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

body {
  background: #0d1117;
  color: #c9d1d9;
  font-family: 'Courier New', monospace;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: 100vh;
  padding: 1rem;
  gap: 1rem;
}

h1 {
  font-size: 1.4rem;
  letter-spacing: 0.12em;
  color: #58a6ff;
  text-transform: uppercase;
}

#game-wrap {
  position: relative;
  box-shadow: 0 0 32px rgba(88, 166, 255, 0.18);
  border: 1px solid #30363d;
}

canvas {
  display: block;
  image-rendering: pixelated;
}

#controls {
  font-size: 0.72rem;
  color: #6e7681;
  text-align: center;
  line-height: 1.7;
}

#controls kbd {
  background: #161b22;
  border: 1px solid #30363d;
  border-radius: 3px;
  padding: 0 5px;
  color: #c9d1d9;
}