/* ============================================================================
   BK Collection (PLP) — header, toolbar, grid, Refine slide-over
   ========================================================================== */

.bk-collection {
  background-color: rgb(var(--color-background));
  color: rgb(var(--color-foreground));
  padding-block: clamp(2.5rem, 5vw, 4.5rem) var(--bk-section-pad);
}

/* ---- Header --------------------------------------------------------------- */
.bk-collection__header {
  display: flex;
  flex-direction: column;
  gap: var(--bk-space-3);
  max-width: 40ch;
  margin-bottom: var(--bk-space-16);
}
.bk-collection__title { margin: 0; }
.bk-collection__desc { color: var(--bk-ink-soft); margin-top: var(--bk-space-2); }

/* ---- Toolbar -------------------------------------------------------------- */
.bk-collection__toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--bk-space-4);
  padding-bottom: var(--bk-space-4);
  border-bottom: 1px solid var(--bk-hairline);
  margin-bottom: var(--bk-space-12);
}
.bk-collection__count { color: var(--bk-ink-soft); margin: 0; }
.bk-collection__tools { display: flex; align-items: center; gap: var(--bk-space-6); }

.bk-collection__refine-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--bk-font-body);
  font-size: var(--bk-fs-eyebrow);
  letter-spacing: var(--bk-tracking-eyebrow);
  text-transform: uppercase;
  color: var(--bk-ink);
  background: none;
  border: 0;
  cursor: pointer;
  padding: 0;
}
.bk-collection__refine-icon {
  width: 14px; height: 8px;
  background:
    linear-gradient(var(--bk-ink), var(--bk-ink)) 0 0 / 14px 1px no-repeat,
    linear-gradient(var(--bk-ink), var(--bk-ink)) 0 100% / 9px 1px no-repeat;
}

.bk-collection__sort { display: inline-flex; align-items: center; gap: 0.5rem; }
.bk-collection__sort select {
  font-family: var(--bk-font-body);
  font-size: var(--bk-fs-body);
  color: var(--bk-ink);
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--bk-hairline);
  padding: 0.25rem 1.25rem 0.25rem 0;
  cursor: pointer;
}

/* ---- Grid ----------------------------------------------------------------- */
.bk-collection__grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--bk-space-8) var(--bk-grid-gutter);
}
@media screen and (min-width: 750px) {
  .bk-collection__grid { grid-template-columns: repeat(2, 1fr); }
}
@media screen and (min-width: 990px) {
  .bk-collection__grid {
    grid-template-columns: repeat(var(--bk-cols, 3), 1fr);
    row-gap: var(--bk-space-12);
  }
}

/* ---- Pagination ----------------------------------------------------------- */
.bk-collection__pagination { margin-top: var(--bk-space-16); }
.bk-collection__pagination .pagination__list {
  display: flex;
  justify-content: center;
  gap: var(--bk-space-4);
  list-style: none;
  padding: 0;
  font-family: var(--bk-font-body);
}
.bk-collection__pagination a,
.bk-collection__pagination span { color: var(--bk-ink-soft); text-decoration: none; }
.bk-collection__pagination [aria-current] { color: var(--bk-ink); border-bottom: 1px solid var(--bk-brass); }

/* ---- Empty ---------------------------------------------------------------- */
.bk-collection__empty {
  padding: var(--bk-space-24) 0;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: var(--bk-space-4);
  align-items: center;
}

/* ============================================================================
   REFINE — slide-over
   ========================================================================== */
.bk-refine { position: fixed; inset: 0; z-index: 60; }
.bk-refine[hidden] { display: none; }
.bk-refine__scrim {
  position: absolute;
  inset: 0;
  background: rgba(42, 42, 34, 0.4);
  opacity: 0;
  transition: opacity var(--bk-dur-base) var(--bk-ease);
}
.bk-refine__panel {
  position: absolute;
  top: 0; right: 0;
  height: 100%;
  width: min(420px, 90vw);
  background: var(--bk-bg-cream);
  transform: translateX(100%);
  transition: transform var(--bk-dur-base) var(--bk-ease);
  display: flex;
  flex-direction: column;
  padding: var(--bk-space-6);
  overflow-y: auto;
}
.bk-refine.is-open .bk-refine__scrim { opacity: 1; }
.bk-refine.is-open .bk-refine__panel { transform: none; }

.bk-refine__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: var(--bk-space-4);
  border-bottom: 1px solid var(--bk-hairline);
}
.bk-refine__close {
  background: none; border: 0; cursor: pointer;
  font-size: 1.75rem; line-height: 1; color: var(--bk-ink-soft);
}

.bk-refine__groups { flex: 1; padding-block: var(--bk-space-4); }
.bk-refine__group { border: 0; margin: 0 0 var(--bk-space-8); padding: 0; }
.bk-refine__group legend { color: var(--bk-ink-soft); padding: 0 0 var(--bk-space-3); }
.bk-refine__list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: var(--bk-space-3); }

.bk-refine__opt {
  display: flex;
  align-items: center;
  gap: var(--bk-space-3);
  font-family: var(--bk-font-body);
  font-size: var(--bk-fs-body);
  color: var(--bk-ink);
  cursor: pointer;
}
.bk-refine__opt input { accent-color: var(--bk-olive); width: 1rem; height: 1rem; }
.bk-refine__swatch {
  width: 1.5rem; height: 1.5rem;
  border-radius: var(--bk-radius-soft);
  border: 1px solid var(--bk-hairline);
  background-size: cover;
  background-position: center;
}
.bk-refine__opt-label { display: inline-flex; gap: 0.4rem; align-items: baseline; }
.bk-refine__opt-count { color: var(--bk-ink-soft); font-size: var(--bk-fs-caption); }

.bk-refine__actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--bk-space-4);
  padding-top: var(--bk-space-4);
  border-top: 1px solid var(--bk-hairline);
}
.bk-refine__clear {
  font-family: var(--bk-font-body);
  font-size: var(--bk-fs-body);
  color: var(--bk-ink);
  text-decoration: none;
  background-image: linear-gradient(var(--bk-brass), var(--bk-brass));
  background-repeat: no-repeat;
  background-position: 0 100%;
  background-size: 0% 1px;
  transition: background-size var(--bk-dur-fast) var(--bk-ease);
}
.bk-refine__clear:hover { background-size: 100% 1px; }
.bk-refine__apply {
  font-family: var(--bk-font-body);
  font-size: var(--bk-fs-body);
  font-weight: 500;
  letter-spacing: var(--bk-tracking-button);
  color: var(--bk-on-olive);
  background: var(--bk-olive);
  border: 1px solid var(--bk-brass);
  border-radius: var(--bk-radius-soft);
  padding: 0.85rem 2rem;
  cursor: pointer;
  transition: background-color var(--bk-dur-fast) var(--bk-ease);
}
.bk-refine__apply:hover { background: var(--bk-olive-deep); }