Base apparel coming soon master

Hello

This is a good practice after being busy with college and things, it helps to enjoy a little bit with this project, but the problem that I encountered is that I want to have three different conditional statement, one is for empty strings, correct email, and lastly the incorrect email. The only problem I am having is the empty string or that there is nothing in the input field where the user is supposed to write their email and just submit it. Is there anyway that I can make it possible or is it just because of the true or false boolean that make it impossible?

Psst! Any kind of feedback, tips, or advice are very welcome. It helps to improve my journey to becoming a front-end developer.