body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background: #f4f4f4;
    color: #333;
}

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

header h1 {
    margin: 0;
}

main {
    padding: 20px;
    margin: 0 auto;
    max-width: 800px;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

section {
    margin-bottom: 20px;
}

h2 {
    border-bottom: 2px solid #f4f4f4;
    padding-bottom: 10px;
}

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

nav ul li {
    margin-bottom: 10px;
}

nav ul li a {
    text-decoration: none;
    color: #3030F1;
}

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

footer {
    text-align: center;
    padding: 20px;
    margin-top: 20px;
    font-size: 0.9em;
    color: #666;
}