@font-face{font-family:Bitter;src:url('./assets/fonts/bitter-var.woff2') format('woff2');font-weight:100 900;font-display:swap}
@font-face{font-family:Figtree;src:url('./assets/fonts/figtree-var.woff2') format('woff2');font-weight:100 900;font-display:swap}
:root{--navy:#0f1a3c;--ink:#26314c;--muted:#62687a;--paper:#f6f4ed;--line:#dcdcd4;--gold:#95661b;--accent:#c6892f;--serif:Bitter,Georgia,serif;--sans:Figtree,system-ui,sans-serif}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:32px}
body{margin:0;color:var(--ink);background:radial-gradient(ellipse at 12% 5%,#e5e8e3 0,transparent 48%),radial-gradient(ellipse at 94% 14%,#eee4d3 0,transparent 42%),var(--paper);font-family:var(--sans);font-size:17px;line-height:1.65}
body[data-chapter="assistant"]{--accent:#287b78}
body[data-chapter="system"]{--accent:#3b678a}
body[data-chapter="cognition"]{--accent:#845467}
body[data-chapter="closing"]{--accent:#89632a}
a{color:inherit;text-decoration-thickness:1px;text-underline-offset:.22em}
a:hover{color:var(--gold)}
button,input{font:inherit}
button{cursor:pointer;color:inherit}
button:disabled{cursor:default;opacity:.38}
a,button,input,summary{ -webkit-tap-highlight-color:transparent}
:focus-visible{outline:3px solid var(--accent);outline-offset:5px}
button{border:0;background:none}
button:hover:not(:disabled){color:var(--gold)}
[hidden]{display:none!important}
p,h1,h2,h3,h4{margin:0}
h1,h2,h3,h4{color:var(--navy)}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:0}
.skip-link{position:fixed;left:20px;top:-100px;z-index:100;background:var(--navy);color:white;padding:12px 20px}
.skip-link:focus{top:10px}
.site-header{display:flex;align-items:center;gap:28px;max-width:1660px;margin:auto;padding:24px 40px;border-bottom:1px solid #cfd0c7}
.wordmark{font-family:var(--serif);font-size:19px;line-height:1.2;text-decoration:none;letter-spacing:-.6px}
.wordmark span{display:block;font-size:24px;color:var(--gold)}
.edition{border-left:1px solid #c4c8c4;padding-left:25px;line-height:1.35}
.edition>span,.label,.source-meta{font-size:11px;font-weight:650;letter-spacing:1.5px;text-transform:uppercase}
.edition>span{color:var(--gold)}
.edition>p{font-size:15px;margin-top:3px}
.site-header nav{margin-left:auto;display:flex;align-items:center;gap:25px;font-size:13px}
.site-header nav a{text-decoration:none}
.contents-button{border:1px solid #babeb6;border-radius:3px;padding:7px 13px;font-size:13px}
.contents-button span{margin-left:15px;font-size:12px}
.download{white-space:nowrap}
.download span{margin-left:8px}
.reader-layout{max-width:1660px;padding:32px 40px 85px;margin:0 auto;display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);gap:52px;align-items:start}
.visual-column{align-self:stretch;min-width:0}
.visual-sticky{position:sticky;top:22px}
.viewer-heading{display:flex;align-items:center;justify-content:space-between;gap:15px;margin:0 0 12px}
.viewer-heading .label{font-size:9px;color:var(--accent);letter-spacing:1.2px}
.viewer-heading a{font-size:10px;text-decoration:none;white-space:nowrap}
.player{position:relative;aspect-ratio:16/9;background:#0c132c;border-radius:5px;overflow:hidden;box-shadow:0 14px 44px -22px #101c3b88;border:1px solid #1d2944}
.player iframe{display:block;border:0;width:100%;height:100%;background:#0c132c}
#viewer-error{position:absolute;inset:auto 15px 15px;padding:12px;background:#f6f4ed;color:var(--navy);font-size:13px}
.beat-controls{display:flex;align-items:center;justify-content:center;gap:4px;margin-top:15px;position:relative;padding-right:72px;padding-left:72px;min-height:34px}
.beat-controls>button:not(#expand-player){width:36px;height:32px;border:1px solid #cfd0c7;border-radius:4px;font-size:20px;line-height:1}
.beat-controls #beat-status{font-size:11px;letter-spacing:.4px;min-width:86px;text-align:center;color:var(--muted)}
#expand-player{position:absolute;right:0;font-size:10px;padding:5px 0 5px 12px}
.viewer-hint{font-size:11px;color:var(--muted);text-align:center;margin:10px 0 22px}
.slide-controls{border-top:1px solid #ced0c7;display:grid;grid-template-columns:1fr 1fr}
