body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #1b1b1b;
    color: #f0f0f0;
}

header {
    text-align: center;
    padding: 2rem;
    background: #2c3e50;
}

header h1 {
    margin: 0;
    font-size: 2.5rem;
    color: #f39c12;
}

nav ul {
    display: flex;
    justify-content: center;
    list-style: none;
    background: #34495e;
    margin: 0;
    padding: 0;
}

nav li {
    margin: 0 1rem;
}

nav a {
    color: #ecf0f1;
    text-decoration: none;
    padding: 1rem 0;
    display: block;
}

nav a:hover {
    color: #f39c12;
}

section {
    padding: 2rem;
    max-width: 800px;
    margin: auto;
}

footer {
    text-align: center;
    padding: 1rem;
    background: #34495e;
}