/* Overlay Container */
.dee-overlay-transition {
  position: fixed;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
  background-color: #3d667f; /* or use var(--your-fade-color) */
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  z-index: 999999;
  transition: opacity 0.5s ease-in-out;
}

/* Dee */
.dee-center-flap {
  width: 125px;
  height: 125px;
  background: url('/assets/images/dee-sprite-16.png') repeat;
  background-size: 1600% auto;
  animation: none;
  opacity: 0;
  transform: scale(1);
  transition: opacity 0.3s ease, transform 0.4s ease;
}

/* Triggered Styles */
.dee-overlay-transition.active {
  opacity: 1;
  pointer-events: all;
}

.dee-center-flap.flapping {
  animation: flapWings 1s steps(16) infinite;
  opacity: 1;
  transform: scale(1.1);
}

/* Optional fade out */
.dee-center-flap.fade-out {
  opacity: 0;
  transform: scale(0.9);
}

/* Sprite Animation */
    @keyframes flapWings {
      0%   { background-position: 0 0; }
      100% { background-position: -4000px 0; }
    }