:root{
  --navy:#17243b;
  --ivory:#f7f3e9;
  --ink:#20242a;
  --muted:#70757c;
  --line:#d9d4c8;
  --ok:#216e4a;
  --bad:#a33;
}
*{box-sizing:border-box}
body{
  margin:0;
  background:var(--ivory);
  color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"Pretendard","Noto Sans KR",sans-serif;
}
main{max-width:520px;margin:0 auto;padding:44px 22px 72px}
.brand{font-weight:800;letter-spacing:.16em;color:var(--navy);font-size:14px}
h1{font-size:30px;line-height:1.25;margin:16px 0 8px;color:var(--navy)}
p{line-height:1.65}
.sub{color:var(--muted);margin:0 0 28px}
.card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:18px;
  padding:22px;
  box-shadow:0 8px 24px rgba(23,36,59,.05);
}
.row{display:grid;gap:8px;margin:14px 0}
label{font-size:13px;font-weight:700}
input{
  width:100%;
  border:1px solid var(--line);
  border-radius:12px;
  padding:13px 14px;
  font-size:16px;
  background:#fff;
}
button{
  width:100%;
  border:0;
  border-radius:12px;
  padding:14px 16px;
  font-size:15px;
  font-weight:800;
  cursor:pointer;
}
.primary{background:var(--navy);color:#fff}
.secondary{background:#ece8de;color:var(--navy);margin-top:9px}
button:disabled{opacity:.5;cursor:not-allowed}
.status{
  margin:16px 0 0;
  padding:12px 14px;
  border-radius:12px;
  background:#f4f4f2;
  font-size:14px;
  line-height:1.5;
}
.status.ok{color:var(--ok);background:#edf7f1}
.status.bad{color:var(--bad);background:#fff0f0}
.hidden{display:none}
.small{font-size:12px;color:var(--muted);margin-top:16px}
.done{font-size:22px;font-weight:800;color:var(--ok);margin:8px 0}
@media (max-width:390px){
  main{padding:32px 18px 56px}
  h1{font-size:27px}
  .card{padding:20px}
}