.booking form{grid-template-columns:repeat(4,minmax(0,1fr))}
.booking input:disabled{opacity:.58;cursor:not-allowed}
@media(max-width:1100px){.booking form{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:620px){.booking form{grid-template-columns:1fr}}