@font-face{font-family:Instrument;src:url('assets/instrument-serif.ttf') format('truetype');font-weight:400;font-style:normal;font-display:swap}

/* Solar Atlas: neon lime, white, cobalt, and stark ink. */
:root{
  --night:#090d18;--paper:#ffffff;--green:#b2f522;--white:#ffffff;--blue:#2146e0;
  --bg:var(--green);--ink:var(--night);--mut:var(--ink);--line:#090d1840;--acc:var(--ink);--art-fill:var(--green);
  --sans:'Geist','Helvetica Neue',Arial,sans-serif;--mono:'Geist Mono',ui-monospace,monospace;
  --serif:Instrument,Georgia,serif;--section-space:80px;--layout-gap:32px;color-scheme:light;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:28px;background:var(--night)}
body{margin:0;background:var(--bg);color:var(--ink);font:18px/1.65 var(--sans);-webkit-font-smoothing:antialiased}
::selection{background:var(--blue);color:var(--white)}
a{color:inherit;text-underline-offset:5px;text-decoration-thickness:1px}
a:hover{text-decoration-thickness:2px}
:focus-visible{outline:3px solid currentColor;outline-offset:5px}
button{font:inherit}
button,a,summary{-webkit-tap-highlight-color:transparent}
.w{width:100%;max-width:1440px;margin-inline:auto;padding-inline:clamp(22px,5vw,80px)}
.col{max-width:66ch;min-width:0}
.mono{font:500 14px/1.6 var(--mono);letter-spacing:.07em;text-transform:uppercase}
h1,h2{font-family:var(--sans);font-weight:800;letter-spacing:-.055em;line-height:.94;margin:0}
h2{font-size:clamp(44px,6.4vw,88px);margin-bottom:32px;max-width:1040px}
h3{font:700 24px/1.15 var(--sans);letter-spacing:-.035em;margin:0 0 14px}
p{margin:0 0 1.2em}
strong{font-weight:700}
code,pre{font-family:var(--mono)}
code{font-size:.83em;border:1px solid var(--line);padding:.1em .35em;overflow-wrap:anywhere}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:0}
.skip{position:absolute;inset:12px auto auto 20px;transform:translateY(-200%);padding:10px 18px;background:var(--white);color:var(--night);z-index:20}
.skip:focus{transform:none}
.micro{display:block;width:30px;height:30px;object-fit:contain;filter:brightness(0);flex:none}
.micro.wide{width:52px}
.brand-icon{display:block;width:20px;height:20px;flex:none}
.on-dark .micro,.on-dark .brand-icon{filter:brightness(0) invert(1)}

/* Open reading columns share their chapter's ink and continuous artwork. */
.reading-surface{padding:0}
.reading-surface>p:last-child{margin-bottom:0}
.comparison-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:32px}
.comparison-cards article{padding:24px 0 0;border-top:1px solid var(--line);min-width:0}
.comparison-cards .mono{margin-bottom:22px}
.comparison-cards h3{font-size:32px;line-height:1.05;margin-bottom:20px}
.comparison-cards article>p:last-child{font-size:17px;line-height:1.65;margin:0}
.comparison-tradeoff{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.5fr) auto;gap:24px;margin-top:32px;padding:24px 0;border-block:1px solid var(--line)}
.comparison-tradeoff h3{font-size:22px;line-height:1.2;margin:0}
.comparison-tradeoff p{font-size:17px;line-height:1.65;margin:0}
.comparison-tradeoff a{display:flex;align-items:center;gap:12px;min-height:48px;font-size:16px;font-weight:600;align-self:start}

/* Header. */
.site-header{background:var(--green);color:var(--night);border-bottom:1px solid #090d1840}
.header-inner{display:flex;flex-wrap:wrap;align-items:center;gap:12px;min-width:0;padding-block:16px}
.wordmark,.footer-wordmark{font:800 32px/1 var(--sans);letter-spacing:-.06em;text-decoration:none}
.wordmark{margin-right:auto;display:flex;align-items:center;gap:12px;min-height:44px}
.wordmark .micro{width:32px;height:32px}
.header-links{display:flex;order:2;gap:28px;align-items:center;justify-content:space-between;width:100%;min-width:0;overflow-x:auto;scrollbar-width:thin;scrollbar-color:var(--night) var(--green)}
.header-links a{font:500 16px/1.5 var(--sans);text-decoration:none;display:flex;gap:8px;align-items:center;padding-block:8px;min-height:44px;white-space:nowrap;flex:none}
.header-links a span{font:14px var(--mono);opacity:.9}
.header-links a:hover{text-decoration:underline}

/* App entry and email gate share the splash palette. */
.app-entry{display:inline-flex;align-items:center;justify-content:center;gap:20px;min-height:48px;padding:12px 22px;border:1px solid var(--night);border-radius:0;background:var(--night);color:var(--paper);font:600 16px/1.4 var(--sans);cursor:pointer}
.app-entry:hover{background:var(--blue);border-color:var(--blue)}
.app-entry:disabled{opacity:.65;cursor:wait}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:20px}
.footer-app-entry{min-height:44px;padding:10px 0;border:0;border-bottom:1px solid #ffffff30;background:none;color:inherit;text-align:left;font:400 16px/1.5 var(--sans);cursor:pointer}
.footer-app-entry:hover{text-decoration:underline;text-underline-offset:5px}
.app-access{width:min(560px,calc(100% - 32px));max-height:calc(100svh - 32px);margin:auto;padding:clamp(28px,6vw,48px);border:1px solid var(--night);border-radius:0;background:var(--green);color:var(--night);overflow-y:auto}
.app-access::backdrop{background:#090d18b8}
.app-access h2{font-size:clamp(42px,7vw,64px);margin:24px 0;line-height:.98}
.app-access>.mono{padding-right:24px;margin-bottom:0;font-size:14px}
.app-access-close{position:absolute;right:12px;top:12px;width:44px;height:44px;border:0;background:transparent;color:var(--night);font:400 32px/1 var(--sans);cursor:pointer}
.app-access-close:hover{background:#090d1810}
.app-access label{display:block;margin-bottom:8px;font-weight:600;font-size:16px}
.app-access input[type=email]{display:block;width:100%;min-height:52px;padding:12px 14px;border:1px solid var(--night);border-radius:0;background:var(--paper);color:var(--night);font:400 18px/1.4 var(--sans)}
.app-access-privacy{font-size:14px;line-height:1.6;margin:12px 0 24px}
.app-access-submit{width:100%}
.app-access-status{min-height:1.6em;margin:16px 0 0;font-size:16px;line-height:1.6}
@media(max-width:480px){.hero-actions{grid-column:1/-1;width:100%}.hero-actions .app-entry{width:100%}.header-inner>.app-entry{gap:10px;padding-inline:16px}.wordmark{font-size:28px}}

