body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
    margin: 0;
    padding: 0;
    background: #f6f8fb;
    color: #222;
}

.container {
    max-width: 900px;
    margin: auto;
    padding: 40px 20px;
}

h1 {
    color: #2b5cff;
}

h2 {
    margin-top: 32px;
}

nav {
    background: white;
    border-bottom: 1px solid #ddd;
}

nav .container {
    display: flex;
    gap: 20px;
    align-items: center;
}

nav a {
    text-decoration: none;
    color: #2b5cff;
    font-weight: 500;
}

footer {
    margin-top: 40px;
    padding: 20px;
    text-align: center;
    color: #666;
    font-size: 14px;
}