Hide "wordpress/" with .htaccess

Hi! I have my WordPress installed in a subfolder. I don’t want to migrate it because if I change my permalinks I will lose all my social shares data.

I’m trying to rewrite the urls with .htaccess. I managed to change all the urls of the website with the following .htaccess (now if you go to “site.com/wordpress/post” it shows “site.com/post”:

Options +FollowSymLinks -MultiViews
   # Turn mod_rewrite on
   RewriteEngine On
   RewriteBase /

    RewriteCond %{THE_REQUEST} ^[A-Z]{3,}\s/+wordpress/([^\s]*) [NC]
    RewriteRule ^ %1 [R=301,L]

   RewriteCond %{REQUEST_FILENAME} !-f
   RewriteRule (?!^wordpress/)^(.*)$ /wordpress/$1 [L,NC]

But it doesn’t work with the homepage. It still shows as “site.com/wordpress”. Why is that? What should I add / change? Thanks!