Update static/index.css

static/index.css

@@ -14,6 +14,25 @@ body {
   background-image:url('https://cdn-uploads.huggingface.co/production/uploads/68c9040752743c0e389c6079/3Bwo1Og_FLJVaDbXqihW8.gif');
   background-size:cover;background-position:center;color:white ;  background-repeat: no-repeat; border-radius:10px;
 }
+/* Loading indicator */
+    .loading {
+      display: none;
+      position: fixed;
+      top: 50%;
+      left: 50%;
+      transform: translate(-50%, -50%);
+      color: white;
+      font-size: 18px;
+      z-index: 1000;
+    }
+    .spinner {
+      border: 3px solid rgba(255, 255, 255, 0.3);
+      border-top: 3px solid white;
+      border-radius: 50%;
+      width: 30px;
+      height: 30px;
+      animation: spin 1s linear infinite;
+      margin: 0 auto 10px;
 button-group {
       display: flex;
       gap: 12px;