.signup-main { padding: 48px 0 80px; max-width: 520px; }
.signup-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 28px;
}
.signup-card h1 { font-size: var(--step-3); }
.signup-card label { display: grid; gap: 6px; margin: 0 0 14px; font-weight: 600; font-size: 14px; }
.signup-card input {
  min-height: 44px;
  font-size: 16px;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0 12px;
  font-family: inherit;
}
.signup-qr { margin: 12px 0; display: grid; place-items: center; }
.signup-qr svg { width: 180px; height: 180px; background: #fff; }
#signupError { color: #b42318; min-height: 1.2em; }