html, body {
  margin: 0;
  width: 100%;
  height: 100%;
  font-family: sans-serif;
}

/* Vollbild-Hintergrund */
#blur-content {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;

  background-image: url("kreishaus.png");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;

  transition: filter 0.3s ease;
  z-index: 1;
}

/* Blur bei aktivem Modal */
#blur-content.blurred {
  filter: blur(5px);
}

/* Modal Overlay */
#warning-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
}

/* Modal Inhalt */
.modal-content {
  background: white;
  padding: 20px 30px;
  border-radius: 10px;
  text-align: center;
}

/* Versteckt */
.hidden {
  display: none;
}