/**
 * WC AJAX Filter — Stylesheet
 *
 * Sections:
 *  1. Custom properties (design tokens)
 *  2. Filter widget  (.wcaf-filter)
 *     a. Header + toggle
 *     b. Checkbox / radio list
 *     c. Dropdown
 *     d. Tab UI
 *     e. Price range slider
 *     f. Price dropdown
 *  3. Product list  (.wcaf-product-list)
 *     a. Toolbar
 *     b. Loading overlay + spinner
 *     c. Grid layout
 *     d. WC native item overrides (float reset for older themes)
 *     e. Pagination
 *  4. Utility / accessibility
 *
 * @package WC_Ajax_Filter
 */

/* =============================================================================
   1. Custom Properties
   ============================================================================= */

:root {
  --wcaf-primary: #7952b3;
  --wcaf-primary-dark: #6741a5;
  --wcaf-text: #1d1f23;
  --wcaf-muted: #6b7280;
  --wcaf-border: #e2e8f0;
  --wcaf-bg: #f8fafc;
  --wcaf-white: #ffffff;
  --wcaf-error: #dc2626;
  --wcaf-sale-color: #ef4444;

  --wcaf-radius: 0.375rem; /* 6px  */
  --wcaf-radius-lg: 0.625rem; /* 10px */
  --wcaf-radius-pill: 999px;

  --wcaf-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --wcaf-shadow-md: 0 4px 16px rgba(0, 0, 0, 0.1);
  --wcaf-shadow-lg: 0 8px 28px rgba(0, 0, 0, 0.12);

  --wcaf-transition: 0.18s ease;
  --wcaf-gap: 1rem;
}

/* =============================================================================
   2. Filter Widget
   ============================================================================= */

/* ---- Container ---- */

.wcaf-filter {
  background: var(--wcaf-white);
  border: 1px solid var(--wcaf-border);
  border-radius: var(--wcaf-radius-lg);
  margin-bottom: var(--wcaf-gap);
  /* Do NOT use overflow:hidden — it clips native <select multiple> listboxes
     in some browsers. The border-radius is preserved by the border itself. */
}

/* ---- 2a. Header ---- */

.wcaf-filter__header {
  padding: 0.875rem 1.25rem 0;
}

.wcaf-filter__title {
  margin: 0;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--wcaf-text);
  line-height: 1.3;
}

/* ---- Body ---- */

.wcaf-filter__body {
  padding: 0.75rem 1.25rem 1rem;
}

.wcaf-notice {
  margin: 0;
  color: var(--wcaf-muted);
  font-size: 0.875rem;
}

/* ---- 2b. Checkbox / Radio list ---- */

.wcaf-filter__list {
  list-style: none;
  margin: 0;
  padding: 0;
  max-height: 260px;
  overflow-y: auto;
  scrollbar-width: thin;
}

.wcaf-filter__item {
  margin-bottom: 0.5rem;
}

.wcaf-filter__item:last-child {
  margin-bottom: 0;
}

.wcaf-filter__label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  font-size: 0.9rem;
  color: var(--wcaf-text);
  transition: color var(--wcaf-transition);
}

.wcaf-filter__label:hover {
  color: var(--wcaf-primary);
}

.wcaf-filter__input[type="checkbox"],
.wcaf-filter__input[type="radio"] {
  accent-color: var(--wcaf-primary);
  width: 1rem;
  height: 1rem;
  flex-shrink: 0;
  cursor: pointer;
}

.wcaf-filter__label-text {
  flex: 1;
}

.wcaf-filter__count {
  color: var(--wcaf-muted);
  font-size: 0.8125rem;
}

/* ---- 2c. Dropdown ---- */

.wcaf-filter__dropdown-wrap {
  position: relative;
}

/*
 * Base styles shared by both single-select and multi-select.
 */
.wcaf-filter__select {
  width: 100%;
  border: 1px solid var(--wcaf-border);
  border-radius: var(--wcaf-radius);
  background: var(--wcaf-white);
  color: var(--wcaf-text);
  font-size: 0.9rem;
  cursor: pointer;
  transition:
    border-color var(--wcaf-transition),
    box-shadow var(--wcaf-transition);
}

.wcaf-filter__select:focus {
  outline: none;
  border-color: var(--wcaf-primary);
  box-shadow: 0 0 0 3px rgba(121, 82, 179, 0.15);
}

