/* Preserve the two-line heading hierarchy on narrow phones. */
@media (max-width: 480px) {
  .hero h1 { font-size: clamp(37px, 11.8vw, 46px); }
  h2 { font-size: clamp(27px, 8.45vw, 33px); }
  .closing h2 { font-size: clamp(32px, 10vw, 39px); }
}