/* ==========================================================================
   Nexus Identity — Auth (pre-login) pages
   The dialog/auth pages link portal.css for tokens + shared components
   (.nx-card, .nx-field, .nx-btn, …). This file only adds the centered page
   shell and the few auth-specific pieces (brand, divider, SSO button, notes,
   status icons). Token-driven only — never hardcode colors.
   ========================================================================== */

/* Centered page shell */
.nx-auth {
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: var(--space-24);
  background: var(--surface-canvas);
}

/* Card */
.nx-auth__card {
  width: 100%;
  max-width: 440px;
  background: var(--surface-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-2xl);
  box-shadow: var(--elevation-dialog);
  padding: var(--space-32);
}

.nx-auth__card--wide { max-width: 560px; }

@media (max-width: 480px) {
  .nx-auth__card { padding: var(--space-24); }
}

/* Brand mark */
.nx-auth__brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-10);
  margin-bottom: var(--space-20);
  color: var(--text-primary);
}
.nx-auth__brand img { width: 28px; height: 28px; border-radius: var(--radius-md); }
.nx-auth__brand span { font: var(--type-title-3); letter-spacing: var(--tracking-tight); }

/* Heading block */
.nx-auth__head { text-align: center; margin-bottom: var(--space-24); }
.nx-auth__title { font: var(--type-title-2); color: var(--text-primary); }
.nx-auth__sub { font: var(--type-body); color: var(--text-secondary); margin-top: var(--space-6); }

/* Body text / messages */
.nx-auth__text { font: var(--type-body); color: var(--text-secondary); line-height: 1.5; }
.nx-auth__text + .nx-auth__text { margin-top: var(--space-12); }

/* Status icon (success/expired/etc. landing pages) */
.nx-auth__icon {
  width: 52px;
  height: 52px;
  margin: 0 auto var(--space-16);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-circle);
  background: var(--brand-10);
  color: var(--accent-text);
}
.nx-auth__icon svg {
  width: 26px; height: 26px;
  stroke: currentColor; fill: none;
  stroke-width: 2; stroke-linecap: round; stroke-linejoin: round;
}
.nx-auth__icon--success { background: var(--success-bg); color: var(--success-fg); }
.nx-auth__icon--danger  { background: var(--danger-bg);  color: var(--danger-fg); }
.nx-auth__icon--warning { background: var(--warning-bg); color: var(--warning-fg); }

/* Inline link inside a form (e.g. "Forgot password?") */
.nx-auth__link {
  font: var(--type-caption-strong);
  color: var(--text-link);
  text-align: center;
}

/* Footer links under a form/card */
.nx-auth__foot {
  margin-top: var(--space-20);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-8);
  text-align: center;
}

/* Make form submit buttons span the card width */
.nx-auth .nx-form .nx-btn,
.nx-auth .nx-btn--block { width: 100%; }

/* Disabled / read-only inputs (e.g. Microsoft-provided fields) */
.nx-field__input:disabled,
.nx-field__input[readonly] {
  background: var(--surface-disabled);
  color: var(--text-secondary);
  cursor: not-allowed;
}

/* Validation/error banner */
.nx-auth__alert {
  font: var(--type-body);
  padding: var(--space-10) var(--space-12);
  border-radius: var(--radius-md);
  background: var(--danger-bg);
  border: 1px solid var(--danger-border);
  color: var(--danger-fg);
}

/* Divider with centered label */
.nx-divider {
  display: flex;
  align-items: center;
  gap: var(--space-12);
  color: var(--text-tertiary);
  font: var(--type-caption);
}
.nx-divider::before,
.nx-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border-subtle);
}

/* Microsoft SSO button — neutral, token-based */
.btn-ms {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-10);
  width: 100%;
  height: var(--control-h-lg);
  padding: 0 var(--space-12);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  background: var(--surface-card);
  color: var(--text-primary);
  font: var(--type-body-strong);
  text-decoration: none;
  cursor: pointer;
  transition: background var(--duration-fast) var(--ease-standard),
              border-color var(--duration-fast) var(--ease-standard);
}
.btn-ms:hover {
  background: var(--surface-hover);
  border-color: var(--border-strong);
  color: var(--text-primary);
  text-decoration: none;
}

/* Info note (sign-up guidance) */
.nx-auth__note {
  display: flex;
  align-items: flex-start;
  gap: var(--space-10);
  padding: var(--space-12);
  border-radius: var(--radius-md);
  background: var(--info-bg);
  border: 1px solid var(--info-border);
  font: var(--type-caption);
  color: var(--text-secondary);
  line-height: 1.45;
}
.nx-auth__note svg { width: 18px; height: 18px; flex-shrink: 0; }

/* Method choice cards (post-signup MFA enrollment) */
.nx-methodgrid {
  display: grid;
  gap: var(--space-12);
  grid-template-columns: 1fr 1fr;
}
@media (max-width: 480px) { .nx-methodgrid { grid-template-columns: 1fr; } }

.nx-methodcard {
  display: flex;
  flex-direction: column;
  gap: var(--space-10);
  padding: var(--space-16);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  background: var(--surface-card);
  box-shadow: var(--elevation-card);
  text-decoration: none;
  color: inherit;
  transition: border-color var(--duration-fast) var(--ease-standard),
              box-shadow var(--duration-fast) var(--ease-standard);
}
.nx-methodcard:hover {
  border-color: var(--border-strong);
  box-shadow: var(--elevation-raised);
  text-decoration: none;
}
.nx-methodcard__icon { color: var(--text-secondary); }
.nx-methodcard__title { font: var(--type-body-strong); color: var(--text-primary); }
.nx-methodcard__sub {
  font: var(--type-caption);
  color: var(--text-secondary);
  margin-top: var(--space-2);
  line-height: 1.4;
}

/* Centered one-time-code input */
.nx-field__input--code {
  letter-spacing: 0.5em;
  text-align: center;
  font: var(--type-title-2);
  height: var(--space-48);
}