/* GROEVIUS WILSON — Étude de cas MLB × KARINA · css/etude-de-cas.css */
body{margin:0;background:#0B0B0C}
.cs,.cs *,.cs *::before,.cs *::after{box-sizing:border-box}
.cs{--ink:#0B0B0C;--ink2:#141416;--ink3:#1C1C1F;--paper:#EEECE6;--paper2:#E2DFD6;--lime:#CCFF00;--mute:#5E5C57;--muted:#A6A59F;--line:rgba(11,11,12,.16);--lined:rgba(238,236,230,.16);--fc:'Anton','Impact','Arial Narrow',sans-serif;--fs:'Archivo','Helvetica Neue',Arial,sans-serif;--fm:'JetBrains Mono',ui-monospace,Menlo,monospace;--pad:clamp(16px,3vw,48px);--e:cubic-bezier(.2,.7,0,1);--eio:cubic-bezier(.76,0,.24,1);position:relative;background:var(--ink);color:var(--paper);font-family:var(--fs);font-size:16px;line-height:1.5;overflow-x:clip;-webkit-font-smoothing:antialiased}
:where(.cs) a{color:inherit;text-decoration:none}
:where(.cs) a:hover{color:inherit}
:where(.cs) img,:where(.cs) video{display:block;max-width:100%}
:where(.cs) button{font:inherit;color:inherit;background:none;border:0;padding:0;margin:0;cursor:pointer}
:where(.cs) :is(h1,h2,h3,p,ol,ul,figure,dl,dd){margin:0}
:where(.cs) :is(ol,ul){list-style:none;padding:0}
.cs ::selection{background:var(--lime);color:var(--ink)}
.cs :focus-visible{outline:2px solid var(--lime);outline-offset:3px}
.mono{font-family:var(--fm);font-size:12px;font-weight:500;letter-spacing:.06em;text-transform:uppercase;line-height:1.5}
.cond{font-family:var(--fc);font-weight:400;text-transform:uppercase;line-height:.84}
.wide{font-family:var(--fs);font-stretch:125%;font-weight:900;text-transform:uppercase;line-height:.9;letter-spacing:-.01em}
.lime{color:var(--lime)}
.ico{width:18px;height:18px;flex:none;overflow:visible}
.ico path{fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:square}

/* page-in curtain */
.curtain{position:fixed;inset:0;z-index:100;background:var(--lime);pointer-events:none;animation:curtain 1.1s var(--eio) .1s both}
@keyframes curtain{from{clip-path:inset(0 0 0 0)}to{clip-path:inset(0 0 100% 0)}}

/* cursor */
.cur{position:fixed;left:0;top:0;z-index:120;pointer-events:none;display:none;will-change:transform}
.cs[data-cur="on"] .cur{display:block}
.cs[data-cur="on"],.cs[data-cur="on"] *{cursor:none!important}
.cur-dot{position:absolute;left:-6px;top:-6px;width:12px;height:12px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 1.5px var(--ink);transition:width .4s var(--e),height .4s var(--e),left .4s var(--e),top .4s var(--e),background .3s,box-shadow .3s}
.cur[data-state="link"] .cur-dot{width:46px;height:46px;left:-23px;top:-23px;background:rgba(204,255,0,.18);box-shadow:0 0 0 1.5px var(--lime)}
.cur[data-hide="1"]{opacity:0}

