/* 
 * DryAlle Design System - Pricing Filter Components
 * Category & Process Filter System
 * MIT-Level Architecture Implementation
 */

/* ================================
   FILTER SIDEBAR FOUNDATION
   ================================ */

.pricing-sidebar {
  /* Fixed height sidebar - no scroll */
  background: var(--color-bg-card);
  border: 2px solid var(--color-gray-300);
  border-radius: 0;
  padding: var(--spacing-8) var(--spacing-6);
  height: fit-content;
  position: sticky;
  top: 20px;
  overflow: visible;
}


.pricing-sidebar h2 {
  color: var(--color-primary-darker);
  font-size: var(--font-size-2xl);
  font-weight: 700;
  margin-bottom: var(--spacing-6);
  text-align: center;
  border-bottom: 2px solid var(--color-primary-darker);
  padding-bottom: var(--spacing-3);
}

/* ================================
   SEARCH COMPONENT
   ================================ */

.pricing-search-container {
  position: relative;
  margin-bottom: var(--spacing-8);
}

.pricing-search-input {
  width: 100%;
  padding: 12px 40px 12px 15px;
  border: 2px solid var(--color-gray-300);
  border-radius: 0; /* Corporate square design */
  font-size: var(--font-size-sm);
  background: var(--color-white);
  transition: border-color var(--transition-base);
}

.pricing-search-input:focus {
  outline: none;
  border-color: var(--color-primary-darker);
}

.pricing-search-input::placeholder {
  color: var(--color-gray-500);
  font-style: italic;
}

.pricing-search-icon {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-gray-500);
  font-size: 16px;
  pointer-events: none;
}

/* ================================
   CATEGORY LIST SYSTEM
   ================================ */

.pricing-categories-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.pricing-category-item {
  margin-bottom: var(--spacing-2);
}

/* Simple Category Links */
.pricing-category-link {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 15px;
  background: var(--color-white);
  border: 2px solid var(--color-gray-300);
  border-radius: 0; /* Corporate square design */
  color: var(--color-gray-700);
  text-decoration: none;
  font-size: var(--font-size-sm);
  font-weight: 500;
  transition: all var(--transition-base);
  cursor: pointer;
}

.pricing-category-link:hover,
.pricing-category-link.active {
  background: var(--color-bg-card-content);
  border-color: var(--color-primary-darker);
  color: var(--color-primary-darker);
  transform: translateY(-1px);
}

.blog-category-count {
  background: var(--color-primary-darker);
  color: var(--color-white);
  padding: 4px 8px;
  border-radius: 0; /* Corporate square design */
  font-size: var(--font-size-xs);
  font-weight: 600;
}

/* ================================
   EXPANDABLE CATEGORY SYSTEM
   ================================ */

.category-item {
  margin-bottom: var(--spacing-2);
}

.category-main-link {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 15px;
  background: var(--color-white);
  border: 2px solid var(--color-gray-300);
  border-radius: 0;
  color: var(--color-gray-700);
  text-decoration: none;
  font-size: var(--font-size-sm);
  font-weight: 500;
  transition: all var(--transition-base);
  cursor: pointer;
}

.category-main-link:hover,
.category-main-link.active {
  background: var(--color-bg-card-content);
  border-color: var(--color-primary-darker);
  color: var(--color-primary-darker);
}

.category-arrow {
  transition: transform var(--transition-base);
  font-size: 12px;
  margin-left: var(--spacing-2);
}

.category-arrow.expanded {
  transform: rotate(90deg);
}

/* ================================
   SUBCATEGORY SYSTEM
   ================================ */

.subcategories {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base);
  background: var(--color-gray-50);
  border-left: 2px solid var(--color-gray-300);
  border-right: 2px solid var(--color-gray-300);
  border-bottom: 2px solid var(--color-gray-300);
}

.subcategories.expanded {
  max-height: 300px;
}

.subcategory-link {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 25px;
  background: var(--color-gray-50);
  color: var(--color-gray-600);
  text-decoration: none;
  font-size: var(--font-size-xs);
  font-weight: 500;
  transition: all var(--transition-base);
  border-bottom: 1px solid var(--color-gray-200);
}

.subcategory-link:hover,
.subcategory-link.active {
  background: var(--color-white);
  color: var(--color-primary-darker);
  padding-left: 30px;
}

.subcategory-count {
  background: var(--color-gray-400);
  color: var(--color-gray-700);
  padding: 2px 6px;
  border-radius: 0;
  font-size: var(--font-size-xs);
  font-weight: 600;
}

/* ================================
   PROCESS FILTER SYSTEM
   ================================ */

.pricing-process-filters {
  margin-top: var(--spacing-8);
  padding: var(--spacing-4);
  background: var(--color-gray-50);
  border: 2px solid var(--color-gray-300);
  border-radius: 0; /* Corporate square design */
}

.pricing-process-filters h3 {
  color: var(--color-primary-darker);
  font-size: var(--font-size-base);
  margin-bottom: var(--spacing-4);
  text-align: center;
  font-weight: 600;
}

.pricing-process-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-2);
}

.pricing-process-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  cursor: pointer;
  padding: var(--spacing-1) 0;
  transition: all var(--transition-base);
}

.pricing-process-item:hover {
  color: var(--color-primary-darker);
}

.pricing-process-checkbox {
  accent-color: var(--color-primary);
  width: 16px;
  height: 16px;
}

.pricing-process-label {
  font-size: var(--font-size-sm);
  color: var(--color-gray-700);
  cursor: pointer;
  user-select: none;
}

.pricing-process-item:hover .pricing-process-label {
  color: var(--color-primary-darker);
}

/* ================================
   RESPONSIVE DESIGN
   ================================ */

/* Tablet Design */
@media (max-width: 1024px) {
  .pricing-sidebar {
    padding: var(--spacing-6) var(--spacing-5);
  }
  
  .pricing-search-input {
    padding: 10px 35px 10px 12px;
  }
  
  .pricing-category-link,
  .category-main-link {
    padding: 10px 12px;
    font-size: var(--font-size-xs);
  }
}

/* Mobile Design */
@media (max-width: 768px) {
  .pricing-sidebar {
    position: static;
    order: 2;
    margin-top: var(--spacing-8);
    padding: var(--spacing-5) var(--spacing-4);
    height: auto;
    max-height: none;
  }
  
  .pricing-search-container {
    margin-bottom: var(--spacing-6);
  }
  
  .pricing-process-filters {
    margin-top: var(--spacing-6);
    padding: var(--spacing-3);
  }
  
  .subcategories.expanded {
    max-height: 200px;
  }
}

/* ================================
   PERFORMANCE OPTIMIZATIONS
   ================================ */

.pricing-categories-list,
.pricing-process-filters {
  contain: layout;
}

.subcategories {
  contain: layout style;
}

/* ================================
   ACCESSIBILITY ENHANCEMENTS
   ================================ */

.pricing-category-link:focus,
.category-main-link:focus,
.subcategory-link:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.pricing-search-input:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Screen reader support */
.category-arrow::before {
  content: attr(aria-label);
  position: absolute;
  left: -10000px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

/* High contrast mode */
@media (prefers-contrast: high) {
  .pricing-sidebar,
  .pricing-category-link,
  .category-main-link,
  .subcategories {
    border-color: var(--color-gray-900);
    border-width: 3px;
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .category-arrow,
  .subcategories,
  .pricing-category-link,
  .category-main-link,
  .subcategory-link {
    transition: none;
  }
}