A fully Responsive shopping cart, using vanilla JavaScript and CSS

It’s been long I picked up a challenge, so I decided to do this challenge, and it was indeed a challenge, this should be my first complex project with JavaScript, so I could have submitted this before now, but I was also learning during the process which coursed me to make frequent changes to the code by making it as short as possible.

Any recommendation on best practice will be appreciated 🙏🏽