.slide-controls button{padding:20px 14px 22px 0;text-align:left;display:flex;flex-direction:column;gap:8px;font-size:13px;line-height:1.3}
.slide-controls button:last-child{text-align:right;padding-left:14px;padding-right:0;align-items:flex-end}
.slide-controls small{font-family:var(--serif);font-size:14px;color:#465069;font-weight:440;max-width:240px;line-height:1.35}
.progress-line{height:2px;background:#d5d8d1;overflow:hidden}
.progress-line span{display:block;height:100%;background:var(--accent);width:2.7%;transition:width .4s ease}
.position{font-size:10px;color:var(--muted);letter-spacing:1px;margin-top:9px;text-transform:uppercase;display:flex;justify-content:space-between;width:100%;padding:0}
.position span:last-child{text-transform:none;letter-spacing:0}
.article-navigation{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);margin-top:35px;padding-top:20px;font-size:12px}
.article-navigation a:last-child{text-align:right;margin-left:auto}
.reading-column{min-width:0}
.slide-article{display:none;border-top:2px solid var(--accent);padding-top:22px}
.slide-article.active{display:block}
.article-kicker{font-size:10px;letter-spacing:1.3px;text-transform:uppercase;font-weight:600;color:var(--accent);display:flex;align-items:center;gap:12px}
.slide-number{width:29px;height:29px;display:inline-flex;align-items:center;justify-content:center;border:1px solid color-mix(in srgb,var(--accent),transparent 50%);border-radius:50%;font-size:10px;letter-spacing:0}
.slide-article h2{font-family:var(--serif);font-size:clamp(27px,2.5vw,38px);font-weight:490;line-height:1.18;letter-spacing:-.9px;margin:18px 0}
.slide-article .summary{font-family:var(--serif);font-size:20px;line-height:1.55;font-weight:420;color:#32405b;margin-bottom:25px}
.explanation p{font-size:16px;line-height:1.75;margin:0 0 19px}
.takeaway{padding:22px 23px;margin:28px 0;background:#e8ece7;border-left:2px solid var(--accent)}
.takeaway .label{color:var(--accent);font-size:9px;letter-spacing:1.25px;margin-bottom:8px}
.takeaway p:last-child{font-family:var(--serif);font-size:17px;line-height:1.65}
.look-for{font-size:13px;color:var(--muted);line-height:1.7}
.look-for strong{font-weight:600;color:var(--ink)}
.lecture-passages{margin:22px 0 0;padding:13px 16px;border:1px solid var(--line);border-radius:3px;font-size:13px}
.lecture-passages>summary{font-weight:600}
.lecture-passages .timing-note{font-size:11px;color:var(--muted);margin:12px 0}
.lecture-passages ul{list-style:none;margin:0;padding:0}
.lecture-passages li{margin:12px 0;line-height:1.6}
.lecture-passages li span{display:block;color:var(--muted);font-size:12px;margin-top:3px}
.recording-link{color:var(--gold)}
.slide-article h3{font-family:var(--serif);font-size:23px;letter-spacing:-.4px;font-weight:480;line-height:1.3;margin:0 0 12px}
.annotations,.sources,.timeline-reading{margin-top:42px}
.annotation{display:grid;grid-template-columns:23px minmax(0,1fr);gap:14px;border-top:1px solid var(--line);padding:19px 0 18px}
.annotation-number{font-size:10px;color:var(--accent);font-weight:600;padding-top:4px}
.annotation h4{font-size:16px;font-weight:620;line-height:1.4;margin-bottom:6px}
.annotation p{font-size:14px;line-height:1.7}
.annotation-links{display:flex;align-items:center;flex-wrap:wrap;gap:7px 14px;margin-top:10px}
.reference-link,.beat-link{font-size:11px;line-height:1.5;color:var(--gold);padding:0}
.beat-link{text-align:left;text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:.25em}
.reference-link:hover,.beat-link:hover{color:var(--navy)}
.section-intro{color:var(--muted);font-size:12px;line-height:1.6;margin:0 0 20px}
.source-list{margin:0;padding:0;list-style:none;counter-reset:source}
.source{margin:0;padding:18px 0 19px 28px;border-top:1px solid var(--line);position:relative;counter-increment:source;scroll-margin-top:30px}
.source:before{content:counter(source,decimal-leading-zero);font-size:10px;color:var(--accent);position:absolute;left:0;top:20px}
.source:target{background:#ebe5d2;box-shadow:12px 0 #ebe5d2,-12px 0 #ebe5d2}
.source-meta{font-size:9px;letter-spacing:.8px;color:var(--muted);line-height:1.6}
