@font-face{font-family:Steinhart;src:url('__OBOR_USE_CASE_ASSET_BASE__media/6a44eec1ed1af2c4c403df88_BTSteinhart-Bold-subset.woff2') format('woff2');font-weight:700;font-display:swap}@font-face{font-family:Steinhart;src:url('__OBOR_USE_CASE_ASSET_BASE__media/6a44eec1ed1af2c4c403df89_BTSteinhart-Medium-subset.woff2') format('woff2');font-weight:500;font-display:swap}@font-face{font-family:HelveticaLocal;src:url('__OBOR_USE_CASE_ASSET_BASE__media/6a44eec1ed1af2c4c403df8a_HelveticaNeueRoman-subset.woff2') format('woff2');font-weight:400;font-display:swap}@font-face{font-family:SteinMono;src:url('__OBOR_USE_CASE_ASSET_BASE__media/6a44eec1ed1af2c4c403df8c_BTSteinhart-RegularMono-subset.woff2') format('woff2');font-weight:400;font-display:swap}
:root{--ink:#111;--paper:#f3f3f1;--blue:#2345ff;--line:#ddd;--gutter:2.35vw;--heading:Steinhart,Arial,sans-serif;--body:HelveticaLocal,Arial,sans-serif;--mono:SteinMono,monospace}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0;color:var(--ink);background:#fff;font-family:var(--body);font-size:16px;line-height:1.42}body.menu-open{overflow:hidden}a{color:inherit;text-decoration:none}button{font:inherit;color:inherit;cursor:pointer}button,a,summary{-webkit-tap-highlight-color:transparent}button{border:0}img{max-width:100%;display:block}h1,h2,h3,p{margin:0}h1,h2,h3{font-family:var(--heading);font-weight:700;line-height:1.05}h2{font-size:clamp(38px,4.17vw,76px);letter-spacing:-.035em}h3{font-size:25px;letter-spacing:-.025em}p{max-width:65ch}.mono{font-family:var(--mono);font-size:11px;line-height:1.4;font-weight:400;letter-spacing:.015em}.soft{color:#858583}.pill{display:inline-flex;align-items:center;justify-content:center;gap:28px;border:1px solid currentColor;border-radius:100px;padding:14px 23px;font-family:var(--mono);font-size:11px;line-height:1.2;transition:background .2s,color .2s,border-color .2s}.pill:hover{background:var(--blue);color:#fff;border-color:var(--blue)}.pill span{font-size:17px}.round-link{width:46px;height:46px;display:grid;place-items:center;border:1px solid #ffffff60;border-radius:50%;font-size:23px;transition:background .2s,transform .2s}.round-link:hover{background:var(--blue);transform:translateY(3px)}.dark-round{border-color:#aaa}.status-dot{width:6px;height:6px;border-radius:50%;background:currentColor;display:inline-block;margin-right:9px}.skip-link{position:fixed;top:-100px;left:20px;z-index:1000;padding:14px;background:var(--blue);color:#fff}.skip-link:focus{top:12px}:focus-visible{outline:3px solid #7489ff;outline-offset:5px}[hidden]{display:none!important}
.site-header{position:absolute;inset:0 0 auto;z-index:20;color:#fff}.utility{height:30px;display:flex;justify-content:space-between;align-items:center;padding:0 var(--gutter);border-bottom:1px solid #ffffff30;font-size:9px;color:#ffffffc7}.utility a{display:flex;gap:24px}.nav-main{height:78px;padding:0 var(--gutter);display:grid;grid-template-columns:26% 1fr auto;align-items:center}.brand-lockup{display:inline-flex;align-items:center;width:max-content;line-height:0}.brand-logo{display:block;width:clamp(150px,14vw,220px);height:auto;max-height:24px;object-fit:contain;object-position:left center}.menu-wrap{position:relative;width:max-content}.menu-toggle{background:transparent;padding:16px 14px;display:flex;align-items:center;gap:10px;min-height:44px;position:relative;z-index:2}.menu-dots{width:17px;height:4px;background:radial-gradient(circle,#fff 1.5px,transparent 2px) 0 0/6px 4px}.menu-toggle[aria-expanded=true] .menu-dots{height:17px;background-size:6px 6px}.header-cta{border-color:#ffffff60;min-width:154px;padding-block:11px}#main-menu{position:absolute;top:-8px;left:-8px;width:320px;background:#111;padding:78px 35px 32px;box-shadow:0 12px 50px #0003}#main-menu>a{display:block;font-family:var(--heading);font-size:24px;text-transform:uppercase;padding:10px 0;color:#aaa}#main-menu>a:hover{color:#fff}.menu-note{border-top:1px solid #333;padding-top:30px;margin-top:30px;color:#aaa}
