/* 턴 아이앤씨 홈페이지 스타일 · 2026-09-22 */
@font-face{
  font-family:'Pretendard';
  src:url('../fonts/PretendardVariable.woff2') format('woff2-variations');
  font-weight:45 920; font-display:swap; font-style:normal;
}
:root{
  --bg:#000; --panel:#0e0e0e; --row:#1c1c1c; --line:#2a2a2a;
  --paper:#fff; --soft:#f1f1f1; --ink:#0a0a0a;
  --g1:rgba(255,255,255,.62); --g2:rgba(255,255,255,.36);
  --teal:#12789B; --teal-lt:#4FB2CF;
  --kr:'Pretendard',system-ui,sans-serif;
  --geo:'Urbanist','Pretendard',system-ui,sans-serif;
  --serif:'DM Serif Display','Pretendard',Georgia,serif;
  --it:'Arapey','DM Serif Display',Georgia,serif;
  --gut:clamp(20px,5vw,80px);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*{margin:0;padding:0;box-sizing:border-box}
html{background:#000}
html.lenis,html.lenis body{height:auto}
.lenis.lenis-smooth{scroll-behavior:auto!important}
body{font-family:var(--geo);background:#000;color:#fff;font-size:16px;line-height:1.7;-webkit-font-smoothing:antialiased;word-break:keep-all;overflow-x:clip}
a{color:inherit;text-decoration:none}
::selection{background:var(--teal);color:#fff}
.kr{font-family:var(--kr)}
.it{font-family:var(--it);font-style:italic;font-weight:400}
.serif{font-family:var(--serif);font-weight:400}
.wrap{max-width:1600px;margin:0 auto;padding:0 var(--gut)}
.light{background:var(--paper);color:var(--ink)}

/* ---------- 고정 UI ---------- */
.hd{position:fixed;inset:0 0 auto 0;z-index:90;display:flex;justify-content:space-between;align-items:center;padding:28px 64px;pointer-events:none}
.hd{transition:background .4s,padding .4s var(--ease),backdrop-filter .4s}
.hd.bg{padding-top:14px;padding-bottom:14px;background:rgba(0,0,0,.72);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);pointer-events:auto}
body.onlight .hd.bg{background:rgba(255,255,255,.82)}
.hd>*{pointer-events:auto}
.hd .logo{display:block;width:86px;color:#fff;mix-blend-mode:difference}
.hd .logo svg{display:block;width:100%;height:auto}
.hd .logo{width:104px}
.hnav{margin-left:auto;margin-right:28px;display:flex;gap:34px;font-family:var(--kr);font-size:16px;font-weight:600;color:#fff;transition:color .4s}
.hnav a{transition:opacity .2s}.hnav a:hover{opacity:.55}
body.onlight .hnav{color:#0a0a0a}
.pill{display:inline-flex;align-items:center;gap:8px;height:46px;padding:0 22px;border-radius:999px;border:1.5px solid #fff;background:transparent;color:#fff;font-family:var(--kr);font-size:14.5px;font-weight:700;transition:background .3s,color .3s,border-color .3s}
.pill:hover{background:#fff;color:#000}
body.onlight .pill{border-color:#0a0a0a;color:#0a0a0a}
body.onlight .pill:hover{background:#0a0a0a;color:#fff}
@media(max-width:900px){.hnav{display:none}.hd .logo{width:84px}.pill{margin-left:auto;height:44px;padding:0 16px;font-size:13.5px}}

.dots{position:fixed;right:34px;top:50%;transform:translateY(-50%);z-index:90;display:flex;flex-direction:column;align-items:flex-end;gap:14px;mix-blend-mode:difference;color:#fff}
.dots a{display:flex;align-items:center;gap:12px;height:14px}
.dots a i{display:block;width:16px;height:1.5px;background:currentColor;opacity:.4;transition:width .45s var(--ease),opacity .3s}
.dots a span{font-family:var(--geo);font-size:11.5px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;opacity:0;transform:translateX(6px);transition:opacity .35s,transform .45s var(--ease);white-space:nowrap}
.dots a:hover i{opacity:.8;width:24px}
.dots a:hover span{opacity:.7;transform:none}
.dots a.on i{width:40px;opacity:1}
.dots a.on span{opacity:1;transform:none}

.badge{position:fixed;right:40px;bottom:40px;z-index:90;width:104px;height:104px;display:grid;place-items:center;color:#fff;mix-blend-mode:difference}
.badge svg.ring{position:absolute;inset:0;width:100%;height:100%;animation:spin 14s linear infinite}
.badge svg.ring text{font-family:var(--geo);font-size:10.5px;letter-spacing:.14em;fill:currentColor;font-weight:500}
.badge svg.plane{width:28px;height:28px;transition:transform .4s var(--ease)}
.badge:hover svg.plane{transform:translate(3px,-3px)}
@keyframes spin{to{transform:rotate(360deg)}}

.cur{position:fixed;left:0;top:0;z-index:99;width:42px;height:42px;margin:-21px 0 0 -21px;border-radius:50%;border:1.5px solid #fff;mix-blend-mode:difference;pointer-events:none;transition:width .35s var(--ease),height .35s var(--ease),margin .35s var(--ease),background .35s}
.cur.big{width:74px;height:74px;margin:-37px 0 0 -37px;background:#fff}
.cur-dot{position:fixed;left:0;top:0;z-index:99;width:6px;height:6px;margin:-3px 0 0 -3px;border-radius:50%;background:#fff;mix-blend-mode:difference;pointer-events:none}
@media(pointer:coarse){.cur,.cur-dot{display:none}}
@media(max-width:820px){.dots{display:none}.badge{right:16px;bottom:16px;width:84px;height:84px}.hd{padding:20px}}

