body {
    font-family: Arial, Helvetica, sans-serif;
    background-color: #f4f6f8;
    margin: 0;
    padding: 0;
    text-align: center;
}

h1 {
    margin-top: 60px;
    font-size: 3rem;
    color: #222;
}

nav {
    margin-top: 40px;
}

nav ul {
    list-style: none;
    padding: 0;
}

nav li {
    margin: 15px 0;
}

nav a {
    text-decoration: none;
    font-size: 1.2rem;
    color: #0077cc;
    padding: 10px 20px;
    border-radius: 6px;
    transition: background 0.2s, color 0.2s;
}

nav a:hover {
    background-color: #0077cc;
    color: white;
}

p {
    margin-top: 20px;
    color: #555;
}

a.back {
    display: inline-block;
    margin-top: 30px;
    text-decoration: none;
    color: #0077cc;
}