#income-calculator {
    max-width: 500px;
    margin: 20px auto;
    padding: 20px;
    background-color: #f9f9f9;
    border: 1px solid #ddd;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    font-family: 'Arial', sans-serif;
    color: #333;
}

#income-calculator label {
    font-weight: bold;
}

#income-calculator select, 
#income-calculator input[type="number"] {
    width: 100%;
    padding: 10px;
    margin-bottom: 15px;
    border-radius: 4px;
    border: 1px solid #ccc;
}

#result {
    margin-top: 20px;
    padding: 10px;
    border-radius: 4px;
    background: #e9f7df;
    font-weight: bold;
}