/*
 * Single-select — styled as a compact dropdown with a custom arrow.
 */
.wcaf-filter__select:not([multiple]) {
  padding: 0.5rem 2.5rem 0.5rem 0.75rem;
  -webkit-appearance: none;
  appearance: none;
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
  background-position: right 0.5rem center;
  background-repeat: no-repeat;
  background-size: 1.5em 1.5em;
}

/*
 * Multi-select — rendered as a scrollable listbox.
 * Do NOT apply appearance:none — it breaks native listbox rendering in most
 * browsers and causes options to overflow the element boundaries.
 */
.wcaf-filter__select[multiple] {
  padding: 0.25rem 0;
  max-height: 200px;
  overflow-y: auto;
  scrollbar-width: thin;
  background-image: none; /* no dropdown arrow */
}

.wcaf-filter__select[multiple] option {
  padding: 0.375rem 0.875rem;
  border-radius: 0;
  cursor: pointer;
}

.wcaf-filter__select[multiple] option:checked {
  background: linear-gradient(
    0deg,
    var(--wcaf-primary) 0%,
    var(--wcaf-primary) 100%
  );
  color: var(--wcaf-white);
}

/* ---- 2d. Tab UI ---- */

.wcaf-filter__tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
}

.wcaf-filter__tab {
  padding: 0.375rem 0.875rem;
  border: 1px solid var(--wcaf-border);
  border-radius: var(--wcaf-radius-pill);
  background: var(--wcaf-white);
  color: var(--wcaf-text);
  font-size: 0.875rem;
  cursor: pointer;
  transition: all var(--wcaf-transition);
  line-height: 1.4;
}

.wcaf-filter__tab:hover {
  border-color: var(--wcaf-primary);
  color: var(--wcaf-primary);
}

.wcaf-filter__tab.is-active {
  background: var(--wcaf-primary);
  border-color: var(--wcaf-primary);
  color: var(--wcaf-white);
}

/* ---- 2e. Price Range Slider ---- */

.wcaf-filter__price-range {
  padding-top: 0.25rem;
}

/* Slider track + thumbs */
.wcaf-filter__price-slider {
  position: relative;
  height: 2.75rem;
  margin-bottom: 1rem;
}

.wcaf-filter__price-track {
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--wcaf-border);
  border-radius: 2px;
  transform: translateY(-50%);
}

.wcaf-filter__price-fill {
  position: absolute;
  inset-block: 0;
  background: var(--wcaf-primary);
  border-radius: 2px;
}

.wcaf-filter__range {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  background: transparent;
  -webkit-appearance: none;
  appearance: none;
  margin: 0;
  padding: 0;
  pointer-events: none;
}

.wcaf-filter__range::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--wcaf-white);
  border: 2px solid var(--wcaf-primary);
  box-shadow: var(--wcaf-shadow-sm);
  cursor: pointer;
  pointer-events: all;
  transition:
    transform var(--wcaf-transition),
    box-shadow var(--wcaf-transition);
}

.wcaf-filter__range::-webkit-slider-thumb:hover {
  transform: scale(1.2);
  box-shadow: var(--wcaf-shadow-md);
}

.wcaf-filter__range::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--wcaf-white);
  border: 2px solid var(--wcaf-primary);
  box-shadow: var(--wcaf-shadow-sm);
  cursor: pointer;
  pointer-events: all;
}

/* Min / max text inputs */
.wcaf-filter__price-inputs {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.wcaf-filter__price-input-group {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  flex: 1;
}

.wcaf-filter__price-label {
  font-size: 0.8125rem;
  color: var(--wcaf-muted);
  white-space: nowrap;
  user-select: none;
}

.wcaf-filter__currency {
  font-size: 0.875rem;
  color: var(--wcaf-muted);
}

.wcaf-filter__price-min,
.wcaf-filter__price-max {
  width: 100%;
  padding: 0.375rem 0.5rem;
  border: 1px solid var(--wcaf-border);
  border-radius: var(--wcaf-radius);
  font-size: 0.875rem;
  text-align: center;
  transition:
    border-color var(--wcaf-transition),
    box-shadow var(--wcaf-transition);
}

.wcaf-filter__price-min:focus,
.wcaf-filter__price-max:focus {
  outline: none;
  border-color: var(--wcaf-primary);
  box-shadow: 0 0 0 3px rgba(121, 82, 179, 0.15);
}

.wcaf-filter__price-separator {
  color: var(--wcaf-muted);
  flex-shrink: 0;
}

/* ---- 2f. Price dropdown ---- */

.wcaf-filter__price-dropdown {
  position: relative;
}

/* =============================================================================
   3. Product List
   ============================================================================= */