/* ---------- 01 히어로 ---------- */
.hero{height:100svh;display:grid;place-items:center;text-align:center;position:relative}
.hero h1{font-family:var(--serif);font-weight:400;font-size:clamp(58px,8.4vw,156px);line-height:1.02;letter-spacing:-.035em;white-space:nowrap}
.hero h1 span{display:block}
.hero h1 .b{color:#7a7a7a}
.hero h1 .thin{font-family:var(--it);font-style:italic;font-weight:400;opacity:.92}
.hero .sub{margin-top:26px;font-family:var(--it);font-style:italic;font-size:clamp(24px,2.4vw,40px);text-align:left;display:inline-block}
.hero .ko{margin-top:34px;font-family:var(--kr);font-size:17px;font-weight:500;color:#c4c4c4;letter-spacing:-.01em}
.hero .scroll{position:absolute;left:50%;bottom:40px;transform:translateX(-50%);font-size:12px;letter-spacing:.24em;color:#8a8a8a;text-transform:uppercase}
.hero .scroll:after{content:'';display:block;width:1px;height:44px;margin:12px auto 0;background:linear-gradient(#fff,transparent);animation:drip 2.2s var(--ease) infinite}
@keyframes drip{0%{transform:scaleY(0);transform-origin:top}50%{transform:scaleY(1);transform-origin:top}51%{transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}}
@media(max-width:700px){.hero h1{white-space:normal}}

/* ---------- 02 확장 사진 ---------- */
.expand{height:260vh;position:relative}
.expand .stage{position:sticky;top:0;height:100vh;overflow:hidden}
.expand .img{position:absolute;inset:0;background:url('../images/expand_seoul-night.jpg') center/cover;filter:grayscale(1);will-change:clip-path;clip-path:inset(20% 36% 20% 36% round 400px)}
.expand .img:after{content:'';position:absolute;inset:0;background:linear-gradient(to top,rgba(0,0,0,.75),rgba(0,0,0,.1) 55%)}
.expand .cap{position:absolute;left:var(--gut);bottom:clamp(48px,9vh,96px);opacity:0;transform:translateY(30px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.expand .cap.on{opacity:1;transform:none}
.tag{display:inline-flex;align-items:center;height:38px;padding:0 18px;border:1px solid rgba(255,255,255,.8);border-radius:999px;font-family:var(--serif);font-size:17px;margin-bottom:22px}
.expand .cap p{font-family:var(--kr);font-size:clamp(24px,2.5vw,42px);font-weight:600;line-height:1.35;letter-spacing:-.035em}

/* ---------- 03 회사 소개 (흰) ---------- */
.about{height:460vh;position:relative;background:#0b0b0b;color:#fff}
.about .stage{position:sticky;top:0;height:100vh;overflow:hidden}
.about .bg{position:absolute;inset:-4% 0;background:url('../images/about_bg-skyline.jpg') center/cover;filter:grayscale(1);will-change:transform}
.about .bg:after{content:'';position:absolute;inset:0;background:linear-gradient(rgba(10,10,10,.86),rgba(10,10,10,.72) 50%,rgba(10,10,10,.9))}
.about .huge{position:absolute;left:0;top:50%;transform:translateY(-50%);white-space:nowrap;font-family:var(--geo);font-weight:300;font-size:17vw;line-height:1;letter-spacing:-.02em;color:rgba(255,255,255,.07);will-change:transform;pointer-events:none}
.about .intro{position:absolute;inset:0;padding-top:70px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;will-change:transform,opacity}
.about .intro .lab{font-size:14px;font-weight:600;letter-spacing:.2em;color:var(--teal-lt)}
.about .intro h2{margin-top:22px;font-family:var(--kr);font-weight:600;font-size:clamp(40px,4.6vw,84px);line-height:1.2;letter-spacing:-.045em}
.about .intro p{margin-top:24px;font-family:var(--kr);font-size:clamp(15px,1.2vw,18px);line-height:1.8;color:rgba(255,255,255,.72);max-width:40em;padding:0 20px}
.about .intro i{position:absolute;left:50%;bottom:6vh;width:1px;height:12vh;background:linear-gradient(transparent,#fff)}
.about .step{position:absolute;inset:0;padding-top:70px;display:flex;flex-direction:column;align-items:center;justify-content:center;opacity:0;will-change:opacity,transform}
.about .cap{height:3.4em;display:flex;flex-direction:column;justify-content:flex-end;text-align:center;margin-bottom:22px}
.about .cap .n{font-family:var(--geo);font-size:13px;font-weight:600;letter-spacing:.18em;color:var(--teal-lt)}
.about .cap b{display:block;margin-top:6px;font-family:var(--kr);font-weight:600;font-size:clamp(17px,1.3vw,21px);letter-spacing:-.03em}
.about .abc{position:relative;height:min(48vh,480px);aspect-ratio:3/4.1;border-radius:22px;overflow:hidden;box-shadow:0 30px 80px rgba(0,0,0,.5)}
.about .abc i{position:absolute;inset:0;background-size:cover;background-position:center;filter:grayscale(1);clip-path:inset(100% 0 0 0);will-change:clip-path}
.about .abc i:first-child{clip-path:inset(0)}
.about .desc{height:3.6em;margin-top:24px;text-align:center;font-family:var(--kr);font-size:clamp(15px,1.15vw,17px);line-height:1.75;color:rgba(255,255,255,.82);padding:0 20px}
@media(min-width:761px){.about .desc,.about .intro p{white-space:nowrap}.about .intro p{max-width:none}}
@media(max-width:760px){.about .desc br,.about .intro p br{display:none}.about .desc{height:5.4em}}
.about .desc strong{color:#fff;font-weight:700}
.about .cnt{position:absolute;right:var(--gut);bottom:clamp(28px,5vh,48px);font-family:var(--geo);font-weight:600;font-size:15px;font-variant-numeric:tabular-nums;color:rgba(255,255,255,.7)}
.about .cnt u{display:inline-block;width:80px;height:2px;margin:0 12px 4px;background:rgba(255,255,255,.2);text-decoration:none;position:relative;overflow:hidden;vertical-align:middle}
.about .cnt u:after{content:'';position:absolute;inset:0;background:#fff;transform-origin:left;transform:scaleX(var(--pp,0))}
@media(max-width:760px){
  .about .huge{font-size:30vw}
  .about .abc{height:min(50vh,440px)}
  .about .intro h2{font-size:32px}
  .about .desc{font-size:14.5px}
  .about .cnt{display:none}
}

