body{font-family:Georgia,serif;margin:40px;background:#fafafa}
h1{margin-bottom:20px}
.catalogo{display:grid;grid-template-columns:repeat(4,1fr);gap:30px}
.item{background:white;padding:10px;border:1px solid #ddd}
.item img{width:100%}
.precio{color:#a00;font-weight:bold}
.filtros{margin-bottom:20px}
input,select{padding:6px;margin-right:10px}
.cartel{max-width:1000px;margin:auto}
.cartel-contenido{display:grid;grid-template-columns:1fr 1fr;gap:40px}