.loading-body {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.2);
    z-index: 500;
  }
  
  .loading-spinner {
    position: absolute;
    top: calc(50% - 70px); /* Wycentrowane 70px wyżej względem środka ekranu */
    left: 50%;
    transform: translate(-50%, -50%);
    border: 8px solid #f3f3f3;
    border-top: 8px solid #aaa;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    animation: spin 1s linear infinite;
  }
  
  @keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
  }