body {
  margin: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100vh;
  background-color: black;
  font-family: Arial, sans-serif;
}

h1 {
  color: #0f0;
  margin-bottom: 20px;
}

#controls {
  margin-bottom: 20px;
}

#controls label, #controls input, #controls button {
  margin: 5px;
}

#game-area {
  position: relative;
  width: 800px;
  height: 600px;
  background-color: #222;
  border: 2px solid #0f0;
  overflow: hidden;
}

#player-box {
  position: absolute;
  width: 30px;
  height: 30px;
  background-color: #0f0;
  box-shadow: 0 0 10px #0f0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: #000;
}

.box {
  position: absolute;
  width: 30px;
  height: 30px;
  box-shadow: 0 0 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: #000;
}

#score {
  margin-top: 20px;
  font-size: 24px;
  color: #0f0;
}

#message {
  margin-top: 10px;
  font-size: 18px;
  color: #0f0;
}

#controls {
  margin-top: 20px;
}

#controls button {
  margin: 5px;
  padding: 10px;
  background-color: #0f0;
  border: none;
  color: #000;
  font-size: 16px;
  cursor: pointer;
  box-shadow: 0 0 10px #0f0;
}

#controls button:hover {
  background-color: #0a0;
}