@media (max-width:800px){
  header nav a:nth-child(2),header nav a:nth-child(3){display:none}
  footer>*{min-width:0}
  footer div:nth-child(2){flex-wrap:wrap;gap:12px}
}
@media (max-width:480px){
  header nav a:nth-child(1),header nav a:nth-child(6){display:none}
  header nav a:nth-child(5),header nav a:last-child{display:block}
}