body {
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0;
    font-family: Arial, sans-serif;
    background-color: #b0bec5;
    padding: 3px;
}

.collage {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    grid-auto-rows: 33vh;
    gap: 3px;
    width: 100%;
}

.collage-item {
    overflow: hidden;
    border-radius: 8px;
}

.collage-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.collage-item.large {
    grid-column: span 3;
    grid-row: span 2;
}

.collage-item.medium {
    grid-column: span 2;
    grid-row: span 2;
}

.collage-item.small {
    grid-column: span 1;
    grid-row: span 1;
}

.collage-item:hover img {
    transform: scale(1.5);
}

@media (max-width: 992px) {
    .collage {
        grid-template-columns: repeat(2, 1fr);
    }
    .collage-item.large {
        grid-column: span 2;
        grid-row: span 2;
    }
    .collage-item.medium {
        grid-column: span 2;
        grid-row: span 1;
    }
    .collage-item.small {
        grid-column: span 1;
        grid-row: span 1;
    }
}

@media (max-width: 768px) {
    .collage {
        grid-template-columns: repeat(2, 1fr);
        grid-auto-rows: 33vh;
    }
    .collage-item.large,
    .collage-item.medium,
    .collage-item.small {
        grid-column: span 1;
        grid-row: span 1;
    }
}

@media (max-width: 480px) {
    .collage {
        grid-template-columns: 1fr;
        grid-auto-rows: auto;
    }
    .collage-item.large,
    .collage-item.medium,
    .collage-item.small {
        grid-column: span 1;
        grid-row: span 1;
    }
}