@font-face{font-family:Instrument;src:url(../serif.ttf)}@font-face{font-family:Instrument;src:url(../serif-italic.ttf);font-style:italic}:root{--paper: #f8f5ed;--ink: #17362b;--muted: #667368;--pink: #d7a5b5;--green: #98af8b;--line: #d8ded0;font-family:Arial,Helvetica,sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:25px}body{margin:0}button,a,input{-webkit-tap-highlight-color:transparent}a{color:inherit;text-decoration:none}button{font:inherit;color:inherit;cursor:pointer}a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid #b9668f;outline-offset:5px}button:disabled{opacity:.35;cursor:default}.skip{position:fixed;left:16px;top:-80px;z-index:99;background:var(--ink);color:#fff;padding:14px}.skip:focus{top:10px}header{height:105px;padding:0 5%;display:flex;align-items:center;justify-content:space-between;gap:30px;position:relative;z-index:3}.wordmark{font-size:43px;letter-spacing:-3.5px;font-weight:750;display:inline-flex;align-items:baseline}.brand-dot{width:9px;height:9px;background:var(--pink);border-radius:50%;margin-left:5px}nav{display:flex;gap:40px;font-size:15px}.button{display:inline-flex;align-items:center;justify-content:center;gap:30px;background:var(--ink);color:#fff;padding:16px 25px;border-radius:40px;border:1px solid var(--ink);font-size:15px;line-height:1.2;transition:background .2s,transform .2s}.button:hover{background:#345044;transform:translateY(-2px)}.button span{font-size:23px;line-height:16px}.hero{position:relative;padding-top:25px;padding-bottom:70px;overflow:hidden;background:radial-gradient(ellipse at 65% 43%,#e7e6d980,transparent 60%)}.hero-copy{position:relative;z-index:2;margin-left:5%;pointer-events:none}.hero-copy>*{pointer-events:auto}h1,h2,h3,p{margin-top:0}h1{font:clamp(64px,7.3vw,116px) / .92 Instrument,Georgia,serif;letter-spacing:-3px;margin-bottom:22px;font-weight:400}h1 em,h2 em{font-weight:400}.hero-copy p{font-size:18px;line-height:1.55;color:#526155;margin-bottom:25px}.hero-note{position:absolute;top:110px;right:8%;font:italic 21px/1.45 Instrument,serif;color:#6f7c68}.small-line{display:block;width:35px;height:1px;background:#abb7a3;margin-bottom:18px}.book-stage{height:680px;position:relative;margin-top:-170px;scroll-margin-top:10px}#scene{width:100%;height:100%;display:block;touch-action:pan-y}.bloop-guide{position:absolute;left:70%;top:14%;width:135px;text-align:center;pointer-events:none}.bloop-guide img{width:100%;height:auto;filter:drop-shadow(0 9px 5px #29472a15)}.hint{pointer-events:auto;border:1px solid #cfdbbf;background:#fafaf2;font-size:12px;padding:9px 13px;border-radius:30px;box-shadow:0 3px 8px #2643300c}.book-loading{position:absolute;inset:0;display:grid;place-items:center;font:italic 26px Instrument;transition:opacity .5s;pointer-events:none}.book-loading.done{opacity:0}.lesson-dock{position:relative;z-index:2;display:flex;align-items:center;justify-content:center;gap:28px;max-width:680px;margin:-30px auto 0;padding:16px 25px;border:1px solid #fff;border-radius:40px;background:#fffff7d9;box-shadow:0 7px 24px #273c2410;backdrop-filter:blur(10px)}.equation{display:flex;gap:12px;align-items:center;font-size:27px;min-width:155px;font-family:Instrument,serif}.equation strong{font:inherit}.operator{color:#8b9484}.swap{display:flex;gap:11px;align-items:center;border:0;background:transparent;padding:6px 0;font-size:14px}.page-controls{display:flex;align-items:center;gap:12px;border-left:1px