/* Case studies group (work/*). Page-specific only; everything else comes from assets/site.css. Prefix: .wk- */

/* ---- breadcrumb + inner hero ---- */
.wk-crumb{position:relative;z-index:1;margin-bottom:clamp(36px,4vw,56px)}
.wk-crumb ol{display:flex;flex-wrap:wrap;gap:6px 0;font:500 12.5px/1.4 var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--on-3)}
.wk-crumb li{display:inline-flex;align-items:center}
.wk-crumb li+li::before{content:"/";margin:0 12px;color:var(--rule-d2)}
.wk-crumb a{color:var(--on-2);text-decoration:none;padding:6px 0;background:linear-gradient(currentColor,currentColor) 0 100%/0 1px no-repeat;transition:background-size .45s var(--ease),color .25s}
.wk-crumb a:hover{color:var(--on);background-size:100% 1px}
.wk-crumb [aria-current]{color:var(--on)}
.wk-hero .mono.wk-eye{grid-column:1/-1;margin-bottom:22px;color:var(--copper-text)}
.wk-hero h1.d2{grid-column:1/8;font-size:clamp(42px,5.6vw,86px)}
.wk-hero .sub{margin-top:clamp(32px,4vw,56px)}
/* headline numbers along the foot of a case hero */
.wk-hfigs{border-top:1px solid var(--rule-d);padding:34px 0 46px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(20px,3vw,56px)}
.wk-hfigs > div{min-width:0}
.wk-hfigs .num{font-size:clamp(44px,5vw,80px);color:var(--on)}
.wk-hfigs .num sup{font-size:.42em;vertical-align:top;position:relative;top:.2em;color:var(--copper-text);letter-spacing:0}
.wk-hfigs span{display:block;margin-top:12px;font-size:15px;font-weight:500;color:var(--on-2);max-width:28ch}

/* ---- index: dominant feature ---- */
.wk-feat{grid-column:1/-1;display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:clamp(32px,4vw,72px);align-items:start}
.wk-feat .mono{margin-bottom:22px}
.wk-feat .d2{font-size:clamp(40px,5vw,76px);margin-bottom:28px}
.wk-feat .lede{margin-bottom:36px}
.wk-feat-ph{aspect-ratio:4/3}
.wk-feat .wk-feat-figs{grid-column:1/-1;margin-top:clamp(16px,2vw,32px);grid-template-columns:repeat(3,minmax(0,1fr));column-gap:clamp(24px,3vw,56px)}
.wk-feat .wk-feat-figs > div{padding:24px 0 0;border-bottom:0}
.wk-feat .btn{margin-top:4px}
.wk-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:28px}
.wk-meta span{font:500 12.5px/1 var(--mono);letter-spacing:.06em;text-transform:uppercase;padding:9px 11px;border:1px solid var(--rule-2);border-radius:var(--r);color:var(--ink-2)}
.dark .wk-meta span{border-color:var(--rule-d2);color:var(--on-2)}

/* ---- index: large editorial rows ---- */
.wk-rows{grid-column:1/-1;border-top:1px solid var(--ink)}
.wk-row{display:grid;grid-template-columns:56px minmax(0,4fr) minmax(0,5fr) minmax(0,3fr);gap:clamp(20px,2.6vw,44px);align-items:start;padding:clamp(36px,4vw,56px) 0;border-bottom:1px solid var(--rule);text-decoration:none;color:inherit;position:relative;isolation:isolate}
.wk-row::before{content:"";position:absolute;left:-16px;right:-16px;top:0;bottom:-1px;background:var(--bone-2);opacity:0;transition:opacity .45s var(--ease);z-index:-1}
.wk-row:hover::before,.wk-row:focus-visible::before{opacity:1}
.wk-row .ix{font:400 italic 22px/1 var(--display);color:var(--copper);padding-top:10px}
.wk-row .ph-fig{aspect-ratio:4/3}
.wk-row .ph-fig img{transition:transform 1.1s var(--ease)}
.wk-row:hover .ph-fig img{transform:scale(1.03)}
.wk-row h3{font:700 clamp(28px,3vw,46px)/1.08 var(--display);letter-spacing:-.02em;transition:color .3s}
.wk-row:hover h3,.wk-row:focus-visible h3{color:var(--copper)}
.wk-row .mono{margin-bottom:16px}
.wk-row p{margin-top:16px;color:var(--ink-2);max-width:48ch}
.wk-row .go{display:inline-flex;align-items:center;gap:10px;margin-top:24px;font-weight:500}
.wk-row .go svg{width:14px;height:14px;transition:transform .5s var(--ease)}
.wk-row:hover .go svg{transform:translateX(5px)}
.wk-figs{border-top:1px solid var(--ink)}
.wk-figs > div{padding:16px 0;border-bottom:1px solid var(--rule)}
.wk-figs > div:last-child{border-bottom:0}
.wk-figs .num{font-size:clamp(34px,3.2vw,50px)}
.wk-figs span{display:block;margin-top:6px;font-size:14.5px;color:var(--ink-2)}

