/**
 * Smart Filters CSS - Современные стили для фильтров каталога
 * Версия: 3.0 
 * Архитектура: BEM + CSS Variables + Modern UX
 */

/* Import shared utilities to avoid duplication */
@import url('shared-utilities.css');

/* ===== CSS ПЕРЕМЕННЫЕ ===== */
:root {
  /* Цветовая схема Dark Theme для Vape Shop */
  --sf-primary: #8b5cf6;
  --sf-primary-hover: #7c3aed;
  --sf-primary-light: #a855f7;
  
  --sf-bg-primary: #1f2937;
  --sf-bg-secondary: #374151;
  --sf-bg-tertiary: #4b5563;
  
  --sf-text-primary: #f9fafb;
  --sf-text-secondary: #d1d5db;
  --sf-text-tertiary: #9ca3af;
  
  --sf-success: #10b981;
  --sf-error: #ef4444;
  --sf-border: #4b5563;
  
  /* Размеры */
  --sf-border-radius: 0.75rem;
  --sf-border-radius-sm: 0.5rem;
  --sf-spacing-xs: 0.25rem;
  --sf-spacing-sm: 0.5rem;
  --sf-spacing-md: 1rem;
  --sf-spacing-lg: 1.5rem;
  
  /* Анимации */
  --sf-transition: 0.3s ease-in-out;
  --sf-transition-fast: 0.15s ease-in-out;
  
  /* Тени */
  --sf-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --sf-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  
  /* Z-index */
  --sf-z-backdrop: 40;
  --sf-z-panel: 50;
}

/* ===== БАЗОВЫЕ КОМПОНЕНТЫ ===== */

/* Кнопка */
.sf-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--sf-spacing-sm);
  padding: var(--sf-spacing-sm) var(--sf-spacing-md);
  border-radius: var(--sf-border-radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
  transition: all var(--sf-transition-fast);
  cursor: pointer;
  border: none;
  text-decoration: none;
}

.sf-btn-primary {
  background-color: var(--sf-primary);
  color: var(--sf-text-primary);
  box-shadow: var(--sf-shadow);
}

.sf-btn-primary:hover {
  background-color: var(--sf-primary-hover);
  transform: translateY(-1px);
}

.sf-btn-secondary {
  background-color: var(--sf-bg-secondary);
  color: var(--sf-text-secondary);
  border: 1px solid var(--sf-border);
}

.sf-btn-secondary:hover {
  background-color: var(--sf-bg-tertiary);
  color: var(--sf-text-primary);
}

/* Badge */
.sf-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.25rem;
  height: 1.25rem;
  padding: 0 var(--sf-spacing-xs);
  background-color: var(--sf-primary);
  color: var(--sf-text-primary);
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 0.625rem;
  transition: all var(--sf-transition-fast);
}

/* Утилиты */
.sf-hidden { display: none !important; }
/* .hidden - removed to avoid conflict with Tailwind responsive classes */
.sf-flex { display: flex; }
.sf-items-center { align-items: center; }
.sf-gap-2 { gap: var(--sf-spacing-sm); }
.sf-gap-3 { gap: var(--sf-spacing-md); }

/* Анимации */
@keyframes sf-fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes sf-slideUp {
  from { opacity: 0; transform: translateY(1rem); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes sf-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.8; transform: scale(1.05); }
}

.sf-fade-in { animation: sf-fadeIn var(--sf-transition) ease-out; }
.sf-slide-up { animation: sf-slideUp var(--sf-transition) ease-out; }
.sf-pulse { animation: sf-pulse 2s infinite; }

/* ===== ПЛЕЙСХОЛДЕРЫ ДЛЯ СЛЕДУЮЩИХ ШАГОВ ===== */

/* ШАГ 2: Smart Filter Panel */
#smart-filters-panel {
  position: fixed;
  inset: 0;
  z-index: var(--sf-z-panel);
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--sf-spacing-lg);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--sf-transition) ease-out, visibility var(--sf-transition) ease-out;
}

#smart-filters-panel:not(.hidden) {
  display: flex;
}

#smart-filters-panel.show {
  opacity: 1;
  visibility: visible;
}

.smart-backdrop {
  position: absolute;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--sf-transition) ease-out, visibility var(--sf-transition) ease-out;
  z-index: var(--sf-z-backdrop);
}

#smart-filters-panel.show .smart-backdrop {
  opacity: 1;
  visibility: visible;
}

.smart-panel-container {
  position: relative;
  z-index: calc(var(--sf-z-panel) + 1);
  width: 100%;
  max-width: 480px;
  max-height: 85vh;
  background-color: var(--sf-bg-primary);
  border: 1px solid var(--sf-border);
  border-radius: var(--sf-border-radius);
  box-shadow: var(--sf-shadow-lg);
  transform: scale(0.95);
  opacity: 0;
  transition: all var(--sf-transition) ease-out;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

#smart-filters-panel.show .smart-panel-container {
  transform: scale(1);
  opacity: 1;
}

/* Header панели */
.smart-panel-header {
  flex-shrink: 0;
  padding: var(--sf-spacing-lg);
  border-bottom: 1px solid var(--sf-border);
  background-color: var(--sf-bg-secondary);
}

.smart-panel-header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sf-spacing-md);
}

.smart-panel-title-section {
  display: flex;
  align-items: center;
  gap: var(--sf-spacing-md);
}

.smart-panel-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  background-color: var(--sf-primary);
  border-radius: var(--sf-border-radius-sm);
  color: var(--sf-text-primary);
}

.smart-panel-icon svg {
  width: 1.25rem;
  height: 1.25rem;
}

.smart-panel-title-section h2 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--sf-text-primary);
  margin: 0;
}

.smart-panel-title-section p {
  font-size: 0.875rem;
  color: var(--sf-text-tertiary);
  margin: 0;
}

.smart-panel-controls {
  display: flex;
  align-items: center;
  gap: var(--sf-spacing-md);
}

.smart-panel-results {
  display: flex;
  align-items: center;
  gap: var(--sf-spacing-xs);
  font-size: 0.875rem;
  color: var(--sf-text-secondary);
}

.smart-panel-results-dot {
  width: 0.5rem;
  height: 0.5rem;
  background-color: var(--sf-success);
  border-radius: 50%;
  animation: sf-pulse 2s infinite;
}

.smart-panel-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border-radius: var(--sf-border-radius-sm);
  background-color: transparent;
  color: var(--sf-text-tertiary);
  transition: all var(--sf-transition-fast);
  cursor: pointer;
}

.smart-panel-close:hover {
  background-color: var(--sf-bg-tertiary);
  color: var(--sf-text-primary);
}

.smart-panel-close svg {
  width: 1rem;
  height: 1rem;
}

/* Content и Footer панели */
.smart-filters-form {
  display: flex;
  flex-direction: column;
  height: 100%;
  min-height: 0;
}

.smart-filters-content {
  flex: 1;
  overflow-y: auto;
  padding: var(--sf-spacing-lg);
  min-height: 0;
}

.smart-filters-footer {
  flex-shrink: 0;
  padding: var(--sf-spacing-lg);
  border-top: 1px solid var(--sf-border);
  background-color: var(--sf-bg-secondary);
}

.smart-filters-footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sf-spacing-md);
}

.smart-filters-actions {
  display: flex;
  gap: var(--sf-spacing-sm);
}

/* Стили для кнопок в footer */
.smart-filters-apply-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--sf-spacing-sm);
  padding: var(--sf-spacing-sm) var(--sf-spacing-md);
  background-color: var(--sf-primary);
  color: var(--sf-text-primary);
  border: none;
  border-radius: var(--sf-border-radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--sf-transition-fast);
  box-shadow: var(--sf-shadow);
}

.smart-filters-apply-btn:hover {
  background-color: var(--sf-primary-hover);
  transform: translateY(-1px);
}

.smart-filters-apply-btn svg {
  width: 1rem;
  height: 1rem;
}

.smart-filters-clear-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--sf-spacing-sm);
  padding: var(--sf-spacing-sm) var(--sf-spacing-md);
  background-color: var(--sf-bg-secondary);
  color: var(--sf-text-secondary);
  border: 1px solid var(--sf-border);
  border-radius: var(--sf-border-radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--sf-transition-fast);
}

