mobile view first solution using flexbox css and vanilla javascript

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

next time I would use grid layout just to practice different layout. I am proud that I am getting more fluent with code by every new project thanks to frontendmentor!

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

I had challenge to figure out regular expression for password and email, I watch video to understand what the pattern is meaning and generate regex by GPT after mine own had few issues :-)