.input-disabled{
      background-color:#EBEBE4;
      border:1px solid #ABADB3;
      padding:2px 1px;
    }
  
  .evidenziato {
      background-color: #ffffcc;
      border: 2px solid red;
    }
  
    .evidenziato_border {
      border: 2px solid red;
    }

    .evidenziato_border_blu {
      border: 2px solid blue;
    }    

    .select2-selection.is-invalid,
    .select2-selection.is-invalid:focus {
    border-color: #dc3545 !important;                      /* bordo rosso */
    box-shadow: 0 0 0 0.25rem rgba(220,53,69,.25);         /* alone */
    background-color: transparent !important;              /* niente sfondo rosso */
    background-repeat: no-repeat;
    background-position: right .75rem center;              /* stessa posizione degli input */
    background-size: 1rem 1rem;                            /* icona 16×16 */
    /* icona exclamation-circle-fill di Bootstrap 5 */
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12' width='12' height='12' fill='none' stroke='%23dc3545'%3e%3ccircle cx='6' cy='6' r='4.5'/%3e%3cpath stroke-linejoin='round' d='M5.8 3.6h.4L6 6.5z'/%3e%3ccircle cx='6' cy='8.2' r='.6' fill='%23dc3545' stroke='none'/%3e%3c/svg%3e");    
    padding-right: 2rem;                                   /* spazio icona */
    }