.secure-gate {
  min-height: 100vh; display: grid; place-items: center; padding: 24px;
  background: #f8fafc; color: #17202a;
}
.secure-card {
  width: min(420px, calc(100vw - 32px)); background: #fff; border: 1px solid #e2e8f0;
  border-radius: 14px; padding: 28px; box-shadow: 0 18px 45px rgba(15, 23, 42, .08);
}
.secure-mark {
  width: 42px; height: 42px; border-radius: 10px; display: grid; place-items: center;
  background: #2563eb; color: #fff; font-weight: 800; margin-bottom: 16px;
}
.secure-card h1 { margin: 0 0 6px; font-size: 22px; }
.secure-card p { margin: 0 0 18px; color: #667085; font-size: 14px; }
.secure-card label { display: block; font-size: 13px; font-weight: 700; margin-bottom: 8px; }
.secure-card input {
  width: 100%; height: 42px; border-radius: 8px; border: 1px solid #cbd5e1;
  padding: 0 12px; font-size: 16px; outline: none;
}
.secure-card input:focus { border-color: #2563eb; box-shadow: 0 0 0 3px rgba(37, 99, 235, .12); }
.secure-card button {
  width: 100%; height: 42px; border: 0; border-radius: 8px; margin-top: 14px;
  background: #2563eb; color: #fff; font-weight: 800; cursor: pointer;
}
.secure-error { color: #dc2626; margin-top: 10px; min-height: 20px; font-size: 13px; }
.locked { display: none !important; }