<div style="font-family: Arial, sans-serif;">
<p>Welcome to <strong>{{site_name}}</strong>!</p>
<p>Thank you for registering. Your account has been created successfully.</p>
<h4>Your Account Details:</h4>
<ul>
<li><strong>Username:</strong> {{username}}</li>
<li><strong>Email:</strong> {{email}}</li>
</ul>
<p>You can now log in to your client area and start using our services.</p>
<p>If you have any questions, feel free to contact our support team.</p>
</div>