/* =============================================================================
   Mueller's Collection Pages — collection-filters.css
   Version: 1.0.0

   Filter sidebar form, mobile drawer, active chips, and filter group checkboxes.
   All classes prefixed mrp-col-.  No generic element selectors.
   ============================================================================= */

/* ── Filter form shared ─────────────────────────────────────────────────────── */
.mrp-col-filter-form {
  /* container for both sidebar and mobile form — no visual chrome here */
}

/* ── Sidebar form header ────────────────────────────────────────────────────── */
.mrp-col-filter-form__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--mrp-col-border);
}

.mrp-col-filter-form__title {
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--mrp-col-text-primary);
  font-family: var(--mrp-col-font-sans);
}

.mrp-col-filter-form__clear {
  font-size: var(--mrp-col-font-size-xs);
  font-weight: 500;
  color: var(--mrp-col-text-secondary);
  text-decoration: underline;
  text-underline-offset: 2px;
  font-family: var(--mrp-col-font-sans);
  transition: color var(--mrp-col-transition);
}

.mrp-col-filter-form__clear:hover {
  color: var(--mrp-col-text-primary);
}

.mrp-col-filter-form__clear:focus-visible {
  outline: 2px solid var(--mrp-col-border-focus);
  outline-offset: 2px;
  border-radius: 2px;
}

/* Sidebar Apply button */
.mrp-col-filter-form__footer {
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid var(--mrp-col-border);
}

.mrp-col-filter-form__submit {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--mrp-col-accent);
  color: var(--mrp-col-accent-text);
  border: none;
  border-radius: var(--mrp-col-card-radius);
  font-size: var(--mrp-col-font-size-sm);
  font-weight: 600;
  font-family: var(--mrp-col-font-sans);
  letter-spacing: 0.04em;
  cursor: pointer;
  min-height: 44px;
  transition: background var(--mrp-col-transition);
}

.mrp-col-filter-form__submit:hover {
  background: var(--mrp-col-accent-hover);
}

.mrp-col-filter-form__submit:focus-visible {
  outline: 2px solid var(--mrp-col-border-focus);
  outline-offset: 2px;
}

/* ── Filter group (fieldset) ────────────────────────────────────────────────── */
.mrp-col-filter__group {
  border: none;
  margin: 0 0 1.25rem;
  padding: 0;
}

.mrp-col-filter__group:last-of-type {
  margin-bottom: 0;
}

/* Legend */
.mrp-col-filter__legend {
  display: block;
  width: 100%;
  font-size: var(--mrp-col-font-size-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--mrp-col-text-primary);
  padding: 0 0 0.625rem;
  border-bottom: 1px solid var(--mrp-col-border);
  margin-bottom: 0.625rem;
  font-family: var(--mrp-col-font-sans);
}

/* Term list */
.mrp-col-filter__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
}

.mrp-col-filter__item {
  /* list item */
}

/* Label */
.mrp-col-filter__label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.3125rem 0;
  cursor: pointer;
  min-height: 44px;
  font-size: var(--mrp-col-font-size-sm);
  color: var(--mrp-col-text-primary);
  font-family: var(--mrp-col-font-sans);
  transition: color var(--mrp-col-transition);
}

.mrp-col-filter__label:hover {
  color: var(--mrp-col-accent-hover);
}

/* Checkbox */
.mrp-col-filter__checkbox {
  appearance: none;
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  border: 1.5px solid var(--mrp-col-border-strong);
  border-radius: 2px;
  background: var(--mrp-col-bg);
  cursor: pointer;
  position: relative;
  transition: border-color var(--mrp-col-transition), background var(--mrp-col-transition);
}

.mrp-col-filter__checkbox:checked {
  background: var(--mrp-col-accent);
  border-color: var(--mrp-col-accent);
}

/* Checkmark via pseudo-element */
.mrp-col-filter__checkbox:checked::after {
  content: '';
  position: absolute;
  left: 3px;
  top: 1px;
  width: 5px;
  height: 9px;
  border: 2px solid var(--mrp-col-accent-text);
  border-top: none;
  border-left: none;
  transform: rotate(45deg);
}

.mrp-col-filter__checkbox:focus-visible {
  outline: 2px solid var(--mrp-col-border-focus);
  outline-offset: 2px;
}

.mrp-col-filter__label-text {
  line-height: 1.4;
  flex: 1;
}

/* ── Active filter chips ────────────────────────────────────────────────────── */
.mrp-col-chips {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.375rem;
  margin-bottom: 1.25rem;
}

.mrp-col-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.3125rem;
  padding: 0.3rem 0.625rem;
  background: var(--mrp-col-chip-bg);
  color: var(--mrp-col-chip-text);
  border: 1px solid var(--mrp-col-chip-bg);
  border-radius: 2px;
  font-size: var(--mrp-col-font-size-xs);
  font-weight: 500;
  font-family: var(--mrp-col-font-sans);
  text-decoration: none;
  min-height: 28px;
  transition: background var(--mrp-col-transition), border-color var(--mrp-col-transition);
}

