/* ============================================================
   JnBLabs (주)제이앤비랩스 — 공통 스타일시트
   색상·글꼴을 바꾸려면 아래 :root 값만 수정하면 전체에 반영됩니다.
   ============================================================ */

:root{
  /* --- 색상 --- */
  --ink:#14171a;          /* 본문 진한 글자 */
  --ink-2:#4a5257;        /* 보조 글자 */
  --ink-3:#8a9298;        /* 흐린 글자 */
  --paper:#f7f7f5;        /* 기본 배경 */
  --surface:#ffffff;      /* 카드 배경 */
  --concrete:#e6e6e1;     /* 구분선·연회색 면 */
  --deep:#191c20;         /* 어두운 섹션 */
  --signal:#ff5a12;       /* 포인트(계측·열) 색 */
  --signal-soft:#fff0e8;

  /* --- 글꼴 --- */
  --font-display:'Poppins','IBM Plex Sans KR',sans-serif;
  --font-body:'IBM Plex Sans KR','Pretendard','Noto Sans KR',-apple-system,sans-serif;
  --font-mono:'IBM Plex Mono','SFMono-Regular',Menlo,monospace;

  /* --- 레이아웃 --- */
  --maxw:1180px;
  --pad:24px;
  --radius:2px;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;background:var(--paper);color:var(--ink);overflow-x:clip;
  font-family:var(--font-body);font-weight:400;font-size:16px;line-height:1.75;
  letter-spacing:-0.01em;-webkit-font-smoothing:antialiased;
}
img,svg{max-width:100%;}
img{display:block;}
a{color:inherit;text-decoration:none;}
h1,h2,h3,h4{margin:0;font-weight:600;line-height:1.3;letter-spacing:-0.03em;}
p{margin:0 0 1em;}
ul{margin:0;padding:0;list-style:none;}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 var(--pad);}
.only-sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);}

/* ---------- 로고 ---------- */
.logo{font-family:var(--font-display);font-size:23px;font-weight:700;
  letter-spacing:-0.045em;line-height:1;display:inline-flex;align-items:baseline;gap:.14em;}
.logo .lg-n{color:var(--signal);font-weight:700;}
.logo .lg-labs{font-weight:300;letter-spacing:-0.02em;}
.logo-sub{display:block;font-family:var(--font-body);font-size:10.5px;font-weight:400;
  color:var(--ink-3);letter-spacing:.06em;margin-top:3px;}

/* ---------- 헤더 ---------- */
.site-head{position:sticky;top:0;z-index:50;background:rgba(247,247,245,.92);
  backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--concrete);}
.head-inner{display:flex;align-items:center;justify-content:space-between;height:74px;}
.nav-list{display:flex;align-items:center;gap:30px;}
.nav-list a{font-size:14.5px;font-weight:500;color:var(--ink-2);padding:6px 0;
  position:relative;transition:color .18s;}
.nav-list a:hover{color:var(--ink);}
.nav-list a.is-current{color:var(--ink);}
.nav-list a.is-current::after{content:"";position:absolute;left:0;right:0;bottom:-2px;
  height:2px;background:var(--signal);}
.nav-toggle{display:none;width:40px;height:40px;border:1px solid var(--concrete);
  background:var(--surface);border-radius:var(--radius);cursor:pointer;padding:0;}
.nav-toggle span{display:block;width:17px;height:1.5px;background:var(--ink);margin:4px auto;
  transition:transform .2s,opacity .2s;}
.nav-open .nav-toggle span:nth-child(1){transform:translateY(5.5px) rotate(45deg);}
.nav-open .nav-toggle span:nth-child(2){opacity:0;}
.nav-open .nav-toggle span:nth-child(3){transform:translateY(-5.5px) rotate(-45deg);}

/* ---------- 공통 섹션 ---------- */
.section{padding:96px 0;}
.section--tight{padding:64px 0;}
.section--dark{background:var(--deep);color:#e9eaec;}
.section--dark h2,.section--dark h3{color:#fff;}
.section--concrete{background:var(--concrete);}