/* ---------- 04 AI-Driven ---------- */
.aid{height:220vh;position:relative}
.aid .stage{position:sticky;top:0;height:100vh;overflow:hidden;display:flex;align-items:center}
.aid .bg{position:absolute;inset:-6% 0;background:url('../images/ai_team-laptops.jpg') center/cover;filter:grayscale(1) contrast(1.1);will-change:transform}
.aid .bg:after{content:'';position:absolute;inset:0;background:linear-gradient(90deg,rgba(0,0,0,.82),rgba(0,0,0,.45) 60%,rgba(0,0,0,.7))}
.aid .inner{position:relative;width:100%;display:grid;grid-template-columns:1.2fr 1fr;gap:6vw;align-items:end;padding:0 var(--gut)}
.aid ul{list-style:none;font-size:15px;line-height:1.9;margin-bottom:clamp(60px,12vh,140px);color:var(--g1)}
.aid ul li:first-child{color:#fff;font-weight:600}
.aid h2{font-family:var(--serif);font-weight:400;font-size:clamp(64px,9.2vw,168px);line-height:.98;letter-spacing:-.02em}
.scrub{font-family:var(--kr);font-size:clamp(16px,1.3vw,20px);line-height:1.95;letter-spacing:-.02em;padding-bottom:1vh}
.scrub span{color:rgba(255,255,255,.2);transition:color .25s linear}
.scrub span.on{color:#fff}
@media(max-width:900px){.aid .inner{grid-template-columns:1fr;gap:28px}.aid ul{margin-bottom:20px}}

/* ---------- 05 흐르는 띠 ---------- */
.marq{padding:clamp(48px,8vh,90px) 0;overflow:hidden;border-top:1px solid #151515;border-bottom:1px solid #151515}
.marq .track{display:flex;width:max-content;animation:mq 38s linear infinite}
.marq .track span{display:flex;align-items:center;gap:36px;padding-right:36px;font-family:var(--geo);font-weight:500;font-size:clamp(40px,4.4vw,78px);letter-spacing:-.02em;white-space:nowrap}
.marq .orb{width:.72em;height:.72em;border-radius:50%;background:url('../images/marquee_city-lights.jpg') center/cover;filter:grayscale(1);box-shadow:inset 0 0 0 1px rgba(255,255,255,.2)}
.marq .track span em{font-style:italic;font-family:var(--it);color:var(--teal-lt)}
@keyframes mq{to{transform:translateX(-50%)}}

