/* case.css — shared system for case-study detail pages.
   Tokens mirror index.html; change once, all four pages follow. */
@font-face{font-family:'Clash Display';src:url('fonts/clash-600.woff2') format('woff2');font-weight:600;font-display:swap}
@font-face{font-family:'Clash Display';src:url('fonts/clash-700.woff2') format('woff2');font-weight:700;font-display:swap}
@font-face{font-family:'Satoshi';src:url('fonts/satoshi-400.woff2') format('woff2');font-weight:400;font-display:swap}
@font-face{font-family:'Satoshi';src:url('fonts/satoshi-500.woff2') format('woff2');font-weight:500;font-display:swap}
@font-face{font-family:'Satoshi';src:url('fonts/satoshi-700.woff2') format('woff2');font-weight:700;font-display:swap}
:root{
  --ink:#0A0A0E; --ink-2:#131318; --paper:#F2EFE7; --paper-2:#E9E4D8;
  --accent:#FF4D2E; --accent-deep:#C22F0E; --wire:#4A4E60; --mid:#8A8FA0;
  --t2:rgba(10,10,14,.62); --t1:rgba(10,10,14,.8);
  --display:'Clash Display',sans-serif; --body:'Satoshi',sans-serif; --mono:'JetBrains Mono',monospace;
  --margin:32px;
}
@media(max-width:1023px){:root{--margin:24px}}
@media(max-width:767px){:root{--margin:16px}}
*{margin:0;padding:0;box-sizing:border-box}
body{background:var(--paper);color:var(--ink);font-family:var(--body);font-size:17.5px;line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden}
::selection{background:var(--accent);color:var(--ink)}
a{color:inherit;text-decoration:none}
.mono{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase}

/* header — light over the dark hero, flips on paper */
header{position:fixed;inset:0 0 auto 0;z-index:60;display:flex;align-items:center;justify-content:space-between;
  padding:20px var(--margin);color:var(--paper);transition:color .5s}
header::before{content:'';position:absolute;inset:0;z-index:-1;pointer-events:none;
  background:linear-gradient(180deg,rgba(10,10,14,.8) 40%,rgba(10,10,14,0));transition:opacity .5s}
header.on-light::before{background:linear-gradient(180deg,rgba(242,239,231,.94) 55%,rgba(242,239,231,0))}
header.on-light{color:var(--ink)}
.logo{font-family:var(--display);font-weight:700;font-size:19px}
.logo em{color:var(--accent);font-style:normal}
.readout{display:flex;align-items:center;gap:14px}
.readout .bar{width:150px;height:3px;border-radius:99px;position:relative;overflow:hidden}
.readout .bar::before{content:'';position:absolute;inset:0;background:currentColor;opacity:.22}
.readout .bar i{position:absolute;left:0;top:0;height:100%;border-radius:99px;background:var(--accent);width:0%}
.hd-cta{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;
  border:1px solid currentColor;border-radius:99px;padding:9px 18px;opacity:.9;transition:.25s}
.hd-cta:hover{background:var(--accent);border-color:var(--accent);color:var(--ink);opacity:1}
@media(max-width:767px){.readout{display:none}}

/* hero — the ink world */
.hero{background:var(--ink);color:var(--paper);padding:22vh var(--margin) 90px}
.hero .inner{max-width:1200px;margin:0 auto}
.hero .kick{font-family:var(--mono);font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--accent)}
.hero h1{font-family:var(--display);font-weight:700;font-size:clamp(40px,7vw,96px);line-height:1.0;letter-spacing:-.015em;margin:18px 0 22px;max-width:14ch}
.hero .sub{font-size:clamp(17px,1.6vw,22px);color:var(--mid);max-width:56ch}
.hero .meta{margin-top:34px;font-family:var(--mono);font-size:11px;letter-spacing:.08em;color:var(--mid);line-height:2}
.statband{border-top:1px solid #23242e;margin-top:44px;padding-top:34px;display:grid;
  grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:28px}
.statband .s b{font-family:var(--display);font-weight:600;font-size:clamp(30px,3.4vw,50px);line-height:1;display:block}
.statband .s b em{color:var(--accent);font-style:normal}
.statband .s span{font-family:var(--mono);font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--mid)}

/* melt into paper — long multi-stop ramp to avoid banding */
.melt{height:280px;background:linear-gradient(180deg,
  #0A0A0E 0%,#121016 10%,#1c1920 20%,#2a2529 30%,#3c3634 40%,#524a42 50%,
  #6b6153 60%,#877b66 70%,#a4987e 79%,#c2b797 87%,#dcd3b6 94%,#F2EFE7 100%)}

