#messageBar {
      position: fixed;
      bottom: 0;
      left: 0;
      width: 100%;
      padding: 12px 20px;
      color: white;
      font-weight: bold;
      text-align: center;
      z-index: 9999;
      transition: all 0.3s ease;
    }
    #messageBar.success {
      background-color: #28a745; /* Green */
    }
    #messageBar.error {
      background-color: #dc3545; /* Red */
    }
    #messageBar.warning {
      background-color: #ffc107; /* Yellow */
    }
    #messageBar.info {
      background-color: #17a2b8; /* Blue */
    }

#loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    }

    .loading-spinner {
    background: #fff;
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
    font-size: 1.2rem;
    box-shadow: 0 0 10px rgba(0,0,0,0.3);
    }
.message_for_user {font-size: larger; text-align: center; background-color: #eeeded; color: red; font-weight: bold; position: fixed; z-index: 1;}