.eyebrow{font-family:var(--font-display);font-size:11px;font-weight:600;letter-spacing:.18em;
  text-transform:uppercase;color:var(--signal);display:block;margin-bottom:14px;}
.section--dark .eyebrow{color:var(--signal);}
.sec-title{font-size:clamp(26px,3.4vw,38px);margin-bottom:16px;}
.sec-lead{font-size:17px;color:var(--ink-2);max-width:62ch;}
.section--dark .sec-lead{color:#a9b0b6;}
.sec-head{margin-bottom:52px;}

/* ---------- 버튼 ---------- */
.btn{display:inline-flex;align-items:center;gap:9px;font-size:14.5px;font-weight:500;
  padding:13px 24px;border-radius:var(--radius);transition:.18s;border:1px solid transparent;}
.btn--solid{background:var(--ink);color:#fff;}
.btn--solid:hover{background:var(--signal);}
.btn--line{border-color:var(--ink);color:var(--ink);}
.btn--line:hover{background:var(--ink);color:#fff;}
.btn--signal{background:var(--signal);color:#fff;}
.btn--signal:hover{filter:brightness(.92);}
.btn .arw{font-family:var(--font-mono);font-size:13px;}

/* ---------- 히어로 ---------- */
.hero{position:relative;overflow:hidden;background:var(--paper);
  border-bottom:1px solid var(--concrete);}
.hero-inner{padding:104px 0 96px;position:relative;z-index:2;}
.hero h1{font-size:clamp(25px,5.2vw,58px);line-height:1.24;letter-spacing:-0.045em;
  max-width:22ch;margin-bottom:26px;}
.hero h1 em{font-style:normal;color:var(--signal);white-space:nowrap;}
.hero-lead{font-size:17.5px;color:var(--ink-2);max-width:56ch;margin-bottom:34px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- 전환(Shift) 3문장 ---------- */
.shift-list{display:grid;gap:1px;background:var(--concrete);
  border-top:1px solid var(--concrete);border-bottom:1px solid var(--concrete);}
.shift-item{background:var(--paper);padding:36px 30px;display:grid;
  grid-template-columns:70px 1fr;gap:20px;align-items:start;}
.shift-tag{font-family:var(--font-mono);font-size:11px;color:var(--ink-3);
  letter-spacing:.1em;padding-top:5px;}
.shift-item h3{font-size:20px;margin-bottom:8px;letter-spacing:-0.035em;}
.shift-item h3 s{text-decoration:line-through;text-decoration-thickness:1.5px;
  color:var(--ink-3);font-weight:400;}
.shift-item h3 span{color:var(--signal);}
.shift-item p{font-size:14.5px;color:var(--ink-2);margin:0;}

/* ---------- 카드 그리드 ---------- */
.grid{display:grid;gap:22px;}
.grid--3{grid-template-columns:repeat(3,1fr);}
.grid--2{grid-template-columns:repeat(2,1fr);}
.card{background:var(--surface);border:1px solid var(--concrete);
  border-radius:var(--radius);padding:34px 30px;transition:.2s;}
.card:hover{border-color:var(--ink-3);transform:translateY(-3px);}
.card .c-no{font-family:var(--font-mono);font-size:11px;color:var(--signal);
  letter-spacing:.14em;display:block;margin-bottom:16px;}
.card h3{font-size:19px;margin-bottom:12px;}
.card p{font-size:14.5px;color:var(--ink-2);margin:0;}
.card ul{margin-top:14px;}
.card li{font-size:14px;color:var(--ink-2);padding-left:13px;position:relative;
  line-height:1.7;}
.card li::before{content:"";position:absolute;left:0;top:11px;width:5px;height:1px;
  background:var(--signal);}
.section--dark .card{background:#22262b;border-color:#32373d;}
.section--dark .card p,.section--dark .card li{color:#a9b0b6;}

