footer {
    background-color: #111;
    color: white;
    text-align: center;
    padding: 15px 10px;
    font-size: 14px;
    font-family: sans-serif;
    position: fixed;
    bottom: 0;
    width: 100%;
    z-index: 1000;
    box-shadow: 0 -2px 5px rgba(0, 0, 0, 0.2);
    display: none; /* 🔒 Alapból rejtve */
  }
  footer strong {
    font-weight: bold;
  }