/**
 * ========================================================
 * 🔧 project.css - 사업분야 페이지 스타일
 * ========================================================
 * 역할:
 *   - 사업 분야 소개: 제품/기술 상세 설명
 *   - 섹션 레이아웃: 반복되는 사업 분야별 컨텐츠
 *   - 상품 이미지 갤러리: 2개 이미지 사이드바이사이드
 *   - 텍스트 포맷팅: 헤더/리스트/이미지 일관성
 * 내용:
 *   - .business-section: 사업 분야 섹션 (보더 구분)
 *   - .core_tech: 기술 제목 스타일
 *   - .product-sub1-list1: 제품 설명 리스트
 *   - .feature-highlight: 배경 강조 박스
 *   - .product-image: 2개 이미지 레이아웃
 *   - #project-showcase: 사업 분야 섹션 그룹
 * 사용 대상: pages/project.html
 * ======================================================== */




.business-section { 
  padding: 50px 0; 
  border-bottom: 1px solid #eee; 
}
.business-section:last-child { border-bottom: none; }
.core_tech {
  color: var(--color-point1); 
  font-size: 1.4rem;
  font-weight: 700; 
  margin-bottom: 20px;
  text-align: center;
}
.core_tech span { 
  vertical-align: middle; 
  margin-right: 8px; 
}
business-section hr {
  border: none;
  border-top: 2px solid var(--color-point1);
  width: 80px;
  margin: 20px auto 30px;
  opacity: 0.6;
}
.product-sub1-list1 { 
  font-size: 1rem; 
  line-height: 1.9; 
  color: #333;
  margin-top: 15px;
}
.product-sub1-list1 .fa-ul { 
  margin-left: 1.8em; 
  margin-top: 8px;
}
.product-item-li { font-size: 0.9rem; color: #555; }
.product-sub1 { margin-bottom: 30px; }
feature-highlight {
  background: linear-gradient(90deg, #0F4D33 0, #2A9D5D 100%);
  border-radius: 4px; padding: 10px 16px; margin-bottom: 12px;
}
.product-sub1-heading { color: #fff; font-weight: 600; font-size: 0.95rem; }
.product-image { display: flex; gap: 8px; margin-bottom: 12px; align-items: center; }
.product-image img {
  flex: 1; border-radius: 4px; object-fit: contain; max-height: 250px; background: #f9f9f9; padding: 10px;
}

@media (max-width: 768px) {
  .business-section { padding: 30px 0; }
  .core_tech { font-size: 1.2rem; margin-bottom: 15px; }
  .product-sub1-list1 { font-size: 0.9rem; line-height: 1.7; }
  .product-image { gap: 6px; margin-bottom: 10px; }
  .product-image img { max-height: 180px; padding: 8px; }
  .col-md-6 { flex: 0 0 calc(50% - 20px); }
  #project-showcase h3 { font-size: 1rem; margin: 30px 0 12px; }
}

@media (max-width: 480px) {
  .business-section { padding: 20px 0; }
  .core_tech { font-size: 1rem; margin-bottom: 12px; }
  .product-sub1-list1 { font-size: 0.8rem; line-height: 1.6; }
  .product-item-li { font-size: 0.8rem; }
  .product-image { flex-direction: column; gap: 4px; margin-bottom: 8px; }
  .product-image img { max-height: 140px; padding: 6px; }
  .col-md-6 { flex: 0 0 calc(100% - 20px); max-width: calc(100% - 20px); }
  #project-showcase h3 { font-size: 0.9rem; margin: 20px 0 8px; }
}
.apply { 
  color: #e74c3c; 
  font-weight: 600;
}
#project-showcase { padding: 40px 0; }
#project-showcase h3 {
  color: var(--color-point1); font-size: 1.1rem; font-weight: 700;
  margin: 50px 0 16px; padding-bottom: 8px;
  border-bottom: 2px solid var(--color-point1);
}

/* ===== Row & Col 그리드 시스템 ===== */
.row {
  display: flex;
  flex-wrap: wrap;
  margin: 0 -10px;
}

.col-md-6 {
  flex: 0 0 calc(50% - 20px);
  max-width: calc(50% - 20px);
  margin: 0 10px;
}

.col-md-12 {
  flex: 0 0 100%;
  max-width: 100%;
}

@media (max-width: 768px) {
  .col-md-6 {
    flex: 0 0 calc(100% - 20px);
    max-width: calc(100% - 20px);
  }
}