.source h4{font-family:var(--serif);font-size:16px;font-weight:480;line-height:1.5;margin:6px 0}
.source>p:last-child{font-size:13px;line-height:1.7}
.slide-text{margin-top:30px;border:1px solid #d5d8cf;border-radius:3px;font-size:13px;padding:13px 17px}
summary{cursor:pointer}
.slide-text>summary{font-weight:550}
.text-beat{margin-top:18px;padding-top:14px;border-top:1px solid var(--line)}
.text-beat h4{font-size:10px;color:var(--accent);letter-spacing:1px;text-transform:uppercase}
.text-beat ul{margin:10px 0;padding-left:19px}
.text-beat li{margin:6px 0}
.text-context{font-size:11px;font-style:italic;color:var(--muted)}
.milestone{border-top:1px solid var(--line)}
.milestone:last-child{border-bottom:1px solid var(--line)}
.milestone summary{display:flex;gap:16px;position:relative;padding:17px 18px 17px 0;list-style:none}
.milestone summary::-webkit-details-marker{display:none}
.milestone summary:after{content:'+';position:absolute;right:0;font-size:16px;line-height:1.4;color:var(--accent)}
.milestone[open] summary:after{content:'−'}
.milestone .year{font-family:var(--serif);font-size:18px;min-width:53px;color:var(--accent);font-weight:500}
.milestone strong{display:block;font-size:15px;line-height:1.5;font-weight:600}
.milestone small{display:block;font-size:12px;line-height:1.6;color:var(--muted);margin-top:4px}
.milestone-body{padding:0 12px 20px 69px}
.milestone-source{font-size:12px;line-height:1.75;margin-top:12px}
.reader-footer{max-width:1580px;margin:0 auto;display:flex;justify-content:space-between;gap:20px;border-top:1px solid #cad0c7;padding:24px 0 32px;font-size:11px;color:var(--muted)}
.reader-footer p:last-child{display:flex;gap:14px}
dialog{color:var(--ink);background:var(--paper);border:1px solid #bbbfb5;border-radius:7px;width:820px;max-width:calc(100vw - 40px);max-height:calc(100dvh - 60px);padding:30px 34px;box-shadow:0 24px 80px #050c274d}
dialog::backdrop{background:#0a1239a6;backdrop-filter:blur(6px)}
dialog>header{display:flex;justify-content:space-between;align-items:center;gap:20px}
dialog .label{font-size:10px;color:var(--gold)}
dialog h2{font-family:var(--serif);font-weight:450;font-size:33px;letter-spacing:-1px}
#close-contents{font-size:32px;width:42px;height:42px}
.search-label{display:block;font-size:11px;color:var(--muted);margin:22px 0 5px}
#slide-search{display:block;background:#fffdf7;border:1px solid #bec4b8;border-radius:3px;padding:12px 14px;width:100%;font-size:15px;color:var(--ink)}
#search-result{font-size:11px;min-height:19px;color:var(--muted);margin:6px 0 17px}
.toc-chapter{margin-bottom:25px;break-inside:avoid}
.toc-description{font-family:var(--serif);font-size:17px;margin:4px 0 10px;color:var(--navy)}
.toc-chapter ol{list-style:none;margin:0;padding:0}
.toc-chapter a{display:flex;align-items:baseline;gap:14px;font-size:14px;text-decoration:none;border-bottom:1px solid var(--line);padding:8px 4px}
.toc-chapter a span{font-size:10px;color:var(--muted)}
.toc-chapter a:hover,.toc-chapter a[aria-current="page"]{background:#e4e8df;color:var(--navy)}
.toc-chapter a[aria-current="page"]{box-shadow:-3px 0 var(--accent)}
.visual-sticky:fullscreen,.visual-sticky.expanded{display:flex;flex-direction:column;background:var(--paper);padding:20px 32px;width:100vw;height:100dvh;max-width:none;overflow:auto}
.visual-sticky:fullscreen .player,.visual-sticky.expanded .player{flex:1;aspect-ratio:auto;min-height:0;border:0;box-shadow:none}
.visual-sticky:fullscreen .slide-controls,.visual-sticky:fullscreen .viewer-hint,.visual-sticky:fullscreen .position,.visual-sticky:fullscreen .progress-line,.visual-sticky.expanded .slide-controls,.visual-sticky.expanded .viewer-hint,.visual-sticky.expanded .position,.visual-sticky.expanded .progress-line{display:none}
.visual-sticky:fullscreen .viewer-heading,.visual-sticky.expanded .viewer-heading{flex-shrink:0}
.visual-sticky.expanded{position:fixed;inset:0;z-index:50}
body.viewer-expanded{overflow:hidden}
.guide{max-width:900px;padding:36px 40px 0;margin:auto}
.guide .slide-article{display:block;margin-top:70px}
