Clickable video linking to page

Hi there

I have a password-protected website: https://www.elysia-living.ch/ (Password: EL2024)
When entering the password you get to a preview page with a fullscreen video. That page should be clickable and take you to the main page: https://www.elysia-living.ch/home
My problem is that I can't manage to make that page clickable. It is not important to me if the video is inserted fullscreen in the background or embedded as video on the site. The best would be if the video is playing in a loop, without controls and in case WITH audio. You should simply be able to click anywhere and it redirects you to the main page.

At the moment there is also way too much space after the video to the bottom, especially on mobile (no idea how to solve that).

As this is a very important client project, I would be very grateful for your help.
Many thanks and best regards
Sibylle