Missing default style.css file on reinstall

[DAN]

DAN

August 17, 2015 at 9:40 am

Several sites on my bluehost account got hacked. I reinstalled the virtue premium theme and was able to restore the site, except the default style.css file is empty. All that remains is this:
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/*
Theme Name: Virtue – Premium
Theme URI: *Login to see link
Description: The Virtue theme is extremely versatile with tons of options, easy to customize and loaded with great features. The clean modern design is built with html5 and css3 and uses the powerful responsive framework from Bootstrap to be a fully responsive and mobile friendly. It’s fully ecommerce (Woocommerce) ready with all the tools you need to design an awesome online store. The versatile design is perfect for any kind of business, online store, portfolio or personal site. We built Virtue with a powerful options panel where you can set things like your home layout, sliders, custom fonts, and completely customize your look without writing any CSS. You are going to love how easy this theme is to work with. Virtue was built and designed by Kadence Themes.
Version: 3.2.1
Author: Kadence Themes
Author URI: *Login to see link
Tags: flexible-width, two-columns, one-column, custom-colors, custom-header, custom-menu, featured-images, translation-ready, theme-options, photoblogging
Text Domain: virtue

License: GPL
License URI: *Login to see link
*/
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Please advise ASAP. Thanks in advance for your assistance.