/* header */
.hdr{position:fixed;left:0;right:0;top:0;z-index:60;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:16px;padding:14px var(--pad);color:var(--paper);transition:color .4s}
.cs[data-hdr="light"] .hdr,.cs[data-hdr="lime"] .hdr{color:var(--ink)}
.hdr::before{content:"";position:absolute;inset:0;z-index:-1;background:var(--ink);opacity:0;box-shadow:0 1px 0 var(--lined);transition:opacity .4s,background-color .4s}
.cs[data-top="0"] .hdr::before{opacity:.94}
.cs[data-hdr="light"] .hdr::before{background:var(--paper);box-shadow:0 1px 0 var(--line)}
.cs[data-hdr="lime"] .hdr::before{background:var(--lime);box-shadow:0 1px 0 rgba(11,11,12,.3)}
.back{display:inline-flex;align-items:center;gap:10px;justify-self:start;min-height:44px;font-family:var(--fm);font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase}
.back .ico{transition:transform .5s var(--e)}
.back:hover .ico{transform:translateX(-6px)}
.hdr-mid{justify-self:center;opacity:.8}
.hdr-r{justify-self:end;display:flex;gap:10px;align-items:center}
.pill{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:46px;padding:0 20px;border-radius:999px;font-family:var(--fm);font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;white-space:nowrap;transition:background .3s,color .3s,border-color .3s,transform .5s var(--e);transform:translate3d(var(--mx,0px),var(--my,0px),0)}
.pill .ico{width:16px;height:16px;transition:transform .5s var(--e)}
.pill:hover .ico{transform:rotate(45deg)}
.pill-lime{background:var(--lime);color:var(--ink)}
.pill-lime:hover{background:var(--paper)}
.cs[data-hdr="lime"] .hdr .pill-lime{background:var(--ink);color:var(--lime)}
.pill-line{border:1.5px solid currentColor}
.pill-line:hover{background:var(--lime);border-color:var(--lime);color:var(--ink)}
.pill-ink{background:var(--ink);color:var(--paper)}
.pill-ink:hover{background:var(--paper);color:var(--ink)}

/* reveal */
[data-reveal]{transition:opacity 1s var(--e),transform 1.2s var(--e)}
.cs[data-motion="on"] [data-reveal="1"]:not([data-in]){opacity:0;transform:translate3d(0,50px,0)}

/* hero */
.hero{position:relative;padding:clamp(120px,12vw,180px) var(--pad) clamp(70px,8vw,120px);background:var(--ink)}
.kick{display:flex;justify-content:space-between;gap:16px;padding-bottom:14px;border-bottom:1px solid var(--lined);color:var(--muted)}
.h-title{margin-top:clamp(40px,5vw,80px);font-size:clamp(54px,10.6vw,190px);animation:rise 1.2s var(--e) .35s both}
.h-title .ss{display:block;color:transparent;-webkit-text-stroke:2px var(--lime)}
@keyframes rise{from{transform:translate3d(0,60px,0);opacity:0}to{transform:none;opacity:1}}
.h-row{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:clamp(20px,2.6vw,44px);margin-top:clamp(36px,4vw,64px);align-items:start}
.lead{grid-column:1/span 5;font-size:clamp(18px,1.6vw,24px);line-height:1.45}
.meta{grid-column:7/span 6;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:28px}
.meta > div{display:flex;flex-direction:column;gap:4px;padding:12px 0;border-top:1px solid var(--lined)}
.meta dt{color:var(--muted)}
.meta dd{font-size:15px}
.tilt{margin-top:clamp(56px,7vw,110px);perspective:1800px}
.browser{position:relative;border-radius:12px;overflow:hidden;background:#1B1B1E;border:1px solid #2A2A2E;transform-origin:50% 0;transform:rotateX(calc((1 - var(--f,1))*22deg)) scale(calc(.92 + var(--f,1)*.08));will-change:transform}
.br-bar{display:flex;align-items:center;gap:7px;height:38px;padding:0 14px;background:#202024}
.br-bar i{width:10px;height:10px;border-radius:50%;background:#3B3B40}
.br-bar i:first-child{background:var(--lime)}
.br-url{flex:1;margin:0 10% 0 4%;height:22px;border-radius:5px;background:#2B2B30;display:flex;align-items:center;justify-content:center;color:#A6A59F;font-size:10px}
.br-view{position:relative;aspect-ratio:16/10;background:#0B0C0E;overflow:hidden}
.br-view video,.br-view img{width:100%;height:100%;object-fit:cover;object-position:top center}

