:root{font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#1f2937;background:#f8fafc}body{margin:0;min-height:100vh;display:grid;place-items:center}main{width:min(680px,calc(100vw - 40px));padding:48px 0}h1{font-size:32px;line-height:1.2;margin:0 0 12px}p{font-size:17px;line-height:1.6;margin:0 0 20px;color:#4b5563}a{color:#075985;text-decoration:none}a:hover{text-decoration:underline}