/* ==========================================================================
   Varp: shop page
   Filters (real checkboxes, restyled as pills), sort, result count, grid.
   ========================================================================== */

.shop__inner { display: grid; gap: clamp(1.5rem, 3vw, 3rem); align-items: start; }

/* The filters do nothing without scripts, so they are only shown when scripts run. */
.filters { display: none; }
.js .filters { display: block; }

.filters__summary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  min-block-size: 3rem;
  padding-inline: 1.25rem;
  border-radius: var(--pill);
  box-shadow: inset 0 0 0 1px var(--ink);
  font-weight: 600;
  cursor: pointer;
  list-style: none;
}
.filters__summary::-webkit-details-marker { display: none; }
.filters__summary .icon:last-child { transition: transform var(--dur-2) var(--ease-out); }
.filters__panel[open] .filters__summary .icon:last-child { transform: rotate(180deg); }
.filters__groups { display: grid; gap: 1.5rem; padding-block-start: 1.5rem; }
.filters__legend { display: block; margin-block-end: 0.6rem; font-weight: 600; }

.chips { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.chip { cursor: pointer; }
.chip__box {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  min-block-size: 2.5rem;
  padding-inline: 0.95rem;
  border-radius: var(--pill);
  box-shadow: inset 0 0 0 1px var(--line);
  font-size: var(--fs-small);
  font-weight: 500;
  white-space: nowrap;
}
/* The fill scales in from the centre, under the label. */
.chip__box::before { content: ""; position: absolute; inset: 0; z-index: -1; border-radius: inherit; background: var(--ink); transform: scale(0); transition: transform var(--dur-2) var(--ease-out); }
.chip__input:checked + .chip__box { color: var(--bg); box-shadow: none; }
.chip__input:checked + .chip__box::before { transform: none; }
.chip__input:focus-visible + .chip__box { outline: 2px solid var(--accent-ink); outline-offset: 3px; }
.chip__box .swatch__dot { inline-size: 0.9rem; block-size: 0.9rem; }
@media (hover: hover) {
  .chip:hover .chip__box { box-shadow: inset 0 0 0 1px var(--ink); }
  .chip:hover .chip__input:checked + .chip__box { box-shadow: none; }
}

/* Sort: a native select inside a pill. */
.select { position: relative; display: inline-block; inline-size: 100%; max-inline-size: 16rem; }
.select__input { inline-size: 100%; min-block-size: 2.75rem; padding-inline: 1.1rem 2.5rem; border: 0; border-radius: var(--pill); background: transparent; box-shadow: inset 0 0 0 1px var(--ink); font-weight: 500; appearance: none; -webkit-appearance: none; cursor: pointer; }
.select__input option { background: var(--bg); color: var(--ink); }
.select .icon { position: absolute; inset-block-start: 50%; inset-inline-end: 1rem; translate: 0 -50%; pointer-events: none; }

.shop__bar { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-block-size: 2.5rem; margin-block-end: 1.25rem; }
.shop__count { font-weight: 600; }
.shop__empty { padding-block: clamp(2rem, 6vw, 5rem); }

@media (min-width: 60rem) {
  .shop__inner { grid-template-columns: 15rem minmax(0, 1fr); }
  /* On wide screens the panel is a sticky column, always open (shop.js opens it and CSS hides the toggle). */
  .filters { position: sticky; inset-block-start: calc(var(--header-h) + 1.5rem); max-block-size: calc(100dvh - var(--header-h) - 3rem); overflow-y: auto; padding-inline: 3px; margin-inline: -3px; }
  .filters__summary { display: none; }
  .filters__groups { padding-block: 0.25rem 1rem; }
}

@media (min-width: 100rem) {
  .shop .grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

/* While the grid is rearranging, each card travels to its new place (shop.js names them). */
@media (prefers-reduced-motion: no-preference) {
  html.is-filtering::view-transition-group(*) { animation-duration: 0.55s; animation-timing-function: var(--ease-out); }
  html.is-filtering::view-transition-old(*):only-child { animation: card-out 0.25s var(--ease-inout) both; }
  html.is-filtering::view-transition-new(*):only-child { animation: card-in 0.5s var(--ease-out) 0.1s both; }
}
@keyframes card-out { to { opacity: 0; transform: scale(0.94); } }
@keyframes card-in { from { opacity: 0; transform: scale(0.94); } }