:root{
  --paper:#fff;--paper-2:#f5f5f7;--ink:#141418;--ink-soft:#5b5b64;--line:#d5d5dd;
  --surface:#fff;--inverse:#141418;--inverse-ink:#fff;
  --accent:#087f70;--maxw:1240px;--gut:clamp(20px,4vw,52px);
  --font:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --mono:"JetBrains Mono","SFMono-Regular",Consolas,monospace
}
body.night{
  --paper:#101014;--paper-2:#1a1a20;--ink:#ededf0;--ink-soft:#b8b8c0;--line:#3b3b44;
  --surface:#15151a;--inverse:#08080b;--inverse-ink:#fff;--accent:#5ee2c8;
  color-scheme:dark
}
*{box-sizing:border-box}
html.theme-dark{background:#101014}
html{scroll-behavior:smooth;scroll-padding-top:70px}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--font);font-size:16px;line-height:1.55;-webkit-font-smoothing:antialiased;transition:background-color .25s ease,color .25s ease}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding-left:var(--gut);padding-right:var(--gut)}
.skip-link{position:fixed;left:16px;top:-60px;z-index:100;background:var(--inverse);color:var(--inverse-ink);padding:10px 14px;font-family:var(--mono)}
.skip-link:focus{top:12px}
.topbar{border-bottom:1px solid var(--line);background:var(--paper)}
.topbar-inner,.nav-inner,.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:24px}
.topbar-inner{min-height:68px}
.brand{font-weight:700;font-size:16px}
.back{font-family:var(--mono);font-size:11px;letter-spacing:.07em;text-transform:uppercase;text-decoration:underline;text-underline-offset:4px}
.section-nav{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
body.night .section-nav{background:rgba(16,16,20,.94)}
.nav-inner{min-height:52px;justify-content:flex-start}
.nav-back{flex:none;color:var(--ink-soft);font-family:var(--mono);font-size:11px;font-weight:600;letter-spacing:.07em;text-transform:uppercase;white-space:nowrap}
.nav-back:hover{color:var(--accent)}
.nav-brand{flex:none;color:var(--accent);font-size:14px;font-weight:600}
.nav-links{display:flex;gap:2px;overflow-x:auto;scrollbar-width:none}
.nav-links::-webkit-scrollbar{display:none}
.nav-links a{flex:none;padding:17px 11px 14px;border-bottom:2px solid transparent;color:var(--ink-soft);font-family:var(--mono);font-size:11px;letter-spacing:.07em;text-transform:uppercase}
.nav-links a:hover{color:var(--ink)}
.nav-links a.on{border-color:var(--accent);color:var(--ink)}
.theme-toggle{width:44px;height:44px;flex:0 0 44px;margin-left:auto;border:1px solid transparent;background:transparent;color:var(--ink-soft);display:flex;align-items:center;justify-content:center;cursor:pointer}
.theme-toggle:hover{color:var(--ink);background:var(--paper-2)}
.theme-toggle:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
.theme-toggle svg{width:20px;height:20px}
.theme-toggle .icon-sun{display:none}
body.night .theme-toggle .icon-moon{display:none}
body.night .theme-toggle .icon-sun{display:block}
.hero{display:grid;grid-template-columns:minmax(0,1fr) minmax(250px,300px);gap:clamp(30px,5vw,70px);align-items:start;padding-top:clamp(54px,8vw,96px);padding-bottom:clamp(64px,9vw,112px)}
.eyebrow,.label{margin:0 0 22px;color:var(--accent);font-family:var(--mono);font-size:11px;font-weight:600;letter-spacing:.1em;text-transform:uppercase}
.kicker{margin:0 0 14px;color:var(--accent);font-size:20px;font-weight:700}
h1,h2,h3,h4,p{margin-top:0}
h1{max-width:16ch;margin-bottom:28px;font-size:clamp(38px,7vw,74px);font-weight:700;line-height:.98;letter-spacing:-.05em}
.lede{max-width:52ch;margin:0;color:var(--ink-soft);font-size:clamp(18px,2.4vw,23px);line-height:1.55}
.meta{display:grid;grid-template-columns:1fr;gap:20px;margin:8px 0 0;padding-left:clamp(20px,2.4vw,30px);border-left:1px solid var(--line)}
.meta div{padding-bottom:18px;border-bottom:1px solid var(--line)}
.meta dt{margin-bottom:7px;color:var(--ink-soft);font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase}
.meta dd{margin:0;font-size:15px;font-weight:500}
.case-section{padding-bottom:clamp(78px,10vw,132px)}
.case-section.band{background:var(--paper-2)}
.section-banner{margin-bottom:clamp(52px,7vw,86px);background:var(--inverse);color:var(--inverse-ink)}
