Transparency not working on navigation menu

Hi,

I am using Hestia for my personal site on this url: https://www.francescomastrorizzi.it/

I have a problem with navigation menu not showing totally transparent on the front page (before scrolling), because of a white band at top of the page.

I’d also like that menu items were white when navigation menu is transparent and dark after scrolling.

Thanks for help
Francesco

The page I need help with: [log in to see the link]