.mrp-col-chip:hover {
  background: var(--mrp-col-accent-hover);
  border-color: var(--mrp-col-accent-hover);
}

.mrp-col-chip:focus-visible {
  outline: 2px solid var(--mrp-col-border-focus);
  outline-offset: 2px;
}

.mrp-col-chip__label {
  line-height: 1;
}

.mrp-col-chip__remove {
  font-size: 0.6875rem;
  line-height: 1;
  opacity: 0.8;
}

/* Clear All chip — outlined variant */
.mrp-col-chip--clear {
  background: var(--mrp-col-chip-clear-bg);
  color: var(--mrp-col-chip-clear-text);
  border-color: var(--mrp-col-chip-clear-border);
}

.mrp-col-chip--clear:hover {
  background: var(--mrp-col-bg-alt);
  border-color: var(--mrp-col-border-strong);
  color: var(--mrp-col-text-primary);
}

/* ── Mobile filter drawer ───────────────────────────────────────────────────── */
/*
   Hidden by default via the [hidden] attribute (set in PHP).
   JavaScript removes [hidden] to show; CSS positions and animates the panel.
   The drawer is always rendered in the DOM for accessibility and no-JS use.
*/
.mrp-col-drawer {
  /* No display:none here — hidden attribute controls visibility */
}

.mrp-col-drawer[hidden] {
  display: none !important;
}

/* Semi-transparent backdrop */
.mrp-col-drawer__backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  z-index: var(--mrp-col-backdrop-z);
}

/* Slide-in panel */
.mrp-col-drawer__panel {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(340px, 90vw);
  background: var(--mrp-col-bg);
  z-index: var(--mrp-col-drawer-z);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: -4px 0 24px rgba(0, 0, 0, 0.12);
}

/* Drawer header */
.mrp-col-drawer__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.125rem 1.25rem;
  border-bottom: 1px solid var(--mrp-col-border);
  flex-shrink: 0;
}

.mrp-col-drawer__title {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--mrp-col-text-primary);
  font-family: var(--mrp-col-font-sans);
  letter-spacing: 0.03em;
}

.mrp-col-drawer__close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  color: var(--mrp-col-text-secondary);
  font-size: 1.125rem;
  cursor: pointer;
  border-radius: 2px;
  transition: color var(--mrp-col-transition);
}

.mrp-col-drawer__close:hover {
  color: var(--mrp-col-text-primary);
}

.mrp-col-drawer__close:focus-visible {
  outline: 2px solid var(--mrp-col-border-focus);
  outline-offset: 2px;
}

/* Scrollable filter list */
.mrp-col-drawer__body {
  flex: 1;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding: 1.25rem;
}

/* Drawer footer: Apply + Clear */
.mrp-col-drawer__footer {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: 1.25rem;
  border-top: 1px solid var(--mrp-col-border);
  flex-shrink: 0;
  background: var(--mrp-col-bg);
}

.mrp-col-drawer__apply {
  width: 100%;
  padding: 0.875rem 1rem;
  background: var(--mrp-col-accent);
  color: var(--mrp-col-accent-text);
  border: none;
  border-radius: var(--mrp-col-card-radius);
  font-size: var(--mrp-col-font-size-base);
  font-weight: 600;
  font-family: var(--mrp-col-font-sans);
  cursor: pointer;
  min-height: 48px;
  transition: background var(--mrp-col-transition);
}

.mrp-col-drawer__apply:hover {
  background: var(--mrp-col-accent-hover);
}

.mrp-col-drawer__apply:focus-visible {
  outline: 2px solid var(--mrp-col-border-focus);
  outline-offset: 2px;
}

.mrp-col-drawer__clear {
  display: block;
  text-align: center;
  font-size: var(--mrp-col-font-size-sm);
  font-weight: 500;
  color: var(--mrp-col-text-secondary);
  text-decoration: underline;
  text-underline-offset: 2px;
  font-family: var(--mrp-col-font-sans);
  padding: 0.25rem 0;
  transition: color var(--mrp-col-transition);
}

.mrp-col-drawer__clear:hover {
  color: var(--mrp-col-text-primary);
}

.mrp-col-drawer__clear:focus-visible {
  outline: 2px solid var(--mrp-col-border-focus);
  outline-offset: 2px;
  border-radius: 2px;
}

/* ── Admin notice styling (WooCommerce inactive) ─────────────────────────────── */
/* Uses WordPress core .notice class — no additional CSS needed here */

/* ── prefers-reduced-motion ─────────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  .mrp-col-filter-form__submit,
  .mrp-col-filter-form__clear,
  .mrp-col-filter__checkbox,
  .mrp-col-filter__label,
  .mrp-col-chip,
  .mrp-col-drawer__close,
  .mrp-col-drawer__apply,
  .mrp-col-drawer__clear {
    transition: none;
  }
}