/* ==========================================================
   이노베이션스틸 인터랙티브 공통 디자인 시스템
   is-interactive.css  (모든 서브페이지 공통 포함)
   ========================================================== */

/* ---------- 토큰 ---------- */
:root {
  --is-blue      : #1a4fa0;
  --is-blue-dk   : #0d2b5e;
  --is-blue-lt   : #e8f0fb;
  --is-gold      : #c8971a;
  --is-steel     : #8eacc8;
  --is-gray-dk   : #1e2535;
  --is-gray      : #555e6d;
  --is-gray-lt   : #f5f7fa;
  --is-border    : #dde4ef;
  --is-radius    : 12px;
  --is-radius-sm : 8px;
  --is-shadow    : 0 4px 24px rgba(26,79,160,.10);
  --is-shadow-hv : 0 8px 40px rgba(26,79,160,.20);
  --is-trans     : all .35s cubic-bezier(.4,0,.2,1);
}

/* ---------- 리셋 헬퍼 ---------- */
.is-section { padding: 70px 0; }
.is-container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ---------- 공통 섹션 헤더 ---------- */
.is-sec-head { text-align: center; margin-bottom: 50px; }
.is-sec-kicker {
  display: inline-block; letter-spacing: 3px; text-transform: uppercase;
  font-size: 12px; font-weight: 700; color: var(--is-gold);
  padding: 4px 14px; border: 1px solid var(--is-gold);
  border-radius: 20px; margin-bottom: 14px;
}
.is-sec-title {
  font-size: clamp(26px, 3vw, 40px); font-weight: 800;
  color: var(--is-gray-dk); margin: 0 0 14px; line-height: 1.2;
}
.is-sec-sub { font-size: 16px; color: var(--is-gray); line-height: 1.8; }

/* ---------- 카드 기반 ---------- */
.is-card {
  background: #fff; border: 1px solid var(--is-border);
  border-radius: var(--is-radius); box-shadow: var(--is-shadow);
  transition: var(--is-trans); overflow: hidden;
}
.is-card:hover {
  transform: translateY(-6px); box-shadow: var(--is-shadow-hv);
  border-color: var(--is-blue);
}

/* ---------- 아이콘 박스 ---------- */
.is-icon-box {
  width: 56px; height: 56px; border-radius: 14px;
  background: var(--is-blue-lt); color: var(--is-blue);
  display: flex; align-items: center; justify-content: center;
  font-size: 24px; flex-shrink: 0;
  transition: var(--is-trans);
}
.is-card:hover .is-icon-box {
  background: var(--is-blue); color: #fff;
}

/* ---------- 배지 / 칩 ---------- */
.is-badge {
  display: inline-flex; align-items: center; gap: 5px;
  background: var(--is-blue-lt); color: var(--is-blue);
  border-radius: 20px; padding: 5px 14px; font-size: 13px; font-weight: 600;
}
.is-badge-gold { background: #fdf6e3; color: var(--is-gold); }

/* ---------- 버튼 ---------- */
.is-btn-wrap { display: flex; gap: 12px; flex-wrap: wrap; justify-content: center; margin-top: 36px; }
.is-cta-btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 28px; border-radius: 50px; font-size: 15px; font-weight: 700;
  text-decoration: none; transition: var(--is-trans); border: 2px solid transparent;
}
.is-cta-btn-primary {
  background: var(--is-blue); color: #fff;
}
.is-cta-btn-primary:hover {
  background: var(--is-blue-dk); color: #fff; transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(26,79,160,.3);
}
.is-cta-btn-outline {
  background: transparent; color: var(--is-blue); border-color: var(--is-blue);
}
.is-cta-btn-outline:hover {
  background: var(--is-blue); color: #fff; transform: translateY(-3px);
}

