body {
  font-family: "Poppins", sans-serif;
  margin: 0;
  padding: 0;
  overflow: hidden;
  background: #000000;
  font-size: 1.5rem;
  user-select: none;
  position: relative;
  height: 100vh;
}
#start-screen,
#end-screen {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: #000000;
  color: #ffffff;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 2;
}
#start-screen button,
#end-screen button {
  font-size: 1.5rem;
  cursor: pointer;
  margin-top: 20px;
  background-color: #cea813;
  border: none;
  color: #ffffff;
}
#balloon-container {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
  z-index: 1;
}
.balloon {
  position: absolute;
  bottom: -50px;
  animation: floatUp linear;
  cursor: pointer;
  font-size: 100px;
}
#scoreboard {
  position: absolute;
  top: 10px;
  left: 10px;
  font-size: 1.2rem;
  background-color: #cea813;
  color: #ffffff;
  padding: 8px 15px;
  border-radius: 8px;
  z-index: 3;
}
@keyframes floatUp {
  from {
    bottom: -50px;
    opacity: 1;
  }
  to {
    bottom: 110%;
    opacity: 0.5;
  }
}