/* ============================================
   VTU PLATFORM — AUTH CSS
   Login, Signup, Forgot Password, Onboarding
   No inline styles anywhere — all classes here
   ============================================ */


/* ─── AUTH SHELL ────────────────────────────*/

.auth-page {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  padding: env(safe-area-inset-top) 0 env(safe-area-inset-bottom);
}

.auth-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: var(--space-lg) var(--page-padding-x);
  max-width: var(--max-content-width);
  margin: 0 auto;
  width: 100%;
}


/* ─── AUTH HEADER ───────────────────────────*/

.auth-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) 0 var(--space-xl);
}

.auth-logo {
  height: 30px;
  width: auto;
}

.auth-header__spacer {
  width: 36px;
}

.auth-back {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  cursor: pointer;
  border: 1px solid var(--border-soft);
  transition: background-color var(--transition-fast);
  background: var(--bg-card);
}
.auth-back:hover { background: var(--bg-hover); }


/* ─── AUTH TITLE BLOCK ──────────────────────*/

.auth-title-block {
  margin-bottom: var(--space-xl);
}

.auth-title {
  font-size: var(--text-2xl);
  font-weight: var(--font-bold);
  color: var(--text-primary);
  line-height: var(--leading-tight);
  margin-bottom: var(--space-xs);
}

.auth-subtitle {
  font-size: var(--text-base);
  color: var(--text-secondary);
  line-height: var(--leading-normal);
}


/* ─── AUTH FORM ─────────────────────────────*/

.auth-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  flex: 1;
}

.auth-form .input-field {
  padding-top: 15px;
  padding-bottom: 15px;
  font-size: var(--text-md);
}

.auth-submit {
  margin-top: var(--space-sm);
  padding: 16px;
  font-size: var(--text-md);
  font-weight: var(--font-semi);
}


/* ─── VISIBILITY TOGGLE ─────────────────────*/

/* JS toggles .is-hidden / .is-visible instead of style= */
.is-hidden  { display: none !important; }
.is-visible { display: flex !important; }
.is-visible--block { display: block !important; }
.is-visible--inline { display: inline !important; }


/* ─── FORGOT LINK ───────────────────────────*/

.auth-forgot-link {
  font-size: var(--text-xs);
}


/* ─── PASSWORD STRENGTH ─────────────────────*/

.password-strength {
  display: none;
  flex-direction: column;
  gap: 6px;
}
.password-strength.is-visible {
  display: flex;
}

.strength-bars {
  display: flex;
  gap: 4px;
}

.strength-bar {
  flex: 1;
  height: 3px;
  background: var(--bg-elevated);
  border-radius: var(--radius-full);
  transition: background-color var(--transition-normal);
}

.strength-label {
  font-size: var(--text-xs);
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.strength-bar.weak,
.strength-label.weak   { background: var(--danger); color: var(--danger); }
.strength-bar.medium,
.strength-label.medium { background: var(--pending); color: var(--pending); }
.strength-bar.strong,
.strength-label.strong { background: var(--success); color: var(--success); }


/* ─── SOCIAL AUTH ───────────────────────────*/

.auth-social {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.btn--social {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 14px;
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: var(--text-base);
  font-weight: var(--font-medium);
  cursor: pointer;
  transition:
    background-color var(--transition-fast),
    border-color var(--transition-fast);
  width: 100%;
}
.btn--social:hover {
  background: var(--bg-hover);
  border-color: var(--border-active);
}
.btn--social:active { transform: scale(0.98); }

.social-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}


/* ─── AUTH FOOTER ───────────────────────────*/

.auth-footer {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-xl) 0 var(--space-lg);
  margin-top: auto;
}

.auth-footer__text {
  font-size: var(--text-sm);
  color: var(--text-secondary);
}

.auth-link {
  color: var(--text-primary);
  font-weight: var(--font-semi);
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 3px;
}
.auth-link:hover { opacity: 0.8; }

.auth-terms {
  font-size: var(--text-xs);
  color: var(--text-muted);
  text-align: center;
  line-height: var(--leading-loose);
  max-width: 280px;
}
.auth-terms a {
  color: var(--text-secondary);
  text-decoration: underline;
  text-underline-offset: 2px;
}


/* ─── REFERRAL BADGE ────────────────────────*/

.referral-badge {
  display: none;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: rgba(22, 163, 74, 0.08);
  border: 1px solid rgba(22, 163, 74, 0.2);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-md);
}
.referral-badge.is-visible { display: flex; }
.referral-badge__icon { font-size: 18px; }
.referral-badge__text {
  font-size: var(--text-sm);
  color: var(--text-secondary);
}
.referral-badge__name {
  font-weight: var(--font-semi);
  color: var(--text-primary);
}


/* ─── REFERRAL TOGGLE ROW ───────────────────*/

.referral-toggle-row {
  cursor: pointer;
  margin-top: -4px;
}

.referral-toggle-label {
  font-size: var(--text-sm);
  color: var(--text-muted);
}

.referral-chevron {
  color: var(--text-muted);
  margin-left: 4px;
  transition: transform var(--transition-fast);
  flex-shrink: 0;
}
.referral-chevron.is-open {
  transform: rotate(180deg);
}

.referral-input-group {
  display: none;
}
.referral-input-group.is-visible {
  display: flex;
}

