.submission-images {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 6px;
    margin-top: 18px;
}

.submission-images img {
    display: block;
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
    filter: saturate(.78) contrast(1.04);
}

.submission-images--large {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    margin-top: 0;
}

.submission-images--large img {
    aspect-ratio: 3 / 4;
}