body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC",sans-serif;max-width:780px;margin:2rem auto;padding:0 1rem;line-height:1.8;background:#0f1220;color:#e8ebff}
a{color:#9bc1ff;text-decoration:none}a:hover{text-decoration:underline}
header h1{font-size:1.5rem} h2{margin-top:2rem}