.hero{position:relative;height:100svh;min-height:690px;background:#1d2830;color:#fff;overflow:hidden}.hero-film,.hero-shade{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}.hero-shade{background:linear-gradient(180deg,#06132055 0%,#0715221c 32%,#0009 100%)}.hero-content{position:absolute;bottom:100px;left:var(--gutter);right:var(--gutter);display:grid;grid-template-columns:70% 30%}.eyebrow{grid-column:1/-1;margin-bottom:23px;color:#ffffffba}.hero h1{font-size:clamp(68px,7.05vw,130px);line-height:.98;letter-spacing:-.045em}.muted-title{color:#ffffff7a}.hero-aside{align-self:end;padding-left:18px;padding-bottom:5px}.hero-aside .mono{font-size:10px;color:#ffffffa6}.hero-aside p{font-size:17px;margin:15px 0 24px}.hero-bottom{position:absolute;bottom:0;left:0;right:0;height:52px;display:flex;align-items:center;border-top:1px solid #ffffff40}.ticker{overflow:hidden;flex:1;font-size:10px}.ticker>div{width:max-content;white-space:nowrap;animation:marquee 36s linear infinite}.ticker b{margin:0 35px;font-weight:400;color:#90a3ff}.film-toggle{height:100%;min-width:150px;border-left:1px solid #ffffff40;background:#1115;display:flex;align-items:center;justify-content:center;gap:16px;font-size:10px}.film-toggle:hover{background:#111}.is-paused .ticker>div{animation-play-state:paused}@keyframes marquee{to{transform:translateX(-50%)}}
.approach{padding:40px var(--gutter) 0}.section-kicker{display:flex;justify-content:space-between;color:#777}.center-intro{text-align:center;padding:96px 0 90px}.center-intro p{max-width:500px;margin:30px auto 0;color:#5b5b5b;font-size:16px;line-height:1.45}.approach-grid{max-width:1200px;margin:auto;display:grid;grid-template-columns:1fr 1fr;border-left:1px solid var(--line);border-top:1px solid var(--line)}.approach-grid>article{border-right:1px solid var(--line)}.feature-image{position:relative;padding:54px 54px 28px;border-bottom:1px solid var(--line)}.feature-image img{height:270px;width:100%;object-fit:cover;filter:saturate(.8)}.image-label{display:block;color:#777;font-size:9px;padding-top:16px}.cross{position:absolute;color:#aaa;font-family:var(--mono);font-size:14px}.c1{top:18px;left:18px}.c2{bottom:20px;right:18px}.feature-copy{padding:34px 54px 62px}.feature-copy h3{font-size:24px;margin-bottom:16px}.feature-copy p{font-size:15px;color:#666;line-height:1.4}.study-intro{background:var(--paper);display:grid;grid-template-columns:25% 1fr 48px;padding:100px var(--gutter) 115px;gap:2%}.study-intro>.mono{padding-top:10px}.count{margin-left:15px;color:#999}.study-intro h2{font-size:clamp(42px,5.2vw,86px)}.study-intro p{margin-top:28px;font-size:19px;max-width:470px}.study-intro .study-note{font-size:12px;line-height:1.5;color:#707070;max-width:480px;margin-top:22px}.study-intro .round-link{align-self:end}
