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

.container {
    text-align: center;
    padding: 20px;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

.otp-container {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 15px;
}

.otp-field {
    width: 40px;
    height: 40px;
    text-align: center;
    font-size: 24px;
    border: 1px solid #ddd;
    border-radius: 4px;
    outline: none;
    transition: border-color 0.2s;
}

.otp-field:focus {
    border-color: #007bff;
}

button {
    padding: 10px 20px;
    font-size: 16px;
    color: #fff;
    background-color: #007bff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

button:hover {
    background-color: #0056b3;
}

.hidden {
    display: none;
}

#errorMessage {
    color: #dc3545;
    margin-top: 15px;
    font-size: 16px;
}

#result {
    margin-top: 20px;
}

#qrCode {
    max-width: 100%;
    height: auto;
    margin-bottom: 15px; /* Adds space between QR code and the download button */
}

#fileContainer {
    margin-top: 10px; /* Adds space above the download button */
}

#fileLink {
    display: inline-block;
    padding: 10px 20px;
    font-size: 16px;
    color: #fff;
    background-color: #28a745;
    border: none;
    border-radius: 4px;
    text-decoration: none;
    cursor: pointer;
}

#fileLink:hover {
    background-color: #218838;
}