I suspect I know what is going on …
Your site is served through an HTTPS connection, but your assets are linked via HTTP URLs:
<!-- Bootstrap -->
<link href="http://netdna.bootstrapcdn.com/bootstrap/3.0.0/css/bootstrap.no-icons.min.css" rel="stylesheet">
<!-- Icons -->
<link href="http://netdna.bootstrapcdn.com/font-awesome/4.0.3/css/font-awesome.css" rel="stylesheet">
<!-- Fonts -->
<link rel="stylesheet" href="http://fonts.googleapis.com/css?family=Alice|Open+Sans:400,300,700">
This results in most modern browsers refusing to load those assets:
And because most of your page layout is dependent on the Bootstrap and Google Fonts being loaded, your layout gets rendered all wonky
All you should have to do is change those URLs I pointed out to HTTPS and things should look much better.
I hope that helps!