body {
    font-family: Arial, sans-serif;
    max-width: 600px;
    margin: 20px auto;
    padding: 20px;
    background-color: #f4f4f4;
}

h1 {
    text-align: center;
    color: #333;
}

.calculator {
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

label {
    display: block;
    margin: 10px 0 5px;
}

input {
    width: 100%;
    padding: 8px;
    margin-bottom: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
}

button {
    background-color: #4CAF50;
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    margin: 5px;
}

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

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

#leaveSection {
    margin-top: 20px;
    display: none;
}