.stone-catalog-grid{display:grid;gap:20px;margin:20px 0}.stone-catalog-grid.columns-2{grid-template-columns:repeat(2,1fr)}.stone-catalog-grid.columns-3{grid-template-columns:repeat(3,1fr)}.stone-catalog-grid.columns-4{grid-template-columns:repeat(4,1fr)}.stone-catalog-item{border:1px solid #ddd;padding:15px;border-radius:4px;text-align:center}.stone-catalog-item img{max-width:100%;height:auto;margin-bottom:10px}.stone-contact-form input,.stone-contact-form textarea,.stone-contact-form button{width:100%;padding:10px;margin-bottom:10px}@media (max-width:768px){.stone-catalog-grid{grid-template-columns:1fr}}