/* ---------- 사업분야 상세 ---------- */
.field{border-top:2px solid var(--ink);padding-top:34px;margin-bottom:88px;}
.field:last-child{margin-bottom:0;}
.field-head{display:grid;grid-template-columns:1fr 320px;gap:44px;align-items:start;
  margin-bottom:44px;}
.field-no{font-family:var(--font-mono);font-size:12px;letter-spacing:.16em;
  color:var(--signal);display:block;margin-bottom:12px;}
.field-head h2{font-size:clamp(23px,2.8vw,31px);margin-bottom:16px;}
.field-head p{font-size:16px;color:var(--ink-2);margin:0;}
.field-meta{background:var(--surface);border:1px solid var(--concrete);padding:22px 24px;}
.field-meta dt{font-family:var(--font-mono);font-size:10px;letter-spacing:.12em;
  text-transform:uppercase;color:var(--ink-3);margin-bottom:5px;}
.field-meta dd{margin:0 0 16px;font-size:14.5px;color:var(--ink);}
.field-meta dd:last-child{margin-bottom:0;}
.badge{display:inline-block;font-family:var(--font-mono);font-size:10.5px;letter-spacing:.1em;
  padding:4px 9px;border-radius:var(--radius);background:var(--signal-soft);
  color:var(--signal);border:1px solid #ffd4c0;}
.badge--live{background:#eaf5ee;color:#1c7a45;border-color:#c3e3d0;}
.chip{display:inline-block;font-size:13px;padding:5px 12px;border:1px solid var(--concrete);
  background:var(--surface);border-radius:20px;margin:0 6px 6px 0;color:var(--ink-2);}

/* 개발 프로세스 */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:0;margin:0 0 44px;
  border:1px solid var(--concrete);background:var(--surface);}
.step{padding:26px 20px;border-right:1px solid var(--concrete);}
.step:last-child{border-right:none;}
.step-n{font-family:var(--font-mono);font-size:11px;color:var(--signal);letter-spacing:.1em;}
.step h4{font-size:15.5px;margin:10px 0 8px;}
.step p{font-size:13.5px;color:var(--ink-2);margin:0;line-height:1.65;}

/* ---------- 홈 대표 사진 ---------- */
.feature-shot{margin:0 0 32px;border:1px solid var(--concrete);background:var(--surface);}
.feature-shot img{width:100%;aspect-ratio:16/8;object-fit:cover;}
.feature-shot figcaption{font-size:13.5px;color:var(--ink-2);padding:14px 18px;
  border-top:1px solid var(--concrete);}

/* ---------- 썸네일 한 줄 배치 ---------- */
.thumb-row{display:grid;grid-template-columns:repeat(var(--cols,4),1fr);gap:12px;
  margin:36px 0 0;align-items:stretch;}
.thumb{margin:0;background:var(--surface);border:1px solid var(--concrete);
  display:flex;flex-direction:column;transition:.18s;}
.thumb:hover{border-color:var(--ink-3);transform:translateY(-2px);}
.thumb img{width:100%;aspect-ratio:4/3;object-fit:cover;cursor:zoom-in;display:block;}
.thumb figcaption{font-size:13.5px;line-height:1.55;color:var(--ink);padding:12px 14px;
  border-top:1px solid var(--concrete);flex:1;}

/* ---------- 사진 슬라이드 ---------- */
.photo-slider{outline:none;}
.slider-stage{position:relative;overflow:hidden;background:#fbfbfa;
  border:1px solid var(--concrete);}
.slider-track{display:flex;transition:transform .45s cubic-bezier(.4,.05,.2,1);}
.slide{flex:0 0 100%;margin:0;min-width:100%;}
.slide-img{aspect-ratio:16/9;display:flex;align-items:center;justify-content:center;
  background:#fbfbfa;overflow:hidden;}
.slide-img img{width:100%;height:100%;object-fit:contain;cursor:zoom-in;}
.slide figcaption{font-size:13.5px;color:var(--ink-2);padding:13px 18px;
  border-top:1px solid var(--concrete);background:var(--surface);min-height:44px;}

.slider-arrow{position:absolute;top:calc(50% - 34px);transform:translateY(-50%);
  width:46px;height:46px;border:1px solid var(--concrete);background:rgba(255,255,255,.94);
  color:var(--ink);font-size:26px;line-height:1;cursor:pointer;border-radius:50%;
  display:flex;align-items:center;justify-content:center;padding:0 0 3px;transition:.16s;}
.slider-arrow:hover{background:var(--signal);border-color:var(--signal);color:#fff;}
.slider-arrow--prev{left:14px;}
.slider-arrow--next{right:14px;}