/* Opening: bold centered type; the globe stays anchored to the content width. */
.hero{--opening-chrome-height:137px;display:flex;min-height:calc(100svh - var(--opening-chrome-height));background:var(--green);color:var(--night);padding-block:20px 24px;position:relative;isolation:isolate;overflow:hidden;border-bottom:1px solid var(--night)}
.hero::before{content:'';position:absolute;inset:0;width:min(1536px,100%);margin-inline:auto;background:url('assets/academy-of-knowledge-stipple.webp') center/100% auto no-repeat;mix-blend-mode:multiply;opacity:.12;mask-image:radial-gradient(ellipse 47% 37% at 50% 37%,transparent 66%,#000 100%);pointer-events:none;z-index:0}
.hero>.w{display:flex;flex:1;flex-direction:column;position:relative;z-index:1}
.hero-composition{position:relative;display:flex;flex:1;align-items:center;justify-content:center;padding-block:24px 42px}
.hero-copy{width:100%;max-width:1160px;margin:auto;text-align:center}
.hero h1{font:800 clamp(60px,min(10.5vw,calc((100svh - var(--opening-chrome-height) - var(--opening-content-height,350px))/2.82)),156px)/.94 var(--sans);letter-spacing:-.055em;margin:0;text-align:center}
.hero-line{display:block}.offset-line{padding:0}
.hero-question{display:block;padding:0;color:var(--night);font-style:normal;text-decoration:underline;text-decoration-color:var(--white);text-decoration-thickness:.065em;text-underline-offset:.12em;text-decoration-skip-ink:none}
.hero-specimens{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:40px;max-width:620px;margin:24px auto 0}
.hero-specimens>div{min-width:0}
.hero-specimens svg{display:block;width:100%;height:44px;margin-bottom:8px}
.hero-specimens span{display:block;font:14px/1.4 var(--mono);text-transform:uppercase;letter-spacing:.03em}
.hero-vertical{position:absolute;right:0;top:50%;transform:translateY(-50%);writing-mode:vertical-rl;display:flex;align-items:center;gap:12px;font:800 clamp(24px,2.5vw,36px)/1 var(--sans);letter-spacing:-.06em}
.hero-vertical .micro{width:32px;height:32px;transform:rotate(90deg)}
.hero-atlas{display:grid;grid-template-columns:minmax(0,1fr) 230px;border-top:1px solid var(--line);width:100%;max-width:1160px;align-self:center}
.atlas-field{position:relative;isolation:isolate;overflow:hidden;min-height:168px}
.atlas-field::after{content:'';position:absolute;inset:0;background:url('assets/solar-stipple-atlas.webp') right center/auto 220% no-repeat;opacity:.12;z-index:-2;pointer-events:none}
.atlas-field canvas{position:absolute;inset:0;width:100%;height:100%;z-index:-3;pointer-events:none}
.atlas-copy{padding:24px 0;position:relative;z-index:1}
.atlas-copy p{font:400 16px/1.5 var(--sans);margin:0 0 10px}
.atlas-copy strong{display:block;font:800 clamp(30px,3.3vw,48px)/1 var(--sans);letter-spacing:-.045em}
.atlas-entry{display:flex;flex-direction:column;justify-content:space-between;align-items:flex-end;gap:12px;padding:20px 0 20px 24px;text-decoration:none}
.atlas-entry .atlas-ot{width:78px;height:78px}
.atlas-entry span{display:flex;align-items:center;justify-content:space-between;gap:14px;width:100%;font:700 16px/1.3 var(--sans)}
.atlas-entry span .micro{width:25px;height:25px}
.atlas-entry:hover span{text-decoration:underline;text-underline-offset:4px}
.hero-welcome{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:24px;align-self:center;width:100%;max-width:1160px;padding-top:16px}
.hero-welcome p{margin:0;font:400 16px/1.5 var(--sans)}
.hero-welcome strong{font-weight:700}
.hero-welcome a{display:flex;align-items:center;justify-content:space-between;gap:28px;min-height:44px;border-bottom:1px solid currentColor;font:700 16px/1.3 var(--sans);text-decoration:none}
.hero-welcome a:hover{text-decoration:underline;text-underline-offset:4px}
.hero-welcome .micro{width:28px;height:28px}

