WordPress Admin Login Custom Styling

functions.php

<?php
function my_custom_login_styles() { ?>
    <style type="text/css">
        body.login {
            background-color: #114892 !important;
        }

        body.login div#login h1 a {
            background-image: url(<?php echo get_stylesheet_directory_uri() ?>/images/site-login-logo.png);
            padding-bottom: 15px;
            background-size: auto;
            width: auto;
        }

        .login.login #nav a, .login.login #backtoblog a {
            color: #fff;
            text-shadow: 0 1px 2px #000;
        }

        .login h1 a {
            width: auto;
            -webkit-background-size: auto;
            background-size: auto;
        }
    </style>
<?php }
add_action( 'login_enqueue_scripts', 'my_custom_login_styles' );

function my_custom_login_logo_url() {
    return home_url();
}
add_filter( 'login_headerurl', 'my_custom_login_logo_url' );
 
function my_custom_login_logo_url_title() {
    return get_bloginfo('name');
}
add_filter( 'login_headertitle', 'my_custom_login_logo_url_title' );