body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #f5f5f5;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: auto;
}

.header {
    background: #222;
    color: white;
    padding: 20px 0;
}

.navbar {
    background: #444;
    padding: 10px 0;
}

.navbar ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
}

.navbar li {
    margin-right: 20px;
}

.navbar a {
    color: white;
    text-decoration: none;
}

.main-content {
    background: white;
    padding: 30px;
    min-height: 500px;
}

.footer {
    background: #222;
    color: white;
    padding: 20px 0;
    margin-top: 30px;
}