body {
  font-family: Arial, sans-serif;
  background: linear-gradient(to right, #88cc88, #cceeff);
  margin: 0;
  padding: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

.container {
  background: white;
  padding: 30px;
  border-radius: 15px;
  box-shadow: 0 0 15px rgba(0,0,0,0.2);
  max-width: 500px;
  text-align: center;
}

button {
  padding: 10px 20px;
  background: #2ecc71;
  color: white;
  border: none;
  border-radius: 8px;
  margin-top: 20px;
  cursor: pointer;
}

button:hover {
  background: #27ae60;
}

#options button {
  display: block;
  margin: 10px auto;
  width: 100%;
}

.hidden {
  display: none;
}