# Remove .php extension
<IfModule mod_rewrite.c>
    RewriteEngine On
    RewriteBase /
    
    # Remove .php extension from URLs
    RewriteCond %{REQUEST_FILENAME} !-f
    RewriteCond %{REQUEST_FILENAME} !-d
    RewriteRule ^([a-zA-Z0-9_-]+)/?$ $1.php [QSA,L]
    RewriteRule ^([a-zA-Z0-9_-]+)/([a-zA-Z0-9_-]+)/?$ $1/$2.php [QSA,L]
    
    # Prevent direct access to sensitive files
    <FilesMatch "\.(env|sql|json|lock)$">
        Order allow,deny
        Deny from all
    </FilesMatch>
</IfModule>

# Enable Gzip compression
<IfModule mod_deflate.c>
    AddOutputFilterByType DEFLATE text/html text/plain text/xml text/css text/javascript application/javascript application/json
</IfModule>

# Browser caching
<IfModule mod_expires.c>
    ExpiresActive On
    ExpiresByType image/jpeg "access plus 1 month"
    ExpiresByType image/png "access plus 1 month"
    ExpiresByType image/webp "access plus 1 month"
    ExpiresByType text/css "access plus 1 week"
    ExpiresByType application/javascript "access plus 1 week"
    ExpiresByType application/json "access plus 1 day"
    ExpiresDefault "access plus 2 days"
</IfModule>

# Security headers
<IfModule mod_headers.c>
    Header set X-Content-Type-Options "nosniff"
    Header set X-Frame-Options "SAMEORIGIN"
    Header set X-XSS-Protection "1; mode=block"
    Header set Referrer-Policy "strict-origin-when-cross-origin"
</IfModule>