.smart-filters-clear-btn:hover {
  background-color: var(--sf-bg-tertiary);
  color: var(--sf-text-primary);
  border-color: var(--sf-border-light);
}

.smart-filters-clear-btn svg {
  width: 1rem;
  height: 1rem;
}

/* Стили для toggle секции */
.smart-filters-toggle-section {
  display: flex;
  flex-direction: column;
  gap: var(--sf-spacing-xs);
}

.smart-filters-toggle-label {
  display: flex;
  align-items: center;
  gap: var(--sf-spacing-sm);
  cursor: pointer;
  font-size: 0.875rem;
  color: var(--sf-text-secondary);
}

.smart-filters-toggle-label input[type="checkbox"] {
  width: 1rem;
  height: 1rem;
  accent-color: var(--sf-primary);
}

.smart-filters-toggle-hint {
  font-size: 0.75rem;
  color: var(--sf-text-tertiary);
}

/* ШАГ 4: Active Filter Chips */
.active-filters-container {
  margin: var(--sf-spacing-md) 0;
  padding: var(--sf-spacing-sm) 0;
  border-top: 1px solid var(--sf-border);
  border-bottom: 1px solid var(--sf-border);
}

.active-filters-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--sf-spacing-sm);
}

.active-filters-title {
  display: flex;
  align-items: center;
  gap: var(--sf-spacing-sm);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--sf-text-secondary);
}

.active-filters-title svg {
  width: 1rem;
  height: 1rem;
  color: var(--sf-primary);
}

.active-filters-count {
  font-size: 0.75rem;
  color: var(--sf-text-tertiary);
}

/* Note: .active-filters-clear-all moved to shared-utilities.css to avoid duplication */

.active-filters-chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sf-spacing-sm);
  min-height: 2rem;
}

.filter-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--sf-spacing-xs);
  padding: var(--sf-spacing-xs) var(--sf-spacing-sm);
  background: linear-gradient(135deg, var(--sf-primary), var(--sf-primary-hover));
  color: var(--sf-text-primary);
  border-radius: var(--sf-border-radius-full);
  font-size: 0.75rem;
  font-weight: 500;
  box-shadow: var(--sf-shadow-sm);
  cursor: pointer;
  transition: all var(--sf-transition-fast);
  animation: filterChipSlideIn 0.3s ease-out;
  position: relative;
  overflow: hidden;
}

.filter-chip::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left 0.5s;
}

.filter-chip:hover::before {
  left: 100%;
}

.filter-chip:hover {
  transform: translateY(-1px) scale(1.02);
  box-shadow: var(--sf-shadow);
}

.filter-chip-content {
  display: flex;
  align-items: center;
  gap: var(--sf-spacing-xs);
}

.filter-chip-label {
  font-weight: 500;
  max-width: 120px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.filter-chip-value {
  font-weight: 400;
  opacity: 0.9;
  max-width: 100px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.filter-chip-remove {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 1rem;
  height: 1rem;
  background-color: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  margin-left: var(--sf-spacing-xs);
  transition: all var(--sf-transition-fast);
  flex-shrink: 0;
}

.filter-chip-remove:hover {
  background-color: rgba(255, 255, 255, 0.3);
  transform: scale(1.1);
}

.filter-chip-remove svg {
  width: 0.75rem;
  height: 0.75rem;
  stroke-width: 2;
}

.filter-chip.removing {
  animation: filterChipSlideOut 0.2s ease-in forwards;
}

.active-filters-empty {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--sf-spacing-md);
  color: var(--sf-text-tertiary);
  font-size: 0.875rem;
  font-style: italic;
}

/* Анимации для чипов */
@keyframes filterChipSlideIn {
  from {
    opacity: 0;
    transform: translateX(-20px) scale(0.8);
  }
  to {
    opacity: 1;
    transform: translateX(0) scale(1);
  }
}

@keyframes filterChipSlideOut {
  from {
    opacity: 1;
    transform: translateX(0) scale(1);
  }
  to {
    opacity: 0;
    transform: translateX(20px) scale(0.8);
  }
}

/* Адаптивность чипов */
@media (max-width: 768px) {
  .filter-chip {
    font-size: 0.7rem;
    padding: 6px 10px;
  }
  
  .filter-chip-label,
  .filter-chip-value {
    max-width: 80px;
  }
  
  .active-filters-chips {
    gap: 6px;
  }
}

/* ШАГ 5: Мобильная адаптация */
@media (max-width: 1023px) {
  /* Мобильная панель как bottom sheet */
  #smart-filters-panel {
    align-items: flex-end;
    padding: 0;
  }
  
  .smart-panel-container {
    width: 100%;
    max-width: 100%;
    max-height: 85vh;
    margin: 0;
    border-radius: var(--sf-border-radius-lg) var(--sf-border-radius-lg) 0 0;
    transform: translateY(100%);
    transition: transform var(--sf-transition) ease-out;
  }
  
  #smart-filters-panel.show .smart-panel-container {
    transform: translateY(0);
  }
  
  /* Мобильный хедер */
  .smart-panel-header {
    padding: var(--sf-spacing-lg) var(--sf-spacing-md);
    border-bottom: 2px solid var(--sf-border);
    position: sticky;
    top: 0;
    z-index: 10;
    background: var(--sf-bg-primary);
  }
  
  .smart-panel-header-content {
    flex-direction: column;
    gap: var(--sf-spacing-sm);
  }
  
  .smart-panel-title-section {
    width: 100%;
    justify-content: center;
    text-align: center;
  }
  
  .smart-panel-title-section h2 {
    font-size: 1.25rem;
  }
  
  .smart-panel-title-section p {
    font-size: 0.875rem;
  }
  
  .smart-panel-controls {
    width: 100%;
    justify-content: space-between;
  }
  
  .smart-panel-close {
    position: absolute;
    top: var(--sf-spacing-md);
    right: var(--sf-spacing-md);
    width: 2.5rem;
    height: 2.5rem;
  }
  
  /* Мобильный контент */
  .smart-filters-content {
    padding: var(--sf-spacing-md);
    max-height: calc(85vh - 200px);
    overflow-y: auto;
  }
  
  /* Мобильные фильтры */
  .filter-group {
    border-radius: var(--sf-border-radius-md);
    margin-bottom: var(--sf-spacing-md);
  }
  
  .filter-group-header {
    padding: var(--sf-spacing-md);
    min-height: 3rem;
  }
  
  .filter-group-title {
    font-size: 1rem;
  }
  
  .filter-group-collapse-btn {
    width: 2rem;
    height: 2rem;
  }
  
  .filter-option {
    padding: var(--sf-spacing-sm) var(--sf-spacing-md);
    min-height: 2.5rem;
  }
  
  .filter-option-dot {
    width: 1.25rem;
    height: 1.25rem;
  }
  
  .filter-option-text {
    font-size: 0.875rem;
  }
  
  /* Мобильный footer */
  .smart-filters-footer {
    padding: var(--sf-spacing-md);
    border-top: 2px solid var(--sf-border);
    position: sticky;
    bottom: 0;
    background: var(--sf-bg-primary);
  }
  
  .smart-filters-footer-content {
    flex-direction: column;
    gap: var(--sf-spacing-md);
  }
  
  .smart-filters-actions {
    flex-direction: column;
    gap: var(--sf-spacing-sm);
  }
  
  .smart-filters-apply-btn,
  .smart-filters-clear-btn {
    width: 100%;
    padding: var(--sf-spacing-md);
    font-size: 1rem;
    min-height: 3rem;
  }
  
  /* Мобильные активные фильтры */
  .active-filters-container {
    margin: var(--sf-spacing-sm) 0;
    padding: var(--sf-spacing-sm);
  }
  
  .active-filters-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--sf-spacing-xs);
  }
  
  .active-filters-title {
    font-size: 0.875rem;
  }
  
  .active-filters-meta {
    display: flex;
    justify-content: space-between;
    width: 100%;
    align-items: center;
  }
  
  .filter-chip {
    font-size: 0.75rem;
    padding: 6px 12px;
    min-height: 2rem;
  }
  