solid #cad0be;padding-left:20px}.page-controls span{font-size:12px;color:#627360;white-space:nowrap}.page-controls button{width:36px;height:36px;border:0;border-radius:50%;background:#e7e9df;font-size:20px}#next{background:var(--ink);color:#fff}.demo-note{text-align:center;margin:15px 0 22px;font-size:12px;color:#85917f}.lesson-controls{display:flex;justify-content:center;gap:24px;align-items:center;flex-wrap:wrap;margin:0 auto;max-width:760px;padding:8px 25px}.lesson-controls label{width:180px;font-size:12px}.lesson-controls label>span{display:flex;gap:7px;align-items:center;margin-bottom:10px}.lesson-controls output{margin-left:auto;font-size:14px}.dot{width:8px;height:8px;border-radius:50%;display:inline-block}.pink{background:var(--pink)}.green{background:var(--green)}input[type=range]{accent-color:var(--ink);width:100%;height:22px}.quiet{border:0;border-bottom:1px solid #bbc5b0;background:none;padding:8px 0;font-size:12px}.lesson-feedback{text-align:center;font:italic 23px/1.4 Instrument;margin:23px auto;max-width:680px;padding:0 20px;min-height:34px}.text-lesson{max-width:620px;margin:0 auto;padding:0 25px;font-size:14px;line-height:1.7;color:#697363}.text-lesson summary{cursor:pointer;text-align:center;font-size:12px}.text-lesson h2{font-size:28px;margin-top:22px}.no-webgl{position:absolute;inset:0;padding:30px}.no-webgl[hidden]{display:none}.how{padding:100px 8%;background:#eff1e7;border-top:1px solid #e1e5d7}.section-heading{display:grid;grid-template-columns:1fr 1fr;column-gap:100px}.eyebrow{font-size:10px;letter-spacing:2.2px;text-transform:uppercase;color:#74816c;margin-bottom:24px}.section-heading .eyebrow{grid-column:1/-1}h2{font:64px/.98 Instrument,Georgia,serif;letter-spacing:-1.5px;font-weight:400;margin-bottom:25px}.section-heading>p:last-child{max-width:390px;line-height:1.75;color:#687561;align-self:center;margin:0}.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:65px;margin-top:65px}.step-number{font:italic 20px Instrument;color:#8c9d7d;display:block;margin-bottom:18px}h3{font:30px/1.1 Instrument;margin-bottom:14px}.steps p{color:#74806b;font-size:14px;line-height:1.7;max-width:300px}.thinking-section{padding:120px 8%;display:grid;grid-template-columns:1fr 1.2fr;gap:90px;align-items:center}.thinking-copy>p:not(.eyebrow){max-width:350px;color:#6a7863;font-size:15px;line-height:1.8}.text-link{display:inline-flex;align-items:center;gap:22px;border-bottom:1px solid #8a997f;padding:10px 0;font-size:13px}.anatomy-card{border:1px solid #c9d3be;border-radius:12px;padding:22px;background:#f4f5ed}.figure-top,.figure-bottom{display:flex;justify-content:space-between;font-size:11px;color:#788470}.figure-top span:first-child{font-size:9px;letter-spacing:1px}.figure-bottom strong{font-weight:400;color:var(--ink)}#anatomy svg,#fallback-art svg{width:100%;height:auto;display:block}.story{padding:95px 16%;display:grid;grid-template-columns:240px 1fr;gap:100px;align-items:center;border-top:1px solid var(--line)}.story img{width:220px;height:auto}.story p:not(.eyebrow){font-size:15px;color:#697562;line-height:1.8;max-width:450px}.closing{position:relative;overflow:hidden;text-align:center;padding:95px 20px 145px;background:#e6ebdb}.closing>p{font:italic 25px Instrument;color:#6d7e5e}.closing h2{font-size:86px;position:relative;z-index:1}.closing .button{position:relative;z-index:1}.closing-hills{position:absolute;inset:auto -10% -180px;height:260px;border-radius:50%;background:#cbd6b8;box-shadow:340px -28px #d2dcbc,-370px -9px #dbe2cc}footer{padding:40px 6% 30px;display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap}footer .wordmark{font-size:32px}footer>div{display:flex;gap:26px;font-size:12px}footer>span{font-size:11px;color:#8a9480}.source-note{flex-basis:100%;font-size:10px;line-height:1.7;color:#8a9480;margin:0;max-width:760px}.source-note a{text-decoration:underline}body.still *{animation:none!important;transition:none!important}@media(max-width:800px){header{height:83px;padding:0 6%;gap:12px}.wordmark{font-size:34px}nav{display:none}.nav-cta{font-size:12px;padding:12px 16px;gap:14px}.hero{padding-top:35px}.hero-copy{margin:0 7%}h1{font-size:70px;letter-spacing:-1.5px}.hero-copy p{font-size:16px}.hero-note{display:none}.book-stage{height:480px;margin-top:0}.bloop-guide{width:90px;top:9%;left:auto;right:12%}.hint{font-size:10px;padding:7px}.lesson-dock{max-width:94%;gap:13px;padding:12px 15px;margin-top:-30px}.equation{min-width:102px;font-size:23px;gap:7px}.swap{font-size:11px;gap:6px}.swap svg{width:20px}.page-controls{padding-left:10px;gap:6px}.page-controls span{font-size:10px}.page-controls button{width:28px;height:28px;font-size:16px}.lesson-controls{gap:14px;padding:0 7%}.lesson-controls label{width:42%}.lesson-feedback{font-size:22px}.how{padding:65px 7%}.section-heading{display:block}.section-heading>p:last-child{font-size:14px}.steps{grid-template-columns:1fr;gap:28px;margin-top:40px}.steps article{display:grid;grid-template-columns:35px 1fr;column-gap:15px}.step-number{grid-row:1/3;margin-top:3px}.steps h3{font-size:28px}.steps p{max-width:none}.thinking-section{grid-template-columns:1fr;padding:70px 7%;gap:35px}.thinking-copy>p:not(.eyebrow){max-width:none}.story{padding:60px 7%;grid-template-columns:1fr;gap:25px}.story img{width:140px;margin:auto}.story h2,h2{font-size:53px}.closing{padding:75px 20px 115px}.closing h2{font-size:72px}footer{padding:30px 7%;gap:22px}footer>div{gap:18px}footer>span{width:100%}.source-note{font-size:10px}.wide{display:none}}@media(max-width:380px){h1{font-size:61px}.swap{font-size:10px}.lesson-dock{gap:7px}.page-controls{gap:4px}.page-controls span{display:none}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}.view-controls{position:absolute;left:50%;bottom:35px;transform:translate(-50%);display:flex;gap:5px;z-index:2}.view-controls button{border:1px solid #d2d9c9;border-radius:22px;background:#fafaf3e8;padding:8px 12px;font-size:11px;min-height:34px}.view-controls [aria-pressed=true]{background:#263f32;color:#fff}.view-controls button:hover{background:#e5eadb}@media(max-width:800px){.view-controls{bottom:30px;white-space:nowrap}.view-controls button{font-size:10px;padding:7px 10px}.book-stage{height:470px}.bloop-guide{top:3%;right:10%;width:85px}}.pink-units{--anatomy-paper: #d4a2b2;--anatomy-top: #dfb1c1;--anatomy-shade-0: #ad7f91;--anatomy-shade-1: #be91a2;--anatomy-shade-2: #cf9db1;--anatomy-shade-3: #deb1c2}.green-units{--anatomy-paper: #93a983;--anatomy-top: #adbd9f;--anatomy-shade-0: #77896b;--anatomy-shade-1: #879c77;--anatomy-shade-2: #93a983;--anatomy-shade-3: #aabb98}[hidden]{display:none!important}.static-note{text-align:center;color:#728367;font-size:13px}.no-webgl #fallback-art{max-width:700px;margin:20px auto}.view-controls button{min-height:44px}input[type=range]{min-height:32px}#scene{mask-image:linear-gradient(to