:root{
  --bg:#f4f6f8; --card:#ffffff; --ink:#1b2430; --muted:#5b6773;
  --line:#dbe1e8; --brand:#0a3d62; --brand-ink:#ffffff;
  --accent:#1e6fb8; --err:#c0392b; --ok:#1e8449; --focus:#1e6fb8;
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);
  font:16px/1.55 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif}
.wrap{width:100%;max-width:720px;margin:0 auto;padding:0 20px}
.topbar{background:var(--brand);color:var(--brand-ink);padding:18px 0;box-shadow:0 1px 4px rgba(0,0,0,.12)}
.topbar .brand{font-weight:700;font-size:19px;letter-spacing:.2px}
.topbar .sub{font-size:14px;opacity:.85;margin-top:2px}
main.wrap{padding-top:28px;padding-bottom:28px}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;
  padding:26px 26px 30px;box-shadow:0 1px 3px rgba(16,24,40,.04)}
.card.center{text-align:center}
h1{font-size:22px;margin:0 0 12px}
.intro{color:var(--muted);margin:0 0 20px}
fieldset{border:1px solid var(--line);border-radius:10px;padding:16px 16px 6px;margin:0 0 18px}
legend{font-weight:600;font-size:14px;color:var(--brand);padding:0 6px}
legend .opt{color:var(--muted);font-weight:400}
.field{margin-bottom:16px}
label{display:block;font-weight:600;font-size:14px;margin-bottom:6px}
.req{color:var(--err)}
input[type=text],input[type=email],textarea,select{
  width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:8px;
  font:inherit;color:var(--ink);background:#fff}
textarea{resize:vertical;min-height:88px}
input:focus,textarea:focus,select:focus{outline:2px solid var(--focus);outline-offset:1px;border-color:var(--focus)}
.field.has-err input,.field.has-err textarea,.field.has-err select{border-color:var(--err)}
.hint{color:var(--err);font-size:13px;margin-top:5px}
.banner{border-radius:8px;padding:10px 14px;margin:0 0 18px;font-size:14px}
.banner.err{background:#fdecea;color:var(--err);border:1px solid #f5c6c0}
.actions{margin-top:22px}
button{background:var(--brand);color:#fff;border:0;border-radius:8px;
  padding:12px 26px;font:inherit;font-weight:600;cursor:pointer}
button:hover{background:#0c4b78}
button:focus{outline:2px solid var(--focus);outline-offset:2px}
.btnlink{display:inline-block;margin-top:8px;color:var(--accent);text-decoration:none;font-weight:600}
.btnlink:hover{text-decoration:underline}
.check,.cross{width:56px;height:56px;border-radius:50%;margin:6px auto 12px;
  display:flex;align-items:center;justify-content:center;font-size:30px;font-weight:700}
.check{background:#e6f4ea;color:var(--ok)}
.cross{background:#fdecea;color:var(--err)}
.foot{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  color:var(--muted);font-size:12px;padding-top:6px;padding-bottom:24px}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.visually-hidden{position:absolute;left:-9999px}
@media (max-width:480px){.foot{flex-direction:column;gap:4px}}
.help{color:var(--muted);font-size:13px;margin:-2px 0 8px;line-height:1.4}
.opt{color:var(--muted);font-weight:400}