Uploading Custom Font – Theme

Hi,

I have tried searching the forum for an answer, however I am yet to come accross one.

I am currently building this website:

Using a templactic Rejuvenate Theme.

My client would like to use the font in their logo as the font face for all text on the site. The font is called Champagne & Limousines (can be found here ).

I have tried uploading the font files to the cpanel library under the theme and editing the style sheet (which I am not sure whether it is used, there are two), I have tried editing the custom CSS child theme and a few other ways.

I emailed the theme designers and they said that it is against their support policy to help out with customising the theme however they did send be a hint:
html body, body .accordion dd > a, body button, body .button, body .label, body .pricing-table .title, body .pricing-table .price, body .side-nav, body .side-nav li.active > a:first-child:not(.button), body .sub-nav dt, body .sub-nav dd, body .sub-nav li, body .tabs dd > a, body .top-bar-section ul li > a, body h1, body h2, body h3, body h4, body h5, body h6, body .commentlist .comment-reply-link{font-family: '<?php echo $css_gogole_font; ?>', sans-serif;}

Which is located in the theme Header.php file, I have tried to edit this.

Also the Style CSS on the admin panel is empty however if you have a look through the directories in the c-panel I found another Style.css sheet which is full of code. This contains what I think is the coding for all of the font faces (which are google web fonts), I tried to edit this and upload it to C-panel with no result.

I am quiet novice, so please call me out if this has already been solved or that I am missing something obvious.

Regards
Harry