Change front-page layout after x amount of posts ( while in the same loop)
I'm trying to change the layout of my front-page after x amount of posts, then returning to the original layout as shown in the image below.
?php
$paged = ( get_query_var( 'paged' ) ) ? get_query_var( 'paged' ) : 1;
$query = new WP_Query( 
    array(
        'posts_per_page' = 7,
        'paged' = $paged
    ) 
);
if ( $query-have_posts() ) : ?    
    div // container 1
        div //container 2
        ?php   
            $count = 1;
            while ( $query-have_posts() ) : $query-the_post(); 
        ?
            ?php echo the_post_thumbnail(); ?
            ?php echo get_the_title(); ?
        ?php if ( 3 === $count) { ?
        /div // close container 2
    /div // close container 1
        ?php }  ?
    ?php if ( 4 = $count) { ?
        // put new layout here 
    ?php } ?
    ?php if ( 6 = $count) { ?
        // return to original layout
    ?php } 
    $count++; 
    endwhile; 
endif; ?
This is a simplification of the code I currently have. Hope this question is easy to understand!
the dark grey represents new sections
Topic screen-layout loop Wordpress
Category Web