/* Bright chapters alternate with paper and ink to give the eye a rest. */
section{padding-block:var(--section-space);position:relative;isolation:isolate;overflow:hidden}
section>.w{position:relative;z-index:1}
#thesis,#day{background:var(--white);--art-fill:var(--white)}
#vibe,#curriculum,#support{background:var(--green)}
#compare,#setup{background:var(--blue);color:var(--paper);--ink:var(--paper);--line:#ffffff44;--acc:var(--white);--art-fill:var(--blue)}
#repo,#faq{background:var(--night);color:var(--paper);--ink:var(--paper);--line:#ffffff33;--acc:var(--white);--art-fill:var(--night)}
.section-kicker{display:flex;align-items:center;gap:12px;border-top:1px solid currentColor;padding-top:18px;margin-bottom:32px}
.section-kicker .micro{width:23px;height:23px}
.section-kicker .section-number{display:flex;align-items:center;justify-content:center;border:1px solid currentColor;font:700 14px/1 var(--mono);letter-spacing:0}
/* The academy fills the selected chapters; other art keeps its own placement. */
.section-art{position:absolute;right:max(-80px,calc((100% - 1440px)/2 - 80px));top:var(--art-top,28px);bottom:var(--art-bottom,auto);width:min(var(--art-width,1000px),var(--art-span,74%));height:min(var(--art-height,640px),100%);pointer-events:none;opacity:var(--art-opacity,.18);background-image:var(--chapter-art);background-position:var(--art-position,center);background-size:var(--art-size,contain);background-repeat:no-repeat;mix-blend-mode:multiply;z-index:0}
.on-dark .section-art{filter:invert(1);mix-blend-mode:screen;opacity:var(--art-opacity,.14)}
#compare .section-art,#setup .section-art{opacity:.08}
#thesis{--chapter-art:url('assets/solar-learning-city.webp');--art-top:auto;--art-bottom:0px;--art-width:1600px;--art-span:112%;--art-height:500px;--art-position:center bottom;--art-opacity:.13}
#compare{--chapter-art:url('assets/footer-world-map.webp');--art-size:1250px auto;--art-position:right center;--art-height:680px}
#vibe{--chapter-art:url('assets/solar-stipple-atlas.webp');--art-size:1100px auto;--art-position:right center;--art-opacity:.1}
#repo{--chapter-art:url('assets/solar-stipple-atlas.webp');--art-size:1250px auto;--art-position:left center;--art-height:580px}
#curriculum{--chapter-art:none;--art-opacity:.13}
#setup{--chapter-art:url('assets/academy-of-knowledge-stipple.webp')}
#day{--chapter-art:none}
#faq{--chapter-art:url('assets/solar-stipple-atlas.webp');--art-size:1100px auto;--art-position:left center;--art-opacity:.08}
#support{--chapter-art:url('assets/solar-learning-city.webp');--art-top:auto;--art-bottom:0px;--art-width:1600px;--art-span:112%;--art-height:520px;--art-position:center bottom;--art-opacity:.18}
#compare .section-art,#repo .section-art,#setup .section-art,#faq .section-art{left:max(-80px,calc((100% - 1440px)/2 - 80px));right:auto}
#compare h2,#repo h2,#setup h2,#faq h2{max-width:900px;margin-left:auto;text-align:right}
#compare .section-lede,#repo .section-lede,#setup .section-lede,#faq .section-lede,
#compare .section-bridge,#repo .section-bridge,#setup .section-bridge,#faq .section-bridge{margin-left:auto}

.journey-marks .trail-mark{width:60px;height:30px;transform:rotate(-8deg);margin-right:12px}
.col>p{font-size:18px;line-height:1.7;max-width:66ch}
.section-lede{margin-bottom:32px}
.section-lede>p:last-child{margin-bottom:0}
.big{font:600 clamp(26px,3.3vw,46px)/1.15 var(--sans)!important;letter-spacing:-.05em;max-width:820px;margin-bottom:32px}
.big strong{font-weight:700;text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:5px}
.three{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--layout-gap);margin-top:44px;border-top:1px solid currentColor}
.three>div{padding-top:26px}
.principle-mark{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px;font:14px var(--mono)}
.three h3{font-size:24px;font-weight:700;letter-spacing:-.035em;max-width:340px;line-height:1.15}
.three p{font-size:17px;line-height:1.7;margin:0}
.cols{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--layout-gap);margin-top:34px}
.cols p{font-size:17px;margin:14px 0 0;opacity:1}
.cols .col>p{font-size:18px;margin:0 0 1.2em}
pre{border:1px solid var(--line);padding:28px;margin:0;font:14px/1.9 var(--mono);white-space:pre-wrap;overflow-wrap:anywhere;background:#ffffff06}

/* One academy panorama, framed into subject-focused illustrations.
   Crop values derive from rectangles in the original 1536 x 1024 artwork:
   ratio = crop width / height; image width = source width / crop width;
   left = -x / crop width; top = -y / crop height. */
.academy-figure{margin:0;min-width:0}
.academy-crop{position:relative;overflow:hidden;isolation:isolate;aspect-ratio:var(--crop-ratio);background:var(--art-fill)}
.academy-crop img{position:absolute;display:block;width:var(--crop-width);max-width:none;height:auto;left:var(--crop-left);top:var(--crop-top);mix-blend-mode:multiply}
.on-dark .academy-crop img{filter:invert(1);mix-blend-mode:screen}
.academy-figure figcaption{margin-top:12px;font-size:14px;line-height:1.6}
.academy-botany{--crop-ratio:570 / 440;--crop-width:269.474%;--crop-left:0%;--crop-top:0%}
.academy-astronomy{--crop-ratio:586 / 328;--crop-width:262.116%;--crop-left:-162.116%;--crop-top:0%}
.academy-biology{--crop-ratio:650 / 530;--crop-width:236.308%;--crop-left:0%;--crop-top:-91.509%}
.academy-calculus{--crop-ratio:4 / 3;--crop-width:357.209%;--crop-left:-174.419%;--crop-top:-217.054%}
.academy-economics{--crop-ratio:536 / 302;--crop-width:286.567%;--crop-left:-186.567%;--crop-top:-145.695%}
.academy-art{--crop-ratio:486 / 274;--crop-width:316.049%;--crop-left:-216.049%;--crop-top:-244.526%}
.academy-intro{align-items:center}
#thesis .academy-intro .col{margin:0;max-width:none}
.academy-intro .big{font-size:clamp(26px,3vw,42px)!important}
.academy-intro .col>p:last-child{margin-bottom:0}
.academy-tutor{align-items:center;margin-top:0}
.academy-tutor .col>p+p{margin-top:22px}
.academy-tutor .academy-figure{align-self:start}
.curriculum-library .academy-crop{aspect-ratio:4 / 3}
.academy-studies{margin-top:44px}
.on-dark .academy-figure figcaption{color:var(--paper)}

/* K–8 pathways lead; selected existing resources stay available below. */
.pathway-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:28px;border-top:1px solid var(--line)}
.pathway-card{min-width:0;padding-top:20px;border-top:0}
.pathway-card>.mono{font-size:14px;margin:0 0 16px}
.pathway-card h3{font-size:25px;line-height:1.15;letter-spacing:-.035em;margin:0 0 12px}
.pathway-card>p:not(.mono){font-size:16px;line-height:1.55;margin:0 0 16px;max-width:38ch}
.pathway-links{display:flex;flex-direction:column;align-items:flex-start;border-top:1px solid var(--line)}
.pathway-links a{display:flex;flex-direction:column;align-items:flex-start;justify-content:center;min-height:44px;padding-block:7px;font-size:15px;line-height:1.4;text-underline-offset:4px}
.pathway-links a>span{font-size:14px;line-height:1.45;text-decoration:none;opacity:.78}
.pathway-note{font-size:15px;line-height:1.6;max-width:86ch;margin:20px 0 0}
.library-picks-title{font-size:20px;line-height:1.3;margin:34px 0 0;padding-top:20px;border-top:1px solid var(--line)}

