/* d0re v2. Current-page design only: historical pages do not load this stylesheet. */
html[data-v2],body.v2{--v2-paper:#f5f2e9;--v2-ink:#242820;--v2-muted:#65695e;--v2-line:#d5d5c8;--v2-accent:#a14c20;--v2-dark:#20271f;--v2-serif:'Newsreader',Georgia,serif;--v2-mono:'IBM Plex Mono',monospace;--v2-width:1320px;--v2-gutter:clamp(22px,4.5vw,72px);--v2-header:88px;}
html[data-v2]:not([data-v2-native]),body.v2:not(.v2-native){color-scheme:light;--paper:var(--v2-paper);--bg:var(--v2-paper);--panel:#faf8f1;--surface:var(--v2-paper);--surface-raised:#fcfaf5;--surface-deep:#ebe8dd;--ink:var(--v2-ink);--muted:var(--v2-muted);--soft:var(--v2-muted);--ink-muted:var(--v2-muted);--ink-soft:var(--v2-muted);--line:var(--v2-line);--rule:var(--v2-line);--blue:var(--v2-accent);--accent:var(--v2-accent);--accent-cool:var(--v2-accent);--accent-warm:#d49c62;--gold:#b66d37;--mint:#ede6d7;--font-serif:var(--v2-serif);--serif:var(--v2-serif);--font-mono:var(--v2-mono);--mono:var(--v2-mono);--on-ink:var(--v2-paper);--container:1320px;--gutter:var(--v2-gutter);--type-body-size:18px;--type-body-line:1.7;--type-nav-size:12px;--type-nav-tracking:0;--type-button-size:12px;--type-button-tracking:0;--type-eyebrow-size:12px;--type-status-size:12px;--type-caption-size:12px}
html[data-v2]{scroll-padding-top:110px;-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body.v2:not(.v2-native){margin:0;background:var(--v2-paper);color:var(--v2-ink);font:20px/1.6 var(--v2-serif);-webkit-font-smoothing:antialiased}
body.v2 *,body.v2 *::before,body.v2 *::after{box-sizing:border-box}
body.v2:not(.v2-native) h1,body.v2:not(.v2-native) h2,body.v2:not(.v2-native) h3{font-family:var(--v2-serif);font-weight:400;letter-spacing:-.035em;text-wrap:balance}
body.v2:not(.v2-native) h1{font-size:clamp(48px,6.8vw,102px);line-height:1.02}
body.v2:not(.v2-native) h2{line-height:1.1}body.v2:not(.v2-native) p{line-height:1.6}
body.v2:not(.v2-native) a{color:inherit;text-underline-offset:5px}
body.v2:not(.v2-native) button,body.v2:not(.v2-native) input,body.v2:not(.v2-native) select,body.v2:not(.v2-native) textarea{font-family:var(--v2-mono)}
body.v2 :is(a,button,input,select,summary,textarea):focus-visible{outline:2px solid var(--v2-accent);outline-offset:5px}
body.v2:not(.v2-native) button,body.v2 summary{cursor:pointer}
body.v2 [hidden]{display:none!important}
body.v2 ::selection{background:#e6c7a8;color:var(--v2-ink)}
.v2-wrap{width:min(var(--v2-width),calc(100% - 2*var(--v2-gutter)));margin-inline:auto}
body.v2 .v2-header{position:sticky;top:0;z-index:100;display:block;width:100%;height:auto;min-height:var(--v2-header);margin:0;padding:0;border:0;border-bottom:1px solid var(--v2-line);background:var(--v2-paper);color:var(--v2-ink);transform:none;backdrop-filter:none;font:12px/1.5 var(--v2-mono)}
.v2-header-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;min-height:var(--v2-header)}
.v2-logo{display:inline-flex;align-items:center;gap:12px;text-decoration:none!important;flex:none}
.v2-logo img{display:block;width:30px;height:30px;filter:brightness(0);margin:0}
.v2-logo strong{font:500 25px/1 var(--v2-serif);letter-spacing:-.06em}
.v2-logo small{display:block;font:10px/1.5 var(--v2-mono);color:var(--v2-muted);letter-spacing:.02em;margin-top:5px}
