:root{
    --bg:#FFFFFF;
    --fg:#111111;
    --gray:#6E6E6E;
    --gray-soft:#8C8C8C;
    --line:rgba(17,17,17,.13);
    --line-strong:rgba(17,17,17,.28);
    --pad:4vw;
  }
  *{margin:0;padding:0;box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{
    font-family:'Instrument Sans',-apple-system,'Pretendard','Apple SD Gothic Neo',sans-serif;
    background:var(--bg);color:var(--fg);overflow-x:hidden;
  }
  ::selection{background:var(--fg);color:var(--bg)}
  a{color:inherit;text-decoration:none}
  img,video{display:block;width:100%;height:auto}
  a:focus-visible,button:focus-visible{outline:2px solid var(--fg);outline-offset:4px}
  .mono{font-family:'IBM Plex Mono',monospace}

  .inner{max-width:1440px;margin:0 auto;padding:0 var(--pad)}
  .bleed{width:100vw;margin-left:calc(50% - 50vw)}

  /* ---------- hero ---------- */
  .herovid{position:relative;width:100%;height:84svh;min-height:420px;overflow:hidden;background:#EDEDED}
  .herovid video,.herovid .vph{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
  .herovid .vph{
    display:flex;align-items:center;justify-content:center;text-align:center;
    font-family:'IBM Plex Mono';font-size:11px;letter-spacing:.18em;
    text-transform:uppercase;color:var(--gray);line-height:2.2;
  }
  .scrollcue{
    position:absolute;bottom:20px;left:50%;transform:translateX(-50%);
    font-family:'IBM Plex Mono';font-size:10px;letter-spacing:.24em;
    text-transform:uppercase;color:#fff;mix-blend-mode:difference;
  }

  /* ---------- hero reveal : 스크롤에 따라 영상이 확대되는 리빌 ---------- */
  .heroreveal{position:relative;height:165vh}
  .heroreveal .pin{
    position:sticky;top:0;height:100svh;
    display:flex;align-items:center;justify-content:center;overflow:hidden;
  }
  .heroreveal .vidbox{
    position:relative;width:80.5573vw;aspect-ratio:16/9;max-height:100svh;
    overflow:hidden;background:#EDEDED;border-radius:7px;
    will-change:width;
  }
  .heroreveal .vidbox video,.heroreveal .vidbox .vph{
    position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  }
  .heroreveal .vph{
    display:flex;align-items:center;justify-content:center;text-align:center;
    font-family:'IBM Plex Mono';font-size:11px;letter-spacing:.16em;
    text-transform:uppercase;color:var(--gray);line-height:2.1;
  }
  .heroreveal .hint{
    position:absolute;bottom:32px;left:50%;transform:translateX(-50%);
    font-size:10px;letter-spacing:.24em;text-transform:uppercase;color:var(--gray-soft);
    transition:opacity .3s;
  }
  @media(prefers-reduced-motion:reduce){
    .heroreveal{height:84svh}
    .heroreveal .pin{position:relative;height:84svh}
    .heroreveal .vidbox{width:100vw;max-width:none;border-radius:0}
  }
  @media(max-width:600px){
    .heroreveal{height:180vh}
    .heroreveal .vidbox{width:90vw;border-radius:10px}
  }

  /* ---------- intro : 초대형 타이포 (중앙정렬) ---------- */
  .intro{padding:clamp(96px,19vw,300px) 0 clamp(44px,5.5vw,86px);text-align:center}
  .eyebrow{font-family:'IBM Plex Mono';font-size:12px;letter-spacing:.26em;text-transform:uppercase;color:var(--gray);margin-bottom:18px}
  .intro h1{
    font-weight:700;letter-spacing:-.05em;
    font-size:clamp(62px,17vw,258px);line-height:.8;
  }
  .intro .lede{
    margin:26px auto 0;max-width:36ch;
    font-style:normal;font-weight:500;font-size:clamp(18px,2vw,30px);
    line-height:1.4;color:var(--gray);text-align:center;
  }
  .intro .lede em{font-style:normal;color:var(--fg)}
  /* Word stagger reveal — lede */
  .lede-line{display:block}
  .lede{opacity:0}
  .lede .word{opacity:0}
  /* Blur+scale reveal — intro h1 */
  .intro h1 .ch{display:inline-block;opacity:0;filter:blur(14px);transform:scale(1.24)}
  @media(prefers-reduced-motion:reduce){
    .lede{opacity:1}
    .lede .word{opacity:1}
    .intro h1 .ch{opacity:1;filter:none;transform:none}
  }

