body {
    font-family: Arial, sans-serif;
    margin: 0;
    background: #f9f9f9;
    color: #000;
    min-height: 100vh;
}
h1, h2 {
    text-align: center;
    margin-top: 40px;
}
ul {
    list-style: none;
    padding: 0;
    max-width: 600px;
    margin: 20px auto;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    padding: 20px;
}
li {
    margin: 10px 0;
}
a {
    margin-left: 10px;
    text-decoration: none;
    color: #2563eb;
}
a:hover {
    text-decoration: underline;
}