:root{--bg:#fafaf7;--surface:#fff;--dim:#f0f1eb;--ink:#1b2527;--soft:#586568;--line:#dce1da;--accent:#335b52;--accent-dark:#25483f;--accent-soft:#e8eee8;--blue:#33568c;--serif:Georgia,'Times New Roman',serif;--sans:Inter,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:32px}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.65 var(--sans);-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button,input{font:inherit}button,a{-webkit-tap-highlight-color:transparent}a:hover{color:var(--accent)}button{cursor:pointer}button:disabled{cursor:default}a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{outline:3px solid var(--blue);outline-offset:5px}::selection{background:#d6e3d6}p,h1,h2,h3,figure{margin:0}p+p{margin-top:18px}.wrap{width:min(1200px,calc(100% - 96px));margin-inline:auto}.skip{position:fixed;left:20px;top:-100px;z-index:100;background:var(--ink);color:white;padding:12px}.skip:focus{top:12px}.site-header{height:104px;display:flex;align-items:center;gap:48px;border-bottom:1px solid var(--line)}.brand{display:inline-flex;align-items:center;gap:9px;font-size:26px;letter-spacing:-1.3px;font-weight:650;line-height:1}.brand-period{color:var(--accent);margin-left:-8px}.brand-mark{display:inline-block;flex-shrink:0;width:31px;height:34px;background:currentColor;mask:url('/assets/mark.png') center/contain no-repeat;-webkit-mask:url('/assets/mark.png') center/contain no-repeat}.site-header nav{display:flex;gap:30px;margin-left:auto;font-size:13px;color:var(--soft)}.header-link{font-size:13px;font-weight:600;border-left:1px solid var(--line);padding-left:30px;white-space:nowrap}.header-link span{margin-left:12px}.hero{display:grid;grid-template-columns:1.1fr 1fr;gap:72px;align-items:center;padding-block:94px 100px}.eyebrow{font:600 10px/1.5 var(--sans);letter-spacing:1.9px;color:var(--accent);display:flex;align-items:center;gap:9px}.status-dot{width:6px;height:6px;background:#68836c;border-radius:50%}h1{font:400 clamp(48px,5.3vw,74px)/1.08 var(--serif);letter-spacing:-3.2px;margin:26px 0}em{font-weight:400;color:var(--accent)}.hero-lede{font-size:18px;line-height:1.65;letter-spacing:-.3px}.hero-description{font-size:15px;color:var(--soft);max-width:450px;margin-top:17px}.actions{display:flex;align-items:center;gap:26px;margin-top:32px}.button{display:inline-flex;justify-content:center;align-items:center;gap:22px;padding:14px 20px;font-size:13px;font-weight:550;border:1px solid transparent;border-radius:4px;line-height:1.4}.primary{background:var(--accent);color:#fff}.primary:hover{background:var(--accent-dark);color:white}.text-link{display:inline-flex;align-items:center;gap:18px;font-size:13px;font-weight:600}.text-link:hover{text-decoration:underline;text-underline-offset:5px}.caption{font-size:11px;color:var(--soft);line-height:1.7;max-width:390px;margin-top:17px}.evidence-map{background:var(--dim);border:1px solid var(--line);border-radius:5px;padding:26px 26px 22px;position:relative;background-image:radial-gradient(#acb6aa55 .7px,transparent .7px);background-size:16px 16px}.map-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:26px}.map-top .eyebrow{font-size:9px;letter-spacing:1.4px}.map-index{font:10px ui-monospace,monospace;color:var(--soft)}.map-node{background:var(--bg);padding:18px;display:flex;align-items:center;gap:15px;border:1px solid #d1d9cd;border-radius:4px;position:relative}.node-label{display:block;font:600 9px/1.5 var(--sans);letter-spacing:1.2px;color:var(--soft);margin-bottom:6px}.map-node strong{font-size:14px;font-weight:550;display:block;line-height:1.5}.map-node