  .ctx-grid{
    display:flex;flex-direction:column;align-items:center;text-align:center;
    gap:clamp(40px,5.5vw,64px);
    margin-top:clamp(44px,5vw,80px);
    padding-top:clamp(30px,3.6vw,54px);
  }
  .ctx-left{display:flex;flex-direction:column;align-items:center;gap:22px;max-width:640px;margin:0 auto}
  .ctx-lead{font-size:clamp(17px,1.85vw,25px);font-weight:600;line-height:1.5;letter-spacing:-.015em;max-width:36ch}
  .ctx-lead i{font-style:normal;font-weight:500;color:var(--gray)}
  .ctx-lead .line{display:block}
  dl.meta{
    display:flex;flex-wrap:wrap;justify-content:center;
    gap:0;width:auto;margin:0 auto;text-align:center;
    border-top:1px solid var(--line);
  }
  .meta-item{
    display:flex;flex-direction:column;align-items:center;gap:6px;
    padding:24px clamp(20px,3.4vw,40px) 0;border-left:1px solid var(--line);
  }
  .meta-item:first-child{border-left:none;padding-left:0}
  .meta-item:last-child{padding-right:0}
  dl.meta dt{font-family:'IBM Plex Mono';font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--gray)}
  dl.meta dd{font-size:14px;font-weight:600;line-height:1.6}
  dl.meta dd .ar{color:var(--gray);padding:0 7px}
  dl.meta dd .yr{font-style:normal;font-weight:500;color:var(--gray);margin-left:8px}
  .scope{display:flex;flex-wrap:wrap;gap:7px;justify-content:center}
  .ctx-left .scope{margin-top:2px}
  .scope a{
    font-family:'IBM Plex Mono';font-size:11px;letter-spacing:.06em;
    padding:7px 13px;border:1px solid var(--line);border-radius:100px;color:var(--gray);
    transition:color .25s,border-color .25s;
  }
  .scope a:hover{color:var(--fg);border-color:var(--line-strong)}

  /* ---------- 공통 섹션 ---------- */
  .sec{padding:clamp(56px,7vw,124px) 0}
  .sec-title{font-weight:700;letter-spacing:-.04em;line-height:.94}
  .sec-title small{
    display:block;margin-top:14px;font-style:normal;font-weight:500;
    font-size:clamp(15px,1.35vw,20px);letter-spacing:-.01em;color:var(--gray);
  }
  .sec-desc{font-size:14.5px;line-height:1.8;color:var(--gray)}
  .sec-desc b{color:var(--fg);font-weight:600}
  .tool{
    margin-top:20px;
    font-family:'IBM Plex Mono';font-size:11px;letter-spacing:.13em;
    text-transform:uppercase;color:var(--gray-soft);line-height:2;
  }

  /* stack형: 타이틀 초대형, 미디어 풀블리드 */
  .sec--stack .sec-title{font-size:7vw}
  .sec--stack .head{
    display:grid;grid-template-columns:1fr minmax(0,300px);
    gap:clamp(20px,4vw,64px);align-items:end;
    margin-bottom:clamp(28px,3.6vw,56px);
    padding-top:30px;
  }

  /* split형: sticky 사이드 + 미디어 */
  .split{display:grid;grid-template-columns:minmax(0,330px) minmax(0,1fr);gap:clamp(24px,5vw,84px)}
  .split .side{position:sticky;top:clamp(88px,15vh,140px);align-self:start}
  .split .side .sec-title{font-size:clamp(32px,4.4vw,68px)}
  .split .side .sec-desc{margin-top:20px;max-width:34ch}
  .sec--right .split{grid-template-columns:minmax(0,1fr) minmax(0,330px)}
  .sec--right .split .side{order:2}
  .sec--right .split .media{order:1}

  /* ---------- 미디어 ---------- */
  figure{overflow:hidden}
  figcaption{margin-top:10px;font-family:'IBM Plex Mono';font-size:11px;letter-spacing:.05em;color:var(--gray-soft)}
  .reel-link{display:block}
  .ph{
    display:flex;align-items:center;justify-content:center;text-align:center;padding:18px;
    background:#F4F4F4;border:1px solid var(--line);
    font-family:'IBM Plex Mono';font-size:10px;letter-spacing:.14em;
    text-transform:uppercase;color:var(--gray);line-height:1.9;
  }
  .r-16-9 .ph{aspect-ratio:16/9}
  .r-9-16 .ph{aspect-ratio:9/16}
  .media{display:grid;gap:clamp(12px,1.6vw,22px)}

