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

body {
  font-family: 'Noto Sans', sans-serif;
  background: #000;
  overflow: hidden;
  touch-action: none;
}

#game-container {
  width: 100vw;
  height: 100vh;
  position: relative;
  display: flex;
  flex-direction: column;
}

#score {
  position: absolute;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  color: #fff;
  font-size: 24px;
  font-weight: bold;
  z-index: 10;
  text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
}

#game-canvas {
  width: 100%;
  height: 100%;
  display: block;
  cursor: pointer;
}

#game-over {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: rgba(0, 0, 0, 0.9);
  padding: 40px;
  border-radius: 8px;
  text-align: center;
  z-index: 20;
}

#game-over.hidden {
  display: none;
}

#final-score {
  color: #fff;
  font-size: 32px;
  font-weight: bold;
  margin-bottom: 24px;
}

#restart-btn {
  background: #fff;
  color: #000;
  border: none;
  padding: 16px 32px;
  font-size: 20px;
  font-weight: bold;
  border-radius: 4px;
  cursor: pointer;
  transition: transform 0.1s;
}

#restart-btn:active {
  transform: scale(0.95);
}