body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

header {
    background-color: #333;
    color: white;
    padding: 10px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

section {
    padding: 20px;
    text-align: center;
}

section#hero {
    background: #f4f4f4;
    padding: 50px 20px;
}

footer {
    text-align: center;
    padding: 10px;
    background: #333;
    color: white;
}