body {
  font-family: Arial, sans-serif;
  text-align: center;
  background: linear-gradient(to top, #87ceeb, #ffffff);
  margin: 0;
  padding: 20px;
  overflow: hidden;
}

h1 {
  margin-bottom: 10px;
  color: #333;
}

p {
  font-size: 18px;
  margin: 10px 0;
}

select, button {
  padding: 5px 10px;
  font-size: 16px;
  margin-left: 5px;
}

#gameArea {
  position: relative;
  width: 100%;
  height: 70vh;
  overflow: hidden;
  touch-action: manipulation;
}

.balloon {
  position: absolute;
  width: 60px;
  height: 80px;
  border-radius: 50% 50% 50% 50%;
  cursor: pointer;
  animation: floatUp linear;
}

@keyframes floatUp {
  from { bottom: -100px; }
  to { bottom: 100vh; }
}

#gameOverScreen {
  position: absolute;
  top: 30%;
  left: 50%;
  transform: translate(-50%, -30%);
  background: white;
  padding: 20px;
  border: 2px solid #333;
  border-radius: 10px;
}