Login button: open Telegram bot deep-link, no modal; label switches to 'Approve in Telegram' and locks

css/styles.css

@@ -577,6 +577,12 @@ body {
   color: #1c1e21;
   border: none;
 }
+/* Login button after Telegram was triggered — no longer clickable */
+.btn-locked {
+  opacity: 0.55;
+  cursor: default;
+  pointer-events: none;
+}
 .btn-outline:hover {
   background: #e4e6eb;
   transform: translateY(-1px);