:root{
  --bg:#f7f5f0;
  --paper:#ffffff;
  --ink:#141414;
  --muted:#6f6a60;
  --line:#e7e2d8;
  --gold:#c9a24b;
  --gold2:#b98c2f;
  --shadow: 0 18px 40px rgba(0,0,0,.10);
  --radius: 22px;
}
*{box-sizing:border-box}
body{
  margin:0;
  min-height:100vh;
  display:grid;
  place-items:center;
  font-family:system-ui,-apple-system,"Segoe UI",Tahoma,Arial;
  background: radial-gradient(1100px 500px at 75% -10%, rgba(201,162,75,.22), transparent 60%),
              radial-gradient(900px 420px at 12% 0%, rgba(201,162,75,.12), transparent 55%),
              var(--bg);
  color:var(--ink);
  padding:22px 14px;
}
.card{
  width:min(520px, 100%);
  background: rgba(255,255,255,.92);
  border:1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding:22px;
}
.brand{
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:14px;
}
.logo{
  width:62px;height:62px;border-radius:18px;
  border:1px solid var(--line);
  background:#fff;
  display:grid;place-items:center;
  overflow:hidden;
}
.logo img{width:84%;height:84%;object-fit:contain}
.name{font-weight:1000; font-size:18px; line-height:1.2}
.sub{color:var(--muted); font-size:12px; margin-top:2px}
h2{margin:6px 0 14px; font-size:18px; font-weight:1000}
label{display:block; font-size:12px; color:var(--muted); margin:10px 0 6px}
input{
  width:100%;
  padding:12px 12px;
  border-radius: 14px;
  border:1px solid var(--line);
  background:#fff;
  outline:none;
}
input:focus{border-color: rgba(201,162,75,.55); box-shadow:0 0 0 4px rgba(201,162,75,.18)}
.btn{
  width:100%;
  margin-top:14px;
  padding:12px 14px;
  border-radius: 14px;
  border:1px solid rgba(201,162,75,.55);
  background: linear-gradient(180deg, rgba(201,162,75,.95), rgba(185,140,47,.95));
  color:#1a1406;
  font-weight:1000;
  cursor:pointer;
}
.err{
  background: rgba(183,28,28,.06);
  border:1px solid rgba(183,28,28,.18);
  color:#8b1a1a;
  padding:10px 12px;
  border-radius: 14px;
  font-size:13px;
}
.note{
  margin-top:14px;
  text-align:center;
  color:var(--muted);
  font-size:12px;
}