body {
    font-family: Arial, sans-serif;
    margin: 0;
    background: #f9f9f9;
    color: #222;
}

nav {
    background: #0078d7;
    padding: 1rem 0;
}
nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin: 0;
    padding: 0;
}
nav a {
    color: #fff;
    text-decoration: none;
    font-weight: bold;
    font-size: 1.1rem;
    transition: color 0.2s;
}
nav a:hover {
    color: #ffd700;
}

main {
    max-width: 800px;
    margin: 2rem auto;
    padding: 1rem;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

section {
    margin-bottom: 2rem;
}

h1 {
    color: #0078d7;
    margin-top: 0;
}