.site-container {
  width: min(100% - (2 * var(--content-gutter)), var(--content-width));
  margin-inline: auto;
}

.site-main {
  padding-block: var(--space-5) var(--space-8);
}

.page-section {
  scroll-margin-top: var(--space-5);
}

.stack {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.stack--large {
  gap: var(--space-8);
}

.cluster {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  align-items: center;
}

.card-grid {
  display: grid;
  gap: var(--space-4);
}

.section-heading {
  display: grid;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.section-heading h2 {
  margin-bottom: 0;
}

.section-heading p {
  max-width: 42rem;
  margin-bottom: 0;
}

/*
 * Breakpoints are written as literal values because CSS custom properties
 * cannot be used reliably in media-query conditions. SCREAM uses a
 * mobile-first strategy with 48rem and 64rem as its standard breakpoints.
 */
@media (min-width: 48rem) {
  .site-main {
    padding-top: var(--space-6);
  }

  .card-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .section-heading {
    grid-template-columns: minmax(0, 1fr) minmax(18rem, 0.75fr);
    align-items: end;
  }
}