small{display:block;font-size:10px;color:var(--soft);margin-top:4px}.node-symbol{width:30px;height:33px;display:grid;place-items:center;color:var(--accent);font-size:25px}.node-id{position:absolute;right:12px;top:12px;color:#74827a;font:9px ui-monospace,monospace}.observation-node{border-color:#94a795;background:#e7eee5}.map-connector{height:48px;margin-left:39px;border-left:1px solid #96a792;display:flex;align-items:center;padding-left:15px}.map-connector span,.map-branches span{font:10px ui-monospace,monospace;color:var(--soft);background:var(--dim)}.map-branches{height:64px;display:grid;grid-template-columns:1fr 1fr;position:relative;padding-top:34px;text-align:center}.map-branches:before{content:'';position:absolute;height:19px;width:50%;left:25%;top:16px;border:1px solid #96a792;border-bottom:0}.map-branches:after{content:'';height:16px;width:1px;background:#96a792;position:absolute;top:0;left:50%}.map-leaves{display:grid;grid-template-columns:1fr 1fr;gap:16px}.map-leaves .map-node{display:block;padding:14px}.map-leaves strong{font-size:12px}.evidence-map figcaption{font-size:10px;color:var(--soft);line-height:1.8;margin-top:23px;display:flex;align-items:baseline;gap:8px}.small-dot{width:5px;height:5px;flex-shrink:0;background:var(--accent);border-radius:50%}.principle-strip{border-block:1px solid var(--line)}.principle-strip .wrap{display:flex;align-items:center;justify-content:space-between;gap:35px;padding-block:22px}.principle-strip span{font-size:10px;letter-spacing:1.5px;color:var(--soft)}.principle-strip span:last-child{font-size:24px;color:var(--accent)}.principle-strip p{font:19px/1.5 var(--serif);color:var(--soft)}.principle-strip strong{font-weight:400;color:var(--ink)}.mobile-break{display:none}.section{padding-block:94px}.section-intro h2{font:400 42px/1.2 var(--serif);letter-spacing:-1.25px;margin:20px 0}.section-intro>p:not(.eyebrow){color:var(--soft);font-size:15px;max-width:530px}.pipeline{padding:0;margin:48px 0 0;list-style:none;display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line)}.pipeline li{padding:23px 25px 0 0;position:relative}.pipeline li+li{padding-left:25px;border-left:1px solid var(--line)}.pipeline li:last-child{padding-right:0}.step-top{display:flex;justify-content:space-between;color:var(--accent);font:11px ui-monospace,monospace;margin-bottom:24px}.pipeline h3{font-size:16px;line-height:1.45;letter-spacing:-.3px;min-height:47px;font-weight:550}.pipeline p{font-size:13px;color:var(--soft);margin-top:12px;min-height:106px}.step-note{display:block;font-size:9px;letter-spacing:1.4px;color:var(--accent);margin-top:20px}.section-note{font-size:11px;color:var(--soft);margin-top:30px}.evidence-section{background:var(--dim);border-block:1px solid var(--line)}.evidence-layout{display:grid;grid-template-columns:.9fr 1.1fr;gap:95px;align-items:center}.evidence-layout .text-link{margin-top:25px}.example-card{background:var(--bg);border:1px solid #d5dcd1;border-radius:5px;padding:28px 30px}.card-heading{display:flex;justify-content:space-between;align-items:center;gap:12px}.card-heading .eyebrow{font-size:9px;letter-spacing:1.2px}.pill{font-size:10px;color:var(--accent);background:var(--accent-soft);padding:3px 8px;border-radius:3px;white-space:nowrap}.example-card h3{font:30px/1.25 var(--serif);margin-top:25px;letter-spacing:-.6px}.finding{font-size:16px;margin-top:12px!important;line-height:1.6}.fact-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin:25px 0;border-block:1px solid var(--line);padding-block:19px}.fact-grid dt{font-size:10px;color:var(--soft);margin-bottom:4px}.fact-grid