/* ---------- 이미지 오버레이 카드 ---------- */
.is-img-card { position: relative; border-radius: var(--is-radius); overflow: hidden; }
.is-img-card img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.is-img-card:hover img { transform: scale(1.07); }
.is-img-card .is-overlay {
  position: absolute; inset: 0; background: linear-gradient(to top, rgba(13,43,94,.85) 0%, transparent 60%);
  display: flex; flex-direction: column; justify-content: flex-end; padding: 24px;
  opacity: 0; transition: var(--is-trans);
}
.is-img-card:hover .is-overlay { opacity: 1; }
.is-img-card .is-overlay h3 { color: #fff; margin: 0 0 6px; font-size: 18px; }
.is-img-card .is-overlay p  { color: rgba(255,255,255,.85); margin: 0; font-size: 14px; line-height: 1.6; }

/* ---------- 수평 분리선 ---------- */
.is-divider { width: 60px; height: 4px; background: var(--is-blue); border-radius: 2px; margin: 16px auto; }
.is-divider-left { margin: 16px 0; }

/* ---------- 스텝 / 타임라인 ---------- */
.is-steps { display: flex; gap: 0; position: relative; }
.is-steps::before {
  content: ''; position: absolute; top: 28px; left: 28px; right: 28px; height: 2px;
  background: var(--is-border); z-index: 0;
}
.is-step { flex: 1; text-align: center; position: relative; z-index: 1; }
.is-step-num {
  width: 56px; height: 56px; border-radius: 50%; border: 3px solid var(--is-border);
  background: #fff; color: var(--is-gray); font-weight: 800; font-size: 18px;
  display: inline-flex; align-items: center; justify-content: center;
  transition: var(--is-trans); margin-bottom: 12px;
}
.is-step.active .is-step-num,
.is-step:hover .is-step-num {
  background: var(--is-blue); border-color: var(--is-blue); color: #fff;
  box-shadow: 0 0 0 6px rgba(26,79,160,.12);
}
.is-step-label { font-size: 13px; color: var(--is-gray); line-height: 1.4; font-weight: 600; }

/* ---------- 탭 ---------- */
.is-tabs { display: flex; gap: 4px; border-bottom: 2px solid var(--is-border); margin-bottom: 32px; }
.is-tab {
  padding: 12px 22px; font-size: 14px; font-weight: 600; color: var(--is-gray);
  border-radius: 8px 8px 0 0; cursor: pointer; transition: var(--is-trans);
  border-bottom: 3px solid transparent; margin-bottom: -2px;
}
.is-tab:hover { color: var(--is-blue); background: var(--is-blue-lt); }
.is-tab.active { color: var(--is-blue); border-bottom-color: var(--is-blue); background: var(--is-blue-lt); }
.is-tab-content { display: none; }
.is-tab-content.active { display: block; }

/* ---------- 통계 카운터 ---------- */
.is-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 24px; }
.is-stat-card {
  text-align: center; padding: 28px 16px;
  background: #fff; border: 1px solid var(--is-border);
  border-radius: var(--is-radius); box-shadow: var(--is-shadow);
}
.is-stat-num {
  font-size: 42px; font-weight: 900; color: var(--is-blue);
  line-height: 1; margin-bottom: 8px;
}
.is-stat-num span { font-size: 24px; color: var(--is-gold); }
.is-stat-label { font-size: 14px; color: var(--is-gray); }

/* ---------- 그리드 레이아웃 ---------- */
.is-grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.is-grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.is-grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
@media(max-width:1024px) {
  .is-grid-4 { grid-template-columns: repeat(2, 1fr); }
  .is-grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media(max-width:640px) {
  .is-grid-4, .is-grid-3, .is-grid-2 { grid-template-columns: 1fr; }
}

/* ---------- 스플릿 레이아웃 ---------- */
.is-split { display: flex; gap: 60px; align-items: center; }
.is-split-reverse { flex-direction: row-reverse; }
.is-split-img { flex: 1; min-width: 0; }
.is-split-txt  { flex: 1; min-width: 0; }
@media(max-width:768px) {
  .is-split { flex-direction: column; gap: 32px; }
  .is-split-reverse { flex-direction: column; }
}

