.filename-head {
    display: flex;
    width: 90%;
    height: 22px;
    align-items: center;
    justify-content: center;
    margin: 3px 0px;
    font-weight: 500;
    color: #888888;
  }
  
  .tooltip-container {
    position: relative;
    display: inline-block;
    max-width: 100%;
    height:22px;
  }
  
  .filename-text {
    display: inline-block;
    max-width: 100%;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    cursor: pointer;
  }
  
  .custom-tooltip {
    visibility: hidden;
    background-color: #333;
    color: #fff;
    font-size: 0.85em;
    padding: 4px 8px;
    border-radius: 4px;
    position: absolute;
    bottom: 125%; /* position above */
    left: 50%;
    transform: translateX(-50%);
    white-space: normal;
    z-index: 10;
    opacity: 0;
    transition: opacity 0.2s;
    min-width: 150px;
    max-width: 300px;
    word-break: break-word;
    text-align: center;
  }
  
  /* Arrow */
  .custom-tooltip::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    margin-left: -5px;
    border-width: 5px;
    border-style: solid;
    border-color: #333 transparent transparent transparent;
  }
  
  /* Show on hover */
  .tooltip-container:hover .custom-tooltip {
    visibility: visible;
    opacity: 1;
  }