.wcaf-product-list {
  position: relative;
}

/* ---- 3a. Toolbar ---- */

.wcaf-product-list__toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--wcaf-border);
}

.wcaf-product-list__results-count {
  margin: 0;
  font-size: 0.875rem;
  color: var(--wcaf-muted);
}

.wcaf-product-list__toolbar-controls {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.625rem;
}

.wcaf-product-list__per-page,
.wcaf-product-list__orderby {
  padding: 0.4rem 2.25rem 0.4rem 0.75rem;
  border: 1px solid var(--wcaf-border);
  border-radius: var(--wcaf-radius);
  background: var(--wcaf-white);
  color: var(--wcaf-text);
  font-size: 0.875rem;
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
  background-position: right 0.4rem center;
  background-repeat: no-repeat;
  background-size: 1.25em 1.25em;
  transition: border-color var(--wcaf-transition);
}

.wcaf-product-list__per-page:focus,
.wcaf-product-list__orderby:focus {
  outline: none;
  border-color: var(--wcaf-primary);
}

/* ---- 3b. Loading overlay + spinner ---- */

.wcaf-product-list__loading {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(2px);
  border-radius: var(--wcaf-radius-lg);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--wcaf-transition);
  z-index: 10;
}

.wcaf-product-list.is-loading .wcaf-product-list__loading {
  opacity: 1;
  pointer-events: all;
}

.wcaf-spinner {
  width: 44px;
  height: 44px;
  border: 3px solid var(--wcaf-border);
  border-top-color: var(--wcaf-primary);
  border-radius: 50%;
  animation: wcaf-spin 0.7s linear infinite;
}

@keyframes wcaf-spin {
  to {
    transform: rotate(360deg);
  }
}

/* ---- 3c. Grid layout ---- */

.wcaf-product-list__grid {
  display: grid;
  grid-template-columns: repeat(var(--wcaf-cols, 4), 1fr);
  gap: 1.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

/* Tablet breakpoint */
@media (max-width: 1024px) {
  .wcaf-product-list__grid {
    grid-template-columns: repeat(var(--wcaf-cols-tablet, 2), 1fr);
  }
}

/* Mobile breakpoint */
@media (max-width: 600px) {
  .wcaf-product-list__grid {
    grid-template-columns: repeat(var(--wcaf-cols-mobile, 1), 1fr);
    gap: 1rem;
  }
}

/* No-results message */
.wcaf-no-products {
  grid-column: 1 / -1;
  text-align: center;
  padding: 3.5rem 1rem;
  color: var(--wcaf-muted);
  font-size: 0.9375rem;
}

/* ---- 3d. WooCommerce native product item overrides ---- */
/*
 * Item layout is handled by the active WooCommerce theme/child-theme via
 * content-product.php.  The rules below only ensure that <li class="product">
 * elements inside our grid fill their grid cell correctly and do not carry
 * float/width styles that some older WC themes apply to ul.products > li.
 */

.wcaf-product-list__grid.products > li.product {
  /* Reset any float-based column width the theme may apply. */
  float: none !important;
  width: auto !important;
  margin-left: 0 !important;
  margin-right: 0 !important;
}

/* ---- 3e. Pagination ---- */

.wcaf-product-list__pagination {
  margin-top: 2rem;
}

.wcaf-pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--wcaf-border);
}

.wcaf-pagination__btn {
  padding: 0.5rem 1.25rem;
  background: var(--wcaf-white);
  border: 1px solid var(--wcaf-border);
  border-radius: var(--wcaf-radius);
  font-size: 0.9rem;
  cursor: pointer;
  color: var(--wcaf-text);
  transition: all var(--wcaf-transition);
  line-height: 1.5;
}

.wcaf-pagination__btn:hover {
  background: var(--wcaf-primary);
  border-color: var(--wcaf-primary);
  color: var(--wcaf-white);
}

.wcaf-pagination__info {
  font-size: 0.875rem;
  color: var(--wcaf-muted);
}

/* =============================================================================
   4. Error state
   ============================================================================= */

.wcaf-error {
  text-align: center;
  padding: 2.5rem 1rem;
  color: var(--wcaf-error);
  font-size: 0.9375rem;
}

/* =============================================================================
   5. Accessibility — Screen-reader only text
   ============================================================================= */

.screen-reader-text {
  border: 0;
  clip: rect(1px, 1px, 1px, 1px);
  clip-path: inset(50%);
  height: 1px;
  margin: -1px;
  overflow: hidden;
  padding: 0;
  position: absolute;
  width: 1px;
  word-wrap: normal !important;
}

