body {
    font-family: Arial, sans-serif;
    margin: 0;
    background-color: #f4f4f4;
}

header {
    background-color: #2c3e50;
    color: white;
    padding: 20px;
}

header h1 {
    margin: 0;
}

nav ul {
    list-style: none;
    padding: 0;
    margin: 10px 0 0 0;
    display: flex;
    gap: 20px;
}

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

nav ul li a.active {
    text-decoration: underline;
}

main {
    padding: 20px;
    background-color: white;
    min-height: 400px;
}

footer {
    background-color: #2c3e50;
    color: white;
    text-align: center;
    padding: 10px;
}