/* ---------- 강조 블록 ---------- */
.is-highlight {
  background: linear-gradient(135deg, var(--is-blue) 0%, var(--is-blue-dk) 100%);
  color: #fff; border-radius: var(--is-radius); padding: 32px 36px;
}
.is-highlight h3 { font-size: 20px; margin: 0 0 12px; }
.is-highlight p  { margin: 0; font-size: 15px; opacity: .88; line-height: 1.8; }

/* ---------- 리스트 아이템 ---------- */
.is-check-list { list-style: none; padding: 0; margin: 0; }
.is-check-list li {
  display: flex; align-items: flex-start; gap: 10px;
  padding: 8px 0; font-size: 15px; color: #444; border-bottom: 1px solid #f0f0f0;
}
.is-check-list li::before {
  content: '✓'; color: var(--is-blue); font-weight: 900; flex-shrink: 0; margin-top: 1px;
}
.is-check-list li:last-child { border-bottom: none; }

/* ---------- 태그 클라우드 ---------- */
.is-tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
.is-tag {
  background: #fff; border: 1px solid var(--is-border); color: var(--is-gray);
  border-radius: 20px; padding: 6px 16px; font-size: 13px; font-weight: 500;
  transition: var(--is-trans); cursor: default;
}
.is-tag:hover { background: var(--is-blue); color: #fff; border-color: var(--is-blue); }

/* ---------- 인포 카드 (아이콘+제목+설명) ---------- */
.is-info-card { padding: 28px; }
.is-info-card h3 { font-size: 17px; font-weight: 700; color: var(--is-gray-dk); margin: 14px 0 10px; }
.is-info-card p  { font-size: 14px; color: var(--is-gray); line-height: 1.7; margin: 0; }

/* ---------- 연락처 카드 ---------- */
.is-contact-bar {
  display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 36px;
}
.is-contact-item {
  flex: 1; min-width: 180px; padding: 20px 24px;
  background: #fff; border: 1px solid var(--is-border);
  border-radius: var(--is-radius); box-shadow: var(--is-shadow);
  display: flex; align-items: center; gap: 14px;
  transition: var(--is-trans);
}
.is-contact-item:hover {
  transform: translateY(-4px); border-color: var(--is-blue);
  box-shadow: var(--is-shadow-hv);
}
.is-contact-item .ci-icon {
  width: 46px; height: 46px; border-radius: 12px;
  background: var(--is-blue-lt); color: var(--is-blue);
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; flex-shrink: 0;
}
.is-contact-item dt { font-size: 12px; color: var(--is-gray); margin-bottom: 4px; }
.is-contact-item dd { font-size: 18px; font-weight: 800; color: var(--is-blue); }

/* ---------- 테이블 ---------- */
.is-tbl { width: 100%; border-collapse: collapse; }
.is-tbl th, .is-tbl td { padding: 13px 16px; border-bottom: 1px solid var(--is-border); text-align: left; vertical-align: middle; }
.is-tbl thead th { background: var(--is-blue); color: #fff; font-weight: 700; }
.is-tbl tbody tr { transition: background .2s; }
.is-tbl tbody tr:hover { background: var(--is-blue-lt); }
.is-tbl tbody tr:last-child td { border-bottom: none; }

/* ---------- AOS 오버라이드: 더 부드럽게 ---------- */
[data-aos] { pointer-events: none; }
[data-aos].aos-animate { pointer-events: auto; }

/* ---------- 펄스 애니메이션 ---------- */
@keyframes is-pulse {
  0%,100% { box-shadow: 0 0 0 0 rgba(26,79,160,.35); }
  50%      { box-shadow: 0 0 0 12px rgba(26,79,160,0); }
}
.is-pulse { animation: is-pulse 2.5s ease infinite; }

/* ---------- 플로팅 ---------- */
@keyframes is-float {
  0%,100% { transform: translateY(0); }
  50%      { transform: translateY(-10px); }
}
.is-float { animation: is-float 4s ease-in-out infinite; }

