Query string rewriting using .htaccess - .htaccess

Question

i am trying to rewrite a URL for SEO purpose.
The old URL is:
http://www.domain.net/index.php?p=beer
The new URL should be:
http://www.domain.net/beer
My Code in the .htaccess is:
RewriteRule ^([^/\.]+)/?$ index.php?p=$1
Even after hours of research, i have no clue why this is not working :(
Here is the complete .htaccess:
RewriteEngine on
RewriteCond %{HTTP_USER_AGENT} Teoma
RewriteRule ^.* - [F]
rewritecond %{HTTP_HOST} !^www\.domain\.net$ [NC]
rewriterule ^(.*)$ http://www\.domain\.net/$1 [R=301,L]
RewriteCond %{QUERY_STRING} ^p=uppic$
RewriteRule ^index\.php$ /? [L,R=301]
RewriteRule ^([^/\.]+)/?$ index.php?p=$1
# Pwd service
AuthType Basic
AuthName "Service"
AuthUserFile /xxxx/www/xxxxxx/xxxxx/xxxxxx/.htpasswd
<Files admin.php>
Require user xxxxxxx
</Files>
Options -Indexes
Thanks in advance!
My final question to this code is:
RewriteRule ^([^/\.]+)/?$ index.php?p=$1
Makes working :
http://www.domain.net/beer
and beer is refering to that page:
http://www.domain.net/index.php?p=beer
Which is great! But if i put a / behind beer, e.g.:
http://www.domain.net/beer/
my beer.php file runs at another path, so no css, images, js and so on is included. Any ideas how to fix that without changing the html to http://www.domain.net/style.css ...?

Answer 1

If you want to capture part of the query string, you must use a RewriteCond with QUERY_STRING
RewriteEngine On
RewriteCond %{QUERY_STRING} p=(.+)
RewriteRule ^/?index.php$ /%1? [R,L]
This redirects the client to the new URL http://www.domain.net/beer.

Answer 2

Have you tried this:?
^([^/\.]+)\/?$
Otherwise I would try the .htacces without the other stuff.
Just:
RewriteEngine On
RewriteBase /
RewriteRule ^([^/\.]+)\/?$ index.php?p=$1