.v2-nav{display:flex;gap:26px;align-items:center;margin-left:auto}
.v2-nav a,.v2-menu-panel a{display:flex;align-items:center;min-height:44px;text-decoration:none;font:12px/1.5 var(--v2-mono);position:relative}
.v2-nav a[aria-current=page]:after{content:'';position:absolute;bottom:3px;height:2px;left:0;right:0;background:var(--v2-accent)}
.v2-nav a:hover,.v2-menu-panel a:hover{color:var(--v2-accent)}
.v2-header-actions{display:flex;gap:18px;align-items:center}
.v2-search-link{display:inline-flex;align-items:center;justify-content:center;gap:10px;text-decoration:none;min-height:44px;padding-left:22px;border-left:1px solid var(--v2-line);font:12px/1.5 var(--v2-mono)}
.v2-search-link svg{width:17px;height:17px;stroke:currentColor;fill:none;stroke-width:1.4}
.v2-menu{display:none;position:relative}
.v2-menu summary{list-style:none;display:flex;align-items:center;gap:14px;min-height:44px;font:12px var(--v2-mono)}
.v2-menu summary::-webkit-details-marker{display:none}.v2-menu summary:after{content:'+';font-size:22px;font-weight:300}.v2-menu[open] summary:after{content:'−'}
.v2-menu-panel{position:absolute;right:0;top:calc(100% + 15px);width:min(310px,calc(100vw - 44px));padding:20px 24px;border:1px solid var(--v2-line);background:var(--v2-paper);box-shadow:0 20px 50px #24282015;z-index:110}
.v2-menu-panel a{border-bottom:1px solid var(--v2-line);min-height:52px;justify-content:space-between}.v2-menu-panel a:last-child{border-bottom:0}
.v2-skip{position:fixed;top:-90px;left:20px;z-index:200;background:var(--v2-ink);color:var(--v2-paper)!important;padding:12px 20px;font:13px var(--v2-mono)}.v2-skip:focus{top:12px}
body.v2 .v2-footer{display:block;position:static;margin:0;padding:64px 0 28px;border-top:1px solid var(--v2-line);background:var(--v2-paper);color:var(--v2-ink);font:12px/1.7 var(--v2-mono);width:100%;max-width:none;transform:none}
.v2-footer-top{display:grid;grid-template-columns:1.5fr 1fr;gap:60px;padding-bottom:54px}.v2-footer-top p{font:30px/1.2 var(--v2-serif);max-width:460px;margin:22px 0 0;letter-spacing:-.02em}
.v2-footer-nav{display:grid;grid-template-columns:1fr 1fr;gap:4px 35px}.v2-footer-nav a{display:flex;align-items:center;min-height:44px;text-decoration:none;font:12px var(--v2-mono)}
.v2-footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:22px;border-top:1px solid var(--v2-line);color:var(--v2-muted)}
.v2-footer-bottom p{margin:0;font:11px/1.7 var(--v2-mono)}
.v2-kicker{font:12px/1.5 var(--v2-mono);letter-spacing:.065em;text-transform:uppercase;color:var(--v2-muted);margin:0 0 24px}
.v2-kicker b{font-weight:400;color:var(--v2-accent)}
.v2-section{padding-block:88px;border-top:1px solid var(--v2-line)}
.v2-section-heading{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:end;margin-bottom:48px}
.v2-section-heading h2{font-size:clamp(38px,4.4vw,64px);margin:0;max-width:560px}.v2-section-heading>p{font-size:21px;max-width:480px;color:var(--v2-muted);margin:0}
.v2-button{display:inline-flex;align-items:center;justify-content:space-between;gap:30px;min-height:52px;padding:15px 22px;background:var(--v2-ink);color:var(--v2-paper)!important;font:12px/1.6 var(--v2-mono);text-decoration:none;border:1px solid var(--v2-ink)}
