:root{--ink:#19272d;--muted:#59666b;--line:#d8dee0;--paper:#f9faf8;--lime:#d7ee65;--dark:#142329}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:95px}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.65 Arial,Helvetica,sans-serif}a{color:inherit;text-decoration:none}button{font:inherit}button,a,summary{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:3px solid #779125;outline-offset:6px}.skip{position:fixed;top:-70px;left:10px;padding:12px;background:var(--lime);z-index:10}.skip:focus{top:10px}.wrap{max-width:1280px;margin:auto;padding-left:56px;padding-right:56px}header{height:96px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 4.4%;gap:24px}.brand{display:flex;align-items:center;gap:12px;font-size:17px;letter-spacing:2px;font-weight:700}.mark{display:inline-flex;align-items:center;justify-content:center;background:var(--ink);color:var(--lime);width:34px;height:34px;border-radius:50%;font:italic 31px Georgia;letter-spacing:0}nav{display:flex;gap:30px;font-size:14px}nav a:hover,.author:hover{color:#627818}.author{font-size:14px}.author span{margin-left:10px}.hero{padding-top:48px}.eyebrow{font-size:12px;letter-spacing:1.8px;font-weight:600;line-height:1.6}.hero>.eyebrow{display:flex;justify-content:space-between;color:var(--muted)}.hero-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:65px;align-items:center;padding:52px 0 57px}h1,h2,h3,p{margin:0}h1,h2{font-family:Georgia,'Times New Roman',serif;font-weight:400;letter-spacing:-2.4px;line-height:1.09}h1{font-size:clamp(42px,4.8vw,68px)}h1 em{font-weight:400;color:#6a7e31}h2{font-size:44px;letter-spacing:-1.6px}h3{line-height:1.3}.intro{font-size:20px;line-height:1.6;margin-top:28px;max-width:540px}.hero-note{color:var(--muted);max-width:460px;margin-top:16px}.button{margin-top:30px;background:var(--ink);color:white;padding:14px 20px;display:inline-flex;gap:38px;align-items:center;font-size:14px}.button:hover{background:#344931}.mapping{border:1px solid #cbd4d5;padding:26px 28px 22px;background:#eef2ee}.diagram-heading{font-size:11px;letter-spacing:1.5px;display:flex;justify-content:space-between;gap:8px}.diagram-heading span{color:#68746c;font-size:10px}.worlds{display:flex;align-items:center;justify-content:space-between;margin:46px 0 36px;gap:10px}.object{display:flex;flex-direction:column;align-items:center;gap:12px;font-size:13px}.math{height:102px;width:102px;border:1px solid #98a89a;border-radius:50%;display:flex;align-items:center;justify-content:center;font:italic 50px Georgia}.rep .math{background:var(--lime);border-color:#c4d859}.morphism{display:flex;flex-direction:column;align-items:center;margin-top:-24px}.morphism i{font:italic 25px Georgia}.morphism>span{font:40px Georgia;line-height:1}.morphism small{font-size:11px}.diagram-rule{border-top:1px solid #cbd4cc}.diagram-equation{font:21px Georgia;margin:22px 0 15px;text-align:center}.mapping p{font-size:14px;line-height:1.65;color:var(--muted)}.diagram-footer{border-top:1px solid #cbd4cc;margin-top:25px;padding-top:16px;display:flex;justify-content:space-between;font-size:10px;letter-spacing:1.6px}.hero-bottom{border-top:1px solid var(--line);padding:21px 0;display:flex;justify-content:space-between;font-size:12px;color:var(--muted)}section[id]{scroll-margin-top:25px}.foundation,.frameworks{padding-top:76px;padding-bottom:80px}.section-top{display:flex;justify-content:space-between;gap:20px}.section-aside{font-size:13px;color:var(--muted)}.section-intro{display:grid;grid-template-columns:1.2fr 1fr;gap:65px;margin-top:35px;margin-bottom:45px;align-items:start}.section-intro>p{color:var(--muted)}.concepts{display:grid;grid-template-columns:repeat(5,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.concepts article{padding:24px 20px;border-right:1px solid var(--line)}.concepts article:first-child{padding-left:0}.concepts article:last-child{border:0;padding-right:0}.num{font:italic 14px Georgia;color:#7b8588}.concepts h3{font:24px Georgia;margin:28px 0 14px}.concepts p{font-size:14px;color:var(--muted);line-height:1.7}.formal{margin-top:26px;border-bottom:1px solid var(--line)}summary{cursor:pointer;list-style:none}summary::-webkit-details-marker{display:none}.formal summary{padding:16px 0;font-size:14px;display:flex;justify-content:space-between}.formal>div{max-width:850px;padding:5px 0 24px;color:var(--muted);font-size:15px}.formal p+p{margin-top:16px}.formula{font-family:Georgia;font-size:20px;color:var(--ink)}.kstar-section{background:var(--dark);color:#edf1ec;padding:75px 0}.kstar-section .section-aside,.kstar-section .section-intro>p{color:#b1bfbe}.kstar-section h2 em{color:var(--lime)}.loop-equation{display:flex;align-items:center;justify-content:space-between;border-top:1px solid #425158;border-bottom:1px solid #425158;padding:30px 20px;font:38px Georgia;gap:15px}.loop-equation b{font:24px Georgia;color:#75878b}.lime{color:var(--lime)}.explorer{display:grid;grid-template-columns:0.85fr 1.5fr;gap:68px;padding-top:42px}.step-list{display:flex;flex-direction:column;gap:5px}.step-list