/* ═══════════════════════════════════════════
   ETERNITY THREAD — Shop Page
   ═══════════════════════════════════════════ */

.shop-hero {
  padding-block: var(--space-7) var(--space-5);
  background-color: var(--color-white);
  text-align: center;
}

.shop-hero__title {
  font-family: var(--font-display);
  font-size: var(--fs-2xl);
  font-weight: var(--fw-bold);
  letter-spacing: var(--ls-tight);
  text-transform: uppercase;
  color: var(--color-black);
  margin: 0 0 var(--space-2);
}

.shop-hero__count {
  font-family: var(--font-body);
  font-size: var(--fs-sm);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  color: var(--text-muted);
}

/* ── Layout: sidebar + grid ── */
.shop {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
  padding-bottom: var(--space-8);
}

@media (min-width: 1024px) {
  .shop {
    grid-template-columns: 260px 1fr;
    gap: var(--space-6);
  }
}

/* ── Toolbar (sort + mobile filter toggle) ── */
.shop__toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--border-light);
  margin-bottom: var(--space-5);
}

.shop__filter-toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-display);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  color: var(--color-black);
  background: none;
  border: 1px solid var(--color-black);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.shop__filter-toggle svg {
  width: 16px;
  height: 16px;
}

@media (min-width: 1024px) {
  .shop__filter-toggle {
    display: none;
  }
}

.shop__sort {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: var(--fs-sm);
}

.shop__sort label {
  color: var(--text-muted);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  font-size: var(--fs-xs);
}

.shop__sort select {
  width: auto;
  padding: var(--space-2) var(--space-4) var(--space-2) var(--space-3);
  border: 1px solid var(--border-medium);
  background-color: var(--color-white);
  color: var(--color-black);
  font-size: var(--fs-sm);
  cursor: pointer;
}

/* ── Filter Sidebar ── */
.filters {
  display: none;
  flex-direction: column;
  gap: var(--space-5);
  position: sticky;
  top: calc(var(--header-height) + var(--space-4));
  align-self: start;
  max-height: calc(100vh - var(--header-height) - var(--space-6));
  overflow-y: auto;
  padding-right: var(--space-2);
}

.filters.is-open {
  display: flex;
}

@media (min-width: 1024px) {
  .filters {
    display: flex;
  }
}

.filter-group {
  border-bottom: 1px solid var(--border-light);
  padding-bottom: var(--space-4);
}

.filter-group:last-child {
  border-bottom: none;
}

.filter-group__title {
  font-family: var(--font-display);
  font-size: var(--fs-sm);
  font-weight: var(--fw-bold);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  color: var(--color-black);
  margin: 0 0 var(--space-3);
}

.filter-group__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.filter-checkbox {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  cursor: pointer;
  font-family: var(--font-body);
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.filter-checkbox:hover {
  color: var(--color-black);
}

.filter-checkbox input {
  appearance: none;
  width: 16px;
  height: 16px;
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-sm);
  background-color: var(--color-white);
  cursor: pointer;
  display: grid;
  place-content: center;
  flex-shrink: 0;
  transition: border-color var(--transition-fast);
}

.filter-checkbox input:checked {
  background-color: var(--color-black);
  border-color: var(--color-black);
}

.filter-checkbox input:checked::after {
  content: '';
  width: 8px;
  height: 8px;
  background-color: var(--color-white);
  clip-path: polygon(14% 44%, 0 65%, 40% 100%, 100% 16%, 84% 0%, 39% 66%);
}

.filter-checkbox__count {
  margin-left: auto;
  color: var(--text-muted);
  font-size: var(--fs-xs);
}

.filter-clear {
  font-family: var(--font-display);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  color: var(--color-black);
  background: none;
  border: none;
  padding: 0;
  text-decoration: underline;
  text-underline-offset: 4px;
  cursor: pointer;
  align-self: flex-start;
}

.filter-clear:hover {
  color: var(--text-muted);
}

/* ── Product Grid ── */
.shop__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
  align-items: stretch;
}

@media (min-width: 640px) {
  .shop__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-4);
  }
}

@media (min-width: 1024px) {
  .shop__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ── Add to Tag List button on cards ── */
.product-card__actions {
  margin-top: var(--space-2);
}

.product-card__tag-btn {
  width: 100%;
  padding: var(--space-2) var(--space-3);
  font-family: var(--font-display);
  font-size: var(--fs-xs);
  font-weight: var(--fw-medium);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  background-color: var(--color-white);
  color: var(--color-black);
  border: 1px solid var(--color-black);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.product-card__tag-btn:hover {
  background-color: var(--color-black);
  color: var(--color-white);
}

/* ── Empty state ── */
.shop__empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: var(--space-8) var(--space-4);
  color: var(--text-muted);
}

.shop__empty h3 {
  font-family: var(--font-display);
  font-size: var(--fs-xl);
  font-weight: var(--fw-bold);
  color: var(--color-black);
  margin-bottom: var(--space-3);
}

.shop__empty button {
  margin-top: var(--space-4);
}

/* ── Mobile filter drawer backdrop ── */
.filters-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 250;
}

.filters-backdrop.is-open {
  display: block;
}

@media (min-width: 1024px) {
  .filters-backdrop {
    display: none !important;
  }
}

/* ── Mobile: filters become a slide-in drawer ── */
@media (max-width: 1023px) {
  .filters {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: min(320px, 85vw);
    background-color: var(--color-white);
    padding: var(--space-5) var(--space-4);
    z-index: 300;
    max-height: 100vh;
    overflow-y: auto;
    border-right: 1px solid var(--border-light);
    transform: translateX(-100%);
    transition: transform var(--transition-base);
  }

  .filters.is-open {
    transform: translateX(0);
    display: flex;
  }
}