.v2-button:hover{background:var(--v2-accent);border-color:var(--v2-accent)}
.v2-text-link{display:inline-flex;align-items:center;min-height:44px;gap:28px;font:12px/1.6 var(--v2-mono);text-decoration:none;border-bottom:1px solid currentColor}
.v2-hero{padding-top:42px;padding-bottom:56px}.v2-hero-meta{display:flex;justify-content:space-between;gap:22px;border-bottom:1px solid var(--v2-line);padding-bottom:22px}.v2-hero-meta p{font:11px/1.6 var(--v2-mono);color:var(--v2-muted);margin:0}
.v2-hero-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:55px;align-items:center;padding-block:54px 30px}
.v2-hero h1{font-size:clamp(60px,6.75vw,104px);letter-spacing:-.06em;line-height:.99;margin:0 0 30px;max-width:690px}
.v2-hero h1 em{font-weight:400;color:var(--v2-accent)}
.v2-hero-deck{font-size:23px;line-height:1.5;max-width:545px;color:var(--v2-muted);margin:0 0 30px}
.v2-hero-actions{display:flex;gap:26px;align-items:center;flex-wrap:wrap;margin-bottom:35px}
.v2-author{font:11px/1.7 var(--v2-mono);color:var(--v2-muted);margin:0}.v2-author a{color:var(--v2-ink)}
.v2-orbit{margin:0;position:relative;min-width:0;aspect-ratio:1.04;display:grid;align-items:center;background:#eae9dd;border:1px solid var(--v2-line)}
.v2-orbit svg{width:100%;height:auto;display:block;overflow:visible}.v2-orbit .orbit-lines{transform-origin:260px 235px;animation:v2-orbit 48s linear infinite;animation-play-state:paused}.v2-orbit.is-moving .orbit-lines{animation-play-state:running}
.v2-orbit figcaption{font:10px/1.6 var(--v2-mono);position:absolute;bottom:20px;left:22px;color:var(--v2-muted);max-width:250px}
.v2-motion{position:absolute;right:18px;top:15px;background:none;border:0;border-bottom:1px solid var(--v2-line);font:10px/1.5 var(--v2-mono);color:var(--v2-muted);min-height:44px;padding:5px}
@keyframes v2-orbit{to{transform:rotate(360deg)}}
.v2-metrics{display:grid;grid-template-columns:repeat(4,1fr);border-block:1px solid var(--v2-line);margin-top:32px}.v2-metrics a{text-decoration:none;padding:25px 20px 24px 0;display:block}.v2-metrics a+a{border-left:1px solid var(--v2-line);padding-left:28px}.v2-metrics strong{display:block;font:42px/1 var(--v2-serif);letter-spacing:-.04em}.v2-metrics span{display:block;font:11px/1.5 var(--v2-mono);color:var(--v2-muted);margin-top:8px}
.v2-feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}.v2-feature{min-width:0}.v2-feature-visual{height:220px;background:#e8e9df;position:relative;overflow:hidden;margin-bottom:26px;display:grid;place-items:center}.v2-feature-visual svg{width:90%;height:90%}.v2-feature:nth-child(2) .v2-feature-visual{background:#20271f;color:#d7dace}.v2-feature:nth-child(3) .v2-feature-visual{background:#e6d8c4}.v2-feature .v2-kicker{margin:0 0 12px}.v2-feature h3{font-size:36px;line-height:1.1;margin:0 0 15px}.v2-feature p:not(.v2-kicker){font-size:19px;color:var(--v2-muted);margin:0 0 20px}.v2-feature a{font:12px/1.5 var(--v2-mono)}
.v2-trail-list{border-top:1px solid var(--v2-line)}.v2-trail-row{display:grid;grid-template-columns:70px 1fr 45px;gap:30px;align-items:start;padding:28px 0;border-bottom:1px solid var(--v2-line);text-decoration:none}.v2-trail-row>span{font:12px/1.6 var(--v2-mono);color:var(--v2-accent)}.v2-trail-row h3{font-size:32px;margin:0 0 10px;max-width:950px}.v2-trail-row p{font-size:19px;color:var(--v2-muted);margin:0}.v2-trail-row:hover h3{color:var(--v2-accent)}
