#startScreen {
  position: fixed;
  z-index: 9999;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 34, 46, 1);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  transition: opacity 0.5s;
}
#startScreenPokeball {
  width: 180px;
  height: 180px;
  filter: drop-shadow(0 0 24px rgba(255, 255, 255, 0.4));
  transform: scale(2.1) translateY(0);
  opacity: 1;
  animation: pokeballIn 0.7s cubic-bezier(.68,-0.55,.27,1.55) forwards;
}
#startScreenButton {
  width: 180px;
  font-size: 1.2rem;
  margin-top: 15px;
  color: rgba(69, 74, 83, 1) !important;
  background: rgb(231, 232, 236) !important;
  border: 1px solid    rgba(69, 74, 83, 0.5)!important;
  border-radius: 0.7rem;
  box-shadow: 0 0.5px 0 0 #fff inset,
              0 2.5px 8px 0 rgba(69, 74, 83, 0.01),
              0 0.5px 0 0 #f3f4f6 inset;
  transition: all 0.2s ease-in-out;
  transform: scale(1) translateY(0);
  opacity: 1;
  animation: startButtonIn 0.7s cubic-bezier(.68,-0.55,.27,1.55) forwards;
  animation-iteration-count: 1;
  animation-fill-mode: forwards;
  margin-left: 9px;
  border-bottom-left-radius: 50px;
  border-bottom-right-radius: 50px;
}
#startScreenButton:hover {
  background: #f0f0f0 !important;
  box-shadow: 0 1px 2px 0 rgba(69, 74, 83, 0.07),
              0 1.5px 0 0 #fff inset,
              0 0.5px 0 0 #f3f4f6 inset,
              0 2px 8px 0 rgba(69, 74, 83, 0.04) inset;
  transform: scale(0.98) translateY(1px);
}
#startScreenButton:active {
  background: rgb(231, 232, 236) !important;
  box-shadow: 0 1.5px 6px 0 rgba(69, 74, 83, 0.10) inset,
              0 1.5px 0 0 #fff inset,
              0 0.5px 0 0 #f3f4f6 inset;
}

@keyframes pokeballIn {
  0% {
    transform: scale(0.5) translateY(80px);
    opacity: 0;
  }
  100% {
    transform: scale(2.1) translateY(0);
    opacity: 1;
  }
}

@keyframes pokeballOut {
  0% {
    transform: scale(2.1) translateY(0);
    opacity: 1;
  }
  100% {
    transform: scale(0.5) translateY(-80px);
    opacity: 0;
  }
}

@keyframes startButtonIn {
  0% {
    transform: scale(0.5) translateY(80px);
    opacity: 0;
  }
  100% {
    transform: scale(1) translateY(0);
    opacity: 1;
  }
}

@keyframes startButtonOut {
  0% {
    transform: scale(1) translateY(0);
    opacity: 1;
  }
  100% {
    transform: scale(0.5) translateY(-80px);
    opacity: 0;
  }
}

@media (max-width: 600px) {
  #startScreenPokeball {
    width: 100px;
    height: 100px;
  }
  #startScreenButton {
    width: 135px;
    font-size: 0.95rem;
    margin-top: -1px;
  }
}