/* Composition measured from Palantir's Chain Reaction, adapted to Zero One. */
html{scroll-padding-top:24px;scrollbar-gutter:stable}
.method-page{--ink:#111111;--dark:#202020;--muted:#666666;--chain-black:#111111;--chain-panel:#202020;--chain-white:#ffffff;--chain-gray:#aaaaaa;--chain-gap:5px;--chain-inset:50px;background:var(--chain-black);color:var(--chain-white);font-family:Simplon,Arial,sans-serif}
.chain-page{padding:50px 50px 0;overflow:clip}
.chain-page main>*+*,.chain-intro-grid,.chain-engine-grid,.chain-beliefs,.chain-slider,.chain-transfer-grid{margin-top:var(--chain-gap)}
.chain-hero{background:var(--chain-white);color:var(--chain-black);display:flex;flex-direction:column;align-items:center;gap:100px;padding:50px 0 75px}
.chain-topbar{display:flex;align-items:center;justify-content:space-between;width:100%;padding:0 50px;height:18px}
.chain-topbar>a{display:flex;align-items:center}.chain-topbar .chain-monogram{width:28px}
/* Original logo paths inherit the title colour; the trademark is omitted. */
.chain-monogram{display:block;overflow:hidden;aspect-ratio:530/338;flex:none}
.chain-monogram svg{display:block;width:100%;height:auto;fill:currentColor}
.chain-topbar button{border:0;background:none;padding:10px 0;font-size:12px;line-height:1;letter-spacing:.06em;text-transform:uppercase}
.chain-topbar button:hover{text-decoration:underline;text-underline-offset:4px}
.chain-hero-content{display:flex;flex-direction:column;align-items:center;gap:55px;text-align:center}
.chain-introducing,.chain-subtitle{font-size:26px;line-height:1.075;letter-spacing:-.025em}
.chain-introducing img{width:140px;height:auto;filter:brightness(0)}
.chain-hero h1{display:flex;align-items:center;justify-content:center;gap:26px;font-size:clamp(140px,12.5vw,180px);line-height:.723;letter-spacing:-.065em;font-weight:400;margin:0}
.chain-hero h1 .chain-monogram{width:clamp(170px,15.28vw,220px);margin:0 6px}
.chain-hero h1>span{display:block;animation:chain-title-in 800ms cubic-bezier(.22,1,.36,1) both}
.chain-hero h1>span:last-child{animation-delay:120ms}
.chain-down{display:block;width:20px;height:24px;color:var(--chain-black)}
.chain-down svg{display:block;transition:translate .3s}.chain-down:hover svg{translate:0 4px}
.chain-section-heading{background:var(--chain-panel);padding:112.5px 25px;text-align:center}
.chain-kicker{display:flex;align-items:center;justify-content:center;gap:8px;font-size:12px;line-height:1;letter-spacing:.045em;text-transform:uppercase;margin:0 0 30px}
.chain-kicker:before{content:'';width:8px;height:8px;background:currentColor;flex:none}
.chain-heading{font-size:58px;line-height:1.05;letter-spacing:-.03em;font-weight:400;margin:0 auto;text-wrap:balance}
.chain-gradient-text{background:linear-gradient(90deg,var(--chain-gray),var(--chain-white));background-clip:text;-webkit-background-clip:text;color:transparent}
.chain-intro-grid{display:grid;grid-template-columns:1fr 1fr;gap:var(--chain-gap)}
.chain-intro-image{aspect-ratio:1;position:relative;overflow:hidden;background:var(--chain-black)}
.chain-intro-image img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:50% 50%;filter:grayscale(1);display:block}
.chain-intro-copy{container-type:inline-size;min-width:0;background:var(--chain-white);color:var(--chain-black);display:flex;flex-direction:column;justify-content:space-between;padding:50px}
.chain-intro-copy h3{font-size:clamp(20px,8.8cqi,40px);line-height:1.05;letter-spacing:-.03em;font-weight:400}
.chain-intro-title>span{display:block;width:max-content;max-width:100%;white-space:nowrap}
.chain-intro-copy>p{font-size:18px;line-height:1.15;letter-spacing:-.02em;max-width:475px;margin-top:80px}
.chain-engine-grid{display:grid;grid-template-columns:1fr 1fr;gap:var(--chain-gap)}
.chain-engine{position:relative;display:flex;flex-direction:column;gap:150px;padding:50px;background:var(--chain-panel);transition:background .3s}
.chain-engine h3{font-size:26px;line-height:1.075;letter-spacing:-.03em;padding-right:40px}
.chain-engine-symbol{position:absolute;right:50px;top:52px;font-size:16px;line-height:1;color:#b8b8b8}
