* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  background: linear-gradient(to bottom, #87ceeb 0%, #98fb98 100%);
  font-family: "Arial", sans-serif;
  overflow: hidden;
}

#gameContainer {
  position: relative;
  border: 3px solid #333;
  border-radius: 10px;
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.3);
}

#gameCanvas {
  display: block;
  background: linear-gradient(to bottom, #87ceeb 0%, #98fb98 70%, #90ee90 100%);
}

#gameInfo {
  position: absolute;
  top: 20px;
  left: 20px;
  color: white;
  font-size: 24px;
  font-weight: bold;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
  z-index: 10;
}

#instructions {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  color: white;
  font-size: 18px;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
  z-index: 10;
}

#gameOver {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  color: white;
  font-size: 24px;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
  z-index: 10;
  display: none;
  background: rgba(0, 0, 0, 0.7);
  padding: 30px;
  border-radius: 15px;
}

button {
  background: #4caf50;
  color: white;
  border: none;
  padding: 10px 20px;
  font-size: 16px;
  border-radius: 5px;
  cursor: pointer;
  margin-top: 15px;
  transition: background 0.3s;
}

button:hover {
  background: #45a049;
}