/* sections */
.sec{position:relative;padding:clamp(100px,10vw,160px) var(--pad)}
.light{background:var(--paper);color:var(--ink)}
.dark{background:var(--ink);color:var(--paper)}
.limebg{background:var(--lime);color:var(--ink)}
.s-head{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:clamp(16px,2vw,32px);align-items:end;margin-bottom:clamp(48px,6vw,96px)}
.s-num{grid-column:1/span 2;font-size:clamp(90px,11vw,190px);line-height:.78;color:transparent;-webkit-text-stroke:2px var(--ink)}
.dark .s-num{-webkit-text-stroke-color:var(--lime)}
.s-title{grid-column:3/span 6;font-size:clamp(52px,7.4vw,130px)}
.s-side{grid-column:9/span 4;font-size:17px;line-height:1.5}
.dark .s-side{color:#D8D6D0}

/* 01 brief (dark) */
.brief-p{max-width:22em;font-family:var(--fs);font-stretch:80%;font-weight:800;text-transform:uppercase;font-size:clamp(30px,4.2vw,68px);line-height:1;letter-spacing:-.01em}
.w{opacity:calc(.16 + var(--on,1)*.84)}
.hl{position:relative;z-index:0;color:var(--ink);white-space:nowrap}
.hl::before{content:"";position:absolute;left:-.06em;right:-.06em;top:.08em;bottom:0;background:var(--lime);z-index:-1;transform-origin:left center;transform:scaleX(var(--on,1))}
.drops{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:clamp(16px,2vw,32px);align-items:start;margin-top:clamp(64px,8vw,120px)}
.drop{position:relative;overflow:hidden;background:var(--ink3);transition:transform 1.2s var(--e),opacity 1s var(--e)}
.drop:nth-child(2){margin-top:clamp(40px,7vw,120px)}
.cs[data-motion="on"] .drop:not([data-in]){opacity:0;transform:translate3d(-80px,40px,0) rotate(-3deg)}
.cs[data-motion="on"] .drop:nth-child(2):not([data-in]){transform:translate3d(80px,40px,0) rotate(3deg)}
.drop-img{aspect-ratio:4/5;overflow:hidden;margin:0}
.drop-img img{width:100%;height:100%;object-fit:cover;filter:grayscale(.85) contrast(1.05);transform:scale(1.04);transition:filter .7s,transform 1.4s var(--e)}
.drop:hover .drop-img img{filter:none;transform:scale(1.1)}
.drop-txt{position:absolute;left:0;right:0;bottom:0;padding:clamp(18px,2vw,30px);background:linear-gradient(180deg,rgba(11,11,12,0),rgba(11,11,12,.88));display:flex;flex-direction:column;gap:8px}
.drop-k{color:var(--lime)}
.drop-t{font-family:var(--fs);font-stretch:125%;font-weight:900;font-style:italic;text-transform:uppercase;font-size:clamp(30px,3.6vw,60px);line-height:.92}
.drop-tags{color:#D8D6D0}
.figs{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));margin-top:clamp(64px,8vw,120px)}
.fig{position:relative;padding:22px 18px 0 0;display:flex;flex-direction:column;gap:8px;border-top:1px solid var(--lined)}
.fig + .fig{padding-left:18px;border-left:1px solid var(--lined)}
.fig-bar{position:absolute;left:0;top:-1px;height:3px;width:100%;background:var(--lime);transform-origin:left;transform:scaleX(var(--fb,1));transition:transform 1.3s var(--e)}
.fig .cond{font-size:clamp(84px,9vw,160px);line-height:.8;font-variant-numeric:tabular-nums}
.fig .mono{color:var(--muted)}