.chain-engine>p{max-width:350px;font-size:18px;line-height:1.15;letter-spacing:-.025em}
.chain-engine:hover,.chain-engine:focus-visible{background:#2b2b2b}
.chain-beliefs{display:grid;grid-template-columns:1fr 1fr;gap:var(--chain-gap)}
.chain-beliefs>div{background:var(--chain-panel);padding:50px;display:flex;flex-direction:column;gap:50px;min-height:240px}
.chain-beliefs .chain-kicker{justify-content:flex-start;margin:0}.chain-beliefs .chain-kicker:before{display:none}
.chain-belief-title{font-size:40px;line-height:1.05;letter-spacing:-.03em;max-width:560px}
.chain-operations{height:250svh;position:relative;color:var(--chain-black);margin-top:5px}
.chain-operations-sticky{position:sticky;top:0;height:100svh;min-height:650px;display:flex;flex-direction:column;align-items:center;justify-content:space-between;padding:clamp(32px,6vh,80px) 0 40px;isolation:isolate}
.chain-operations-background{position:absolute;inset:5px 0;background:var(--chain-white);z-index:-1;transform-origin:center;will-change:transform}
.chain-operations-intro{text-align:center;width:100%}.chain-operations .chain-gradient-text{background-image:linear-gradient(90deg,#666666,#111111)}.chain-operations .chain-kicker{margin-bottom:15px}
.chain-equation{width:max-content;max-width:100%;display:flex;align-items:center;justify-content:center;gap:16px;margin:30px auto 0}
.chain-equation>span{border:1px solid #aaaaaa;padding:13px 16px;font-size:14px;line-height:1;text-transform:uppercase;letter-spacing:.03em}
.chain-equation small{font:inherit}
.chain-cycle-arrow{width:28px;height:16px;flex:none;fill:none;stroke:currentColor;stroke-width:1}

.engine-system{display:block;width:min(1150px,96%);min-height:0;flex:1;margin-top:25px;overflow:visible;fill:#111111}
.engine-label text{font-family:Simplon,Arial,sans-serif;font-weight:400}.engine-label-number{font-size:12px;letter-spacing:.08em;fill:#777777}.engine-label-name{font-size:26px;letter-spacing:-.025em}
.chain-carousel-controls{display:flex;align-items:center;justify-content:center;gap:16px;margin-top:40px;height:14px}
.chain-carousel-controls button{width:36px;height:30px;display:flex;align-items:center;justify-content:center;background:none;border:0;padding:8px 0;color:var(--chain-white)}
.chain-carousel-controls svg{display:block;width:36px;height:14px;fill:none;stroke:currentColor;stroke-width:1.5}
.chain-carousel-controls button:disabled{opacity:.3}
.chain-carousel-controls button:not(:disabled):hover{color:var(--chain-gray)}
.chain-slider{display:flex;align-items:stretch;gap:5px;overflow-x:auto;scroll-snap-type:x mandatory;scroll-behavior:auto;overflow-anchor:none;scrollbar-width:none;overscroll-behavior-x:contain}
.chain-slider::-webkit-scrollbar{display:none}
.chain-detail-card{flex:0 0 calc((100% - 5px)/2);min-width:0;background:var(--chain-panel);padding:50px;scroll-snap-align:start;scroll-margin-top:25px}
.chain-card-image{aspect-ratio:16/9;overflow:hidden;margin-bottom:56px;border-radius:8px 8px 0 0}
.chain-card-image img,.chain-card-image video{display:block;width:100%;height:100%;object-fit:cover}
.chain-detail-card h3{font-size:26px;line-height:1.1;letter-spacing:-.03em;margin-bottom:14px}
.chain-card-intro{font-size:18px;line-height:1.2;letter-spacing:-.02em;max-width:475px;color:#c8c8c8;min-height:87px}
.chain-steps{margin-top:30px}
.chain-steps details{border-top:1px solid #585858}.chain-steps details:last-child{border-bottom:1px solid #585858}
.chain-steps summary{display:flex;align-items:center;justify-content:space-between;cursor:pointer;list-style:none;padding:17px 0;font-size:18px;line-height:1.2}.chain-steps summary::-webkit-details-marker{display:none}.chain-steps summary:after{content:'+';font-size:24px;font-weight:300}.chain-steps details[open] summary:after{content:'−'}
.chain-steps summary:hover{color:#ffffff}.chain-steps summary:focus-visible{outline:2px solid var(--chain-gray);outline-offset:4px}
.chain-steps details>p{font-size:18px;line-height:1.4;letter-spacing:-.01em;color:#cccccc;padding:0 12px 24px 0;animation:chain-detail-in .35s ease}
