body{font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;margin:0;background:#F7F8FA;color:#1E2430;line-height:1.6}
nav{background:#0F2040;padding:12px}nav a{color:#fff;margin-right:14px;text-decoration:none}
main{max-width:760px;margin:0 auto;padding:24px}h1,h2{color:#0F2040}a{color:#0B6B5E}
footer{background:#0F2040;color:#fff;padding:20px;margin-top:40px}footer a{color:#fff}
label{display:block;margin-top:12px;font-weight:600}input,textarea,select{width:100%;padding:10px;margin-top:6px;box-sizing:border-box}
button{background:#0E9A8B;color:#fff;border:0;padding:12px 18px;margin-top:14px;cursor:pointer;font-size:16px}
#result,#output{background:#fff;border:1px solid #ddd;padding:14px;margin-top:14px;white-space:pre-wrap}
.no-promise{color:#F5A623}