  .filter-chip-remove {
    width: 1.25rem;
    height: 1.25rem;
  }
}

/* Мобильные навигационные badges */
@media (max-width: 767px) {
  .mobile-nav-filters {
    position: relative;
  }
  
  .mobile-nav-filters .badge {
    position: absolute;
    top: -8px;
    right: -8px;
    background: linear-gradient(135deg, var(--sf-primary), var(--sf-primary-hover));
    color: var(--sf-text-primary);
    border-radius: 50%;
    width: 1.25rem;
    height: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 600;
    box-shadow: var(--sf-shadow-sm);
    animation: badgePulse 2s infinite;
  }
  
  .mobile-nav-filters .badge.hidden {
    display: none;
  }
  
  /* Пульсация для badge */
  @keyframes badgePulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
  }
  
  /* Touch-friendly элементы */
  .mobile-nav-filters button,
  .filter-option,
  .filter-group-header,
  .filter-chip,
  .smart-panel-close {
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
  }
  
  /* Увеличенные touch targets */
  .smart-panel-close {
    width: 2.75rem;
    height: 2.75rem;
  }
  
  .filter-group-collapse-btn {
    width: 2.25rem;
    height: 2.25rem;
  }
  
  .filter-option-dot {
    width: 1.5rem;
    height: 1.5rem;
  }
  
  .filter-chip-remove {
    width: 1.5rem;
    height: 1.5rem;
  }
}

/* Дополнительные мобильные улучшения */
@media (max-width: 480px) {
  .smart-panel-container {
    max-height: 90vh;
  }
  
  .smart-filters-content {
    max-height: calc(90vh - 180px);
  }
  
  .filter-group {
    margin-bottom: var(--sf-spacing-sm);
  }
  
  .filter-group-header {
    padding: 12px;
  }
  
  .filter-option {
    padding: 10px 12px;
    min-height: 2.25rem;
  }
  
  .filter-chip {
    font-size: 0.7rem;
    padding: 4px 8px;
  }
  
  .active-filters-chips {
    gap: 6px;
  }
}

/* Landscape режим для телефонов */
@media (max-width: 767px) and (orientation: landscape) {
  .smart-panel-container {
    max-height: 95vh;
  }
  
  .smart-filters-content {
    max-height: calc(95vh - 160px);
  }
  
  .smart-panel-header {
    padding: var(--sf-spacing-sm) var(--sf-spacing-md);
  }
  
  .smart-filters-footer {
    padding: var(--sf-spacing-sm) var(--sf-spacing-md);
  }
}

/* Swipe индикатор для мобильной панели */
@media (max-width: 1023px) {
  .smart-panel-container::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 36px;
    height: 4px;
    background-color: var(--sf-text-tertiary);
    border-radius: 2px;
    opacity: 0.5;
  }
  
  .smart-panel-header {
    padding-top: calc(var(--sf-spacing-lg) + 12px);
  }
}

/* ШАГ 3: Filter Groups & Options */
.filter-group {
  background-color: var(--sf-bg-secondary);
  border: 1px solid var(--sf-border);
  border-radius: var(--sf-border-radius);
  margin-bottom: var(--sf-spacing-md);
  overflow: hidden;
  transition: all var(--sf-transition);
}

.filter-group:hover {
  border-color: var(--sf-border-light);
  box-shadow: var(--sf-shadow);
}

/* Header группы фильтров */
.filter-group-header {
  padding: var(--sf-spacing-md);
  cursor: pointer;
  transition: background-color var(--sf-transition);
  border-bottom: 1px solid transparent;
}

.filter-group-header:hover {
  background-color: var(--sf-bg-tertiary);
}

.filter-group-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 0;
  font-size: 1rem;
  font-weight: 600;
  color: var(--sf-text-primary);
}

.filter-group-title > div {
  display: flex;
  align-items: center;
  gap: var(--sf-spacing-sm);
}

.filter-group-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 1.5rem;
  height: 1.5rem;
  border-radius: var(--sf-border-radius-sm);
  background-color: var(--sf-primary);
  color: var(--sf-text-primary);
  flex-shrink: 0;
}

.filter-group-icon svg {
  width: 0.875rem;
  height: 0.875rem;
}

.filter-group-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.5rem;
  height: 1.5rem;
  padding: 0 var(--sf-spacing-xs);
  background-color: var(--sf-bg-tertiary);
  color: var(--sf-text-secondary);
  font-size: 0.75rem;
  font-weight: 500;
  border-radius: var(--sf-border-radius-sm);
}

.filter-group-collapse-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 1.5rem;
  height: 1.5rem;
  color: var(--sf-text-tertiary);
  transition: all var(--sf-transition-fast);
  cursor: pointer;
}

.filter-group-collapse-btn:hover {
  color: var(--sf-text-primary);
  background-color: var(--sf-bg-tertiary);
  border-radius: var(--sf-border-radius-sm);
}

.filter-group-toggle-icon {
  width: 1rem;
  height: 1rem;
  transition: transform var(--sf-transition);
}

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

/* Поиск в группах */
.filter-group-search-container {
  padding: 0 var(--sf-spacing-md) var(--sf-spacing-md);
  border-bottom: 1px solid var(--sf-border);
}

.filter-group-search-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.filter-group-search {
  width: 100%;
  padding: var(--sf-spacing-sm) var(--sf-spacing-md);
  padding-left: 2.5rem;
  background-color: var(--sf-bg-primary);
  border: 1px solid var(--sf-border);
  border-radius: var(--sf-border-radius-sm);
  color: var(--sf-text-primary);
  font-size: 0.875rem;
  transition: all var(--sf-transition-fast);
}

.filter-group-search:focus {
  outline: none;
  border-color: var(--sf-primary);
  box-shadow: 0 0 0 2px rgba(139, 92, 246, 0.2);
}

.filter-group-search::placeholder {
  color: var(--sf-text-tertiary);
}

.filter-group-search-icon {
  position: absolute;
  left: var(--sf-spacing-sm);
  width: 1rem;
  height: 1rem;
  color: var(--sf-text-tertiary);
  pointer-events: none;
}

/* Контейнер опций */
.filter-group-options-container {
  transition: all var(--sf-transition);
  overflow: hidden;
}

.filter-group-options-container.sf-hidden {
  display: none;
}

.filter-group-options {
  padding: var(--sf-spacing-md);
  display: flex;
  flex-direction: column;
  gap: var(--sf-spacing-xs);
}

/* Кнопка "показать еще" */
.filter-group-show-more {
  padding: 0 var(--sf-spacing-md) var(--sf-spacing-md);
  border-top: 1px solid var(--sf-border);
}

.filter-show-more-btn {
  width: 100%;
  padding: var(--sf-spacing-sm);
  background-color: transparent;
  color: var(--sf-text-tertiary);
  font-size: 0.875rem;
  text-align: center;
  transition: all var(--sf-transition-fast);
  cursor: pointer;
  border-radius: var(--sf-border-radius-sm);
}

.filter-show-more-btn:hover {
  background-color: var(--sf-bg-tertiary);
  color: var(--sf-text-primary);
}

.filter-hidden-options {
  display: flex;
  flex-direction: column;
  gap: var(--sf-spacing-xs);
}

.filter-hidden-options.sf-hidden,
.filter-hidden-options.hidden {
  display: none !important;
}

/* Опции фильтров (кастомные чекбоксы) */
.filter-option {
  display: flex;
  align-items: center;
  gap: var(--sf-spacing-sm);
  padding: var(--sf-spacing-sm);
  border-radius: var(--sf-border-radius-sm);
  cursor: pointer;
  transition: all var(--sf-transition-fast);
  position: relative;
  min-height: 2.5rem;
}

.filter-option:hover {
  background-color: var(--sf-bg-primary);
}

.filter-option:has(input:checked) {
  background-color: rgba(139, 92, 246, 0.1);
  border: 1px solid rgba(139, 92, 246, 0.3);
}

/* Скрытый оригинальный чекбокс */
.filter-option input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

/* Уровневые индикаторы */
.filter-option-dot {
  width: 0.75rem;
  height: 0.75rem;
  border: 2px solid var(--sf-border);
  border-radius: 50%;
  flex-shrink: 0;
  position: relative;
  transition: all var(--sf-transition-fast);
}

