/* ==========================================================================
   Whyni Wood - catalogue / category pages
   Structure informed by the 21st "Ecommerce Category Page" pattern
   (filter panel, removable chips, aria-live result count, empty state),
   rebuilt in plain HTML and CSS with no framework.
   ========================================================================== */

.cat-head { padding-block: var(--sp-xl) var(--sp-lg); }
.cat-head h1 { margin-bottom: var(--sp-xs); }
.cat-head .lede { max-width: 60ch; }

.cat-layout {
  display: grid;
  grid-template-columns: 236px 1fr;
  gap: var(--sp-2xl);
  align-items: start;
  padding-bottom: var(--sp-3xl);
}

/* ---- Filter panel ---- */
.filters {
  position: sticky;
  top: 100px;
  padding: var(--sp-lg);
  background: var(--clr-white);
  border: 1px solid rgba(44, 74, 80, 0.18);
  border-radius: var(--r-md);
}
.filters h2 {
  font-family: var(--font-body);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--clr-muted);
  margin-bottom: var(--sp-md);
}
.filter-group { margin-bottom: var(--sp-lg); }
.filter-group:last-of-type { margin-bottom: 0; }
.filter-group legend {
  padding: 0;
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--clr-muted);
  margin-bottom: var(--sp-xs);
}
.filter-group fieldset { border: 0; padding: 0; margin: 0; }

.check {
  display: flex;
  align-items: center;
  gap: var(--sp-xs);
  min-height: 40px;
  font-size: var(--fs-sm);
  cursor: pointer;
}
.check input {
  width: 18px; height: 18px;
  accent-color: var(--clr-amber-dk);
  cursor: pointer;
  flex-shrink: 0;
}
.check__count { margin-left: auto; font-size: var(--fs-xs); color: var(--clr-muted); }

/* ---- Toolbar: count, chips, sort ---- */
.cat-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--sp-sm);
  padding-bottom: var(--sp-md);
  margin-bottom: var(--sp-lg);
  border-bottom: 1px solid rgba(44, 74, 80, 0.2);
}
.cat-count { font-size: var(--fs-sm); color: var(--clr-muted); }
.cat-count strong { color: var(--clr-bark); font-weight: 600; }

.chips { display: flex; flex-wrap: wrap; gap: var(--sp-2xs); }
.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 34px;
  padding: 4px 6px 4px 12px;
  font-family: inherit;
  font-size: var(--fs-xs);
  font-weight: 600;
  color: var(--clr-walnut);
  background: var(--clr-sand);
  border: 1px solid rgba(44, 74, 80, 0.28);
  border-radius: 999px;
  cursor: pointer;
}
.chip:hover { background: #cdd7d6; }
.chip::after {
  content: "\00d7";
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px; height: 20px;
  font-size: 15px;
  line-height: 1;
  border-radius: 50%;
  background: rgba(1, 24, 29, 0.1);
}

.sort { margin-left: auto; display: flex; align-items: center; gap: var(--sp-xs); }
.sort label { font-size: var(--fs-xs); letter-spacing: 0.08em; text-transform: uppercase; color: var(--clr-muted); }
.sort select {
  min-height: 42px;
  padding: 0 var(--sp-sm);
  font-family: inherit;
  font-size: var(--fs-sm);
  color: var(--clr-walnut);
  background: var(--clr-white);
  border: 1.5px solid rgba(44, 74, 80, 0.35);
  border-radius: var(--r-sm);
}

/* ---- Empty state ---- */
.empty {
  display: none;
  padding: var(--sp-2xl) var(--sp-lg);
  text-align: center;
  background: var(--clr-white);
  border: 1px dashed rgba(44, 74, 80, 0.4);
  border-radius: var(--r-md);
}
.empty.is-shown { display: block; }
.empty h3 { margin-bottom: var(--sp-xs); }
.empty p { color: var(--clr-muted); font-size: var(--fs-sm); margin-bottom: var(--sp-md); }

/* Hidden cards when filtered out */
.card[hidden] { display: none; }

/* ---- Mobile filter toggle ---- */
.filter-toggle { display: none; }

@media (max-width: 880px) {
  .cat-layout { grid-template-columns: 1fr; gap: var(--sp-lg); }
  .filters {
    position: static;
    display: none;
  }
  .filters.is-open { display: block; }
  .filter-toggle {
    display: inline-flex;
    align-items: center;
    gap: var(--sp-xs);
    min-height: 46px;
    padding: var(--sp-xs) var(--sp-md);
    font-family: inherit;
    font-size: var(--fs-sm);
    font-weight: 600;
    color: var(--clr-bark);
    background: var(--clr-white);
    border: 1.5px solid var(--clr-oak);
    border-radius: var(--r-sm);
    cursor: pointer;
  }
  .sort { margin-left: 0; width: 100%; }
  .sort select { flex: 1; }
}