.case-reader{background:#111;color:#fff;display:grid;grid-template-columns:22% 25% 1fr;gap:3%;padding:90px var(--gutter) 80px;position:relative}.case-index{position:sticky;top:calc(50vh - 160px);align-self:start}.index-label{font-size:10px;color:#818181;margin-bottom:15px}.case-index nav{display:flex;flex-direction:column;max-width:240px}.case-index a{font-family:var(--mono);font-size:10px;padding:13px 9px;border-bottom:1px solid #333;display:flex;align-items:center;gap:9px;color:#aaa;transition:background .18s,color .18s}.case-index a span{color:#686868;font-size:9px}.case-index a b{font-size:15px;margin-left:auto;font-weight:400;opacity:0}.case-index a:hover,.case-index a[aria-current=true]{background:#fff;color:#111}.case-index a[aria-current=true] b{opacity:1}.index-foot{font-size:9px;color:#717171;margin-top:42px;line-height:1.6}.case-visual{position:sticky;top:calc(50vh - 185px);align-self:start;min-width:0;padding-right:28px}.visual-frame{position:relative;z-index:1}.visual-frame img{width:100%;height:335px;object-fit:cover;transition:opacity .18s;filter:saturate(.7)}.visual-meta{display:flex;justify-content:space-between;font-size:9px;padding:13px 0;color:#888}.ruler{position:absolute;top:-90px;bottom:-90px;left:44%;width:14px;background:repeating-linear-gradient(to bottom,#444 0 1px,transparent 1px 10px);opacity:.65}.case-articles{min-width:0}.case{padding:30px 0 58px;border-top:1px solid #444;scroll-margin-top:38px}.case+.case{margin-top:12px}.case-top{display:flex;justify-content:space-between;font-size:9px;color:#777;margin-bottom:22px}.case h3{font-size:clamp(26px,2.15vw,37px)}.case-toggle{font:inherit;font-weight:700;letter-spacing:inherit;line-height:inherit;background:transparent;display:flex;text-align:left;justify-content:space-between;align-items:flex-start;gap:20px;padding:0;width:100%;cursor:default}.toggle-mark{display:none}.case-subtitle{font-size:18px;color:#e4e4e4;margin-top:15px;line-height:1.3}.case-content>p{color:#a4a4a4;font-size:15px;margin-top:38px;max-width:52ch}.case-check{margin-top:28px}.case-check>.mono{font-size:9px;color:#d8d8d8}.case-check p{font-size:15px;color:#a4a4a4;margin-top:10px;line-height:1.5;max-width:52ch}.case details{margin:28px 0;border-top:1px solid #333;border-bottom:1px solid #333}.case summary{list-style:none;cursor:pointer;font-size:13px;padding:16px 0;display:flex;justify-content:space-between;gap:20px;color:#ddd}.case summary::-webkit-details-marker{display:none}.case summary span{font-family:var(--mono);font-size:18px}.case details[open] summary span{transform:rotate(45deg)}.case details>p{color:#aaa;font-size:14px;padding:0 10px 22px 0}.case-cta{border-color:#626262;font-size:10px;padding:12px 20px}.mobile-case-image{display:none}
.handover{background:var(--paper);padding:100px var(--gutter);display:grid;grid-template-columns:25% 1fr;gap:2%}.handover>.mono{padding-top:10px;font-size:10px}.handover-list{margin-top:50px}.handover-list>div{border-top:1px solid #ccc;display:grid;grid-template-columns:45px 1fr;gap:12px;padding:24px 0}.handover-list .mono{color:#888;padding-top:5px}.handover-list h3{font-size:23px}.handover-list p{grid-column:2;color:#666;font-size:15px}.contact{position:relative;overflow:hidden;background:#111;color:#fff;min-height:700px;display:grid;place-items:center;text-align:center;padding:100px 24px}.contact-inner{position:relative;z-index:1}.contact-inner>.mono{font-size:10px;color:#b1b1b1;margin-bottom:24px}.contact h2{font-size:clamp(55px,6vw,98px);line-height:.98}.contact h2 span{color:#7690ff}.contact p{color:#aaa;font-size:16px;margin:28px auto;line-height:1.5}.contact .selected-topic{color:#d3dbff;margin-top:0}.contact-link{border-color:#777}.contact-caption{display:block;color:#777;font-size:11px;margin-top:16px}.rings{position:absolute;inset:0;display:grid;place-items:center;pointer-events:none}.rings