Crowdfunding product page [Parcel/SASS/BEM]

So far this has been the most challenging project I made, I'm not sure if my JavaScript is good enough, I made everything work, but I think I need to improve my code to make it more readable and maybe work with fewer lines. Question for everyone: for my bookmark button, whenever I click on it to change its styles my :hover effect, disappears, any idea how to fix this without using "mouseover" and "mouseout" events?

Things to improve:

• I must add aria-label to some elements to improve controls for screen readers.
• I did not know that you can not put "label" tags inside "button" tags, I did that to make the modal selection effect.
• Fix bookmark hover effect.
• Add smooth animation to some elements.