WordPress Custom Login Screen

login_screen.php

/* 
 * LOGIN SCREEN
 */

// Logo
function sd_custom_login_logo() { ?>
    <style type="text/css">
        body.login div#login h1 a {
            background-image: url(<?php echo get_bloginfo( 'template_directory' ) ?>/img/logo-login.png);
            padding-bottom: 10px;
        }
    </style>
<?php }
add_action( 'login_enqueue_scripts', 'sd_custom_login_logo' );

// Link
function sd_custom_login_logo_url() {
    return get_bloginfo( 'url' );
}
add_filter( 'login_headerurl', 'sd_custom_login_logo_url' );

// Title
function sd_custom_login_logo_url_title() {
    return get_bloginfo( 'blogname' );
}
add_filter( 'login_headertitle', 'sd_custom_login_logo_url_title' );