/* ==========================================================================
   Items — Item detail, provenance, valuation
   ========================================================================== */

/* --- Grailsome button pulse --- */

.btn--amber:active {
  animation: amber-pulse 0.3s var(--ease-spring);
}

@keyframes amber-pulse {
  0% { box-shadow: 0 0 0 0 rgba(232, 150, 12, 0.4); }
  70% { box-shadow: 0 0 0 12px rgba(232, 150, 12, 0); }
  100% { box-shadow: 0 0 0 0 rgba(232, 150, 12, 0); }
}

@media (prefers-reduced-motion: reduce) {
  .btn--amber:active {
    animation: none;
  }
}

/* --- Value Sparkline --- */

.sparkline {
  display: inline-block;
  vertical-align: middle;
}

.provenance-event__dot--acquired { background: var(--color-mint); }
.provenance-event__dot--authenticated { background: var(--color-electric); }
.provenance-event__dot--exhibited { background: var(--color-amber); }
.provenance-event__dot--graded { background: var(--color-red); }
.provenance-event__dot--sold { background: var(--color-ink-muted); }
.provenance-event__dot--added { background: var(--color-parch-2); }

.provenance-form__row {
  margin-top: var(--space-3);
}

.provenance-form__textarea {
  margin-top: var(--space-2);
}

.provenance-form__submit {
  margin-top: var(--space-2);
}

/* --- Lightbox enhancements --- */

.lightbox__image-wrap {
  /* We own all gestures (pinch, pan, double-tap, swipe) — let the browser do nothing */
  touch-action: none;
}

.lightbox__image {
  transition: opacity var(--duration-fast) var(--ease-out);
}

.lightbox__image--loading {
  opacity: 0.3;
}

/* --- Sparkline tooltip --- */

.sparkline-tooltip {
  position: absolute;
  bottom: 100%;
  transform: translateX(-50%);
  background: var(--color-cream-card);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 500;
  padding: var(--space-1) var(--space-2);
  border-radius: 4px;
  border: 1px solid var(--color-parch-2);
  white-space: nowrap;
  pointer-events: none;
  z-index: 10;
  box-shadow: 0 2px 4px rgba(26, 13, 8, 0.08);
}

/* --- Provenance details slide animation --- */

.provenance-timeline__add details summary {
  cursor: pointer;
  list-style: none;
}

.provenance-timeline__add details summary::-webkit-details-marker {
  display: none;
}

.provenance-form {
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  transition: max-height var(--duration-normal) var(--ease-out),
              opacity var(--duration-normal) var(--ease-out);
}

details[open] > .provenance-form {
  max-height: 300px;
  opacity: 1;
}

@media (prefers-reduced-motion: reduce) {
  .lightbox__image {
    transition: none;
  }
  .provenance-form {
    transition: none;
    max-height: none;
    opacity: 1;
  }
}