Can we secure/rename wp-admin / wp_login.php

Is there any way to rename these files and folders?
I’m working on a site for someone and they want all directories and
files that indicate it’s a wordpress site, removed or changed.
I have changed the wp-content folder with now issues.
I have managed to clean up the main page source code a bit by renaming w–contend directory, but w-included and wp-admin remain.
Also i made some changes so the admin login url has a different path.
Also any login links to wp-login.php

Any advice please?

Thank you