/*
 * Layout primitives. .wrapper centres the page, .stack spaces blocks
 * vertically, .cluster wraps a row of items and .grid lays out columns that
 * collapse to one on a narrow screen.
 */
@layer layout {
  .wrapper {
    max-width: var(--content-width);
    margin-inline: auto;
  }

  main.wrapper {
    padding: var(--space-4) var(--gutter);
  }

  .stack > * + * {
    margin-block-start: var(--stack-space, var(--space-4));
  }

  .stack--tight {
    --stack-space: var(--space-2);
  }

  .cluster {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--cluster-space, var(--space-3));
  }

  .cluster--between {
    justify-content: space-between;
  }

  .grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(var(--grid-min, 12rem), 100%), 1fr));
    gap: var(--space-4) var(--space-5);
  }

  .grid--halves {
    --grid-min: 24rem;
  }
}