/* =========================
   FOOTER (fixiert)
   ========================= */
footer {
  position: fixed; 
  bottom: 0; left: 0; right: 0;
  height: 50px;
  background-color: rgba(255,231,186, 0.7);
  color: rgb(0, 0, 139);
  display: flex; align-items: center; justify-content: center;
  padding: 10px;
  z-index: 1000;  
}