body {
  margin: 0;
  height: 100vh;
  background: linear-gradient(135deg, #ff9a9e, #fad0c4);
  display: flex;
  justify-content: center;
  align-items: center;
  font-family: system-ui;
}

.card {
  background: rgba(0,0,0,0.75);
  color: white;
  padding: 30px;
  border-radius: 20px;
  text-align: center;
  width: 400px;
}

button {
  margin-top: 15px;
  padding: 12px 24px;
  background: #ff4d6d;
  border: none;
  border-radius: 10px;
  color: white;
  cursor: pointer;
}

.hidden {
  display: none;
}

#park {
  text-align: center;
}

canvas {
  background: #111;
  border-radius: 16px;
  margin-top: 10px;
}

#message {
  margin-top: 12px;
  color: white;
  min-height: 40px;
}