/* ========================================
   Authentication Pages
   ======================================== */

/* Auth layout */
.auth-layout {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #f9fafb;
  padding: var(--spacing-lg);
}

.auth-container {
  width: 100%;
  max-width: 28rem;
}

/* Auth card */
.auth-card {
  background-color: white;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
}

.auth-card__header {
  padding: var(--spacing-2xl) var(--spacing-xl) var(--spacing-lg);
  text-align: center;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
}

.auth-card__logo {
  width: 4rem;
  height: 4rem;
  margin: 0 auto var(--spacing-md);
}

.auth-card__title {
  margin: 0;
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: white;
}

.auth-card__subtitle {
  margin-top: var(--spacing-xs);
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.9);
}

.auth-card__body {
  padding: var(--spacing-xl);
}

.auth-card__footer {
  padding: var(--spacing-lg) var(--spacing-xl);
  background-color: var(--color-gray-50);
  border-top: 1px solid var(--color-gray-200);
  text-align: center;
  font-size: var(--font-size-sm);
}

/* Auth form */
.auth-form .form-group:last-of-type {
  margin-bottom: var(--spacing-lg);
}

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

.auth-form__divider {
  display: flex;
  align-items: center;
  margin: var(--spacing-lg) 0;
  color: var(--color-gray-500);
  font-size: var(--font-size-sm);
}

.auth-form__divider::before,
.auth-form__divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background-color: var(--color-gray-300);
}

.auth-form__divider::before {
  margin-right: var(--spacing-md);
}

.auth-form__divider::after {
  margin-left: var(--spacing-md);
}

/* Auth links */
.auth-links {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-md);
  font-size: var(--font-size-sm);
}

.auth-link {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: var(--font-weight-medium);
  transition: opacity var(--transition-fast);
}

.auth-link:hover {
  opacity: 0.7;
  text-decoration: none;
}

/* Remember me checkbox */
.auth-remember {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

/* Social auth buttons */
.auth-social {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.auth-social__button {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-lg);
  background-color: white;
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-gray-700);
  cursor: pointer;
  transition: background-color var(--transition-fast), border-color var(--transition-fast);
}

.auth-social__button:hover {
  background-color: var(--color-gray-50);
  border-color: var(--color-gray-400);
}

.auth-social__icon {
  width: 1.25rem;
  height: 1.25rem;
}

/* Auth alerts (override default margin) */
.auth-card .alert {
  margin-bottom: var(--spacing-lg);
}

.auth-card .alert:first-child {
  border-radius: 0;
  margin-bottom: var(--spacing-xl);
}

/* Password strength indicator */
.password-strength {
  margin-top: var(--spacing-xs);
}

.password-strength__bar {
  height: 0.25rem;
  background-color: var(--color-gray-200);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.password-strength__fill {
  height: 100%;
  transition: width var(--transition-base), background-color var(--transition-base);
}

.password-strength__fill--weak {
  width: 33%;
  background-color: var(--color-error);
}

.password-strength__fill--medium {
  width: 66%;
  background-color: var(--color-warning);
}

.password-strength__fill--strong {
  width: 100%;
  background-color: var(--color-success);
}

.password-strength__text {
  margin-top: var(--spacing-xs);
  font-size: var(--font-size-xs);
  color: var(--color-gray-500);
}

/* Loading state for auth */
.auth-loading {
  position: relative;
}

.auth-loading::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(255, 255, 255, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
}

/* Terms Acceptance */
.terms-acceptance {
  background-color: var(--color-gray-50);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  margin: var(--spacing-lg) 0;
}

.checkbox-group {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

.form-checkbox {
  width: 1.25rem;
  height: 1.25rem;
  margin-top: 0.25rem;
  flex-shrink: 0;
  cursor: pointer;
  accent-color: #667eea;
}

.checkbox-label {
  font-size: var(--font-size-sm);
  color: var(--color-gray-700);
  line-height: 1.5;
  cursor: pointer;
}

.legal-link {
  color: #667eea;
  text-decoration: none;
  font-weight: var(--font-weight-medium);
  border-bottom: 1px solid transparent;
  transition: all var(--transition-fast);
}

.legal-link:hover {
  border-bottom-color: #667eea;
  opacity: 0.8;
}

.terms-note {
  font-size: var(--font-size-xs);
  color: var(--color-gray-600);
  background-color: #f3f0ff;
  border-left: 3px solid #667eea;
  padding: var(--spacing-sm) var(--spacing-md);
  margin: 0;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  line-height: 1.5;
}

/* Responsive adjustments */
@media (max-width: 640px) {
  .auth-layout {
    padding: var(--spacing-md);
  }

  .auth-card__header,
  .auth-card__body,
  .auth-card__footer {
    padding-left: var(--spacing-lg);
    padding-right: var(--spacing-lg);
  }

  .auth-links {
    flex-direction: column;
    gap: var(--spacing-sm);
    align-items: flex-start;
  }
}