/* 02 art direction (dark) */
.pal{display:flex;gap:8px;height:clamp(300px,32vw,440px)}
.sw{flex:1 1 0;min-width:0;display:flex;flex-direction:column;gap:12px;transition:flex-grow .7s var(--e)}
.sw:hover{flex-grow:2.6}
.sw-c{flex:1;box-shadow:inset 0 0 0 1px var(--lined);transform-origin:bottom center;transition:transform 1.1s var(--e)}
.cs[data-motion="on"] .pal:not([data-in]) .sw-c{transform:scaleY(0)}
.sw:nth-child(2) .sw-c{transition-delay:.07s}.sw:nth-child(3) .sw-c{transition-delay:.14s}.sw:nth-child(4) .sw-c{transition-delay:.21s}.sw:nth-child(5) .sw-c{transition-delay:.28s}.sw:nth-child(6) .sw-c{transition-delay:.35s}.sw:nth-child(7) .sw-c{transition-delay:.42s}
.sw-meta{display:flex;flex-direction:column;gap:2px;min-height:64px;white-space:nowrap;overflow:hidden}
.sw-meta b{font-size:15px}
.sw-meta .mono{color:var(--muted);font-size:11px}
.sw-use{opacity:0;transition:opacity .4s}
.sw:hover .sw-use{opacity:1}
.vfd{margin-top:clamp(64px,8vw,120px);padding:clamp(24px,3vw,44px);background:var(--ink2);border:1px solid var(--lined)}
.vfd-head{display:flex;justify-content:space-between;gap:16px;color:var(--muted)}
.vfd-head b{color:var(--lime);font-weight:700}
.vfd-txt{margin:clamp(24px,3vw,44px) 0;font-family:var(--fs);font-weight:900;font-style:italic;text-transform:uppercase;font-size:clamp(40px,5.6vw,100px);line-height:.9;white-space:nowrap;color:var(--paper);font-variation-settings:'wdth' var(--wd,100)}
.vfd-rail{position:relative;height:2px;background:var(--lined)}
.vfd-rail i{position:absolute;top:-5px;width:12px;height:12px;border-radius:50%;background:var(--lime);left:calc((var(--wd,100) - 62) / 63 * 100%);transform:translateX(-50%)}
.vfd-scale{display:flex;justify-content:space-between;margin-top:10px;color:var(--muted)}
.types{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(12px,1.6vw,24px);margin-top:clamp(16px,2vw,24px)}
.ty{padding:clamp(20px,2.4vw,32px);background:var(--ink2);border:1px solid var(--lined);display:flex;flex-direction:column;gap:16px;min-height:220px;transition:border-color .4s,transform .6s var(--e)}
.ty:hover{border-color:var(--lime);transform:translateY(-6px)}
.ty .mono{color:var(--lime)}
.sp-b{font-family:'Inter Tight',sans-serif;font-size:clamp(22px,2.2vw,34px);font-weight:500;line-height:1.15;letter-spacing:-.01em}
.sp-c{font-family:var(--fm);font-size:clamp(15px,1.4vw,20px);letter-spacing:.06em}
.sp-d{font-family:'Noto Sans KR',sans-serif;font-size:clamp(44px,5vw,86px);font-weight:700;line-height:1}
.princ{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(12px,1.6vw,24px);margin-top:clamp(64px,8vw,120px)}
.pr{position:relative;padding:24px;border-top:3px solid var(--lime);background:linear-gradient(var(--ink2),var(--ink2));display:flex;flex-direction:column;gap:14px;min-height:240px;overflow:hidden}
.pr-n{position:absolute;right:16px;top:8px;font-size:clamp(80px,8vw,130px);line-height:.9;color:transparent;-webkit-text-stroke:1.5px rgba(204,255,0,.35)}
.pr .cond{font-size:clamp(30px,2.8vw,46px);line-height:.9;margin-top:auto}
.pr .mono{color:var(--lime)}
.pr p{font-size:15px;line-height:1.5;color:#D8D6D0}

/* experience rows */
.xp{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:clamp(20px,2.6vw,44px);align-items:center;padding:clamp(40px,5vw,80px) 0;border-top:1px solid var(--lined)}
.xp-txt{grid-column:1/span 5;display:flex;flex-direction:column;gap:16px}
.xp-media{grid-column:6/span 7}
.xp.rev .xp-txt{grid-column:8/span 5;grid-row:1}
.xp.rev .xp-media{grid-column:1/span 7;grid-row:1}
.xp-n{font-size:clamp(70px,7vw,120px);line-height:.78;color:transparent;-webkit-text-stroke:2px var(--lime)}
.xp-t{font-size:clamp(36px,3.8vw,64px);line-height:.88}
.xp-p{font-size:16px;line-height:1.55;color:#D8D6D0;max-width:44ch}
.frame{position:relative;border-radius:10px;overflow:hidden;border:1px solid #2A2A2E;background:#141416;transform:translate3d(0,var(--py,0px),0)}
.frame img{width:100%;height:auto}
.tag{display:inline-flex;align-self:flex-start;background:var(--lime);color:var(--ink);padding:4px 8px}

