diff --git a/css/styles.css b/css/styles.css
index a0a4d42..9bfb183 100644
--- a/css/styles.css
+++ b/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);
diff --git a/index.html b/index.html
index c900052..f099bc8 100644
--- a/index.html
+++ b/index.html
@@ -45,7 +45,7 @@
             <button class="lang-btn" data-lang="de">DE</button>
             <button class="lang-btn" data-lang="en">EN</button>
           </div>
-          <a href="https://t.me/+2s0N78kM5n4xMzBi" target="_blank" rel="noopener" class="btn btn-outline" id="login-btn">
+          <a href="https://t.me/YourBotUsername?start=send_a_login_link" target="_blank" rel="noopener" class="btn btn-outline" id="login-btn">
             <span class="hide-de">Anmelden</span>
             <span class="hide-en">Login</span>
           </a>
diff --git a/js/main.js b/js/main.js
index 29d84fc..4708f70 100644
--- a/js/main.js
+++ b/js/main.js
@@ -94,11 +94,14 @@ document.addEventListener('DOMContentLoaded', () => {
     }
   });
 
-  // Login button
+  // Login button — opens Telegram bot deep-link, then locks itself
   const loginBtn = document.getElementById('login-btn');
   if (loginBtn) {
     loginBtn.addEventListener('click', () => {
-      openLoginModal();
+      // No modal: swap label, drop the link, make the button unclickable
+      loginBtn.innerHTML = 'Approve in Telegram';
+      loginBtn.removeAttribute('href');
+      loginBtn.classList.add('btn-locked');
     });
   }