/* Popup Hintergrund */
.popup {
  display: none;
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0,0,0,0.5);
  z-index: 9999;
}

/* Popup Box */
.popup-content {
  background: #fff;
  width: 400px;
  margin: 100px auto;
  padding: 20px;
  border-radius: 8px;
  position: relative;
  box-shadow: 0 5px 20px rgba(0,0,0,0.3);
}

/* Schließen (X) */
.popup-close {
  position: absolute;
  top: 10px; right: 15px;
  font-size: 24px;
  font-weight: bold;
  color: #000;
  cursor: pointer;
}