Enhance exam question fragment by exposing current question index for global listeners and updating question list state locally to reflect answered questions

physics/templates/physics/exam_take.html

@@ -298,6 +298,16 @@
                 requestAnimationFrame(function(){ el.style.opacity = '1'; });
         // hide after 1.6s
                 setTimeout(function(){ el.style.opacity = '0'; }, 1600);
+                        // Update the question list state locally so the menu reflects answered questions
+                try {
+                    var pos = (typeof window.currentQuestionPos === 'number') ? window.currentQuestionPos : (document.getElementById('question-number') ? parseInt(document.getElementById('question-number').textContent, 10) - 1 : NaN);
+                    if (!isNaN(pos)) {
+                        window.examQuestionAnswered = window.examQuestionAnswered || new Array({{ exam_length }}).fill(false);
+                        window.examQuestionAnswered[pos] = true;
+                        var btn = document.querySelector('#menu-list [data-qn="' + pos + '"]');
+                        if (btn) btn.classList.add('answered');
+                    }
+                } catch (e) { console && console.error && console.error(e); }
             } catch (e) { console && console.error && console.error(e); }
         });
     </script>

physics/templates/physics/exam_take_overview.html

@@ -97,7 +97,7 @@
 {% endblock %}
 
 {% block css %}
-<style>
+    <style>
     /* Overview page specific styles */
         .overview-text {
             margin-bottom: 1rem;
@@ -161,5 +161,5 @@
             }
             .overview-question-btn { font-size: .95rem }
         }
-</style>
+    </style>
 {% endblock %}

physics/templates/physics/partials/exam_take_fragment.html

@@ -86,6 +86,8 @@
             try {
                 var qnum = document.getElementById('question-number');
                 if (qnum) { qnum.textContent = '{{ pos|add:"1" }}'; }
+                // expose current question index for global listeners
+                window.currentQuestionPos = {{ pos }};
                 var qstem = document.getElementById('question-stem');
                 if (qstem) { qstem.innerHTML = '{{ question.stem|escapejs }}'; }
             } catch (err) {