Wechsel Ticketsystem → Projekt-Admin per Einmal-Link, Rückweg-Button

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

public/login.css

@@ -265,6 +265,13 @@
     border-color 0.25s var(--ease-out);
 }
 
+a.portal-btn-outline {
+  display: inline-flex;
+  align-items: center;
+  line-height: normal;
+  text-decoration: none;
+}
+
 .portal-btn-outline:hover {
   background: #fff;
   color: #1c1c1c;