.referral-code-input {
  text-transform: uppercase;
}


/* ─── ERROR / ALERT BOXES ───────────────────*/

.auth-error-box {
  display: none;
  margin-bottom: var(--space-md);
}
.auth-error-box.is-visible { display: flex; }


/* ─── OTP SCREEN ────────────────────────────*/

.otp-inputs {
  display: flex;
  gap: var(--space-sm);
  justify-content: center;
}

.otp-input {
  width: 52px;
  height: 60px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: var(--text-xl);
  font-weight: var(--font-semi);
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  caret-color: var(--text-primary);
  transition: border-color var(--transition-fast);
}
.otp-input:focus {
  border-color: var(--border-active);
  background: var(--bg-elevated);
}
.otp-input.is-filled { border-color: var(--border-active); }
.otp-input.is-error {
  border-color: var(--danger);
  animation: pinShake 400ms ease;
}

.otp-resend {
  text-align: center;
  font-size: var(--text-sm);
  color: var(--text-muted);
}

.otp-timer {
  font-family: var(--font-mono);
  font-weight: var(--font-semi);
  color: var(--text-secondary);
}

.otp-resend-btn {
  color: var(--text-primary);
  font-weight: var(--font-semi);
  cursor: pointer;
  border: none;
  background: none;
  font-size: var(--text-sm);
  display: none;
}
.otp-resend-btn.is-visible { display: inline; }


/* ─── ONBOARDING ────────────────────────────*/

.onboarding-page {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  padding: var(--space-lg) var(--page-padding-x);
  max-width: var(--max-content-width);
  margin: 0 auto;
}

.onboarding-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) 0;
}

.onboarding-skip {
  font-size: var(--text-sm);
  color: var(--text-muted);
  cursor: pointer;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast);
}
.onboarding-skip:hover { color: var(--text-primary); }

.onboarding-body {
  flex: 1;
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-xl) 0;
  gap: var(--space-lg);
}
.onboarding-body.is-active {
  display: flex;
}

.onboarding-illustration {
  width: 180px;
  height: 180px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 72px;
  animation: fadeInUp 400ms ease forwards;
}

.onboarding-title {
  font-size: var(--text-2xl);
  font-weight: var(--font-bold);
  color: var(--text-primary);
  line-height: var(--leading-tight);
  max-width: 300px;
}

.onboarding-title--pin {
  margin-bottom: var(--space-xs);
}

.onboarding-desc {
  font-size: var(--text-base);
  color: var(--text-secondary);
  line-height: var(--leading-loose);
  max-width: 300px;
}

.onboarding-desc--pin {
  margin-bottom: var(--space-xl);
}

.onboarding-footer {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  padding-bottom: var(--space-xl);
}

.onboarding-steps {
  display: flex;
  justify-content: center;
  gap: var(--space-xs);
}


/* ─── SERVICES PREVIEW (step 1) ─────────────*/

.services-preview {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  justify-content: center;
}

.service-preview-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.service-preview-label {
  font-size: 10px;
  color: var(--text-muted);
}


/* ─── AI CHAT PREVIEW (step 2) ──────────────*/

.chat-preview {
  width: 100%;
  text-align: left;
  padding: var(--space-md);
}

.chat-preview__messages {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.chat-preview__row {
  display: flex;
}

.chat-preview__row--user {
  justify-content: flex-end;
}

.chat-preview__row--ai {
  align-items: flex-start;
  gap: 8px;
}

.chat-preview__ai-avatar {
  font-size: 20px;
  flex-shrink: 0;
}

.chat-bubble {
  padding: 8px 12px;
  font-size: var(--text-sm);
  max-width: 220px;
}

.chat-bubble--user {
  background: var(--bg-elevated);
  border: 1px solid var(--border-soft);
  border-radius: 12px 12px 2px 12px;
}

.chat-bubble--ai {
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  border-radius: 2px 12px 12px 12px;
}


/* ─── PIN SETUP (step 3) ────────────────────*/

.pin-setup-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
  width: 100%;
}

.pin-setup-section.is-hidden {
  display: none;
}

.pin-setup-label {
  font-size: var(--text-sm);
  color: var(--text-secondary);
}

.pin-setup-grid {
  width: 100%;
  max-width: 300px;
  margin: 0 auto;
}

.pin-confirm-section {
  display: none;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
  width: 100%;
}
.pin-confirm-section.is-active {
  display: flex;
}


/* ─── ONBOARDING BONUS BADGE ────────────────*/

.onboarding-bonus {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: rgba(22, 163, 74, 0.08);
  border: 1px solid rgba(22, 163, 74, 0.2);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  color: var(--success);
  font-weight: var(--font-semi);
}


/* ─── FORGOT PASSWORD ───────────────────────*/

.forgot-step {
  display: none;
  flex-direction: column;
  flex: 1;
}
.forgot-step.is-active {
  display: flex;
}

.reset-success {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-xl) 0;
  text-align: center;
  flex: 1;
  justify-content: center;
}

.reset-success__icon {
  font-size: 64px;
  animation: bounceIn 500ms ease forwards;
}

.reset-success__title {
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  color: var(--text-primary);
}

.reset-success__text {
  font-size: var(--text-base);
  color: var(--text-secondary);
  max-width: 280px;
  line-height: var(--leading-loose);
}