/* A short first read, with the wider collection one disclosure away. */
.curriculum-starters{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:32px}
.starter-card{display:flex;flex-direction:column;min-width:0}
.starter-card .academy-crop{aspect-ratio:5 / 2}
.starter-card .academy-biology img{top:0;transform:translateY(-47.363%)}
.starter-card .academy-calculus img{top:0;transform:translateY(-68.359%)}
.starter-copy{display:flex;flex:1;flex-direction:column;padding:24px 0 0}
.starter-copy>.mono{margin-bottom:14px}
.starter-copy h3{font-size:28px;line-height:1.15;margin-bottom:14px}
.starter-copy>p:not(.mono){font-size:17px;line-height:1.6;margin-bottom:22px}
.starter-copy a{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;min-height:48px;border-top:1px solid var(--line);padding-top:14px;font-size:16px;font-weight:600}
.library-details{margin-top:32px;padding:0}
.library-details>summary{padding:20px 0;font-size:18px;font-weight:600;gap:20px}
.library-count{margin-left:auto;font:14px/1.5 var(--mono);font-weight:400;white-space:nowrap}
.curriculum-expanded{border-top:1px solid var(--line);padding:24px 0}
.curriculum-expanded>p{font-size:17px;margin:0 0 24px;max-width:65ch}
.curriculum-library{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.curriculum-library>div{min-width:0}
.curriculum-library h3{font-size:22px}
.curriculum-items{list-style:none;padding:0;margin:0;border-bottom:1px solid var(--line)}
.curriculum-items li{border-top:1px solid var(--line)}
.curriculum-items a{display:block;padding-block:16px;min-height:48px;text-decoration:none}
.curriculum-items strong{display:block;font-size:17px;line-height:1.4;margin-bottom:6px}
.curriculum-items a>span{display:block;font-size:16px;line-height:1.55}
.curriculum-items a:hover strong{text-decoration:underline;text-underline-offset:4px}
.curriculum-items a:focus-visible{outline-offset:-3px}
.curriculum-planning{margin-top:28px;padding-top:24px;border-top:1px solid var(--line)}
.curriculum-planning h3{font-size:22px}
.curriculum-workflow-links{display:flex;flex-wrap:wrap;gap:4px 24px}
.curriculum-workflow-links a{display:inline-flex;align-items:center;min-height:48px;font-size:16px;line-height:1.5}
.curriculum-note{max-width:70ch;font-size:17px;line-height:1.6;margin:24px 0 0}

/* Classroom examples: the conversation beside the work it helps produce. */
.demo{margin-top:44px;border-top:1px solid var(--line)}
.demo-heading{padding:32px 0 24px}
.demo-heading>.mono{display:flex;justify-content:space-between;gap:12px;margin-bottom:24px;font-size:14px}
.demo-heading>.mono span{text-transform:none;letter-spacing:0}
.demo-heading h3{font-size:clamp(32px,4vw,52px);letter-spacing:-.05em;line-height:1;margin-bottom:16px}
.demo-heading>p:last-child{max-width:55ch;margin:0;font-size:17px}
.demo-choices{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-block:1px solid var(--line)}
.demo-choices:empty{display:none}
.demo-choices button{display:flex;gap:14px;align-items:center;justify-content:flex-start;padding:18px 16px;border:0;background:transparent;color:inherit;min-height:58px;text-align:left;font:600 16px/1.4 var(--sans);cursor:pointer}
.demo-choices button span{font:14px var(--mono)}
.demo-choices button:hover{text-decoration:underline;text-underline-offset:5px}
.demo-choices button[aria-pressed=true]{box-shadow:inset 0 -3px currentColor}
.on-dark .demo-choices button[aria-pressed=true]{color:var(--green)}
.demo-choices button:focus-visible{outline-offset:-5px}
.demo-example{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:40px;padding-block:28px 36px}
.demo-example[hidden]{display:none}
.demo-conversation{min-width:0}
.demo-channel{margin-bottom:28px;font-size:14px}
.conversation{list-style:none;margin:0;padding:0;display:grid;gap:24px}
.conversation li{min-width:0}
.conversation b{display:flex;flex-wrap:wrap;align-items:center;gap:9px;font:700 14px/1.5 var(--sans);margin-bottom:9px}
.speaker-mark{display:grid;place-items:center;width:24px;height:24px;border:1px solid var(--night);font:700 14px var(--mono)}
.vibe-mark{background:var(--night);color:var(--green)}
.message-note{margin-left:auto;font:14px/1.4 var(--mono);font-weight:400}
.conversation p{font-size:17px;line-height:1.6;padding-left:33px;margin:0;max-width:62ch}
.learner-message p{padding:4px 0 4px 18px;margin-left:33px;border-left:2px solid var(--line)}
.demo-evidence{border-left:1px solid var(--line);padding-left:32px;display:flex;flex-direction:column;min-width:0}
.demo-evidence>.mono{font-size:14px;margin-bottom:26px}
.demo-evidence h4{font:750 clamp(26px,2.8vw,38px)/1.06 var(--sans);letter-spacing:-.04em;margin:0 0 32px}
.fraction-model{margin:0 0 32px}
.fraction-row{display:grid;grid-template-columns:36px minmax(0,1fr) 36px;align-items:center;gap:10px;margin-bottom:14px;font:14px var(--mono)}
.fraction-row>span:last-child{text-align:right}
.fraction-strip{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));height:38px;border:1px solid var(--night)}
.fraction-strip i+i{border-left:1px solid var(--night)}
.fraction-strip .filled{background:var(--night)}
.fraction-strip .filled+.filled{border-left-color:var(--green)}
.fraction-total{padding-top:16px;border-top:1px solid var(--night)}
.demo-takeaway{margin-top:auto;padding-top:22px;border-top:1px solid var(--night)}
.demo-takeaway>.mono{font-size:14px;margin-bottom:12px}
.demo-takeaway>p:last-child{font-size:17px;line-height:1.6;margin:0}
.demo-plan{list-style:none;padding:0;margin:0 0 30px}
.demo-plan li{display:flex;gap:16px;border-top:1px solid #090d1840;padding-block:16px}
.demo-plan li>span{font:14px/1.6 var(--mono);padding-top:3px}
.demo-plan strong{font-size:16px}
.demo-plan p{font-size:17px;line-height:1.5;margin:5px 0 0}
.demo-revision{border-top:1px solid #090d1840;margin-bottom:30px;padding-top:20px}
.demo-revision>.mono{font-size:14px;margin-bottom:8px}
.demo-revision>p:not(.mono){font-size:18px;line-height:1.5;letter-spacing:-.02em}
.demo-revision>p:last-child{margin-bottom:0}
.demo-footnote{margin:0;padding:16px 0;border-top:1px solid var(--line);font-size:14px;line-height:1.6}

