:root {
    --bg: #f7faf5;
    --surface: #ffffff;
    --text: #1d2419;
    --muted: #5b6655;
    --accent: #408a2e;
    --border: #dfe7da;
    color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #151a13;
        --surface: #1e251b;
        --text: #e8ede5;
        --muted: #a3ae9d;
        --accent: #8ed973;
        --border: #2f3a2b;
    }
}

* { box-sizing: border-box; }

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Helvetica Neue", Helvetica, Arial, sans-serif;
}

main {
    max-width: 680px;
    margin: 0 auto;
    padding: 48px 20px 64px;
}

header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 40px;
}

.logo {
    height: 30px;
    width: auto;
    display: block;
}

nav a {
    margin-left: 18px;
    font-size: 15px;
}

a {
    color: var(--accent);
    text-decoration: none;
}

a:hover { text-decoration: underline; }

h1 {
    font-size: 30px;
    line-height: 1.25;
    margin: 0 0 12px;
}

h2 {
    font-size: 20px;
    margin: 36px 0 8px;
}

p, li { color: var(--text); }

.lead {
    font-size: 19px;
    color: var(--muted);
    margin-top: 0;
}

.muted { color: var(--muted); }

.contact {
    margin-top: 40px;
    font-size: 14px;
    color: var(--muted);
    overflow-wrap: anywhere;
}

footer {
    margin-top: 56px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
    font-size: 14px;
    color: var(--muted);
}

@media (max-width: 480px) {
    main { padding-top: 32px; }
    h1 { font-size: 26px; }
    nav a { margin-left: 12px; }
}