body {
    font-family: Arial, sans-serif;
    background-color: #fff;
    display: flex;
    flex-direction: column;
    margin: 0;
    padding: 0;
    
}
.container {
    width: 100%;
    height: 100%;
    max-width: 600px;
    padding: 20px;
    background-color: #fff;
    box-shadow: 0 0 10px #fff;
    border-radius: 8px;
    text-align: center;
    margin-top: 20px;
    position: sticky;
}
form {
    display: flex;
    flex-direction: column;
}
.logo {
    max-width: 100%;
    margin-bottom: 20px;
    margin-top: 10px;
}
label {
    margin-left: 7%;
    margin-bottom: 10px;
    font-weight: bold;
}
input[type="text"],
input[type="password"] {
    padding: 10px;
    margin-bottom: 20px;
    border: 1px solid #fff;
    border-radius: 4px;
    margin-left: 7%;
    margin-right: 7%;
}
input[type="submit"] {
    padding: 10px;
    background-color: #007bff;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    margin-left: 30%;
    margin-right: 30%;
}
input[type="submit"]:hover {
    background-color: #0056b3;
}
.hidden {
    display: none;
}
.offscreen {
    position: absolute;
    left: -9999px;
}
.scan-image ,
.scan1-image {
    cursor: pointer;
    max-width: 100%;
    margin: 20px auto;
}
@media (max-width: 768px) {
    .container {
        width: 95%;
        padding: 15px;
    }

    input[type="text"],
    input[type="password"] {
        margin-left: 5%;
        margin-right: 5%;
    }

    input[type="submit"] {
        margin-left: 20%;
        margin-right: 20%;
    }
}
@media (max-width: 480px) {
    .container {
        width: 100%;
        padding: 10px;
    }

    input[type="text"],
    input[type="password"] {
        margin-left: 2%;
        margin-right: 2%;
    }

    input[type="submit"] {
        margin-left: 10%;
        margin-right: 10%;
        margin-top: 10%;
    }
}