/* The same classroom, viewed by the parent, learner, and agent. */
.repo-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.2fr);gap:40px;padding-block:28px 32px}
.repo-map{min-width:0}
.repo-map>.mono{font-size:14px;margin-bottom:24px}
.repo-folders{list-style:none;padding:0;margin:0;border-bottom:1px solid var(--line)}
.repo-folders li{border-top:1px solid var(--line);border-left:2px solid transparent}
.repo-folders a{display:grid;grid-template-columns:22px minmax(0,1fr) 16px;gap:12px;align-items:center;padding:17px 14px;text-decoration:none;min-height:70px}
.repo-folders strong{display:block;font:500 14px/1.5 var(--mono);overflow-wrap:anywhere}
.repo-folders small{display:block;font:16px/1.5 var(--sans);margin-top:4px}
.repo-folders .is-relevant{color:var(--green);border-left-color:var(--green)}
.repo-folders small{color:var(--paper)}
.repo-folders a:hover strong{text-decoration:underline;text-underline-offset:4px}
.repo-folders a:focus-visible{outline-offset:-4px}
.repo-file-arrow{font-size:18px}
.repo-folder-mark{position:relative;display:block;width:20px;height:14px;border:1px solid currentColor;border-radius:0 2px 2px 2px}
.repo-folder-mark::before{content:'';position:absolute;left:-1px;top:-5px;width:10px;height:5px;border:1px solid currentColor;border-bottom:0;border-radius:2px 2px 0 0}
.repo-file-mark{display:block;width:14px;height:19px;border:1px solid currentColor;position:relative;margin-left:3px}
.repo-file-mark::after{content:'';position:absolute;left:3px;right:3px;top:5px;height:1px;background:currentColor;box-shadow:0 4px currentColor,0 8px currentColor}
.repo-map-note{font-size:14px;line-height:1.6;margin:20px 0 0;max-width:38ch}
.repo-view{padding-left:32px;border-left:1px solid var(--line);min-width:0;display:flex;flex-direction:column}
.repo-view[hidden]{display:none}
.repo-view>.mono{font-size:14px;margin-bottom:26px}
.repo-view h4{font:750 clamp(26px,2.8vw,38px)/1.06 var(--sans);letter-spacing:-.04em;margin:0 0 20px}
.repo-view h4,.repo-route li>span{color:var(--green)}
.repo-view>p:not(.mono){font-size:17px;line-height:1.6;max-width:48ch;margin-bottom:26px}
.repo-route{list-style:none;margin:0 0 26px;padding:0}
.repo-route li{display:grid;grid-template-columns:24px minmax(0,1fr);gap:14px;padding-block:18px;border-top:1px solid var(--line)}
.repo-route li>span{font:14px/1.5 var(--mono);padding-top:3px}
.repo-route h5{font:700 17px/1.3 var(--sans);letter-spacing:-.02em;margin:0 0 6px}
.repo-route p{font-size:17px;line-height:1.6;margin:0}
.repo-payoff{border-top:1px solid var(--line);padding-top:20px;margin-top:auto}
.repo-payoff>.mono{font-size:14px;margin-bottom:10px}
.repo-payoff>p:last-child{font-size:17px;line-height:1.5;margin:0;letter-spacing:-.015em}

/* Parent oversight: an ordinary review beside the questions that matter. */
.oversight-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);gap:40px;padding-block:28px 32px;border-top:1px solid var(--line)}
.oversight-review,.oversight-faq{min-width:0}
.oversight-faq{padding-left:32px;border-left:1px solid var(--line);display:flex;flex-direction:column}
.oversight-review>.mono,.oversight-faq>.mono{font-size:14px;margin-bottom:26px}
.oversight-layout h4{font:750 clamp(26px,2.8vw,38px)/1.06 var(--sans);letter-spacing:-.04em;margin:0 0 26px}
.oversight-review h4,.oversight-checks li>span{color:var(--green)}
.oversight-work{padding-left:20px;border-left:2px solid var(--green);margin-bottom:26px}
.oversight-work>.mono{font-size:14px;margin-bottom:14px}
.oversight-work blockquote{margin:0;font:500 20px/1.4 var(--sans);letter-spacing:-.025em}
.oversight-work blockquote p{margin:0}
.oversight-work-caption{font-size:14px;line-height:1.5;margin:14px 0 0}
.oversight-checks{list-style:none;margin:0;padding:0}
.oversight-checks li{display:grid;grid-template-columns:24px minmax(0,1fr);gap:14px;padding-block:18px;border-top:1px solid var(--line)}
.oversight-checks li>span{font:14px/1.5 var(--mono);padding-top:3px}
.oversight-checks h5{font:700 17px/1.3 var(--sans);letter-spacing:-.02em;margin:0 0 6px}
.oversight-checks p{font-size:17px;line-height:1.6;margin:0}
.oversight-review-note{border-top:1px solid var(--line);padding-top:18px;font-size:14px;line-height:1.6;margin:8px 0 0}
.oversight-questions{margin-bottom:26px}
.oversight-questions details{padding-block:18px;border-color:var(--line)}
.oversight-questions summary{font:600 16px/1.4 var(--sans);gap:14px}
.oversight-questions summary>span{display:flex;align-items:baseline;gap:14px}
.faq-number{font:14px/1.5 var(--mono);flex:none}
.oversight-questions summary::after{display:grid;place-items:center;width:28px;height:28px;flex:none;font-size:20px}
.oversight-questions details[open] summary::after{color:var(--green)}
.oversight-questions details p{font-size:17px;line-height:1.65;margin:14px 0 0;padding-left:27px}
.oversight-source{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:44px;margin-top:auto;border-top:1px solid var(--line);padding-top:18px;font-size:16px;font-weight:600}
.oversight-source span{font-size:20px}