.filter-option:hover .filter-option-dot {
  border-color: var(--sf-border-light);
}

.filter-option input:checked + .filter-option-dot {
  border-color: var(--sf-primary);
  background-color: var(--sf-primary);
}

.filter-option input:checked + .filter-option-dot::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0.25rem;
  height: 0.25rem;
  background-color: white;
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

/* Текст опции */
.filter-option-text {
  flex: 1;
  min-width: 0;
}

.filter-option-text span {
  display: block;
  color: var(--sf-text-secondary);
  font-size: 0.875rem;
  line-height: 1.4;
  transition: color var(--sf-transition-fast);
}

.filter-option:hover .filter-option-text span {
  color: var(--sf-text-primary);
}

.filter-option input:checked ~ .filter-option-text span {
  color: var(--sf-text-primary);
  font-weight: 500;
}

/* Счетчик опции */
.filter-option-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.25rem;
  height: 1.25rem;
  padding: 0 var(--sf-spacing-xs);
  background-color: var(--sf-bg-tertiary);
  color: var(--sf-text-tertiary);
  font-size: 0.75rem;
  font-weight: 500;
  border-radius: var(--sf-border-radius-sm);
  transition: all var(--sf-transition-fast);
}

.filter-option:hover .filter-option-count {
  background-color: var(--sf-bg-light);
  color: var(--sf-text-secondary);
}

.filter-option input:checked ~ .filter-option-count {
  background-color: var(--sf-primary);
  color: var(--sf-text-primary);
}

/* Уровни иерархии */
.filter-option-level-0 {
  margin-left: 0;
}

.filter-option-level-1 {
  margin-left: var(--sf-spacing-md);
  border-left: 2px solid var(--sf-border);
  padding-left: var(--sf-spacing-md);
}

.filter-option-level-2 {
  margin-left: calc(var(--sf-spacing-md) * 2);
  border-left: 2px solid var(--sf-border);
  padding-left: var(--sf-spacing-md);
  opacity: 0.8;
}

.filter-option-level-1 .filter-option-dot,
.filter-option-level-2 .filter-option-dot {
  width: 0.5rem;
  height: 0.5rem;
  border-width: 1px;
}

/* ШАГ 4: Active Filter Chips - ГОТОВО */
/* Чипы уже реализованы выше в файле */

/* ШАГ 5: Mobile Navigation - ГОТОВО */
/* Мобильная кнопка реализована в base.html и обрабатывается в MobileNavFilters.js */

/* ===== ШАГ 6: МИКРОАНИМАЦИИ И ПОЛИРОВКА ===== */

/* Продвинутые hover эффекты */
.sf-interactive {
  position: relative;
  overflow: hidden;
  transition: all var(--sf-transition) ease-out;
}

.sf-interactive::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, 
    transparent, 
    rgba(139, 92, 246, 0.1), 
    transparent
  );
  transition: left 0.6s ease-in-out;
  z-index: 1;
}

.sf-interactive:hover::before {
  left: 100%;
}

/* Улучшенные hover эффекты для кнопок */
.sf-btn {
  position: relative;
  overflow: hidden;
  transform: translateY(0);
  box-shadow: var(--sf-shadow);
}

.sf-btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at center, 
    rgba(255, 255, 255, 0.1) 0%, 
    transparent 70%
  );
  opacity: 0;
  transition: opacity var(--sf-transition-fast);
}

.sf-btn:hover::after {
  opacity: 1;
}

.sf-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px -5px rgba(139, 92, 246, 0.3);
}

.sf-btn:active {
  transform: translateY(-1px);
  transition: transform 0.1s ease-out;
}

/* Анимированные счетчики */
.sf-counter {
  display: inline-block;
  font-variant-numeric: tabular-nums;
  transition: all var(--sf-transition) ease-out;
}

.sf-counter.updating {
  animation: counterPulse 0.6s ease-out;
}

@keyframes counterPulse {
  0% { transform: scale(1); }
  25% { transform: scale(1.1); color: var(--sf-primary); }
  50% { transform: scale(0.95); }
  100% { transform: scale(1); }
}

/* Улучшенные pulse эффекты для badges */
.sf-badge.pulse {
  animation: advancedPulse 2s infinite;
}

@keyframes advancedPulse {
  0%, 100% { 
    transform: scale(1); 
    box-shadow: 0 0 0 0 rgba(139, 92, 246, 0.7);
  }
  25% { 
    transform: scale(1.05); 
    box-shadow: 0 0 0 4px rgba(139, 92, 246, 0.4);
  }
  50% { 
    transform: scale(1.1); 
    box-shadow: 0 0 0 8px rgba(139, 92, 246, 0.2);
  }
  75% { 
    transform: scale(1.05); 
    box-shadow: 0 0 0 4px rgba(139, 92, 246, 0.1);
  }
}

/* Продвинутые loading состояния */
.sf-loading-dots {
  display: inline-flex;
  align-items: center;
  gap: 2px;
}

.sf-loading-dots::before,
.sf-loading-dots::after {
  content: '';
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background-color: currentColor;
  animation: loadingDots 1.4s infinite ease-in-out;
}

.sf-loading-dots::before {
  animation-delay: -0.32s;
}

.sf-loading-dots::after {
  animation-delay: -0.16s;
}

@keyframes loadingDots {
  0%, 80%, 100% { opacity: 0.3; transform: scale(0.8); }
  40% { opacity: 1; transform: scale(1); }
}

/* Скелетон для loading состояний */
.sf-skeleton {
  background: linear-gradient(90deg,
    var(--sf-bg-tertiary) 25%,
    var(--sf-bg-secondary) 50%,
    var(--sf-bg-tertiary) 75%
  );
  background-size: 200% 100%;
  animation: skeletonShimmer 1.5s infinite;
  border-radius: var(--sf-border-radius-sm);
}

@keyframes skeletonShimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* Улучшенные transitions для групп фильтров */
.filter-group {
  transition: all var(--sf-transition) ease-out;
}

.filter-group:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px -2px rgba(0, 0, 0, 0.1);
}

.filter-group-header {
  position: relative;
}

.filter-group-header::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--sf-primary), var(--sf-primary-light));
  transition: width var(--sf-transition) ease-out;
}

.filter-group:hover .filter-group-header::before {
  width: 100%;
}

/* Анимации для collapse/expand */
.filter-group-options-container {
  transition: all var(--sf-transition) ease-out;
  transform-origin: top;
}

.filter-group-options-container.collapsing {
  animation: collapseSmooth var(--sf-transition) ease-out forwards;
}

.filter-group-options-container.expanding {
  animation: expandSmooth var(--sf-transition) ease-out forwards;
}

@keyframes collapseSmooth {
  0% { 
    opacity: 1; 
    transform: scaleY(1); 
    max-height: 500px;
  }
  50% { 
    opacity: 0.5; 
    transform: scaleY(0.8);
  }
  100% { 
    opacity: 0; 
    transform: scaleY(0); 
    max-height: 0;
  }
}

@keyframes expandSmooth {
  0% { 
    opacity: 0; 
    transform: scaleY(0); 
    max-height: 0;
  }
  50% { 
    opacity: 0.5; 
    transform: scaleY(0.8);
  }
  100% { 
    opacity: 1; 
    transform: scaleY(1); 
    max-height: 500px;
  }
}

/* Улучшенные чекбокс анимации */
.filter-option-dot {
  position: relative;
  transition: all var(--sf-transition) ease-out;
}

.filter-option-dot::before {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: 50%;
  background: conic-gradient(from 0deg, 
    var(--sf-primary), 
    var(--sf-primary-light), 
    var(--sf-primary)
  );
  opacity: 0;
  animation: rotateGradient 2s linear infinite;
  z-index: -1;
}

.filter-option:hover .filter-option-dot::before {
  opacity: 0.3;
}

.filter-option input:checked ~ .filter-option-dot::before {
  opacity: 0.6;
}

@keyframes rotateGradient {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Анимации для чипов фильтров */
.filter-chip {
  transition: all var(--sf-transition) ease-out;
  animation: chipSlideIn 0.4s ease-out;
}

.filter-chip:hover {
  transform: translateY(-1px) scale(1.02);
  box-shadow: 0 4px 12px -2px rgba(139, 92, 246, 0.3);
}