.chain-summary{background:var(--chain-panel);padding:112.5px 50px}
.chain-summary h2{max-width:1050px;margin:auto;text-align:center;font-size:40px;line-height:1.05;letter-spacing:-.03em;font-weight:400}
.chain-transfer-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:5px}
.chain-transfer-grid article{background:var(--chain-panel);padding:50px;display:flex;flex-direction:column;justify-content:space-between;min-height:360px;gap:50px}
.chain-transfer-grid h3{font-size:36px;line-height:1.05;letter-spacing:-.03em}
.chain-transfer-grid ul{margin:0;padding:0;list-style:none;font-size:18px;line-height:1.35}.chain-transfer-grid li+li{margin-top:8px}
.chain-quote{background:var(--chain-white);color:var(--chain-black);padding:112.5px 50px;text-align:center}
.chain-quote blockquote{max-width:1050px;margin:0 auto 45px;font-size:40px;line-height:1.05;letter-spacing:-.03em}
.chain-quote>p{font-size:12px;line-height:1.5;text-transform:uppercase;letter-spacing:.045em}.chain-quote>p span:before{content:', '}
.chain-quote>a{display:inline-block;margin-top:28px;font-size:16px;border-bottom:1px solid #777;padding-bottom:5px}
.chain-footer{display:flex;align-items:center;justify-content:space-between;gap:32px;padding:75px 50px;color:var(--chain-white)}
.chain-footer img{width:130px;height:auto;filter:brightness(0) invert(1)}
.chain-footer p,.chain-footer nav{font-size:12px;line-height:1.4;letter-spacing:.03em;text-transform:uppercase}.chain-footer nav{display:flex;gap:24px}.chain-footer a:hover{text-decoration:underline;text-underline-offset:4px}
.method-page .contact-dialog{color:#111111}.chain-noscript{padding:20px;text-align:center}
.chain-word{transition:opacity .14s linear}.chain-reveal-pending{opacity:0;translate:0 14px}.chain-reveal-visible{opacity:1;translate:0 0;transition:opacity .65s ease,translate .65s cubic-bezier(.22,1,.36,1)}
@keyframes chain-title-in{from{opacity:0;translate:0 20px}to{opacity:1;translate:0 0}}
@keyframes chain-detail-in{from{opacity:0;translate:0 8px}to{opacity:1;translate:0 0}}
@media(min-width:1920px){.chain-intro-copy>p{max-width:475px}.chain-slider .chain-detail-card{flex-basis:calc((100% - 10px)/3)}}
@media(min-width:768px) and (max-width:1199px){.chain-hero h1{font-size:clamp(84px,10vw,130px);line-height:.85;gap:18px}.chain-hero h1 .chain-monogram{width:clamp(110px,12vw,145px)}.chain-heading{font-size:48px}.chain-intro-copy{padding:35px}.chain-intro-copy h3{font-size:clamp(20px,8.8cqi,34px)}.chain-engine{padding:35px;gap:110px}.chain-engine-symbol{top:37px;right:35px}.chain-detail-card{padding:35px}.chain-transfer-grid article{padding:35px}.chain-transfer-grid h3{font-size:28px}.chain-operations-sticky{padding-top:70px}}
@media(max-width:767px){
 .method-page{--chain-inset:20px}.chain-page{padding:20px 20px 0}
 .chain-hero{padding:20px 0 30px;gap:50px}.chain-topbar{padding:0 clamp(12px,4vw,20px);height:40px;flex-wrap:nowrap;gap:8px}.chain-topbar .chain-monogram{width:23px}.chain-topbar button{font-size:12px;white-space:nowrap;flex-shrink:0}
 .chain-hero-content{gap:20px;width:100%;min-width:0}.chain-introducing img{width:110px}.chain-introducing,.chain-subtitle{font-size:16px;line-height:1.075;letter-spacing:-.02em}
 .chain-hero h1{flex-direction:row;flex-wrap:nowrap;gap:clamp(6px,1.8vw,14px);font-size:clamp(28px,10vw,68px);line-height:1;letter-spacing:-.06em;white-space:nowrap}.chain-hero h1>span{flex-shrink:0}.chain-hero h1 .chain-monogram{width:clamp(44px,16vw,104px);margin:0}.chain-down{margin-top:-5px}
 .chain-section-heading{padding:45px 20px}.chain-kicker{font-size:10px;line-height:1;margin-bottom:20px;gap:6px}.chain-kicker:before{width:6px;height:6px}.chain-heading{font-size:26px;line-height:1.05;letter-spacing:-.03em}
 .chain-intro-grid{grid-template-columns:1fr}.chain-intro-copy{padding:20px;min-height:350px}.chain-intro-copy h3{font-size:clamp(20px,8.8cqi,26px);line-height:1.05}.chain-intro-copy>p{font-size:16px;line-height:1.2;margin-top:55px}
