/* Alles ausblenden */
body > * {
  display: none !important;
}

/* Vollbild-Hinweis anzeigen */
html, body {
  height: 100%;
  margin: 0;
}

body::before {
  content: "Mobile-Version bald verfügbar!";
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;

  width: 100%;
  height: 100dvh;

  font-family: Arial, sans-serif;
  font-size: clamp(18px, 6vw, 36px);
  line-height: 1.4;
  color: #fff;

  background: #333; /* dunkler Hintergrund */
  padding: 2rem;
}