i{position:absolute;border:1px solid #ffffff0b;border-radius:50%;width:420px;height:420px}.rings i:nth-child(2){width:540px;height:540px}.rings i:nth-child(3){width:660px;height:660px}.rings i:nth-child(4){width:780px;height:780px}.rings i:nth-child(5){width:900px;height:900px}footer{padding:58px var(--gutter) 0}.footer-top{display:grid;grid-template-columns:27% 1fr 24%;gap:25px;padding-bottom:70px}.footer-top>p{font-family:var(--heading);font-size:32px;line-height:1.1;letter-spacing:-1px}.footer-top nav{display:grid;grid-template-columns:1fr 1fr;gap:15px;font-size:13px}.footer-top nav a:hover{color:var(--blue)}.footer-bottom{border-top:1px solid var(--line);padding:22px 0;display:flex;justify-content:space-between;color:#777;font-size:9px}
@media(min-width:1600px){.hero-content{bottom:115px}.case-reader{gap:4%;grid-template-columns:21% 24% 1fr}.case-content>p,.case-check p{font-size:17px}.case-index a{font-size:12px}}
@media(max-width:1000px){:root{--gutter:24px}.hero h1{font-size:8.5vw}.hero-aside{padding-left:0}.hero-aside p{font-size:15px}.nav-main{grid-template-columns:42% 1fr auto}.feature-image{padding:35px 28px 22px}.feature-image img{height:220px}.feature-copy{padding:28px 28px 46px}.case-reader{grid-template-columns:23% 26% 1fr;gap:3%;padding-top:60px}.case-visual{padding-right:0}.case-index a{font-size:9px;padding:13px 5px;gap:6px}.case-index a b{display:none}.visual-frame img{height:300px}.case-top{font-size:8px;gap:15px}.case h3{font-size:27px}.case-subtitle{font-size:16px}.case-content>p,.case-check p{font-size:14px}.case-cta{gap:10px;font-size:9px;padding:12px}.handover,.study-intro{grid-template-columns:24% 1fr}.study-intro>.round-link{display:none}.footer-top{grid-template-columns:1fr 1fr}.footer-top nav{grid-column:2}}
@media(max-width:700px){:root{--gutter:20px}.utility{height:31px;font-size:8px}.utility>span{display:none}.utility a{width:100%;justify-content:space-between}.nav-main{height:66px;display:flex;justify-content:space-between}.wordmark{font-size:23px}.header-cta{display:none}.menu-toggle{padding:14px 0 14px 14px;font-size:11px}#main-menu{right:-4px;left:auto;width:min(300px,calc(100vw - 40px));top:-2px;padding:70px 28px 28px}#main-menu>a{font-size:23px}.hero{min-height:680px;height:100svh;max-height:1100px}.hero-content{display:block;bottom:106px}.eyebrow{font-size:9px;margin-bottom:20px}.hero h1{font-size:clamp(34px,11.4vw,80px);line-height:1;letter-spacing:-.04em}.hero-aside{padding:0;margin-top:28px;display:flex;align-items:flex-end;justify-content:space-between;gap:15px}.hero-aside>.mono{display:none}.hero-aside p{font-size:14px;margin:0;color:#ddd}.hero-aside .round-link{width:37px;height:37px;flex-shrink:0}.hero-bottom{height:56px}.film-toggle{min-width:112px;font-size:8px;gap:9px}.ticker{font-size:8px}.hero-film{object-position:53% center}.approach{padding-top:28px}.section-kicker{font-size:8px}.section-kicker span:last-child{display:none}.center-intro{padding:64px 0 50px}.center-intro h2{font-size:clamp(30px,8.1vw,52px);letter-spacing:-.04em}.center-intro p{font-size:15px;margin-top:25px;max-width:340px}.approach-grid{grid-template-columns:1fr}.approach-grid>article+article{border-top:1px solid var(--line)}.feature-image{padding:30px 24px 20px}.feature-image img{height:220px}.feature-copy{padding:26px 24px 35px}.feature-copy h3{font-size:23px}.feature-copy p{font-size:14px}.image-label{font-size:8px}.study-intro{display:block;padding:55px var(--gutter) 