/* stacking screens */
.stk{position:relative;max-width:1080px;margin:0 auto}
.stk-card{position:sticky;margin-bottom:clamp(40px,8vh,90px);border-radius:12px;overflow:hidden;background:#141416;border:1px solid #2A2A2E;box-shadow:0 -30px 60px -30px rgba(0,0,0,.7)}
.stk-card:nth-child(1){top:96px}.stk-card:nth-child(2){top:124px}.stk-card:nth-child(3){top:152px}.stk-card:nth-child(4){top:180px}
.stk-bar{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:12px 16px;background:#202024;color:#D8D6D0}
.stk-card img{width:100%;height:auto}

/* phones */
.phones{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:clamp(16px,2.4vw,40px);align-items:start}
.ph{display:flex;flex-direction:column;gap:12px}
.ph:nth-child(2){margin-top:70px}.ph:nth-child(3){margin-top:20px}.ph:nth-child(4){margin-top:110px}
.ph-f{border-radius:30px;border:7px solid var(--ink);overflow:hidden;background:var(--ink);aspect-ratio:390/844;box-shadow:0 30px 60px -25px rgba(11,11,12,.55);transform:translate3d(0,var(--py,0px),0)}
.ph-f img{width:100%;height:100%;object-fit:cover;object-position:top}

/* under the hood */
.ax{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 clamp(20px,2.6vw,44px)}
.ax li{display:grid;grid-template-columns:44px 1fr;gap:10px;padding:18px 0;border-top:1px solid var(--line);font-size:18px;line-height:1.4}
.ax .mono{color:var(--ink);font-weight:700;padding-top:3px}

/* end */
.end{position:relative;padding:clamp(110px,11vw,180px) var(--pad) 0;background:var(--lime);color:var(--ink);overflow:hidden}
.end-k{display:flex;justify-content:space-between;gap:16px;padding-bottom:14px;border-bottom:1.5px solid var(--ink)}
.end-t{font-size:clamp(70px,13vw,230px);line-height:.82;margin-top:clamp(40px,5vw,80px)}
.end-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:clamp(32px,4vw,56px)}
.disc{margin-top:clamp(60px,7vw,110px);padding:16px 0 22px;border-top:1.5px solid var(--ink);display:flex;justify-content:space-between;gap:24px}
.disc p{max-width:70ch}

@media (max-width:900px){
  .hdr-mid{display:none}
  .hdr{grid-template-columns:1fr auto}
  .lead,.meta{grid-column:1/-1}
  .s-head > *{grid-column:1/-1}
  .drops{grid-template-columns:1fr}
  .drop:nth-child(2){margin-top:0}
  .figs{grid-template-columns:repeat(2,minmax(0,1fr))}
  .fig:nth-child(3){padding-left:0;border-left:0}
  .pal{flex-wrap:wrap;height:auto}
  .sw{flex:1 1 40%;height:180px}
  .sw:hover{flex-grow:1}
  .sw-use{opacity:1}
  .vfd-txt{font-size:9vw}
  .types,.princ{grid-template-columns:1fr}
  .xp-txt,.xp-media,.xp.rev .xp-txt,.xp.rev .xp-media{grid-column:1/-1!important;grid-row:auto!important}
  .phones{grid-template-columns:repeat(2,minmax(0,1fr))}
  .ph:nth-child(n){margin-top:0}
  .ph:nth-child(2n){margin-top:50px}
  .ax{grid-template-columns:1fr}
  .disc{flex-direction:column}
  .meta{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){
  .cs *,.cs *::before,.cs *::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;transition-delay:0s!important}
}