s.forEach(el => {
                      el.classList.forEach(cls => classesUsed.add(cls));
                    });

                    document.getElementById("css-debug").innerHTML =
                      `<div>Total unique classes: ${classesUsed.size}</div>
                       <div class="mt-1"><strong>Classes:</strong> ${Array.from(classesUsed).join(', ')}</div>`;
                  });
                </script>
              </div>
            </div>
          </div>
        </details>
      </div>

