Positioning & formatting language switcher inside main nav menu

Hi, thank you for this plugin! Works great for me except I’ve having trouble formatting and positioning it using html. I’m really not good at HTML and have done my best!

My site is here:
https://en.festivalitoturco.com

I have the latest version of WP and my theme, Jupiter.

The homepage main nav behaves differently than the other pages. In any case, if the language switcher text could be a light grey (#cccccc) then it will be visible on all pages. I can’t seem to change the font color and have tried everything!

I used this HTML before the list:
<b><p><span style="color: #999999 !important;">

and this after:
</span></p></b>

Note: Without the <p></p> the language switcher appears on the line above the main nav… so I prefer it on the line below. I would love to have it on the same line as the main nav items but I haven’t managed to figure out how to do that.

Any help with this would be very appreciated!

Thank you!
Kristin

https://www.ads-software.com/plugins/mslsmenu/