.guide .guide-index{columns:2;gap:35px}
.guide .beat-link{display:none}
.guide .slide-article:last-child{margin-bottom:70px}
.guide .slide-article h2{font-size:35px}
.guide .explanation p{font-size:17px}
@media(min-width:1700px){.reader-layout{gap:65px;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr)}}
@media(max-width:1200px){.reader-layout{gap:32px;padding-left:28px;padding-right:28px;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr)}.site-header{padding-left:28px;padding-right:28px}.viewer-heading{align-items:flex-start;flex-direction:column;gap:4px}.reader-footer{margin-left:28px;margin-right:28px}.site-header nav{gap:18px}.slide-article h2{font-size:30px}.slide-article .summary{font-size:19px}}
@media(max-width:900px){.reader-layout{grid-template-columns:1fr;gap:40px;max-width:760px}.visual-sticky{position:static}.viewer-heading{flex-direction:row;align-items:center}.visual-column{min-width:0}.slide-article h2{font-size:36px}.site-header{gap:20px}.edition{display:none}.site-header nav{gap:20px}.reader-footer{font-size:10px}.guide{max-width:740px}.viewer-hint{margin-bottom:17px}.slide-controls button{padding-top:17px;padding-bottom:17px}}
@media(max-width:520px){.site-header{padding:18px 18px;gap:12px}.wordmark{font-size:15px}.wordmark span{font-size:19px}.site-header nav{gap:13px;font-size:11px}.site-header .download{display:none}.contents-button{font-size:11px;padding:6px 9px}.contents-button span{margin-left:8px}.reader-layout{padding:26px 18px 45px;gap:34px}.viewer-heading .label{font-size:8px;letter-spacing:.8px}.viewer-heading a{font-size:9px}.slide-controls small{font-size:12px}.slide-controls button{font-size:12px}.slide-article{padding-top:18px}.slide-article h2{font-size:30px}.slide-article .summary{font-size:19px}.explanation p{font-size:16px}.takeaway{padding:18px}.annotations,.sources,.timeline-reading{margin-top:34px}.annotation{gap:10px;grid-template-columns:20px minmax(0,1fr)}.reader-footer{margin:0 18px;padding:22px 0;flex-direction:column;gap:8px}.reader-footer p:last-child{gap:12px}dialog{max-width:calc(100vw - 20px);max-height:calc(100dvh - 20px);padding:23px 20px}dialog h2{font-size:27px}.guide{padding:26px 20px 0}.guide .guide-index{columns:1}.guide .slide-article h2{font-size:30px}.visual-sticky:fullscreen,.visual-sticky.expanded{padding:12px}.visual-sticky:fullscreen .viewer-heading a,.visual-sticky.expanded .viewer-heading a{display:none}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
@media print{
 @page{size:A4;margin:18mm}
 body{background:white;color:#202020;font-size:10pt;line-height:1.5}
 .site-header,.visual-column,dialog,.reader-footer,.skip-link,.guide-index,.beat-link,.article-navigation{display:none!important}
 .reader-layout,.guide{display:block;padding:0;max-width:none;margin:0}
 .slide-article{display:block!important;break-before:page;padding-top:0;border-top:none;margin:0!important}
 .slide-article:first-child{break-before:auto}
 .article-kicker{font-size:8pt}.slide-article h2,.guide .slide-article h2{font-size:22pt;margin:12px 0}
 .slide-article .summary{font-size:13pt}
 .explanation p,.guide .explanation p{font-size:10pt;line-height:1.5;margin-bottom:9pt}
 .takeaway{background:#f1f1ee;padding:10pt;margin:14pt 0;break-inside:avoid}
 .takeaway p:last-child{font-size:11pt}
 .annotations,.sources,.timeline-reading{margin-top:20pt}
 .slide-article h3{font-size:15pt}.annotation,.source{break-inside:avoid}
 .annotation{padding:10pt 0}.annotation p,.source>p:last-child{font-size:9pt}
 .source h4{font-size:10pt}.source h4 a:after{content:' (' attr(href) ')';display:block;font-family:var(--sans);font-size:8pt;font-weight:400;overflow-wrap:anywhere;color:#555}
 .reference-link{font-size:8pt}.slide-text{display:none}
 .milestone{break-inside:avoid}.milestone summary{padding:8pt 0}.milestone summary:after{display:none}
 .milestone-body{display:block!important;padding-bottom:10pt}
 details::details-content{content-visibility:visible!important;display:block}
 .milestone-source{font-size:8pt}.milestone-source a:after{content:' (' attr(href) ')';overflow-wrap:anywhere;color:#555}
}