:root {
    --back-color: #00FF44;
    --main-color: #000000;
}

.closedBackground{
  visibility: collapse;
}

.openBackground{
  visibility: visible;
}

.openBackground#texture{
  opacity: .5;
  z-index: -31;
}

.openBackground#background{
  mix-blend-mode: difference;
  z-index: -30;
  filter: brightness(133%) saturate(33%) grayscale();
  transform: scale(1.5) rotate(180deg);
  overflow: hidden;
  position: absolute;
}