.scroll-fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.scroll-fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.scroll-fade-in.delay-1 {
  transition-delay: 0.1s;
}

.scroll-fade-in.delay-2 {
  transition-delay: 0.2s;
}

.scroll-fade-in.delay-3 {
  transition-delay: 0.3s;
}

.scroll-fade-in.delay-4 {
  transition-delay: 0.4s;
}

h1.scroll-fade-in,
h2.scroll-fade-in,
h3.scroll-fade-in,
p.scroll-fade-in,
div.scroll-fade-in,
span.scroll-fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

h1.scroll-fade-in.visible,
h2.scroll-fade-in.visible,
h3.scroll-fade-in.visible,
p.scroll-fade-in.visible,
div.scroll-fade-in.visible,
span.scroll-fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}