@media (max-width: 768px) {
  .button-row:has(> .btn) {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    inline-size: 100%;
  }

  .button-row > .btn {
    inline-size: 100%;
    min-block-size: var(--control-h-touch);
    justify-content: center;
  }

  .button-row > .btn:last-child:nth-child(odd) {
    grid-column: 1 / -1;
  }
}