Site Title Doesn't Link to Homepage

I know the site title by default is suppose to link to home page. Can't figure out what I did that broke that. I doesn't look to me that I did anything in CSS that would change that.

url: https://oarfish-swan-hj8k.squarespace.com/
password: Opal240!

Thanks for the help!

Add to Design > Custom CSS

a#site-title {
    position: relative;
    z-index: 99999;
}