  /* 01-1 — AI Model 이미지: 세로 스크롤 연동 가로 갤러리 (6컷) */
  .ai-gallery{position:relative;height:360vh}
  .ai-gallery-pin{position:sticky;top:0;height:100svh;overflow:hidden}
  .ai-gallery-track{
    position:absolute;top:50%;left:0;transform:translateY(-50%);
    display:flex;align-items:flex-start;gap:clamp(16px,2vw,32px);
    padding:0 var(--pad);will-change:transform;
  }
  .ai-cell{flex:0 0 clamp(280px,36vw,540px)}

  /* ---------- 타이포 모먼트 : 가로 스크롤 텍스트 (ref: demos.gsap.com/demo/horizontal-text) ---------- */
  .hscroll-stat{position:relative;overflow:hidden;height:56vh;display:flex;align-items:center;background:var(--bg)}
  .hscroll-text{
    display:inline-block;white-space:nowrap;will-change:transform;
    font-weight:700;letter-spacing:-.03em;line-height:1.05;
    font-size:clamp(48px,9vw,150px);
  }
  @media(prefers-reduced-motion:reduce){
    .hscroll-stat{height:auto;padding:clamp(56px,8vw,120px) var(--pad)}
    .hscroll-text{white-space:normal;font-size:clamp(28px,5vw,56px);padding-left:0}
  }

  /* Detail — 헤더 압축, 미디어 우선 */
  #detail .sec-title{font-size:clamp(24px,3.1vw,46px)}

  /* Instagram — 스낵 구간으로 압축 */
  #instagram.sec{padding:clamp(40px,5vw,84px) 0}
  #instagram .sec-title{font-size:clamp(22px,2.7vw,42px)}
  #instagram .side{position:static}
  #production .sec-title{font-size:clamp(24px,3.1vw,46px)}

  .ai-cell-media{position:relative}
  .ai-cell .ph{aspect-ratio:1/1}
  .ai-cap{
    margin-top:12px;font-family:'IBM Plex Mono';font-size:11px;
    letter-spacing:.09em;text-transform:uppercase;color:var(--gray-soft);
  }
  .ai-cap-hover{
    position:absolute;inset:0;display:flex;align-items:flex-end;padding:18px;
    background:linear-gradient(to top,rgba(17,17,17,.82),rgba(17,17,17,0) 58%);
    opacity:0;transition:opacity .3s;pointer-events:none;
  }
  .ai-cell:hover .ai-cap-hover{opacity:1}
  .ai-cap-hover p{color:#fff;font-size:12px;line-height:1.55;font-family:'IBM Plex Mono';letter-spacing:.01em}

  /* 01-2 — 하단 눈금 룰러 (스크롤 진행률 연동 마커) */
  .ai-ruler{position:absolute;left:0;right:0;bottom:clamp(26px,4vw,46px);padding:0 var(--pad)}
  .ai-ruler-ticks{
    position:relative;height:22px;
    background-image:repeating-linear-gradient(
      to right,var(--line-strong) 0,var(--line-strong) 1px,
      transparent 1px,transparent calc(100% / 60)
    );
  }
  .ai-ruler-marker{
    position:absolute;top:-6px;bottom:-6px;left:0;width:1px;background:var(--fg);
    transition:left .05s linear;
  }
  .ai-ruler-zones{
    display:flex;margin-top:10px;font-family:'IBM Plex Mono';
    font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--gray-soft);
  }
  .ai-ruler-zones span:first-child{flex:0 0 50%}
  .ai-ruler-zones span:last-child{flex:1}
  @media(max-width:900px){
    .ai-gallery{height:auto}
    .ai-gallery-pin{position:static;height:auto;overflow:visible}
    .ai-gallery-track{position:static;transform:none;display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(10px,1.3vw,18px);padding:0}
    .ai-ruler{display:none}
  }
  @media(max-width:600px){
    .ai-gallery-track{grid-template-columns:repeat(2,1fr)}
  }
  @media(prefers-reduced-motion:reduce){
    .ai-gallery{height:auto}
    .ai-gallery-pin{position:static;height:auto;overflow:visible}
    .ai-gallery-track{position:static;transform:none!important;display:grid;grid-template-columns:repeat(3,1fr);gap:18px;padding:0}
    .ai-ruler{display:none}
  }

