@media (min-width: 751px) {
  .hero {
    height: min(720px, calc(100svh - 120px));
    min-height: 620px;
  }
}
@media (max-width: 750px) {
  .hero {
    height: calc(100svh - 120px);
    min-height: 540px;
    max-height: 720px;
  }
}