Portal-Login: E-Mail-Code für Mitarbeiter mit 2FA

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

public/login.css

@@ -647,3 +647,18 @@
     }
   }
 }
+
+/* Mitarbeiter-2FA: Code-Schritt */
+#mfa-form.hidden { display: none; }
+.mfa-hint { margin: 0 0 4px; text-align: center; }
+#mfa-code { letter-spacing: 0.3em; font-variant-numeric: tabular-nums; }
+.mfa-actions { margin-top: 12px; }
+.mfa-link {
+  background: none;
+  border: 0;
+  padding: 0;
+  font: inherit;
+  color: inherit;
+  text-decoration: underline;
+  cursor: pointer;
+}