.screen-reader-text:focus {
  background: var(--wcaf-bg);
  clip: auto !important;
  clip-path: none;
  color: var(--wcaf-text);
  display: block;
  font-size: 0.875rem;
  font-weight: 700;
  height: auto;
  left: 0.5rem;
  line-height: normal;
  padding: 0.875rem 1.25rem;
  top: 0.5rem;
  width: auto;
  z-index: 100000;
}

/* =============================================================================
   6. Filter status — [wc_filter_count] & [wc_clear_filter]
   ============================================================================= */

/* ── Filter count badge ─────────────────────────────────────────────────────── */

.wcaf-filter-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.5rem;
  height: 1.5rem;
  padding: 0 0.4rem;
  border-radius: var(--wcaf-radius-pill);
  background-color: var(--wcaf-primary);
  color: var(--wcaf-white);
  font-size: 0.75rem;
  font-weight: 700;
  line-height: 1;
  vertical-align: middle;
  transition:
    background-color var(--wcaf-transition),
    opacity var(--wcaf-transition);
}

/* Fade the badge when there are no active filters */
.wcaf-filter-count.is-empty {
  background-color: var(--wcaf-muted);
  opacity: 0.45;
}

/* ── Clear-filter button ────────────────────────────────────────────────────── */

.wcaf-clear-filter {
  display: none; /* hidden until JS adds .is-active when filters are active */
}

.wcaf-clear-filter.is-active {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.45rem 1rem;
  border: 1px solid var(--wcaf-border);
  border-radius: var(--wcaf-radius);
  background-color: var(--wcaf-white);
  color: var(--wcaf-text);
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1.4;
  cursor: pointer;
  transition:
    background-color var(--wcaf-transition),
    border-color var(--wcaf-transition),
    color var(--wcaf-transition),
    box-shadow var(--wcaf-transition);
}

.wcaf-clear-filter.is-active:hover,
.wcaf-clear-filter.is-active:focus-visible {
  background-color: var(--wcaf-bg);
  border-color: var(--wcaf-primary);
  color: var(--wcaf-primary);
  box-shadow: var(--wcaf-shadow-sm);
  outline: none;
}

.wcaf-clear-filter.is-active:active {
  background-color: var(--wcaf-primary);
  border-color: var(--wcaf-primary-dark);
  color: var(--wcaf-white);
}

/* =============================================================================
   7. Active filter chips  [wc_active_filters]
   ============================================================================= */

.wcaf-active-filters {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
}

/* Hide the outer wrapper when empty if you prefer — add the class yourself */
.wcaf-active-filters.is-empty .wcaf-active-filters__tags {
  display: none;
}

/* Optional empty-state text */
.wcaf-active-filters__empty {
  font-size: 0.875rem;
  color: var(--wcaf-muted);
}

/* Tag chips row */
.wcaf-active-filters__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
}

/* Individual chip */
.wcaf-active-filters__tag {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.25rem 0.55rem;
  border-radius: var(--wcaf-radius-pill);
  background-color: var(--wcaf-primary);
  color: var(--wcaf-white);
  font-size: 0.8125rem;
  font-weight: 500;
  line-height: 1.3;
  white-space: nowrap;
}

.wcaf-active-filters__tag-text {
  pointer-events: none;
}

/* × remove button inside chip */
.wcaf-active-filters__tag-remove {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.1rem;
  height: 1.1rem;
  padding: 0;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.25);
  color: inherit;
  font-size: 0.875rem;
  line-height: 1;
  cursor: pointer;
  transition: background-color var(--wcaf-transition);
}

.wcaf-active-filters__tag-remove:hover {
  background: rgba(255, 255, 255, 0.45);
}

/* "Clear all" button inside the widget */
.wcaf-active-filters__clear-all {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.65rem;
  border: 1px solid var(--wcaf-border);
  border-radius: var(--wcaf-radius-pill);
  background: transparent;
  color: var(--wcaf-muted);
  font-size: 0.8125rem;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
  transition:
    border-color var(--wcaf-transition),
    color var(--wcaf-transition),
    background-color var(--wcaf-transition);
}

.wcaf-active-filters__clear-all:hover,
.wcaf-active-filters__clear-all:focus-visible {
  border-color: var(--wcaf-error);
  color: var(--wcaf-error);
  background-color: rgba(220, 38, 38, 0.05);
  outline: none;
}