@font-face{font-family:Deck Sans;src:url('assets/lecture-sans.woff2') format('woff2');font-weight:100 900;font-display:swap}
:root{
 --ink:#1e1914;--paper:#fbf8f5;--accent:#b23a26;--ember:#ff795f;--muted:#706757;--line:#d8d0c7;--dark-muted:#c0b5a9;--dark-line:#4c4238;
 --stage-width:1920;--stage-height:1080;--stage-pad:96px;--header-height:350px;--body-height:440px;--gap:36px;--panel-pad:36px;
 --font-sans:'Deck Sans',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;--font-mono:ui-monospace,SFMono-Regular,Consolas,monospace;
 --display-size:126px;--title-size:72px;--body-size:34px;--small-size:25px;--label-size:22px;
 --leading-display:1.16;--leading-title:1.24;--leading-body:1.55;--tracking-display:-.04em;--tracking-title:-.025em;--tracking-label:.13em;
 
 --stage-back:#15120f;--paper-hover:#e8dcd1;--red-muted:#ffddd3;--red-line:#d47b6c;--case-mat:#f6e6c6;--overlay:#100d0bdd;--shadow:0 24px 100px #0009;--print-paper:#ffffff;
 --tracking-brand:.06em;--tracking-ui:.02em;--tracking-meta:.1em;--tracking-edition:.15em;--tracking-chapter:.08em;--motion-ui:180ms;
 --radius:12px;--ui-height:56px;--ui-gap:12px;--shell-pad:20px;--ease:cubic-bezier(.22,1,.36,1);
}
*{box-sizing:border-box}html{color-scheme:dark;background:var(--ink)}body{margin:0;background:var(--ink);color:var(--paper);font-family:var(--font-sans);line-height:var(--leading-body)}button,a{-webkit-tap-highlight-color:transparent}button{font:inherit}a{color:inherit;text-decoration-thickness:1px;text-underline-offset:5px}button,a{touch-action:manipulation}button:focus-visible,a:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--ember);outline-offset:5px}button:disabled{opacity:.38;cursor:default}button{cursor:pointer}h1,h2,h3,p,figure{margin:0}h1,h2,h3{text-wrap:balance;word-break:keep-all}h1{font-weight:800}h2,h3{font-weight:750}em{font-style:normal;color:var(--accent)}ul{padding:0;margin:0;list-style:none}.sr-only{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip-path:inset(50%);white-space:nowrap}.skip-link{position:fixed;left:16px;top:-70px;z-index:90;background:var(--paper);color:var(--ink);padding:12px}.skip-link:focus{top:10px}
.app-header,.toolbar{padding-inline:var(--shell-pad);display:flex;align-items:center;justify-content:space-between;gap:var(--ui-gap);height:var(--ui-height);background:var(--ink);position:relative;z-index:5}.app-header{border-bottom:1px solid var(--dark-line)}.brand{display:flex;align-items:center;gap:10px;font-size:12px;letter-spacing:var(--tracking-brand);text-decoration:none;white-space:nowrap}.brand-mark{color:var(--ember);font-family:var(--font-mono);font-size:22px;font-weight:700}.header-title{font-size:12px;color:var(--dark-muted);letter-spacing:var(--tracking-ui)}.header-actions{display:flex;gap:8px}.icon-button,.text-button,.nav-button{border:1px solid var(--dark-line);background:transparent;color:var(--paper);border-radius:6px;min-height:44px;display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:8px 12px;font-size:13px}.icon-button{width:44px;padding:10px}.icon-button svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}.text-button:hover,.icon-button:hover,.nav-button:not(:disabled):hover{background:var(--dark-line)}.nav-button.next{background:var(--paper);color:var(--ink);border-color:var(--paper)}.nav-button.next:not(:disabled):hover{background:var(--paper-hover)}.toolbar{border-top:1px solid var(--dark-line);height:72px;flex-wrap:nowrap}.nav-group,.progress-label{display:flex;align-items:center;gap:18px}.progress-label{min-width:0;font-size:12px;color:var(--dark-muted)}.current-part{white-space:nowrap}.position{font-family:var(--font-mono);white-space:nowrap;font-size:15px;color:var(--paper)}.position strong{color:var(--ember)}.segments{display:flex;flex:1;gap:7px;max-width:480px}.segment{height:44px;flex:1;background:transparent;border:0;position:relative;padding:0}.segment::after{content:'';position:absolute;left:0;right:0;height:3px;top:20px;background:var(--dark-line);transition:background var(--motion-ui)}.segment[data-past]::after{background:var(--accent)}.segment[aria-current=true]::after{height:5px;background:var(--ember)}.hint{font-size:12px;color:var(--dark-muted)}