dd{margin:0;font-size:12px;font-weight:550}.context-note{display:flex;gap:14px;font-size:12px;color:var(--soft);line-height:1.7}.context-note>span{font-size:21px;color:var(--accent)}.context-note strong{color:var(--ink);font-weight:550}.citation{margin-top:24px;padding-top:20px;border-top:1px solid var(--line)}.citation a{font:14px/1.5 var(--serif);display:block;text-decoration:underline;text-decoration-color:#b9c3b7;text-underline-offset:3px}.citation p{font-size:10px;color:var(--soft);margin-top:10px}.citation small{display:block;font-size:10px;color:var(--soft);margin-top:12px}.product-section{display:grid;grid-template-columns:1fr 1fr;gap:110px;align-items:center;border-bottom:1px solid var(--line)}.product-copy{font-size:15px;color:var(--soft)}.product-copy .button{margin-top:28px}.progress-section{display:grid;grid-template-columns:1fr 1fr;gap:110px}.progress-list>div{padding:20px 0;border-top:1px solid var(--line)}.progress-list>div+div{margin-top:12px}.progress-label{font-size:9px;letter-spacing:1.5px;color:var(--accent)}.progress-label.upcoming{color:#866844}.progress-list h3{font-weight:550;font-size:17px;letter-spacing:-.2px;margin:12px 0 8px}.progress-list p{font-size:13px;color:var(--soft)}.contact-section{background:#e8eee7;border-block:1px solid #d8e0d5;text-align:center;padding:72px 0}.contact-section .eyebrow{justify-content:center}.contact-section h2{font:400 42px/1.2 var(--serif);letter-spacing:-1px;margin:20px 0}.contact-section p:not(.eyebrow){font-size:13px;color:var(--soft)}.contact-section a{display:inline-flex;align-items:center;gap:35px;margin-top:27px;padding-bottom:6px;border-bottom:1px solid var(--accent);font-size:19px;color:var(--accent)}.site-footer{display:flex;align-items:center;gap:28px;min-height:116px}.site-footer .brand{font-size:21px}.site-footer .brand-mark{width:23px;height:27px}.site-footer p,.site-footer>span{font-size:11px;color:var(--soft)}.site-footer>span{margin-left:auto}
/* Public prototype: the original evidence-card and source-rail layout, in English. */
.prototype-banner{background:var(--accent-dark);color:#fff;padding:12px 24px;text-align:center;font-size:12px}.prototype-banner strong{font-weight:650}.prototype-header{height:80px}.prototype-header .header-link{margin-left:auto}.prototype-main{padding:35px 0 70px}.prototype-intro{display:flex;justify-content:space-between;align-items:center;gap:30px;padding:0 0 28px;border-bottom:1px solid var(--line)}.prototype-intro h1{font:32px/1.3 var(--serif);margin:0 0 8px;letter-spacing:-.8px}.prototype-intro p{font-size:12px;color:var(--soft)}.prototype-tabs{display:flex;gap:7px;flex-wrap:wrap}.prototype-tabs a{font-size:12px;padding:9px 15px;border-radius:3px;color:var(--soft)}.prototype-tabs a[aria-current="page"]{background:var(--accent-soft);color:var(--accent-dark)}.prototype-grid{display:grid;grid-template-columns:minmax(0,1fr) 295px;gap:65px;padding-top:38px}.prototype-grid h2{font:34px/1.3 var(--serif);letter-spacing:-.7px;margin:10px 0}.prototype-grid .subtitle{font-size:13px;color:var(--soft)}.filters{display:flex;flex-wrap:wrap;gap:8px;margin:25px 0 15px}.filters button{border:1px solid var(--line);background:transparent;padding:6px 12px;border-radius:30px;font-size:11px;color:var(--soft)}.filters button[aria-pressed="true"]{background:var(--accent);border-color:var(--accent);color:white}.result-count{font-size:11px;color:var(--soft);margin-bottom:15px}.observation{padding:22px 0;border-top:1px solid var(--line)}.observation .observation-label{display:flex;justify-content:space-between;gap:12px;font-size:10px;color:var(--soft);margin-bottom:8px}.observation h3{font-size:16px;font-weight:550;line-height:1.55;letter-spacing:-.15px}.observation .obs-meta{font-size:11px;color:var(--soft);margin-top:9px}.obs-meta strong{font-weight:600;color:var(--blue)}.observation details{margin-top:12px;font-size:12px}.observation summary{cursor:pointer;color:var(--accent);width:fit-content;padding:3px 0}.detail-content{padding:16px;margin-top:10px;border-left:2px solid #8fa18b;background:var(--dim);font-size:12px;color:var(--soft)}.detail-content p+p{margin-top:9px}.detail-content a{text-decoration:underline}.source-rail{border-left:1px solid var(--line);padding-left:28px}.source-rail h3{font-size:12px;font-weight:600;margin-bottom:16px}.rail-facts{margin:0}.rail-facts>div{padding:12px 0;border-top:1px solid var(--line)}.rail-facts dt{font-size:10px;color:var(--soft)}.rail-facts dd{font-size:12px;margin:4px 0 0}.source-rail .citation a{font-size:16px}.rail-note{font-size:11px;color:var(--soft);margin-top:24px!important}.prototype-footnote{font-size:11px;color:var(--soft);border-top:1px solid var(--line);margin-top:25px;padding-top:20px}.question-choices{display:grid;gap:10px;margin:25px 0}.question-choices button{text-align:left;padding:15px 18px;border:1px solid var(--line);background:var(--surface);color:var(--ink);border-radius:4px;font-size:13px}.question-choices button[aria-pressed="true"]{border-color:var(--accent);background:var(--accent-soft)}.answer-card{padding:24px;background:var(--dim);border:1px solid var(--line);border-radius:4px}.answer-card h3{font-size:18px;font-weight:500;margin:14px 0}.answer-card p{font-size:13px;color:var(--soft)}.answer-card a{display:inline-block;text-decoration:underline;font-size:12px;color:var(--accent);margin-top:18px}.paper-summary{margin-top:24px;font-size:14px;color:var(--soft)}.paper-summary h3{font-size:16px;color:var(--ink);margin:25px 0 10px}.paper-summary ul{padding-left:20px}.paper-summary .text-link{margin-top:20px}.prototype-footer{border-top:1px solid var(--line)}[hidden]{display:none!important}
@media(min-width:1500px){.hero{padding-block:115px}.wrap{max-width:1250px}}
@media(max-width:1100px){.wrap{width:calc(100% - 64px)}.hero{gap:36px}.hero h1{font-size:58px}.hero-lede{font-size:16px}.actions{gap:19px;flex-wrap:wrap}.evidence-map{padding:20px 16px}.evidence-layout,.product-section,.progress-section{gap:55px}.section-intro h2{font-size:36px}.card-heading{align-items:flex-start;flex-direction:column}.prototype-grid{gap:35px}}
@media(max-width:800px){.site-header{gap:20px;height:86px}.site-header nav{gap:18px}.header-link{padding-left:18px}.hero{grid-template-columns:1fr;gap:50px;padding-block:65px}.hero-copy{max-width:600px}.hero h1{font-size:68px}.hero-description{max-width:480px}.evidence-map{max-width:560px;width:100%;padding:26px;justify-self:center}.hero-lede{font-size:18px}.section{padding-block:65px}.pipeline{grid-template-columns:1fr 1fr;row-gap:32px}.pipeline li:nth-child(3){border-left:0;padding-left:0}.pipeline li:nth-child(2){padding-right:0}.pipeline p{min-height:65px}.pipeline h3{min-height:unset}.evidence-layout{grid-template-columns:1fr;gap:35px}.card-heading{flex-direction:row}.example-card{max-width:600px;width:100%}.product-section,.progress-section{grid-template-columns:1fr;gap:30px}.principle-strip .wrap{gap:15px}.principle-strip p{font-size:17px}.prototype-intro{align-items:flex-start;flex-direction:column;gap:15px}.prototype-grid{grid-template-columns:minmax(0,1fr) 230px;gap:25px}.source-rail{padding-left:20px}.site-footer{flex-wrap:wrap;gap:18px;padding-block:28px}.site-footer>span{margin-left:auto}}
