:root { color-scheme: dark; --bg: #0f1a14; --text: #e8efe9; --muted: #8fa597; --accent: #7bd88f; font-family: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif; }
body { margin: 0; background: var(--bg); color: var(--text); min-height: 100vh; display: grid; grid-template-rows: 1fr auto; }
main { max-width: 640px; margin: 0 auto; padding: 64px 16px; line-height: 1.55; }
h1 { font-size: 40px; margin: 16px 0 8px; }
a { color: var(--accent); }
.lead { font-size: 20px; }
.muted { color: var(--muted); }
.small { font-size: 14px; }
footer { text-align: center; padding: 24px 16px; }