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I used grid to keep everything in place in pc view and flex in mobile view. Structure and styling was quite easy to do but I have my JavaScript. I would appreciate any comment on how I could make the js more neat and definitely shorter and more automatic.

Main challenge for me was a practice of making burger button for mobile layouts and dropdown navigation bar (submenu). Javascript part is pretty simple - just toggling css classes for visibility of particular objects. Styling for various layouts took me the most time due to some mistakes I had to correct in the end.

I used array from the .js file (copied from .json) as I didn't manage to insert data and style of the charts from external file. Some things worked, others didn't. I need to come back to this after I learn more about working with external APIs.

Beside this, I think i managed it pretty well. Styling and responsive parts were really easy (no media queries need for this to make it mobile/pc friendly).

Floating credit card visualisation was a challenge, especially with the responsive design and data fields to be in correct places.

JS script took me some time and I had to rewrite it once or twice. It surely could be done in a nicer way. I'd be happy to hear Your comments on how to imporve form validation.

Content added manually with html for the sake of excercise though I'd like to learn how to add such content from the backend later on. I made a simple JS to control toggle new notifications. I'd appreciate any tips on how to make it better.

Issus I had with this project:

• accordion - I had to rebuild it several times so css might not be so clean now.
• reponsiveness - there are 3 images that had to be one on another in the same position and styled differently depending on whether it's mobile or pc view.

I had issues with validating email with js. I ended up checking only '@' in the address. I didn't encounter issues with reponsive layout. I am unsure about styling border with js. If I want to change it to red for an error, it's ok. But I'm not happy with it getting back to default style after the correct email is provided.