body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: #f7f7f7;
    color: #222;
    line-height: 1.6;
}

header {
    background: #111;
    color: white;
    padding: 20px 0;
}

nav {
    display: flex;
    justify-content: center;
    gap: 30px;
}

nav a {
    color: white;
    text-decoration: none;
    font-weight: 500;
}

nav a:hover {
    opacity: 0.7;
}

.hero {
    background: #222;
    color: white;
    padding: 80px 20px;
    text-align: center;
}

.container {
    width: 90%;
    max-width: 900px;
    margin: auto;
    padding: 40px 0;
}

h1, h2 {
    margin-bottom: 20px;
}

footer {
    background: #111;
    color: white;
    text-align: center;
    padding: 20px 0;
    margin-top: 40px;
}

ul {
    padding-left: 20px;
}