.hero h1 {
  font-size: clamp(43px, 4.5vw, 64px);
}

.hero-line {
  display: inline-block;
  white-space: nowrap;
}

@media (max-width: 640px) {
  .hero h1 {
    font-size: clamp(32px, 10.4vw, 38px);
  }
}