/* Core 9UY Utility Background */
body {
    background-color: #0a0a0a;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 30px 30px;
}

/* Scanline Effect */
.scanline {
    position: fixed;
    inset: 0;
    background: linear-gradient(to bottom, rgba(255, 255, 255, 0) 50%, rgba(0, 0, 0, 0.15) 50%);
    background-size: 100% 4px;
    pointer-events: none;
    z-index: 50;
    opacity: 0.2;
}

/* QR Code Display specifics */
#qrcode img {
    margin: 0 auto;
    display: block;
    /* Prevent blurry anti-aliasing on rendering if small */
    image-rendering: optimizeQuality;
}

/* Initial empty state styling */
#qr-wrapper.empty {
    opacity: 0.3;
    filter: grayscale(1);
    transform: scale(0.98);
}