/* ============================================================
   0. 디자인 토큰 (색상 / 타이포 / 간격)
   화이트-블랙 단색조로 통일. 별도 강조색을 쓰지 않고
   명도 대비와 여백만으로 위계를 만든다.
   ============================================================ */
:root{
  --black:#0a0a0a;         /* 어두운 섹션 배경 */
  --near-black:#131313;    /* 어두운 섹션 내 카드/구분 배경 */
  --white:#ffffff;         /* 밝은 섹션 배경 */
  --off-white:#f5f5f3;     /* 밝은 섹션 내 카드 배경 */
  --ink:#111111;           /* 밝은 배경 위 본문 텍스트 */
  --paper:#f7f7f5;         /* 어두운 배경 위 본문 텍스트에 가까운 흰색 */
  --muted-on-white:#6d6d6a;
  --muted-on-black:#9a9a97;
  --line-on-white:#dcdcd8;
  --line-on-black:#2a2a2a;

  --font-body:'Noto Sans KR', -apple-system, BlinkMacSystemFont, 'Malgun Gothic', sans-serif;
  --font-mono:'Noto Sans KR', -apple-system, BlinkMacSystemFont, 'Malgun Gothic', sans-serif;

  --max-w:1180px;
  --gutter:clamp(24px, 5vw, 64px);
}

*{ box-sizing:border-box; margin:0; padding:0; }
html{ scroll-behavior:smooth; }
button, input, textarea, select{ font-family:inherit; }
body{
  font-family:var(--font-body);
  background:var(--white);
  color:var(--ink);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  word-break:keep-all;
  overflow-wrap:break-word;
}
img,svg{ display:block; max-width:100%; }
a{ color:inherit; text-decoration:none; }
ul{ list-style:none; }

/* 키보드 포커스가 명확히 보이도록 (접근성) */
a:focus-visible, button:focus-visible{
  outline:2px solid currentColor;
  outline-offset:4px;
}

/* 모션 최소화를 원하는 사용자를 위한 배려 */
@media (prefers-reduced-motion: reduce){
  *{ animation-duration:0.001ms !important; transition-duration:0.001ms !important; }
  html{ scroll-behavior:auto; }
}

.wrap{
  max-width:var(--max-w);
  margin:0 auto;
  padding-left:var(--gutter);
  padding-right:var(--gutter);
}

section{ position:relative; }

/* 섹션 라벨: 실제로 순번이 있는 "프로세스" 섹션에서만 숫자를 사용한다 */
.eyebrow{
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:0.02em;
  color:var(--muted-on-white);
}
.on-black .eyebrow{ color:var(--muted-on-black); }

h1,h2,h3{ font-weight:600; letter-spacing:-0.01em; }

/* ============================================================
   1. 헤더 / 내비게이션
   스크롤에 따라 배경이 살짝 불투명해지는 고정 헤더
   ============================================================ */
header{
  position:fixed; top:0; left:0; right:0; z-index:100;
  background:rgba(255,255,255,0.86);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:border-color .25s ease, background-color .25s ease;
}
header.scrolled{
  border-bottom-color:var(--line-on-white);
}
.nav-inner{
  max-width:var(--max-w);
  margin:0 auto;
  padding:18px var(--gutter);
  display:flex;
  align-items:center;
  justify-content:space-between;
}
.logo{
  display:flex;
  align-items:center;
}
.logo a{
  display:flex;
  align-items:center;
}
.logo .logo-mark{
  width:220px;
  height:auto;
  object-fit:contain;
}
nav.primary-nav{ display:flex; align-items:center; gap:36px; }
.nav-links{ display:flex; gap:32px; font-size:14.5px; }
.nav-links a{ position:relative; padding:4px 0; }
.nav-links a::after{
  content:'';
  position:absolute; left:0; right:0; bottom:0;
  height:1px; background:var(--ink);
  transform:scaleX(0); transform-origin:left;
  transition:transform .2s ease;
}
.nav-links a:hover::after{ transform:scaleX(1); }

