* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: system-ui, -apple-system, sans-serif;
    color: #333;
}

nav {
    background: #fff;
    border-bottom: 1px solid #e8e8e8;
    padding: 0.75rem 1.5rem;
    display: flex;
    gap: 1.5rem;
}

nav a {
    text-decoration: none;
    color: #777;
    font-size: 0.875rem;
}

nav a:hover {
    color: #000;
}

nav a.active {
    color: #000;
    font-weight: 500;
}

.content {
    max-width: 720px;
    margin: 2rem auto;
    padding: 0 1.5rem 4rem;
    line-height: 1.75;
}

.content h1 {
    font-size: 1.75rem;
    margin-bottom: 0.25rem;
}

.content h2 {
    font-size: 1.2rem;
    margin-top: 2rem;
    margin-bottom: 0.5rem;
}

.content h3 {
    font-size: 1rem;
    margin-top: 1.5rem;
    margin-bottom: 0.25rem;
}

.content h4 {
    font-size: 0.95rem;
    margin-top: 1.25rem;
    margin-bottom: 0.25rem;
}

.content address {
    font-style: normal;
}

.content a {
    color: #333;
}

.content ul {
    padding-left: 1.5rem;
}

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

.intro {
    color: #666;
    margin-top: 0;
}