/* ============================================================================
   LOUDPIXELS — ATELIER · CASE STUDY
   Same language as the index: near-black field, Bricolage caps, hairline
   rules, one lime accent. Boards keep their own proportions — never cropped.
   ============================================================================ */

/* ---------------------------------------------------------------- masthead */
.back{display:inline-flex;align-items:center;gap:10px;font-family:var(--m);font-size:10.5px;
  letter-spacing:.16em;text-transform:uppercase;color:var(--fg-3);transition:color .3s var(--e)}
.back:hover{color:var(--lime)}
.back i{display:block;width:26px;height:1px;background:currentColor;transition:width .4s var(--out)}
.back:hover i{width:40px}

/* -------------------------------------------------------------------- hero */
.chero{padding:clamp(120px,16vw,190px) 0 0}
.chero__ix{display:flex;align-items:center;gap:14px;margin-bottom:clamp(24px,3vw,40px)}
.chero__ix b{width:6px;height:6px;border-radius:50%;background:var(--lime);display:block}
.chero h1{font-size:clamp(44px,10vw,168px);letter-spacing:-.055em;line-height:.9;
  text-transform:uppercase;font-weight:700}
.chero h1 em{text-transform:none;letter-spacing:-.02em}
.chero__lead{margin:clamp(26px,3.4vw,46px) 0 0;max-width:58ch;color:var(--fg-2);
  font-size:clamp(15px,1.35vw,20px);line-height:1.6}
.chero__tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:clamp(24px,3vw,38px)}
.chero__tags span{font-family:var(--m);font-size:10px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--lime);border:1px solid rgba(184,240,77,.3);border-radius:100px;padding:8px 14px}

/* meta strip */
.cmeta{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);margin-top:clamp(40px,5vw,70px)}
.cmeta div{padding:24px 26px 26px 0;border-right:1px solid var(--line)}
.cmeta div + div{padding-left:clamp(18px,2.2vw,32px)}
.cmeta div:last-child{border-right:none;padding-right:0}
.cmeta .k{display:block;font-family:var(--m);font-size:9.5px;letter-spacing:.15em;
  text-transform:uppercase;color:var(--fg-3);margin-bottom:10px}
.cmeta .v{display:block;font-size:14.5px;color:var(--fg-2);line-height:1.5}
@media (max-width:900px){
  .cmeta{grid-template-columns:1fr 1fr}
  .cmeta div{border-bottom:1px solid var(--line);padding-right:20px}
  .cmeta div:nth-child(2n){border-right:none;padding-right:0}
  .cmeta div:nth-child(2n+1){padding-left:0}
  .cmeta div:nth-last-child(-n+2){border-bottom:none}
}
@media (max-width:560px){
  .cmeta{grid-template-columns:1fr}
  .cmeta div{border-right:none;padding-left:0 !important}
  .cmeta div:nth-last-child(-n+2){border-bottom:1px solid var(--line)}
  .cmeta div:last-child{border-bottom:none}
}

/* cover */
.ccover{margin-top:clamp(44px,5.4vw,80px);overflow:hidden;border-radius:12px;background:var(--bg-2)}
.ccover img{width:100%;height:auto;display:block}

/* ------------------------------------------------------------ body layout */
.cbody{display:grid;grid-template-columns:200px minmax(0,1fr);gap:clamp(26px,5vw,80px);
  align-items:start;padding:clamp(70px,9vw,140px) 0 0}
@media (max-width:1000px){.cbody{grid-template-columns:1fr;gap:0}}

.crail{position:sticky;top:110px}
@media (max-width:1000px){.crail{display:none}}
.crail__h{display:block;font-family:var(--m);font-size:9.5px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--fg-3);padding-bottom:14px;border-bottom:1px solid var(--line);
  margin-bottom:6px}
.crail a{display:flex;gap:12px;align-items:baseline;padding:8px 0;font-size:13.5px;
  color:var(--fg-3);transition:color .3s var(--e)}
.crail a b{font-family:var(--m);font-size:9.5px;font-weight:400;min-width:1.6em;
  transition:color .3s var(--e)}
.crail a:hover{color:var(--fg)}
.crail a.on{color:var(--fg)}
.crail a.on b{color:var(--lime)}