/* --------------------------------------------------------------------------
   Filter panel, upgraded
   Header with live count, collapsible groups, timber swatches, counts that
   update as you filter, and zero-count options disabled rather than hidden.
   -------------------------------------------------------------------------- */
.filters__head {
  display: flex;
  align-items: center;
  gap: var(--sp-xs);
  padding-bottom: var(--sp-md);
  margin-bottom: var(--sp-md);
  border-bottom: 1px solid rgba(44, 74, 80, 0.2);
}
.filters__head h2 { margin: 0; }
.filters__count {
  display: inline-grid;
  place-items: center;
  min-width: 20px; height: 20px;
  padding: 0 6px;
  font-size: 11px;
  font-weight: 700;
  color: var(--clr-linen);
  background: var(--clr-amber-dk);
  border-radius: 999px;
}
.filters__clear {
  margin-left: auto;
  padding: 0;
  font-family: inherit;
  font-size: var(--fs-xs);
  font-weight: 600;
  color: #9b2c1f;
  background: none;
  border: 0;
  cursor: pointer;
}
.filters__clear:hover { text-decoration: underline; }
.filters__clear[hidden] { display: none; }

/* Applied filter chips, inside the panel */
.applied {
  margin-bottom: var(--sp-md);
  padding-bottom: var(--sp-md);
  border-bottom: 1px solid rgba(44, 74, 80, 0.2);
}
.applied[hidden] { display: none; }
.applied h3 {
  font-family: var(--font-body);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--clr-muted);
  margin-bottom: var(--sp-xs);
}

/* Collapsible groups */
.filter-group summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--sp-xs);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--clr-muted);
  cursor: pointer;
  list-style: none;
}
.filter-group summary::-webkit-details-marker { display: none; }
.filter-group summary::after {
  content: "";
  width: 8px; height: 8px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(-135deg);
  transition: transform var(--dur) var(--ease);
}
.filter-group[open] summary::after { transform: rotate(45deg); }

/* Timber swatches */
.swatch-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(38px, 1fr));
  gap: var(--sp-xs);
  padding-block: var(--sp-xs);
}
.swatch-btn {
  position: relative;
  aspect-ratio: 1;
  padding: 0;
  border: 2px solid transparent;
  border-radius: var(--r-sm);
  cursor: pointer;
  overflow: hidden;
  background: transparent;
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.swatch-btn i {
  display: block;
  width: 100%; height: 100%;
  border-radius: 2px;
  border: 1px solid rgba(1,24,29,0.18);
}
.swatch-btn:hover { transform: translateY(-2px); }
.swatch-btn[aria-pressed="true"] { border-color: var(--clr-amber-dk); }
.swatch-btn[disabled] { opacity: 0.3; cursor: not-allowed; transform: none; }
.swatch-btn:focus-visible { outline: 2px solid var(--clr-amber); outline-offset: 2px; }

.sw-oak       { background: linear-gradient(135deg, #d9b887, #b8935f); }  /* real timber, not brand */
.sw-ash       { background: linear-gradient(135deg, #e8d4b4, #cbb088); }
.sw-kiaat     { background: linear-gradient(135deg, #b5764c, #8a5433); }
.sw-teak      { background: linear-gradient(135deg, #a97348, #7d4f2a); }
.sw-blackwood { background: linear-gradient(135deg, #5a3a22, #34210f); }

/* Zero-count rows read as unavailable, not missing */
.check.is-empty { opacity: 0.4; cursor: not-allowed; }
.check.is-empty input { cursor: not-allowed; }

/* --------------------------------------------------------------------------
   View switcher
   Three densities plus a list view. The choice is remembered per visitor.
   -------------------------------------------------------------------------- */
.viewswitch {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-left: auto;
}
.viewswitch__btn {
  display: grid;
  place-items: center;
  width: 38px; height: 38px;
  padding: 0;
  color: var(--clr-muted);
  background: none;
  border: 1px solid transparent;
  border-radius: var(--r-sm);
  cursor: pointer;
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease);
}
.viewswitch__btn:hover { color: var(--clr-bark); background: rgba(44,74,80,0.06); }
.viewswitch__btn[aria-pressed="true"] {
  color: var(--clr-bark);
  background: rgba(44,74,80,0.09);
}
.viewswitch__btn svg { width: 17px; height: 17px; fill: currentColor; }
.viewswitch__btn:focus-visible { outline: 2px solid var(--clr-amber); outline-offset: 2px; }

/* Grid densities */
#catGrid.view-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
#catGrid.view-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
#catGrid.view-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

/* List view: image left, detail right */
#catGrid.view-list { grid-template-columns: 1fr; gap: 0; }
#catGrid.view-list .card {
  display: grid;
  grid-template-columns: minmax(140px, 220px) 1fr;
  gap: var(--sp-lg);
  align-items: center;
  border: 0;
  border-bottom: 1px solid rgba(44, 74, 80, 0.16);
  border-radius: 0;
  padding-block: var(--sp-lg);
}
#catGrid.view-list .card:hover { transform: none; box-shadow: none; }
#catGrid.view-list .card__media {
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  background: var(--clr-white);
  padding: var(--sp-sm);
}
#catGrid.view-list .card__media img { object-fit: contain; }
#catGrid.view-list .card__body { padding: 0; }
#catGrid.view-list .card__text { max-width: 60ch; }
#catGrid.view-list .card__foot { border-top: 0; padding-top: var(--sp-sm); }

@media (max-width: 1100px) {
  #catGrid.view-4 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 860px) {
  .viewswitch { display: none; }   /* one sensible layout on phones */
  #catGrid.view-2,
  #catGrid.view-3,
  #catGrid.view-4,
  #catGrid.view-list { grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr)); }
  #catGrid.view-list .card { grid-template-columns: 1fr; }
}