/*
 * Optional grid style for fixed-page Group blocks.
 * Existing pages are unaffected until the style is selected in the editor.
 */
.wp-block-group.is-layout-grid,
.wp-block-group.is-style-risho-grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 20rem), 1fr));
  gap: 1.5rem;
  align-items: stretch;
}

.wp-block-group.is-layout-grid > *,
.wp-block-group.is-style-risho-grid-3 > * {
  min-width: 0;
}