/* prose */
.cprose{padding-bottom:clamp(48px,6vw,84px)}
.cprose h2{font-size:clamp(24px,3.4vw,46px);letter-spacing:-.045em;text-transform:uppercase;
  margin-bottom:clamp(20px,2.4vw,32px)}
.cprose p{margin:0 0 20px;font-size:16.5px;line-height:1.68;color:var(--fg-2);max-width:62ch}
.cprose p:last-child{margin-bottom:0}
.cprose strong{color:var(--fg);font-weight:600}

/* problems list */
.cprobs{margin-top:clamp(30px,3.4vw,46px)}
.cprobs li{display:flex;gap:18px;padding:18px 0;border-top:1px solid var(--line);
  font-size:15.5px;line-height:1.55;color:var(--fg-2)}
.cprobs li:last-child{border-bottom:1px solid var(--line)}
.cprobs li b{flex:none;font-family:var(--m);font-size:10.5px;font-weight:400;color:var(--lime);
  letter-spacing:.12em;padding-top:4px}

/* ---------------------------------------------------------------- chapters */
.chap{padding:clamp(34px,4.4vw,64px) 0;scroll-margin-top:100px}
.chap__h{padding-top:clamp(26px,3vw,40px);border-top:1px solid var(--line);
  margin-bottom:clamp(26px,3vw,40px)}
.chap__n{display:inline-block;font-family:var(--m);font-size:10px;letter-spacing:.16em;
  text-transform:uppercase;color:#000;background:var(--lime);border-radius:100px;
  padding:6px 13px;margin-bottom:16px}
.chap__h h3{font-size:clamp(22px,3vw,40px);letter-spacing:-.045em;text-transform:uppercase}
.chap__h p{margin:14px 0 0;color:var(--fg-2);font-size:15.5px;line-height:1.6;max-width:56ch}

.boards{display:grid;grid-template-columns:1fr 1fr;gap:clamp(14px,1.8vw,26px)}
.bd{margin:0;grid-column:1/-1}
.bd--half{grid-column:span 1}
@media (max-width:820px){.bd--half{grid-column:1/-1}}
.bd__z{display:block;width:100%;padding:0;border:1px solid var(--line);border-radius:10px;
  overflow:hidden;background:var(--bg-2);cursor:zoom-in;line-height:0;
  transition:border-color .45s var(--e),transform .5s var(--out)}
.bd__z:hover{border-color:rgba(184,240,77,.4);transform:translateY(-3px)}
.bd__z img{width:100%;height:auto;display:block}
.bd figcaption{display:flex;align-items:baseline;gap:10px;padding-top:12px;
  font-family:var(--m);font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--fg-3)}
.bd figcaption::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--lime);
  flex:none;transform:translateY(-2px)}

/* ---------------------------------------------------------------- outcome */
.cout{margin:clamp(40px,5vw,72px) 0 0;padding:clamp(28px,4vw,56px);border:1px solid var(--line);
  border-radius:14px;background:var(--bg-2);scroll-margin-top:100px}
.cout h2{font-size:clamp(22px,3vw,40px);letter-spacing:-.045em;text-transform:uppercase;
  margin-bottom:clamp(26px,3vw,42px)}
.cfigs{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:clamp(20px,2.6vw,36px)}
.cfig b{display:block;font-size:clamp(26px,3.6vw,50px);font-weight:700;letter-spacing:-.05em;
  line-height:1;color:var(--lime)}
.cfig span{display:block;margin-top:12px;font-size:13.5px;line-height:1.5;color:var(--fg-2)}
.cnote{margin-top:clamp(28px,3.4vw,44px);padding:20px 22px;border-left:2px solid var(--lime);
  background:rgba(184,240,77,.05);border-radius:0 10px 10px 0}
.cnote span{display:block;font-family:var(--m);font-size:9.5px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--lime);margin-bottom:10px}
.cnote p{margin:0;font-size:14.5px;line-height:1.65;color:var(--fg-2)}