/* further engagements, not yet written up */
.wk-further{grid-column:1/-1;margin-top:clamp(72px,8vw,128px);display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:clamp(24px,3vw,56px)}
.wk-further .d3{max-width:16ch}
.wk-further .body{margin-top:18px;font-size:15.5px}
.wk-further .case-more{margin-top:0}
.wk-further .cm{grid-template-columns:minmax(0,1.1fr) minmax(0,1.6fr);cursor:default}
.wk-further .cm:hover h3{transform:none;color:inherit}
.wk-further .cm .mono{display:block;margin-top:10px}

.wk-xind{margin-top:56px;border-top:1px solid var(--ink)}

/* method note + logo band on light ground */
.wk-method{grid-column:1/-1;margin-top:clamp(72px,8vw,128px);border-top:1px solid var(--ink);padding-top:30px;display:grid;grid-template-columns:200px minmax(0,1fr);gap:28px}
.wk-method .d3{max-width:36ch}

/* ---- case page: body with on-this-page rail ---- */
.wk-toc{grid-column:1/4}
.wk-toc .sticky{position:sticky;top:100px}
.wk-toc .mono{margin-bottom:16px}
.wk-toc ol{border-top:1px solid var(--ink)}
.wk-toc li{border-bottom:1px solid var(--rule)}
.wk-toc a{display:grid;grid-template-columns:34px minmax(0,1fr);align-items:center;min-height:48px;padding:6px 0;font-size:15.5px;font-weight:500;color:var(--ink-2);text-decoration:none;transition:color .3s}
.wk-toc a i{font:400 italic 17px/1 var(--display);color:var(--copper)}
.wk-toc a:hover{color:var(--copper)}
.wk-spec{margin-top:40px;display:grid;gap:0;border-top:1px solid var(--ink)}
.wk-spec div{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.3fr);gap:12px;padding:14px 0;border-bottom:1px solid var(--rule)}
.wk-spec dt{font:500 12.5px/1.5 var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3)}
.wk-spec dd{margin:0;font-size:15px;color:var(--ink)}
.wk-main{grid-column:5/13;min-width:0}
.wk-s{padding-top:clamp(8px,1vw,16px)}
.wk-s + .wk-s{margin-top:clamp(80px,9vw,140px)}
.wk-sh{display:grid;grid-template-columns:64px minmax(0,1fr);gap:16px;align-items:baseline;margin-bottom:clamp(32px,3.5vw,52px)}
.wk-sh .n{font:700 italic clamp(32px,3vw,44px)/1 var(--display);color:var(--copper);letter-spacing:-.02em}
.wk-sh .mono{display:block;margin-bottom:12px}
.wk-lead{font:700 clamp(21px,1.9vw,27px)/1.36 var(--display);letter-spacing:-.012em;color:var(--ink);max-width:34ch;margin-bottom:36px}
.wk-probs{border-top:1px solid var(--ink)}
.wk-probs li{display:grid;grid-template-columns:64px minmax(0,1fr);gap:16px;padding:20px 0;border-bottom:1px solid var(--rule);font-size:17px;color:var(--ink-2)}
.wk-probs li i{font:400 italic 18px/1.5 var(--display);color:var(--copper)}

/* what we built: workstreams */
.wk-built{display:grid;gap:clamp(40px,4vw,64px)}
.wk-b{border-top:1px solid var(--ink);padding-top:26px;display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:clamp(20px,3vw,48px)}
.wk-b .ix{display:block;font:400 italic 20px/1 var(--display);color:var(--copper);margin-bottom:14px}
.wk-b h3{font:700 clamp(22px,2vw,28px)/1.18 var(--display);letter-spacing:-.01em}
.wk-b .desc{margin-top:12px;font-size:15.5px;color:var(--ink-2);max-width:36ch}
.wk-b ul{display:grid;gap:0}
.wk-b li{position:relative;padding:12px 0 12px 26px;border-bottom:1px solid var(--rule);font-size:15.5px;color:var(--ink-2)}
.wk-b li:first-child{padding-top:0}
.wk-b li:first-child::before{top:9px}
.wk-b li::before{content:"";position:absolute;left:0;top:21px;width:12px;height:1px;background:var(--copper)}

