/*
 * Auth flow — layout and page styles for Sign In, OTP, and onboarding.
 *
 * Uses engine tokens exclusively (--spacing-*, --color-*, --font-*, --border-radius-*).
 * Loaded only in the onboarding layout via stylesheet_link_tag "auth".
 */

/* === Auth Layout === */

.auth-layout {
  height: 100dvh;
  display: flex;
  overflow: hidden;
}

.auth-form-panel {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100%;
  overflow-y: auto;
  background-color: var(--color-white);
}

.auth-logo {
  display: flex;
  align-items: flex-start;
  padding: 28px var(--spacing-32);
}

.auth-logo img {
  height: 32px;
}

.auth-form-center {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-24);
}

.auth-form-content {
  width: 100%;
  max-width: 448px;
}

.auth-flash {
  margin-bottom: var(--spacing-16);
  padding: var(--spacing-12);
  border: 1px solid;
  border-radius: var(--border-radius-md);
  font-family: var(--font-family-paragraph);
  font-size: var(--font-size-14);
  line-height: var(--line-height-20);
}

.auth-flash--alert {
  background-color: var(--color-danger-tertiary);
  border-color: color-mix(in oklch, var(--color-error-600) 40%, transparent);
  color: var(--color-text-danger-secondary);
}

.auth-flash--notice {
  background-color: var(--color-positive-tertiary);
  border-color: color-mix(in oklch, var(--color-positive) 40%, transparent);
  color: var(--color-text-positive-secondary);
}

.auth-cover-panel {
  display: none;
  flex-shrink: 0;
  padding: var(--spacing-8);
  background-color: var(--color-white);
}

.auth-cover {
  position: relative;
  flex: 1;
  overflow: hidden;
  border-radius: var(--border-radius-lg);
  background-color: var(--color-brand);
  background-size: cover;
  background-position: center;
}

.auth-cover-overlay {
  position: absolute;
  top: 85px;
  left: 0;
  right: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-32);
  color: var(--color-white);
}

.auth-cover-overlay img {
  height: 26px;
}

.auth-cover-tagline {
  font-family: var(--font-family-headline);
  font-size: var(--font-size-24);
  font-weight: var(--font-weight-medium);
  line-height: var(--line-height-34);
  text-align: center;
}

@media (min-width: 1024px) {
  .auth-logo {
    padding: 28px 68px;
  }

  .auth-form-center {
    padding-right: var(--spacing-16);
  }

  .auth-cover-panel {
    display: flex;
    /* Proportional so the column keeps its share on wider viewports (border-box: includes the 8px padding). */
    width: 40%;
    max-width: 800px;
  }
}

/* === Sign In === */

.sign-in-wrapper {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-40);
  padding-bottom: var(--spacing-64);
  width: 425px;
  max-width: 100%;
}

.sign-in-title {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-40);
}

.sign-in-heading {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-24);
}

.sign-in-heading__title {
  margin: 0;
  font-family: var(--font-family-headline);
  font-size: var(--font-size-32);
  font-weight: var(--font-weight-medium);
  line-height: var(--line-height-40);
  color: var(--color-text-neutral-primary);
}

.sign-in-heading__subtitle {
  margin: 0;
  font-family: var(--font-family-paragraph);
  font-size: var(--font-size-18);
  font-weight: var(--font-weight-medium);
  line-height: var(--line-height-28);
  color: var(--color-text-brand-primary);
}

.sign-in-title__hint {
  margin: 0;
  font-family: var(--font-family-paragraph);
  font-size: var(--font-size-18);
  font-weight: var(--font-weight-regular);
  line-height: var(--line-height-28);
  color: var(--color-text-neutral-secondary);
}

.sign-in-actions {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-24);
  max-width: 400px;
}

.sign-in-actions .ui-techfx-identity-google-auth-button,
.sign-in-actions .ui-techfx-identity-google-auth-button .ui-techfx-button {
  width: 100%;
}

.sign-in-email-section {
  display: flex;
  flex-direction: column;
}

.sign-in-email-section .ui-techfx-horizontal-divider__text {
  font-size: var(--font-size-18);
  color: var(--color-text-neutral-secondary);
}

.sign-in-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-12);
  padding-top: var(--spacing-16);
}

.sign-in-form .ui-techfx-input {
  height: 48px;
  padding-block: 0;
}

.sign-in-form .ui-techfx-button {
  width: 100%;
}

/* === OTP === */

.otp-container {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-32);
  width: 425px;
  max-width: 100%;
  padding-bottom: var(--spacing-64);
}

.otp-header {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-16);
}

.otp-header__title {
  margin: 0;
  font-family: var(--font-family-headline);
  font-size: var(--font-size-32);
  font-weight: var(--font-weight-medium);
  line-height: var(--line-height-40);
  color: var(--color-text-neutral-primary);
}

.otp-header__subtitle {
  margin: 0;
  font-family: var(--font-family-paragraph);
  font-size: var(--font-size-18);
  font-weight: var(--font-weight-regular);
  line-height: var(--line-height-28);
  color: var(--color-text-neutral-secondary);
}

.otp-header .email-highlight {
  font-weight: var(--font-weight-medium);
}

.otp-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-32);
}

.otp-code {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-24);
}

.otp-countdown {
  margin: 0;
  font-family: var(--font-family-paragraph);
  font-size: var(--font-size-14);
  font-weight: var(--font-weight-regular);
  line-height: var(--line-height-20);
  color: var(--color-text-neutral-secondary);
}

.otp-countdown__timer {
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-brand-secondary);
}

.otp-actions {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-8);
}

.otp-actions .ui-techfx-button {
  width: 100%;
}

/* Mirrors .ui-techfx-button--secondary--sm: the design system has no link-shaped-as-button. */
.otp-back-link {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 32px;
  border-radius: var(--border-radius-md);
  background: var(--color-background-brand-light);
  box-shadow: var(--shadow-xs);
  color: var(--color-text-brand-primary);
  font-family: var(--font-family-paragraph);
  font-size: var(--font-size-14);
  font-weight: var(--font-weight-medium);
  line-height: var(--line-height-20);
  text-decoration: none;
}

.otp-back-link:hover {
  color: var(--color-text-inverse-primary);
  background: var(--color-background-brand-default);
}

/* not --focus-ring-brand-light-2px: it resolves to #f4ebff, this element's own background.
   Same trade-off already recorded on .settings-section-button in screens/settings/settings.css. */
.otp-back-link:focus-visible {
  outline: none;
  box-shadow: var(--shadow-xs), 0 0 0 var(--spacing-2) var(--color-primary-900);
}

/* 20 here + the container's 32 preserves the 52px the removed .otp-action-block gave. */
.otp-resend {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-8);
  padding-top: var(--spacing-20);
}

.otp-resend__prompt {
  font-family: var(--font-family-paragraph);
  font-size: var(--font-size-16);
  font-weight: var(--font-weight-regular);
  line-height: var(--line-height-24);
  color: var(--color-text-neutral-primary);
}

.otp-resend form {
  display: inline;
}

.otp-resend-btn {
  font-family: var(--font-family-paragraph);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-brand-primary);
  background: transparent;
  border: 0;
  cursor: pointer;
  padding: 0;
}

.otp-resend-btn:hover {
  text-decoration: underline;
}

.auth-footer {
  padding-inline: var(--spacing-32);
  padding-bottom: var(--spacing-32);
}

@media (min-width: 1024px) {
  .auth-footer {
    padding-inline: var(--spacing-48);
  }
}