/* Setup and daily itinerary. */
.setup-links{display:flex;flex-wrap:wrap;gap:10px 24px;margin-top:16px}
.setup-links a{display:inline-flex;align-items:center;gap:10px;min-height:44px;font-size:16px;line-height:1.5}
.setup-links .brand-icon,.setup-links .micro{width:18px;height:18px}
ol.s{list-style:none;padding:0;margin:30px 0 0;counter-reset:step}
ol.s>li{counter-increment:step;display:grid;grid-template-columns:50px 230px 1fr;gap:28px;border-top:1px solid var(--line);padding-block:26px}
ol.s>li::before{content:counter(step,decimal-leading-zero);font:400 33px/1 var(--serif)}
ol.s h3{font-size:21px;margin:0}
ol.s p{font-size:17px;margin:0}
#day ol.s{max-width:1000px}
.journey-banner{margin-top:42px;display:flex;align-items:center;justify-content:space-between;gap:20px;border-block:1px solid currentColor;padding:19px 0;font:14px/1.6 var(--mono);letter-spacing:.05em;text-transform:uppercase}
.journey-marks{display:flex;align-items:center;gap:22px}
.journey-marks .micro{width:24px;height:24px}
details{padding-block:22px;border-top:1px solid var(--line)}
details:last-of-type{border-bottom:1px solid var(--line)}
summary{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:44px;font:500 18px/1.5 var(--sans);cursor:pointer;list-style:none}
summary::-webkit-details-marker{display:none}
summary::after{content:'+';font:20px var(--mono)}
details[open] summary::after{content:'−'}
details p{font-size:16px;line-height:1.75;margin:16px 0 0}
.cta{display:flex;gap:14px;flex-wrap:wrap}
.pill{display:inline-flex;align-items:center;gap:20px;min-height:48px;padding-block:12px;border-bottom:1px solid currentColor;text-decoration:none;font:600 16px var(--sans)}
.pill:hover{text-decoration:underline}
.pill .micro{width:18px;height:18px}
.addr{display:flex;align-items:center;flex-wrap:wrap;gap:10px;margin-top:14px}
.addr code{max-width:100%;padding:10px 0;border:0}
.addr button{padding:11px 0;border:0;border-bottom:1px solid currentColor;background:transparent;color:inherit;cursor:pointer;font:16px var(--sans);min-height:48px}
.addr button:hover{text-decoration:underline}
.addr button[hidden]{display:none}
.support-heading{display:flex;align-items:center;gap:12px}
.support-heading .micro{width:23px;height:23px}

/* Reading order comes from numbered rows and rules, without filled cards. */
.setup-steps,.day-itinerary{display:grid}
ol.s.setup-steps>li,ol.s.day-itinerary>li{padding:24px 0}
ol.s.setup-steps>li{grid-template-columns:40px minmax(0,.8fr) minmax(0,1.8fr);gap:24px}
ol.s.day-itinerary>li{grid-template-columns:40px 220px minmax(0,1fr);gap:24px}
ol.s.setup-steps p,ol.s.day-itinerary p{font-size:17px;line-height:1.65}
#day ol.s{max-width:none}
.setup-links a{font-weight:600}
.setup-steps .setup-links{margin-top:14px}
.setup-steps .setup-links a{justify-content:space-between;gap:16px;min-height:48px}
.setup-guides{padding:0;margin-top:24px}
.setup-guides>summary{padding:20px 0;font-size:18px;font-weight:600}
.setup-guide-groups{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px;border-top:1px solid var(--line);padding:24px 0}
.setup-guide-groups h3{font-size:22px}
.setup-guide-groups p{font-size:17px;line-height:1.6}
.setup-guide-groups .setup-links{display:flex;flex-direction:column;align-items:flex-start;gap:4px;margin-top:0}
.setup-guide-groups .setup-links a{font-size:16px;min-height:48px}
.donation-options>div{padding-top:24px;border-top:1px solid var(--line)}
.addr code{width:100%;font-size:16px;line-height:1.7;overflow-wrap:anywhere}
.addr button{font-size:16px}
.pill{min-height:48px}

/* One chapter template and a short handoff to the next part of the story. */
.section-bridge{margin-top:44px;padding-top:24px;border-top:1px solid var(--line)}
.section-bridge p{margin:0 0 8px}
.section-bridge a{display:inline-flex;align-items:center;gap:20px;min-height:44px;font-size:16px;font-weight:600}
.section-bridge .micro{width:18px;height:18px}
.day-time{display:block;margin-top:10px;font-size:14px;line-height:1.6;letter-spacing:0;text-transform:none}
.build-invitation{padding-block:24px;margin-bottom:24px;border-block:1px solid var(--line)}
.build-action{display:flex;align-items:center;justify-content:space-between;gap:32px;font:700 28px/1.15 var(--sans);letter-spacing:-.035em}
.build-action p{margin:0}
.build-action a{display:flex;align-items:center;gap:20px;min-height:44px;text-underline-offset:6px}
.build-arrows{display:flex;align-items:center;gap:0}
.build-arrows .micro{width:28px;height:28px;margin-right:-7px}
.support-note{margin-bottom:24px}
.donation-options{margin-top:32px}

/* Closing navigation. */
.site-footer{position:relative;min-height:clamp(580px,52vw,740px);background:var(--night);color:var(--paper);padding-block:58px 48px;border-top:1px solid #ffffff30;isolation:isolate;overflow:hidden}
.footer-inner{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,.8fr) minmax(0,1fr);gap:40px 64px}
.footer-inner>*{min-width:0}
.footer-wordmark{display:inline-flex;align-items:center;gap:12px;font-size:36px;min-height:44px;max-width:100%}
.footer-wordmark .micro{width:36px;height:36px}
.footer-brand{display:flex;flex-direction:column;align-items:flex-start;gap:22px}
.footer-brand p{max-width:32ch;margin:0;font-size:17px;line-height:1.7}
.footer-socials{display:flex;gap:12px;color:var(--white)}
.footer-socials a{display:flex;align-items:center;justify-content:center;width:44px;height:44px}
.footer-socials .brand-icon{width:26px;height:26px;filter:brightness(0) invert(1)}
.footer-socials a:hover{opacity:.7}
.footer-links{display:flex;flex-direction:column}
.footer-links h3{margin-bottom:14px;font-size:14px;letter-spacing:.07em}
.footer-links a{display:flex;align-items:center;gap:14px;min-height:44px;padding-block:10px;border-bottom:1px solid #ffffff30;text-decoration:none;font-size:16px;line-height:1.5;overflow-wrap:anywhere}
.footer-links a:hover{text-decoration:underline}
.footer-links a span{font:14px var(--mono)}
.footer-links .micro{width:16px;height:16px;margin-left:auto}
.footer-legal{grid-column:1/-1;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:8px 32px;padding-top:24px;border-top:1px solid #ffffff30;text-transform:none;font-size:14px;letter-spacing:0;line-height:1.7}
.footer-legal p{margin:0;grid-column:1}
.footer-legal .back-to-top{grid-column:2;grid-row:1;align-self:start;display:inline-flex;align-items:center;gap:12px;min-height:44px}
.footer-legal .micro{width:18px;height:18px}
.footer-panorama{position:absolute;right:max(-80px,calc((100% - 1440px)/2 - 80px));bottom:-100px;width:min(1200px,100%);pointer-events:none;z-index:0}
.footer-panorama img{display:block;width:100%;height:auto;filter:invert(1);opacity:.08}

