/* Light, readable, and out of the way. The figures carry the colour. */

:root {
  --pf-ink: #1a202c;
  --pf-muted: #4a5568;
  --pf-rule: #e2e8f0;
}

body {
  color: var(--pf-ink);
}

/* Tables are data, so let them breathe and stay scannable. */
table {
  font-size: 0.92rem;
}

table thead th {
  border-bottom: 2px solid var(--pf-rule);
  font-weight: 600;
}

/* A subtitle should read as a subtitle, not as a second heading. */
.subtitle {
  color: var(--pf-muted);
  font-weight: 400;
}

/* Equations get room; several pages lean on them. */
.math.display {
  margin: 1.4rem 0;
}

/* The folded-code affordance is secondary to the prose around it. */
details > summary {
  color: var(--pf-muted);
  font-size: 0.88rem;
}