/* 언어 전환 드롭다운: 선택된 언어를 트리거 버튼에 표시하고, 클릭 시 목록을 펼친다 */
.lang-select{ position:relative; }
.lang-select-trigger{
  display:flex; align-items:center; gap:8px;
  border:1px solid var(--line-on-white);
  border-radius:999px;
  padding:7px 12px 7px 14px;
  background:none;
  font-family:var(--font-mono);
  font-size:12px;
  color:var(--ink);
  cursor:pointer;
  transition:border-color .2s ease;
}
.lang-select-trigger:hover{ border-color:var(--ink); }
.lang-select-trigger .lang-flag{ font-size:14px; line-height:1; }
.lang-select-trigger .lang-chevron{ transition:transform .2s ease; flex-shrink:0; }
.lang-select.open .lang-select-trigger .lang-chevron{ transform:rotate(180deg); }

.lang-select-menu{
  position:absolute; top:calc(100% + 10px); left:0;
  min-width:150px;
  background:var(--white);
  border:1px solid var(--line-on-white);
  border-radius:8px;
  box-shadow:0 16px 32px -12px rgba(0,0,0,.18);
  overflow:hidden;
  padding:4px;
  opacity:0; visibility:hidden;
  transform:translateY(-6px);
  transition:opacity .15s ease, transform .15s ease, visibility .15s;
  z-index:200;
}
.lang-select.open .lang-select-menu{
  opacity:1; visibility:visible; transform:translateY(0);
}
.lang-option{
  display:flex; align-items:center; gap:10px;
  width:100%;
  border:none; background:none; cursor:pointer;
  border-radius:5px;
  padding:9px 10px;
  font-family:var(--font-body);
  font-size:13.5px;
  color:var(--ink);
  text-align:left;
  transition:background-color .15s ease;
}
.lang-option:hover{ background:var(--off-white); }
.lang-option.active{ font-weight:600; }
.lang-option .lang-flag{ font-size:14.5px; line-height:1; }
.lang-option .lang-label{ flex:1; }
.lang-option .lang-check{ flex-shrink:0; opacity:0; }
.lang-option.active .lang-check{ opacity:1; }

.menu-btn{ display:none; background:none; border:none; cursor:pointer; }

/* ============================================================
   2. 히어로
   검정 배경 + 대형 타이틀 + 얇은 선으로 그린 조준선 모티프.
   모티프는 로드 시 한 번만 그려지고(스트로크 드로우) 이후 정지 상태로 남는다.
   ============================================================ */
.hero{
  position:relative;
  background:var(--black);
  color:var(--paper);
  padding:calc(96px + 64px) var(--gutter) 96px;
  min-height:92vh;
  display:flex;
  align-items:center;
  overflow:hidden;
}
.hero-bg{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
  z-index:0;
}
.hero-overlay{
  position:absolute;
  inset:0;
  z-index:1;
  background:linear-gradient(90deg, rgba(10,10,10,.92) 0%, rgba(10,10,10,.88) 40%, rgba(10,10,10,.55) 72%, rgba(10,10,10,.35) 100%);
}
.hero-inner{
  position:relative;
  z-index:2;
  max-width:var(--max-w);
  margin:0 auto;
  width:100%;
  display:grid;
  grid-template-columns:1.3fr 0.9fr;
  gap:64px;
  align-items:center;
}
.hero-eyebrow{
  font-family:var(--font-mono);
  font-size:13px;
  color:var(--muted-on-black);
  margin-bottom:22px;
  display:flex;
  align-items:center;
  gap:10px;
}
.hero-eyebrow .dot{
  width:6px; height:6px; border-radius:50%;
  background:var(--paper);
}
.hero h1{
  font-size:clamp(34px, 4.6vw, 58px);
  line-height:1.18;
  font-weight:600;
  max-width:14ch;
}
.hero p.lede{
  margin-top:26px;
  font-size:clamp(15px, 1.4vw, 18px);
  color:var(--muted-on-black);
  max-width:46ch;
  line-height:1.75;
}
.hero-actions{
  margin-top:40px;
  display:flex;
  gap:14px;
  flex-wrap:wrap;
}
.btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:13px 24px;
  font-size:14.5px;
  font-weight:500;
  border-radius:2px;
  cursor:pointer;
  border:1px solid transparent;
  transition:opacity .2s ease, background-color .2s ease, color .2s ease;
}
.btn-primary{ background:var(--paper); color:var(--black); }
.btn-primary:hover{ opacity:0.85; }
.btn-ghost{ border-color:var(--line-on-black); color:var(--paper); }
.btn-ghost:hover{ border-color:var(--paper); }
.on-white .btn-ghost{ border-color:var(--line-on-white); color:var(--ink); }
.on-white .btn-ghost:hover{ border-color:var(--ink); }

