body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #0d0d0d;
    color: white;
}

header {
    background: #111;
    padding: 20px;
    text-align: center;
}

nav a {
    margin: 0 15px;
    color: #00eaff;
    text-decoration: none;
}

.hero {
    text-align: center;
    padding: 100px 20px;
    background: url('https://images.unsplash.com/photo-1444703686981-a3abbc4d4fe3') center/cover;
}

.content {
    padding: 40px;
}

footer {
    text-align: center;
    padding: 20px;
    background: #111;
    margin-top: 40px;
}