  <div class="challenge-number">1</div>
                        <h6>Basic Routing</h6>
                        <p class="small text-muted">Setup Fiber, routes, and handlers</p>
                        <div class="difficulty beginner">Beginner</div>
                    </div>
                </div>
                
                <div class="col-md-6 col-lg-3">
                    <div class="challenge-card">
                        <div class="challenge-number">2</div>
                        <h6>Middlewar