.photo-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    padding: 2rem 0;
}

.photo-item {
    position: relative;
    overflow: hidden;
    border-radius: 0.5rem;
    background-color: var(--mint-cream);
}

.photo-item::before {
    content: '';
    display: block;
    padding-top: 100%; /* 1:1 Aspect ratio */
}

.photo-item.wide {
    grid-column: span 2;
}

.photo-item.tall {
    grid-row: span 2;
}

.photo-item img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.photo-item:hover img {
    transform: scale(1.05);
}

/* Hover overlay */
.photo-item::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.2);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.photo-item:hover::after {
    opacity: 1;
}

/* Responsive adjustments */
@media (max-width: 992px) {
    .photo-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 1rem;
    }
}

@media (max-width: 768px) {
    .photo-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .photo-item.wide {
        grid-column: auto;
    }
    
    .photo-item.tall {
        grid-row: auto;
    }
}

@media (max-width: 576px) {
    .photo-grid {
        grid-template-columns: 1fr;
    }
}