  /* 01 — 영상 밴드 (지우려면 .filmband 규칙만 삭제) */
  .filmband{padding:clamp(26px,4vw,70px) var(--pad)}
  .filmband figcaption{color:var(--gray);max-width:1440px;margin-left:auto;margin-right:auto}
  .filmband .fit{max-width:1440px;margin:0 auto}

  /* 02 — 세로로 긴 상세페이지 */
  .longframe{border:1px solid var(--line);max-height:82svh;overflow-y:hidden;scrollbar-width:thin;background:#F4F4F4;max-width:560px;cursor:pointer;position:relative}
  .longframe.manual{overflow-y:auto;cursor:auto}
  .longframe img{display:block;width:100%;height:auto}
  .longframe::-webkit-scrollbar{width:3px}
  .longframe::-webkit-scrollbar-thumb{background:var(--line-strong)}
  .longframe .ph{border:none;min-height:1600px}
  .longframe-pan{will-change:transform}
  .hint{margin-top:12px;font-family:'IBM Plex Mono';font-size:11px;letter-spacing:.06em;color:var(--gray-soft)}

  /* 02-1 — Detail 탭 전환 */
  .detail-tabs{margin-top:26px;border-top:1px solid var(--line)}
  .detail-tabs button{
    all:unset;display:block;width:100%;box-sizing:border-box;cursor:pointer;
    padding:15px 0;border-bottom:1px solid var(--line);
    font-size:14.5px;font-weight:600;line-height:1.4;letter-spacing:-.01em;color:var(--gray);
    transition:color .25s,padding-left .25s;
  }
  .detail-tabs button .idx{display:inline-block;width:22px;font-size:11px;letter-spacing:.1em;color:var(--gray-soft);transition:color .25s}
  .detail-tabs button:hover{color:var(--fg)}
  .detail-tabs button.active{color:var(--fg);padding-left:6px}
  .detail-tabs button.active .idx{color:var(--fg)}
  .longframe .ph{transition:opacity .25s ease}
  .longframe.swap .ph{opacity:0}

  /* 04-1 — Instagram 운영 지표 */
  .instastats{display:flex;flex-wrap:wrap;column-gap:clamp(32px,4.4vw,64px);row-gap:28px}
  .instastats div{min-width:108px}
  .instastats b{display:block;font-family:'IBM Plex Mono';font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--gray-soft);margin-bottom:10px}
  .instastats span{display:block;font-size:15px;font-weight:600;color:var(--fg);line-height:1.5}
  @media(max-width:600px){.instastats{column-gap:28px;row-gap:22px}}

  /* 03 — 릴스 엇갈림 (Video 캐러셀 01 BRAND 슬라이드에서 재사용) */
  .stagger{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(12px,1.8vw,26px);align-items:start}
  .stagger figure:nth-child(2){margin-top:16%}
  .stagger figure:nth-child(3){margin-top:7%}

  /* 03-1 — Video 캐러셀 : 포폴 메인 릴스 섹션 레이아웃 */
  .vc{overflow:hidden;cursor:grab}
  .vc.dragging{cursor:grabbing}
  .vc-track{display:flex;gap:clamp(24px,4vw,64px)}
  .vc-slide{
    flex:0 0 100%;display:grid;
    grid-template-columns:minmax(0,.75fr) minmax(0,1.7fr);
    gap:clamp(28px,5vw,90px);align-items:center;
  }
  .vc-head{font-weight:700;letter-spacing:-.045em;line-height:1.02;font-size:clamp(34px,5.4vw,78px)}
  .vc-head span{color:var(--gray)}
  .vc-meta{
    margin-top:clamp(20px,2.4vw,34px);
    font-family:'IBM Plex Mono';font-size:11.5px;letter-spacing:.13em;
    text-transform:uppercase;color:var(--gray-soft);line-height:2.1;
  }
  .vc-meta b{display:block;color:var(--gray);font-weight:400;text-transform:none;letter-spacing:.04em}
  .vc-nav{display:flex;align-items:center;justify-content:center;margin-top:clamp(30px,3.8vw,52px)}
  .vc-dots{display:flex;gap:8px}
  .vc-dot{width:6px;height:6px;border-radius:50%;background:var(--line-strong);cursor:pointer;transition:background .25s}
  .vc-dot.active{background:var(--fg)}
  @media(max-width:1000px){
    .vc-slide{grid-template-columns:1fr;gap:30px}
  }