/* ---------- 06 Services 표 ---------- */
.svc{padding:clamp(110px,16vh,180px) 0 clamp(100px,14vh,160px)}
@media(min-width:901px){.svc{height:300vh;padding:0}.svc>.wrap{position:sticky;top:0;height:100vh;display:flex;flex-direction:column;justify-content:center;padding-top:70px}.svc .top{padding-bottom:36px}.pns{height:min(58vh,580px)}}
.svc .top{display:grid;grid-template-columns:1fr 1fr;gap:6vw;align-items:end;padding-bottom:clamp(50px,8vh,80px)}
.svc .lab{display:block;font-size:14px;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--g1);margin-bottom:22px}
.svc h2{line-height:1}
.svc h2 img{display:block;height:clamp(64px,7.2vw,128px);width:auto}
.svc .top p.b{font-family:var(--kr);font-weight:600;font-size:clamp(19px,1.5vw,24px);line-height:1.6;letter-spacing:-.025em}
.svc .top p.s{margin-top:16px;font-family:var(--kr);font-size:16.5px;line-height:1.85;color:rgba(255,255,255,.72)}
.pns{display:flex;gap:14px;height:clamp(460px,64vh,640px)}
.pn{position:relative;flex:1;min-width:0;border-radius:20px;overflow:hidden;cursor:pointer;transition:flex .8s var(--ease)}
.pn.on{flex:2.3}
.pn .ph{position:absolute;inset:0;background-size:cover;background-position:center;filter:grayscale(1);transform:scale(1.06);transition:transform 1.2s var(--ease)}
.pn.on .ph{transform:scale(1)}
.pn:after{content:'';position:absolute;inset:0;background:linear-gradient(to top,rgba(0,0,0,.92) 0%,rgba(0,0,0,.55) 45%,rgba(0,0,0,.25) 100%);transition:background .6s}
.pn .in{position:absolute;left:0;right:0;bottom:0;z-index:2;padding:clamp(24px,2.4vw,40px)}
.pn .no{position:absolute;top:clamp(22px,2vw,32px);left:clamp(24px,2.4vw,40px);z-index:2;font-size:14px;font-weight:600;letter-spacing:.1em;color:rgba(255,255,255,.8)}
.pn h3{font-family:var(--geo);font-weight:600;font-size:clamp(28px,2.4vw,44px);letter-spacing:-.03em;line-height:1.05;white-space:nowrap}
.pn .ko{display:block;margin-top:8px;font-family:var(--kr);font-size:16px;font-weight:600;color:rgba(255,255,255,.85)}
.pn ul{list-style:none;margin-top:22px;display:grid;grid-template-columns:1fr 1fr;gap:10px 24px;font-family:var(--kr);font-size:16px;font-weight:500;max-height:0;opacity:0;overflow:hidden;transition:max-height .7s var(--ease),opacity .5s,margin .5s}
.pn.on ul{max-height:200px;opacity:1}
.pn li{display:flex;gap:10px;align-items:center}
.pn li:before{content:'';width:6px;height:6px;border-radius:50%;background:#fff;flex:0 0 auto}
@media(max-width:900px){
  .svc .top{grid-template-columns:1fr;gap:26px}
  .pns{flex-direction:column;height:auto;gap:12px}
  .pn,.pn.on{flex:none;height:auto;min-height:340px;cursor:default}
  .pn .in{position:relative;padding:120px 22px 26px}
  .pn ul,.pn.on ul{max-height:none;opacity:1;grid-template-columns:1fr;margin-top:18px}
}

/* ---------- 07 기능 카드 쌓기 ---------- */
.feat{padding:clamp(40px,6vh,70px) 0 clamp(60px,8vh,100px);background:#111}
.feat .head{display:grid;grid-template-columns:1fr 1.1fr;gap:6vw;margin-bottom:clamp(60px,9vh,100px)}
.feat .head h2{font-family:var(--it);font-style:italic;font-weight:400;font-size:clamp(34px,3vw,52px);line-height:1.1}
.feat .head h2 b{display:block;font-family:var(--serif);font-style:normal;font-weight:400}
.feat .head p{font-family:var(--kr);font-size:16px;line-height:1.9;color:var(--g1)}
.stack{position:relative}
.card{position:sticky;top:0;height:100vh;padding:24px var(--gut) 24px}
.card .in{position:relative;height:100%;border-radius:22px;overflow:hidden;background:#000;display:flex;flex-direction:column;transform-origin:50% 0;will-change:transform,filter}
.card .ph{position:absolute;inset:0;background-size:cover;background-position:center;filter:grayscale(1)}
.card .ph:after{content:'';position:absolute;inset:0;background:rgba(0,0,0,.5)}
.card.lt .in{background:#e8e8e8;color:var(--ink)}
.card.lt .ph{opacity:.38;mix-blend-mode:multiply}
.card.lt .ph:after{display:none}
.card .word{position:relative;flex:1;display:grid;place-items:center;text-align:center;padding:0 4vw}
.card .word b{display:block;font-family:var(--geo);font-weight:700;font-size:clamp(90px,15vw,280px);line-height:.9;letter-spacing:-.05em}
.card .word i{display:block;font-family:var(--kr);font-style:normal;font-weight:600;font-size:clamp(18px,1.6vw,26px);letter-spacing:-.02em;margin-top:18px}
.card .meta{position:relative;display:grid;grid-template-columns:.7fr 2fr .7fr .4fr;gap:3vw;padding:24px 34px;border-top:1px solid rgba(255,255,255,.2);font-size:16px;font-weight:500;background:rgba(0,0,0,.72);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);color:#fff}
.card.lt .meta{border-top-color:rgba(0,0,0,.12);background:rgba(255,255,255,.88);color:#0a0a0a}
.card .meta small{display:block;font-size:12.5px;font-weight:600;opacity:.62;margin-bottom:6px;letter-spacing:.06em;text-transform:uppercase}
.card .meta span{font-family:var(--kr)}
@media(max-width:800px){.feat .head{grid-template-columns:1fr}.card .meta{grid-template-columns:1fr 1fr}}

/* ---------- 08 연혁 (흰) ---------- */
.comp{padding:clamp(120px,17vh,200px) 0}
.comp .g{display:grid;grid-template-columns:.8fr 1.4fr;gap:5vw;align-items:center}
.comp h2{font-family:var(--serif);font-weight:400;font-size:clamp(46px,4.4vw,78px);line-height:1.02;letter-spacing:-.015em}
.comp .lead{margin-top:30px;font-family:var(--kr);font-size:16px;line-height:1.9;color:#444;max-width:30em}
.panel{background:var(--soft);border-radius:18px;padding:clamp(28px,3vw,48px);display:grid;grid-template-columns:1fr 1fr;gap:0}
.panel>div{padding:28px 26px;border-bottom:1px solid #dcdcdc}
.panel>div:nth-child(odd){border-right:1px solid #dcdcdc}
.panel>div:nth-last-child(-n+2){border-bottom:0}
.panel .d{font-family:var(--geo);font-weight:600;font-size:13px;letter-spacing:.06em;color:var(--teal)}
.panel h4{margin-top:10px;font-family:var(--kr);font-weight:700;font-size:20px;letter-spacing:-.03em}
.panel p{margin-top:8px;font-family:var(--kr);font-size:14.5px;line-height:1.8;color:#555}
@media(max-width:900px){.comp .g{grid-template-columns:1fr}.panel{grid-template-columns:1fr}.panel>div{border-right:0!important;border-bottom:1px solid #dcdcdc!important}}

