#acc-calculator {
    border: 1px solid #ddd;
    padding: 20px;
    border-radius: 8px;
    max-width: 500px;
    margin: 20px auto;
    background: #fafafa;
    font-size: 16px;
}

#acc-calculator h3 {
    margin-top: 0;
}

#acc-total {
    margin: 15px 0;
    font-size: 18px;
    font-weight: bold;
}

#acc-add-to-cart {
    background: #2271b1;
    color: #fff;
    border: none;
    padding: 10px 20px;
    border-radius: 4px;
    cursor: pointer;
}