:root{
  --brand:#0d6efd;
  --ink:#1b1f23;
}
body{ color:var(--ink); background:#f8f9fb; }
header p{ line-height:1.3; }

.gate-wrap{ min-height:60vh; }
.gate-card{ max-width:480px; }

.section-block{
  background:#fff;
  border-radius:16px;
  padding:20px;
  box-shadow: 0 8px 24px rgba(0,0,0,.06);
}

.nav-pills .nav-link{
  border-radius:999px;
}
.nav-pills .nav-link.active{
  background:var(--brand);
}

.sig-preview{
  max-height:60px;
  border:1px dashed #ced4da;
  padding:2px;
  background:#fff;
}

fieldset legend{
  font-size:.95rem;
  font-weight:600;
}

.small .text-muted, .form-text.small{ font-size:.825rem; }