body {
    font-family: Arial, sans-serif;
    text-align: center;
    background-color: #000000;
    color: #ffffff;
    padding: 50px;
}
.container {
    max-width: 600px;
    margin: auto;
    padding: 40px;
    background: #ffffff;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}
h1 {
    font-size: 48px;
    color: #000000;
}
p {
    font-size: 18px;
    margin: 20px 0;
    color: #000000;
}
a {
    display: inline-block;
    padding: 10px 20px;
    margin-top: 20px;
    text-decoration: none;
    color: #ffffff;
    background-color: #000;
    border: 2px solid #000;
    border-radius: 5px;
    transition: background 0.2s, color 0.2s;
}
a:hover {
    color: #000;
    background-color: #ffffff;
    border: 2px solid #000;
}
.logo {
    display: block;
    margin: 0 auto 20px auto;
    width: 200px;
}