.event-gallery {
    column-count: 1;
    column-gap: 12px;
    padding: 12px 0;
}

.event-gallery img {
    width: 100%;
    display: block;
    margin-bottom: 12px;
    border-radius: 8px;
    break-inside: avoid;
}

@media (min-width: 600px) {
    .event-gallery {
        column-count: 2;
        column-gap: 16px;
    }
}

@media (min-width: 900px) {
    .event-gallery {
        column-count: 3;
        column-gap: 20px;
    }
}