/* 조준선(SVG) - 스트로크 드로우 애니메이션은 딱 한 번, 페이지 진입 시에만 재생 */
.reticle-mark{ justify-self:end; width:100%; max-width:320px; }
.reticle-mark svg{ width:100%; height:auto; }
.reticle-mark path,
.reticle-mark circle,
.reticle-mark line{
  stroke:var(--paper);
  fill:none;
  stroke-width:1;
  stroke-dasharray:600;
  stroke-dashoffset:600;
  animation:draw 1.6s cubic-bezier(.16,.84,.44,1) forwards;
}
.reticle-mark .center-dot{
  fill:var(--paper); stroke:none;
  opacity:0;
  animation:fadeIn .4s ease forwards 1.4s;
}
@keyframes draw{ to{ stroke-dashoffset:0; } }
@keyframes fadeIn{ to{ opacity:1; } }

/* ============================================================
   3. 공통 섹션 레이아웃
   ============================================================ */
.section{ padding:112px 0; }
.on-black{ background:var(--black); color:var(--paper); }
.on-white{ background:var(--white); color:var(--ink); }
.on-offwhite{ background:var(--off-white); color:var(--ink); }

.section-head{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:40px;
  align-items:end;
  margin-bottom:64px;
}
.section-head h2{
  font-size:clamp(26px, 3vw, 38px);
  line-height:1.3;
  max-width:16ch;
}
.section-head .desc{
  font-size:15.5px;
  color:var(--muted-on-white);
  line-height:1.8;
  max-width:44ch;
}
.on-black .section-head .desc{ color:var(--muted-on-black); }

/* 팀 섹션 제목/설명은 한 줄로 표시 */
#team .section-head h2,
#team .section-head .desc{
  max-width:none;
  white-space:nowrap;
}

/* 기술 섹션 제목은 텍스트 안의 줄바꿈을 그대로 살려 지정한 지점에서 두 줄로 표시 */
#technology .section-head h2{
  max-width:none;
  white-space:pre-line;
}

/* ---- 문제(Problem) 섹션 : 가로선으로 구분되는 리스트 ---- */
.issue-list{
  border-top:1px solid var(--line-on-white);
}
.issue-row{
  display:grid;
  grid-template-columns:120px 1fr;
  gap:32px;
  padding:28px 0;
  border-bottom:1px solid var(--line-on-white);
}
.issue-row .tag{
  font-family:var(--font-mono);
  font-size:12.5px;
  color:var(--muted-on-white);
  padding-top:2px;
}
.issue-row h3{ font-size:17px; font-weight:600; margin-bottom:6px; }
.issue-row p{ font-size:14.5px; color:var(--muted-on-white); max-width:56ch; }

/* ---- 솔루션(Solution) 섹션 : 카드 그리드 ---- */
.feature-grid{
  display:grid;
  grid-template-columns:repeat(3, 1fr);
  gap:1px;
  background:var(--line-on-black);
  border:1px solid var(--line-on-black);
}
.feature-card{
  background:var(--black);
  padding:34px 28px;
}
.feature-card .num{
  font-family:var(--font-mono);
  font-size:12.5px;
  color:var(--muted-on-black);
  margin-bottom:20px;
  display:block;
}
.feature-card h3{ font-size:17px; margin-bottom:10px; }
.feature-card p{ font-size:14px; color:var(--muted-on-black); line-height:1.75; }

