body, html {
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
    scroll-behavior: smooth;
    background-color: #f4f4f4;
}

header {
    background-color: #333;
    padding: 10px 0;
    text-align: center;
}

header nav ul {
    list-style: none;
    padding: 0;
}

header nav ul li {
    display: inline;
    margin: 0 15px;
}

header nav ul li a {
    color: white;
    text-decoration: none;
    font-weight: bold;
}

header nav ul li a:hover {
    text-decoration: underline;
}

section {
    padding: 50px 20px;
    text-align: center;
}

section#home {
    background-color: #021a33;
    color: white;
}

section#about, section#contact {
    background-color: #fff;
    color: #333;
}

section#services {
    background-color: #e9e9e9;
    color: #333;
}

footer {
    background-color: #333;
    color: white;
    text-align: center;
    padding: 10px 0;
}