60px}.study-intro>.mono{font-size:9px;margin-bottom:30px}.study-intro h2{font-size:clamp(40px,11vw,65px)}.study-intro p{font-size:18px;margin-top:24px}.study-intro .study-note{font-size:11px}.case-reader{display:block;padding:24px var(--gutter) 32px}.case-index,.case-visual{display:none}.case{padding:26px 0 30px;scroll-margin-top:12px}.case+.case{margin:0}.case-top{font-size:8px;margin-bottom:19px}.case h3{font-size:24px;line-height:1.08}.case-toggle{cursor:pointer}.toggle-mark{display:inline;flex-shrink:0;font-family:var(--mono);font-weight:400;font-size:22px;color:#aaa}.case-subtitle{font-size:15px;margin-top:13px;padding-right:28px}.case-content>p{margin-top:26px;font-size:15px;line-height:1.5}.case-check p{font-size:15px}.case-check>.mono{font-size:9px}.case details{margin:24px 0}.case summary{font-size:13px}.case-cta{width:100%;justify-content:space-between;font-size:10px;padding:15px 19px}.mobile-case-image{display:block;width:100%;height:230px;object-fit:cover;margin-top:28px;filter:saturate(.8)}.handover{display:block;padding:60px var(--gutter)}.handover>.mono{font-size:8px;margin-bottom:32px}.handover h2{font-size:clamp(33px,9vw,54px)}.handover-list{margin-top:35px}.handover-list>div{grid-template-columns:28px 1fr;gap:10px;padding:22px 0}.handover-list h3{font-size:20px}.handover-list p{font-size:14px}.contact{min-height:650px;padding:85px var(--gutter)}.contact h2{font-size:clamp(48px,13vw,80px)}.contact p{font-size:14px}.contact-inner>.mono{font-size:8px}.contact-link{font-size:10px;padding:16px 22px}.contact-caption{font-size:10px}.rings i{width:260px;height:260px}.rings i:nth-child(2){width:350px;height:350px}.rings i:nth-child(3){width:440px;height:440px}.rings i:nth-child(4){width:530px;height:530px}.rings i:nth-child(5){width:620px;height:620px}footer{padding:40px var(--gutter) 0}.footer-top{display:block;padding-bottom:40px}.footer-top>p{font-size:30px;margin:30px 0}.footer-top nav{gap:18px;font-size:13px;max-width:300px}.footer-bottom{flex-wrap:wrap;gap:18px;font-size:8px}.footer-bottom>span:nth-child(2){display:none}}
@media(max-height:550px) and (min-width:701px){.hero{min-height:570px}.hero h1{font-size:72px}.case-index{top:50px}.case-visual{top:60px}.visual-frame img{height:230px}.index-foot{display:none}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}}


.brand-lockup{display:inline-flex;align-items:center;width:max-content;color:currentColor;line-height:0}
.brand-logo{display:block;width:clamp(150px,14vw,220px);height:auto;max-height:24px;object-fit:contain;object-position:left center}
.footer-brand{align-self:start;color:currentColor}
.footer-brand .brand-logo{width:clamp(180px,18vw,285px);max-height:31px}
@media(max-width:700px){
  .brand-logo{width:clamp(142px,42vw,190px);max-height:20px}
  .footer-brand .brand-logo{width:clamp(165px,52vw,230px);max-height:25px}
}


.menu-toggle{z-index:52}
#main-menu{position:fixed;inset:0;z-index:50;width:auto;background:#080d0f;color:#f4f1e9;padding:clamp(110px,9vw,150px) var(--gutter) 26px;box-shadow:none;overflow:auto}
#main-menu a{color:inherit}
#main-menu a:hover{color:#e6bf5b}
.ledger-head{display:flex;justify-content:space-between;align-items:flex-start;border-bottom:1px solid #9b792d55;padding-bottom:25px;gap:24px}
.ledger-head strong{display:block;font-family:var(--heading);font-size:clamp(17px,1.6vw,24px);letter-spacing:.24em}
.ledger-head .mono{display:block;margin-top:6px;color:#9b792d;font-size:9px;letter-spacing:.12em}
.ledger-close{color:#f4f1e9;background:transparent;border:1px solid #9b792d88;padding:11px 17px;white-space:nowrap}