/* ---- 프로세스(Process) 섹션 : 개발 타임라인 ---- */
.timeline-scroll{
  overflow-x:auto;
  -webkit-overflow-scrolling:touch;
  padding-bottom:4px;
}
.timeline-rail{
  position:relative;
  min-width:1220px;
  padding:76px 72px 44px;
}
.timeline-track{
  position:absolute;
  left:72px; right:72px;
  top:82px;
  height:2px;
  background:var(--line-on-white);
}
.timeline-progress{
  position:absolute;
  left:0; top:0;
  height:100%;
  background:var(--ink);
}
.timeline-list{
  position:relative;
  display:flex;
  justify-content:space-between;
}
.timeline-item{
  position:relative;
  display:flex;
  flex-direction:column;
  align-items:center;
}
.timeline-dot{
  position:relative;
  z-index:2;
  width:12px;
  height:12px;
  border-radius:50%;
  background:var(--white);
  border:2px solid var(--muted-on-white);
}
.timeline-item.is-active .timeline-dot{ background:var(--ink); border-color:var(--ink); }
.timeline-label{
  position:absolute;
  bottom:calc(100% + 16px);
  left:50%;
  transform:translateX(-50%);
  width:128px;
  text-align:center;
  white-space:normal;
  line-height:1.4;
  font-size:12px;
  color:var(--muted-on-white);
}
.timeline-item.is-active .timeline-label{ color:var(--ink); font-weight:500; }
.timeline-caption{
  position:absolute;
  top:calc(100% + 14px);
  left:50%;
  transform:translateX(-50%);
  font-family:var(--font-mono);
  font-size:11px;
  color:var(--muted-on-white);
  white-space:nowrap;
}
.timeline-hint{
  display:none;
  margin-top:12px;
  font-family:var(--font-mono);
  font-size:11.5px;
  color:var(--muted-on-white);
}

/* ---- 성과(Achievements) 섹션 : 수상 사진 카드 ---- */
.award-grid{
  display:grid;
  grid-template-columns:repeat(2, 1fr);
  gap:24px;
}
.award-card{
  position:relative;
  aspect-ratio:4 / 3;
  border:1px solid var(--line-on-white);
  overflow:hidden;
  background:var(--off-white);
}
.award-card-trigger{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  border:none;
  padding:0;
  background:none;
  cursor:pointer;
  display:block;
  text-align:left;
}
.award-card-img{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .6s cubic-bezier(.16,.84,.44,1);
}
.award-card-trigger:hover .award-card-img{ transform:scale(1.08); }
.award-card-img.img-missing{ display:none; }

.award-card-placeholder{
  position:absolute;
  inset:0;
  display:none;
  align-items:center;
  justify-content:center;
  font-size:13px;
  color:var(--muted-on-white);
}
.award-card-img.img-missing ~ .award-card-placeholder{ display:flex; }

.award-card-overlay{
  position:absolute;
  inset:0;
  z-index:2;
  display:flex;
  flex-direction:column;
  justify-content:space-between;
  padding:20px;
  background:linear-gradient(180deg, rgba(10,10,10,0) 42%, rgba(10,10,10,.78) 100%);
  pointer-events:none;
}
.award-arrow{
  margin-left:auto;
  width:34px; height:34px;
  border:1px solid rgba(255,255,255,.55);
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  color:var(--paper);
  transition:transform .4s ease, background-color .3s ease;
}
.award-card-trigger:hover .award-arrow{
  transform:rotate(-45deg);
  background:rgba(255,255,255,.15);
}
.award-card-caption strong{
  display:block;
  font-size:16px;
  font-weight:600;
  color:var(--paper);
  margin-bottom:4px;
}
.award-card-caption span{
  display:block;
  font-size:12.5px;
  color:rgba(247,247,245,.78);
  line-height:1.6;
}

/* ---- 수상 사진 라이트박스 ---- */
.lightbox{
  position:fixed;
  inset:0;
  z-index:300;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:32px;
  background:rgba(10,10,10,.92);
  opacity:0;
  visibility:hidden;
  transition:opacity .25s ease, visibility .25s;
}
.lightbox.open{ opacity:1; visibility:visible; }
.lightbox-inner{ max-width:900px; width:100%; }
.lightbox-img{
  display:block;
  width:100%;
  max-height:70vh;
  object-fit:contain;
  background:var(--near-black);
  border:1px solid var(--line-on-black);
}
.lightbox-img.img-missing{ display:none; }
.lightbox-placeholder{
  display:none;
  align-items:center;
  justify-content:center;
  height:min(70vh, 420px);
  border:1px solid var(--line-on-black);
  background:var(--near-black);
  color:var(--muted-on-black);
  font-size:14px;
}
.lightbox-img.img-missing ~ .lightbox-placeholder{ display:flex; }
.lightbox-caption{
  margin-top:18px;
  color:var(--paper);
  font-size:14.5px;
  text-align:center;
}
.lightbox-link{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  width:fit-content;
  margin:18px auto 0;
  padding:10px 20px;
  border:1px solid var(--line-on-black);
  border-radius:2px;
  color:var(--paper);
  font-size:13.5px;
  transition:border-color .2s ease, background-color .2s ease;
}
.lightbox-link:hover{ border-color:var(--paper); background:rgba(255,255,255,.06); }
.lightbox-close{
  position:absolute;
  top:24px; right:24px;
  width:40px; height:40px;
  border:1px solid var(--line-on-black);
  border-radius:999px;
  background:none;
  color:var(--paper);
  font-size:22px;
  line-height:1;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:center;
  transition:border-color .2s ease;
}
.lightbox-close:hover{ border-color:var(--paper); }

