body {
    font-family: Arial, sans-serif;
    margin: 0;
    background: #f2f2f2;
}

header {
    background: #111;
    color: white;
    padding: 15px;
    text-align: center;
}

.logo {
    height: 60px;
    display: block;
    margin: 0 auto 10px auto;
}

nav {
    margin-top: 10px;
}

nav a {
    color: white;
    margin: 0 10px;
    text-decoration: none;
    font-weight: bold;
}

nav a:hover {
    color: gold;
}

main {
    padding: 20px;
    background: white;
    margin: 20px;
    border-radius: 10px;
}

footer {
    text-align: center;
    padding: 15px;
    background: #111;
    color: white;
    margin-top: 20px;
}