.nodos-catalogo{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.nodo-item{text-align:center;background:#fff;border-radius:10px;padding:15px;box-shadow:0 2px 6px rgb(0 0 0 / .1);transition:transform 0.2s ease}.nodo-item:hover{transform:scale(1.03)}.nodo-item img{max-width:100%;height:auto;border-radius:8px}.nodo-item h3{margin-top:10px;font-size:1.1rem;color:#333}