body {
  margin: 0;
  overflow: hidden;
  background: black;
}

canvas {
  display: block;
}

#gameUI {
  position: absolute;
  top: 20px;
  left: 20px;
  color: white;
  font-family: sans-serif;
  font-size: 24px;
}

#gameOver {
  display: none;
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.8);
  justify-content: center;
  align-items: center;
  color: white;
  font-size: 48px;
  font-family: sans-serif;
}

#instructions {
  position: absolute;
  top: 80px;
  left: 1300px;
  color: white;
  font-family: 'Arial', sans-serif;
  font-size: 18px;
  max-width: 600px;
  line-height: 1.8;
}

#instructions h2 {
  font-size: 28px;
  margin-bottom: 10px;
  text-decoration: underline;
}

#instructions ul {
  list-style-type: disc;
  padding-left: 20px;
  font-size: 20px;
}

#instructions ul ul {
  list-style-type: circle;
  padding-left: 20px;
}

.gold {
  color: gold;
}