I just downloaded your theme and I am already loving it. Just a small problem: I noticed that the page title (in the tab) wasn't showing so I looked at the page source and you seem to be missing an end quote on a meta tag near the top.
I edited the
header.php file and replaced this line:
<meta name="viewport" content="width=device-width, initial-scale=1.0 />
With this line:
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
As you can see all I did was add a double quote mark to the end. It would be great if you fixed this problem in the next theme update. Great theme anyway!