<form action="/submit" method="post" enctype="multipart/form-data">
    <fieldset>
        <legend>Contact Information</legend>
        <label for="name">Full Name:</label>
        <input type="text" id="name" name="name" required pattern="[A-Za-z ]+">
        
        <label for="email">Email:</label>
        <input type="email" id="email" name="email" required>
    </fieldset>
    
    <fieldset>
        <legend>Preferences</legend>
        <input type="checkbox" id="newsletter" name="newsletter" checked>
        <label for="newsletter">Subscribe to newsletter</label>
        
        <input type="radio" id="beginner" name="level" value="beginner">
        <label for="beginner">Beginner</label>
        <input type="radio" id="advanced" name="level" value="advanced" checked>
        <label for="advanced">Advanced</label>
    </fieldset>
    
    <label for="message">Message:</label>
    <textarea id="message" name="message" rows="4" maxlength="500"></textarea>
    
    <button type="submit">Send Magic Message</button>
</form>