@media (max-width: 600px) {
  .col-12 {
  margin-bottom: 1.5rem;
      }
    }

.form-control,
.form-check {
      width: 100%;
    }
@media (max-width: 600px) {
  .col-12 {
  margin-bottom: 1.5rem;
 }
}

.form-control,
.form-check {
   width: 100%;
}
.form-floating > .form-control,
.form-floating > .form-control:focus {
  height: calc(3.5rem + 2px);
}

.form-floating > textarea.form-control {
  height: auto;
}

.form-group { margin-bottom: 15px; }
label { display: block; margin-bottom: 5px; }
input, textarea { width: 100%; padding: 8px; }
textarea#nachricht.form-control { height: 150px; } /* Größeres Nachrichtenfeld */
.honeypot { display: none; } /* Honeypot-Feld verstecken */
.error { color: red; }