@media(max-width:1100px){
  .header-links{gap:22px}.hero h1{font-size:clamp(58px,min(10.5vw,calc((100svh - var(--opening-chrome-height) - var(--opening-content-height,350px))/2.82)),116px)}
  .hero-vertical{font-size:24px}

}
@media(max-width:800px){
  .header-inner{gap:10px}.wordmark{font-size:28px}.header-links{justify-content:flex-start;gap:22px}
  .hero{--opening-chrome-height:134px;padding-top:24px}
  .hero-composition{padding-block:24px 40px}.hero h1{font-size:clamp(52px,min(10.5vw,calc((100svh - var(--opening-chrome-height) - var(--opening-content-height,350px))/2.82)),90px)}
  .hero-vertical{display:none}
  .hero-atlas{grid-template-columns:minmax(0,1fr) 180px}.atlas-copy{padding:22px 0}.atlas-entry{padding:20px 0 20px 24px}
  :root{--section-space:64px;--layout-gap:24px}.section-kicker{margin-bottom:28px}.section-art{width:80%;height:520px}
  #thesis .section-art,#support .section-art{width:112%;height:360px}
  .demo-example{grid-template-columns:1fr;gap:28px}.demo-evidence{padding:24px 0 0;border-left:0;border-top:1px solid var(--line)}
  .repo-layout{grid-template-columns:1fr;gap:32px}.repo-map{order:2;padding-top:24px;border-top:1px solid var(--line)}.repo-view{order:1;padding-left:0;border-left:0}
  .oversight-layout{grid-template-columns:1fr;gap:32px}.oversight-faq{padding:24px 0 0;border-left:0;border-top:1px solid var(--line)}
  .three h3{font-size:24px}.three p{font-size:17px}
  ol.s>li{grid-template-columns:34px 180px 1fr;gap:18px}ol.s h3{font-size:18px}ol.s p{font-size:17px}
  .footer-inner{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}.footer-brand{grid-column:1/-1}.footer-wordmark{font-size:36px}
  .academy-intro,.academy-tutor{grid-template-columns:1fr}
  .academy-intro .academy-figure{max-width:600px}
  .academy-tutor .academy-figure{max-width:650px}
  .curriculum-library>div:last-child .academy-figure{max-width:440px}
  .build-action{gap:24px}

}
@media(max-width:560px){
  .hero::before{background-position:center 28%;opacity:.08;mask-image:radial-gradient(ellipse 64% 48% at 50% 34%,transparent 62%,#000 100%)}
  .hero-specimens{gap:14px;margin-top:24px}.hero-specimens svg{height:32px}.hero-specimens span{font-size:14px;letter-spacing:0}
  .hero-composition{padding-block:18px 38px}.hero h1{font-size:clamp(38px,min(12.4vw,calc((100svh - var(--opening-chrome-height) - var(--opening-content-height,380px))/2.82)),70px);letter-spacing:-.055em}
  .hero-atlas{grid-template-columns:minmax(0,1fr) 105px}.atlas-field{min-height:150px}
  .atlas-copy{padding:22px 0}.atlas-copy p{font-size:16px;max-width:20ch;margin-bottom:12px}
  .atlas-copy strong{font-size:clamp(21px,6.2vw,31px);line-height:1.05}
  .atlas-entry{padding:18px 0 18px 12px;align-items:center}.atlas-entry .atlas-ot{width:56px;height:56px}
  .atlas-entry span{flex-direction:column;gap:8px;font-size:16px;text-align:center}.atlas-entry span .micro{width:24px;height:24px}
  .hero-welcome{grid-template-columns:minmax(0,1fr) auto;padding-top:16px;gap:10px;align-items:start}.hero-welcome p{grid-column:1/-1;font-size:16px;line-height:1.5}.hero-welcome a{justify-self:start;font-size:16px;min-height:44px;gap:22px}
  .header-links{gap:22px}
  .header-links a{font-size:16px;gap:6px;min-height:44px}.wordmark{font-size:28px}
  :root{--section-space:52px;--layout-gap:24px}h2{font-size:clamp(40px,11vw,60px);margin-bottom:24px}.section-kicker{font-size:14px;margin-bottom:30px}.section-kicker .micro{width:20px;height:20px}
  .build-action{display:block;font-size:27px}.build-action p{margin-bottom:24px}.build-action a{gap:14px}.build-arrows .micro{width:24px;height:24px;margin-right:-6px}
  .section-art{width:100%;height:340px;top:var(--art-mobile-top,44px);bottom:var(--art-mobile-bottom,auto);right:-18%;background-size:var(--art-mobile-size,contain);background-position:var(--art-mobile-position,center);opacity:.1}.on-dark .section-art{opacity:.08}
  #vibe{--art-mobile-size:620px auto;--art-mobile-position:right top}
  #curriculum{--art-mobile-size:620px auto;--art-mobile-position:center top}
  #setup{--art-mobile-size:620px auto;--art-mobile-position:left bottom}
  #faq{--art-mobile-size:620px auto;--art-mobile-position:45% bottom}
  #day{--art-mobile-top:auto;--art-mobile-bottom:100px;--art-mobile-size:620px auto;--art-mobile-position:right bottom}
  #thesis,#support{--art-mobile-top:auto;--art-mobile-bottom:0px}
  #thesis .section-art,#support .section-art{width:140%;height:260px;right:-20%}
  #compare .section-art,#setup .section-art{opacity:.08}
  #compare .section-art,#repo .section-art,#setup .section-art,#faq .section-art{left:-18%;right:auto}
  #compare h2,#repo h2,#setup h2,#faq h2{text-align:left}
  .big{font-size:25px!important}.col>p{font-size:18px}.three{grid-template-columns:1fr;gap:0;margin-top:30px}.three>div{padding-block:24px}.three>div+div{border-top:1px solid var(--line)}
  .principle-mark{margin-bottom:16px}.three h3{font-size:24px;max-width:100%}.three p{font-size:17px}
  .cols{grid-template-columns:1fr}.cols>div,.three>div,ol.s>li>*{min-width:0}.cols p{font-size:17px}pre{padding:22px;font-size:14px}
  .academy-studies{gap:32px}
  .demo-heading{padding:24px 0}.demo-heading>.mono{display:block;margin-bottom:20px}.demo-heading>.mono span{display:block;margin-top:6px}
  .demo-choices{grid-template-columns:1fr}.demo-choices button{padding:14px 0;min-height:48px}.demo-choices button+button{border-top:1px solid var(--line)}
  .conversation p{font-size:17px}.message-note{font-size:14px}
  .demo-evidence h4{font-size:32px}
  .repo-view h4{font-size:32px}
  .repo-folders a{padding:16px 10px;gap:10px;grid-template-columns:20px minmax(0,1fr) 14px}
  .repo-folders strong{font-size:14px}.repo-folders small{font-size:16px}
  .oversight-layout h4{font-size:32px}
  .oversight-work blockquote{font-size:19px}
  .oversight-questions summary{font-size:16px}.oversight-questions summary>span{gap:10px}
  .oversight-questions details p{padding-left:0}
  ol.s>li{grid-template-columns:30px 1fr;gap:12px 14px;padding-block:22px}ol.s>li>p,ol.s>li>div{grid-column:2}ol.s h3{font-size:20px}ol.s p{font-size:17px}
  .journey-banner{flex-direction:column;align-items:flex-start;font-size:14px;gap:16px}.journey-marks{gap:14px;flex-wrap:wrap}.journey-marks .micro{width:18px;height:18px}.journey-marks .trail-mark{width:30px;margin-right:0}
  summary{font-size:17px}details p{font-size:16px}.addr code{width:100%;font-size:16px;word-break:break-all;padding:10px 0}.addr button{font-size:16px}.site-footer{min-height:620px;padding-top:40px}.footer-inner{grid-template-columns:1fr;gap:36px}.footer-wordmark{font-size:32px}
  .cta{display:grid;grid-template-columns:1fr 1fr;gap:20px}.pill{justify-content:space-between;gap:8px;padding:12px 0;font-size:16px}
  .build-action a{min-height:44px}
  .footer-legal{grid-template-columns:1fr;gap:12px}
  .footer-legal .back-to-top{grid-column:1;grid-row:auto}
  .section-bridge{margin-top:32px}
  .section-bridge a{font-size:16px}
  .day-time{font-size:14px}
  .footer-panorama{width:150%;max-width:760px;right:-25%;bottom:-70px}

