WPML & CSS

[TDT]

Hi guys. I need some help with a wpml issue, it's driving me crazy. I have a website that it's translated into 5 languages and I need to load different style.css files for 2 of those languages. The other can keep using the main style.css. The problem is I don't know how to do that, and what I found online doesn't seem to work or I'm not doing it properly.

From what I understand, there are 2 ways to do this, either via modifying header.php or the theme's functions.php (I would rather use this one). I've created the different css files and named them style-it.css and style-de.css, but I cannot figure out what to add to the functions file...

 

Here's how the styles and scripts section looks on my functions.php file:

Start load theme CSS and scripts
*/
function load_theme_styles() { 
	wp_register_style( 'style', get_template_directory_uri() . '/css/style.css', null, null, 'all' );
	wp_enqueue_style( 'style' );
	wp_register_style( 'jquery-fancybox', get_template_directory_uri() . '/js/libs/fancybox/jquery.fancybox-1.3.4.css"', null, null, 'all' );
	wp_enqueue_style( 'jquery-fancybox' );
}

function load_theme_scripts() {
	wp_enqueue_script( 'modernizr', get_template_directory_uri() .'/js/libs/modernizr-1.7.min.js', false, null, false );
	wp_deregister_script( 'jquery' );
	$url = 'https://ajax.googleapis.com/ajax/libs/jquery/1.5.1/jquery.min.js'; // the URL to check against
	$test_url = @fopen( $url,'r' ); // test parameters
	if(  $test_url != null ) {
		wp_register_script( 'jquery', 'https://ajax.googleapis.com/ajax/libs/jquery/1.5.1/jquery.min.js', false, '1.5.1', false );
	} else {
		wp_register_script( 'jquery', get_template_directory_uri() .'/js/libs/jquery-1.5.1.min.js', __FILE__, false, '1.5.1', false );
	}
    wp_enqueue_script( 'jquery' );
    wp_enqueue_script( 'jquery-color' );
    wp_enqueue_script( 'jquery-cycle', get_template_directory_uri() .'/js/libs/jquery.cycle.min.js', array( 'jquery' ), null, true );
    
    wp_enqueue_script( 'jquery-mousewheel', get_template_directory_uri() .'/js/libs/fancybox/jquery.mousewheel-3.0.4.pack.js', array( 'jquery' ), null, true );
    wp_enqueue_script( 'jquery-fancybox', get_template_directory_uri() .'/js/libs/fancybox/jquery.fancybox-1.3.4.pack.js', array( 'jquery' ), null, true );
	wp_enqueue_script( 'jquery-quote_rotator', get_template_directory_uri() .'/js/libs/jquery.quote_rotator.js',  array( 'jquery' ) , null, true );
	wp_enqueue_script( 'script', get_template_directory_uri() .'/js/script.js', array( 'jquery' ), null, true );
}

add_action( 'wp_enqueue_scripts', 'load_theme_styles' );
add_action( 'wp_enqueue_scripts', 'load_theme_scripts' );
/*
End load theme CSS and scripts

Any help would be much appreciated. Thank you!