body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    max-width: 900px;
    margin: 0 auto;
    padding: 1.5rem;
    line-height: 1.6;
    background-color: #fdfdfd;
    color: #222;
}

nav {
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid #ddd;
}

nav a {
    margin-right: 1rem;
    text-decoration: none;
    color: #0056b3;
}

nav a strong {
    text-decoration: underline;
}

h1, h2, h3 {
    color: #222;
    font-weight: 600;
}

.section {
    margin-bottom: 2rem;
}

.section ul {
    padding-left: 1.2rem;
}

.section li {
    margin-bottom: 0.25rem;
}

a {
    color: #0056b3;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

code {
    font-family: Menlo, Consolas, "Liberation Mono", monospace;
    font-size: 0.9em;
    background: #f3f4f6;
    padding: 0.1em 0.25em;
    border-radius: 3px;
}

.footer {
    margin-top: 3rem;
    padding-top: 1rem;
    border-top: 1px solid #ddd;
    font-size: 0.85rem;
    color: #777;
}