.ledger-close:hover{background:#9b792d;color:#080d0f}
.ledger-grid{display:grid;grid-template-columns:minmax(320px,38%) minmax(0,1fr);gap:clamp(30px,4vw,70px);min-height:calc(100% - 130px);padding-top:28px}
.ledger-list{display:flex;flex-direction:column;align-self:start}
.ledger-link{display:grid;grid-template-columns:28px 62px minmax(0,1fr) 16px;gap:12px;align-items:center;border-bottom:1px solid #ffffff16;padding:10px 4px;min-height:68px;transition:background .2s,padding .2s}
.ledger-link:hover,.ledger-link:focus-visible{background:#b1842c22;padding-left:12px;outline:none}
.ledger-link.is-featured{background:#b1842c16}
.ledger-num{color:#b1842c;font-size:9px}
.ledger-link img{width:62px;height:46px;object-fit:cover;border:1px solid #ffffff28;filter:saturate(.72)}
.ledger-copy strong{display:block;font-family:var(--heading);font-size:clamp(15px,1.45vw,23px);letter-spacing:.04em;line-height:1}
.ledger-copy small{display:block;margin-top:5px;color:#a6a7a2;font-family:var(--mono);font-size:8px;letter-spacing:.1em}
.ledger-arrow{color:#b1842c;font-size:16px}
.ledger-feature{position:relative;min-height:420px;align-self:stretch;border:1px solid #9b792d55;padding:clamp(24px,2.5vw,38px);overflow:hidden;background:#111820}
.ledger-feature:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,#0a0d0eec 0%,#0a0d0eaa 44%,#0a0d0e10 100%);pointer-events:none}
.ledger-feature img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.72}
.ledger-feature>*:not(img){position:relative;z-index:1}
.ledger-feature-meta,.ledger-feature-foot{color:#b1842c;font-size:8px;letter-spacing:.13em}
.ledger-feature h2{margin:28px 0 16px;font-size:clamp(34px,4.1vw,72px);line-height:.9;letter-spacing:-.035em;font-style:italic}
.ledger-feature p{max-width:34ch;color:#d0d0cb;font-size:14px}
.ledger-feature a{display:inline-block;margin-top:30px;color:#e6bf5b;font-size:10px;letter-spacing:.12em}
.ledger-feature-foot{position:absolute!important;bottom:22px;left:clamp(24px,2.5vw,38px);right:clamp(24px,2.5vw,38px);display:flex;justify-content:space-between;gap:15px}
.ledger-feature-foot span{color:#f4f1e9}
.ledger-foot{display:flex;justify-content:space-between;align-items:center;border-top:1px solid #9b792d55;padding-top:16px;margin-top:-42px;position:relative;z-index:2}
.ledger-foot a{border:1px solid #9b792d99;padding:11px 16px;color:#e6bf5b;font-size:9px}
.ledger-foot span{color:#b8b8b0;font-size:8px;letter-spacing:.13em}
@media(max-width:700px){#main-menu{padding:92px var(--gutter) 24px}.ledger-head{padding-bottom:18px}.ledger-head strong{font-size:16px}.ledger-head .mono{font-size:7px}.ledger-close{padding:9px 12px;font-size:8px}.ledger-grid{display:block;min-height:0;padding-top:18px}.ledger-link{grid-template-columns:22px 48px minmax(0,1fr) 12px;gap:9px;min-height:57px;padding:7px 2px}.ledger-link img{width:48px;height:36px}.ledger-copy strong{font-size:16px}.ledger-copy small{font-size:7px;margin-top:3px}.ledger-feature{display:none}.ledger-foot{margin-top:20px}.ledger-foot span{font-size:7px}.ledger-foot a{font-size:8px;padding:9px 11px}}

.guide-context-line{font-size:12px;line-height:1.6;letter-spacing:.04em;margin:18px 0 12px;overflow-wrap:anywhere;color:var(--blue,#244cff)}


.site-header .brand-logo{filter:brightness(0) invert(1)}
.footer-brand .brand-logo{filter:brightness(0) contrast(1.12)}
.footer-top>p{font-size:clamp(24px,2.1vw,28px);line-height:1.08;letter-spacing:-.7px}

@media(max-width:700px){
  .footer-top>p{font-size:24px;line-height:1.12}
}