/* ===== 비즈니스 카드 그리드 ===== */
.business-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 30px;
  margin-bottom: 30px;
}

.business-card {
  background: #fff;
  border: 1px solid #e8e8e8;
  border-radius: 8px;
  padding: 24px;
  transition: all 0.3s ease;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  display: flex;
  gap: 20px;
}

.business-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
  border-color: var(--color-point1);
}

.card-left {
  flex: 0 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  min-width: 100px;
}

.card-right {
  flex: 1;
  display: flex;
  align-items: center;
}

.card-icon {
  font-size: 2.5rem;
  color: var(--color-point1);
  margin-bottom: 8px;
}

.card-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-dark);
  margin: 0;
  word-break: keep-all;
}

.card-list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  font-size: 0.9rem;
  color: #555;
  line-height: 1.6;
}

.card-list li {
  margin: 6px 0;
  padding: 0;
}

@media (max-width: 768px) {
  .business-cards {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  
  .business-card {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
  
  .card-left {
    align-items: flex-start;
    min-width: auto;
  }
  
  .card-right {
    align-items: flex-start;
  }
}

/* ===== 경쟁력 섹션 ===== */
.competitiveness-section {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 30px;
  margin-bottom: 30px;
}

.competitiveness-point {
  display: flex;
  gap: 20px;
  padding: 20px;
  background: #f9f9f9;
  border-radius: 6px;
  border-left: 4px solid var(--color-point1);
  transition: all 0.3s ease;
}

.competitiveness-point:hover {
  background: #f3f3f3;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.point-icon {
  font-size: 1.8rem;
  color: var(--color-point1);
  flex-shrink: 0;
  margin-top: 2px;
}

.point-content {
  flex-grow: 1;
}

.point-content h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-dark);
  margin: 0 0 8px 0;
}

.point-content p {
  font-size: 0.95rem;
  color: #555;
  margin: 0;
  line-height: 1.6;
}

@media (max-width: 768px) {
  .competitiveness-point {
    flex-direction: column;
    gap: 12px;
  }
  
  .point-icon {
    margin-top: 0;
  }
}

/* ===== 협력 업체 케이스 스터디 ===== */
.case-study-section {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 30px;
  margin-bottom: 30px;
}

.case-study-card {
  background: #fff;
  border: 1px solid #e8e8e8;
  border-radius: 8px;
  padding: 24px;
  transition: all 0.3s ease;
}

.case-study-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
  border-color: var(--color-point1);
}

.case-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-dark);
  margin: 0 0 4px 0;
}

.case-subtitle {
  font-size: 0.8rem;
  color: #999;
  margin: 0 0 12px 0;
  font-weight: 400;
}

.case-list {
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.9rem;
  color: #555;
  line-height: 1.7;
}

.case-list li {
  margin: 0;
  padding: 0;
  position: relative;
  padding-left: 16px;
}

.case-list li:before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--color-point1);
  font-weight: bold;
}

@media (max-width: 1024px) {
  .case-study-section {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .case-study-section {
    grid-template-columns: 1fr;
  }
}

/* ===== 설비 사업부 카드 ===== */
.equipment-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 30px;
  margin-bottom: 60px;
}

.equipment-card {
  background: #fff;
  border: 1px solid #e8e8e8;
  border-radius: 8px;
  overflow: hidden;
  transition: all 0.3s ease;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.equipment-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
  border-color: var(--color-point1);
}

.card-header {
  background: linear-gradient(90deg, #6b9d8a 0, #8fb9a0 100%);
  color: #fff;
  font-weight: 600;
  font-size: 0.95rem;
  margin: 0;
  padding: 12px 16px;
}

.card-images {
  display: flex;
  gap: 8px;
  padding: 12px;
  background: #f9f9f9;
  height: 160px;
}

.card-images img {
  flex: 1;
  min-width: 0;
  border-radius: 4px;
  object-fit: contain;
  background: #ffffff;
}

.card-body {
  padding: 16px;
}

.equipment-list {
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.9rem;
  color: #555;
  line-height: 1.8;
}

.equipment-list li {
  margin: 0;
  padding: 0;
  position: relative;
  padding-left: 16px;
}

.equipment-list li:before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--color-point1);
  font-weight: bold;
}

@media (max-width: 1024px) {
  .equipment-cards {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .equipment-cards {
    grid-template-columns: 1fr;
  }
}