.sn-main{display:grid;grid-template-columns:1fr 1fr;gap:30px}
.sn-image img{width:100%;display:block}
.sn-thumbs{display:flex;gap:10px;margin-top:20px}
.sn-thumb{cursor:pointer;padding:10px;border:1px solid #ddd}
.sn-thumb.active{background:#f3f3f3}
@media(max-width:767px){.sn-main{grid-template-columns:1fr}}