.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

.reveal-stagger > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.reveal-stagger.is-visible > *:nth-child(1) { opacity: 1; transform: none; transition-delay: 0.0s; }
.reveal-stagger.is-visible > *:nth-child(2) { opacity: 1; transform: none; transition-delay: 0.1s; }
.reveal-stagger.is-visible > *:nth-child(3) { opacity: 1; transform: none; transition-delay: 0.2s; }
.reveal-stagger.is-visible > *:nth-child(4) { opacity: 1; transform: none; transition-delay: 0.3s; }
.reveal-stagger.is-visible > *:nth-child(5) { opacity: 1; transform: none; transition-delay: 0.4s; }
.reveal-stagger.is-visible > *:nth-child(6) { opacity: 1; transform: none; transition-delay: 0.5s; }

@keyframes btn-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(245,158,11,0.4); }
  50%       { box-shadow: 0 0 0 12px rgba(245,158,11,0); }
}

.btn--gold {
  animation: btn-pulse 2.5s infinite;
}

.btn--gold:hover {
  animation: none;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.4; }
}

.ai-status-dot {
  animation: pulse-dot 2s infinite;
}

@keyframes particle-fall {
  0% { transform: translateY(-5vh) rotate(0deg); opacity: 1; }
  100% { transform: translateY(105vh) rotate(360deg); opacity: 0; }
}