/* ==========================================================================
   auth.css — Login pages (Admin / Teacher / Parent-Student)
   Consumes tokens from base.css only — no new colors/spacing values defined.
   ========================================================================== */

.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-bg);
  padding: var(--space-5);
}

.auth-card {
  width: 100%;
  max-width: 420px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-modal);
  padding: var(--space-6) var(--space-5);
}

@media (max-width: 575.98px) {
  .auth-card { padding: var(--space-5) var(--space-4); }
}

.auth-card.shake { animation: auth-shake 0.5s ease; }

@keyframes auth-shake {
  10%, 90% { transform: translateX(-1px); }
  20%, 80% { transform: translateX(2px); }
  30%, 50%, 70% { transform: translateX(-4px); }
  40%, 60% { transform: translateX(4px); }
}

.auth-brand { text-align: center; margin-bottom: var(--space-5); }

.auth-brand img {
  width: 56px;
  height: 56px;
  margin: 0 auto var(--space-3);
  border-radius: var(--radius-sm);
}

.auth-brand-school {
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-2);
}

.auth-heading {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-primary);
  margin: 0;
}

.auth-subtext {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-top: var(--space-2);
  margin-bottom: 0;
}

.auth-error-banner,
.auth-lockout-banner {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-sm);
  border-left: 4px solid transparent;
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-4);
}

.auth-error-banner {
  background: var(--color-danger-bg);
  color: var(--color-danger);
  border-left-color: var(--color-danger);
}

.auth-lockout-banner {
  background: var(--color-warning-bg);
  color: var(--color-warning);
  border-left-color: var(--color-warning);
}

.auth-error-banner .bi,
.auth-lockout-banner .bi { font-size: 1rem; margin-top: 1px; }

.auth-form .form-group:last-of-type { margin-bottom: var(--space-3); }

.auth-options {
  display: flex;
  justify-content: flex-end;
  margin-bottom: var(--space-4);
}

.auth-options a { font-size: var(--font-size-sm); font-weight: 600; }

.auth-submit {
  width: 100%;
  padding-top: 0.65rem;
  padding-bottom: 0.65rem;
}

.auth-submit .btn-spinner { margin-right: var(--space-1); }

.auth-footer-note {
  text-align: center;
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-5);
}