.fade-up {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 600ms ease, transform 600ms cubic-bezier(0.2, 0.8, 0.2, 1);
}
.fade-up.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in {
  opacity: 0;
  transition: opacity 700ms ease;
}
.fade-in.is-visible { opacity: 1; }

.stagger > * {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 500ms ease, transform 500ms cubic-bezier(0.2, 0.8, 0.2, 1);
}
.stagger.is-visible > *:nth-child(1) { transition-delay: 0ms; opacity: 1; transform: none; }
.stagger.is-visible > *:nth-child(2) { transition-delay: 80ms; opacity: 1; transform: none; }
.stagger.is-visible > *:nth-child(3) { transition-delay: 160ms; opacity: 1; transform: none; }
.stagger.is-visible > *:nth-child(4) { transition-delay: 240ms; opacity: 1; transform: none; }
.stagger.is-visible > *:nth-child(5) { transition-delay: 320ms; opacity: 1; transform: none; }
.stagger.is-visible > *:nth-child(6) { transition-delay: 400ms; opacity: 1; transform: none; }
.stagger.is-visible > *:nth-child(7) { transition-delay: 480ms; opacity: 1; transform: none; }
.stagger.is-visible > *:nth-child(8) { transition-delay: 560ms; opacity: 1; transform: none; }

@keyframes float-steam {
  0%, 100% { transform: translateY(0); opacity: 0.6; }
  50% { transform: translateY(-8px); opacity: 1; }
}

.hero__visual { animation: float-steam 6s ease-in-out infinite; }

@keyframes pulse-cta {
  0%, 100% { box-shadow: 0 8px 20px rgba(217, 119, 6, 0.35); }
  50% { box-shadow: 0 10px 28px rgba(217, 119, 6, 0.55); }
}
.btn--primary { animation: pulse-cta 3.5s ease-in-out infinite; }
.btn--primary:hover { animation: none; }

@media (prefers-reduced-motion: reduce) {
  .fade-up, .fade-in, .stagger > * { opacity: 1; transform: none; transition: none; }
  .hero__visual { animation: none; }
  .btn--primary { animation: none; }
}