.collapsible-item input {
    position: absolute;
    opacity: 0;
    z-index: -1;
  }
  
  .collapsible-accordion {
    margin: 10px 0;
    border-radius: 0;
    overflow: hidden;
    box-shadow: 0 4px 4px -2px rgba(0, 0, 0, 0.5);
  }
  .collapsible-item-label {
    display: flex;
    justify-content: space-between;
    padding: 1em;
    font-weight: 800;
    cursor: pointer;
    background: #fff;
    border-top: 1px solid #e8e3e3;
    border-left: 1px solid #e8e3e3;
    border-right: 1px solid #e8e3e3;
    color: #d14124;
    border-radius: 0; 
  }
  .collapsible-item-label::after {
    content: "↪";
    width: 2em;
    height: 2em;
    text-align: center;
    transition: all 1s;
  }
  .collapsible-item-content {
    max-height: 0;
    padding: 0 1em;
    background: #fff;
    transition: all 1s;
    border-left: 1px solid #e8e3e3;
    border-right: 1px solid #e8e3e3;
  }
  
  .collapsible-item-content ul {
      margin: 0;
  }
  
  .collapsible-item input:checked + .collapsible-item-label::after {
    transform: rotate(90deg);
  }
  .collapsible-item input:checked ~ .collapsible-item-content {
    max-height: 100vh;
    padding: 1em;
  }

  #contenuto-terziario .immagini-social a,
  #contenuto-terziario .immagini-social a:link, 
  #contenuto-terziario .immagini-social a:hover, 
  #contenuto-terziario .immagini-social a:visited {
    border-bottom:0;
  }