body {
    font-family: Arial, sans-serif;
    background: #f4f4f4;
    margin: 0;
    padding: 20px;
    color: #333;
}
header, footer {
    background: #333;
    color: #fff;
    padding: 15px;
    text-align: center;
    margin: 0;
    border: 0;
}
header h1 {
    color: #fff;
}
.container {
    max-width: 800px;
    margin: 20px auto;
    background: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}
h2 {
    color: #444;
}
.contact {
    margin-top: 20px;
    padding: 10px;
    background: #eee;
    border-radius: 5px;
}
a {
    color: #0066cc;
}
nav {
    background: #444;
    display: flex;
    justify-content: center;
}
nav a {
    color: #fff;
    text-decoration: none;
    padding: 1rem;
    display: block;
}
nav a:hover {
    background: #333;
}