.section-banner .wrap{display:flex;align-items:center;gap:18px;min-height:70px}
.section-banner span{color:var(--accent);font-family:var(--mono);font-size:14px;font-weight:600}
.section-banner h2{margin:0;font-size:17px;font-weight:600}
.section-grid{display:grid;grid-template-columns:minmax(240px,.82fr) minmax(0,1fr);gap:clamp(46px,8vw,120px)}
.section-head{max-width:820px;margin-bottom:44px}
.section-head>p:last-child{max-width:60ch;color:var(--ink-soft);font-size:18px}
h3{margin-bottom:28px;font-size:clamp(32px,4.5vw,58px);font-weight:700;line-height:1.05;letter-spacing:-.045em}
h4{margin-bottom:12px;font-size:21px;line-height:1.2}
.prose{max-width:690px;color:var(--ink-soft);font-size:18px}
.prose p+p{margin-top:24px}
.industry{margin-top:clamp(66px,9vw,110px);padding-top:40px;border-top:1px solid var(--line)}
.industry-head{max-width:760px;margin-bottom:32px}
.industry-grid{display:grid;grid-template-columns:repeat(5,1fr);border:1px solid var(--line)}
.industry-grid article{min-width:0;padding:24px 20px;border-right:1px solid var(--line)}
.industry-grid article:last-child{border-right:0}
.industry-grid strong{display:block;margin-bottom:16px;color:var(--accent);font-size:clamp(25px,3vw,38px);line-height:1}
.industry-grid p{margin-bottom:22px;color:var(--ink-soft);font-size:14px}
.industry-grid cite{font-family:var(--mono);font-size:10px;font-style:normal;letter-spacing:.05em;text-transform:uppercase}
.approach-grid,.build-grid,.failure-grid{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--line)}
.approach-grid article,.build-grid article,.failure-grid article{padding:30px;border-right:1px solid var(--line);background:var(--surface)}
.approach-grid article:last-child,.build-grid article:last-child,.failure-grid article:last-child{border-right:0}
.approach-grid p:last-child,.build-grid p:last-child,.failure-grid p{margin:0;color:var(--ink-soft)}
.method,.callout{margin-top:30px;padding:24px 28px;border-left:4px solid var(--accent);background:var(--surface)}
.method .label{margin-bottom:10px}
.method p:last-child,.callout{margin-bottom:0}
.evidence-figure{margin:clamp(48px,7vw,78px) 0 0;border:1px solid var(--line);background:var(--surface)}
.evidence-figure img{width:100%;height:auto}
.evidence-figure figcaption{padding:13px 15px;border-top:1px solid var(--line);color:var(--ink-soft);font-family:var(--mono);font-size:11.5px;line-height:1.55;letter-spacing:.02em}
.failure-grid span{display:block;margin-bottom:24px;color:var(--accent);font-family:var(--mono);font-size:12px}
.callout{background:var(--paper);font-weight:600}
footer{background:var(--inverse);color:var(--inverse-ink)}
.footer-inner{min-height:130px;font-family:var(--mono);font-size:11px;letter-spacing:.06em;text-transform:uppercase}
@media(max-width:980px){
  .industry-grid{grid-template-columns:repeat(2,1fr)}
  .industry-grid article{border-bottom:1px solid var(--line)}
  .industry-grid article:nth-child(2n){border-right:0}
  .industry-grid article:last-child{border-bottom:0}
}
@media(max-width:900px){
  .hero{grid-template-columns:1fr}
  .meta{grid-template-columns:repeat(2,1fr);padding-left:0;border-left:0}
}
@media(max-width:720px){
  .topbar{display:none}
  .nav-inner{display:block;padding-top:10px}
  .nav-brand{display:block}
  .nav-links{margin-right:calc(var(--gut) * -1)}
  .nav-links a{padding-top:11px;padding-bottom:10px}
  .hero{gap:38px;padding-top:54px}
  .meta{grid-template-columns:1fr}
  .section-grid{grid-template-columns:1fr;gap:24px}
  .approach-grid,.build-grid,.failure-grid,.industry-grid{grid-template-columns:1fr}
  .approach-grid article,.build-grid article,.failure-grid article,.industry-grid article{border-right:0;border-bottom:1px solid var(--line)}
  .approach-grid article:last-child,.build-grid article:last-child,.failure-grid article:last-child,.industry-grid article:last-child{border-bottom:0}
  .footer-inner{align-items:flex-start;flex-direction:column;justify-content:center}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
}