body {
    font-family: Arial, sans-serif;
    margin: 0;
    background-color: #111;
    color: white;
}

nav {
    background-color: #222;
    padding: 15px;
    text-align: center;
}

nav a {
    color: white;
    margin: 0 15px;
    text-decoration: none;
    font-weight: bold;
}

nav a:hover {
    color: #00ffcc;
}

.container {
    padding: 30px;
    text-align: center;
}

h1 {
    color: #00ffcc;
}

button {
    padding: 10px 20px;
    background-color: #00ffcc;
    border: none;
    cursor: pointer;
}

button:hover {
    background-color: #00ccaa;
}