.filter-chip.removing {
  animation: chipSlideOut 0.3s ease-in forwards;
}

@keyframes chipSlideIn {
  0% { 
    opacity: 0; 
    transform: translateX(-20px) scale(0.8);
  }
  60% { 
    transform: translateX(5px) scale(1.05);
  }
  100% { 
    opacity: 1; 
    transform: translateX(0) scale(1);
  }
}

@keyframes chipSlideOut {
  0% { 
    opacity: 1; 
    transform: scale(1);
  }
  50% { 
    transform: scale(0.9);
  }
  100% { 
    opacity: 0; 
    transform: translateX(-20px) scale(0.8);
  }
}

/* Эффекты для панели фильтров */
.smart-panel-container {
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.smart-panel-container::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, 
    rgba(139, 92, 246, 0.3), 
    rgba(124, 58, 237, 0.2), 
    rgba(168, 85, 247, 0.3)
  );
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask-composite: exclude;
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: destination-out;
  z-index: -1;
}

/* Улучшенные эффекты для кнопки закрытия */
.smart-panel-close {
  position: relative;
  transition: all var(--sf-transition) ease-out;
}

.smart-panel-close::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: radial-gradient(circle, 
    rgba(239, 68, 68, 0.1) 0%, 
    transparent 70%
  );
  transform: scale(0);
  transition: transform var(--sf-transition-fast) ease-out;
}

.smart-panel-close:hover::before {
  transform: scale(1);
}

.smart-panel-close:hover {
  transform: rotate(90deg);
  background-color: rgba(239, 68, 68, 0.1);
}

/* Анимации для результатов поиска в группах */
.filter-group-search-wrapper {
  position: relative;
}

.filter-group-search-wrapper::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--sf-primary), transparent);
  transition: width var(--sf-transition) ease-out;
}

.filter-group-search:focus + .filter-group-search-wrapper::after {
  width: 100%;
}

/* Продвинутые эффекты для мобильной кнопки фильтров */
@media (max-width: 767px) {
  #mobile-filters-btn {
    transition: all var(--sf-transition) ease-out;
    position: relative;
  }
  
  #mobile-filters-btn::before {
    content: '';
    position: absolute;
    inset: -2px;
    border-radius: 50%;
    background: conic-gradient(from 0deg, 
      var(--sf-primary), 
      transparent, 
      var(--sf-primary)
    );
    opacity: 0;
    animation: mobileButtonGlow 3s linear infinite;
    z-index: -1;
  }
  
  #mobile-filters-btn.has-filters::before {
    opacity: 1;
  }
  
  #mobile-filters-btn:active {
    transform: scale(0.95);
  }
  
  .filter-badge {
    transition: all var(--sf-transition-fast) ease-out;
    animation: badgeFloat 2s ease-in-out infinite;
  }
  
  .filter-badge.updated {
    animation: badgeUpdate 0.6s ease-out;
  }
}

@keyframes mobileButtonGlow {
  0%, 100% { transform: rotate(0deg); opacity: 0.3; }
  50% { transform: rotate(180deg); opacity: 0.7; }
}

@keyframes badgeFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-2px); }
}

@keyframes badgeUpdate {
  0% { transform: scale(1); }
  25% { transform: scale(1.3); background-color: var(--sf-success); }
  50% { transform: scale(0.9); }
  100% { transform: scale(1); }
}

/* Эффекты для показа/скрытия дополнительных опций */
.filter-show-more-btn {
  position: relative;
  overflow: hidden;
  transition: all var(--sf-transition) ease-out;
}

.filter-show-more-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, 
    transparent, 
    rgba(255, 255, 255, 0.1), 
    transparent
  );
  transition: left 0.6s ease-in-out;
}

.filter-show-more-btn:hover::before {
  left: 100%;
}

/* Анимации для счетчиков опций */
.filter-option-count {
  position: relative;
  transition: all var(--sf-transition) ease-out;
}

.filter-option-count.updated {
  animation: countUpdate 0.5s ease-out;
}

@keyframes countUpdate {
  0% { transform: scale(1); }
  50% { 
    transform: scale(1.2); 
    background-color: var(--sf-primary);
    color: var(--sf-text-primary);
  }
  100% { transform: scale(1); }
}

/* Финальные полировочные эффекты */
.smart-filters-apply-btn.loading {
  position: relative;
  color: transparent;
}

.smart-filters-apply-btn.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 16px;
  height: 16px;
  margin: -8px 0 0 -8px;
  border: 2px solid transparent;
  border-top: 2px solid currentColor;
  border-radius: 50%;
  animation: buttonSpinner 1s linear infinite;
}

@keyframes buttonSpinner {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Hover эффекты для всей панели */
#smart-filters-panel.show .smart-panel-container {
  animation: panelEnhancedEntry 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes panelEnhancedEntry {
  0% { 
    opacity: 0; 
    transform: scale(0.8) translateY(50px); 
  }
  60% { 
    opacity: 0.8; 
    transform: scale(1.02) translateY(-10px); 
  }
  100% { 
    opacity: 1; 
    transform: scale(1) translateY(0); 
  }
}

/* Responsive */
@media (max-width: 768px) {
  :root {
    --sf-spacing-md: 0.75rem;
    --sf-spacing-lg: 1rem;
  }
  
  /* Мобильная адаптация панели */
  #smart-filters-panel {
    padding: 0;
    align-items: flex-end;
  }
  
  .smart-panel-container {
    max-width: 100%;
    max-height: 95vh;
    border-radius: var(--sf-border-radius) var(--sf-border-radius) 0 0;
    border-bottom: none;
  }
  
  .smart-panel-header {
    padding: var(--sf-spacing-md) var(--sf-spacing-lg);
  }
  
  .smart-panel-title-section {
    gap: var(--sf-spacing-sm);
  }
  
  .smart-panel-title-section h2 {
    font-size: 1.125rem;
  }
  
  .smart-filters-content {
    padding: var(--sf-spacing-md) var(--sf-spacing-lg);
  }
  
  .smart-filters-footer {
    padding: var(--sf-spacing-md) var(--sf-spacing-lg);
  }
  
  .smart-filters-footer-content {
    flex-direction: column;
    align-items: stretch;
    gap: var(--sf-spacing-sm);
  }
  
  .smart-filters-actions {
    width: 100%;
    justify-content: space-between;
  }
  
  /* Мобильная адаптация групп фильтров */
  .filter-group {
    margin-bottom: var(--sf-spacing-sm);
  }
  
  .filter-group-header {
    padding: var(--sf-spacing-sm) var(--sf-spacing-md);
  }
  
  .filter-group-title {
    font-size: 0.9375rem;
  }
  
  .filter-group-options {
    padding: var(--sf-spacing-sm) var(--sf-spacing-md);
  }
  
  .filter-option {
    min-height: 2.25rem;
  }
  
  .filter-group-search-container {
    padding: 0 var(--sf-spacing-md) var(--sf-spacing-sm);
  }
  
  .filter-group-show-more {
    padding: 0 var(--sf-spacing-md) var(--sf-spacing-sm);
  }
}

/* Оптимизация мобильной версии фильтров */
@media (max-width: 767px) {
  /* Скрываем десктопную кнопку фильтров на мобилке */
  .filters-control,
  #desktop-filter-trigger {
    display: none !important;
  }
  
  /* Оптимизируем размеры панели фильтров */
  .smart-panel-header {
    padding: 0.75rem 1rem !important;
  }
  
  .smart-panel-title-section h2 {
    font-size: 1rem !important;
  }
  
  .smart-panel-title-section p {
    font-size: 0.75rem !important;
  }
  
  /* Оптимизируем content область */
  .smart-filters-content {
    padding: 0.5rem 1rem !important;
    max-height: calc(100vh - 180px) !important; /* Больше места для контента */
  }
  
  /* Оптимизируем футер с кнопками */
  .smart-filters-footer {
    padding: 0.75rem 1rem !important;
    border-top: 1px solid var(--sf-border);
  }
  
  .smart-filters-footer-content {
    gap: 0.5rem !important;
  }
  
  /* Компактные кнопки */
  .smart-filters-apply-btn,
  .smart-filters-clear-btn {
    padding: 0.5rem 1rem !important;
    font-size: 0.875rem !important;
    min-height: 2.5rem !important;
  }
  
