:root{color-scheme:dark;--bg:#101414;--ink:#edf1ed;--mint:#b9f8d3;--muted:#a3b0a7;--line:#2c3630;font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;font-synthesis:none}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:30px}body{margin:0;background:var(--bg);color:var(--ink)}a{color:inherit;text-decoration:none}a:focus-visible{outline:2px solid var(--mint);outline-offset:7px}::selection{background:var(--mint);color:var(--bg)}.skip{position:fixed;z-index:3;top:-70px;left:15px;background:var(--mint);color:var(--bg);padding:14px}.skip:focus{top:12px}.shell{max-width:1480px;padding:0 64px;margin:auto}.preview-note{padding:8px 20px;text-align:center;background:#202b24;color:#cfddd2;font-size:10px;letter-spacing:.35px}.preview-note span{margin-left:14px;color:#a7b9ac}.header{display:flex;align-items:center;justify-content:space-between;padding:31px 0;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:11px;font-size:18px;letter-spacing:-.6px;font-weight:550}.brand 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0}.hero-aside{font-size:12px;color:var(--muted);margin:19px 0 37px}.text-link{font-size:12px;display:inline-flex;align-items:center;gap:48px;padding-bottom:12px;border-bottom:1px solid #596a5f}.text-link:hover{color:var(--mint);border-color:var(--mint)}.text-link span{font-size:22px;color:var(--mint)}.payoff{margin:27px 0 0 22px}.figure-heading{display:flex;justify-content:space-between;padding:0 24px;font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:8px;letter-spacing:1.6px;color:#a2b6a8}.figure-heading span:last-child{color:#84988b}.payoff svg{width:100%;display:block}.grid{fill:none;stroke:#52665a;stroke-width:.65;opacity:.18}.plot-label{fill:#9bab9f;font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:10px}.payoff figcaption{display:flex;justify-content:space-between;gap:15px;margin:0 24px;padding-top:14px;border-top:1px solid var(--line);font-size:9px;line-height:1.7;color:#a2b6a8}.payoff figcaption span:last-child{color:#91a297;text-align:right;max-width:180px}.principles{border-top:1px solid var(--line);border-bottom:1px solid var(--line);display:grid;grid-template-columns:repeat(4,1fr);padding:21px 0;font-size:10px;color:#aebfb2;letter-spacing:1px}.principles span{display:flex;align-items:center;gap:10px}.principles span::before{content:"+";color:#789984;font-size:15px}.section{display:grid;grid-template-columns:1fr 3fr;padding:94px 0;border-bottom:1px solid var(--line);gap:45px}.section-label{display:flex;align-items:center;gap:18px;color:#9fafA3;font-size:9px;letter-spacing:1.5px;padding-top:12px;align-self:start;white-space:nowrap}.small-rule{height:1px;width:28px;background:#526359}.section-content{min-width:0}h2{font-size:clamp(34px,3.7vw,53px);font-weight:450;letter-spacing:-2px;line-height:1.13;margin:0}h2 em{font-size:1.1em}.section-lead{font-size:17px;line-height:1.8;color:#b6c5bb;max-width:610px;margin:25px 0 33px}.method-list{display:grid;grid-template-columns:repeat(3,1fr);gap:30px;padding-top:20px}.method-list article{border-top:1px solid #415047;padding-top:19px}.method-number{font-family:Georgia,serif;font-style:italic;font-size:21px;color:#8aaf97}h3{font-size:15px;font-weight:500;letter-spacing:-.25px;margin:18px 0 13px}.method-list p{font-size:12px;line-height:1.9;color:var(--muted);margin:0}.margin-note{font-family:Georgia,serif;font-style:italic;font-size:16px;color:#a9b9ad;line-height:1.6;margin:43px 0 0}.research-heading{display:flex;align-items:end;gap:30px;justify-content:space-between;margin-bottom:44px}.research-heading h2{flex-shrink:0}.research-heading>p{max-width:225px;font-size:12px;line-height:1.9;color:var(--muted);margin:0 0 4px}.research-rows article{display:flex;align-items:center;border-top:1px solid var(--line);padding:26px 0;gap:27px}.research-index{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:10px;color:#8ba292;align-self:flex-start;margin-top:5px}.research-rows h3{font-size:18px;margin:0 0 10px}.research-rows p{font-size:12px;color:var(--muted);line-height:1.8;margin:0}.research-symbol{margin-left:auto;color:#91b69d;font-family:Georgia,serif;font-style:italic;font-size:35px;padding-left:15px;min-width:55px}.careers{margin:65px 0;background:#1b2921;border:1px solid #3a5141;border-radius:6px;padding:43px 49px 49px}.careers-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:31px}.careers-top .eyebrow{color:#afc5b5}.careers-star{font-size:39px;line-height:1;color:#b9d0be}.careers h2{font-size:clamp(35px,4.6vw,65px);letter-spacing:-2.8px;line-height:1.12}.careers h2 em{font-size:1.07em}.careers-bottom{display:grid;grid-template-columns:1.1fr 1fr;gap:100px;margin-top:43px}.careers-bottom p{font-size:13px;line-height:1.9;color:#b4c7ba;margin:0}.careers-bottom .punchline{color:var(--mint);font-size:16px;margin-bottom:13px}.contact{border-left:1px solid #405647;padding-left:31px}.contact h3{font-size:18px;margin:0 0 14px}.contact-pending{font-size:11px;color:#cbe6d3;margin:20px 0 9px;display:flex;gap:9px;align-items:center}.pending-dot{width:5px;height:5px;border:1px solid var(--mint);border-radius:50%;flex-shrink:0}.contact .contact-note{font-size:10px;line-height:1.7;color:#a6bdad;max-width:275px}footer{display:flex;align-items:center;justify-content:space-between;gap:24px;border-top:1px solid var(--line);padding:29px 0 36px;font-size:10px;color:#96a69b}.footer-brand{color:#d9e2db;font-size:13px}footer span:last-child{font-size:9px}