/* ---------- 09 How we build + 리본 ---------- */
.appr{padding:clamp(110px,16vh,180px) 0 0;overflow:hidden}
.appr .head{display:grid;grid-template-columns:1fr 1.1fr;gap:6vw;align-items:end;margin-bottom:clamp(50px,8vh,90px)}
.appr h2{font-family:var(--serif);font-weight:400;font-size:clamp(56px,5.6vw,100px);line-height:1;letter-spacing:-.02em}
.appr .head p{font-family:var(--kr);font-size:16px;line-height:1.9;color:var(--g1)}
.boxes{display:grid;grid-template-columns:repeat(6,1fr);border-left:1px solid #333}
.boxes article{border-right:1px solid #333;border-top:1px solid #333;border-bottom:1px solid #333;padding:26px 22px 30px;min-height:330px;display:flex;flex-direction:column;transition:background .4s}
.boxes article:hover{background:#111}
.boxes .n{font-family:var(--geo);font-size:13px;color:var(--g2)}
.boxes h3{margin-top:14px;font-family:var(--kr);font-weight:700;font-size:17px;letter-spacing:-.03em;line-height:1.45}
.boxes p{margin-top:12px;font-family:var(--kr);font-size:13.5px;line-height:1.8;color:var(--g1)}
.boxes .t{margin-top:auto;padding-top:18px;font-family:var(--geo);font-size:11px;letter-spacing:.16em;color:var(--teal-lt);font-weight:600}
@media(max-width:1200px){.boxes{grid-template-columns:repeat(3,1fr)}}
@media(max-width:700px){.appr .head{grid-template-columns:1fr}.boxes{grid-template-columns:1fr}.boxes article{min-height:0}}
.ribbons{position:relative;height:clamp(300px,40vh,440px);margin-top:clamp(40px,6vh,70px)}
.rb{position:absolute;left:-10%;width:120%;top:50%;height:58px;display:flex;align-items:center;overflow:hidden;white-space:nowrap}
.rb .t{display:flex;will-change:transform}
.rb span{font-family:var(--it);font-style:italic;font-size:22px;padding-right:12px}
.rb.a{background:#fff;color:#000;transform:translateY(-50%) rotate(-7deg)}
.rb.b{background:#000;color:#fff;border-top:1px solid #fff;border-bottom:1px solid #fff;transform:translateY(-50%) rotate(6deg)}

/* ---------- 10 Why TURN 원 ---------- */
.why{height:420vh;position:relative}
.why .stage{position:sticky;top:0;height:100vh;overflow:hidden}
.why .img{position:absolute;inset:0;background:none;clip-path:circle(24% at 50% 50%);will-change:clip-path}
.why .img:after{content:'';position:absolute;inset:0;background:rgba(0,0,0,.45)}
.why .ttl{position:absolute;inset:0;display:grid;place-items:center;text-align:center;will-change:transform,opacity}
.why .ttl h2{font-family:var(--it);font-style:italic;font-weight:400;font-size:clamp(70px,9vw,168px);line-height:.95}
.why .ttl h2 b{display:block;font-family:var(--serif);font-style:normal;font-weight:400}
.why .list{position:absolute;left:0;right:0;top:0;display:flex;flex-direction:column;align-items:center;gap:22vh;padding:0 var(--gut);text-align:center;will-change:transform}
.why .list div{max-width:520px}
.why .list .k{font-family:var(--geo);font-size:12px;letter-spacing:.22em;color:var(--teal-lt);font-weight:600}
.why .list h3{margin-top:10px;font-family:var(--serif);font-weight:400;font-size:clamp(34px,3vw,52px)}
.why .list p{margin-top:12px;font-family:var(--kr);font-size:16px;line-height:1.85;color:rgba(255,255,255,.8)}

