body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif;max-width:760px;margin:0 auto;padding:32px 20px;line-height:1.6;color:#1d1d1f}
h1{margin-bottom:4px}h2{margin-top:32px}.date{color:#6e6e73}a{color:#0066cc}
nav{margin-bottom:24px;padding-bottom:12px;border-bottom:1px solid #d2d2d7}nav a{margin-right:16px}
footer{margin-top:48px;padding-top:12px;border-top:1px solid #d2d2d7;color:#6e6e73;font-size:.9em}
.btn{display:inline-block;background:#0066cc;color:#fff;padding:10px 18px;border-radius:10px;text-decoration:none}
@media(prefers-color-scheme:dark){body{background:#111;color:#f5f5f7}.date,footer{color:#a1a1a6}a{color:#4da3ff}nav,footer{border-color:#38383a}.btn{background:#0a84ff;color:#fff}}