/* ============================================
   YUGM AI - Auth Pages
   ============================================ */

.auth-page {
  position: relative;
  min-height: 100vh;
  padding: calc(var(--header-height) + var(--space-10)) var(--space-6) var(--space-10);
}

.auth-page .hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(127, 182, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(127, 182, 255, 0.04) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(circle at center, rgba(0, 0, 0, 0.88), transparent 90%);
}

.auth-shell {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: var(--space-6);
  align-items: center;
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
}

.auth-panel,
.auth-card {
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius-2xl);
  background: linear-gradient(180deg, rgba(16, 27, 44, 0.9), rgba(8, 15, 26, 0.96));
  box-shadow: var(--shadow-lg);
}

.auth-panel {
  padding: var(--space-8);
}

.auth-panel-title {
  max-width: 13ch;
  margin-bottom: var(--space-4);
  color: var(--color-text-white);
  font-size: clamp(2rem, 3vw, 3.25rem);
  line-height: 1.05;
}

.auth-panel-copy {
  max-width: 48ch;
  margin-bottom: var(--space-6);
  color: var(--color-text-white-secondary);
  font-size: var(--text-base);
}

.auth-stat-grid,
.auth-benefit-list {
  display: grid;
  gap: var(--space-4);
}

.auth-stat-card,
.auth-benefit-item {
  padding: var(--space-5);
  border-radius: var(--radius-xl);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(178, 191, 212, 0.08);
}

.auth-stat-card strong,
.auth-benefit-item strong {
  display: block;
  margin-bottom: var(--space-2);
  color: var(--color-text-white);
  font-family: var(--font-display);
  font-size: var(--text-lg);
}

.auth-stat-card span,
.auth-benefit-item span {
  color: var(--color-text-white-secondary);
  font-size: var(--text-sm);
}

.auth-card {
  width: 100%;
  max-width: 520px;
  padding: var(--space-8);
  margin-left: auto;
}

.auth-card-wide {
  max-width: 620px;
}

.auth-header {
  text-align: center;
  margin-bottom: var(--space-7);
}

.auth-header .logo-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
}

.auth-header .logo-link img {
  width: auto;
  height: 40px;
}

.auth-header .logo-link span {
  color: var(--color-text-white);
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: var(--font-extrabold);
}

.auth-title {
  margin-bottom: var(--space-2);
  color: var(--color-text-white);
  font-size: var(--text-2xl);
}

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

.account-type-selector {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}

.account-type-card {
  cursor: pointer;
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(178, 191, 212, 0.1);
  background: rgba(255, 255, 255, 0.03);
  text-align: center;
  transition: border-color var(--transition-base), transform var(--transition-base), background-color var(--transition-base);
}

.account-type-card:hover {
  transform: translateY(-2px);
  border-color: rgba(127, 182, 255, 0.2);
}

.account-type-card.selected {
  background: rgba(32, 131, 255, 0.1);
  border-color: rgba(127, 182, 255, 0.34);
}

.account-type-card input {
  display: none;
}

.account-type-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  margin: 0 auto var(--space-2);
  border-radius: var(--radius-lg);
  background: rgba(32, 131, 255, 0.14);
  color: var(--color-accent-soft);
}

.account-type-label {
  color: var(--color-text-white-secondary);
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.account-type-card.selected .account-type-label {
  color: white;
}

.auth-form {
  display: flex;
  flex-direction: column;
}

.auth-submit {
  width: 100%;
  margin-top: var(--space-3);
}

.auth-divider {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin: var(--space-6) 0;
}

.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: rgba(178, 191, 212, 0.12);
}

.auth-divider span {
  color: var(--color-text-white-muted);
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.btn-google {
  width: 100%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  min-height: 48px;
  padding: 0.9rem 1rem;
  border-radius: var(--radius-full);
  border: 1px solid rgba(178, 191, 212, 0.12);
  background: rgba(255, 255, 255, 0.03);
  color: var(--color-text-white);
  font-weight: var(--font-semibold);
  transition: transform var(--transition-fast), border-color var(--transition-fast), background-color var(--transition-fast);
}

.btn-google:hover {
  transform: translateY(-1px);
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(178, 191, 212, 0.2);
}

.auth-footer {
  margin-top: var(--space-6);
  padding-top: var(--space-5);
  border-top: 1px solid rgba(178, 191, 212, 0.12);
  text-align: center;
}

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

.auth-footer a,
.forgot-link {
  color: var(--color-accent-soft);
  font-weight: var(--font-semibold);
}

.auth-footer a:hover,
.forgot-link:hover {
  color: white;
}

.forgot-link {
  display: inline-block;
  margin-top: calc(var(--space-2) * -1);
  margin-bottom: var(--space-4);
  font-size: var(--text-sm);
  text-align: right;
}

.password-rules {
  display: grid;
  gap: var(--space-1);
  margin-top: var(--space-2);
}

.password-rule {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-text-white-muted);
  font-size: var(--text-xs);
}

.password-rule svg {
  flex-shrink: 0;
}

.password-rule.valid {
  color: #8df0b8;
}

.auth-optional {
  color: var(--color-text-white-muted);
  font-weight: var(--font-regular);
}

@media (max-width: 1024px) {
  .auth-shell {
    grid-template-columns: 1fr;
  }

  .auth-card,
  .auth-card-wide {
    max-width: 100%;
    margin-left: 0;
  }
}

@media (max-width: 768px) {
  .auth-page {
    padding: calc(var(--header-height) + var(--space-8)) var(--space-4) var(--space-8);
  }

  .auth-panel,
  .auth-card {
    padding: var(--space-6);
    border-radius: var(--radius-xl);
  }

  .account-type-selector {
    grid-template-columns: 1fr;
  }
}