Check Responsive Coding on current fully built site

Current website [login to view URL] - Website is built on a custom panel. Any downloads of the panel will result in legal action or resale of panel. Current site is suppose to be responsive. It does show on mobile devices but the problem is you need to ZOOM OUT to see everything. Especially Iphones & Samsung Devices. Can you figure out what the issue is? When you go to the site it should just show up perfectly with no need to zoom out. I MAY give cpanel login but I'm sure you can look @ the coding yourself and let me know what needs to be changed. Also need done today i'll add a tip. Thanks!