  /* Компактный toggle */
  .smart-filters-toggle-section {
    padding: 0.5rem 0 !important;
  }
  
  .smart-filters-toggle-label {
    font-size: 0.75rem !important;
  }
  
  .smart-filters-toggle-hint {
    font-size: 0.6875rem !important;
  }
  
  /* Оптимизируем группы фильтров */
  .filter-group {
    margin-bottom: 0.75rem !important;
  }
  
  .filter-group-header {
    padding: 0.5rem 0.75rem !important;
  }
  
  .filter-group-title {
    font-size: 0.875rem !important;
  }
  
  .filter-group-options {
    padding: 0.25rem 0.75rem !important;
  }
  
  /* Компактные опции фильтров */
  .filter-option {
    min-height: 2rem !important;
    padding: 0.25rem 0 !important;
  }
  
  .filter-option-text {
    font-size: 0.8125rem !important;
  }
  
  .filter-option-count {
    font-size: 0.75rem !important;
    padding: 0.125rem 0.375rem !important;
  }
  
  /* Компактный поиск */
  .filter-group-search-container {
    padding: 0 0.75rem 0.5rem !important;
  }
  
  .filter-group-search {
    height: 2rem !important;
    font-size: 0.8125rem !important;
  }
  
  /* Активные фильтры */
  .active-filters-container {
    margin: 0.5rem 0 !important;
  }
  
  .active-filters-header {
    padding: 0.5rem 0 !important;
  }
  
  .filter-chip {
    padding: 0.25rem 0.5rem !important;
    font-size: 0.75rem !important;
  }
}

/* Дополнительная оптимизация для очень маленьких экранов */
@media (max-width: 480px) {
  .smart-panel-container {
    margin: 0 !important;
    border-radius: 1rem 1rem 0 0 !important;
    max-height: 95vh !important;
  }
  
  .smart-filters-content {
    max-height: calc(100vh - 160px) !important;
  }
  
  .smart-filters-apply-btn,
  .smart-filters-clear-btn {
    font-size: 0.8125rem !important;
    min-height: 2.25rem !important;
  }
  
  .smart-filters-actions {
    justify-content: space-between !important;
  }
  
  .smart-filters-apply-btn {
    flex: 1 !important;
    margin-right: 0.5rem !important;
  }
  
  .smart-filters-clear-btn {
    flex: 0 0 auto !important;
    min-width: 4rem !important;
  }
}

/* ===== DESKTOP SIDEBAR STYLES (STEP 1) ===== */

/* Desktop layout containers */
@media (min-width: 1024px) {
  .catalog-desktop-layout {
    display: flex;
    gap: 2rem;
    align-items: flex-start;
  }
  
  .catalog-filters-sidebar {
    width: 22%;
    min-width: 280px;
    position: sticky;
    top: 2rem;
    max-height: calc(100vh - 4rem);
    background: var(--sf-bg-primary);
    border: 1px solid var(--sf-border);
    border-radius: var(--sf-border-radius);
    overflow: hidden;
    display: flex;
    flex-direction: column;
  }
  
  .catalog-products-area {
    flex: 1;
    min-width: 0; /* Prevent flex item from overflowing */
  }
  
  /* Quick filter chips */
  .catalog-quick-filters {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
  }
  
  .quick-filter-chip {
    position: relative;
    background: var(--sf-bg-secondary);
    border: 1px solid var(--sf-border);
    border-radius: var(--sf-border-radius-sm);
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    color: var(--sf-text-secondary);
    transition: all var(--sf-transition-fast);
    cursor: pointer;
    user-select: none;
    z-index: 100; /* Базовый z-index для chips */
  }
  
  .quick-filter-chip:hover {
    background: var(--sf-bg-tertiary);
    border-color: var(--sf-primary);
    color: var(--sf-text-primary);
    transform: translateY(-1px);
  }
  
  .quick-filter-chip.active {
    background: var(--sf-primary);
    border-color: var(--sf-primary);
    color: var(--sf-text-primary);
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.2);
  }
  
  .quick-filter-chip.has-dropdown {
    padding-right: 2.5rem;
  }
  
  .quick-filter-chip .chip-icon {
    width: 1rem;
    height: 1rem;
    margin-right: 0.5rem;
  }
  
  .quick-filter-chip .dropdown-icon {
    position: absolute;
    right: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    width: 0.75rem;
    height: 0.75rem;
    transition: transform var(--sf-transition-fast);
  }
  
  .quick-filter-chip.open .dropdown-icon {
    transform: translateY(-50%) rotate(180deg);
  }
  
  /* Quick filter dropdown */
  .quick-filter-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    margin-top: 0.5rem;
    background: var(--sf-bg-primary);
    border: 1px solid var(--sf-border);
    border-radius: var(--sf-border-radius-sm);
    box-shadow: var(--sf-shadow-lg);
    z-index: 1000; /* Увеличиваем z-index для правильного отображения */
    opacity: 0;
    visibility: hidden;
    transform: translateY(-0.5rem);
    transition: all var(--sf-transition-fast);
    max-height: 300px;
    overflow-y: auto;
  }
  
  .quick-filter-dropdown.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }
  
  .quick-filter-option {
    display: flex;
    align-items: center;
    padding: 0.75rem 1rem;
    color: var(--sf-text-secondary);
    transition: all var(--sf-transition-fast);
    cursor: pointer;
    border-bottom: 1px solid var(--sf-border);
  }
  
  .quick-filter-option:last-child {
    border-bottom: none;
  }
  
  .quick-filter-option:hover {
    background: var(--sf-bg-secondary);
    color: var(--sf-text-primary);
  }
  
  .quick-filter-option.selected {
    background: rgba(139, 92, 246, 0.1);
    color: var(--sf-primary);
  }
  
  .quick-filter-option input[type="checkbox"] {
    margin-right: 0.75rem;
    accent-color: var(--sf-primary);
  }
  
  /* Sidebar header */
  .sidebar-filters-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--sf-border);
    background: var(--sf-bg-secondary);
    flex-shrink: 0;
  }
  
  .sidebar-filters-title {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--sf-text-primary);
    margin-bottom: 0.5rem;
  }
  
  .sidebar-filters-title .icon {
    width: 1.25rem;
    height: 1.25rem;
    color: var(--sf-primary);
  }
  
  .sidebar-filters-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 0.75rem;
  }
  
  .sidebar-results-count {
    font-size: 0.875rem;
    color: var(--sf-text-tertiary);
  }
  
  .sidebar-clear-all {
    font-size: 0.875rem;
    color: var(--sf-primary);
    cursor: pointer;
    transition: color var(--sf-transition-fast);
  }
  
  .sidebar-clear-all:hover {
    color: var(--sf-primary-hover);
  }
  
  /* Sidebar content */
  .sidebar-filters-content {
    flex: 1;
    overflow-y: auto;
    padding: 0;
  }
  
  /* Desktop filter groups in sidebar */
  .sidebar-filters-content .filter-group {
    border-bottom: 1px solid var(--sf-border);
    margin: 0;
    border-radius: 0;
    background: transparent;
  }
  
  .sidebar-filters-content .filter-group:last-child {
    border-bottom: none;
  }
  
  .sidebar-filters-content .filter-group-header {
    padding: 1rem 1.5rem;
    background: transparent;
    border: none;
    border-radius: 0;
  }
  
  .sidebar-filters-content .filter-group-options-container {
    background: var(--sf-bg-primary);
  }
  
  .sidebar-filters-content .filter-group-options {
    padding: 0 1.5rem 1rem;
  }
  
  .sidebar-filters-content .filter-option {
    margin-bottom: 0.75rem;
    padding: 0.5rem 0;
  }
  
  .sidebar-filters-content .filter-group-search-container {
    padding: 0 1.5rem;
    margin-bottom: 1rem;
  }
  
  .sidebar-filters-content .filter-group-show-more {
    padding: 0 1.5rem 1rem;
  }
  
  /* Desktop active filters chips in sidebar */
  .sidebar-active-filters {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--sf-border);
    background: var(--sf-bg-secondary);
    flex-shrink: 0;
  }
  