bottom,transparent 0%,transparent 10%,black 32%,black 97%,transparent 100%);-webkit-mask-image:linear-gradient(to bottom,transparent 0%,transparent 10%,black 32%,black 97%,transparent 100%)}body.exploring-book{overflow:hidden}.exploring-book header,.exploring-book .hero-copy,.exploring-book .hero-note,.exploring-book .hero>:not(.book-stage):not(.lesson-dock),.exploring-book main>:not(.hero),.exploring-book footer{display:none}.exploring-book .hero{padding:0;height:100dvh}.exploring-book .book-stage{position:fixed;inset:0;height:100dvh;margin:0;z-index:20}.exploring-book #scene{mask-image:none;-webkit-mask-image:none}.exploring-book .lesson-dock{position:fixed;z-index:22;bottom:26px;left:50%;transform:translate(-50%);width:max-content;margin:0}.exploring-book .view-controls{top:22px;bottom:auto}.exploring-book .bloop-guide{display:none}@media(max-width:700px){.exploring-book .lesson-dock{width:95%;bottom:15px}}.iso{--anatomy-page:#0b0b0b;--anatomy-card:#131313;--anatomy-text:#a3a3a3;--anatomy-strong:#e6e6e6;--anatomy-muted:#6e6e6e;--anatomy-paper:#131313;--anatomy-face:#1b1b1b;--anatomy-top:#1c1c1c;--anatomy-shade-0:#0f0f0f;--anatomy-shade-1:#121212;--anatomy-shade-2:#151515;--anatomy-shade-3:#181818;--anatomy-lit-top:#262626;--anatomy-lit-shade:#1d1d1d;--anatomy-hi:#d4d4d4;--anatomy-mid:#6a6a6a;--anatomy-lo:#3e3e3e;--anatomy-faint:#2a2a2a;--anatomy-lit:#ffffff;--anatomy-halo:#050505;--anatomy-halo-opacity:.9;--anatomy-dot:#e6e6e6;--anatomy-red:#ff6b6b;--anatomy-green:#6be0a0;--anatomy-blue:#6b9bff;--anatomy-weight:.6px;--anatomy-ease:cubic-bezier(.32,.72,0,1);--anatomy-mono:ui-monospace,"SF Mono",Menlo,Consolas,monospace;--anatomy-lift:inset 0 1px 0 0 #ffffff0a,inset 0 0 0 1px #ffffff06,0 0 0 1px #00000026,0 1px 1px -.5px #00000014,0 3px 3px -1.5px #00000014,0 6px 6px -3px #00000014,0 12px 12px -6px #00000014}.iso[data-theme=light]{--anatomy-page:#f2f2ef;--anatomy-card:#fbfbfa;--anatomy-text:#57575a;--anatomy-strong:#18181a;--anatomy-muted:#8c8c90;--anatomy-paper:#fbfbfa;--anatomy-face:#ffffff;--anatomy-top:#ffffff;--anatomy-shade-0:#dcdcd9;--anatomy-shade-1:#e5e5e2;--anatomy-shade-2:#ededea;--anatomy-shade-3:#f4f4f1;--anatomy-lit-top:#ffffff;--anatomy-lit-shade:#eeeeeb;--anatomy-hi:#26262a;--anatomy-mid:#8a8a8f;--anatomy-lo:#b4b4b8;--anatomy-faint:#d4d4d6;--anatomy-lit:#000000;--anatomy-halo:#8a8a80;--anatomy-halo-opacity:.32;--anatomy-dot:#3a3a3e;--anatomy-red:#e5484d;--anatomy-green:#30a46c;--anatomy-blue:#3e63dd;--anatomy-lift:inset 0 1px 0 0 #ffffff,0 0 0 1px #0000000f,0 1px 1px -.5px #0000000a,0 3px 3px -1.5px #0000000a,0 6px 6px -3px #0000000a,0 12px 12px -6px #0000000a}.iso-svg{display:block;width:100%;height:auto;overflow:visible}.iso-svg path,.iso-svg circle{vector-effect:non-scaling-stroke}.iso-fill{fill:var(--anatomy-paper);stroke:none}.iso-solid[data-lit]>.iso-fill{fill:var(--anatomy-face)}.iso-shade,.iso-top{stroke:none}.iso-shade[data-shade="0"]{fill:var(--anatomy-shade-0)}.iso-shade[data-shade="1"]{fill:var(--anatomy-shade-1)}.iso-shade[data-shade="2"]{fill:var(--anatomy-shade-2)}.iso-shade[data-shade="3"]{fill:var(--anatomy-shade-3)}.iso-top{fill:var(--anatomy-top)}.iso-solid[data-lit]>.iso-top{fill:var(--anatomy-lit-top)}.iso-solid[data-lit]>.iso-shade{fill:var(--anatomy-lit-shade)}.iso-solid[data-seamless]>.iso-shade,.iso-solid[data-seamless]>.iso-top{stroke-width:.4;stroke-linejoin:round}.iso-solid[data-seamless]>.iso-shade[data