/**** Unenhanced HTML is the complete reading edition. ****/
.stage{max-width:1920px;margin:auto}.slide{--surface:var(--paper);--fg:var(--ink);--secondary:var(--muted);--divider:var(--line);--signal:var(--accent);position:relative;padding:var(--stage-pad);background:var(--surface);color:var(--fg);overflow:hidden;width:1920px;min-height:1080px;border-bottom:1px solid var(--divider)}.dark{--surface:var(--ink);--fg:var(--paper);--secondary:var(--dark-muted);--divider:var(--dark-line);--signal:var(--ember)}.red{--surface:var(--accent);--fg:var(--paper);--secondary:var(--red-muted);--divider:var(--red-line);--signal:var(--paper)}.dark em,.red em{color:var(--signal)}.slide-head{height:var(--header-height);display:flex;flex-direction:column;align-items:flex-start}.eyebrow{font-family:var(--font-mono);font-size:var(--label-size);letter-spacing:var(--tracking-label);font-weight:600;color:var(--signal)}.eyebrow span{margin-left:38px;color:var(--secondary)}.title{font-size:var(--title-size);line-height:var(--leading-title);letter-spacing:var(--tracking-title);margin-top:28px;max-width:100%}.lead{font-size:var(--body-size);line-height:var(--leading-body);color:var(--secondary);margin-top:24px;word-break:keep-all}.content{height:var(--body-height)}.two{display:grid;grid-template-columns:1fr 1fr;gap:var(--gap)}.three{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}.panel{padding:var(--panel-pad);border:1px solid var(--divider);border-radius:var(--radius);display:flex;flex-direction:column;min-width:0;background:color-mix(in srgb,var(--surface),var(--fg) 3%)}.accent-panel{background:var(--ink);color:var(--paper);--secondary:var(--dark-muted);--divider:var(--dark-line);--signal:var(--ember)}.panel-kicker{font-family:var(--font-mono);font-size:var(--label-size);font-weight:600;letter-spacing:var(--tracking-brand);color:var(--signal)}.panel h3{font-size:48px;line-height:var(--leading-title);letter-spacing:var(--tracking-title);margin-top:28px}.panel p:not(.panel-kicker){font-size:var(--body-size);color:var(--secondary)}.panel-bottom{margin-top:auto!important;font-size:var(--small-size)!important;padding-top:20px}.panel .quote{font-size:64px!important;font-weight:750;color:var(--fg)!important;margin:auto 0}.question-stack{display:flex;flex-direction:column;gap:16px;font-size:52px;font-weight:700;margin-top:32px;line-height:var(--leading-title)}.takeaway{font-size:29px;color:var(--secondary);border-top:1px solid var(--divider);margin-top:24px;padding-top:20px;word-break:keep-all}.takeaway strong{color:var(--fg);font-weight:650}.slide-index{position:absolute;right:var(--stage-pad);bottom:28px;color:var(--secondary);font:18px var(--font-mono);letter-spacing:var(--tracking-meta)}.display{font-size:var(--display-size);line-height:var(--leading-display);letter-spacing:var(--tracking-display)}.display em{display:block}.hero{display:grid;grid-template-columns:1.65fr 1fr;gap:72px;align-items:center}.hero-copy{padding-bottom:30px}.hero .eyebrow{margin-bottom:64px}.hero-prelude{font-size:44px;margin-bottom:18px;color:var(--dark-muted)}.hero .lead{margin-top:34px}.hero-signature{display:flex;align-items:center;gap:30px;margin-top:62px}.tiny{font:18px var(--font-mono);letter-spacing:var(--tracking-meta);color:var(--dark-muted)}.hero-signature a{font-size:28px;text-decoration:none}.hero-signature a span{font-size:23px;color:var(--dark-muted);margin-left:14px}.hero-image{height:760px;position:relative;align-self:center;overflow:hidden;border-radius:var(--radius);border:1px solid var(--dark-line)}.hero-image img{width:100%;height:100%;object-fit:cover;display:block}.hero-image figcaption{position:absolute;inset:auto 34px 26px;display:flex;gap:20px;align-items:center;font:22px var(--font-mono);color:var(--paper)}.hero-image figcaption .rule{flex:1;height:1px;background:var(--ember)}.hero-edition{position:absolute;bottom:38px;left:var(--stage-pad);color:var(--dark-muted);font:18px var(--font-mono);letter-spacing:var(--tracking-edition)}.manifesto{display:flex;flex-direction:column;justify-content:center}.manifesto-title{font-size:155px;line-height:var(--leading-display);letter-spacing:var(--tracking-display);margin-top:65px}.manifesto-title em{display:block}.manifesto-line{height:8px;background:var(--accent);width:180px;margin-top:65px}.manifesto-bottom{display:flex;align-items:center;gap:60px;margin-top:66px;font-size:36px;color:var(--secondary)}.monogram{font:88px var(--font-mono);color:var(--accent)}.manifesto-bottom strong{font-weight:600;color:var(--ink)}
