body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    line-height: 1.6;
    color: #333;
    background: url('background.jpg') no-repeat center center fixed;
    background-size: cover;
}

header.banner {
    background: url('banner.jpg') no-repeat center center;
    background-size: cover;
    color: #fff;
    text-align: center;
    padding: 4rem 0;
}

header.banner .banner-content {
    background: rgba(0, 0, 0, 0.5);
    display: inline-block;
    padding: 1rem 2rem;
    border-radius: 10px;
}

nav ul {
    background: #333;
    color: #fff;
    padding: 0;
    list-style: none;
    display: flex;
    justify-content: center;
    margin: 0;
}

nav ul li {
    margin: 0;
    padding: 0.5rem 1rem;
}

nav ul li a {
    color: #fff;
    text-decoration: none;
}

main {
    padding: 2rem;
}

section {
    margin-bottom: 2rem;
    background: rgba(255, 255, 255, 0.8);
    padding: 1rem;
    border-radius: 10px;
}

footer {
    text-align: center;
    padding: 1rem 0;
    background: #333;
    color: #fff;
}