:root {
  --primary-color: #00524a;
  --primary-light: #e6f0ef;
  --text-color: #333;
  --border-color: #ddd;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  padding: 20px;
  background-color: #f9f9f9;
}

.price-list-container {
  margin: 0 auto;
  padding: 20px 0;
}

.page-title {
  text-align: center;
  color: var(--primary-color);
  margin-bottom: 40px;
  font-size: 32px;
  font-weight: 600;
}

.accordion-section {
  margin-bottom: 10px;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0,0,0,0.08);
  background: white;
}

.accordion-header {
  background-color: var(--primary-color);
  color: white;
  padding: 20px 25px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background-color 0.3s ease;
  user-select: none;
}

.accordion-header:hover {
  background-color: #004139;
}

.section-title {
  font-size: 20px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 15px;
}

.section-number {
  font-weight: 700;
  background: rgba(255,255,255,0.2);
  padding: 4px 12px;
  border-radius: 6px;
  font-size: 18px;
}

.accordion-toggle {
  font-size: 24px;
  transition: transform 0.3s ease;
  font-weight: bold;
  min-width: 30px;
  text-align: center;
}

.accordion-section.active .accordion-toggle {
  transform: rotate(180deg);
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.5s ease;
}

.accordion-section.active .accordion-content {
  max-height: 5000px;
}

.price-block {
  padding: 0;
}

.block-title {
  display: grid;
  grid-template-columns: 1fr 3fr 1fr;
  background-color: var(--primary-light);
  color: var(--primary-color);
  font-weight: 600;
  padding: 18px 25px;
  border-bottom: 2px solid var(--border-color);
  align-items: center;
}

.block-line {
  display: grid;
  grid-template-columns: 1fr 3fr 1fr;
  padding: 18px 25px;
  border-bottom: 1px solid var(--border-color);
  align-items: center;
  transition: background-color 0.2s ease;
}

.block-line:hover {
  background-color: #f8f8f8;
}

.block-line:last-child {
  border-bottom: none;
}

.item-number-title, .item-name-title, .item-price-title {
  padding: 0 10px;
}

.item-number, .item-name, .item-price {
  padding: 0 10px;
  word-break: break-word;
}

.item-number {
  font-weight: 500;
  color: var(--primary-color);
}

.item-name {
  line-height: 1.5;
}

.item-price {
  text-align: right;
  font-weight: 600;
  color: var(--primary-color);
  font-size: 18px;
}

.item-price-title {
  text-align: right;
}

/* Мобильная адаптация */
@media (max-width: 768px) {
  .price-list-container {
      padding: 10px;
  }
  
  .page-title {
      font-size: 24px;
      margin-bottom: 25px;
  }
  
  .accordion-header {
      padding: 16px 20px;
  }
  
  .section-title {
      font-size: 17px;
      flex-direction: column;
      align-items: flex-start;
      gap: 8px;
  }
  
  .section-number {
      font-size: 16px;
      padding: 3px 10px;
  }
  
  .accordion-toggle {
      font-size: 20px;
      position: absolute;
      right: 20px;
  }
  
  .block-title {
      display: none;
  }
  
  .block-line {
      display: flex;
      flex-direction: column;
      align-items: flex-start;
      padding: 20px;
      border-bottom: 1px solid var(--border-color);
      gap: 12px;
  }
  
  .item-number {
      font-size: 16px;
      font-weight: 600;
      color: var(--primary-color);
      width: 100%;
      padding-bottom: 8px;
      border-bottom: 1px dashed #eee;
  }
  
  .item-name {
      font-size: 16px;
      width: 100%;
      margin-bottom: 10px;
  }
  
  .item-price {
      font-size: 20px;
      font-weight: 700;
      width: 100%;
      text-align: left;
      padding-top: 10px;
      border-top: 1px dashed #eee;
      position: relative;
  }
  
  .item-price::before {
      content: 'Стоимость: ';
      font-size: 14px;
      color: #666;
      font-weight: normal;
      margin-right: 10px;
  }
}

@media (max-width: 480px) {
  body {
      padding: 10px 5px;
  }
  
  .price-list-container {
      padding: 5px;
  }
  
  .accordion-header {
      padding: 14px 16px;
  }
  
  .section-title {
      font-size: 16px;
  }
  
  .block-line {
      padding: 16px;
  }
}

/* Анимация */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.accordion-section {
  animation: fadeIn 0.3s ease forwards;
}

.accordion-section:nth-child(1) { animation-delay: 0.1s; }
.accordion-section:nth-child(2) { animation-delay: 0.2s; }
.accordion-section:nth-child(3) { animation-delay: 0.3s; }
.accordion-section:nth-child(4) { animation-delay: 0.4s; }