.barcode-guide-overlay {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.barcode-guide-frame {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 80%;
    height: 180px;
    transform: translate(-50%, -50%);
    border: 4px solid rgba(255, 255, 255, 0.85);
    border-radius: 1rem;
    box-shadow: 0 0 0 9999px rgba(0, 0, 0, 0.45);
}

.barcode-guide-line {
    position: absolute;
    left: 10%;
    right: 10%;
    top: 50%;
    height: 3px;
    background: rgba(255, 255, 255, 0.9);
    animation: barcode-guide-move 2s infinite linear;
}

@keyframes barcode-guide-move {
    0% {
        transform: translateY(-90px);
    }

    50% {
        transform: translateY(90px);
    }

    100% {
        transform: translateY(-90px);
    }
}

@media (prefers-reduced-motion: reduce) {
    .barcode-guide-line {
        animation: none;
    }
}