/* ---- 팀 소개 섹션 ---- */
.team-grid{
  display:grid;
  grid-template-columns:repeat(5, 1fr);
  gap:1px;
  background:var(--line-on-white);
  border:1px solid var(--line-on-white);
}
.team-card{
  background:var(--white);
  padding:32px 28px 36px;
  display:flex;
  flex-direction:column;
}
.team-photo{
  position:relative;
  width:100%;
  aspect-ratio:1 / 1;
  overflow:hidden;
  background:var(--off-white);
  border:1px solid var(--line-on-white);
  margin-bottom:20px;
}
.team-photo img{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
}
.team-photo img.img-missing{ display:none; }
.team-photo-placeholder{
  position:absolute;
  inset:0;
  display:none;
  align-items:center;
  justify-content:center;
  font-size:12.5px;
  color:var(--muted-on-white);
}
.team-photo img.img-missing ~ .team-photo-placeholder{ display:flex; }

.team-name{ font-size:19px; font-weight:600; margin-bottom:4px; }
.team-role{
  font-family:var(--font-mono);
  font-size:12.5px;
  color:var(--muted-on-white);
  margin-bottom:16px;
}

/* 자세히 보기 버튼 — 누르면 팀원 상세 모달이 뜬다 */
.team-toggle{
  display:inline-flex;
  align-items:center;
  gap:6px;
  align-self:flex-start;
  border:none;
  background:none;
  padding:0;
  cursor:pointer;
  font-size:12.5px;
  font-weight:500;
  color:var(--ink);
}
.team-toggle:hover .team-toggle-icon{ transform:translateX(3px); }
.team-toggle-icon{ transition:transform .25s ease; }

/* 카드 안에서는 학력/경력/자격증을 숨겨두고, 모달로 옮겨졌을 때만 보여준다 */
.team-detail-list{ display:none; flex-direction:column; gap:16px; }
.team-modal-body .team-detail-list{ display:flex; }
.team-detail dt{
  font-family:var(--font-mono);
  font-size:11px;
  color:var(--muted-on-black);
  letter-spacing:.04em;
  margin-bottom:6px;
}
.team-detail dd ul{ display:flex; flex-direction:column; gap:4px; }
.team-detail dd li{
  font-size:13.5px;
  color:var(--paper);
  line-height:1.6;
  padding-left:12px;
  position:relative;
}
.team-detail dd li::before{
  content:'';
  position:absolute;
  left:0; top:0.75em;
  width:4px; height:1px;
  background:var(--muted-on-black);
}

