body {
  margin: 0;
  background: #0a0a1a;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  font-family: Arial, sans-serif;
  color: white;
}

#game-container {
  position: relative;
  width: 900px;
  height: 600px;
  border: 2px solid #444;
  background: #04162a;
  box-shadow: 0 10px 30px rgba(0,0,0,0.3);
  border-radius: 12px;
  overflow: hidden;
}

canvas {
  display: block;
  width: 100%;
  height: 100%;
}

#hud {
  position: absolute;
  top: 10px;
  left: 10px;
  right: 10px;
  display: flex;
  justify-content: space-between;
  padding: 10px;
  background: rgba(0,0,0,0.3);
  border-radius: 8px;
  font-size: 18px;
  font-weight: bold;
}

#controls {
  position: absolute;
  bottom: 10px;
  left: 10px;
  display: flex;
  gap: 10px;
}

button {
  background: #6a8dff;
  border: none;
  padding: 8px 16px;
  border-radius: 6px;
  color: white;
  font-weight: bold;
  cursor: pointer;
}

button:hover {
  background: #8aacff;
}