Homepage/Headers Not Mobile Friendly

Love the look of the theme, but the front page slider and headers seem not to be mobile friendly.

The screen is not resizing properly in portrait views (the last couple of letters of the site name are cut off and require scrolling to see them). This issue can seen with the Juno website: http://juno-demo.smartcatdev.wpengine.com/. Open that up on a mobile device and view in portrait orientation. For example, the screen “A BEAUTIFUL, HIGHLY CUSTOMIZABLE THEME” shows up as “A BEAUT HIGH CUSTOMI THEM”.

On subsequent pages, there only seems to be a size compatibility issue with the header. In-page content is resized properly and can be seen without scrolling horizontally.

Is there a way to get all the content (including on the home page) to show up on one screen without horizontal scrolling? I love the theme and want to use it, but a mobile compatibility issue is definitely a dealbreaker.

Thanks!