/* ============================================================
   Swipe Stack — touch-swipeable card stack for archive
   ============================================================ */

.swipe-stack {
  position: relative;
  width: 100%;
  min-height: 200px;
  touch-action: pan-y;
  overflow: hidden;
}

.swipe-stack__card {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  transition:
    transform var(--duration-normal) var(--ease-out),
    opacity var(--duration-normal) var(--ease-out);
  will-change: transform, opacity;
}

.swipe-stack__card--current {
  z-index: 2;
  transform: translateX(0);
  opacity: 1;
}

.swipe-stack__card--next {
  z-index: 1;
  transform: translateX(0) scale(0.95);
  opacity: 0.5;
}

.swipe-stack__card--exit-left {
  transform: translateX(-110%);
  opacity: 0;
}

.swipe-stack__card--exit-right {
  transform: translateX(110%);
  opacity: 0;
}

.swipe-stack__card--enter-left {
  transform: translateX(-30%);
  opacity: 0;
}

.swipe-stack__card--enter-right {
  transform: translateX(30%);
  opacity: 0;
}

/* Navigation arrows */
.swipe-stack__nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: var(--space-4);
  padding: 0 var(--space-2);
}

.swipe-stack__arrow {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  min-height: 44px;
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  color: var(--text-muted);
  border: none;
  background: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: color var(--duration-fast) var(--ease-out);
}

.swipe-stack__arrow:hover {
  color: var(--text-secondary);
}

.swipe-stack__arrow:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.swipe-stack__date-label {
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  color: var(--text-muted);
}