Responsive css grid, javascript

What are you most proud of, and what would you do differently next time?

the way i designed the email validation and the popup. I want to make a code in javascript to make another one code with minimal lines of codes. im also proud of my use of css grids.

What challenges did you encounter, and how did you overcome them?

I spent alot of time with email validation. i had to finally use AI to get some help because i was stuck.

What specific areas of your project would you like help with?

I need help with the javascript. how can i make a code like i did in with minimal lines of code? Can you help me with form /email validation? i spent alot of time with the form and email. do you have tips and tricks?