:root { color-scheme: dark; }
html { background: #070d18; }
body { margin: 0; color: #dfe7f2; font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
main { max-width: 720px; margin: 0 auto; padding: 32px 16px 64px; }
h1 { font-size: 2rem; margin: 16px 0 8px; color: #fff; }
h2 { font-size: 1.1rem; margin: 28px 0 6px; color: #ffb357; }
a { color: #8fc3ff; }
a:hover { color: #fff; }