-shade="0"]{stroke:var(--anatomy-shade-0)}.iso-solid[data-seamless]>.iso-shade[data-shade="1"]{stroke:var(--anatomy-shade-1)}.iso-solid[data-seamless]>.iso-shade[data-shade="2"]{stroke:var(--anatomy-shade-2)}.iso-solid[data-seamless]>.iso-shade[data-shade="3"]{stroke:var(--anatomy-shade-3)}.iso-solid[data-seamless]>.iso-top{stroke:var(--anatomy-top)}.iso-solid[data-seamless][data-lit]>.iso-top{stroke:var(--anatomy-lit-top)}.iso-solid[data-seamless][data-lit]>.iso-shade{stroke:var(--anatomy-lit-shade)}.iso-solid[data-lit]>.iso-edge{stroke:var(--anatomy-lit)}.iso-halo{fill:var(--anatomy-halo);stroke:none;filter:blur(9px);opacity:var(--anatomy-halo-opacity);transform:translateY(3px)}.iso-line{fill:none;stroke:var(--anatomy-lo);stroke-width:var(--anatomy-weight);stroke-linecap:round;stroke-linejoin:round}.iso-line[data-tone=hi]{stroke:var(--anatomy-hi)}.iso-line[data-tone=mid]{stroke:var(--anatomy-mid)}.iso-line[data-tone=lo]{stroke:var(--anatomy-lo)}.iso-line[data-tone=faint]{stroke:var(--anatomy-faint)}.iso-line[data-tone=lit]{stroke:var(--anatomy-lit)}.iso-line[data-tone=red]{stroke:var(--anatomy-red)}.iso-line[data-tone=green]{stroke:var(--anatomy-green)}.iso-line[data-tone=blue]{stroke:var(--anatomy-blue)}.iso-line[data-dotted]{stroke-dasharray:.01 3.5;stroke-width:1}.iso-line[data-dashed]{stroke-dasharray:3 3}.iso-line[data-flow]{stroke-dasharray:2 6}.iso-wire-end{fill:var(--anatomy-paper);stroke:var(--anatomy-lo);stroke-width:var(--anatomy-weight)}.iso-wire[data-tone=hi] .iso-wire-end{stroke:var(--anatomy-hi)}.iso-wire[data-tone=mid] .iso-wire-end{stroke:var(--anatomy-mid)}.iso-wire[data-tone=faint] .iso-wire-end{stroke:var(--anatomy-faint)}.iso-wire[data-tone=lit] .iso-wire-end{stroke:var(--anatomy-lit)}.iso-dots circle{fill:var(--anatomy-dot);stroke:none;opacity:.32}.iso-dots[data-tone=hi] circle{opacity:.85}.iso-dots[data-tone=mid] circle{opacity:.45}.iso-dots[data-tone=lo] circle{opacity:.22}.iso-dots[data-tone=faint] circle{opacity:.12}.iso-face-text{fill:var(--anatomy-mid);font-family:var(--anatomy-mono);letter-spacing:.04em}.iso-face-text[data-tone=hi]{fill:var(--anatomy-hi)}.iso-face-text[data-tone=lo]{fill:var(--anatomy-lo)}.iso-face-text[data-tone=faint]{fill:var(--anatomy-faint)}.tb-body{fill:var(--anatomy-shade-2);stroke:none}.tb-shine{fill:var(--anatomy-top);stroke:none}.tb-shade{fill:var(--anatomy-shade-0);stroke:none}.tb-ring{fill:none;stroke:var(--anatomy-lo);stroke-width:.45;stroke-linecap:butt;stroke-linejoin:round}.tb-ring[data-tone=mid]{stroke:var(--anatomy-mid)}.tb-ring[data-tone=faint]{stroke:var(--anatomy-faint)}.tb-ring[data-tone=hi]{stroke:var(--anatomy-hi)}@keyframes iso-flow{to{stroke-dashoffset:-32}}@keyframes iso-pulse{0%,to{opacity:.18}12%{opacity:1}40%{opacity:.18}}.iso-line[data-flow]{animation:iso-flow 1.6s linear infinite}.iso-dots circle[data-pulse]{animation:iso-pulse 1.6s steps(1,end) infinite;animation-delay:var(--pulse-at,0ms)}.iso-figure{margin:32px 0 36px}.iso-plate{position:relative;padding:52px 24px;border-radius:0;background:var(--anatomy-card);box-shadow:0 0 0 1px var(--anatomy-mid);--anatomy-paper:var(--anatomy-card)}.iso-plate-corners{position:absolute;inset:18px 