:root {
  --primary: #333;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

.container-ktr {
  display: inline-block;
  max-width: 1280px;
  margin: 12px auto;
  padding: 0px;
}

h1 {
  text-align: center;
  color: var(--primary);
  font-size: 1.4rem;
  margin-bottom: 4px;
}

.main-category {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 20px;       
  align-items: flex-start;    
  margin-bottom: 0px;      
  padding: 20px;           
  background: linear-gradient(to bottom, #ffffff, #f5f5f7);   
  border-radius: 10px 10px 0 0;    
  border: 1px solid #eee;   
  border-bottom: none; 
}

.main-image {
  flex: 0 0 220px; 
}

.main-image img {
  width: 220px; 
  height: 220px;      
  object-fit: contain;    
  border: 1px solid #ddd; 
  border-radius: 10px; 
  background: white;      
}

.main-info {
  flex: 1;           
  min-width: 300px;  
}

.main-title-eng {
  font-size: 1.0rem;   
  color: #9d9d9d;
  margin-bottom: 8px;  
}

.main-title-ru {
  font-size: 1.4rem;  
  font-weight: bold; 
  color: #333;  
  margin-bottom: 6px;
}

.main-description {
  font-size: 1.08rem;
  color: #444;
  cursor: pointer;
  position: relative;
  padding-bottom: 28px;
  transition: background-color 0.2s;
  margin-top: 15px;
}

.main-description:hover {
  background-color: #fafafa;
}

.main-desc-short,
.main-desc-detailed {
  line-height: 1.5;
}

.main-desc-detailed {
  color: #333;
  animation: fadeIn 0.3s ease;
}

.main-desc-toggle {
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  color: #0066cc;
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: underline;
  text-decoration-color: rgba(0, 102, 204, 0.3);
  white-space: nowrap;
  transition: all 0.2s;
  user-select: none;
}

.main-desc-toggle:hover {
  color: #0052a3;
  text-decoration-color: #0052a3;
}

.main-description.expanded .main-desc-toggle::after {
  content: " ↑";
}

.subcategories-section {
  margin-bottom: 10px; 
  margin-top: 0;
  position: relative;
}


.toggle-header {
  text-align: center;         
  color: #444;             
  margin: 0;     
  font-size: 1.8rem;     
  cursor: pointer;       
  user-select: none; 
  position: relative;     
  padding: 16px;      
  transition: color 0.2s; 
  background: linear-gradient(to top, #f5f5f7, #ffffff); 
  border-radius: 0 0 10px 10px;
  border: 1px solid #ddd;
  border-top: none; 
}

.toggle-header:hover {
  color: var(--primary); 
}

.toggle-icon {
  position: absolute;      
  right: 2%;              
  top: 50%;           
  transform: translateY(-50%); 
  font-size: 1.1em;     
  transition: transform 0.35s ease; 
}


.subcategories-wrapper {
  transition: all 0.4s ease; 
  max-height: none !important;
  opacity: 1 !important;
  overflow: visible;
}


.subcategories {
  display: flex;                             
  gap: 0;                                
  flex-direction: column;
}


.sub-item {
  border: 1px solid #ddd; 
  border-radius: 10px; 
  overflow: hidden; 
  background: #f9f9f9; 
  position: relative; 
}

.sub-item:hover {
  box-shadow: 0 8px 20px rgba(0,0,0,0.1); 
  transform: translateY(-4px); 
}

.sub-header {
  display: flex;      
  align-items: center;
  padding: 4px 18px; 
  background: #f9f9f9; 
  gap: 14px;       
}

.sub-img {
  width: 40px;      
  height: 40px;    
  object-fit: contain;
  flex-shrink: 0;  
}

.sub-name {
  font-weight: 300; 
  color: #7b7b7b;
  font-size: 0.80rem;
}

.sub-ru {
  font-size: 1.00rem;   
  font-weight: bold;
  color: #333;    
  margin-top: 3px;     
  text-shadow: 0 0 1px #7b7b7b;
}

.sub-content {
  max-height: 0;               
  overflow: hidden;           
  transition: max-height 0.45s ease, padding 0.3s ease; 
}

.sub-desc {
  text-align: center;  
  font-size: 1.02rem;      
  color: #333;      
  margin: 0% 0;   
}

.subcategories-section .toggle-header {
  cursor: default;
}

.subcategories-section .toggle-icon {
  display: none;
}

.subcategories-wrapper {
  max-height: none !important;
  opacity: 1 !important;
  overflow: visible;
}

.subcategory-group {
  border: 1px solid #ddd; 
  border-top: none; 
  border-radius: 5px;
  background: linear-gradient(to top, #b3b3b3, #ffffff);
  overflow: hidden;
}

.subcategory-header {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 10px 16px;
  border-bottom: 1px solid #d9d9d9;
  background: #f7f7f7;
  cursor: pointer;
}

.subcat-img {
  width: 88px;
  height: 88px;
  object-fit: contain;
  flex-shrink: 0;
  border: none;
  border-radius: none;
  background: none;
}

.subcat-en {
  font-size: 0.85rem;
  font-weight: 400;
  color: #9d9d9d;
}

.subcat-ru {
  font-size: 1.1rem;
  color: #333;
  font-weight: bold;
  margin-top: 3px;
}