button{text-align:left;display:flex;align-items:center;gap:16px;border:0;border-bottom:1px solid #425158;color:#b5c3c3;background:transparent;padding:20px 16px;cursor:pointer;font-size:15px}.step-list button>span{font:italic 14px Georgia}.step-list button>b{margin-left:auto;font-weight:400}.step-list button[aria-selected=true]{background:var(--lime);color:var(--dark)}#stage{padding:6px 0;min-height:320px}#stage-label{color:var(--lime);font-size:11px}#stage h3{font:30px/1.25 Georgia;margin:18px 0}#stage-copy{color:#c0cdcc;font-size:16px;max-width:590px}.example{border-left:2px solid #8b9b68;padding-left:20px;margin-top:26px}.example>span{color:#a9bc89;font-size:10px;letter-spacing:1.4px}.example p{font-size:14px;color:#b6c5c3;margin-top:10px}.k-note{font-size:13px;color:#9daead;margin-top:28px;max-width:930px}.framework-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:65px}.featured-framework{background:#e7eddf;padding:38px;display:flex;flex-direction:column;align-items:flex-start}.featured-framework h3{font:40px Georgia;margin:25px 0 20px}.featured-framework p{color:#53624f;max-width:350px}.big-symbol{font:italic 49px Georgia;margin:50px 0 14px}.caption{font-size:12px;color:#65765b}.framework-stack article{padding:0 0 24px;margin-bottom:24px;border-bottom:1px solid var(--line)}.framework-stack article:last-child{margin-bottom:0}.framework-stack article>span{font-size:11px;letter-spacing:1.5px;color:#6b7a68}.framework-stack h3{font:27px Georgia;margin:8px 0}.framework-stack p{font-size:15px;color:var(--muted)}.research-section{background:#eef1f2;padding:72px 0}.research-section h2{margin:34px 0 43px}.research-list{border-top:1px solid #cbd3d6}.research-list details{border-bottom:1px solid #cbd3d6}.research-list summary{display:flex;align-items:center;gap:30px;padding:26px 0}.research-number{font:italic 18px Georgia;color:#7c898f;width:32px}.tag{font-size:10px;letter-spacing:1.6px;color:#64787f}.research-list h3{font:25px/1.3 Georgia;margin-top:7px}.plus{margin-left:auto;font-size:25px;font-weight:300}.research-body{margin-left:62px;max-width:820px;padding-bottom:28px;color:var(--muted);font-size:16px}.research-body p+p{margin-top:12px}details[open] .plus,details[open] summary>span:last-child{transform:rotate(45deg)}.research-note{font-size:13px;color:var(--muted);margin-top:24px}.about{display:grid;grid-template-columns:1fr 2fr;gap:60px;padding-top:80px;padding-bottom:80px}.about h2{margin-bottom:26px}.about p{color:var(--muted);margin-top:16px;max-width:720px}footer{border-top:1px solid var(--line);padding-top:26px;padding-bottom:30px;display:flex;justify-content:space-between;align-items:center;gap:20px}footer>span,footer>a:last-child{font-size:12px;color:var(--muted)}footer .brand{font-size:14px}footer .mark{width:28px;height:28px;font-size:24px}@media(min-width:1450px){header{padding-left:calc((100% - 1168px)/2);padding-right:calc((100% - 1168px)/2)}}@media(max-width:1000px){.wrap{padding-left:32px;padding-right:32px}.hero-grid,.section-intro,.framework-grid{gap:30px}.hero-grid{grid-template-columns:1.1fr 1fr}h1{font-size:49px}.mapping{padding:24px 18px}.math{height:78px;width:78px}.diagram-heading span{display:none}.concepts{grid-template-columns:repeat(3,1fr)}.concepts article{border-bottom:1px solid var(--line)}.concepts article:first-child{padding-left:20px}.explorer{gap:30px}.author{display:none}}@media(max-width:700px){header{height:auto;min-height:100px;flex-wrap:wrap;gap:14px;padding:20px 24px}.brand{font-size:15px}nav{width:100%;justify-content:space-between;gap:12px;font-size:13px}.wrap{padding-left:24px;padding-right:24px}.hero{padding-top:28px}.hero>.eyebrow>span:last-child{display:none}.hero-grid,.section-intro,.framework-grid,.explorer,.about{grid-template-columns:1fr}.hero-grid{padding-top:30px;gap:40px}h1{font-size:48px;letter-spacing:-2px}h2{font-size:36px}.intro{font-size:18px}.mapping{padding:25px}.math{width:98px;height:98px}.hero-bottom{gap:12px;flex-direction:column}.section-aside{display:none}.foundation,.frameworks{padding-top:52px;padding-bottom:52px}.section-intro{gap:23px;margin-top:26px;margin-bottom:30px}.concepts{grid-template-columns:1fr 1fr}.concepts article{padding:20px!important}.concepts article:nth-child(even){border-right:0}.concepts article:last-child{grid-column:1/-1;border-top:1px solid var(--line)}.concepts h3{margin-top:18px}.kstar-section,.research-section{padding:50px 0}.loop-equation{font-size:24px;padding:23px 0;gap:6px}.loop-equation b{font-size:18px}.explorer{gap:25px}.step-list{display:grid;grid-template-columns:1fr 1fr;gap:5px}.step-list button{padding:13px 10px;font-size:13px;gap:8px}.step-list b{display:none}#stage{min-height:370px}.featured-framework{padding:28px}.big-symbol{font-size:42px}.research-list summary{gap:13px}.research-list h3{font-size:22px}.research-number{width:22px;flex-shrink:0}.research-body{margin-left:35px}.tag{font-size:9px;letter-spacing:1.1px}.about{padding-top:50px;padding-bottom:50px;gap:24px}footer{flex-wrap:wrap}footer>span{display:none}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}