.aig-gallery{
display:grid;
gap:15px;
}

.aig-gallery.columns-2{grid-template-columns:repeat(2,1fr);}
.aig-gallery.columns-3{grid-template-columns:repeat(3,1fr);}
.aig-gallery.columns-4{grid-template-columns:repeat(4,1fr);}
.aig-gallery.columns-5{grid-template-columns:repeat(5,1fr);}

.aig-item img{
width:100%;
height:auto;
border-radius:6px;
cursor:pointer;
transition:transform .2s;
}

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

.aig-lightbox-overlay{
position:fixed;
top:0;
left:0;
width:100%;
height:100%;
background:rgba(0,0,0,0.9);
display:flex;
align-items:center;
justify-content:center;
z-index:9999;
}

.aig-lightbox-overlay img{
max-width:90%;
max-height:90%;
}