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

body {
  background: #1a1a2e;
  font-family: Arial, sans-serif;
  overflow: hidden;
}

#game {
  position: relative;
  width: 100vw;
  height: 100vh;
}

#gameCanvas {
  width: 100%;
  height: 100%;
  background: linear-gradient(to bottom, #87CEEB, #228B22);
}

#ui {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

#health {
  position: absolute;
  top: 20px;
  left: 20px;
  color: white;
  font-size: 24px;
  font-weight: bold;
  background: rgba(0,0,0,0.5);
  padding: 10px 20px;
  border-radius: 10px;
  pointer-events: auto;
}

#controls {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 15px;
}

button {
  padding: 20px 30px;
  font-size: 18px;
  border: none;
  border-radius: 50%;
  background: rgba(255,255,255,0.2);
  color: white;
  pointer-events: auto;
  touch-action: manipulation;
  min-width: 70px;
  min-height: 70px;
}

button:active {
  background: rgba(255,255,255,0.4);
}