body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto;
    max-width: 1000px;
    margin: auto;
    padding: 40px;
    line-height: 1.7;
    background-color: #f9fafb;
    color: #111827;
}

nav {
    display: flex;
    gap: 20px;
    align-items: center;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

nav a {
    text-decoration: none;
    color: #2563eb;
    font-weight: 500;
}

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

.hero {
    text-align: center;
    margin-bottom: 60px;
}

h1 {
    font-size: 42px;
}

section {
    margin-bottom: 50px;
}

footer {
    text-align: center;
    margin-top: 60px;
    font-size: 14px;
    color: gray;
}