.media-panel{padding:40px;border-top:2px solid var(--ink);display:flex;flex-direction:column;align-items:flex-start}.media-panel h3{font-size:42px;line-height:var(--leading-title);letter-spacing:var(--tracking-title);margin-top:auto}.media-panel p{font-size:var(--small-size);color:var(--secondary);margin-top:10px}.media-frame{border:3px solid var(--accent);height:185px;width:138px;border-radius:14px;margin:32px auto;background:color-mix(in srgb,var(--accent),transparent 96%);position:relative}.media-frame span{display:block;width:52px;height:52px;border:2px solid var(--accent);border-radius:50%;position:absolute;left:50%;top:50%;transform:translate(-50%,-50%)}.media-frame.landscape{width:290px;height:164px;margin-top:42px;margin-bottom:43px}.media-frame.landscape span{border:0;border-radius:0;clip-path:polygon(15% 0,100% 50%,15% 100%);background:var(--accent);width:36px;height:42px}.text-frame{border:0;width:290px;height:164px;display:flex;flex-direction:column;justify-content:center;gap:20px}.text-frame span{position:static;transform:none;width:100%;height:10px;background:var(--accent);border:0;border-radius:0}.text-frame span:last-child{width:60%}.chapter{display:flex;flex-direction:column}.chapter-body{display:grid;grid-template-columns:1.2fr 1fr;gap:80px;align-items:center;flex:1}.chapter-body .display{max-width:960px}.chapter-number{display:flex;flex-direction:column;align-items:center}.chapter-number strong{font-size:430px;line-height:var(--leading-display);letter-spacing:var(--tracking-display);font-weight:250;color:var(--paper)}.chapter-number span{font:22px var(--font-mono);letter-spacing:var(--tracking-chapter)}.chapter-foot{display:flex;justify-content:space-between;border-top:1px solid var(--divider);padding-top:30px;font-size:28px;color:var(--secondary)}.chapter-title{font-size:120px;line-height:var(--leading-display);letter-spacing:var(--tracking-display);margin-top:70px}.chapter-title em{display:block}.chapter-flow{height:240px;margin-block:54px}.what-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:70px;align-items:stretch}.word-block{display:flex;flex-direction:column;justify-content:center;gap:14px}.word-block strong{font-size:150px;letter-spacing:var(--tracking-display);line-height:var(--leading-display);color:var(--ember)}.word-block span{font-size:30px;color:var(--secondary)}.prompt-stack{display:flex;flex-direction:column;gap:22px}.prompt{border:1px solid var(--divider);border-radius:var(--radius);padding:20px 36px}.prompt p{font-size:34px;line-height:var(--leading-title);margin-top:14px}.prompt small{display:block;font-size:23px;color:var(--secondary);margin-top:16px}.prompt.selected{background:var(--paper);color:var(--ink);--signal:var(--accent);--secondary:var(--muted)}.definition .word{font-size:96px;line-height:var(--leading-display);letter-spacing:var(--tracking-display);color:var(--accent);margin-top:22px}.definition h3{margin-top:12px;font-size:44px}.definition p{margin-top:12px}.flow{display:grid;gap:var(--gap)}.five{grid-template-columns:repeat(5,1fr)}.flow-node{position:relative;border-top:2px solid var(--divider);padding:40px 28px;background:color-mix(in srgb,var(--surface),var(--fg) 4%);display:flex;flex-direction:column;gap:32px;min-width:0}.flow-node:not(:last-child)::after{content:'→';position:absolute;right:-30px;top:50%;font-size:32px;color:var(--signal);z-index:1}.flow-node strong{font-size:55px;line-height:var(--leading-title);letter-spacing:var(--tracking-title)}.flow-node p{font-size:31px;color:var(--secondary);margin-top:auto}.flow-node.selected{border-color:var(--signal);color:var(--signal)}.flow-node>span{font-family:var(--font-mono);color:var(--secondary)}.depth-step{display:flex;align-items:center;justify-content:space-between;gap:20px;font-size:30px;padding:20px 