/* ==========================================================================
   ENTEYA JEWELLERY - ADVANCED PRODUCT FILTERING & DISCOVERY SYSTEM CSS
   Brand Tokens: Maroon (#5D1E2B), Gold (#D2A75C), Ivory (#FCFAF7), Manrope
   ========================================================================== */

:root {
  --filter-maroon: #5D1E2B;
  --filter-maroon-dark: #3D0D17;
  --filter-maroon-soft: rgba(93, 30, 43, 0.08);
  --filter-gold: #D2A75C;
  --filter-gold-dark: #B88E44;
  --filter-gold-light: #F4E8D0;
  --filter-gold-border: rgba(210, 167, 92, 0.35);
  --filter-ivory: #FFFDF8;
  --filter-border-subtle: #EDE5DF;
  --filter-text-muted: #8C7B7D;
  --filter-text-dark: #2A171B;
}

/* 1. FILTER SIDEBAR CONTAINER */
.enteya-filter-sidebar {
  background: var(--filter-ivory);
  border: 1px solid var(--filter-border-subtle);
  border-radius: 8px;
  padding: 24px;
  box-shadow: 0 4px 16px rgba(61, 13, 23, 0.03);
  font-family: 'Manrope', sans-serif;
  box-sizing: border-box;
}

.filter-sidebar-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--filter-gold-border);
}

.filter-sidebar-title {
  font-family: var(--font-serif, 'Playfair Display', serif);
  font-size: 20px;
  font-weight: 700;
  color: var(--filter-maroon);
  margin: 0;
  display: flex;
  align-items: center;
  gap: 8px;
}

.filter-reset-btn {
  background: none;
  border: none;
  color: var(--filter-gold-dark);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 4px;
  transition: all 200ms ease;
}

.filter-reset-btn:hover {
  background: var(--filter-gold-light);
  color: var(--filter-maroon);
}

/* 2. COLLAPSIBLE ACCORDION SECTIONS */
.filter-group {
  margin-bottom: 18px;
  border-bottom: 1px solid var(--filter-border-subtle);
  padding-bottom: 16px;
}

.filter-group:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.filter-group-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  background: none;
  border: none;
  padding: 8px 0;
  cursor: pointer;
  text-align: left;
  user-select: none;
}

.filter-group-title {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--filter-maroon);
  display: flex;
  align-items: center;
  gap: 6px;
  margin: 0;
}

.filter-group-chevron {
  color: var(--filter-gold);
  font-size: 12px;
  transition: transform 250ms ease;
}

.filter-group.collapsed .filter-group-chevron {
  transform: rotate(-90deg);
}

.filter-group-content {
  margin-top: 10px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: max-height 300ms ease, opacity 250ms ease;
  overflow: hidden;
}

.filter-group.collapsed .filter-group-content {
  display: none;
}

/* 3. CHECKBOX & OPTION LABELS */
.filter-checkbox-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: var(--filter-text-dark);
  cursor: pointer;
  padding: 4px 6px;
  border-radius: 4px;
  transition: background 150ms ease;
}

.filter-checkbox-label:hover {
  background: var(--filter-maroon-soft);
}

.filter-checkbox-left {
  display: flex;
  align-items: center;
  gap: 8px;
}

.filter-checkbox-input {
  width: 16px;
  height: 16px;
  accent-color: var(--filter-maroon);
  cursor: pointer;
  margin: 0;
}

.filter-count-badge {
  font-size: 11px;
  color: var(--filter-text-muted);
  font-weight: 600;
  background: rgba(0, 0, 0, 0.04);
  padding: 2px 6px;
  border-radius: 10px;
}

/* 4. DUAL-RANGE PRICE SLIDER */
.price-slider-wrap {
  padding: 8px 4px 16px 4px;
}

.price-range-inputs {
  position: relative;
  height: 32px;
  margin-bottom: 12px;
}

.price-range-inputs input[type="range"] {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  pointer-events: none;
  appearance: none;
  -webkit-appearance: none;
  background: none;
  margin: 0;
  height: 32px;
  z-index: 3;
}

.price-range-inputs input[type="range"]::-webkit-slider-thumb {
  pointer-events: auto;
  appearance: none;
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--filter-gold);
  border: 2px solid #FFFDF8;
  box-shadow: 0 2px 6px rgba(61, 13, 23, 0.3);
  cursor: pointer;
  transition: transform 150ms ease, background 150ms ease;
}

.price-range-inputs input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.15);
  background: var(--filter-maroon);
}

.price-slider-track {
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 4px;
  background: #E5E7EB;
  border-radius: 2px;
  transform: translateY(-50%);
  z-index: 1;
}

.price-slider-progress {
  position: absolute;
  top: 50%;
  height: 4px;
  background: var(--filter-gold);
  border-radius: 2px;
  transform: translateY(-50%);
  z-index: 2;
}

.price-slider-labels {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  font-weight: 700;
  color: var(--filter-maroon);
}

.price-indicator-box {
  background: #FFFDF8;
  border: 1px solid var(--filter-gold-border);
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 12.5px;
}

/* 5. VISUAL SWATCHES (PLATING & STONE/BEAD COLORS) */
.swatches-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 4px 0;
}

