body {
  background-color: #111;
  color: #eee;
  font-family: sans-serif;
  text-align: center;
}

canvas {
  background-color: #222;
  border: 1px solid #444;
  cursor: pointer;
  max-width: 100%;
  height: auto;
}

.controls {
  margin: 20px auto;
  text-align: center;
  max-width: 800px;
  width: 90%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
}

.controls button {
  background-color: #444;
  border: 1px solid #666;
  color: #eee;
  padding: 10px 20px;
  margin: 5px;
  cursor: pointer;
  font-size: 1em;
  border-radius: 5px;
  transition: background-color 0.3s;
}

.controls button:hover {
  background-color: #555;
}

.controls ul {
  list-style: none;
  padding: 0;
  text-align: left;
  margin-top: 20px;
}

.controls li {
  margin-bottom: 10px;
}



footer {
  margin-top: 20px;
  font-size: 0.9em;
  text-align: center;
}

footer a {
  color: #8af;
  text-decoration: none;
}

footer a:hover {
  text-decoration: underline;
}