.shop-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: var(--space-6);
  padding-block: var(--space-4) var(--space-12);
}

.shop-sidebar {
  position: sticky;
  top: calc(var(--header-height) + var(--topbar-height) + var(--nav-height) + var(--space-4));
  align-self: start;
}

.filter-group {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  margin-bottom: var(--space-3);
  box-shadow: var(--shadow-sm);
}

.filter-group__title {
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-3);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-border-light);
}

.filter-list li { margin-bottom: var(--space-2); }

.filter-list label {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  cursor: pointer;
}

.filter-list input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--color-brand);
}

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

.filter-group__note {
  font-size: var(--text-xs);
  line-height: var(--leading-relaxed);
  color: var(--color-text-secondary);
}

.price-range {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  width: 100%;
}

.price-range span {
  flex-shrink: 0;
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

.price-range input {
  flex: 1;
  min-width: 0;
  width: 0;
  height: 36px;
  padding: 0 var(--space-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  box-sizing: border-box;
}

.shop-main__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-5);
  padding: var(--space-4);
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.shop-main__title {
  font-size: var(--text-xl);
  font-weight: 800;
}

.shop-main__count {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.shop-main__intro {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin-top: var(--space-2);
  max-width: 520px;
  line-height: var(--leading-relaxed);
}

.shop-main__sort {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.shop-main__sort label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.shop-main__sort select {
  height: 36px;
  padding: 0 var(--space-8) 0 var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  background-color: white;
}

.shop-products {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  margin-top: var(--space-8);
}

.pagination__btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 600;
  background-color: white;
  color: var(--color-text-secondary);
}

.pagination__btn.is-active {
  background-color: var(--color-brand);
  border-color: var(--color-brand);
  color: white;
}

.filter-toggle {
  display: none;
  width: 100%;
  margin-bottom: var(--space-4);
}

@media (max-width: 1024px) {
  .shop-products { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .shop-layout { grid-template-columns: 1fr; }
  .filter-toggle { display: flex; }
  .shop-sidebar { display: none; position: static; }
  .shop-sidebar.is-open { display: block; }
  .shop-main__header { flex-direction: column; align-items: flex-start; gap: var(--space-3); }
}

@media (max-width: 480px) {
  .shop-products { grid-template-columns: 1fr 1fr; }
}