/* ============================================
   GLASS AUTH STYLES
   Glass mode styling for Login and Register pages
   ============================================ */

/* ==========================================
   AUTH PAGE LAYOUT
   ========================================== */

.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-6);
  position: relative;
  background: var(--color-bg-primary);
}

.auth-background {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    radial-gradient(circle at 20% 30%, rgba(236, 72, 153, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(6, 182, 212, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 40% 80%, rgba(139, 92, 246, 0.15) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

/* ==========================================
   AUTH CARD
   ========================================== */

.auth-card {
  width: 100%;
  max-width: 450px;
  position: relative;
  z-index: 1;
}

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

.auth-header {
  text-align: center;
  margin-bottom: var(--space-8);
}

.auth-header h1 {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-semibold);
  margin: 0 0 var(--space-2) 0;
  color: var(--color-text-primary);
}

.auth-header p {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  margin: 0;
}

.auth-logo {
  width: var(--space-16);
  height: var(--space-16);
  margin: 0 auto var(--space-4);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--glass-gradient-primary);
  border-radius: var(--radius-card);
  color: white;
}

/* ==========================================
   AUTH FORM
   ========================================== */

.auth-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-label {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
}

.form-input {
  width: 100%;
}

.form-validation {
  font-size: var(--font-size-xs);
  color: var(--color-danger);
  margin-top: var(--space-1);
}

.validation-summary {
  background: var(--color-danger-subtle);
  border: 1px solid var(--color-danger);
  border-radius: var(--radius-control);
  padding: var(--space-4);
  margin-bottom: var(--space-6);
  color: var(--color-danger);
  font-size: var(--font-size-sm);
}

/* ==========================================
   AUTH CHECKBOX
   ========================================== */

.form-checkbox {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.form-checkbox input[type="checkbox"] {
  width: var(--space-4);
  height: var(--space-4);
  cursor: pointer;
}

.form-checkbox label {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  cursor: pointer;
}

/* ==========================================
   AUTH ACTIONS
   ========================================== */

.auth-actions {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.auth-actions .btn {
  flex: 1;
}

.auth-divider {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin: var(--space-6) 0;
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}

.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--glass-border);
}

/* ==========================================
   SOCIAL LOGIN
   ========================================== */

.social-login {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.social-button {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  padding: var(--space-3);
  background: var(--glass-bg-surface);
  backdrop-filter: var(--glass-blur-sm);
  -webkit-backdrop-filter: var(--glass-blur-sm);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-control);
  color: var(--color-text-primary);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.social-button:hover {
  background: var(--glass-bg-hover);
  border-color: var(--glass-border-strong);
  transform: translateY(-2px);
}

.social-button svg {
  width: 20px;
  height: 20px;
}

/* ==========================================
   AUTH LINKS
   ========================================== */

.auth-links {
  text-align: center;
  margin-top: var(--space-6);
  font-size: var(--font-size-sm);
}

.auth-links a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.auth-links a:hover {
  color: var(--color-accent-hover);
}

/* ==========================================
   MULTI-STEP FORM
   ========================================== */

.form-steps {
  display: flex;
  gap: var(--space-2);
  margin-bottom: var(--space-6);
}

.form-step {
  flex: 1;
  height: 4px;
  background: var(--glass-bg-surface);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.form-step.active {
  background: var(--color-accent);
}

.form-step.completed {
  background: var(--color-success);
}

/* ==========================================
   PASSWORD STRENGTH
   ========================================== */

.password-strength {
  margin-top: var(--space-2);
}

.password-strength-bar {
  height: 4px;
  background: var(--glass-bg-surface);
  border-radius: var(--radius-full);
  overflow: hidden;
  margin-bottom: var(--space-2);
}

.password-strength-fill {
  height: 100%;
  width: 0%;
  transition: all var(--transition-base);
  border-radius: var(--radius-full);
}

.password-strength-fill.weak {
  width: 33%;
  background: var(--color-danger);
}

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

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

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

/* ==========================================
   RESPONSIVE
   ========================================== */

@media (max-width: 768px) {
  .auth-card {
    max-width: 100%;
  }

  .auth-card .glass-card {
    padding: var(--space-6);
  }

  .auth-header h1 {
    font-size: var(--font-size-2xl);
  }

  .auth-actions {
    flex-direction: column;
  }
}