/* ─── Scroll Reveal ─── */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 600ms ease, transform 600ms ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 {
  transition-delay: 100ms;
}

.reveal-delay-2 {
  transition-delay: 200ms;
}

.reveal-delay-3 {
  transition-delay: 300ms;
}

/* ─── Navbar Link Underline ─── */
.navbar-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--brand);
  border-radius: 1px;
  transition: width 250ms ease;
}

.navbar-link:hover::after,
.navbar-link.active::after {
  width: 100%;
}

/* ─── Keyframes ─── */
@keyframes fade-in-up {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-fade-in-up {
  animation: fade-in-up 600ms ease forwards;
}

.animate-fade-in-up-delay-1 {
  animation: fade-in-up 600ms ease 100ms forwards;
  opacity: 0;
}

.animate-fade-in-up-delay-2 {
  animation: fade-in-up 600ms ease 200ms forwards;
  opacity: 0;
}

.animate-fade-in-up-delay-3 {
  animation: fade-in-up 600ms ease 300ms forwards;
  opacity: 0;
}