.petals-layer, .sparkles-layer {
  position: fixed; inset: 0; pointer-events: none; z-index: 0;
}
.petals-layer::before, .petals-layer::after {
  content: '❀'; position: absolute; color: rgba(199,155,79,.35); animation: floatPetals 12s linear infinite;
}
.petals-layer::before { left: 8%; top: -10%; font-size: 1.4rem; }
.petals-layer::after { right: 8%; top: -10%; font-size: 1.2rem; animation-duration: 16s; }
.sparkles-layer::before, .sparkles-layer::after {
  content: '✦'; position: absolute; color: rgba(143,165,139,.35); animation: sparkles 8s linear infinite;
}
.sparkles-layer::before { left: 20%; bottom: 8%; }
.sparkles-layer::after { right: 20%; top: 20%; animation-duration: 10s; }
@keyframes floatPetals {
  0% { transform: translate3d(0,0,0) rotate(0deg); }
  100% { transform: translate3d(0,110vh,0) rotate(360deg); }
}
@keyframes sparkles {
  0% { transform: translateY(0) scale(0.9); opacity: 0; }
  50% { opacity: 1; }
  100% { transform: translateY(-20px) scale(1.1); opacity: 0; }
}
@keyframes bounceHint {
  0%, 100% { transform: translateX(-50%) translateY(0); opacity: .8; }
  50% { transform: translateX(-50%) translateY(8px); opacity: 1; }
}