0}.depth-step:first-of-type{margin-top:32px}.depth-step strong{font-size:38px;font-weight:600}.depth-link{font-size:52px;color:var(--signal)}.muted{color:var(--secondary)}.broken{color:var(--secondary)}.mini-flow{display:flex;align-items:center;gap:20px;margin-top:auto;margin-bottom:auto;font-size:36px}.mini-flow span{padding:20px 30px;background:var(--paper);border:1px solid var(--divider);border-radius:8px}.mini-flow b{font-weight:400;color:var(--signal)}.crossed{margin-top:18px;text-decoration:line-through;text-decoration-color:var(--ember)}.panel .metric{font-size:96px!important;color:var(--paper)!important;line-height:var(--leading-display);font-weight:700;letter-spacing:var(--tracking-display)}.metric span{font-size:38px;margin-left:16px}.decision-list{margin-top:30px}.decision-list li{display:flex;gap:30px;align-items:center;border-bottom:1px solid var(--divider);padding:12px 0;font-size:31px}.decision-list li:last-child{border:0}.decision-list b{font-family:var(--font-mono);width:150px;color:var(--signal)}.case-layout{display:grid;grid-template-columns:.85fr 1.15fr;gap:64px}.case-copy{display:flex;flex-direction:column;justify-content:center}.case-copy h3{font-size:64px;line-height:var(--leading-title);letter-spacing:var(--tracking-title);margin-top:26px}.case-copy>p:not(.panel-kicker){font-size:31px;color:var(--secondary);margin-top:30px}.case-chain{display:flex;gap:14px;flex-wrap:wrap;margin-top:40px;max-width:580px}.case-chain>*{font-size:24px;border:1px solid var(--divider);padding:10px 16px;border-radius:6px}.case-chain strong{background:var(--ink);color:var(--paper);font-weight:500}.case-image{align-self:center;background:var(--paper);border:1px solid var(--divider);border-radius:var(--radius);overflow:hidden}.case-image img{display:block;width:100%;height:auto;max-height:390px;object-fit:contain;background:var(--case-mat)}.case-image figcaption{padding:20px 28px;display:flex;align-items:center;justify-content:space-between;gap:20px;background:var(--ink);color:var(--paper);font-size:24px}.case-image figcaption span{font-family:var(--font-mono);font-size:20px}.case-image figcaption a{text-decoration:none;padding:5px}.role-pair{display:flex;align-items:center;justify-content:space-between;gap:30px;padding:28px 0;border-bottom:1px solid var(--divider)}.role-pair:last-child{border:0}.role-pair strong{font-size:88px;line-height:var(--leading-display);letter-spacing:var(--tracking-display)}.role-pair span{font-size:36px}.finale{display:flex;flex-direction:column;justify-content:center}.final-title{font-size:144px;line-height:var(--leading-display);letter-spacing:var(--tracking-display);margin-top:60px}.final-title em{display:block}.final-actions{display:flex;align-items:center;justify-content:space-between;gap:40px;margin-top:52px}.final-actions p{font-size:36px;color:var(--secondary)}.cta{display:inline-flex;align-items:center;gap:64px;padding:26px 34px;border-radius:8px;background:var(--paper);color:var(--accent);font-size:29px;font-weight:700;text-decoration:none}.cta span{font-size:40px}.related{display:grid;grid-template-columns:1fr 1.4fr 1fr;gap:40px;margin-top:76px;border-top:1px solid var(--divider);padding-top:30px}.related a{font-size:27px;text-decoration:none}.related a span{display:block;font-size:20px;color:var(--secondary);margin-bottom:12px}
/**** Runtime owns only stage scale and the selected scene. ****/
.enhanced{height:100dvh;overflow:hidden}.enhanced .app{height:100%;display:flex;flex-direction:column}.enhanced .stage-viewport{position:relative;flex:1;min-height:0;overflow:hidden;display:flex;align-items:center;justify-content:center;background:var(--stage-back);touch-action:pan-y}.enhanced .stage-wrap{position:relative;flex-shrink:0;width:calc(var(--stage-width)*var(--scale)*1px);height:calc(var(--stage-height)*var(--scale)*1px)}.enhanced .stage{position:absolute;left:0;top:0;transform:scale(var(--scale));transform-origin:top left;width:calc(var(--stage-width)*1px);height:calc(var(--stage-height)*1px);isolation:isolate}.enhanced .slide{position:absolute;inset:0;width:100%;height:100%;min-height:0;visibility:hidden;pointer-events:none;border-bottom:0}.enhanced .slide.active{visibility:visible;pointer-events:auto;z-index:2}.enhanced .slide.departing{visibility:visible;z-index:1;pointer-events:none}.enhanced .slide-index{display:none}.transition-curtain{position:absolute;inset:0;background:var(--accent);z-index:4;pointer-events:none;display:none}.enhanced .transition-curtain.is-moving{display:block}.app-header,.toolbar{flex-shrink:0}.js-only{display:none}.enhanced .js-only{display:flex}
