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

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

header nav a {
    color: #fff;
    text-decoration: none;
    margin: 0 1rem;
    padding: 0.5rem;
}

main {
    padding: 2rem;
    max-width: 900px;
    margin: auto;
}

section {
    background: #fff;
    padding: 2rem;
    margin-bottom: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

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

/* Responsive Styles */
@media (max-width: 768px) {
    header nav a {
        display: block;
        margin: 0.5rem 0;
    }
}