.collection-page__header {
  margin-bottom: var(--space-xl);
}

.collection-page__title {
  color: var(--navy-dark);
  margin-bottom: var(--space-sm);
}

.collection-page__description {
  font-size: var(--text-base);
  color: var(--slate);
  max-width: 700px;
  line-height: 1.6;
}

.collection-page__count {
  font-size: var(--text-sm);
  color: var(--slate);
  margin-top: var(--space-sm);
}

/* Toolbar */
.collection-page__toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-xl);
  gap: var(--space-md);
  flex-wrap: wrap;
}

.collection-page__sort-select {
  max-width: 200px;
}

/* Layout */
.collection-page__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
}

@media (min-width: 1024px) {
  .collection-page__layout {
    grid-template-columns: 240px 1fr;
  }
}

/* Sidebar */
.collection-page__sidebar {
  display: none;
}

@media (min-width: 1024px) {
  .collection-page__sidebar {
    display: block;
  }
}

.collection-page__sidebar.is-open {
  display: block;
}

.filter-group {
  margin-bottom: var(--space-xl);
}

.filter-group__title {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--charcoal);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid var(--border);
}

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

.filter-group__link {
  font-size: var(--text-sm);
  color: var(--slate);
  padding: var(--space-xs) 0;
  display: block;
}

.filter-group__link:hover {
  color: var(--scarlet);
}

.filter-group__link--active {
  color: var(--scarlet);
  font-weight: var(--weight-semibold);
}

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

.filter-group__checkbox input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--scarlet);
}

/* Empty state */
.collection-page__empty {
  text-align: center;
  padding: var(--space-3xl);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-lg);
  color: var(--slate);
}

/* Mobile filter toggle */
.collection-page__filter-toggle {
  display: flex;
}

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