  .sidebar-active-filters-title {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--sf-text-secondary);
    margin-bottom: 0.75rem;
  }
  
  .sidebar-active-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
  }
  
  .sidebar-filter-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.25rem 0.75rem;
    background: rgba(139, 92, 246, 0.1);
    border: 1px solid rgba(139, 92, 246, 0.3);
    border-radius: 1rem;
    font-size: 0.75rem;
    color: var(--sf-primary);
    transition: all var(--sf-transition-fast);
  }
  
  .sidebar-filter-chip:hover {
    background: rgba(139, 92, 246, 0.2);
    border-color: rgba(139, 92, 246, 0.5);
  }
  
  .sidebar-filter-chip .remove-btn {
    width: 0.875rem;
    height: 0.875rem;
    color: var(--sf-primary);
    cursor: pointer;
    transition: color var(--sf-transition-fast);
  }
  
  .sidebar-filter-chip .remove-btn:hover {
    color: var(--sf-error);
  }
  
  /* Hide mobile elements on desktop */
  #smart-filters-panel {
    display: none !important;
  }
  
  .filters-control {
    display: none !important;
  }
  
  /* Hide original filter form on desktop - Multiple approaches */
  
  /* Method 1: Direct form hiding */
  #filter-form {
    display: none !important;
  }
  
  /* Method 2: Hide form parent container */
  #filter-form + * {
    display: none !important;
  }
  
  /* Method 3: Hide by structure - first div in products-container */
  .products-container > div:first-child:not(.catalog-desktop-layout) {
    display: none !important;
  }
  
  /* Method 4: Hide by content - any div containing h3 with "Фильтры" */
  .products-container h3:contains("Фильтры") {
    display: none !important;
  }
  
  /* Method 5: Generic fallback for filter containers */
  .products-container > div[class*="bg-main"] {
    display: none !important;
  }
  
  /* Method 6: Ensure our desktop layout is always visible */
  .catalog-desktop-layout {
    display: flex !important;
  }
  
  /* Desktop filter animations */
  .catalog-filters-sidebar {
    animation: slideInLeft 0.4s ease-out;
  }
  
  @keyframes slideInLeft {
    from {
      opacity: 0;
      transform: translateX(-2rem);
    }
    to {
      opacity: 1;
      transform: translateX(0);
    }
  }
  
  .quick-filter-chip {
    /* Using shared animation from shared-utilities.css */
    animation: fadeInUp 0.3s ease-out;
  }
  
  /* Note: @keyframes fadeInUp moved to shared-utilities.css to avoid duplication */
  
  /* Desktop scroll styling */
  .sidebar-filters-content::-webkit-scrollbar {
    width: 6px;
  }
  
  .sidebar-filters-content::-webkit-scrollbar-track {
    background: var(--sf-bg-primary);
  }
  
  .sidebar-filters-content::-webkit-scrollbar-thumb {
    background: var(--sf-border);
    border-radius: 3px;
  }
  
  .sidebar-filters-content::-webkit-scrollbar-thumb:hover {
    background: var(--sf-bg-tertiary);
  }
  
  /* Анимация сворачивания групп фильтров */
  .filter-group-toggle-icon {
    transition: transform 0.3s ease;
  }
  
  .filter-group-toggle-icon.collapsed {
    transform: rotate(-90deg);
  }
  
  .filter-group-options-container {
    transition: all 0.3s ease;
    overflow: hidden;
  }
  
  .filter-group-options-container.hidden {
    max-height: 0;
    opacity: 0;
    padding-top: 0;
    padding-bottom: 0;
  }
  
  .filter-group-search-container {
    transition: all 0.3s ease;
    overflow: hidden;
  }
  
  .filter-group-search-container.hidden {
    max-height: 0;
    opacity: 0;
    padding-top: 0;
    padding-bottom: 0;
  }

  /* === НОВЫЕ СТИЛИ ДЛЯ РЕСТРУКТУРИРОВАННОГО LAYOUT === */
  
  /* Основной контейнер с новой структурой */
  .filters-and-products-wrapper {
    display: flex;
    gap: 2rem;
    align-items: flex-start;
  }
  
  /* Скрываем оригинальные фильтры на десктопе */
  .original-filters-container {
    display: none !important;
  }
  
  /* Основная область товаров - теперь занимает оставшееся место */
  .products-main-area {
    flex: 1;
    min-width: 0; /* Важно для правильного flex поведения */
  }
  
  /* Улучшенные стили для sidebar */
  .catalog-filters-sidebar {
    width: 22%;
    min-width: 280px;
    max-width: 320px;
    flex-shrink: 0;
    position: sticky;
    top: 2rem;
    max-height: calc(100vh - 4rem);
    overflow: hidden;
    background: var(--sf-bg-primary);
    border: 1px solid var(--sf-border);
    border-radius: 0.75rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  }
  
  /* Улучшенный header сайдбара */
  .sidebar-filters-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--sf-border);
    background: linear-gradient(135deg, var(--sf-bg-primary) 0%, var(--sf-bg-secondary) 100%);
    position: sticky;
    top: 0;
    z-index: 10;
  }
  
  .sidebar-filters-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.75rem;
  }
  
  .sidebar-filters-title h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--sf-text-primary);
    margin: 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
  }
  
  .sidebar-filters-title .icon {
    width: 1.25rem;
    height: 1.25rem;
    color: var(--sf-primary);
  }
  
  /* Мета-информация в header */
  .sidebar-filters-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.875rem;
    color: var(--sf-text-secondary);
  }
  
  .sidebar-results-count {
    font-weight: 500;
    color: var(--sf-primary);
  }
  
  .sidebar-clear-all {
    color: var(--sf-error);
    text-decoration: none;
    font-weight: 500;
    padding: 0.25rem 0.5rem;
    border-radius: 0.375rem;
    transition: all var(--sf-transition-fast);
  }
  
  .sidebar-clear-all:hover {
    background: rgba(239, 68, 68, 0.1);
    text-decoration: none;
  }
  
  /* Улучшенный контент сайдбара */
  .sidebar-filters-content {
    overflow-y: auto;
    flex: 1;
    padding: 0;
  }
  
  /* Специальные стили для групп фильтров в сайдбаре */
  .sidebar-filters-content .filter-group {
    border-bottom: 1px solid var(--sf-border);
    margin: 0;
    border-radius: 0;
  }
  
  .sidebar-filters-content .filter-group:last-child {
    border-bottom: none;
  }
  
  .sidebar-filters-content .filter-group-header {
    padding: 1rem 1.5rem;
    background: var(--sf-bg-primary);
    border: none;
    border-radius: 0;
    transition: background-color var(--sf-transition-fast);
  }
  
  .sidebar-filters-content .filter-group-header:hover {
    background: var(--sf-bg-secondary);
  }
  
  .sidebar-filters-content .filter-group-options-container {
    background: var(--sf-bg-primary);
  }
  
  .sidebar-filters-content .filter-group-options {
    padding: 0 1.5rem 1rem;
  }
  
  .sidebar-filters-content .filter-option {
    margin-bottom: 0.75rem;
    padding: 0.5rem 0;
  }
  
  .sidebar-filters-content .filter-group-search-container {
    padding: 0 1.5rem;
    margin-bottom: 1rem;
  }
  
  .sidebar-filters-content .filter-group-show-more {
    padding: 0 1.5rem 1rem;
  }
  
  /* Активные фильтры в сайдбаре */
  .sidebar-active-filters {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--sf-border);
    background: var(--sf-bg-secondary);
    flex-shrink: 0;
  }
  
  .sidebar-active-filters-title {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--sf-text-secondary);
    margin-bottom: 0.75rem;
  }
  
  .sidebar-active-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
  }
  
  .sidebar-filter-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.25rem 0.75rem;
    background: rgba(139, 92, 246, 0.1);
    border: 1px solid rgba(139, 92, 246, 0.3);
    border-radius: 1rem;
    font-size: 0.75rem;
    color: var(--sf-primary);
    transition: all var(--sf-transition-fast);
  }
  
  .sidebar-filter-chip:hover {
    background: rgba(139, 92, 246, 0.2);
    border-color: rgba(139, 92, 246, 0.5);
  }
  
