Update templates/index.html

templates/index.html

@@ -93,10 +93,14 @@
     <br />
     <button type="submit" id="summarize-btn">Summarize</button>
   </form>
-  
-  <div id="error-box" style="display:none; background:#ffe0e0; color:#a00; padding:10px; border-radius:5px; margin-top:10px;"></div>
 
+  <!-- Loader Spinner -->
+  <div id="loader"></div>
+
+  <!-- Error Message -->
+  <div id="error-box" style="display:none; background:#ffe0e0; color:#a00; padding:10px; border-radius:5px; margin-top:10px;"></div>
 
+  <!-- Summary Output -->
   <div id="summary" class="summary-container" style="display:none;">
     <button id="copy-btn">Copy</button>
     <h2>Summary:</h2>