Many of you, I believe, are familiar with the WordPress login page at wp-login.php. It looks nice, and works fine. But when it comes to creating a website for clients, you might want a more customized login page, so that it integrates nicely with the website design as a whole. In addition, having a customized login page could also give your clients a good impression of your skills.
If this is something that you want to achieve on your site, here’s how you can build a fully customized WordPress login page.
Custom Login Page
First, we need to create a custom page template for the login page. To do so, you can create a new page template and name it – for example – page-login.php. Then, create a new Page from the WordPress backend and set the permalink to login so that WordPress will automatically take the page-login.php template for the page.
https://www.hongkiat.com/blog/wordpress-custom-loginpage/