.lexicon-opening {
  padding-top: 16px;
  padding-bottom: 32px;
}
.lexicon-board {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);
  align-items: center;
  gap: 48px;
  padding: 48px;
  border-radius: var(--r-hero);
  background: var(--bg-panel-2);
  color: var(--on-dark);
}
.lexicon-board > * {
  min-width: 0;
}
.lexicon-heading h1 {
  margin-top: 24px;
  margin-bottom: 20px;
}
.lexicon-heading h1 span {
  color: var(--accent);
}
.lexicon-summary {
  max-width: 36em;
  margin-bottom: 0;
  color: var(--on-dark-soft);
  line-height: 1.85;
}
.lexicon-board :focus-visible {
  outline-color: var(--accent);
}
.lexicon-reference {
  padding: 28px;
  border: 1px solid var(--cell-line);
  border-radius: var(--r-card);
  background: var(--cell);
  color: var(--on-dark);
  box-shadow: var(--shadow-cell);
}
.lexicon-kicker {
  margin-bottom: 20px;
  color: var(--accent);
  font-size: 13px;
  font-weight: var(--weight-semibold);
}
.lexicon-reference dl {
  display: grid;
  gap: 20px;
  margin: 0;
}
.lexicon-reference dt {
  overflow-wrap: anywhere;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: var(--weight-medium);
}
.lexicon-reference dd {
  margin-top: 4px;
  margin-left: 0;
  color: var(--on-dark-muted);
  font-size: 14px;
}
.lexicon-reference > p:last-child {
  margin-top: 28px;
  margin-bottom: 0;
  color: var(--on-dark-soft);
  font-size: 13px;
  line-height: 1.85;
}
.lexicon-directory {
  padding-top: 12px;
}
.lexicon-directory .callout {
  margin-bottom: 0;
}
.lexicon-category:nth-of-type(even) {
  background: var(--bg-panel);
  color: var(--text);
}
.lexicon-section-head {
  max-width: 760px;
  margin-bottom: 32px;
}
.lexicon-section-head h2 {
  margin-top: 12px;
  margin-bottom: 16px;
}
.lexicon-section-head > p:last-child {
  margin-bottom: 0;
  color: var(--text-muted);
  line-height: 1.85;
}
.lexicon-category .term-card {
  scroll-margin-top: 24px;
}
.lexicon-rule-example {
  margin-bottom: 24px;
}
.lexicon-rule-example h3 {
  margin-top: 0;
  font-size: 22px;
}
.lexicon-rule-example p:last-child {
  margin-bottom: 0;
  font-size: 14px;
  line-height: 1.85;
}
.lexicon-platform-note {
  margin-top: 28px;
  margin-bottom: 0;
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.9;
}
@media (max-width: 900px) {
  .lexicon-board {
    grid-template-columns: minmax(0, 1fr);
    gap: 32px;
    padding: 32px;
  }
  .lexicon-reference dl {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }
}
@media (max-width: 640px) {
  .lexicon-opening {
    padding-top: 8px;
    padding-bottom: 24px;
  }
  .lexicon-board {
    padding: 28px 20px;
    border-radius: var(--r-hero-sm);
  }
  .lexicon-reference {
    padding: 22px;
  }
  .lexicon-reference dl {
    grid-template-columns: minmax(0, 1fr);
    gap: 18px;
  }
  .lexicon-heading h1 {
    margin-top: 20px;
  }
  .lexicon-summary {
    font-size: 15px;
  }
  .lexicon-section-head {
    margin-bottom: 24px;
  }
}