/*
 * 상품관리 트리 (설정 > 상품관리) — 캠페인 그룹 + 재귀 상품 아이템
 *
 * ⭐**여기로 옮긴 이유 = 성능**. 이 CSS 는 `_product_item.html.erb` 안의 `<style>` 이라
 *   **상품 하나마다 통째로 반복**되고 있었다. 실측(올포원 상품 1,174개):
 *   9.2KB × 1,174 = **10.3MB** — 응답 13.7MB 의 75%가 같은 CSS 사본이었다.
 *   (개발 규칙 1 「새 뷰에 인라인 style 금지」의 이유가 그대로 드러난 사례.)
 */

.campaign-products-group { border: 1px solid #e5e7eb; border-radius: 10px; margin-bottom: 12px; overflow: hidden; }
  .campaign-products-header { display: flex; justify-content: space-between; align-items: center; padding: 10px 14px; background: #f9fafb; border-bottom: 1px solid #e5e7eb; }
  .campaign-products-title { display: flex; align-items: center; gap: 8px; }
  .campaign-products-name { font-weight: 600; font-size: 14px; color: #111827; }
  .campaign-products-count { font-size: 11px; color: #6b7280; background: #e5e7eb; padding: 1px 8px; border-radius: 10px; }
  .campaign-add-product-btn { display: flex; align-items: center; gap: 4px; padding: 5px 12px; background: #2563eb; color: white; border: none; border-radius: 6px; font-size: 12px; font-weight: 500; cursor: pointer; }
  .campaign-add-product-btn:hover { background: #1d4ed8; }
  .campaign-products-body { padding: 8px; min-height: 40px; }
  .campaign-products-empty { text-align: center; padding: 16px; color: #9ca3af; font-size: 13px; }
  .products-empty-state-full { text-align: center; padding: 50px 20px; background: #f9fafb; border: 2px dashed #e5e7eb; border-radius: 12px; }

  /* 캠페인 펼침/접기 버튼 */
  .campaign-toggle-btn {
    width: 24px; height: 24px; background: transparent; border: none; border-radius: 6px;
    color: #6b7280; cursor: pointer; display: flex; align-items: center; justify-content: center;
    flex-shrink: 0; transition: all 0.15s;
  }
  .campaign-toggle-btn:hover { background: #e5e7eb; color: #374151; }
  .campaign-chevron-icon { transition: transform 0.2s ease; }
  .campaign-products-group[data-campaign-expanded="false"] .campaign-chevron-icon { transform: rotate(-90deg); }
  .campaign-products-group[data-campaign-expanded="false"] .campaign-products-header { border-bottom: none; }

  /* 다크모드 */
  html.dark .campaign-products-group { border-color: #334155; }
  html.dark .campaign-products-header { background: #1e293b; border-bottom-color: #334155; }
  html.dark .campaign-products-name { color: #f1f5f9; }
  html.dark .campaign-products-count { background: #334155; color: #94a3b8; }
  html.dark .campaign-products-body { background: #0f172a; }
  html.dark .campaign-products-empty { color: #64748b; }
  html.dark .products-empty-state-full { background: #1e293b; border-color: #475569; }
  html.dark .campaign-toggle-btn { color: #64748b; }
  html.dark .campaign-toggle-btn:hover { background: #334155; color: #94a3b8; }

/* === 공통 === */
  .product-item {
    display: flex;
    flex-direction: column;
  }

  .product-item.is-root {
    margin-bottom: 8px;
  }

  /* 펼침/닫힘 아이콘 회전 */
  .product-item[data-product-expand-expanded-value="false"] .chevron-icon {
    transform: rotate(-90deg);
  }

  .chevron-icon {
    transition: transform 0.2s ease;
  }

  /* 하위 상품 숨김 */
  .product-item[data-product-expand-expanded-value="false"] > .product-children {
    display: none;
  }

  /* === 최상위 상품 (카드 스타일) === */
  .product-card {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 16px;
    background: white;
    border: 1px solid #e5e7eb;
    border-radius: 10px;
    transition: all 0.15s;
  }

