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

.hidden {
  display: none;
}

#menu, #instructions, #settings {
  text-align: center;
}

button {
  padding: 10px 20px;
  margin: 10px;
  font-size: 16px;
  cursor: pointer;
}

canvas {
  border: 2px solid white;
  background-color: black;
}

#footer {
  position: absolute;
  bottom: 10px;
  right: 10px;
  font-size: 14px;
}