body {
  font-family: Arial, sans-serif;
  background: linear-gradient(to right, #74ebd5, #ACB6E5);
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
}

.app {
  background: white;
  padding: 20px;
  border-radius: 12px;
  text-align: center;
  width: 300px;
  box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

input {
  padding: 10px;
  margin: 10px 0;
  width: 80%;
  border-radius: 8px;
  border: 1px solid #ccc;
}

button {
  padding: 10px 15px;
  border: none;
  border-radius: 8px;
  background-color: #4CAF50;
  color: white;
  cursor: pointer;
}

button:hover {
  background-color: #45a049;
}

.result {
  margin-top: 20px;
  font-size: 18px;
}