@media(max-width:560px){.wrap{width:calc(100% - 40px)}.site-header{height:76px;gap:12px}.brand{font-size:24px}.brand-mark{width:27px;height:30px}.site-header nav{display:none}.header-link{margin-left:auto;padding-left:0;border:0;font-size:11px}.header-link span{margin-left:4px}.hero{padding-block:48px 50px;gap:38px}.hero h1{font-size:52px;letter-spacing:-2.3px;margin-block:22px}.hero-lede{font-size:16px}.hero-description{font-size:14px}.desktop-break{display:none}.actions{gap:20px;margin-top:27px}.button{font-size:12px;padding:13px 17px}.text-link{font-size:12px}.caption{max-width:320px}.evidence-map{padding:20px 15px}.map-top .eyebrow{font-size:8px;letter-spacing:1px}.map-node{padding:16px 12px;gap:9px}.map-node strong{font-size:12px}.map-node small{font-size:9px}.node-id{display:none}.map-leaves{gap:9px}.map-leaves .map-node{padding:12px 10px}.map-leaves strong{font-size:11px}.principle-strip .wrap{padding-block:18px}.principle-strip .wrap>span:first-child{font-size:8px;white-space:nowrap}.principle-strip p{font-size:15px}.mobile-break{display:block}.section{padding-block:50px}.section-intro h2{font-size:33px;letter-spacing:-.9px}.section-intro>p:not(.eyebrow){font-size:14px}.pipeline{margin-top:32px}.pipeline li{padding-right:16px}.pipeline li+li{padding-left:16px}.pipeline h3{font-size:14px}.pipeline p{font-size:12px;min-height:100px}.step-top{margin-bottom:17px}.step-note{font-size:8px;margin-top:10px}.section-note{font-size:10px}.example-card{padding:22px 20px}.card-heading{flex-direction:column;gap:8px}.example-card h3{font-size:29px;margin-top:20px}.finding{font-size:15px}.fact-grid{gap:18px 12px}.fact-grid dd{font-size:11px}.product-copy{font-size:14px}.contact-section{padding-block:52px}.contact-section h2{font-size:33px}.contact-section p:not(.eyebrow){max-width:280px;margin-inline:auto}.contact-section a{font-size:17px}.site-footer p{margin-left:auto;font-size:10px}.site-footer>span{margin-left:0;flex-basis:100%;font-size:10px}.prototype-banner{font-size:11px;padding:10px 18px}.prototype-grid{grid-template-columns:1fr;gap:28px;padding-top:25px}.source-rail{border-left:0;border-top:1px solid var(--line);padding:24px 0 0}.prototype-main{padding-top:25px}.prototype-grid h2{font-size:30px}.prototype-tabs a{padding:8px 12px}.prototype-intro h1{font-size:28px}.observation h3{font-size:15px}.answer-card{padding:19px}}
/* Language navigation shares the existing header; both landings use this stylesheet. */
.landing-header{gap:24px}
.header-actions{display:flex;align-items:center;gap:24px;margin-left:auto}
.site-header .language-switch{display:flex;align-items:center;gap:8px;margin:0;font-size:11px;white-space:nowrap}
.language-switch a{padding-block:8px}
.language-switch a[aria-current="page"]{color:var(--ink);font-weight:650;text-decoration:underline;text-underline-offset:4px}
.language-switch>span{color:var(--soft)}
html:lang(ko){--serif:Batang,'Times New Roman',serif}
html:lang(ko) body{word-break:keep-all;overflow-wrap:break-word}
html:lang(ko) h1{letter-spacing:-2px}
html:lang(ko) .eyebrow,html:lang(ko) .node-label,html:lang(ko) .step-note,html:lang(ko) .progress-label{letter-spacing:1px}
@media(max-width:900px){.landing-header>nav{display:none}}
@media(max-width:560px){.landing-header{gap:12px}.header-actions{flex-direction:column;align-items:flex-end;gap:0}.header-actions .header-link{margin:0}.site-header .language-switch{font-size:11px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}