body {
  font-family: Arial, sans-serif;
}
.calculator-container {
  background: #fff;
  padding: 30px;
  max-width: 420px;
  margin: 20px auto;
  border-radius: 10px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}
h2 {
  text-align: center;
  color: #5c2d91;
  margin-bottom: 20px;
}
.form-group {
  margin-bottom: 15px;
}
label {
  font-weight: bold;
  display: block;
  margin-bottom: 5px;
}
input, select, button {
  width: 100%;
  padding: 10px;
  border-radius: 5px;
  border: 1px solid #ccc;
  font-size: 14px;
}
button {
  background-color: #5c2d91;
  color: white;
  border: none;
  margin-top: 10px;
}
button:hover {
  background-color: #4b2379;
}
.result {
  text-align: center;
  font-size: 18px;
  margin-top: 20px;
  color: green;
}
.conditional {
  display: none;
}