*, *::before, *::after { box-sizing: border-box; }
.pagina { max-width: 65rem; margin-inline: auto; padding: 1rem; }
.catalogo { display: grid; grid-template-columns: minmax(0, 1fr); gap: 1rem; }
article { padding: 1rem; border: 1px solid navy; overflow-wrap: anywhere; }
a:focus-visible { outline: 3px solid navy; outline-offset: 3px; }
@media (min-width: 48rem) { .catalogo { grid-template-columns: repeat(3, minmax(0, 1fr)); } }