/* article body */
article{max-width:800px;margin:0 auto;padding:70px var(--margin) 40px}
.sec{margin-bottom:74px}
.sec .eyebrow{display:flex;align-items:baseline;gap:14px;margin-bottom:22px}
.sec .eyebrow i{font-family:var(--mono);font-style:normal;font-size:13px;font-weight:500;color:var(--accent-deep);letter-spacing:.14em}
.sec h2{font-family:var(--display);font-weight:600;font-size:clamp(26px,3.4vw,40px);letter-spacing:-.01em;line-height:1.05}
.sec p{color:var(--t1);margin-bottom:18px}
.sec p b{color:var(--ink)}
.pull{border-left:3px solid var(--accent);padding:6px 0 6px 24px;margin:30px 0;
  font-family:var(--display);font-weight:600;font-size:clamp(20px,2.4vw,28px);line-height:1.25;color:var(--ink)}
.decision{border:1px solid rgba(10,10,14,.16);border-radius:14px;padding:26px 28px;margin-bottom:22px;background:rgba(255,255,255,.35)}
.decision .d-kick{font-family:var(--mono);font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:var(--accent-deep);margin-bottom:10px}
.decision h3{font-family:var(--display);font-weight:600;font-size:clamp(19px,2vw,24px);line-height:1.15;margin-bottom:12px}
.decision p{color:var(--t1);margin-bottom:12px}
.decision p:last-child{margin-bottom:0}
.decision .trade{font-size:15.5px;color:var(--t2);border-top:1px solid rgba(10,10,14,.12);padding-top:12px;margin-top:4px}
.decision .trade b{color:var(--accent-deep);font-family:var(--mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;font-weight:500;margin-right:8px}
.quote{margin:34px 0;padding:28px 30px;border-radius:14px;background:var(--ink);color:var(--paper)}
.quote p{font-family:var(--mono);font-size:13.5px;line-height:1.8;color:var(--paper);margin:0}
.quote span{display:block;margin-top:14px;font-family:var(--mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--mid)}
.outgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:20px;margin:30px 0 8px}
.outgrid .o{border-top:2px solid var(--accent-deep);padding-top:14px}
.outgrid .o b{font-family:var(--display);font-weight:600;font-size:clamp(30px,3.6vw,48px);line-height:1;display:block;color:var(--accent-deep)}
.outgrid .o span{font-family:var(--mono);font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--t2)}
.close-note{border-top:1px solid rgba(10,10,14,.2);padding-top:34px}

/* reveal on scroll */
.rv{opacity:0;transform:translateY(16px);transition:opacity .7s ease,transform .7s ease}
.rv.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.rv{opacity:1;transform:none;transition:none}}

/* prev / next case nav */
.casenav{border-top:1px solid rgba(10,10,14,.2);margin-top:40px}
.casenav .wrapnav{max-width:1200px;margin:0 auto;padding:0 var(--margin);display:grid;grid-template-columns:1fr 1fr}
.casenav a{padding:44px 0;display:flex;flex-direction:column;gap:8px}
.casenav a.next{text-align:right;border-left:1px solid rgba(10,10,14,.2);padding-left:24px}
.casenav a.prev{padding-right:24px}
.casenav .lbl{font-family:var(--mono);font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:var(--t2)}
.casenav .ttl{font-family:var(--display);font-weight:600;font-size:clamp(19px,2.4vw,28px);transition:color .25s}
.casenav a:hover .ttl{color:var(--accent-deep)}
.allwork{text-align:center;padding:26px 0;border-top:1px solid rgba(10,10,14,.12)}
.allwork a{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--t2)}
.allwork a:hover{color:var(--accent-deep)}

footer{border-top:1px solid rgba(10,10,14,.18)}
footer .fwrap{max-width:1200px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;padding:30px var(--margin)}
footer .mono{color:var(--t2)}
.socials{display:flex;gap:18px}
.socials a{opacity:.75;transition:.25s}.socials a:hover{opacity:1;color:var(--accent-deep)}
.socials svg{width:20px;height:20px;fill:currentColor}
.socials svg[fill="none"]{fill:none;stroke:currentColor}

/* figures — redline-captioned artifacts */
figure.fig{margin:34px 0;border:1px solid rgba(10,10,14,.15);border-radius:14px;overflow:hidden;background:#fff}
figure.fig img{display:block;width:100%;height:auto}
figure.fig.crop img{max-height:620px;object-fit:cover;object-position:top}
figure.fig.portrait{max-width:520px;margin-inline:auto}
figcaption{font-family:var(--mono);font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--t2);
  padding:12px 16px;border-top:1px solid rgba(10,10,14,.12);background:var(--paper);display:flex;gap:12px;line-height:1.7;text-align:left}
figcaption b{color:var(--accent-deep);font-weight:500;flex:none}
.figrow{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:34px 0;align-items:stretch}
.figrow figure.fig{margin:0;display:flex;flex-direction:column}
.figrow figure.fig img{flex:1;min-height:0;object-fit:cover;object-position:top}
.figrow figcaption{margin-top:auto}
.strip4{display:grid;grid-template-columns:repeat(4,1fr);gap:2px;background:rgba(10,10,14,.12)}
.strip4 img{display:block;width:100%;height:auto}
@media(max-width:767px){.figrow{grid-template-columns:1fr}.strip4{grid-template-columns:1fr 1fr}}

/* lightbox */
figure.fig img{cursor:zoom-in}
.lb{position:fixed;inset:0;z-index:100;background:rgba(10,10,14,.93);display:none;align-items:center;justify-content:center;padding:3vh 3vw;cursor:zoom-out}
.lb.open{display:flex}
.lb img{max-width:100%;max-height:100%;border-radius:8px;box-shadow:0 30px 90px rgba(0,0,0,.6)}