/* 공통 스타일 */
* {
  margin: 0;
  padding: 0;
  box-box-sizing: border-box;
  scroll-behavior: smooth;
}
body {
  font-family: 'Pretendard', sans-serif;
  color: #333;
  line-height: 1.8;
}

/* 헤더 (메뉴 일관성) */
.header {
  background: #002244;
  color: white;
  padding: 1rem 10%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 100;
}
.nav-list {
  display: flex;
  list-style: none;
}
.nav-list li {
  margin-left: 20px;
}
.nav-list a {
  color: white;
  text-decoration: none;
  font-size: 0.9rem;
}

/* 메인 화면 */
.hero {
  height: 50vh;
  background: linear-gradient(135deg, #002244, #0055aa);
  color: white;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
}
.hero h1 {
  font-size: 2.5rem;
  margin-bottom: 10px;
}

/* 섹션 레이아웃 */
.section {
  padding: 80px 10%;
}
.section-title {
  text-align: center;
  margin-bottom: 40px;
  font-size: 2rem;
  color: #002244;
}
.bg-light {
  background: #f8f9fa;
}

/* 그리드 시스템 (반응형의 핵심) */
.grid {
  display: grid;
  grid-template-columns: repeat(
    auto-fit,
    minmax(280px, 1fr)
  ); /* 화면 작아지면 자동으로 밑으로 내려감 */
  gap: 20px;
}
.card {
  padding: 20px;
  border: 1px solid #ddd;
  border-radius: 8px;
  background: white;
  transition: 0.3s;
}
.card:hover {
  border-color: #0055aa;
  transform: translateY(-5px);
}

/* 링크 버튼 스타일 */
.link-btn,
.ext-link {
  display: inline-block;
  padding: 10px 20px;
  background: #0055aa;
  color: white;
  text-decoration: none;
  border-radius: 5px;
  margin-top: 10px;
}

/* 📱 모바일 반응형 처리 */
@media (max-width: 768px) {
  .header {
    flex-direction: column;
    text-align: center;
  }
  .nav-list {
    margin-top: 10px;
  }
  .hero h1 {
    font-size: 1.8rem;
  }
  .section {
    padding: 50px 5%;
  }
}

/* 카드 내부 스타일 보완 */
.badge {
  display: inline-block;
  padding: 2px 8px;
  background: #e1ecf4;
  color: #39739d;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: bold;
  margin-bottom: 10px;
}
.desc {
  font-weight: bold;
  margin-bottom: 10px;
  font-size: 0.95rem;
}
.points {
  list-style: none;
  font-size: 0.85rem;
  color: #666;
  margin-bottom: 15px;
}
.points li::before {
  content: '• ';
  color: #0055aa;
}
.small-btn {
  text-decoration: none;
  font-size: 0.8rem;
  color: #0055aa;
  border: 1px solid #0055aa;
  padding: 4px 10px;
  border-radius: 4px;
  margin-right: 5px;
  transition: 0.2s;
}
.small-btn:hover {
  background: #0055aa;
  color: white;
}

/* 팀원 소개 그리드 */
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 15px;
  margin-bottom: 30px;
}
.team-member-card {
  background: #fdfdfd;
  padding: 15px;
  border-radius: 8px;
  border: 1px solid #eee;
  font-size: 0.9rem;
}
.team-member-card strong {
  display: block;
  color: #333;
  margin-bottom: 5px;
}
.team-member-card p {
  color: #666;
  margin: 0;
  line-height: 1.4;
}
.team-member-card.highlight {
  border: 1px solid #0055aa;
  background: #f0f7ff;
}

@media (max-width: 600px) {
  .team-grid {
    grid-template-columns: 1fr;
  }
}