@keyframes opacity-out {
  0% {
    opacity: 100%;
  }

  100% {
    opacity: 0%;
  }
}

@keyframes opacity-in {
  0% {
    opacity: 0%;
  }

  100% {
    opacity: 100%;
  }
}

#div-hidden-block {
  display: flex;
  background-color: red;
  transform: translateX(697.6px);
  z-index: 1000;
  transition: transform 0.6s cubic-bezier(0.12, 0.53, 0.54, 0.94);
}

#hidden-block {
  display: flex;
  justify-content: center;
  align-items: center;
  position: absolute;
  background-color: #3d6aff;
  border: 1px solid #3d6aff;
  width: 465.2px;
  height: 538px;
  z-index: 1000;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  transition: all 0.5s cubic-bezier(0.12, 0.53, 0.54, 0.94);
  border-top-right-radius: 20px;
  border-bottom-right-radius: 20px;
}

#hidden-block.state-login {
  animation: border-radius-animation-cadastro 0.5s
    cubic-bezier(0.12, 0.53, 0.54, 0.94);
  transition: all 0.5s cubic-bezier(0.12, 0.53, 0.54, 0.94);
}

#hidden-block.state-cadastro {
  animation: border-radius-animation-login 0.5s
    cubic-bezier(0.12, 0.53, 0.54, 0.94);
  transition: all 0.5s cubic-bezier(0.12, 0.53, 0.54, 0.94);

}

#player-a,
#player-b {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  transition: opacity 0.3s cubic-bezier(0.12, 0.53, 0.54, 0.94);
}