body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background: #f4f4f4;
    color: #333;
}

header {
    background: #0073e6;
    color: white;
    padding: 10px 20px;
}

header h1 {
    margin: 0;
}

nav ul {
    list-style: none;
    padding: 0;
    display: flex;
    gap: 15px;
}

nav ul li {
    display: inline;
}

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

main {
    padding: 20px;
    background: white;
    max-width: 960px;
    margin: auto;
}

footer {
    text-align: center;
    padding: 10px;
    background: #0073e6;
    color: white;
    position: relative;
    bottom: 0;
    width: 100%;
}