.auth-body {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 1rem;
}

.auth-wrap {
  width: 100%;
  max-width: 420px;
}

.auth-wrap .app-header {
  text-align: center;
}

.auth-wrap .app-header h1 {
  font-size: 1.15rem;
}

.auth-card {
  background: var(--md-surface);
  border: 1px solid var(--md-outline-variant);
  border-top: none;
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  padding: 1.5rem;
  box-shadow: var(--elevation-2);
}

.auth-tabs {
  display: flex;
  gap: 0.15rem;
  margin-bottom: 1.25rem;
  border-bottom: 1px solid var(--md-outline-variant);
}

.auth-tab {
  flex: 1;
  background: none;
  border: none;
  padding: 0.55rem 0.3rem;
  font-size: 0.8rem;
  color: var(--md-text-muted);
  cursor: pointer;
  border-bottom: 3px solid transparent;
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  transition: background 0.15s ease, color 0.15s ease;
}

.auth-tab:hover {
  color: var(--md-text);
  background: var(--md-surface-variant);
}

.auth-tab.active {
  color: var(--md-primary);
  border-bottom-color: var(--md-primary);
  font-weight: 600;
  background: transparent;
}

.auth-panel {
  display: none;
}

.auth-panel.active {
  display: block;
}

.auth-panel form {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.auth-panel label {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-size: 0.85rem;
  color: var(--color-muted);
}

.auth-error {
  color: var(--md-error);
  font-size: 0.85rem;
  margin: 0.75rem 0 0;
  min-height: 1em;
}

.auth-success {
  color: var(--md-success);
  font-size: 0.85rem;
  margin: 0.5rem 0 0;
  min-height: 1em;
}

.recovery-codes-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
  background: var(--md-surface-variant);
  border: 1px solid var(--md-outline-variant);
  border-radius: var(--radius-sm);
  padding: 1rem;
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: 0.95rem;
}

@media (max-width: 400px) {
  .recovery-codes-grid {
    grid-template-columns: 1fr;
  }
}