/* ---------------------------------------------------------------- lessons */
.cless{padding:clamp(48px,6vw,90px) 0 0}
.cless h2{font-size:clamp(22px,3vw,40px);letter-spacing:-.045em;text-transform:uppercase;
  margin-bottom:clamp(22px,2.6vw,36px)}
.cless li{display:flex;gap:20px;padding:22px 0;border-top:1px solid var(--line)}
.cless li:last-child{border-bottom:1px solid var(--line)}
.cless li b{flex:none;font-family:var(--m);font-size:10px;color:var(--fg-3);padding-top:5px;
  letter-spacing:.12em}
.cless h4{margin:0 0 8px;font-size:17px;font-weight:600;letter-spacing:-.02em}
.cless p{margin:0;font-size:15px;line-height:1.62;color:var(--fg-2);max-width:60ch}

/* ------------------------------------------------------------ next project */
.cnext{display:block;border-top:1px solid var(--line);margin-top:clamp(70px,9vw,130px);
  padding:clamp(50px,7vw,100px) 0;transition:background .5s var(--e)}
.cnext:hover{background:var(--bg-2)}
.cnext__in{display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap}
.cnext h2{font-size:clamp(30px,6vw,88px);letter-spacing:-.055em;text-transform:uppercase;
  margin-top:14px;transition:color .4s var(--e)}
.cnext:hover h2{color:var(--lime)}
.cnext__a{width:58px;height:58px;border-radius:50%;border:1px solid var(--line);flex:none;
  display:grid;place-items:center;font-size:20px;transition:all .45s var(--out)}
.cnext:hover .cnext__a{background:var(--lime);border-color:var(--lime);color:#000;transform:rotate(45deg)}

/* --------------------------------------------------------------- lightbox */
.lb{position:fixed;inset:0;z-index:450;display:none;place-items:center;padding:clamp(16px,3vw,44px);
  background:rgba(8,8,10,.94);backdrop-filter:blur(6px);cursor:zoom-out}
.lb.on{display:grid}
.lb img{max-width:100%;max-height:92vh;border-radius:8px;display:block}
.lb__x{position:absolute;top:22px;right:26px;width:44px;height:44px;border-radius:50%;
  border:1px solid var(--line-2);color:var(--fg);font-size:16px;background:transparent}
.lb__x:hover{background:var(--lime);color:#000;border-color:var(--lime)}

/* ------------------------------------------------------------- work index */
.wgrid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(18px,2.4vw,40px)}
@media (max-width:820px){.wgrid{grid-template-columns:1fr}}
.wcard__m{position:relative;aspect-ratio:4/3;overflow:hidden;border-radius:12px;background:var(--bg-2)}
.wcard__m img{width:100%;height:100%;object-fit:cover;transform:scale(1.05);
  transition:transform 1.1s var(--out),filter .6s var(--e);filter:grayscale(.35)}
.wcard:hover .wcard__m img{transform:scale(1);filter:none}
.wcard__n{position:absolute;top:14px;left:16px;z-index:2;font-family:var(--m);font-size:10px;
  letter-spacing:.18em;color:#fff;mix-blend-mode:difference}
.wcard__b{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;padding:18px 2px 0}
.wcard__b h3{font-size:clamp(20px,2.2vw,32px);letter-spacing:-.045em;text-transform:uppercase;
  transition:color .4s var(--e)}
.wcard:hover .wcard__b h3{color:var(--lime)}
.wcard__b p{margin:8px 0 0;font-size:13.5px;color:var(--fg-2);max-width:36ch}
.wcard__y{font-family:var(--m);font-size:10.5px;letter-spacing:.14em;color:var(--fg-3);flex:none}