:root {
  color-scheme: dark;
}

body {
  margin: 0;
  background-color: #0a0a0a;
  overflow: hidden;
  font-family: monospace;
  color: #cfcfcf;
  /* Центрируем ограниченное окно игры */
  display: grid;
  place-items: center;
  height: 100vh;
}

canvas {
  display: block;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
  border: 1px solid #222;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.06) inset;
}

.help {
  position: fixed;
  left: 8px;
  bottom: 8px;
  color: #9bd4ff;
  font-size: 12px;
  opacity: 0.85;
  pointer-events: none;
  user-select: none;
}

.toast {
  position: fixed;
  right: 8px;
  bottom: 8px;
  background: rgba(10, 10, 10, 0.75);
  border: 1px solid #333;
  padding: 6px 8px;
  border-radius: 6px;
  font-size: 12px;
}