  /* 04-2 — Instagram 무한 카드 슬라이더 */
  .ig-slider{overflow:hidden;cursor:grab}
  .ig-slider.dragging{cursor:grabbing}
  .ig-track{display:flex;align-items:flex-end;gap:clamp(10px,1.2vw,18px);width:max-content;padding:0 var(--pad)}
  .ig-item{flex:0 0 clamp(180px,22vw,300px);aspect-ratio:4/5;will-change:transform;transform-origin:center bottom}
  .ig-item .ph{width:100%;height:100%}

  /* 05-1 — Production FLIP 갤러리 + 모달 */
  .pgal{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line)}
  .pgal-item{all:unset;cursor:pointer;display:block;aspect-ratio:4/5}
  .pgal-item .ph{width:100%;height:100%;transition:opacity .25s}
  .pgal-item:hover .ph{opacity:.78}
  .gal-modal{
    position:fixed;inset:0;z-index:80;background:rgba(255,255,255,.97);
    display:flex;align-items:center;justify-content:center;padding:6vw;
    opacity:0;pointer-events:none;transition:opacity .3s;
  }
  .gal-modal.open{opacity:1;pointer-events:auto}
  .gal-modal-stage{width:min(560px,84vw);aspect-ratio:4/5}
  .gal-modal-stage .ph{width:100%;height:100%}
  .gal-modal-close{
    position:absolute;top:24px;right:var(--pad);all:unset;cursor:pointer;
    width:44px;height:44px;border:1px solid var(--line);
    display:flex;align-items:center;justify-content:center;color:var(--gray);
  }
  .gal-modal-close:hover{color:var(--fg);border-color:var(--fg)}
  @media(max-width:900px){
    .pgal{grid-template-columns:repeat(3,1fr)}
  }
  @media(max-width:600px){
    .pgal{grid-template-columns:repeat(2,1fr)}
    .ig-item{flex-basis:150px}
  }

  /* 05 — 프로세스 밴드 */
  .band{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:clamp(26px,3.4vw,52px) var(--pad)}
  .process{display:grid;grid-template-columns:repeat(6,1fr);gap:clamp(16px,2.2vw,34px);max-width:1440px;margin:0 auto}
  .process div b{
    display:block;font-family:'IBM Plex Mono';font-size:11px;letter-spacing:.16em;
    text-transform:uppercase;color:var(--gray-soft);margin-bottom:12px;
    padding-bottom:10px;border-bottom:1px solid var(--line);
  }
  .process div p{font-size:13.5px;font-weight:600;line-height:1.5}
  .process div p em{display:block;margin-top:6px;font-style:normal;font-size:12px;font-weight:400;color:var(--gray);line-height:1.55}

  .rv{opacity:0;transform:translateY(24px);transition:opacity .85s cubic-bezier(.2,.7,.2,1),transform .85s cubic-bezier(.2,.7,.2,1)}
  .rv.in{opacity:1;transform:none}

  @media(max-width:1000px){
    .split,.sec--right .split{grid-template-columns:1fr;gap:28px}
    .split .side{position:static}
    .sec--right .split .side{order:0}
    .sec--right .split .media{order:0}
    .split .side .sec-desc{max-width:52ch}
    .sec--stack .head{grid-template-columns:1fr;gap:20px;align-items:start}
    .process{grid-template-columns:repeat(3,1fr);gap:24px}
    .stagger figure:nth-child(2),.stagger figure:nth-child(3){margin-top:0}
  }
  @media(max-width:900px){
    .ctx-grid{gap:32px}
    dl.meta{flex-direction:column;width:100%}
    .meta-item{flex-direction:row;justify-content:space-between;align-items:baseline;gap:16px;
      border-left:none;border-top:1px solid var(--line);padding:14px 0;width:100%}
    .meta-item:first-child{border-top:none;padding-top:0}
  }
  @media(max-width:600px){
    .stagger{grid-template-columns:repeat(2,1fr)}
    .process{grid-template-columns:1fr;gap:20px}
    .herovid{height:64svh}
    .longframe{max-height:62svh}
  }
  @media(prefers-reduced-motion:reduce){
    html{scroll-behavior:auto}
    .rv{opacity:1;transform:none;transition:none}
  }