/* One-time fade-up animation */
.fade-up {
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 1.5s ease-out forwards;
}

@keyframes fadeUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* One-time shimmer effect */
.shimmer {
  position: relative;
  display: inline-block;
  overflow: hidden;
}

.shimmer::after {
  content: "";
  position: absolute;
  top: 0; left: -100%;
  width: 100%; height: 100%;
  background: linear-gradient(120deg, transparent, rgba(255,255,255,0.6), transparent);
  animation: shimmer 3s ease forwards;
}

@keyframes shimmer {
  to { left: 100%; }
}
/* Donate shimmer effect (3s shimmer once every 5 minutes) */
@keyframes donateShimmer {
  0% { color: white; text-shadow: none; }
  1% { color: var(--soft-cream); text-shadow: 0 0 8px var(--soft-cream); }
  2% { color: white; text-shadow: none; }
  3% { color: var(--soft-cream); text-shadow: 0 0 8px var(--soft-cream); }
  4% { color: white; text-shadow: none; }
  5% { color: var(--soft-cream); text-shadow: 0 0 8px var(--soft-cream); }
  6% { color: white; text-shadow: none; }
  100% { color: white; text-shadow: none; }
}

.donate-shimmer {
  animation: donateShimmer 300s infinite; /* total cycle = 5 minutes */
}