.montage__images {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  grid-gap: var(--curvy-inset);
  grid-template-areas:
    'alpha gamma'
    'beta gamma';

  @media (max-width: 768px) {
    grid-template-columns: 1fr;
    grid-template-areas:
      'alpha'
      'beta'
      'gamma';
  }
}

.montage--edgy .montage__images,
.montage--strokey .montage__images {
  grid-gap: 4px;
}

.montage--vertical .montage__images {
  grid-template-areas: 
    'alpha alpha'
    'beta gamma';

  @media (max-width: 768px) {
    grid-template-columns: 1fr;
    grid-template-areas:
      'alpha'
      'beta'
      'gamma';
  }
}

.montage__image:nth-child(1) {
  grid-area: alpha;
}

.montage__image:nth-child(2) {
  grid-area: beta;
}

.montage__image:nth-child(3) {
  grid-area: gamma;
}

.montage__image img {
  vertical-align: bottom;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--curvynes);
  transition: border-radius 0.25s;
}