#scannerOverlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.85); /* oscurato */
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

#scannerBox {
    position: relative;
    width: 300px;
    height: 220px;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 0 20px #000;
}

#preview {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Linea animata stile scanner */
.scan-line {
    position: absolute;
    width: 100%;
    height: 2px;
    background: red;
    top: 0;
    animation: scan 2s infinite;
}

@keyframes scan {
    0% {
        top: 0;
    }

    100% {
        top: 100%;
    }
}

/* Bottone chiusura */
#scannerBox button {
    position: absolute;
    top: 5px;
    right: 5px;
    background: white;
    border: none;
    border-radius: 50%;
    width: 30px;
    height: 30px;
    cursor: pointer;
}