/* ---- 팀원 상세 모달 ---- */
.team-modal{
  position:fixed;
  inset:0;
  z-index:300;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:32px;
  background:rgba(10,10,10,.92);
  opacity:0;
  visibility:hidden;
  transition:opacity .3s ease, visibility .3s;
}
.team-modal.open{ opacity:1; visibility:visible; }
.team-modal-inner{
  display:flex;
  width:100%;
  max-width:760px;
  max-height:85vh;
  overflow-y:auto;
  background:var(--near-black);
  border:1px solid var(--line-on-black);
  transform:translateY(18px) scale(.97);
  transition:transform .4s cubic-bezier(.16,.84,.44,1);
}
.team-modal.open .team-modal-inner{ transform:translateY(0) scale(1); }
.team-modal-photo{
  position:relative;
  width:240px;
  flex-shrink:0;
  align-self:flex-start;
  min-height:220px;
  display:flex;
  align-items:flex-start;
  justify-content:center;
  overflow:hidden;
  background:var(--near-black);
  border-right:1px solid var(--line-on-black);
  border-bottom:1px solid var(--line-on-black);
}
.team-modal-photo img{
  display:block;
  width:100%;
  height:auto;
  max-height:70vh;
}
.team-modal-photo img.img-missing{ display:none; }
.team-modal-photo-placeholder{
  position:absolute;
  inset:0;
  display:none;
  align-items:center;
  justify-content:center;
  font-size:12.5px;
  color:var(--muted-on-white);
  text-align:center;
  padding:16px;
}
.team-modal-photo img.img-missing ~ .team-modal-photo-placeholder{ display:flex; }
.team-modal-body{ padding:36px 32px; flex:1; min-width:0; }
.team-modal-name{ font-size:22px; font-weight:600; color:var(--paper); margin-bottom:4px; }
.team-modal-role{
  font-family:var(--font-mono);
  font-size:13px;
  color:var(--muted-on-black);
  margin-bottom:26px;
}
.team-modal-close{
  position:absolute;
  top:24px; right:24px;
  width:40px; height:40px;
  border:1px solid var(--line-on-black);
  border-radius:999px;
  background:none;
  color:var(--paper);
  font-size:22px;
  line-height:1;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:center;
  transition:border-color .2s ease;
}
.team-modal-close:hover{ border-color:var(--paper); }

@media (max-width: 640px){
  .team-modal-inner{ flex-direction:column; max-height:90vh; }
  .team-modal-photo{ width:100%; min-height:0; border-right:none; border-bottom:1px solid var(--line-on-black); }
  .team-modal-photo img{ max-height:40vh; }
}

/* ---- 문의(Contact) 섹션 ---- */
.contact-block{
  display:grid;
  grid-template-columns:1.2fr 0.8fr;
  gap:56px;
  align-items:center;
}
.contact-block h2{
  font-size:clamp(28px, 3.6vw, 44px);
  line-height:1.25;
  max-width:14ch;
}
.contact-info{ border-left:1px solid var(--line-on-black); padding-left:36px; }
.contact-info .row{ margin-bottom:24px; }
.contact-info .label{
  font-family:var(--font-mono);
  font-size:12px;
  color:var(--muted-on-black);
  margin-bottom:6px;
}
.contact-info .value{ font-size:16px; }
.contact-info a.value:hover{ text-decoration:underline; }

/* ---- 문의 카드 (Contact Card) ---- */
.contact-card{
  position:relative;
  display:grid;
  grid-template-columns:1.3fr 1fr;
  border:1px solid var(--line-on-black);
  background:var(--black);
}
.contact-card .corner-mark{
  position:absolute;
  width:18px; height:18px;
  color:var(--paper);
}
.contact-card .corner-mark.tl{ top:-9px; left:-9px; }
.contact-card .corner-mark.tr{ top:-9px; right:-9px; }
.contact-card .corner-mark.bl{ bottom:-9px; left:-9px; }
.contact-card .corner-mark.br{ bottom:-9px; right:-9px; }

.contact-card-info{
  padding:56px 48px;
  border-right:1px solid var(--line-on-black);
}
.contact-card-info h2{
  font-size:clamp(26px, 3vw, 36px);
  line-height:1.3;
  max-width:16ch;
  margin-bottom:18px;
}
.contact-card-info .desc{
  font-size:14.5px;
  color:var(--muted-on-black);
  line-height:1.8;
  max-width:46ch;
}
.contact-info-grid{
  display:flex;
  flex-direction:column;
  gap:24px;
  margin-top:40px;
}
.contact-info-item{
  display:flex;
  align-items:flex-start;
  gap:14px;
}
.contact-info-item .icon-box{
  flex-shrink:0;
  border:1px solid var(--line-on-black);
  background:var(--near-black);
  padding:10px;
}
.contact-info-item .icon-box svg{
  width:17px; height:17px;
  stroke:var(--paper);
  fill:none;
}
.contact-info-item .info-label{
  font-size:14.5px;
  font-weight:600;
  margin-bottom:3px;
}
.contact-info-item .info-value{
  font-size:12.5px;
  color:var(--muted-on-black);
}
.contact-info-item a.info-value:hover{ text-decoration:underline; }

