body {
  font-family: Arial, sans-serif;
  background-color: #f0f0f0;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  margin: 0;
}

.container {
  text-align: center;
  background-color: #fff;
  padding: 20px;
  border-radius: 10px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.3);
}

h1 {
  margin-bottom: 20px;
}

button {
  padding: 12px 24px;
  background-color: #4CAF50;
  border: none;
  color: white;
  cursor: pointer;
  border-radius: 5px;
  font-size: 16px;
  margin: 10px 5px;
  transition: background-color 0.3s, transform 0.1s;
}

button:hover {
  background-color: #45a049;
  transform: scale(1.05);
}

button:active {
  background-color: #3e8e41;
  transform: scale(0.95);
}

.hide {
  display: none;
}

#result {
  margin-top: 20px;
  font-weight: bold;
}