body {
  font-family: Arial, sans-serif;
  text-align: center;
  background: #f0f8ff;
  margin: 0;
  padding: 20px;
}

h1 {
  color: #ff6b00;
}

.instruction {
  font-size: 18px;
}

#animals {
  font-size: 50px;
  margin: 20px 0;
}

.numbers button {
  font-size: 24px;
  padding: 15px 25px;
  margin: 10px;
  border-radius: 12px;
  border: none;
  background: #4CAF50;
  color: white;
  cursor: pointer;
}

.numbers button:hover {
  background: #43a047;
}

#result {
  font-size: 20px;
  margin-top: 15px;
}

#next {
  display: none;
  margin-top: 15px;
  font-size: 18px;
  padding: 10px 20px;
}