/* architecture plate band (dark) */
.wk-arch-head{grid-column:1/9;margin-bottom:clamp(40px,5vw,72px)}
.wk-arch-head .mono{margin-bottom:22px}
.wk-arch-head .lede{margin-top:24px}
.wk-fig{grid-column:1/-1}
.wk-fig .plate-in{padding:clamp(18px,2vw,32px) clamp(12px,2vw,32px) clamp(12px,1.4vw,22px)}
.wk-hint{display:none;grid-column:1/-1;margin-top:14px;font:500 12.5px/1.4 var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--on-3)}
.wk-figcap{grid-column:1/-1;margin-top:18px;display:flex;flex-wrap:wrap;gap:8px 28px;font:500 12.5px/1.5 var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--on-3)}
.wk-figcap b{font-weight:500;color:var(--copper-text)}
.wk-scr-wrap{grid-column:1/-1;margin-top:clamp(72px,8vw,128px);display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:clamp(24px,3vw,56px);align-items:end}
.wk-scr-t p{color:var(--on-2);font-weight:500;font-size:15.5px;max-width:32ch;margin-top:14px}
.wk-scr-t .mono{display:block}

/* product screen: credit health dashboard */
.wk-cs{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);min-height:30em}
.wk-cs-l{padding:1.2em 1.4em;border-right:1px solid var(--rule);min-width:0}
.wk-cs-r{display:flex;flex-direction:column;min-width:0}
.wk-cs .hd{display:flex;justify-content:space-between;align-items:center;gap:1em;margin-bottom:.8em}
.wk-cs .hd span{font:500 .8em/1 var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3)}
.wk-score{display:flex;align-items:baseline;gap:.6em;margin-bottom:.6em}
.wk-score b{font:700 3.4em/1 var(--display);letter-spacing:-.03em;font-variant-numeric:tabular-nums}
.wk-score i{font:500 .9em/1 var(--mono);font-style:normal;color:#2A5A47}
.wk-fac{padding:1.1em 1.4em;border-bottom:1px solid var(--rule)}
.wk-fac div{display:grid;grid-template-columns:minmax(0,1fr) 5.5em 2.6em;gap:.8em;align-items:center;padding:.42em 0;font-size:.95em}
.wk-fac div span:first-child{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.wk-fac s{display:block;height:.5em;background:rgba(16,26,21,.08);border-radius:1px;position:relative;text-decoration:none}
.wk-fac s::after{content:"";position:absolute;left:0;top:0;bottom:0;width:var(--w);background:#3B6B57;border-radius:1px}
.wk-fac s.lo::after{background:#B86C3C}
.wk-fac em{font:500 .9em/1 var(--mono);font-style:normal;color:var(--ink-3);text-align:right}
.wk-act{padding:1.1em 1.4em}
.wk-act > div{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:.8em;align-items:center;padding:.6em 0;border-top:1px solid var(--rule)}
.wk-act > div:first-of-type{border-top:0}
.wk-act b{display:block;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.wk-act small{display:block;color:var(--ink-3);font-size:.9em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

