:root{--paper:#f5f3ee;--ink:#242323;--muted:#65625f;--line:#dbd7d0;--purple:#645179;--lavender:#e5def0;--white:#fffefa}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.6;font-size:16px}a{color:inherit;text-underline-offset:5px}button,input,select,textarea{font:inherit}a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #7650a2;outline-offset:5px}.skip-link{position:absolute;left:15px;top:-80px;background:white;padding:12px;z-index:20}.skip-link:focus{top:10px}.site-header{max-width:1360px;margin:auto;min-height:106px;display:flex;align-items:center;gap:30px;padding:22px 48px;border-bottom:1px solid 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img{width:36px;height:36px}.site-header>.button{font-size:10px;padding:10px}.hero{grid-template-columns:1fr;padding:36px 20px;gap:28px}.hero h1{font-size:58px}.hero .lead{font-size:17px}.eyebrow{font-size:9px}.hero-art{max-width:560px}.actions{gap:20px}.ribbon{margin-inline:20px;flex-wrap:wrap;gap:12px;padding:18px 0}.ribbon span{font-size:11px}.cards,.split{grid-template-columns:1fr}.section{padding:50px 20px}.section-heading{margin-bottom:26px}.number{margin-bottom:18px}.support-band{margin:0 20px 42px;padding:28px;align-items:flex-start;flex-direction:column}.support-band h2{font-size:30px}.page-intro{padding:42px 20px 22px}.page-intro h1{font-size:44px}.article{padding:0 20px 50px}.policy{padding:42px 20px}.policy h1{font-size:44px}footer{margin-inline:20px;padding:30px 0;flex-direction:column}.table-wrap{margin-inline:-4px}th,td{padding:12px;font-size:12px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
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/* Fourfold's app palette: Theme.swift light appearance. */
:root{--paper:#F7F7F2;--ink:#26392E;--muted:#586651;--line:#DCE1D6;--purple:#715A8D;--lavender:#EFEBF4;--white:#FFFEFB;--green:#2F5D44;--soft-green:#E9EFDF;--gold:#80501D;--selected:#EFD39B}
body{background:radial-gradient(ellipse at 80% 18%,#e9efdf70,transparent 42%),var(--paper)}h1,h2{font-family:Georgia,'Times New Roman',serif;font-weight:400;letter-spacing:-.055em}h1 em{color:var(--green)}.button{background:#2F6B49;border-color:#2F6B49;border-radius:12px}.button:hover{background:#26392e}.button.light{color:var(--ink)}.dot{background:var(--green)}.hero{grid-template-columns:.8fr 1.2fr;padding-top:50px;gap:42px;align-items:center}.hero h1{font-size:clamp(58px,6.4vw,90px);line-height:1.04}.hero .lead{font-size:18px;max-width:380px}.hero .actions{gap:18px}.hero .fine{max-width:290px;line-height:1.9}.hero .eyebrow{color:var(--green);font-size:9px;letter-spacing:.17em}.card{border-radius:18px;background:#fffefba8}.support-band{background:#26392e;border-radius:20px}.ribbon span:before{color:var(--green)}thead th{background:var(--soft-green)}.article 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#2f6b4910}.scene-tag{font-size:7px;letter-spacing:.15em;color:var(--muted);white-space:nowrap}.explorer-toolbar{display:flex;justify-content:space-between;align-items:center;gap:10px}.segmented{display:flex;background:#dce1d680;padding:4px;border-radius:12px;gap:2px}.segmented button,.reset-view,.move-tabs button{border:0;background:transparent;color:var(--muted);cursor:pointer;font:inherit;font-size:12px;min-height:40px;padding:8px 12px;border-radius:9px}.segmented button{font-weight:650;transition:background .2s}.segmented button span{font-size:10px;font-weight:400;margin-left:4px}.segmented button[aria-pressed=true]{background:var(--white);color:var(--green);box-shadow:0 2px 7px #26392e10}.reset-view{font-size:17px;padding-inline:6px}.reset-view span{font-size:10px}.canvas-wrap{position:relative;margin-top:4px;background:radial-gradient(ellipse at 50% 48%,#fffefbe8 0%,#eff3e500 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#dce1d6;border-radius:16px;padding:14px}.move-tabs{display:flex;gap:7px;margin-bottom:16px}.move-tabs button{flex:1;font-size:11px;border:1px solid transparent;padding:5px}.move-tabs button span{font-size:19px;margin-right:5px}.move-tabs button[aria-pressed=true]{background:#e9efdf;color:var(--green);border-color:#cbd7c3}.lesson-content{display:flex;gap:15px;align-items:start}.lesson-content>div{flex:1}.lesson-kicker{color:var(--gold);font-size:8px;letter-spacing:.13em;font-weight:600;margin-bottom:8px}.lesson-content h3{font-family:Georgia,serif;font-weight:400;font-size:21px;line-height:1.25;margin-bottom:8px;letter-spacing:-.035em}.lesson-content p[data-lesson-copy]{font-size:11px;line-height:1.7;color:var(--muted);margin-bottom:14px}.play-example{border:1px solid #cbd7c3;border-radius:9px;color:var(--green);background:var(--soft-green);font-size:10px;padding:10px 12px;white-space:nowrap;cursor:pointer;min-height:40px;margin-top:17px}.coordinates{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}.coordinates span{display:flex;align-items:center;justify-content:center;gap:10px;background:#f1f3ec;border-radius:7px;padding:8px;font:11px ui-monospace,monospace;color:var(--muted)}.coordinates b{font-weight:500;font-size:9px;opacity:.8}.coordinates .changed{background:#efd39b60;color:var(--gold)}.move-state{font-size:9px;color:var(--muted);margin:10px 0 0;line-height:1.5;min-height:14px}.explorer-note{font-size:8px;line-height:1.6;color:var(--muted);margin:12px 3px 0}.dimension-story{display:grid;grid-template-columns:1fr 1.5fr;align-items:center;gap:70px;margin:65px 48px 0;padding:54px 50px;border-radius:24px;background:linear-gradient(120deg,#26392e,#1d2922);color:#e8efe4;overflow:hidden}.dimension-story h2{font-size:39px}.dimension-story p{color:#adbfa8;font-size:14px;max-width:500px}.dimension-story .eyebrow{font-size:9px;color:#a1d3a5}.dimension-story .text-link{color:#e8efe4}.story-number{font-family:Georgia,serif;font-size:clamp(42px,5.5vw,78px);letter-spacing:-.055em;white-space:nowrap;color:#e8eddf;text-shadow:0 0 40px #a1d3a525}.guide-explorer{max-width:950px;margin:0 48px 50px}.guide-explorer .dimension-explorer{padding:28px}.guide-explorer canvas{max-height:600px}.guide-explorer .lesson-content h3{font-size:28px}.guide-explorer .lesson-content p[data-lesson-copy]{font-size:14px}.guide-explorer .explorer-title{font-size:14px}.guide-explorer .move-state{font-size:11px}.guide-explorer .explorer-note{font-size:10px}.guide-explorer .explorer-controls label{font-size:12px}.no-script{font-size:13px}.dimension-explorer noscript img{width:100%;height:auto}
@media(max-width:1100px){.hero{gap:30px;grid-template-columns:.8fr 1.2fr}.hero h1{font-size:65px}.dimension-explorer{padding:16px}.scene-tag{display:none}.segmented button{padding:7px 10px}.segmented button span{display:none}.explorer-controls{gap:10px}.explorer-controls label{display:block}.explorer-controls input{display:block}.lesson-content{display:block}.play-example{margin:0 0 13px}.dimension-story{margin-inline:28px;padding:38px;gap:30px}.dimension-story h2{font-size:33px}.guide-explorer{margin-inline:28px}}
@media(max-width:700px){.hero{display:flex;flex-direction:column;align-items:stretch;padding:38px 20px;gap:30px}.hero h1{font-size:64px;max-width:500px}.hero .lead{max-width:500px}.hero .fine{max-width:100%}.dimension-explorer{padding:16px;border-radius:20px}.explorer-top{margin-bottom:13px}.explorer-title{font-size:10px}.segmented button span{display:inline;font-size:9px}.segmented button{padding:8px 11px}.reset-view span{display:none}.lesson-content h3{font-size:25px}.lesson-content p[data-lesson-copy]{font-size:13px}.lesson-kicker{font-size:9px}.move-tabs button{font-size:12px}.coordinates span{font-size:12px}.move-state{font-size:10px;min-height:30px}.explorer-note{font-size:9px}.play-example{font-size:12px;min-height:44px}.explorer-controls label{font-size:10px}.dimension-story{margin:20px 20px 0;padding:32px 26px;grid-template-columns:1fr;gap:20px}.story-number{font-size:53px}.dimension-story h2{font-size:32px}.guide-explorer{margin-inline:20px}.guide-explorer .dimension-explorer{padding:15px}.guide-explorer .explorer-controls label{font-size:10px}.guide-explorer .explorer-title{font-size:10px}.guide-explorer .lesson-content h3{font-size:25px}.section h2{font-size:36px}.site-header nav{scrollbar-width:thin}}@media(max-width:370px){.hero h1{font-size:56px}.segmented button{padding:7px 12px}.segmented button span{display:none}.coordinates span{gap:6px;padding:8px 5px;font-size:11px}.move-tabs{gap:2px}.explorer-title{font-size:9px}}
@media(prefers-reduced-motion:reduce){.segmented button{transition:none}}
.hero-copy{align-self:start;padding-top:95px}.article p,.article li,.policy p{color:var(--muted)}a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,summary:focus-visible{outline-color:var(--purple)}.coordinates output{color:inherit}.canvas-wrap canvas{user-select:none;-webkit-user-select:none}.scene-caption{pointer-events:none}.dimension-explorer button:hover{filter:brightness(.97)}@media(max-width:1100px){.hero-copy{padding-top:70px}.hero h1{font-size:clamp(48px,6.6vw,65px)}}@media(max-width:700px){.hero-copy{padding-top:0}.hero h1{font-size:64px}}@media(max-width:370px){.hero h1{font-size:56px}}
.explorer-controls{grid-template-columns:1fr 1fr 1.35fr;gap:15px}.explorer-controls label{display:block}.explorer-controls input{display:block}.coordinates output{white-space:nowrap}.coordinates span{gap:7px}.coordinates output{font-size:10px}@media(max-width:700px){.explorer-controls{gap:12px}.coordinates output{font-size:11px}.coordinates b{font-size:9px}.coordinates span{gap:5px}}@media(max-width:370px){.coordinates span{padding:8px 3px;gap:4px}.coordinates output{font-size:10px}}
/* Release highlights use the existing app palette and remain readable without JS. */
.release-strip{margin:0 48px 28px;padding:20px 24px;display:flex;align-items:center;gap:20px;border:1px solid var(--line);border-radius:14px;background:var(--white)}.release-strip .pill{margin:0;white-space:nowrap}.release-strip p{margin:0;flex:1;font-size:14px}.release-strip a{flex-shrink:0}@media(max-width:1100px){.release-strip{margin-inline:28px}}@media(max-width:700px){.release-strip{margin-inline:20px;padding:20px;align-items:flex-start;flex-direction:column;gap:12px}}