  .sidebar-filter-chip .remove-btn {
    width: 0.875rem;
    height: 0.875rem;
    color: var(--sf-primary);
    cursor: pointer;
    transition: color var(--sf-transition-fast);
  }
  
  .sidebar-filter-chip .remove-btn:hover {
    color: var(--sf-error);
  }
  
  /* === ИСПРАВЛЕНИЕ GRID LAYOUT С SIDEBAR === */
  
  /* Оптимизированные стили для desktop layout с sidebar - следуем UX best practices */
  .filters-and-products-wrapper .products-main-area .grid-view,
  .filters-and-products-wrapper #products-grid {
    grid-template-columns: repeat(4, 1fr) !important;
    gap: 1.25rem !important;
  }
  
  /* Адаптивные стили для grid с sidebar - оптимальное UX */
  @media (min-width: 1024px) and (max-width: 1299px) {
    .filters-and-products-wrapper .products-main-area .grid-view,
    .filters-and-products-wrapper #products-grid {
      grid-template-columns: repeat(3, 1fr) !important;
      gap: 1rem !important;
    }
  }
  
  @media (min-width: 1300px) and (max-width: 1599px) {
    .filters-and-products-wrapper .products-main-area .grid-view,
    .filters-and-products-wrapper #products-grid {
      grid-template-columns: repeat(4, 1fr) !important;
      gap: 1.25rem !important;
    }
  }
  
  @media (min-width: 1600px) and (max-width: 1919px) {
    .filters-and-products-wrapper .products-main-area .grid-view,
    .filters-and-products-wrapper #products-grid {
      grid-template-columns: repeat(4, 1fr) !important;
      gap: 1.5rem !important;
    }
  }
  
  @media (min-width: 1920px) and (max-width: 2559px) {
    .filters-and-products-wrapper .products-main-area .grid-view,
    .filters-and-products-wrapper #products-grid {
      grid-template-columns: repeat(4, 1fr) !important;
      gap: 2rem !important;
    }
  }
  
  /* Только для очень широких экранов 2560px+ (например, 4K мониторы) */
  @media (min-width: 2560px) {
    .filters-and-products-wrapper .products-main-area .grid-view,
    .filters-and-products-wrapper #products-grid {
      grid-template-columns: repeat(5, 1fr) !important;
      gap: 2rem !important;
    }
  }
  
  /* Responsive поведение для планшетов */
  @media (max-width: 1200px) {
    .filters-and-products-wrapper {
      gap: 1.5rem;
    }
    
    .catalog-filters-sidebar {
      width: 25%;
      min-width: 260px;
    }
    
    /* Компактные карточки для планшетов с sidebar */
    .filters-and-products-wrapper .products-main-area .grid-view,
    .filters-and-products-wrapper #products-grid {
      grid-template-columns: repeat(3, 1fr) !important;
      gap: 1rem !important;
    }
  }
  
  @media (max-width: 1024px) {
    .filters-and-products-wrapper {
      display: block;
    }
    
    .catalog-filters-sidebar {
      display: none;
    }
    
    .original-filters-container {
      display: block !important;
    }
    
    /* Возвращаем обычные стили grid без sidebar - отключаем наши переопределения */
    .filters-and-products-wrapper .products-main-area .grid-view,
    .filters-and-products-wrapper #products-grid {
      grid-template-columns: unset !important;
      gap: unset !important;
    }
  }
}

/* Добавляем в конец файла стили для правил атрибутов */

/* ============================================================================
   СТИЛИ ДЛЯ ПРАВИЛ ДОСТУПНОСТИ АТРИБУТОВ (AttributeRulesManager)
   ============================================================================ */

/* Индикатор загрузки правил */
.attribute-rules-loading {
    display: none;
    position: absolute;
    top: 10px;
    right: 10px;
    width: 16px;
    height: 16px;
    border: 2px solid #f3f3f3;
    border-top: 2px solid #007bff;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    z-index: 1000;
}


/* Стили для недоступных атрибутов */
.attribute-unavailable {
    opacity: 0.5 !important;
    pointer-events: none;
    position: relative;
}

.attribute-unavailable::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: repeating-linear-gradient(
        45deg,
        transparent,
        transparent 2px,
        rgba(255, 255, 255, 0.1) 2px,
        rgba(255, 255, 255, 0.1) 4px
    );
    pointer-events: none;
    z-index: 1;
}

.attribute-unavailable input[type="checkbox"],
.attribute-unavailable input[type="radio"] {
    cursor: not-allowed;
}

.attribute-unavailable label {
    cursor: not-allowed;
    color: #999 !important;
}

/* Стили для полностью недоступных групп атрибутов */
.attribute-completely-unavailable {
    opacity: 0.3;
    background-color: rgba(255, 255, 255, 0.02);
    border-radius: 8px;
    padding: 8px;
    margin: 4px 0;
}

.attribute-completely-unavailable .filter-title,
.attribute-completely-unavailable .attribute-title {
    color: #666 !important;
}

/* Индикаторы состояния атрибутов */
.attribute-status {
    font-size: 0.75rem;
    font-weight: 500;
    margin-left: 8px;
    padding: 2px 6px;
    border-radius: 4px;
    display: inline-block;
    line-height: 1;
}

.attribute-status.unavailable {
    color: #dc3545;
    background-color: rgba(220, 53, 69, 0.1);
    border: 1px solid rgba(220, 53, 69, 0.2);
}

.attribute-status.partially-available {
    color: #fd7e14;
    background-color: rgba(253, 126, 20, 0.1);
    border: 1px solid rgba(253, 126, 20, 0.2);
}

.attribute-status.available {
    display: none; /* Скрываем для полностью доступных */
}

/* Анимации для изменения состояния */
.attribute-unavailable {
    transition: opacity 0.3s ease, background-color 0.3s ease;
}

.attribute-status {
    transition: all 0.3s ease;
}

/* Адаптивные стили для мобильных устройств */
@media (max-width: 768px) {
    .attribute-status {
        font-size: 0.7rem;
        padding: 1px 4px;
        margin-left: 4px;
    }
    
    .attribute-rules-loading {
        width: 14px;
        height: 14px;
        top: 8px;
        right: 8px;
    }
}

/* Стили для десктопного sidebar */
@media (min-width: 1024px) {
    .desktop-filters-sidebar .attribute-unavailable {
        background-color: rgba(255, 255, 255, 0.02);
        border-radius: 6px;
        margin: 2px 0;
        padding: 4px 8px;
    }
    
    .desktop-filters-sidebar .attribute-completely-unavailable {
        background-color: rgba(255, 255, 255, 0.05);
        border: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .desktop-filters-sidebar .attribute-status {
        font-size: 0.7rem;
        margin-left: 6px;
    }
}

/* Улучшенная визуализация для темной темы */
.dark .attribute-unavailable::after {
    background: repeating-linear-gradient(
        45deg,
        transparent,
        transparent 2px,
        rgba(0, 0, 0, 0.2) 2px,
        rgba(0, 0, 0, 0.2) 4px
    );
}

.dark .attribute-completely-unavailable {
    background-color: rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

/* Стили для tooltip с информацией о правилах */
.attribute-rule-tooltip {
    position: absolute;
    background: rgba(0, 0, 0, 0.9);
    color: white;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 0.75rem;
    white-space: nowrap;
    z-index: 1000;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.2s ease;
    max-width: 250px;
    word-wrap: break-word;
    white-space: normal;
}

.attribute-rule-tooltip.show {
    opacity: 1;
}

.attribute-rule-tooltip::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    margin-left: -5px;
    border-width: 5px;
    border-style: solid;
    border-color: rgba(0, 0, 0, 0.9) transparent transparent transparent;
}

/* Стили для debug информации (только в dev режиме) */
.attribute-rules-debug {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 10px;
    border-radius: 6px;
    font-size: 0.75rem;
    z-index: 9999;
    max-width: 300px;
    display: none;
}

.attribute-rules-debug.show {
    display: block;
}

.attribute-rules-debug h4 {
    margin: 0 0 8px 0;
    font-size: 0.8rem;
    color: #ffd700;
}

.attribute-rules-debug ul {
    margin: 0;
    padding-left: 16px;
    list-style: disc;
}

.attribute-rules-debug li {
    margin: 2px 0;
}