}
.reference-chapter .table-scroll {
  margin: 30px 0;
}
.reference-chapter .table-scroll table {
  min-width: 660px;
}
.reference-next {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-top: 12px;
  padding: 32px;
  border: 1px solid var(--border);
  border-radius: var(--r-box);
  background: var(--bg-panel);
  box-shadow: var(--edge-hi), var(--shadow-chip);
}
.reference-next > div:first-child {
  min-width: 0;
}
.reference-next h2 {
  margin: 8px 0 12px;
  font-size: clamp(1.6rem, 3vw, 2.3rem);
}
.reference-next p:last-child {
  max-width: 48em;
  margin: 0;
  color: var(--text-muted);
}
.reference-next__links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px;
  flex-shrink: 0;
}
@media (max-width: 900px) {
  .reference-head__inner {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .reference-head__sheet {
    max-width: 520px;
    transform: none;
  }
}
@media (max-width: 640px) {
  .reference-head__inner {
    padding-top: 56px;
    padding-bottom: 60px;
  }
  .reference-head h1 {
    font-size: clamp(1.75rem, 7vw, 2.5rem);
  }
  .reference-head__lead {
    font-size: 17px;
  }
  .reference-head__sheet {
    padding: 20px;
  }
  .reference-body {
    padding-top: 36px;
    padding-bottom: 68px;
  }
  .reference-intro {
    padding: 18px;
  }
  .reference-body > .toc-tabs {
    margin-bottom: 40px;
  }
  .reference-chapter {
    padding-bottom: 48px;
    margin-bottom: 48px;
  }
  .reference-next {
    display: block;
    padding: 24px;
  }
  .reference-next__links {
    margin-top: 22px;
  }
}