.v2-method{background:#eae9de}.v2-method-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px}.v2-method-grid article{border-top:1px solid #b8bcac;padding-top:20px}.v2-method-grid span{font:12px var(--v2-mono);color:var(--v2-accent)}.v2-method-grid h3{font-size:28px;margin:25px 0 16px}.v2-method-grid p{font-size:19px;color:var(--v2-muted);margin:0}
.v2-person{display:grid;grid-template-columns:1.15fr 1fr;gap:90px}.v2-person h2{font-size:clamp(45px,5vw,72px);margin:0 0 30px}.v2-person p{font-size:23px;color:var(--v2-muted)}.v2-person-note{border-left:1px solid var(--v2-line);padding-left:38px}.v2-person-note blockquote{font:32px/1.25 var(--v2-serif);margin:0 0 20px}.v2-person-note small{font:12px/1.7 var(--v2-mono);color:var(--v2-muted)}
.v2-work-intro{padding-block:64px}.v2-work-intro h1{max-width:950px;margin:25px 0}.v2-work-intro p:not(.v2-kicker){font-size:24px;max-width:760px;color:var(--v2-muted)}.v2-subnav{display:flex;gap:30px;flex-wrap:wrap;padding-top:25px;margin-top:30px;border-top:1px solid var(--v2-line)}.v2-subnav a{font:12px/1.5 var(--v2-mono);min-height:44px;display:flex;align-items:center;text-decoration:none}
.v2-project-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-top:1px solid var(--v2-line);border-left:1px solid var(--v2-line)}.v2-project{border-bottom:1px solid var(--v2-line);border-right:1px solid var(--v2-line);padding:32px;display:flex;flex-direction:column;min-width:0;gap:18px}.v2-project .v2-kicker{margin:0}.v2-project h3{font-size:32px;margin:0}.v2-project p{font-size:19px;color:var(--v2-muted);margin:0}.v2-project a{margin-top:auto;padding-top:8px;font:12px/1.5 var(--v2-mono);min-height:44px}.v2-project small{font:11px/1.6 var(--v2-mono);color:var(--v2-muted)}
/* Shared reading vocabulary, applied after each page's functional layout. */
body.v2:not(.v2-native) .shell{width:min(var(--v2-width),calc(100% - 2*var(--v2-gutter)))}
body.v2:not(.v2-native) :is(.eyebrow,.kicker,.paper-kicker,.record-kicker,.context-basis,.record-meta,.badge,.text-link,.trail-note,.portfolio-provenance){font-family:var(--v2-mono);font-size:12px;letter-spacing:.025em}
body.v2 :is(.library-hero,.portfolio-hero){padding-top:58px}.v2-library .library-hero-grid{gap:70px}.v2-library .library-deck{font-size:24px}.v2-library .reading-contract{background:#ebe9dd;padding-inline:22px}
body.v2:not(.v2-native) :is(.path-card,.method-card,.record-access){background:#eeece2}.v2-library .path-card{border-color:var(--v2-line);padding:28px;min-height:290px}.v2-library .path-card h3{font-size:31px}.v2-library .path-card p{font-size:19px}.v2-library .path-grid{gap:0}.v2-library .record-card{padding-block:30px}.v2-library .record-card h3{font-size:32px}.v2-library .record-excerpt{font-size:21px}
body.v2 .library-portfolio{background:var(--v2-dark);color:var(--v2-paper)}body.v2 .library-portfolio .eyebrow{color:#c4c8b8}body.v2:not(.v2-native) .button-primary{background:var(--v2-ink);color:var(--v2-paper)}body.v2:not(.v2-native) .button-primary:hover{background:var(--v2-accent)}