.swatch-item {
  position: relative;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 8px;
  border: 1px solid var(--filter-border-subtle);
  border-radius: 20px;
  background: #FFFDF8;
  cursor: pointer;
  font-size: 12px;
  color: var(--filter-text-dark);
  transition: all 200ms ease;
  user-select: none;
}

.swatch-item:hover {
  border-color: var(--filter-gold);
  background: var(--filter-maroon-soft);
}

.swatch-item.active {
  border-color: var(--filter-maroon);
  background: var(--filter-maroon-soft);
  font-weight: 700;
  color: var(--filter-maroon);
}

.swatch-circle {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 1px solid rgba(0, 0, 0, 0.15);
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.1);
  display: inline-block;
  flex-shrink: 0;
}

.swatch-circle-large {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  position: relative;
  transition: transform 150ms ease, border-color 150ms ease;
}

.swatch-circle-large:hover {
  transform: scale(1.15);
}

.swatch-circle-large.active {
  border-color: var(--filter-maroon);
  transform: scale(1.15);
}

.swatch-circle-large.active::after {
  content: '✓';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: white;
  font-size: 12px;
  font-weight: 900;
  text-shadow: 0 1px 2px rgba(0,0,0,0.8);
}

/* 6. SIZE CHIPS (BANGLES & RINGS) */
.size-chips-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 4px 0;
}

.size-chip {
  padding: 6px 12px;
  border: 1px solid var(--filter-border-subtle);
  border-radius: 4px;
  background: #FFFDF8;
  font-size: 12px;
  font-weight: 600;
  color: var(--filter-text-dark);
  cursor: pointer;
  transition: all 150ms ease;
  user-select: none;
}

.size-chip:hover {
  border-color: var(--filter-gold);
  background: var(--filter-gold-light);
}

.size-chip.active {
  background: var(--filter-maroon);
  border-color: var(--filter-maroon);
  color: #FFFDF8;
  font-weight: 700;
}

/* 7. ACTIVE FILTER CHIPS BAR (ABOVE PRODUCT GRID) */
.active-filters-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 20px;
  padding: 12px 16px;
  background: rgba(210, 167, 92, 0.08);
  border: 1px solid var(--filter-gold-border);
  border-radius: 6px;
}

.active-filters-label {
  font-size: 12px;
  font-weight: 700;
  color: var(--filter-maroon);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-right: 4px;
}

.filter-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  background: #FFFDF8;
  border: 1px solid var(--filter-gold);
  border-radius: 16px;
  font-size: 12px;
  font-weight: 600;
  color: var(--filter-maroon);
  box-shadow: 0 1px 3px rgba(61, 13, 23, 0.06);
}

.filter-chip-remove {
  cursor: pointer;
  background: none;
  border: none;
  color: var(--filter-text-muted);
  font-size: 14px;
  line-height: 1;
  padding: 0;
  margin-left: 2px;
}

.filter-chip-remove:hover {
  color: var(--filter-maroon);
  font-weight: 900;
}

.filter-clear-all-chip {
  background: none;
  border: none;
  color: var(--filter-gold-dark);
  font-size: 12px;
  font-weight: 700;
  text-decoration: underline;
  cursor: pointer;
  padding: 4px 8px;
  margin-left: auto;
}

.filter-clear-all-chip:hover {
  color: var(--filter-maroon);
}

/* 8. QUALITY & DURABILITY VERIFIED BADGES */
.durability-claim-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  color: var(--filter-text-dark);
}

.verified-icon {
  color: var(--filter-gold);
  font-size: 14px;
}

/* 9. MOBILE BOTTOM SHEET & DRAWER */
.mobile-filter-drawer {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  z-index: 9999;
  display: flex;
  justify-content: flex-end;
  opacity: 0;
  visibility: hidden;
  transition: opacity 300ms ease, visibility 300ms ease;
}

.mobile-filter-drawer.open {
  opacity: 1;
  visibility: visible;
}

.mobile-filter-panel {
  width: 88%;
  max-width: 420px;
  height: 100%;
  background: #FFFDF8;
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform 300ms cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: -8px 0 24px rgba(0, 0, 0, 0.2);
}

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

.mobile-filter-header {
  padding: 18px 20px;
  padding-top: calc(18px + env(safe-area-inset-top, 0px));
  border-bottom: 1px solid var(--filter-border-subtle);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: #FFFDF8;
}

.mobile-filter-body {
  padding: 20px;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  flex: 1;
}

.mobile-filter-footer {
  padding: 16px 20px;
  padding-bottom: calc(16px + env(safe-area-inset-bottom, 0px));
  border-top: 1px solid var(--filter-border-subtle);
  background: #FFFDF8;
  display: flex;
  gap: 12px;
  box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.04);
}

/* 10. PRODUCT GRID LOADING SKELETON & ANIMATIONS */
.product-grid-loading {
  opacity: 0.6;
  pointer-events: none;
  transition: opacity 200ms ease;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

/* Responsive adjustments */
@media (max-width: 992px) {
  #desktop-sidebar-filters {
    display: none;
  }
  #mobile-filter-trigger {
    display: inline-flex !important;
  }
}