<IfModule mod_rewrite.c>
RewriteEngine on
# For sales:
RewriteRule ^shop/sales/?$ sales.php
# For the primary categories:
RewriteRule ^shop/([A-Za-z\+]+)/?$ shop.php?type=$1
# For specific products:
RewriteRule ^browse/([A-Za-z\+\-]+)/([A-Za-z\+\-]+)/([0-9]+)$ browse.php?type=$1&category=$2&id=$3
# For HTTPS pages:
RewriteCond %{HTTPS} off
RewriteRule ^(checkout\.php|billing\.php|final\.php|admin/(.*))$ https://%{HTTP_HOST}/$1 [R=301,L]
</IfModule>