.v2-about .portfolio-method{background:#ebe9dd}.v2-about .method-card{background:none}.v2-about .portfolio-sections{font:12px var(--v2-mono)}.v2-about .portfolio-project{background:none}
body.v2 :is(.paper-masthead,.masthead,.library-header,.d0-reading-header){display:none}
.v2-reader .paper-shell{width:min(1320px,calc(100% - 2*var(--v2-gutter)));padding-top:60px}.v2-reader .paper-content{font-size:21px}.v2-reader .paper-header{max-width:1080px}.v2-reader .paper-header h1{font-size:clamp(44px,5.8vw,80px)}.v2-reader .paper-tools{font-size:12px}.v2-reader .paper-sidebar{top:110px}
.v2-research .edition{max-width:1464px;padding-inline:var(--v2-gutter)}.v2-research .article-body{font-family:var(--v2-serif);font-size:21px}.v2-research .deck{font-family:var(--v2-serif);font-size:23px}.v2-research .article-shell{padding-inline:var(--v2-gutter)}
.v2-reading .doc{padding-top:60px}.v2-reading main{min-height:50vh}.v2-reading .lede,.v2-reading .lead{font-size:23px}.v2-reading :is(.doc-body,.prose){font:21px/1.7 var(--v2-serif)}
.v2-atlas .main{margin-left:0;width:min(1500px,calc(100% - 2*var(--v2-gutter)));margin-inline:auto}.v2-atlas .atlas-edition-note{position:static;margin:0;padding:22px var(--v2-gutter);background:#e9e5d8;color:var(--v2-ink)}.v2-atlas .hero-stage{min-height:560px}.v2-atlas .overview{padding-top:50px}.v2-atlas :is(.hero-masthead,.hero-stage){margin-left:0}.v2-atlas .table-scroll{position:relative}
/* The journey retains a local chapter strip, distinct from the global navigation. */
.v2-journey .site-header{position:sticky;top:var(--v2-header);left:auto;right:auto;transform:none;width:100%;height:48px;background:var(--v2-paper);border-bottom:1px solid var(--v2-line);color:var(--v2-ink);z-index:50;--ink:var(--v2-ink);--ink-muted:var(--v2-muted);--surface:var(--v2-paper)}
.v2-journey .site-header .brand,.v2-journey .site-header .site-nav,.v2-journey .site-header .menu{display:none}.v2-journey .hdr-row{height:48px;min-height:48px;padding:0 var(--v2-gutter);display:flex;justify-content:space-between}.v2-journey .levels{display:flex;gap:clamp(12px,3vw,36px);margin:0}.v2-journey .levels a{font:12px var(--v2-mono);min-height:44px;display:flex;align-items:center}.v2-journey .hdr-right{margin:0}.v2-journey .gauge{font:12px var(--v2-mono)}.v2-journey .hdr-progress{display:none}.v2-journey .hero{margin-top:0;background:var(--v2-dark);--ink:#f5f2e9;--ink-muted:#c5cabb;--ink-soft:#afb7a4;--surface:#20271f;--surface-deep:#20271f;--surface-raised:#2a3329;color:#f5f2e9}.v2-journey .chapter{background:var(--v2-paper);color:var(--v2-ink);--surface:var(--v2-paper);--ink:var(--v2-ink);--ink-muted:var(--v2-muted);--ink-soft:var(--v2-muted);--line:var(--v2-line);padding-block:90px}.v2-journey .fig-plate{background:var(--v2-dark)}.v2-journey .fig-caption{font:12px/1.7 var(--v2-mono)}.v2-journey .chapter h2{font-size:clamp(42px,5vw,72px)}.v2-journey .chapter p{font-size:20px}.v2-journey .library-card{background:#ebe9dd;color:var(--v2-ink);border-color:var(--v2-line)}