/* ---------- 11 장(章) 카드 ---------- */
.chs{padding:clamp(40px,6vh,80px) 0}
.chs .card .in{background:#050505;border:1px solid #1d1d1d}
.chs .card .in:before{content:'';position:absolute;inset:0;background:radial-gradient(60% 50% at 50% 100%,rgba(18,120,155,.28),transparent 70%)}
.chs .body{position:relative;height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:5vh 5vw;gap:clamp(26px,4vh,44px)}
.chs h2{font-family:var(--geo);font-weight:700;font-size:clamp(40px,4.6vw,84px);line-height:1.02;letter-spacing:-.035em}
.chs h2 i{display:block;font-family:var(--it);font-weight:400;letter-spacing:0}
.chs .ko h3{font-family:var(--kr);font-weight:700;font-size:clamp(18px,1.5vw,24px);letter-spacing:-.03em}
.chs .ko p{margin-top:8px;font-family:var(--kr);font-size:15px;line-height:1.9;color:var(--g1)}
.stat{display:flex;gap:44px;justify-content:center;margin-bottom:18px}
.stat b{display:block;font-family:var(--geo);font-weight:600;font-size:40px;line-height:1}
.stat .on b{color:var(--teal-lt)}
.stat span{display:block;margin-top:6px;font-family:var(--kr);font-size:12.5px;color:var(--g2)}
.mgrid{display:grid;grid-template-columns:repeat(25,1fr);gap:4px;width:min(560px,80vw)}
.mgrid i{aspect-ratio:1;border-radius:2px;background:#222;transition:background .5s}
.mgrid i.me{background:var(--teal-lt);box-shadow:0 0 12px rgba(79,178,207,.7)}
.rg{display:grid;grid-template-columns:repeat(9,auto);gap:8px;justify-content:center}
.rg span{font-family:var(--kr);font-size:14px;font-weight:600;padding:9px 14px;border-radius:999px;border:1px solid #2c2c2c;color:#555;transition:all .4s}
.rg span.lit{border-color:var(--teal-lt);color:#fff;background:rgba(18,120,155,.25)}
.log{width:min(620px,86vw);font-family:var(--kr);font-size:14px;text-align:left}
.log div{display:grid;grid-template-columns:60px 1fr 1fr 60px;gap:12px;padding:10px 4px;border-bottom:1px solid #1f1f1f;opacity:.25;transition:opacity .5s}
.log div.lit{opacity:1}
.log .t{color:var(--teal-lt);font-family:var(--geo);font-weight:600}
.log .w{color:var(--g1)}
.log .h{color:var(--g2);text-align:right;font-family:var(--geo);font-size:12px}
@media(max-width:700px){.rg{grid-template-columns:repeat(4,auto)}.log div{grid-template-columns:50px 1fr 1fr}.log .h{display:none}}

/* ---------- 12 큰 글자 (흰) ---------- */
.great{padding:clamp(120px,18vh,220px) 0 clamp(100px,14vh,160px);overflow:hidden}
.great .lines{font-family:var(--geo);font-weight:800;font-size:clamp(64px,9.4vw,176px);line-height:.9;letter-spacing:-.045em;text-transform:uppercase;width:fit-content;margin:0 auto}
.great .lines div{will-change:transform;white-space:nowrap}
.great .lines .i1{padding-left:0}
.great .lines .i2{padding-left:.9em}
.great .lines .i3{padding-left:1.8em}
.great .lines em{font-style:normal;color:var(--teal)}
.great p{margin-top:56px;text-align:center;font-family:var(--kr);font-size:16px;line-height:1.9;color:#444}

/* ---------- 13 문의 ---------- */
.contact{padding:clamp(120px,16vh,180px) 0 clamp(80px,10vh,120px);position:relative;overflow:hidden}
.contact .g{display:grid;grid-template-columns:1fr 1fr;gap:6vw;align-items:center}
.contact h2{font-family:var(--kr);font-weight:700;font-size:clamp(32px,2.8vw,48px);line-height:1.35;letter-spacing:-.04em}
.contact .lead{margin-top:18px;font-family:var(--kr);font-size:15.5px;line-height:1.85;color:var(--g1)}
form{margin-top:40px;max-width:560px}
form label{display:block;border-bottom:1px solid #3a3a3a;padding:18px 0 10px}
form input,form textarea{width:100%;background:none;border:0;outline:0;color:#fff;font-family:var(--kr);font-size:15px;resize:vertical}
form input::placeholder,form textarea::placeholder{color:#8a8a8a}
form label:focus-within{border-color:#fff}
form button{margin-top:28px;display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 22px;border-radius:999px;border:1px solid #fff;background:none;color:#fff;font-family:var(--kr);font-size:14px;cursor:pointer;transition:background .3s,color .3s}
form button:hover{background:#fff;color:#000}
.blob{width:min(520px,80vw);aspect-ratio:1;margin-left:auto;background:url('../images/contact_team.jpg') center/cover;filter:grayscale(1) contrast(1.15);animation:morph 14s ease-in-out infinite;border-radius:42% 58% 63% 37% / 41% 44% 56% 59%}
@keyframes morph{
  0%,100%{border-radius:42% 58% 63% 37% / 41% 44% 56% 59%}
  33%{border-radius:58% 42% 38% 62% / 55% 38% 62% 45%}
  66%{border-radius:36% 64% 52% 48% / 62% 57% 43% 38%}
}
@media(max-width:900px){.contact .g{grid-template-columns:1fr}.blob{margin:0 auto}}

/* ---------- 푸터 ---------- */
.ft{border-top:1px solid #2a2a2a;overflow:hidden}
.ft .row{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;padding:28px 0;font-size:13.5px;color:#cfcfcf}
.ft .row a:last-child{justify-self:end}
.ft .info{font-family:var(--kr);font-size:12.5px;color:#777;padding-bottom:10px;line-height:2}
.ft .info span{white-space:nowrap}
.ft .info i{font-style:normal;margin:0 10px;color:#444}
.ft .giant{display:block;width:72%;margin-left:auto;margin-right:auto;color:#fff;margin-top:clamp(20px,4vh,40px);padding-bottom:clamp(40px,6vh,70px);-webkit-mask-image:linear-gradient(to bottom,#000 30%,rgba(0,0,0,.35) 100%);mask-image:linear-gradient(to bottom,#000 30%,rgba(0,0,0,.35) 100%)}
.ft .giant svg{display:block;width:100%;height:auto}
@media(max-width:700px){.ft .row{grid-template-columns:1fr;gap:8px}.ft .row a:last-child{justify-self:start}}

