:root{--ink:#102027;--muted:#61727a;--paper:#f6f5f0;--white:#fffefa;--line:#d7ddd9;--lime:#d8f36b;--orange:#ff7448;--max:1100px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:var(--paper);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.62}a{color:inherit}.wrap{width:min(calc(100% - 48px),var(--max));margin:auto}.site-header{border-bottom:1px solid var(--line);background:rgba(246,245,240,.94);position:sticky;top:0;z-index:5;backdrop-filter:blur(12px)}.nav{height:70px;display:flex;justify-content:space-between;align-items:center}.brand{text-decoration:none;font-weight:800;letter-spacing:-.04em}.back{color:var(--muted);font-size:.87rem;font-weight:700;text-decoration:none}.back:hover{text-decoration:underline}.hero{padding:68px 0 58px}.crumb{margin:0 0 22px;color:var(--muted);font-size:.79rem;font-weight:800;text-transform:uppercase;letter-spacing:.12em}.hero-grid{display:grid;grid-template-columns:1fr .86fr;gap:55px;align-items:end}.hero h1{max-width:700px;margin:0 0 20px;font-size:clamp(3rem,6.4vw,5.7rem);line-height:.94;letter-spacing:-.07em}.lead{max-width:650px;color:#405359;font-size:1.15rem}.meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:27px}.meta span{padding:6px 10px;border:1px solid var(--line);border-radius:999px;color:var(--muted);font-size:.74rem;font-weight:800}.hero-image{width:100%;aspect-ratio:1.2;object-fit:contain}.hero-image.product{object-fit:cover}.section{padding:74px 0;border-top:1px solid var(--line)}.section h2{margin:0 0 22px;font-size:clamp(2rem,4vw,3.4rem);line-height:1;letter-spacing:-.06em}.prose{max-width:760px}.prose p:last-child{margin-bottom:0}.two-col{display:grid;grid-template-columns:.82fr 1.18fr;gap:70px}.side-label{margin:7px 0 0;color:var(--muted);font-size:.74rem;font-weight:800;letter-spacing:.13em;text-transform:uppercase}.role{margin:0;padding:0;list-style:none}.role li{padding:12px 0 12px 28px;border-top:1px solid var(--line);position:relative}.role li::before{content:"↗";position:absolute;left:0;color:var(--orange);font-weight:800}.diagram{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:28px}.node{min-height:96px;padding:16px;background:var(--white);border:1px solid var(--line);font-size:.83rem;font-weight:700}.node small{display:block;margin-top:7px;color:var(--muted);font-size:.74rem;font-weight:500}.node.accent{background:var(--lime)}.challenge{padding:32px 0;border-top:1px solid var(--line)}.challenge:first-of-type{margin-top:8px}.challenge h3{margin:0 0 19px;font-size:1.45rem;line-height:1.1;letter-spacing:-.04em}.challenge-grid{display:grid;grid-template-columns:150px 1fr;gap:22px;margin-top:13px}.challenge-grid strong{color:#45635f;font-size:.78rem;letter-spacing:.11em;text-transform:uppercase}.challenge-grid p{margin:0}.note{padding:19px 22px;margin-top:22px;background:#e8eee9;border-left:4px solid #719187;color:#3d5352;font-size:.93rem}.outcome{background:var(--ink);color:var(--white)}.outcome .side-label{color:#afc1bc}.outcome p{max-width:760px;color:#d7e1de}.facts{display:flex;flex-wrap:wrap;gap:9px;margin:0;padding:0;list-style:none}.facts li{padding:8px 11px;border:1px solid var(--line);border-radius:999px;color:var(--muted);font-size:.8rem;font-weight:700}.footer{padding:30px 0;background:var(--ink);color:#b7c5c2;font-size:.8rem}.footer .wrap{display:flex;justify-content:space-between;gap:20px}@media(max-width:720px){.wrap{width:min(calc(100% - 32px),var(--max))}.hero{padding:45px 0}.hero-grid,.two-col{grid-template-columns:1fr;gap:30px}.hero-image{max-height:330px}.section{padding:58px 0}.diagram{grid-template-columns:1fr}.challenge-grid{grid-template-columns:1fr;gap:5px}.footer .wrap{display:block}.footer span+span{display:block;margin-top:5px}}