#countdown-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: transparent;
  opacity: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: background 1s cubic-bezier(0.7, -0.2, 0.3, 1.2);
}

#countdown-overlay.fade-in {
  background: rgba(0, 0, 0, 0.6);
  opacity: 1;
}

#countdown-overlay.fade-out {
  opacity: 0 !important;
  transition: opacity 1s cubic-bezier(0.7, -0.2, 0.3, 1.2);
}

#countdown-number {
  color: #fffbe7;
  font-size: 100px;
  font-family:
    "Comic Relief", "Comic Sans MS", "Comic Sans", cursive, sans-serif;
  font-weight: bold;
  text-shadow:
    0 0 20px #000,
    0 0 40px #f0b353;
  transform: scale(1);
  transition:
    transform 0.45s cubic-bezier(0.7, -0.2, 0.3, 1.2),
    opacity 0.7s;
  will-change: transform, opacity;
  position: relative;
  z-index: 2;
}

.countdown-blur-bg {
  position: absolute;
  height: 100%;
  width: 100%;
  backdrop-filter: blur(3px);
  opacity: 1;
  transition: opacity 1s cubic-bezier(0.7, -0.2, 0.3, 1.2);
  z-index: 1;
}