.calculator-container {
  max-width: 400px;
  margin: 0 auto;
  padding: 20px;
  background: linear-gradient(135deg, rgba(106, 17, 203, 0.9), rgba(37, 117, 252, 0.9)); /* Pale blue background */
  border-radius: 10px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
  color: white;
  text-align: center;
}

h1 {
  font-size: 32px;
  margin-bottom: 20px;
}

.radio-group {
  margin: 15px 0;
}

label {
  display: block;
  margin-bottom: 5px;
  font-weight: bold;
}

input[type="number"] {
  width: 100%;
  padding: 10px;
  margin-bottom: 15px;
  border: none;
  border-radius: 5px;
  font-size: 16px;
}

button {
  width: 100%;
  padding: 10px;
  background: #4caf50;
  color: white;
  border: none;
  border-radius: 5px;
  font-size: 20px;
  cursor: pointer;
}

button:hover {
  background: #45a049;
}

.result {
  margin-top: 20px;
  font-size: 22px;
  font-weight: bold;
  color: #4caf50; /* Green color */
  text-shadow: 
    -1px -1px 0 #000,  
    1px -1px 0 #000,
    -1px 1px 0 #000,
    1px 1px 0 #000; /* Text border effect */
}