.contact-card-form{
  padding:48px 40px;
  background:var(--near-black);
  display:flex;
  align-items:center;
}
.contact-card-form form{ width:100%; }
.form-group{ margin-bottom:18px; }
.form-group label{
  display:block;
  font-family:var(--font-mono);
  font-size:11.5px;
  color:var(--muted-on-black);
  margin-bottom:8px;
  letter-spacing:0.02em;
}
.form-group input,
.form-group textarea{
  width:100%;
  background:transparent;
  border:1px solid var(--line-on-black);
  color:var(--paper);
  padding:11px 13px;
  font-family:var(--font-body);
  font-size:14px;
  border-radius:2px;
  transition:border-color .2s ease;
}
.form-group textarea{ resize:vertical; min-height:88px; }
.form-group input:focus,
.form-group textarea:focus{ outline:none; border-color:var(--paper); }
.contact-card-form .btn-submit{
  width:100%;
  justify-content:center;
  margin-top:4px;
}
.contact-card-form .btn-submit:disabled{ opacity:0.6; cursor:default; }
.form-status{
  margin-top:14px;
  font-size:13px;
  text-align:center;
}
.form-status.sending{ color:var(--muted-on-black); }
.form-status.success{ color:var(--paper); }
.form-status.error{ color:#e0a3a3; }

@media (max-width: 900px){
  .contact-card{ grid-template-columns:1fr; }
  .contact-card-info{ border-right:none; border-bottom:1px solid var(--line-on-black); padding:40px 28px; }
  .contact-card-form{ padding:40px 28px; }
}

.site-footer{
  background:var(--black);
  color:var(--muted-on-black);
  border-top:1px solid var(--line-on-black);
}
.footer-top{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr;
  gap:48px;
  padding:72px var(--gutter) 56px;
}
.footer-brand .footer-logo{
  width:180px;
  height:auto;
  object-fit:contain;
  margin-bottom:16px;
}
.footer-brand p{
  font-size:13.5px;
  color:var(--muted-on-black);
  max-width:32ch;
  line-height:1.7;
}
.footer-col h4{
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:400;
  color:var(--muted-on-black);
  letter-spacing:0.04em;
  margin-bottom:18px;
}
.footer-col ul{ display:flex; flex-direction:column; gap:12px; }
.footer-col li{ font-size:14px; color:var(--paper); }
.footer-col a{ position:relative; }
.footer-col a:hover{ color:var(--muted-on-black); }
.footer-bottom{
  padding:22px var(--gutter);
  border-top:1px solid var(--line-on-black);
  font-size:13px;
}
.footer-bottom .foot-mark{ font-family:var(--font-mono); }

/* ============================================================
   4. 반응형
   ============================================================ */
@media (max-width: 1100px){
  .team-grid{ grid-template-columns:repeat(3, 1fr); }
}
@media (max-width: 900px){
  .hero-inner{ grid-template-columns:1fr; }
  .reticle-mark{ justify-self:start; max-width:160px; order:-1; }
  .hero-overlay{ background:rgba(10,10,10,.82); }
  .section-head{ grid-template-columns:1fr; }
  #team .section-head h2,
  #team .section-head .desc{ white-space:normal; }
  .feature-grid{ grid-template-columns:1fr; }
  .award-grid{ grid-template-columns:1fr; }
  .team-grid{ grid-template-columns:repeat(2, 1fr); }
  .issue-row{ grid-template-columns:1fr; gap:6px; }
  .timeline-hint{ display:block; }
  .contact-block{ grid-template-columns:1fr; }
  .contact-info{ border-left:none; padding-left:0; border-top:1px solid var(--line-on-black); padding-top:28px; }
  .footer-top{ grid-template-columns:1fr; gap:40px; padding:56px var(--gutter) 40px; }
}
@media (max-width: 560px){
  .team-grid{ grid-template-columns:1fr; }
}
@media (max-width: 760px){
  .logo .logo-mark{ width:160px; }
  .nav-links{
    position:fixed; top:72px; left:0; right:0;
    background:var(--white);
    border-bottom:1px solid var(--line-on-white);
    flex-direction:column;
    padding:20px var(--gutter);
    gap:18px;
    display:none;
  }
  .nav-links.open{ display:flex; }
  .menu-btn{ display:block; }
}