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

body {
  background: #070b0f;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100vh;
  overflow: hidden;
  font-family: 'Courier New', monospace;
  user-select: none;
}

#gameCanvas {
  display: block;
  border: 1px solid #21262d;
  cursor: crosshair;
  /* Scale down on smaller viewports while keeping resolution at 1280×720 */
  max-width: 100vw;
  max-height: calc(100vh - 36px);
  width: auto;
  height: auto;
}

#controls-hint {
  margin-top: 10px;
  color: #484f58;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}