Takeoff: Responsive, Open-Source Landing Page Template for Apps

Hi everyone! A few months ago, Product Hunt introduced me to Google Primer (https://www.yourprimer.com/), which is a great resource. I loved their landing page - it's simple and elegant. But it wasn't open-source. A landing page is the first thing your potential users will see, so it's important to get it right. But making a decent landing page can be time-consuming, taking away resources from developing your app. So I created Takeoff as an open-source landing page template that is a little different than the rest, and one which anyone can use and contribute to. Here are two more examples of Takeoff in action - Skeduo (http://www.skeduo.com/) and Jigbell (http://jigbell.com/) I'd welcome any feedback, suggestions, good or bad! (You can also post bugs/issues on the GitHub link) Thanks for all your time!