*{box-sizing:border-box} [hidden]{display:none!important}
:root{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#1e3431;background:#edf1ed;font-size:16px}
body{margin:0;padding:clamp(16px,5vw,64px) 16px;min-height:100vh}
main{max-width:510px;margin:auto;padding:clamp(24px,5vw,48px);border:1px solid #cbd6ce;border-radius:20px;background:#fff;box-shadow:0 12px 42px #2543350c}
header{display:flex;align-items:center;gap:10px;font-size:17px;letter-spacing:-.02em;margin-bottom:30px}
.mark{display:grid;place-items:center;width:32px;height:32px;border-radius:9px;color:#ecf4ed;background:#25594d;font-size:24px}
h1{font-size:clamp(28px,6vw,39px);line-height:1.09;letter-spacing:-.045em;margin:0}
p{line-height:1.55;color:#4a605a;margin:12px 0 22px}
form{display:grid;gap:18px} label,legend{font-size:14px;font-weight:650}label{display:grid;gap:7px}
input,select,button{font:inherit}input,select{padding:12px;width:100%;border-radius:8px;border:1px solid #a9b9af;color:#18342e;background:#fff;font-weight:400}
button{border:0;border-radius:8px;padding:13px 18px;background:#25594d;color:white;font-weight:650;cursor:pointer}button:disabled{opacity:.55;cursor:wait}
.secondary{display:block;margin:14px 0 0;padding:7px 0;background:transparent;color:#25594d}
a{color:#215b48;font-weight:600}button:focus-visible,input:focus-visible,select:focus-visible,a:focus-visible{outline:3px solid #527ce2;outline-offset:3px}
fieldset{border:0;border-top:1px solid #d6ddd6;margin:4px 0 0;padding:14px 0 0;display:grid;gap:14px}legend{padding-right:8px}
.note{font-size:13px;margin:10px 0 0}.error{color:#943127;font-weight:550;margin:16px 0 0}.error:empty{display:none}
#qr{display:block;max-width:100%;height:auto;margin:14px auto;border:1px solid #d6ddd6;border-radius:8px}