.slider-bar{display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:14px 2px 0;}
.slider-count{font-family:var(--font-mono);font-size:12px;color:var(--ink-3);
  letter-spacing:.1em;}
.slider-count b{color:var(--signal);font-weight:500;}
.slider-dots{display:flex;gap:8px;}
.dot{width:9px;height:9px;padding:0;border-radius:50%;border:1px solid var(--ink-3);
  background:transparent;cursor:pointer;transition:.16s;}
.dot:hover{border-color:var(--signal);}
.dot.is-active{background:var(--signal);border-color:var(--signal);}

.gallery-empty{border:1px dashed var(--ink-3);padding:44px 24px;text-align:center;
  color:var(--ink-3);font-size:14px;background:var(--surface);}

/* 라이트박스 */
.lightbox{position:fixed;inset:0;background:rgba(15,17,20,.94);display:none;
  align-items:center;justify-content:center;z-index:200;padding:36px;cursor:zoom-out;}
.lightbox.is-open{display:flex;}
.lightbox img{max-width:92vw;max-height:88vh;object-fit:contain;}
.lightbox-close{position:absolute;top:20px;right:26px;color:#fff;font-size:30px;
  background:none;border:none;cursor:pointer;line-height:1;}

/* ---------- 표 ---------- */
.table{width:100%;border-collapse:collapse;background:var(--surface);
  border:1px solid var(--concrete);font-size:14.5px;}
.table th,.table td{padding:15px 20px;border-bottom:1px solid var(--concrete);
  text-align:left;vertical-align:top;}
.table tr:last-child th,.table tr:last-child td{border-bottom:none;}
.table th{width:170px;font-weight:500;color:var(--ink-2);background:#fbfbfa;}

/* ---------- 실적 목록 ---------- */
.record{display:grid;grid-template-columns:120px 1fr;gap:24px;padding:26px 0;
  border-bottom:1px solid var(--concrete);}
.record:first-of-type{border-top:1px solid var(--concrete);}
.record-year{font-family:var(--font-mono);font-size:14px;color:var(--signal);
  letter-spacing:.04em;padding-top:3px;}
.record h3{font-size:17px;margin-bottom:7px;}
.record p{font-size:14.5px;color:var(--ink-2);margin:0;}
.record-org{font-family:var(--font-mono);font-size:12px;color:var(--ink-3);
  margin-top:8px;display:block;}

/* ---------- 연락처 ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start;}
.info-list li{padding:20px 0;border-bottom:1px solid var(--concrete);}
.info-list li:first-child{border-top:1px solid var(--concrete);}
.info-k{font-family:var(--font-mono);font-size:10.5px;letter-spacing:.13em;
  text-transform:uppercase;color:var(--ink-3);display:block;margin-bottom:6px;}
.info-v{font-size:16.5px;color:var(--ink);}
.info-v a:hover{color:var(--signal);}
.map-frame{width:100%;height:340px;border:1px solid var(--concrete);filter:grayscale(.25);}

.form-row{margin-bottom:18px;}
.form-row label{display:block;font-size:13px;font-weight:500;color:var(--ink-2);
  margin-bottom:7px;}
.form-row input,.form-row textarea,.form-row select{width:100%;padding:12px 14px;
  border:1px solid var(--concrete);background:var(--surface);border-radius:var(--radius);
  font-family:inherit;font-size:14.5px;color:var(--ink);}
.form-row input:focus,.form-row textarea:focus,.form-row select:focus{
  outline:2px solid var(--signal);outline-offset:1px;border-color:transparent;}
.form-row textarea{min-height:132px;resize:vertical;}
.form-note{font-size:12.5px;color:var(--ink-3);margin-top:12px;}

