Change logo size

Hi!
You have a great theme there. Thank you!
I’d like to know if it is possible to change the logo size. The logo I’m using in this page needs to be bigger as to look good.
I have tried changing the css of
.site-header .custom-logo-link img
but I haven’t been able to do a good job.

Could you help me please?

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