/* ---------- 반짝임 ---------- */
@keyframes is-shimmer {
  from { background-position: -200% center; }
  to   { background-position:  200% center; }
}
.is-shimmer-text {
  background: linear-gradient(90deg, var(--is-blue), var(--is-gold), var(--is-blue));
  background-size: 200% auto;
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: is-shimmer 4s linear infinite;
}

/* ---------- 타임라인 ---------- */
.is-timeline { position: relative; padding-left: 0; }
.is-timeline::before {
  content: ''; position: absolute; left: 50%; top: 0; bottom: 0;
  width: 2px; background: var(--is-border); transform: translateX(-50%);
}
.is-tl-item { display: flex; gap: 40px; margin-bottom: 48px; align-items: flex-start; }
.is-tl-item:nth-child(even) { flex-direction: row-reverse; }
.is-tl-body { flex: 1; }
.is-tl-year {
  width: 80px; height: 80px; border-radius: 50%;
  background: var(--is-blue); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 15px; font-weight: 900; flex-shrink: 0;
  position: relative; z-index: 1;
  box-shadow: 0 0 0 4px #fff, 0 0 0 6px var(--is-blue);
}
.is-tl-card {
  background: #fff; border: 1px solid var(--is-border); border-radius: var(--is-radius);
  padding: 24px 28px; box-shadow: var(--is-shadow); transition: var(--is-trans);
}
.is-tl-card:hover { transform: translateY(-4px); box-shadow: var(--is-shadow-hv); }
.is-tl-card h3 { font-size: 17px; font-weight: 700; color: var(--is-blue); margin: 0 0 12px; }
.is-tl-card ul { margin: 0; padding-left: 18px; }
.is-tl-card ul li { font-size: 14px; color: var(--is-gray); line-height: 1.9; }
@media(max-width:768px) {
  .is-timeline::before { left: 28px; }
  .is-tl-item, .is-tl-item:nth-child(even) {
    flex-direction: column; padding-left: 56px; position: relative;
  }
  .is-tl-year {
    position: absolute; left: 0; top: 0;
    width: 56px; height: 56px; font-size: 12px;
  }
}

/* ---------- 조직도 ---------- */
.is-org { font-family: inherit; }
.is-org-row { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }
.is-org-box {
  display: flex; align-items: center; justify-content: center;
  padding: 14px 20px; border-radius: 10px; font-weight: 700;
  min-width: 130px; text-align: center; font-size: 15px;
  transition: var(--is-trans);
}
.is-org-box-ceo {
  background: var(--is-blue-dk); color: #fff; font-size: 18px; min-width: 180px;
}
.is-org-box-dept {
  background: var(--is-blue); color: #fff;
}
.is-org-box-team {
  background: var(--is-blue-lt); color: var(--is-blue); border: 1px solid var(--is-blue);
}
.is-org-box:hover { transform: scale(1.05); box-shadow: var(--is-shadow-hv); }
.is-org-line { width: 2px; background: var(--is-border); margin: 0 auto; }
.is-org-hline {
  height: 2px; background: var(--is-border);
  display: flex; align-items: center;
}

/* ---------- 폼 플로팅 라벨 ---------- */
.is-form-group { position: relative; margin-bottom: 20px; }
.is-form-group input,
.is-form-group select,
.is-form-group textarea {
  width: 100%; padding: 14px 16px 10px;
  border: 2px solid var(--is-border); border-radius: var(--is-radius-sm);
  font-size: 15px; font-family: inherit; background: #fff;
  transition: border-color .25s; box-sizing: border-box; outline: none;
}
.is-form-group input:focus,
.is-form-group select:focus,
.is-form-group textarea:focus { border-color: var(--is-blue); }
.is-form-group label {
  position: absolute; left: 14px; top: 14px; font-size: 15px; color: var(--is-gray);
  pointer-events: none; transition: var(--is-trans); background: #fff; padding: 0 4px;
}
.is-form-group input:focus + label,
.is-form-group input:not(:placeholder-shown) + label,
.is-form-group textarea:focus + label,
.is-form-group textarea:not(:placeholder-shown) + label {
  top: -8px; font-size: 12px; color: var(--is-blue);
}