/* Basic Reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Body Styling */
body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    color: #333;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100vh;
    margin: 0;
}

/* Header Styling */
header {
    background-color: #4CAF50;
    color: white;
    width: 100%;
    text-align: center;
    padding: 15px 0;
    margin-bottom: 20px;
}

/* Main Content Styling */
main {
    text-align: center;
    width: 90%;
    max-width: 600px;
    padding: 20px;
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

/* Video Element Styling */
video {
    border: 1px solid #ddd;
    border-radius: 4px;
}

/* Button Styling */
button {
    background-color: #4CAF50;
    color: white;
    border: none;
    padding: 10px 20px;
    margin: 10px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.3s ease;
}

button:hover {
    background-color: #45a049;
}

button:disabled {
    background-color: #ccc;
    cursor: not-allowed;
}

/* Result Text Styling */
#scan-result {
    margin-top: 20px;
    font-size: 18px;
    font-weight: bold;
    color: #333;
}

/* Responsive Design */
@media (max-width: 600px) {
    main {
        width: 100%;
        padding: 10px;
    }

    button {
        width: 100%;
        padding: 15px;
    }
}