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

body {
  background: #000;
  color: #fff;
  font-family: "Courier New", monospace;
  overflow: hidden;
}

#gameContainer {
  position: relative;
  width: 100vw;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
}

#gameCanvas {
  border: 2px solid #333;
  background: #000;
  cursor: none;
  transition: all 0.3s ease;
}

#ui {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 10;
}

#crosshair {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: #fff;
  font-size: 20px;
  font-weight: bold;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.8);
}

#instructions {
  position: absolute;
  top: 20px;
  left: 20px;
  background: rgba(0, 0, 0, 0.7);
  padding: 10px;
  border-radius: 5px;
  font-size: 14px;
  line-height: 1.4;
}

#instructions p {
  margin: 5px 0;
}