.v2-systems .site-header{display:none}.v2-systems .chapter{background:var(--v2-paper);color:var(--v2-ink);--ink:var(--v2-ink);--ink-muted:var(--v2-muted);--surface:var(--v2-paper);--surface-deep:#ebe9df;--line:var(--v2-line)}.v2-systems .chapter.hero{min-height:calc(100svh - 88px);padding-top:65px}.v2-systems .chapter-copy>p:not(.eyebrow){font-family:var(--v2-serif);font-size:23px}.v2-systems .chapter-copy h1{font-size:clamp(56px,7vw,102px)}.v2-systems .chapter-copy h2{font-size:clamp(40px,4.6vw,67px)}.v2-systems .story-figure{border:1px solid var(--v2-line)}.v2-systems .reading-progress{display:none}
.v2-engine .engine-header{height:56px;padding-inline:var(--v2-gutter);justify-content:flex-end;background:#ebe9df}.v2-engine .engine-header .brand,.v2-engine .engine-header .site-nav{display:none}.v2-engine .workbench-intro{height:auto;min-height:155px;padding-inline:var(--v2-gutter)}.v2-engine .workbench-description{font-family:var(--v2-serif);font-size:20px}.v2-engine .engine-layout{height:calc(100dvh - 300px);min-height:650px}.v2-engine .workbench-heading h1{font-size:46px}.v2-engine .world{--ink:#f1f2ea;color:#f1f2ea}.v2-engine .inspector :is(p,.control-help,.guide-steps p){font-size:13px}.v2-engine .inspector .eyebrow{font-size:11px}
.v2-lab{overflow-x:clip}.v2-lab>.v2-header{position:relative}.v2-lab>main,.v2-lab>#complete-periodic-atlas{margin-block:40px}.v2-lab .v2-lab-label{padding:22px var(--v2-gutter);border-bottom:1px solid var(--v2-line);display:flex;justify-content:space-between;gap:20px;font:12px/1.6 var(--v2-mono);color:var(--v2-muted)}.v2-lab-label a{color:var(--v2-ink);font:inherit}.v2-lab .shell{max-width:1400px}.v2-lab .v2-footer{margin-top:40px}
.v2-film .journey-header{display:none}.v2-film .reading-progress{top:88px}.v2-film .chapter{scroll-margin-top:110px}.v2-film .journey-intro{padding-top:55px}
.v2-404 .not-found{min-height:65vh}
@media(min-width:1600px){.v2-hero-grid{gap:95px}}
@media(max-width:1100px){.v2-header-inner{gap:20px}.v2-nav{gap:20px}.v2-logo small{display:none}.v2-hero-grid{gap:30px}.v2-hero h1{font-size:clamp(56px,7.2vw,82px)}.v2-section-heading{gap:35px}.v2-feature-grid{gap:22px}.v2-feature-visual{height:185px}.v2-project{padding:25px}.v2-search-link span{display:none}}
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.v2-search-link{min-width:44px}

/* Shared chrome is self-contained; native instruments and the film keep their own palette,
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body.v2 :is(.v2-header,.v2-footer,.v2-colophon,.v2-lab-label){color-scheme:light}
body.v2 :is(.v2-header,.v2-footer,.v2-colophon,.v2-lab-label) a{color:inherit}
body.v2 :is(.v2-header,.v2-footer) :is(p,div,span){color:inherit}
body.v2 .v2-footer-bottom{color:var(--v2-muted)}
body.v2 .v2-footer-top p{font:30px/1.2 var(--v2-serif)}
body.v2 .v2-footer-bottom p{font:11px/1.7 var(--v2-mono)}
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body.v2 .v2-menu summary::after{color:var(--v2-ink)}
/* These transparent canvases draw light labels. Keep the decorative gradient on
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/* The paper's continuous/discrete series keep distinct colours on a light page. */
.v2-reading .page{--accent-warm:#8b451b;--accent-cool:#286056}
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}
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