/* Classe per nascondere elementi visivamente ma mantenerli accessibili per screen reader */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* Fix contrasto colori per pulsanti success - rapporto minimo 4.5:1 */
.btn-success,
.btn-success:hover,
.btn-success:focus,
.btn-success:active {
    background-color: #2d7a2d !important;
    border-color: #2d7a2d !important;
    color: #ffffff !important;
}

/* Fix contrasto colori per pulsanti danger - rapporto minimo 4.5:1 */
.btn-danger,
.btn-danger:hover,
.btn-danger:focus,
.btn-danger:active {
    background-color: #c9302c !important;
    border-color: #c9302c !important;
    color: #ffffff !important;
}

/* Fix contrasto colori per pulsanti info - rapporto minimo 4.5:1 */
.btn-info,
.btn-info:hover,
.btn-info:focus,
.btn-info:active {
    background-color: #31b0d5 !important;
    border-color: #31b0d5 !important;
    color: #ffffff !important;
}