/* product screen: phone (BetterHealth) */
.wk-phones{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:clamp(14px,2vw,28px);max-width:640px}
.wk-ph{background:linear-gradient(180deg,#1E4234 0%,#0E261D 100%);border-radius:30px;padding:9px;box-shadow:0 1px 0 rgba(244,239,230,.14) inset,0 0 0 1px rgba(10,29,23,.55),0 50px 80px -46px rgba(10,29,23,.8)}
.wk-ph .scr{border-radius:22px;font-size:clamp(10.5px,.9vw,12.5px);min-height:34em;padding:1.4em 1.2em 1.2em}
.wk-ph .bar-t{display:flex;justify-content:space-between;align-items:center;font:500 .85em/1 var(--mono);color:var(--ink-3);margin-bottom:1.2em}
.wk-ph h5{margin:0;font:700 1.5em/1.15 var(--display);letter-spacing:-.01em}
.wk-ph h5 span{display:block;font:400 .56em/1.4 var(--sans);color:var(--ink-3);letter-spacing:0;margin-top:.3em}
.wk-ring{display:grid;grid-template-columns:5.2em minmax(0,1fr);gap:1em;align-items:center;margin:1.2em 0;padding:1em 0;border-top:1px solid var(--rule);border-bottom:1px solid var(--rule)}
.wk-ring svg{width:5.2em;height:5.2em}
.wk-ring b{display:block;font:700 1.5em/1 var(--display)}
.wk-ring small{color:var(--ink-3)}
.wk-meal{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:.6em;padding:.75em 0;border-bottom:1px solid var(--rule);align-items:center}
.wk-meal b{display:block;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.wk-meal small{color:var(--ink-3);white-space:nowrap}
.wk-mac{display:grid;gap:.55em;margin-top:1em}
.wk-mac div{display:grid;grid-template-columns:4.6em minmax(0,1fr) 3.4em;gap:.6em;align-items:center;font-size:.92em}
.wk-mac s{display:block;height:.45em;background:rgba(16,26,21,.08);position:relative;text-decoration:none}
.wk-mac s::after{content:"";position:absolute;left:0;top:0;bottom:0;width:var(--w);background:#3B6B57}
.wk-mac em{font:500 .9em/1 var(--mono);font-style:normal;color:var(--ink-3);text-align:right}
.wk-ph .note{margin-top:1.2em;padding:.8em .9em;background:rgba(219,150,99,.12);border-radius:3px;font-size:.92em;color:var(--ink-2)}
.wk-ph .note b{font-weight:600;color:#8A4720}

/* results table */
.wk-res{width:100%;border-collapse:collapse;border-top:1px solid var(--ink)}
.wk-res th,.wk-res td{text-align:left;vertical-align:baseline;padding:20px 16px 20px 0;border-bottom:1px solid var(--rule)}
.wk-res thead th{font:500 12.5px/1.4 var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3);padding-top:14px;padding-bottom:14px}
.wk-res tbody th{font-weight:500;font-size:16px;line-height:1.45;color:var(--ink);width:38%}
.wk-res .v{font:700 clamp(30px,3vw,44px)/1 var(--display);letter-spacing:-.03em;font-variant-numeric:lining-nums tabular-nums;white-space:nowrap;width:24%}
.wk-res td:last-child{font-size:15px;color:var(--ink-2)}
.wk-res-note{margin-top:16px;font-size:14px;color:var(--ink-3);max-width:62ch}

/* tech stack */
.wk-stack{border-top:1px solid var(--ink)}
.wk-stack div{display:grid;grid-template-columns:minmax(0,3fr) minmax(0,7fr);gap:16px;padding:18px 0;border-bottom:1px solid var(--rule);align-items:baseline}
.wk-stack dt{font:500 12.5px/1.5 var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3)}
.wk-stack dd{margin:0;display:flex;flex-wrap:wrap;gap:8px}
.wk-stack dd span{font:500 14.5px/1 var(--sans);padding:9px 12px;border:1px solid var(--rule-2);border-radius:var(--r);color:var(--ink);background:var(--paper)}
.wk-photo{margin-top:clamp(48px,5vw,80px);aspect-ratio:16/9}

/* ---- related + next/previous ---- */
.wk-rel{grid-column:1/-1;display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:clamp(32px,4vw,72px)}
.wk-rel h2{margin-bottom:28px}
.wk-rel .prac{border-top:1px solid var(--ink)}
.wk-rel .ir:first-of-type{border-top:1px solid var(--ink)}
.wk-rel .side .mono{margin-bottom:16px}
.wk-rel .side + .side{margin-top:48px}
.wk-pn{grid-column:1/-1;margin-top:clamp(72px,8vw,128px);display:grid;grid-template-columns:repeat(2,minmax(0,1fr));border-top:1px solid var(--ink)}
.wk-pn a{display:block;padding:32px 0 34px;text-decoration:none;color:inherit;border-bottom:1px solid var(--rule)}
.wk-pn a + a{border-left:1px solid var(--rule);padding-left:clamp(20px,3vw,48px);text-align:right}
.wk-pn a:first-child{padding-right:clamp(20px,3vw,48px)}
.wk-pn .mono{display:flex;align-items:center;gap:10px}
.wk-pn a + a .mono{justify-content:flex-end}
.wk-pn .mono svg{width:14px;height:14px;transition:transform .5s var(--ease)}
.wk-pn a:first-child .mono svg{transform:scaleX(-1)}
.wk-pn a:first-child:hover .mono svg{transform:scaleX(-1) translateX(5px)}
.wk-pn a + a:hover .mono svg{transform:translateX(5px)}
.wk-pn h3{margin-top:16px;font:700 clamp(24px,2.4vw,36px)/1.12 var(--display);letter-spacing:-.016em;transition:color .3s}
.wk-pn a:hover h3,.wk-pn a:focus-visible h3{color:var(--copper)}
.wk-pn p{margin-top:10px;font-size:14.5px;color:var(--ink-2)}

