body{font:17px/1.6 system-ui,-apple-system,"Segoe UI",sans-serif;max-width:760px;margin:40px auto;padding:0 20px;color:#1b2430;background:#fff}
h1{font-size:1.8rem}h2{font-size:1.2rem;margin-top:1.8em}a{color:#1b4f8f}hr{border:0;border-top:1px solid #d8dee6;margin:2.5em 0}.muted{color:#566a71;font-size:.9rem}
@media (prefers-color-scheme:dark){body{background:#0f1b20;color:#e4edf0}a{color:#6fa8e8}hr{border-color:#2b4049}.muted{color:#94a9b0}}