.sub-description {
  font-size: 1.02rem;
  color: #666;
  margin: 10px;
  cursor: pointer;
  position: relative;
  padding-bottom: 24px; 
  transition: background-color 0.2s;
}

.sub-description:hover {
  background-color: #fafafa;
}

.sub-desc-short,
.sub-desc-detailed {
  line-height: 1.5;
}

.sub-desc-detailed {
  color: #444;
  animation: fadeIn 0.3s ease;
}

.sub-desc-toggle {
  position: absolute;
  bottom: 0;
  left: 50%;               
  transform: translateX(-50%);  
  color: #0066cc;
  font-size: 0.85rem;
  font-weight: 500;
  text-decoration: underline;
  text-decoration-color: rgba(0, 102, 204, 0.3);
  white-space: nowrap;      
}

.sub-desc-toggle:hover {
  color: #0052a3;
  text-decoration-color: #0052a3;
}

.sub-description.expanded .sub-desc-toggle::after {
  content: " ↑";
}

/* Анимация появления */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-5px); }
  to { opacity: 1; transform: translateY(0); }
}

.subcategory-products {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
  gap: 10px;
  padding: 12px;
}

.sub-item.open .sub-content,
.sub-item .sub-content {
  max-height: none;
  padding: 0 14px 14px;
}

.sub-item .sub-content .sub-img {
  display: block;
  width: 100px;
  height: 100px;
  margin: 10px auto 8px;
  object-fit: contain;
  border: 1px solid #eee;
  border-radius: 8px;
  background: #fff;
}

.sub-item .sub-header .sub-img {
  width: 100px;
  height: 100px;
}

summary.toggle-summary,
.subcategory-group > summary.subcategory-header {
  list-style: none;
}

summary.toggle-summary::-webkit-details-marker,
summary.toggle-summary::marker,
.subcategory-group > summary.subcategory-header::-webkit-details-marker,
.subcategory-group > summary.subcategory-header::marker {
  display: none;
  content: "";
}

summary.toggle-summary {
  position: sticky;
  top: 0;
  z-index: 30;
  background: #fff;
}

.toggle-summary .toggle-header {
  position: relative;
  padding-right: 44px;
}

.toggle-summary .toggle-header .toggle-icon {
  display: none !important;
}

.toggle-summary .toggle-header::after {
  content: "▼";
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  transition: transform 0.2s ease;
}

.subcategories-toggle:not([open]) > .toggle-summary .toggle-header::after {
  transform: translateY(-50%) rotate(-180deg);
}

.subcategory-group > summary.subcategory-header {
  position: sticky;
  top: 56px;
  z-index: 20;
  padding-right: 44px;
}


.subcategory-group > summary.subcategory-header::after {
  content: "▼";
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  transition: transform 0.2s ease;
  color: #444;
}

.subcategory-group:not([open]) > summary.subcategory-header::after {
  transform: translateY(-50%) rotate(-180deg);
}

.sub-item:hover {
  transform: none !important;
}

.sub-item > .sub-content {
  display: block !important;
  max-height: none !important;
}

.sub-header .sub-img {
  cursor: zoom-in;
  transition: opacity 0.16s ease;
}


.subcategory-group {
  overflow: visible !important;
}

.subcategory-group > summary.subcategory-header {
  display: flex;
  align-items: center;
  margin: 0;
  background: linear-gradient(to top, #ffffff 0%, #efefef 50%, #ffffff 100%);
}

.subcategory-products {
  padding-top: 10px;
}

.sub-item {
  position: relative;
  overflow: visible;
}

.sub-item .sub-header {
  position: relative;
}

.sub-header .sub-img:active {
  opacity: 0.85;
}

.img-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.72);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  padding: 20px;
}

.img-overlay img {
  width: min(100vw - 40px, 400px);
  height: min(100vh - 40px, 400px);
  object-fit: contain;
  background: #fff;
  border-radius: 10px;
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.35);
}


.sub-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  color: inherit;
  text-decoration: none;
  width: 100%;
}

.sub-title:hover .sub-name,
.sub-title:hover .sub-ru,
.sub-title:hover .sub-title-arrow {
  color: var(--primary);
}

.sub-title-arrow {
  font-size: 0.9rem;
  color: #666;
  flex-shrink: 0;
}


@media (max-width: 980px) {
  .main-category {
    flex-direction: column; 
    align-items: center;     
    text-align: left;     
    padding: 20px 4px;
  }
  .main-image {
    flex: 0 1 260px;          
    max-width: 100%;        
  }
  .main-image img {
    width: 100%;       
    height: auto;      
    max-width: 260px;    
  }
  .subcategories {
    grid-template-columns: 1fr; 
  }
  .toggle-header {
    font-size: 1.6rem;
    margin: 0;
  }
}

@media (max-width: 480px) {
  .main-image {
    flex: 0 1 100%;     
    max-width: 100%;   
  }

  .subcategory-products {
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 5px;
  padding: 5px;
  }
  .container-ktr {
    margin: 12px auto;
    padding: 0 4px;
}