body {
    background-color: #ffffff;
    color: #333;
}

    body .navbar, body footer {
        background-color: #f8f9fa;
        color: #333;
    }

    body .card {
        background-color: #ffffff;
        border: 1px solid #ddd;
    }

    body .btn-primary {
        background-color: #007bff;
        border-color: #007bff;
    }