}
@media(max-width:560px) and (max-height:740px){
  .hero{padding-block:10px 16px}.hero-composition{padding-block:10px 14px}
  .hero h1{font-size:clamp(34px,12vw,60px)}
  .atlas-field{min-height:144px}.hero-welcome{padding-top:12px;gap:6px}
}
@media(max-width:1000px){
  .comparison-tradeoff{grid-template-columns:1fr}.comparison-tradeoff a{justify-self:start}
}
@media(max-width:800px){
  .comparison-cards,.curriculum-starters,.curriculum-library,.setup-guide-groups{grid-template-columns:1fr}
  .pathway-grid{grid-template-columns:1fr;gap:0}
  .pathway-card{padding:22px 0;border-bottom:1px solid var(--line)}
  .pathway-card>.mono{margin-bottom:12px}
  .pathway-card>p:not(.mono){max-width:55ch}
  .pathway-links{display:flex;flex-direction:row;flex-wrap:wrap;gap:0 22px}
  ol.s.setup-steps>li,ol.s.day-itinerary>li{grid-template-columns:32px minmax(0,1fr);gap:12px 18px}
  ol.s.setup-steps>li>div,ol.s.day-itinerary>li>p{grid-column:2}
}
@media(max-width:560px){
  .comparison-cards article{padding:24px 0 0}.comparison-tradeoff{padding:24px 0}
  .comparison-cards h3{font-size:28px}
  .starter-copy{padding:22px 0 0}.starter-copy h3{font-size:28px}
  .library-details>summary{flex-wrap:wrap;padding:18px 0;gap:12px}
  .library-details>summary>span:first-child{flex:1 1 210px}
  .library-count{margin-left:0;order:2;width:100%}
  .curriculum-expanded,.setup-guide-groups{padding:20px 0}
  ol.s.setup-steps>li,ol.s.day-itinerary>li{padding:22px 0;gap:12px}
  .setup-guides>summary{padding:18px 0}
  .conversation b .message-note{margin-left:0}
  .footer-links a{font-size:16px}
}

/* Keep chapter art within the reading width and at a stable scale. */
:is(#vibe,#curriculum,#day)>.section-art{display:none}
#setup>.section-art,#faq>.section-art{top:100px;bottom:auto;width:min(850px,68%);height:min(540px,72%);background-size:auto 100%;background-position:left center}
#setup>.section-art{--chapter-art:url('assets/academy-of-knowledge-stipple.webp');--art-opacity:.08}
#faq>.section-art{left:max(-80px,calc((100% - 1440px)/2 - 80px));right:auto}

@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important;animation:none!important}}
@media(max-width:800px){
  #setup>.section-art,#faq>.section-art{top:86px;width:78%;height:min(340px,40%);background-size:auto 100%;opacity:.06}
}
@media print{.site-header,.demo-choices,.section-art,.hero::before,.hero::after,#curriculum::after,.footer-panorama{display:none}body,section,.hero,.site-footer{background:white!important;color:black!important;--ink:black;--line:#aaa;--art-fill:white}.hero-composition{display:block}section{padding-block:28px;break-inside:avoid}.hero h1{font-size:64px}.hero-question{color:black}h2{font-size:42px}.micro,.brand-icon{filter:brightness(0)!important}.academy-crop img{filter:none!important;mix-blend-mode:multiply!important}}