20px;pointer-events:none}.iso-plate-corner{position:absolute;color:var(--anatomy-muted);font-family:var(--anatomy-mono);font-size:10.5px;line-height:1;letter-spacing:.04em;white-space:nowrap}.iso-plate-corner[data-corner=fig]{top:0;left:0;color:var(--anatomy-text)}.iso-plate-corner[data-corner=title]{top:0;right:0;text-transform:uppercase;letter-spacing:.1em}.iso-plate-corner[data-corner=hint]{bottom:0;left:0;text-transform:uppercase;letter-spacing:.1em}.iso-plate-corner[data-corner=readout]{right:0;bottom:0;color:var(--anatomy-text);font-variant-numeric:tabular-nums}.iso-plate .iso-svg{margin:0 auto}.iso-legend{display:grid;gap:8px;margin-top:12px;color:var(--anatomy-muted);font-size:13px;line-height:1.55}.iso-keys{display:flex;flex-wrap:wrap;gap:6px 18px}.iso-key{display:inline-flex;align-items:center;gap:7px}.iso-swatch{width:16px;height:10px;flex:none;overflow:visible}.iso-swatch path{fill:none;stroke:var(--anatomy-hi);stroke-width:1;vector-effect:non-scaling-stroke;stroke-linejoin:round;stroke-linecap:round}.iso-swatch[data-mark=raised] path,.iso-swatch[data-mark=flat] path{stroke:var(--anatomy-mid)}.iso-swatch[data-mark=lit] path{stroke:var(--anatomy-lit)}.iso-swatch[data-mark=dim] path{stroke:var(--anatomy-lo)}.iso-swatch[data-mark=dotted] path{stroke-dasharray:.01 3;stroke-width:1.4}.iso-swatch[data-mark=dashed] path{stroke-dasharray:3 2.5}.iso-swatch[data-mark=red] path{stroke:var(--anatomy-red)}.iso-swatch[data-mark=green] path{stroke:var(--anatomy-green)}.iso-swatch[data-mark=blue] path{stroke:var(--anatomy-blue)}.iso-swatch-crease{stroke:var(--anatomy-lo)!important}@media(max-width:560px){.iso-plate{padding:48px 12px 70px}.iso-plate-corner[data-corner=hint]{bottom:18px}}@media(prefers-reduced-motion:reduce){.iso-line[data-flow],.iso-dots circle[data-pulse]{animation:none}}:root{--paper:#f8f5ed;--ink:#17362b}body{background:var(--paper)}header{position:absolute;inset:0 0 auto;height:100px;padding:0 7%;z-index:10}nav{gap:38px}nav a{padding:12px 0}nav a:hover,footer a:hover{text-decoration:underline;text-underline-offset:5px}.wordmark{letter-spacing:-2.7px}.masthead{position:relative;min-height:940px;height:min(1050px,74vw);overflow:hidden;isolation:isolate;text-align:center}.garden-art{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center bottom;z-index:-2;will-change:transform}.masthead:after{content:"";position:absolute;inset:auto 0 0;height:45px;background:linear-gradient(transparent,var(--paper));pointer-events:none}.welcome-copy{position:relative;z-index:2;padding:145px 24px 0}.welcome-copy h1{font-size:clamp(72px,7.1vw,110px);line-height:.91;letter-spacing:-2.5px;margin:0 auto 28px}.welcome-copy h1 em{font-style:normal}.welcome-copy p{font-size:18px;line-height:1.55;max-width:660px;margin:0 auto 22px;color:#344c40}.welcome-copy .button{padding:16px 28px}.preview-note{display:block;margin:14px auto 0;font-size:12px;color:#4e6254}.garden-bloop{position:absolute;height:176px;width:auto;bottom:16%;left:50%;transform:translate(-50%);filter:drop-shadow(0 5px 4px #19332415)}.scroll-invitation{position:absolute;bottom:31px;left:7%;color:var(--paper);font-size:11px;display:flex;align-items:center;gap:18px;z-index:2}.scroll-invitation span{font-size:23px}.introduction{padding:105px 9% 80px;display:grid;grid-template-columns:1.2fr 1fr;align-items:center;gap:100px;max-width:1440px;margin:auto}h2{font-size:clamp(42px,4.6vw,68px);line-height:1.02;letter-spacing:-1.5px}.introduction h2{margin:0}.introduction>div{border-left:1px solid #a5b2a2;padding-left:38px;max-width:420px}.introduction p{font-size:17px;line-height:1.7;color:#435749;margin-bottom:14px}.introduction