diff --git a/docs/index.html b/docs/index.html
index 8d882c2..15dfb1d 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -328,6 +328,21 @@ <h3>100% Free</h3>
           <h3>Privacy-First</h3>
           <p>No accounts, no API keys, no analytics. Translation cache and chat history stay on your device. See our privacy policy for details on third-party services used.</p>
         </div>
+        <div class="feature-card">
+          <div class="feature-icon">🎓</div>
+          <h3>Exam Mode</h3>
+          <p>Auto-detects certification exams. Answer choices stay untranslated for academic integrity. AI Tutor switches to exam-safe mode.</p>
+        </div>
+        <div class="feature-card">
+          <div class="feature-icon">⌨️</div>
+          <h3>Keyboard Shortcuts</h3>
+          <p>Ctrl+Shift+S (tutor), Ctrl+Shift+L (dark mode), Ctrl+Shift+/ (help), Escape (close), / (focus chat).</p>
+        </div>
+        <div class="feature-card">
+          <div class="feature-icon">🦊</div>
+          <h3>Cross-Browser</h3>
+          <p>Works on Chrome, Firefox, Edge, Brave, Arc, and other Chromium browsers. Firefox build via npm run build:firefox.</p>
+        </div>
       </div>
     </div>
   </section>