@media (max-width:720px) {
  nav.nav .burger { width:44px; height:44px; align-items:center; justify-content:center; border:0; background:transparent; cursor:pointer; }
  nav.nav .menu.is-open { display:flex; position:absolute; top:100%; left:0; right:0; flex-direction:column; align-items:stretch; gap:0; max-height:calc(100vh - 74px); overflow-y:auto; padding:8px 20px 16px; background:#1E1B38; box-shadow:0 16px 32px rgba(0,0,0,.24); z-index:60; }
  nav.nav .menu.is-open a { display:flex; align-items:center; min-height:48px; padding:9px 8px; color:#fff; }
}