body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  background: #0b0b12;
  color: #f2f2f2;
  font-family: 'Courier New', Courier, monospace;
}

h1 {
  margin: 0;
  letter-spacing: 6px;
}

.instructions {
  margin: 0;
  color: #9a9aa5;
  font-size: 14px;
}

#gameCanvas {
  background: #000;
  border: 2px solid #444;
}