body {
    font-family: Arial, sans-serif;
    background-color: #222; 
    color: #f0f0f0;
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    text-align: center;
}

.container {
    max-width: 600px;
    padding: 30px;
    background-color: #333;
    border: 1px solid #00aaff;
    border-radius: 5px;
}

header h1 {
    font-size: 2.5em;
    color: #00aaff;
    margin-bottom: 20px;
}
main p {
    font-size: 1.1em;
    line-height: 1.5;
    margin-bottom: 15px;
}

footer {
    margin-top: 30px;
    font-size: 0.8em;
    color: #999;
}