body {
    background-color: #fcfcfc;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
}

.container {
    max-width: 600px;
    margin: auto;
    background-color: #fff;
    padding: 14px;
    width: 100%;
    border-radius: 14px;
    font-family: Arial, sans-serif;
    color: #333;
    padding: 20px;
    font-size: 18px;
    text-align: center;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

.hidden {
    display: none;
}