/* ---------- CTA 띠 ---------- */
.cta-band{background:var(--deep);color:#fff;padding:56px 0;
  border-top:3px solid var(--signal);}
.cta-band-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;
  flex-wrap:wrap;}
.cta-band h2{font-size:clamp(21px,2.6vw,28px);margin-bottom:8px;}
.cta-band p{color:#a9b0b6;font-size:15px;margin:0;}

/* ---------- 협력기관 ---------- */
.partners{display:flex;flex-wrap:wrap;gap:12px;}
.partner{background:var(--surface);border:1px solid var(--concrete);padding:16px 24px;
  font-size:15px;color:var(--ink-2);border-radius:var(--radius);}
.partner b{color:var(--ink);font-weight:500;}

/* ---------- 푸터 ---------- */
.site-foot{background:var(--deep);color:#8c9399;padding:58px 0 34px;font-size:13.5px;}
.foot-top{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;
  padding-bottom:34px;border-bottom:1px solid #2b3037;}
.site-foot .logo{color:#fff;}
.site-foot .logo-sub{color:#6f767c;}
.foot-h{font-family:var(--font-display);font-size:11px;letter-spacing:.15em;
  text-transform:uppercase;color:#6f767c;margin-bottom:14px;}
.site-foot li{line-height:2;}
.site-foot a:hover{color:#fff;}
.foot-bottom{padding-top:22px;display:flex;justify-content:space-between;gap:16px;
  flex-wrap:wrap;font-size:12.5px;color:#6f767c;}

/* ---------- 페이지 헤더 ---------- */
.page-head{background:var(--surface);border-bottom:1px solid var(--concrete);
  padding:62px 0 54px;}
.page-head h1{font-size:clamp(28px,4vw,42px);margin-bottom:14px;}
.page-head p{font-size:16.5px;color:var(--ink-2);max-width:60ch;margin:0;}
.crumb{font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;color:var(--ink-3);
  margin-bottom:18px;text-transform:uppercase;}

/* ---------- 스크롤 등장 ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .6s ease,transform .6s ease;}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- 반응형 ---------- */
@media (max-width:960px){
  .grid--3,.grid--2{grid-template-columns:1fr 1fr;}
  .field-head{grid-template-columns:1fr;gap:26px;}
  .steps{grid-template-columns:1fr 1fr;}
  .thumb-row{grid-template-columns:repeat(auto-fit,minmax(150px,1fr));}
  .step{border-bottom:1px solid var(--concrete);}
  .contact-grid{grid-template-columns:1fr;gap:40px;}
  .foot-top{grid-template-columns:1fr 1fr;}
}
@media (max-width:720px){
  .section{padding:64px 0;}
  .nav-toggle{display:block;}
  .nav{position:absolute;left:0;right:0;top:74px;background:var(--surface);
    border-bottom:1px solid var(--concrete);display:none;
    box-shadow:0 22px 44px rgba(15,17,20,.22);}
  .nav-open .nav{display:block;}
  .nav-open .site-head::before{content:"";position:fixed;inset:0;z-index:-1;
    background:rgba(15,17,20,.48);}
  .nav-list{flex-direction:column;align-items:stretch;gap:0;padding:6px 0 10px;}
  .nav-list a{padding:18px var(--pad);font-size:16px;line-height:1.4;
    border-bottom:1px solid var(--concrete);}
  .nav-list li:last-child a{border-bottom:none;}
  .nav-list a.is-current::after{display:none;}
  .nav-list a.is-current{color:var(--signal);}
  .grid--3,.grid--2,.steps{grid-template-columns:1fr;}
  .step{border-right:none;}
  .hero-inner{padding:68px 0 64px;}
  .record{grid-template-columns:1fr;gap:8px;}
  .foot-top{grid-template-columns:1fr;gap:28px;}
  .slider-arrow{width:38px;height:38px;font-size:22px;}
  .slider-arrow--prev{left:8px;}
  .slider-arrow--next{right:8px;}
  .slide-img{aspect-ratio:4/3;}
  .thumb-row{grid-template-columns:1fr 1fr;gap:10px;}
  .shift-item{grid-template-columns:1fr;gap:10px;}
}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

:focus-visible{outline:2px solid var(--signal);outline-offset:2px;}