Proof-of-Pass Receipt

diff --git a/js/components/__tests__/sidebar.test.js b/js/components/__tests__/sidebar.test.js
new file mode 100644
index 0000000000000000000000000000000000000000..843eacb92570ac159b498cf29c011f60a070bde9
--- /dev/null
+++ b/js/components/__tests__/sidebar.test.js
@@ -0,0 +1,36 @@
+import { describe, expect, it, vi } from 'vitest';
+import { SidebarComponent } from '../sidebar.js';
+
+vi.mock('../../services/storage.js', () => ({
+  storage: {
+    getCourseProgress: vi.fn(() => ({
+      completedLessons: ['lesson-1', 'lesson-2'],
+      completedModules: [],
+    })),
+  },
+}));
+
+describe('SidebarComponent', () => {
+  it('uses loaded lesson count for progress', () => {
+    const container = {
+      innerHTML: '',
+      querySelectorAll: vi.fn(() => []),
+    };
+    const course = {
+      id: 'course-1',
+      title: 'Course 1',
+      totalLessons: 1,
+    };
+    const lessons = [
+      { id: 'lesson-1', title: 'Lesson 1', type: 'theory' },
+      { id: 'lesson-2', title: 'Lesson 2', type: 'practice' },
+    ];
+
+    new SidebarComponent(container, course, lessons, 'lesson-1');
+
+    expect(container.innerHTML).toContain('<span>2/2 lessons</span>');
+    expect(container.innerHTML).toContain('<span>100%</span>');
+    expect(container.innerHTML).toContain('style="width:100%"');
+    expect(course.totalLessons).toBe(1);
+  });
+});
diff --git a/js/components/sidebar.js b/js/components/sidebar.js
index fd226ee94885163676901f944cfadf14d156120e..f82f53300fa0b341cd8bc5fe7ca19b25fe6a3d49 100644
--- a/js/components/sidebar.js
+++ b/js/components/sidebar.js
@@ -33,7 +33,7 @@ export class SidebarComponent {
     render() {
         const courseProgress = storage.getCourseProgress(this.course.id);
         const completedCount = courseProgress.completedLessons.length;
-        const totalLessons = this.course.totalLessons;
+        const totalLessons = this.lessons.length;
         const percent = Math.round((completedCount / totalLessons) * 100);
 
         // build module + lesson list if modules provided