  .product-card:hover {
    border-color: #d1d5db;
  }

  .product-card.inactive {
    opacity: 0.6;
    background: #f9fafb;
  }

  /* 펼침/닫힘 버튼 */
  .product-toggle-btn {
    width: 28px;
    height: 28px;
    background: transparent;
    border: none;
    border-radius: 6px;
    color: #6b7280;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all 0.15s;
  }

  .product-toggle-btn:hover {
    background: #f3f4f6;
    color: #374151;
  }

  .product-toggle-spacer {
    width: 28px;
    flex-shrink: 0;
  }

  /* 드래그 핸들 */
  .product-drag-handle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    color: #9ca3af;
    cursor: grab;
    flex-shrink: 0;
    border-radius: 4px;
    transition: all 0.15s;
  }

  .product-drag-handle:hover {
    color: #6b7280;
    background: #f3f4f6;
  }

  .product-drag-handle:active {
    cursor: grabbing;
  }

  .product-info {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    flex: 1;
    min-width: 0;
    cursor: pointer;
    padding: 4px;
    margin: -4px;
    border-radius: 6px;
    transition: background 0.15s;
  }

  .product-info:hover {
    background: rgba(59, 130, 246, 0.05);
  }

  .product-details {
    flex: 1;
    min-width: 0;
  }

  .product-name-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 4px;
  }

  .product-name {
    font-size: 14px;
    font-weight: 600;
    color: #111827;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .product-inactive-badge {
    font-size: 10px;
    padding: 2px 6px;
    background: #fef3c7;
    color: #92400e;
    border-radius: 4px;
    flex-shrink: 0;
  }

  .product-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
  }

  .product-type-badge {
    font-size: 11px;
    padding: 2px 8px;
    border-radius: 4px;
    font-weight: 500;
  }

  .product-type-badge.type-service {
    background: #dbeafe;
    color: #1e40af;
  }

  .product-type-badge.type-goods {
    background: #dcfce7;
    color: #166534;
  }

  .product-children-count {
    font-size: 11px;
    color: #6b7280;
  }

  .product-upstream-badge {
    display: inline-flex;
    align-items: center;
    max-width: 220px;
    padding: 2px 8px;
    font-size: 11px;
    font-weight: 500;
    color: #7c3aed;
    background: #f3e8ff;
    border-radius: 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .product-description {
    margin: 4px 0 0 0;
    font-size: 12px;
    color: #6b7280;
    line-height: 1.4;
  }

  .product-add-child-btn {
    width: 32px;
    height: 32px;
    background: #f3f4f6;
    border: none;
    border-radius: 8px;
    color: #6b7280;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all 0.15s;
  }

  .product-add-child-btn:hover {
    background: #2563eb;
    color: white;
  }

  /* === 하위 상품 (심플 스타일) === */
  .product-children {
    display: flex;
    flex-direction: column;
    margin-left: 28px;
    padding-left: 16px;
    border-left: 2px solid #e5e7eb;
    margin-top: 6px;
  }

  .product-child-row {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border-radius: 6px;
    transition: background 0.15s;
  }

  .product-child-row:hover {
    background: rgba(0, 0, 0, 0.02);
  }

  .product-child-row.inactive {
    opacity: 0.5;
  }

  /* 하위용 펼침/닫힘 버튼 */
  .product-toggle-btn-sm {
    width: 20px;
    height: 20px;
    background: transparent;
    border: none;
    border-radius: 4px;
    color: #9ca3af;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all 0.15s;
  }

  .product-toggle-btn-sm:hover {
    background: #f3f4f6;
    color: #6b7280;
  }

  .product-toggle-spacer-sm {
    width: 20px;
    flex-shrink: 0;
  }

  /* 하위용 드래그 핸들 */
  .product-drag-handle-sm {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 16px;
    height: 16px;
    color: #d1d5db;
    cursor: grab;
    flex-shrink: 0;
    transition: color 0.15s;
  }

  .product-drag-handle-sm:hover {
    color: #9ca3af;
  }

  .product-child-info {
    display: flex;
    align-items: center;
    gap: 6px;
    flex: 1;
    min-width: 0;
    cursor: pointer;
    padding: 4px 8px;
    margin: -4px -8px;
    border-radius: 4px;
    transition: background 0.15s;
  }

