<IfModule mod_rewrite.c>
RewriteEngine On

RewriteCond %{REQUEST_FILENAME} -f [OR]
RewriteCond %{REQUEST_FILENAME} -d
RewriteRule ^ - [L]

RewriteRule ^courses/?$ index.php [L,QSA]

RewriteRule ^course/([a-z0-9\-]+)/?$ course.php?slug=$1 [L,QSA]

RewriteRule ^learn/([a-z0-9\-]+)/([a-z0-9\-]+)/?$ learn.php?course=$1&chapter=$2 [L,QSA]
RewriteRule ^learn/([a-z0-9\-]+)/?$ learn.php?course=$1 [L,QSA]
</IfModule>