/* 등장 */
.rv{opacity:0;transform:translateY(40px);transition:opacity 1.1s var(--ease),transform 1.1s var(--ease)}
.rv.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.rv{opacity:1;transform:none}}

@media(max-width:760px){
  .badge{width:68px;height:68px;right:12px;bottom:12px}
  .badge svg.plane{width:20px;height:20px}
  .great .lines{font-size:14vw;margin:0 var(--gut)}
  .great .lines .i2{padding-left:.5em}
  .great .lines .i3{padding-left:1em}
  .great p{padding:0 var(--gut);font-size:15px}
  .card{padding:14px 14px}
  .card .meta{grid-template-columns:1fr;gap:6px;padding:16px 18px 20px}
  .card .meta>div:nth-child(1),.card .meta>div:nth-child(3),.card .meta>div:nth-child(4){display:none}
  .card .word b{font-size:22vw}
  form button{height:50px;padding:0 26px;font-size:15px}
  form label{padding:20px 0 12px}
}

/* 두 줄 큰 글자 */
.kin{padding:clamp(70px,11vh,130px) 0 clamp(20px,4vh,40px);overflow:hidden}
.kin .row{white-space:nowrap}
.kin .t{display:inline-flex;will-change:transform}
.kin span{display:inline-flex;align-items:center;gap:.32em;padding-right:.32em;font-family:var(--geo);font-weight:700;font-size:clamp(54px,7.6vw,140px);line-height:1.08;letter-spacing:-.035em;text-transform:uppercase}
.kin .a span{color:#fff}
.kin .b span{color:transparent;-webkit-text-stroke:1.4px rgba(255,255,255,.6)}
.kin span i{width:.2em;height:.2em;border-radius:50%;background:var(--teal-lt);flex:0 0 auto}
/* Why TURN: 왼쪽 고정 사진 + 오른쪽 목록 */
.why2{padding:clamp(110px,16vh,180px) 0}
.why2 .g{display:grid;grid-template-columns:.9fr 1.1fr;gap:6vw;align-items:start}
.why2 .stick{position:sticky;top:12vh;height:76vh;border-radius:20px;overflow:hidden}
.why2 .ph{position:absolute;inset:0;background:url('../images/why_skyscrapers.jpg') center/cover;filter:grayscale(1);will-change:transform}
.why2 .stick:after{content:'';position:absolute;inset:0;background:linear-gradient(to top,rgba(0,0,0,.85),rgba(0,0,0,.15) 60%)}
.why2 .cap{position:absolute;left:34px;right:34px;bottom:32px;z-index:2}
.why2 .lab{font-size:14px;font-weight:600;letter-spacing:.18em;color:var(--teal-lt)}
.why2 h2{margin-top:12px;font-family:var(--kr);font-weight:700;font-size:clamp(32px,2.8vw,50px);line-height:1.2;letter-spacing:-.04em}
.why2 .cnt{position:absolute;top:28px;right:32px;z-index:2;font-family:var(--geo);font-weight:600;font-size:18px;font-variant-numeric:tabular-nums}
.why2 .wi{min-height:64vh;display:flex;flex-direction:column;justify-content:center;border-top:1px solid #2a2a2a;opacity:.25;transition:opacity .6s var(--ease)}
.why2 .wi:last-child{border-bottom:1px solid #2a2a2a}
.why2 .wi.on{opacity:1}
.why2 .wi .k{font-family:var(--geo);font-size:14px;font-weight:600;letter-spacing:.12em;color:var(--teal-lt)}
.why2 .wi strong{display:block;margin-top:10px;font-family:var(--geo);font-weight:700;font-size:clamp(56px,6.2vw,116px);line-height:1;letter-spacing:-.04em;text-transform:uppercase}
.why2 .wi h3{margin-top:20px;font-family:var(--kr);font-weight:700;font-size:clamp(24px,2vw,32px);letter-spacing:-.03em}
.why2 .wi p{margin-top:10px;font-family:var(--kr);font-size:17px;line-height:1.8;color:rgba(255,255,255,.75)}
@media(max-width:900px){
  .why2 .g{grid-template-columns:1fr;gap:20px}
  .why2 .stick{position:relative;top:0;height:56vh}
  .why2 .wi{min-height:0;padding:44px 0;opacity:1}
  .why2 .wi strong{font-size:15vw}
  .why2 .wi p{font-size:15.5px}
  .kin span{font-size:15vw}
}

/* Company · How We Build 고정 */
@media(min-width:901px){
  .comp{height:260vh;padding:0}
  .comp>.wrap{position:sticky;top:0;height:100vh;align-content:center;padding-top:70px}
  .panel>div{opacity:.3;transition:opacity .6s var(--ease)}
  .panel>div.on{opacity:1}
  .appr{height:360vh;padding:0;overflow:visible}
  .appr>.wrap{position:sticky;top:0;height:100vh;display:flex;flex-direction:column;justify-content:center;padding-top:70px}
  .boxes article.rv.in{opacity:.3;transition:opacity .6s var(--ease),background .6s}
  .boxes article.rv.in.on{opacity:1;background:#141414}
}