  .product-child-info:hover {
    background: rgba(59, 130, 246, 0.08);
  }

  .product-child-name {
    font-size: 13px;
    font-weight: 500;
    color: #374151;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .product-inactive-badge-sm {
    font-size: 9px;
    padding: 1px 4px;
    background: #fef3c7;
    color: #92400e;
    border-radius: 3px;
    flex-shrink: 0;
  }

  .product-children-count-sm {
    font-size: 11px;
    color: #9ca3af;
  }

  .product-add-child-btn-sm {
    width: 22px;
    height: 22px;
    background: transparent;
    border: none;
    border-radius: 4px;
    color: #9ca3af;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    opacity: 0;
    transition: all 0.15s;
  }

  .product-child-row:hover .product-add-child-btn-sm {
    opacity: 1;
  }

  .product-add-child-btn-sm:hover {
    background: #2563eb;
    color: white;
  }

  /* Sortable 스타일 */
  .product-ghost {
    opacity: 0.4;
  }

  .product-chosen {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  }

  .product-drag {
    opacity: 0.9;
  }

  /* === 반응형 === */
  @media (max-width: 768px) {
    .product-card {
      padding: 12px;
      gap: 8px;
    }

    .product-name {
      font-size: 13px;
    }

    .product-toggle-btn {
      width: 24px;
      height: 24px;
    }

    .product-toggle-spacer {
      width: 24px;
    }

    .product-children {
      margin-left: 20px;
      padding-left: 12px;
    }

    .product-child-row {
      padding: 6px 10px;
    }

    .product-child-name {
      font-size: 12px;
    }

    .product-add-child-btn-sm {
      opacity: 1;
    }
  }

  /* === 다크모드 === */
  html.dark .product-card {
    background: #1e293b;
    border-color: #334155;
  }

  html.dark .product-card:hover {
    border-color: #475569;
  }

  html.dark .product-card.inactive {
    background: #0f172a;
  }

  html.dark .product-toggle-btn {
    color: #64748b;
  }

  html.dark .product-toggle-btn:hover {
    background: #334155;
    color: #94a3b8;
  }

  html.dark .product-drag-handle {
    color: #64748b;
  }

  html.dark .product-drag-handle:hover {
    color: #94a3b8;
    background: #334155;
  }

  html.dark .product-info:hover {
    background: rgba(59, 130, 246, 0.1);
  }

  html.dark .product-name {
    color: #f1f5f9;
  }

  html.dark .product-children-count,
  html.dark .product-description {
    color: #94a3b8;
  }

  html.dark .product-upstream-badge {
    background: rgba(124, 58, 237, 0.2);
    color: #c4b5fd;
  }

  html.dark .product-inactive-badge,
  html.dark .product-inactive-badge-sm {
    background: rgba(254, 243, 199, 0.2);
    color: #fcd34d;
  }

  html.dark .product-type-badge.type-service {
    background: rgba(59, 130, 246, 0.2);
    color: #93c5fd;
  }

  html.dark .product-type-badge.type-goods {
    background: rgba(34, 197, 94, 0.2);
    color: #86efac;
  }

  html.dark .product-add-child-btn {
    background: #334155;
    color: #94a3b8;
  }

  html.dark .product-add-child-btn:hover {
    background: #2563eb;
    color: white;
  }

  html.dark .product-children {
    border-left-color: #334155;
  }

  html.dark .product-child-row:hover {
    background: rgba(255, 255, 255, 0.03);
  }

  html.dark .product-toggle-btn-sm {
    color: #64748b;
  }

  html.dark .product-toggle-btn-sm:hover {
    background: #334155;
    color: #94a3b8;
  }

  html.dark .product-drag-handle-sm {
    color: #475569;
  }

  html.dark .product-drag-handle-sm:hover {
    color: #64748b;
  }

  html.dark .product-child-info:hover {
    background: rgba(59, 130, 246, 0.1);
  }

  html.dark .product-child-name {
    color: #e2e8f0;
  }

  html.dark .product-children-count-sm {
    color: #64748b;
  }

  html.dark .product-add-child-btn-sm {
    color: #64748b;
  }

  html.dark .product-add-child-btn-sm:hover {
    background: #2563eb;
    color: white;
  }