body {
  font-family: Arial, sans-serif;
  max-width: 600px;
  margin: 0 auto;
  padding: 20px;
  background: #f9f9f9;
  color: #333;
}

h1 {
  text-align: center;
}

p {
  text-align: center;
}

.calculator {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 20px;
}

label {
  display: flex;
  flex-direction: column;
  font-weight: bold;
}

input {
  padding: 8px;
  font-size: 16px;
}

button {
  padding: 10px;
  font-size: 16px;
  background: #4caf50;
  color: white;
  border: none;
  cursor: pointer;
  margin-top: 10px;
  border-radius: 5px;
  transition: background 0.3s;
}

button:hover {
  background: #45a049;
}

.result {
  margin-top: 20px;
  background: #fff;
  padding: 15px;
  border-radius: 5px;
  box-shadow: 0 0 5px rgba(0,0,0,0.1);
}

.disclaimer {
  margin-top: 30px;
  font-size: 0.9em;
  color: #666;
}