/* ---- closing CTA without a form ---- */
.wk-close .close-l{grid-column:1/7}
.wk-close .close-l .cta{display:flex;flex-wrap:wrap;gap:16px;margin-top:36px}
.wk-close-r{grid-column:8/13;align-self:end}
.wk-close-r .next{margin-top:0}

/* ---- responsive ---- */
@media (max-width:1080px){
  .wk-row{grid-template-columns:40px minmax(0,1fr) minmax(0,1.3fr)}
  .wk-row .wk-figs{grid-column:2/-1;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));column-gap:24px}
  .wk-row .wk-figs > div{border-bottom:0}
}
@media (max-width:900px){
  .wk-hero h1.d2{grid-column:1/-1}
  .wk-hfigs{grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
  .wk-feat{grid-template-columns:minmax(0,1fr)}
  .wk-feat-ph{aspect-ratio:16/10;order:-1}
  .wk-row{grid-template-columns:minmax(0,1fr);gap:20px}
  .wk-row .ix{padding-top:0}
  .wk-row .ph-fig{aspect-ratio:16/9}
  .wk-row .wk-figs{grid-column:1/-1}
  .wk-further{grid-template-columns:1fr}
  .wk-further .cm{grid-template-columns:1fr;gap:12px}
  .wk-method{grid-template-columns:1fr;gap:16px}
  .wk-toc,.wk-main{grid-column:1/-1}
  .wk-toc .sticky{position:static}
  .wk-main{margin-top:64px}
  .wk-b{grid-template-columns:1fr}
  .wk-arch-head{grid-column:1/-1}
  .wk-fig .plate-in{overflow-x:auto;overscroll-behavior-x:contain;scrollbar-width:thin;scrollbar-color:rgba(219,150,99,.5) transparent}
  .wk-fig .plate-in svg{width:900px;max-width:none}
  .wk-scr-wrap{grid-template-columns:minmax(0,1fr)}
  .wk-hint{display:block}
  .wk-crumb{margin:0;padding:22px 0 20px}
  .wk-rel{grid-template-columns:minmax(0,1fr)}
  .wk-close .close-l,.wk-close-r{grid-column:1/-1}
  .wk-close-r{margin-top:56px}
}
@media (max-width:640px){
  .wk-hfigs{grid-template-columns:1fr;gap:0;padding-top:8px}
  .wk-hfigs > div{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);gap:16px;align-items:baseline;padding:18px 0;border-bottom:1px solid var(--rule-d)}
  .wk-hfigs > div:last-child{border-bottom:0}
  .wk-hfigs span{margin-top:0}
  .wk-hfigs .num{font-size:40px}
  .wk-row .wk-figs{grid-template-columns:1fr}
  .wk-feat .wk-feat-figs{grid-template-columns:1fr}
  .wk-feat .wk-feat-figs > div{padding:18px 0;border-bottom:1px solid var(--rule)}
  .wk-row .wk-figs > div{border-bottom:1px solid var(--rule)}
  .wk-sh{grid-template-columns:1fr;gap:10px}
  .wk-probs li{grid-template-columns:36px minmax(0,1fr)}
  .wk-cs{grid-template-columns:1fr}
  .wk-cs-l{border-right:0;border-bottom:1px solid var(--rule)}
  .wk-phones{grid-template-columns:1fr;max-width:340px}
  .wk-phones .wk-ph + .wk-ph{display:none}
  .wk-res thead{display:none}
  .wk-res tr{display:grid;grid-template-columns:1fr;padding:18px 0;border-bottom:1px solid var(--rule)}
  .wk-res th,.wk-res td,.wk-res tbody th,.wk-res .v{padding:0;border:0;width:auto}
  .wk-res .v{margin:10px 0 8px}
  .wk-stack div{grid-template-columns:1fr;gap:10px}
  .wk-pn{grid-template-columns:1fr}
  .wk-pn a + a{border-left:0;padding-left:0;text-align:left}
  .wk-pn a + a .mono{justify-content:flex-start}
  .wk-pn a:first-child{padding-right:0}
  .wk-close .close-l .cta .btn{width:100%;justify-content:space-between}
}