Responsive E-commerce product page (HTML/CSS/JS)

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

Hello, here is my solution for this really cool project :)

I'm very proud of how much my website looks like compared to the original design ! Moreover, I think that the responsiveness is pretty decent. Also, I used "localStorage" to keep the amount of the product to the cart even if the user leaves the page !

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

Concerning the challenges, I made a "focus" section by clicking on wide product pictures (rather than having the same section with a slider etc...). I tried but it was too complicated for me...

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

I would like you to tell me if my code (whether HTML, CSS or JavaScript) is correct ? Maybe also if there is a section that I could have done differently ?

I will take all the help I can get ! Thanks for taking a look at my solution :)