body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;background:#f6f7f9;color:#111;margin:0;padding:24px}
main{max-width:680px;margin:40px auto;background:#fff;border:1px solid #e2e5e9;border-radius:18px;padding:24px;box-shadow:0 8px 28px rgba(0,0,0,.06)}
h1{margin-top:0}p{line-height:1.8}.btn{display:inline-block;background:#0aa596;color:#fff;text-decoration:none;padding:13px 18px;border-radius:12px;font-weight:700}.muted{color:#60646b;font-size:.92rem}