body {
    background-color: #f9f9f9;
}
/* Header Styling */
.navbar {
    background: linear-gradient(90deg, #007bff, #0056b3);
    padding: 15px;
}
.navbar-brand {
    font-weight: bold;
    font-size: 22px;
    color: white !important;
}
.container {
    max-width: 600px;
    margin-top: 50px;
}
.qr-box {
    display: none;
    text-align: center;
    margin-top: 20px;
    padding: 15px;
    background: white;
    border-radius: 10px;
    box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.2);
}
/* Footer Styling */
.footer {
    background-color: #007bff;
    color: white;
    padding: 15px 0;
    text-align: center;
    margin-top: 50px;
}
.footer p {
    margin-bottom: 0;
}