body {
    font-family: Arial, sans-serif;
    background: #f4f6f9;
    padding: 20px;
    text-align: center;
}

button {
    padding: 10px 20px;
    background: #007bff;
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 16px;
}

    button:hover {
        background: #0056b3;
    }

#txtBarcode {
    margin-top: 15px;
    padding: 10px;
    width: 250px;
    font-size: 16px;
    text-align: center;
}

/* Scanner Box */
#scannerBox {
    display: none;
    margin: 20px auto;
    width: 260px;
    height: 160px;
    position: relative;
    border-radius: 10px;
    overflow: hidden;
    background: black;
}

/* Video */
#video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Frame */
.scan-frame {
    position: absolute;
    inset: 10px;
    border: 2px solid #00ff99;
    border-radius: 6px;
}

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

@keyframes scan {
    0% {
        top: 10px;
    }

    100% {
        top: 150px;
    }
}

/* Result box */
#result {
    /*display: none;*/
    margin-top: 20px;
    padding: 15px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0,0,0,.1);
    text-align: left;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}