 .chain-engine-grid{grid-template-columns:1fr}.chain-engine{padding:20px;gap:60px}.chain-engine h3{font-size:20px}.chain-engine>p{font-size:16px;line-height:1.2;max-width:310px}.chain-engine-symbol{right:20px;top:22px;font-size:14px}
 .chain-beliefs{grid-template-columns:1fr}.chain-beliefs>div{padding:40px 20px;min-height:158px;gap:25px;text-align:center;align-items:center}.chain-beliefs .chain-kicker{justify-content:center}.chain-belief-title{font-size:28px}
 .chain-operations{height:250svh;background:var(--chain-white)}.chain-operations-sticky{position:sticky;height:100svh;min-height:600px;padding:40px 20px 28px}.chain-operations .chain-heading{max-width:290px}.chain-operations-background{inset:0!important}
 .chain-equation{flex-direction:row;gap:7px;margin-top:24px}.chain-equation>span{font-size:10px;padding:10px 8px;min-width:0}.chain-equation small{display:none}.chain-cycle-arrow{width:18px;height:12px}
 .engine-system{width:100%;margin-top:16px}.engine-label-number{font-size:18px}.engine-label-name{font-size:32px}

 .chain-slider [data-loop-copy]{display:none}.chain-carousel-controls{display:none}.chain-slider{display:grid;grid-template-columns:1fr;overflow:visible;scroll-snap-type:none}.chain-detail-card{padding:20px;scroll-margin-top:20px}.chain-card-image{margin-bottom:30px}.chain-detail-card h3{font-size:22px}.chain-card-intro{font-size:16px;min-height:0}.chain-steps{margin-top:25px}.chain-steps summary{font-size:17px}.chain-steps details>p{font-size:16px;line-height:1.4}
 .chain-summary{padding:45px 20px}.chain-summary h2{font-size:26px;line-height:1.075}.chain-transfer-grid{grid-template-columns:1fr}.chain-transfer-grid article{padding:30px 20px;min-height:260px;gap:40px}.chain-transfer-grid h3{font-size:28px}.chain-transfer-grid ul{font-size:16px}
 .chain-quote{padding:45px 20px}.chain-quote blockquote{font-size:26px;line-height:1.075;margin-bottom:30px}.chain-quote>p{font-size:10px}.chain-quote>p span{display:block}.chain-quote>p span:before{content:none}.chain-quote>a{font-size:14px}
 .chain-footer{padding:40px 20px;flex-wrap:wrap;gap:28px 16px}.chain-footer img{width:100px}.chain-footer nav{gap:15px;font-size:10px}.chain-footer p{font-size:10px;width:100%;text-align:center}
}
@media(prefers-reduced-motion:reduce){html,.chain-slider{scroll-behavior:auto}.chain-hero h1>span,.chain-steps details>p{animation:none}.chain-word,.chain-reveal-visible{transition:none}.chain-reveal-pending{opacity:1;translate:none}.chain-operations{height:auto}.chain-operations-sticky{position:relative;height:auto;min-height:800px}.engine-system{height:600px;flex:auto}}
@media print{.chain-slider [data-loop-copy]{display:none}.chain-page{padding:0}.chain-operations{height:auto}.chain-operations-sticky{position:relative;height:auto;min-height:0}.engine-system{height:560px;flex:none}.chain-slider{display:block}.chain-detail-card{break-inside:avoid}.chain-steps details>p{display:block!important}.chain-word,.chain-reveal-pending{opacity:1!important;translate:none}.chain-hero h1>span{animation:none}.chain-topbar button,.chain-carousel-controls{display:none}}

@media(prefers-reduced-motion:reduce) and (max-width:767px){.chain-operations-sticky{min-height:0}.engine-system{height:auto;aspect-ratio:600/780;flex:none}}

/* Keep the editorial composition while sharing accessible navigation. */
.chain-topbar .chain-menu-trigger{display:grid;place-items:center;margin-left:24px;padding:0;min-width:40px;min-height:40px}
.chain-topbar .chain-menu-trigger img{width:22px;height:22px}
.method-page .fullscreen-dialog{color:#efefef}
.chain-steps details{interpolate-size:allow-keywords}
@supports selector(details::details-content){
 .chain-steps details::details-content{height:0;overflow:clip;transition:height 400ms var(--ease-out),content-visibility 400ms allow-discrete}
 .chain-steps details[open]::details-content{height:auto}
}
@media(max-width:767px){.chain-topbar .chain-menu-trigger{margin-left:0}.method-page .chain-topbar>.language-switch{margin-right:0}}
@media(prefers-reduced-motion:reduce){.chain-steps details::details-content{transition:none}}