/* 히어로 영상 */
.hero{overflow:hidden}
.hero .hv{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;filter:grayscale(1) brightness(.62) contrast(1.05);z-index:0}
.hero:after{content:'';position:absolute;inset:0;z-index:0;background:radial-gradient(70% 60% at 50% 50%,rgba(0,0,0,.35),rgba(0,0,0,.7)),linear-gradient(to bottom,rgba(0,0,0,.5),transparent 25%,transparent 70%,#000)}
.hero .hc,.hero .scroll{position:relative;z-index:1}
.hero .scroll{position:absolute}

.fmsg{margin-top:18px;min-height:1.5em;font-family:var(--kr);font-size:15px;font-weight:500;color:var(--teal-lt)}
.fmsg.err{color:#ff8a8a}
.fmsg a{color:#fff;text-decoration:underline}
form button[disabled]{opacity:.5;cursor:default}
form.done label,form.done button{display:none}

/* Company & Milestones 항목 호버 */
.panel>div{position:relative;border-radius:12px;transition:opacity .5s var(--ease),background .4s var(--ease),transform .5s var(--ease),box-shadow .5s var(--ease)}
.panel>div:before{content:'';position:absolute;left:0;top:28px;width:3px;height:0;background:var(--teal);border-radius:2px;transition:height .45s var(--ease)}
@media(hover:hover){
  .panel:hover>div{opacity:.3}
  .panel>div:hover{opacity:1!important;background:#fff;transform:translateY(-4px);box-shadow:0 18px 40px rgba(0,0,0,.08)}
  .panel>div:hover:before{height:34px}
  .panel>div:hover h4{color:#0a0a0a}
}

/* How We Build 박스 호버 */
.boxes article{position:relative;transition:opacity .5s var(--ease),background .4s var(--ease),transform .5s var(--ease)}
.boxes article:after{content:'';position:absolute;left:0;right:0;top:-1px;height:2px;background:var(--teal-lt);transform:scaleX(0);transform-origin:left;transition:transform .5s var(--ease)}
@media(hover:hover){
  .boxes:hover article.rv.in,.boxes:hover article.rv.in.on{opacity:.3;background:transparent}
  .boxes article.rv.in:hover,.boxes:hover article.rv.in.on:hover{opacity:1;background:#161616;transform:translateY(-6px)}
  .boxes article:hover:after{transform:scaleX(1)}
  .boxes article:hover h3{color:#fff}
}

/* TOP 버튼 */
.totop{position:fixed;right:28px;bottom:28px;z-index:90;width:60px;height:60px;border-radius:50%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;background:rgba(20,20,20,.72);border:1px solid rgba(255,255,255,.18);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);color:#fff;opacity:0;transform:translateY(16px);pointer-events:none;transition:opacity .4s var(--ease),transform .4s var(--ease),background .3s,color .3s,border-color .3s}
.totop.show{opacity:1;transform:none;pointer-events:auto}
.totop svg{width:14px;height:14px;transition:transform .35s var(--ease)}
.totop span{font-family:var(--geo);font-size:10.5px;font-weight:700;letter-spacing:.14em}
.totop:hover{background:#fff;color:#000;border-color:#fff}
.totop:hover svg{transform:translateY(-3px)}
body.onlight .totop{background:rgba(255,255,255,.85);color:#0a0a0a;border-color:rgba(0,0,0,.12)}
body.onlight .totop:hover{background:#0a0a0a;color:#fff}
@media(max-width:760px){.totop{width:52px;height:52px;right:16px;bottom:16px}}

/* 모바일 메뉴 */
.mb{display:none}
.mmenu{display:none}
@media(max-width:900px){
  .mb{display:grid;place-items:center;position:relative;width:48px;height:48px;margin-left:8px;margin-right:-10px;background:none;border:0;cursor:pointer;color:#fff;order:3}
  body.onlight .mb{color:#0a0a0a}
  .mb i{position:absolute;left:12px;right:12px;height:2px;background:currentColor;transition:transform .4s var(--ease),top .4s var(--ease)}
  .mb i:first-child{top:19px}.mb i:last-child{top:27px}
  body.menu .mb{color:#fff}
  body.menu .mb i{top:23px}
  body.menu .mb i:first-child{transform:rotate(45deg)}
  body.menu .mb i:last-child{transform:rotate(-45deg)}
  .mmenu{display:flex;flex-direction:column;justify-content:center;position:fixed;inset:0;z-index:85;background:#0a0a0a;padding:0 24px;clip-path:inset(0 0 100% 0);visibility:hidden;transition:clip-path .6s var(--ease),visibility 0s .6s}
  body.menu .mmenu{clip-path:inset(0);visibility:visible;transition:clip-path .6s var(--ease)}
  .mmenu nav{display:flex;flex-direction:column;gap:8px}
  .mmenu nav a{font-family:var(--kr);font-weight:700;font-size:38px;letter-spacing:-.04em;color:#fff;padding:6px 0}
  .mmenu p{margin-top:48px;font-family:var(--kr);font-size:14px;line-height:1.9;color:rgba(255,255,255,.6)}
  body.menu .hd .logo,body.menu .pill{color:#fff;border-color:#fff}
  .blob{width:70vw}
}

/* 줄바꿈 다듬기 */
p,h2,h3,h4,li,.desc,.lead{text-wrap:pretty}
.about .intro p,.about .desc,.about .cap b,.great p,.chs .ko p,.chs .ko h3,.expand .cap p{text-wrap:balance}
@media(max-width:760px){
  .ft .info i{display:none}
  .ft .info span{display:block;white-space:normal}
  .why2 .wi p,.boxes p,.panel p,.pn .ko{text-wrap:pretty}
}