/* ============================================================
   FILTERS.CSS — sidebar (desktop) + mobile drawer
   ============================================================ */

/* ── Sidebar (desktop push) ── */
.filters-sidebar {
  flex-shrink: 0;
  width: 0;
  overflow: hidden;
  border-right: 0 solid var(--color-border);
  position: sticky;
  top: var(--header-height);
  height: calc(100vh - var(--header-height));
  overflow-y: hidden;
  transition: width var(--transition-base), border-width var(--transition-base);
}

.filters-sidebar.open {
  width: var(--sidebar-width);
  border-right-width: 1px;
  overflow-y: auto;
}

.filters-inner {
  padding: var(--space-lg) var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

/* ── Filter section ── */
.filter-section {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.filter-heading {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border);
  padding-bottom: var(--space-xs);
}

/* ── Disponibilidad ── */
.filter-label {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 13px;
  cursor: pointer;
  user-select: none;
}

.filter-label input[type="checkbox"] {
  accent-color: var(--color-text);
  width: 14px;
  height: 14px;
  cursor: pointer;
}

/* ── Category list ── */
.categoria-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.cat-label {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 13px;
  cursor: pointer;
  user-select: none;
  padding: 2px 0;
}

.cat-label input[type="checkbox"] {
  accent-color: var(--color-text);
  width: 14px;
  height: 14px;
  cursor: pointer;
  flex-shrink: 0;
}

.cat-count {
  color: var(--color-text-muted);
  font-size: 11px;
  margin-left: auto;
}

.cat-label.unavailable {
  opacity: 0.3;
  cursor: not-allowed;
  pointer-events: none;
}

/* ── Price range ── */
.price-range {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.price-track {
  position: relative;
  height: 28px;
  display: flex;
  align-items: center;
}

.price-track input[type="range"] {
  position: absolute;
  width: 100%;
  height: 2px;
  appearance: none;
  -webkit-appearance: none;
  background: transparent;
  pointer-events: none;
  outline: none;
}

.price-track input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--color-text);
  cursor: pointer;
  pointer-events: all;
}

.price-track input[type="range"]::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--color-text);
  cursor: pointer;
  pointer-events: all;
  border: none;
}

/* Range track background visual */
.price-track::before {
  content: "";
  position: absolute;
  width: 100%;
  height: 2px;
  background: var(--color-border);
  border-radius: 1px;
}

.price-labels {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--color-text-muted);
}

/* ── Talla grid ── */
.talla-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xs);
}

.talla-chip {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  user-select: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 4px 0;
  transition: background var(--transition-fast), border-color var(--transition-fast);
  text-align: center;
}

.talla-chip input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.talla-chip:has(input:checked),
.talla-chip.selected {
  background: var(--color-text);
  color: var(--color-bg);
  border-color: var(--color-text);
}

.talla-chip:hover:not(.unavailable) {
  border-color: var(--color-text);
}

.talla-chip.unavailable {
  opacity: 0.28;
  cursor: not-allowed;
  pointer-events: none;
  position: relative;
}

.talla-chip.unavailable::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 8%;
  width: 84%;
  height: 1px;
  background: currentColor;
  transform: rotate(-45deg);
}

/* ── Color grid ── */
.color-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: var(--space-xs);
}

.color-chip {
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  user-select: none;
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  padding: 2px;
  transition: border-color var(--transition-fast);
  position: relative;
}

.color-chip input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.color-swatch {
  display: block;
  width: 100%;
  aspect-ratio: 1;
  border-radius: 1px;
  border: 1px solid rgba(0, 0, 0, 0.12);
}

.color-chip:hover:not(.unavailable) {
  border-color: var(--color-text);
}

.color-chip.unavailable {
  opacity: 0.22;
  cursor: not-allowed;
  pointer-events: none;
}

.color-chip.selected {
  border-color: var(--color-text);
  box-shadow: 0 0 0 1px var(--color-text);
}

/* ── Clear filters ── */
.clear-filters-btn {
  font-size: 12px;
  text-decoration: underline;
  color: var(--color-text-muted);
  padding: 0;
  transition: color var(--transition-fast);
  text-align: left;
  cursor: pointer;
}

.clear-filters-btn:hover {
  color: var(--color-text);
}

/* ── Drawer sort section ── */
.drawer-count {
  display: block;
  font-size: 12px;
  color: var(--color-text-muted);
  margin-bottom: var(--space-sm);
}

.filter-sort-select {
  width: 100%;
  padding: 8px 10px;
  font-size: 13px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  color: var(--color-text);
  cursor: pointer;
}

/* header-filter-btn lives in main.css */

/* ── Mobile filter drawer ── */
.filter-drawer {
  position: fixed;
  top: 0;
  left: 0;
  width: min(320px, 90vw);
  height: 100vh;
  background: var(--color-bg);
  z-index: 300;
  display: flex;
  flex-direction: column;
  transform: translateX(-100%);
  transition: transform var(--transition-base);
  overscroll-behavior: contain;
}

.filter-drawer.open {
  transform: translateX(0);
}

.drawer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  z-index: 299;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
}

.drawer-overlay.visible {
  opacity: 1;
  pointer-events: all;
}

.drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md);
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
}

.drawer-title {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.drawer-close-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4px;
  border-radius: var(--radius-md);
  transition: background var(--transition-fast);
}

.drawer-close-btn:hover {
  background: var(--color-surface);
}

.drawer-content {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  overscroll-behavior: contain;
}

.drawer-footer {
  padding: var(--space-md);
  border-top: 1px solid var(--color-border);
  flex-shrink: 0;
}

.drawer-apply-btn {
  width: 100%;
  padding: 12px;
  background: var(--color-text);
  color: var(--color-bg);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  transition: opacity var(--transition-fast);
}

.drawer-apply-btn:hover {
  opacity: 0.85;
}

/* ── Search filter ── */
.search-filter {
  padding: 12px 16px 4px;
}

.search-input {
  width: 100%;
  padding: 9px 12px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-size: 13px;
  outline: none;
  transition: border-color var(--transition-fast);
  box-sizing: border-box;
}

.search-input::placeholder {
  color: var(--color-muted);
}

.search-input:focus {
  border-color: var(--color-text);
}