.dialog{border:1px solid var(--dark-line);border-radius:14px;padding:0;background:var(--ink);color:var(--paper);width:min(1100px,calc(100% - 40px));max-height:calc(100dvh - 60px);box-shadow:var(--shadow)}.dialog::backdrop{background:var(--overlay);backdrop-filter:blur(12px)}.dialog-head{display:flex;align-items:center;justify-content:space-between;padding:24px 30px;border-bottom:1px solid var(--dark-line)}.dialog-head h2{font-size:24px;line-height:var(--leading-title);letter-spacing:var(--tracking-title)}.outline-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;padding:30px}.outline-group h3{font-size:17px;line-height:var(--leading-title);letter-spacing:var(--tracking-title);color:var(--ember);margin-bottom:16px}.outline-link{display:flex;align-items:baseline;gap:12px;font-size:14px;text-decoration:none;padding:12px 8px;border-radius:6px;color:var(--dark-muted)}.outline-link span{font:12px var(--font-mono);color:var(--ember)}.outline-link:hover,.outline-link[aria-current=true]{background:var(--dark-line);color:var(--paper)}.outline-footer{display:flex;justify-content:space-between;padding:20px 30px;border-top:1px solid var(--dark-line);font-size:13px;color:var(--dark-muted)}.share-field{padding:30px;display:grid;gap:16px;font-size:15px}.share-field input{width:100%;padding:14px;background:var(--stage-back);color:var(--paper);border:1px solid var(--dark-line);border-radius:6px;font:14px var(--font-mono)}
/* Approved compact adaptation: preserve lecture order and read at a usable size. */
@media(max-width:700px) and (orientation:portrait){
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}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.001ms!important;transition-duration:.001ms!important;scroll-behavior:auto!important}}
@media print{html,body,.enhanced{height:auto!important;overflow:visible!important;background:var(--print-paper)}.app-header,.toolbar,.dialog,.transition-curtain,.skip-link{display:none!important}.enhanced .stage-viewport,.enhanced .stage-wrap,.enhanced .stage{display:block!important;position:static!important;overflow:visible!important;transform:none!important;width:100%!important;height:auto!important}.enhanced .slide{display:block!important;position:relative!important;visibility:visible!important;pointer-events:auto!important;width:1920px!important;height:1080px!important;break-after:page;print-color-adjust:exact} @page{size:1920px 1080px;margin:0}}

html.enhanced body{height:100%;overflow:hidden}p{word-break:keep-all;text-wrap:pretty}h2[data-typography-break] em{display:inline}code,input{overflow-wrap:anywhere}

.content>.panel{min-height:0}.case-image{height:100%;display:flex;flex-direction:column}.case-image img{flex:1;min-height:0;object-fit:contain}.case-image figcaption{flex-shrink:0}
@media(max-width:700px) and (orientation:portrait){.case-image{height:auto}.case-image img{flex:none;height:auto}.content>.panel{min-height:240px}}

@media(hover:hover) and (pointer:fine){.cta:hover{box-shadow:inset 0 0 0 3px var(--ink)}.outline-link:hover{background:var(--dark-line)}}
@media(pointer:coarse){.outline-link{min-height:48px}.icon-button,.nav-button{min-height:44px}}

.notice{position:fixed;bottom:90px;left:50%;transform:translateX(-50%);z-index:20;background:var(--paper);color:var(--ink);border:1px solid var(--line);border-radius:8px;box-shadow:var(--shadow);padding:14px 20px;max-width:calc(100vw - 32px);font-size:14px}.notice:empty{display:none}.motion-option{display:flex;align-items:center;gap:8px;min-height:44px}.motion-option input{width:18px;height:18px;accent-color:var(--ember)}