/* ============================================================
   ONBOARDING TOUR
   Guided tour overlay, spotlight, and step tooltip
   Uses design system tokens from /variables.css
   ============================================================ */

/* Z-index scale:
   Tooltips: 10000 (existing)
   Toast: 10001 (existing)
   Onboarding overlay: 10003
   Onboarding highlighted element: 10004
   Onboarding tooltip: 10005
*/

/* ============================================================
   OVERLAY
   ============================================================ */

.onboarding-overlay {
  position: fixed;
  inset: 0;
  z-index: 10003;
  background: var(--onboarding-backdrop);
  pointer-events: auto;
}

/* Full-overlay variant: centers tooltip via flexbox */
.onboarding-overlay--centered {
  display: flex;
  justify-content: center;
  align-items: center;
}

/* ============================================================
   HIGHLIGHTED ELEMENT
   ============================================================ */

.onboarding-highlight {
  border-radius: var(--radius-sm);
  box-shadow: 0 0 0 9999px var(--onboarding-backdrop);
  animation: onboardingPulse 2s ease-in-out infinite;
}

/* Transparent overlay for spotlight steps - box-shadow on target provides darkening */
.onboarding-overlay--spotlight {
  background: transparent;
}

@keyframes onboardingPulse {
  0%, 100% {
    box-shadow: 0 0 0 9999px var(--onboarding-backdrop), 0 0 0 4px var(--color-primary-200);
  }
  50% {
    box-shadow: 0 0 0 9999px var(--onboarding-backdrop), 0 0 0 8px var(--color-primary-100);
  }
}

/* ============================================================
   STEP TOOLTIP
   ============================================================ */

.onboarding-tooltip {
  position: fixed;
  z-index: 10005;
  width: 340px;
  max-width: calc(100vw - var(--space-8));
  background: var(--color-bg-primary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  animation: tourFadeIn var(--duration-moderate) var(--ease-out);
  pointer-events: auto;
}

/* Centered variant for full-overlay welcome step */
.onboarding-tooltip--centered {
  position: relative;
  top: auto;
  left: auto;
}

.onboarding-tooltip.onboarding-tooltip--centered {
  animation: tourFadeIn var(--duration-moderate) var(--ease-out);
}

@keyframes tourFadeIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Tooltip header */
.onboarding-tooltip-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-border);
}

.onboarding-tooltip-title {
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  color: var(--color-text-primary);
  margin: 0;
}

.onboarding-step-counter {
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
  white-space: nowrap;
  margin-left: var(--space-2);
}

.onboarding-close-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border: none;
  background: none;
  cursor: pointer;
  color: var(--color-text-tertiary);
  border-radius: var(--radius-sm);
  padding: 0;
  margin-left: var(--space-2);
  flex-shrink: 0;
  transition: color var(--duration-fast) var(--ease-out),
              background-color var(--duration-fast) var(--ease-out);
}

.onboarding-close-btn:hover {
  color: var(--color-text-primary);
  background: var(--color-bg-tertiary);
}

.onboarding-close-btn:focus-visible {
  outline: none;
  box-shadow: var(--shadow-focus);
}

/* Tooltip body */
.onboarding-tooltip-body {
  padding: var(--space-3) var(--space-4);
}

.onboarding-tooltip-description {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
  margin: 0;
}

/* Tooltip footer with navigation */
.onboarding-tooltip-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-4);
  border-top: 1px solid var(--color-border);
  gap: var(--space-2);
}

.onboarding-nav-left {
  display: flex;
  gap: var(--space-2);
}

.onboarding-nav-right {
  display: flex;
  gap: var(--space-2);
}

/* ============================================================
   ARIA LIVE REGION (visually hidden)
   ============================================================ */

.onboarding-live-region {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ============================================================
   ACCESSIBILITY
   ============================================================ */

@media (prefers-reduced-motion: reduce) {
  .onboarding-tooltip,
  .onboarding-tooltip.onboarding-tooltip--centered {
    animation: none;
  }

  .onboarding-highlight {
    animation: none;
    box-shadow: 0 0 0 9999px var(--onboarding-backdrop), 0 0 0 4px var(--color-primary-200);
  }
}

/* ============================================================
   PRINT
   ============================================================ */

@media print {
  .onboarding-overlay,
  .onboarding-tooltip,
  .onboarding-highlight,
  .onboarding-live-region {
    display: none !important;
  }
}

/* ============================================================
   RESPONSIVE - Mobile bottom-anchored tooltip
   ============================================================ */

@media (max-width: 768px) {
  .onboarding-tooltip {
    position: fixed;
    bottom: var(--space-4);
    left: var(--space-4);
    right: var(--space-4);
    width: auto;
    max-width: none;
    top: auto !important;
  }

  .onboarding-overlay--centered .onboarding-tooltip--centered {
    position: relative !important;
    top: auto !important;
    left: auto !important;
    right: auto !important;
    bottom: auto !important;
    width: auto;
    max-width: calc(100vw - var(--space-8));
  }
}