/* ==========================================================================
   Sign-in screen
   ========================================================================== */

.auth-body {
  background: var(--bg-deep);
  color: var(--text-on-dark);
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: var(--space-6);
  position: relative;
  overflow: hidden;
}

/* A warm gold wash behind the card so the charcoal does not read as flat. */
.auth-body::before {
  content: '';
  position: absolute;
  inset: -20%;
  background:
    radial-gradient(ellipse 50% 45% at 50% 30%, rgba(193, 151, 75, 0.16), transparent 65%),
    radial-gradient(ellipse 40% 40% at 80% 90%, rgba(193, 151, 75, 0.08), transparent 60%);
  pointer-events: none;
}

.auth-shell {
  width: 100%;
  max-width: 420px;
  position: relative;
  z-index: 1;
  animation: page-enter var(--dur-slow) var(--ease-entrance) both;
}

.auth-card {
  background: var(--bg-deep-alt);
  border: 1px solid var(--line-on-dark);
  border-radius: var(--radius-lg);
  padding: var(--space-10) var(--space-8) var(--space-8);
  box-shadow: var(--shadow-pop);
}

.auth-card__brand {
  text-align: center;
  margin-bottom: var(--space-8);
}

.auth-card__mark {
  width: 56px;
  height: 56px;
  margin: 0 auto var(--space-4);
  display: grid;
  place-items: center;
  border: 1px solid var(--gold);
  border-radius: 50%;
  color: var(--gold-soft);
  font-family: var(--font-display);
  font-size: var(--text-md);
  font-weight: var(--weight-bold);
  letter-spacing: 0.04em;
  box-shadow: 0 0 0 8px rgba(193, 151, 75, 0.06);
}

.auth-card__name {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-display);
}

.auth-card__sub {
  font-size: var(--text-2xs);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  color: var(--gold-soft);
  margin-top: var(--space-2);
}

/* Fields sit on the dark card, so flip their surface and ink. */
.auth-card .label { color: var(--text-on-dark-muted); }

.auth-card .input {
  background: rgba(250, 248, 245, 0.05);
  border-color: var(--line-on-dark);
  color: var(--text-on-dark);
}
.auth-card .input::placeholder { color: rgba(245, 240, 232, 0.35); }
.auth-card .input:hover { border-color: rgba(224, 200, 146, 0.4); }
.auth-card .input:focus-visible {
  border-color: var(--gold);
  background: rgba(250, 248, 245, 0.08);
  box-shadow: 0 0 0 3px rgba(193, 151, 75, 0.22);
}
.auth-card .input[aria-invalid='true'] {
  border-color: var(--danger);
  background: rgba(176, 74, 63, 0.14);
}

.auth-card .field__error { color: #E9A9A0; }   /* readable red on charcoal */
.auth-card .field__hint  { color: var(--text-on-dark-muted); }

.auth-card__help {
  margin-top: var(--space-6);
  padding-top: var(--space-5);
  border-top: 1px solid var(--line-on-dark);
  font-size: var(--text-xs);
  color: var(--text-on-dark-muted);
  text-align: center;
  line-height: var(--leading-normal);
}

.auth-card__back {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  margin-top: var(--space-6);
  font-size: var(--text-sm);
  color: var(--text-on-dark-muted);
  text-decoration: none;
  transition: color var(--dur-fast) var(--ease-state);
}
.auth-card__back:hover { color: var(--gold-soft); }
.auth-card__back:focus-visible { box-shadow: var(--focus-ring-dark); }

@media (max-width: 480px) {
  .auth-card { padding: var(--space-8) var(--space-5) var(--space-6); }
}

.auth-card__form { display: grid; gap: var(--space-4); }