@media(min-width:1500px){.hero{padding-top:115px;padding-bottom:100px}}
@media(max-width:1100px){.shell{padding:0 35px}.hero{padding-top:75px;padding-bottom:60px}h1{letter-spacing:-2.6px}.payoff{margin-left:0}.section{grid-template-columns:1fr 3.5fr;gap:25px}.research-heading{display:block}.research-heading>p{max-width:420px;margin-top:23px}.careers-bottom{gap:40px}.small-rule{display:none}.method-list{gap:20px}.payoff figcaption{font-size:8px}}
@media(max-width:760px){.shell{padding:0 24px}.header{padding:23px 0;gap:15px}.brand{font-size:15px}.brand img{width:33px;height:33px}.brand small{font-size:7px}nav{gap:16px;font-size:11px}.nav-contact{padding:9px 10px}.nav-contact span{display:none}.hero{grid-template-columns:1fr;gap:34px;padding-top:62px;padding-bottom:40px}h1{font-size:clamp(52px,10.8vw,78px);letter-spacing:-3px;margin:25px 0}.hero-description{max-width:440px;font-size:15px}.hero-aside{margin-bottom:26px}.payoff{max-width:550px;margin:0 auto;width:100%}.figure-heading{padding-top:13px}.payoff figcaption{font-size:10px}.principles{grid-template-columns:1fr 1fr;gap:15px 20px;font-size:9px;padding:20px 0}.section{grid-template-columns:1fr;gap:30px;padding:58px 0}.section-label{padding:0}.small-rule{display:block}.section h2{font-size:42px}.section-lead{font-size:15px;margin-top:20px}.method-list{gap:22px}.method-list h3{font-size:14px}.method-list p{font-size:11px}.margin-note{font-size:15px;margin-top:30px}.research-heading{margin-bottom:28px}.careers{margin:40px 0;padding:28px}.careers-top{margin-bottom:27px}.careers h2{font-size:clamp(32px,6.7vw,48px);letter-spacing:-1.7px}.careers-bottom{grid-template-columns:1fr;gap:30px;margin-top:28px}.contact{border-left:0;border-top:1px solid #405647;padding:25px 0 0}.contact .contact-note{max-width:none}footer{flex-wrap:wrap;gap:17px;font-size:9px}footer span:last-child{width:100%}}
@media(max-width:480px){.shell{padding:0 20px}.preview-note{font-size:9px;padding:7px 10px;line-height:1.5}.preview-note span{display:block;margin:2px 0 0}.header{align-items:flex-start;gap:14px;flex-wrap:wrap}.brand{font-size:16px}nav{width:100%;justify-content:space-between;padding-top:10px;gap:12px;font-size:11px}.nav-contact{padding:8px 12px}.hero{padding-top:46px;gap:30px}h1{font-size:51px;letter-spacing:-2.8px}.eyebrow{font-size:9px;letter-spacing:1.5px}.hero-description{font-size:14px}.hero-aside{font-size:11px}.text-link{font-size:11px;gap:35px}.figure-heading{font-size:7px;padding-left:10px;padding-right:10px}.payoff figcaption{margin:0 10px;font-size:8px;gap:8px}.payoff figcaption span:last-child{max-width:145px}.section h2{font-size:36px;letter-spacing:-1.5px}.section-lead{font-size:14px}.method-list{display:block;padding-top:3px}.method-list article{display:flex;gap:20px;margin-top:23px;padding-top:20px}.method-list article:first-child{margin-top:0}.method-number{min-width:18px}.method-list h3{margin:0 0 9px;font-size:15px}.method-list p{font-size:12px}.research-rows article{gap:17px;padding:22px 0}.research-rows h3{font-size:16px}.research-rows p{font-size:11px}.research-symbol{font-size:29px;min-width:29px;padding-left:4px}.careers{padding:24px 19px}.careers h2{font-size:33px;letter-spacing:-1.2px}.careers h2 em{font-size:1em}.careers-star{font-size:29px}.careers-top .eyebrow{font-size:8px;letter-spacing:1px}.careers-bottom p{font-size:12px}.careers-bottom .punchline{font-size:15px}.contact h3{font-size:16px}footer{gap:14px}.footer-brand{width:100%}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}

/* Keep the expanded learning navigation usable on narrow screens. */
@media(max-width:760px){nav{flex-wrap:wrap;row-gap:14px}}

.playground-purpose{max-width:660px;margin:0 0 30px;padding-top:4px}
.playground-purpose h3{font-size:17px;line-height:1.6;color:var(--ink);margin:0 0 15px}
.playground-purpose p{font-size:14px;line-height:1.9;color:var(--muted);margin:0 0 17px}
.playground-links{display:flex;flex-wrap:wrap;gap:24px 40px}
@media(max-width:480px){.playground-purpose h3{font-size:16px}.playground-purpose p{font-size:13px}.playground-links{gap:22px}}