p:last-child{margin:0}.lesson-section{padding:20px 0 85px;background:none}.sample-heading{padding:20px 7% 0;display:flex;gap:28px;flex-wrap:wrap;align-items:center;justify-content:center}.sample-heading h2{font-size:36px;letter-spacing:-.5px;margin:0}.sample-heading p{flex-basis:100%;text-align:center;font-size:14px;color:#60725f;margin:0}.section-rule{width:80px;height:1px;background:#bdc7b5}.lesson-section .book-stage{margin-top:0;height:630px}.lesson-section .bloop-guide{top:4%;left:72%;width:110px}.lesson-section .lesson-dock{margin-top:-28px}.demo-note{color:#60705e;padding:0 20px;line-height:1.5}.text-lesson{color:#435749}.approach{background:#183c2e;color:#f8f5ed;display:grid;grid-template-columns:1fr 1fr;padding:110px 9%;gap:90px;position:relative}.approach-title{align-self:center}.approach h2{font-size:clamp(54px,5.4vw,82px);margin:0 0 25px}.approach .eyebrow{display:block;color:#c3d0b9}.approach-title>p{color:#d0dacb;font-size:15px;line-height:1.6}.principles{max-width:580px}.principles article{display:flex;gap:27px;border-bottom:1px solid #ffffff30;padding:29px 0}.principles article:first-child{padding-top:0}.principles article:last-child{border:0;padding-bottom:0}.principles article>span{font:18px Instrument,serif;color:#c4d3b8;padding-top:5px}.principles h3{font-size:29px;line-height:1.2;margin:0 0 9px}.principles p{font-size:14px;line-height:1.7;color:#d3dece;margin:0}.thinking-section{padding:115px 9%;gap:90px}.thinking-copy>p:not(.eyebrow){color:#435749;font-size:16px}.anatomy-card{border:0;border-radius:0;background:#ebeddf;padding:30px;transform:rotate(1.5deg);box-shadow:0 15px 32px #344e3210}.figure-top,.figure-bottom{color:#4c654d}.story{background:#ecefe3;padding:80px 13%;gap:90px;border:0;grid-template-columns:240px 1fr}.story img{width:205px;justify-self:center}.story p:not(.eyebrow){color:#435749;max-width:590px;font-size:16px}.story h2{font-size:58px}.questions{padding:105px 24px 115px;text-align:center}.questions h2{font-size:52px;margin-bottom:44px}.faq-list{max-width:850px;margin:0 auto;text-align:left;border-top:1px solid #bcc7b8}.faq-list details{border-bottom:1px solid #bcc7b8}.faq-list summary{list-style:none;cursor:pointer;display:flex;gap:30px;justify-content:space-between;align-items:center;padding:23px 0;font:25px/1.3 Instrument,Georgia,serif}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary span{font:22px Arial;color:#57735b;transition:transform .2s}.faq-list details[open] summary span{transform:rotate(45deg)}.faq-list details p{max-width:700px;margin:0 0 25px;font-size:16px;line-height:1.8;color:#435749}.faq-list details a{text-decoration:underline;text-underline-offset:3px}.closing{min-height:610px;padding:70px 24px 0;background:#e9eddf;isolation:isolate}.closing h2{font-size:clamp(65px,7vw,104px);line-height:.97;margin-bottom:25px}.closing>p{position:relative;z-index:2;font-size:22px}.closing-garden{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center 72%;z-index:-2;opacity:.52}.closing:before{content:"";position:absolute;inset:0;background:linear-gradient(#ecf0e2 20%,#ecf0e277 60%,transparent);z-index:-1}footer{background:#f8f5ed;padding:45px 7% 30px}footer .wordmark{font-size:60px;letter-spacing:-4px}footer>div{font-size:13px;gap:25px}.source-note{color:#657760;max-width:900px;font-size:11px}.js-ready .reveal{opacity:0;transform:translateY(24px);transition:opacity .8s ease,transform .8s cubic-bezier(.2,.6,.3,1)}.js-ready .reveal.is-visible{opacity:1;transform:none}.exploring-book .lesson-section{padding:0}.exploring-book .lesson-section .book-stage{height:100dvh;margin:0}.exploring-book .lesson-section .lesson-dock{margin:0}@media(min-width:1600px){.masthead{height:1030px}}@media(max-width:800px){header{height:83px;padding:0 6%}header .wordmark{font-size:35px}.masthead{height:900px;min-height:0}.garden-art{object-position:center bottom}.welcome-copy{padding-top:133px}.welcome-copy h1{font-size:76px}.welcome-copy p{font-size:16px;max-width:440px}.garden-bloop{height:140px;bottom:17%}.introduction{padding:75px 8%;grid-template-columns:1fr;gap:30px}.introduction>div{padding-left:22px;max-width:550px}.sample-heading{gap:18px}.sample-heading h2{font-size:31px}.section-rule{width:35px}.lesson-section .book-stage{height:470px}.lesson-section .bloop-guide{top:5%;left:auto;right:13%;width:85px}.approach{grid-template-columns:1fr;padding:70px 8%;gap:30px}.approach h2{font-size:61px}.thinking-section{padding:75px 8%;gap:40px;grid-template-columns:1fr}.thinking-copy>p:not(.eyebrow){max-width:580px}.story{grid-template-columns:150px 1fr;gap:30px;padding:65px 8%}.story img{width:140px}.story h2{font-size:45px}.questions{padding:75px 8%}.questions h2{font-size:42px}.faq-list summary{font-size:23px}footer{gap:25px}}@media(max-width:480px){.masthead{height:860px}.welcome-copy{padding:124px 23px 0}.welcome-copy h1{font-size:66px;line-height:.94;letter-spacing:-1.5px;margin-bottom:24px}.welcome-copy p{font-size:15px;line-height:1.6;max-width:340px}.welcome-copy .button{font-size:14px}.preview-note{font-size:10px}.garden-bloop{height:125px;bottom:17%}.scroll-invitation{font-size:10px;bottom:30px}.sample-heading h2{max-width:280px;text-align:center;font-size:32px}.section-rule{display:none}.sample-heading p{font-size:12px}.lesson-section{padding-bottom:60px}.lesson-section .book-stage{height:425px}.lesson-section .bloop-guide{top:6%;right:12%;width:70px}.lesson-section .bloop-guide .hint{padding:6px;font-size:9px}.introduction h2{font-size:42px}.introduction p{font-size:15px}.principles h3{font-size:26px}.story{grid-template-columns:1fr;gap:28px}.story img{width:125px}.story h2{font-size:44px}.questions h2{font-size:39px}.faq-list summary{font-size:22px;padding:20px 0}.faq-list details p{font-size:14px}.closing{min-height:530px}.closing h2{font-size:68px}footer{padding:32px 7%}footer>div{flex-wrap:wrap;gap:18px 22px}footer .wordmark{font-size:52px}}@media(prefers-reduced-motion:reduce){.js-ready .reveal{opacity:1;transform:none;transition:none}.garden-art{transform:none!important}}body.still .reveal{opacity:1;transform:none}.lesson-section .book-stage{scroll-margin-top:145px}.closing-garden{opacity:.85}.welcome-copy h1{animation:welcome-in .9s cubic-bezier(.2,.65,.3,1) both}.welcome-copy p{animation:welcome-in .9s .12s cubic-bezier(.2,.65,.3,1) both}.welcome-copy .button,.preview-note{animation:welcome-in .9s .24s cubic-bezier(.2,.65,.3,1) both}.garden-bloop{animation:plant-in 1.1s .3s cubic-bezier(.2,.65,.3,1) both}@keyframes welcome-in{0%{opacity:0;translate:0 16px}to{opacity:1;translate:0 0}}@keyframes plant-in{0%{opacity:0;translate:0 20px}to{opacity:1;translate:0 0}}@media(max-width:480px){.lesson-section .book-stage{scroll-margin-top:150px}}@media(prefers-reduced-motion:reduce){.welcome-copy h1,.welcome-copy p,.welcome-copy .button,.preview-note,.garden-bloop{animation:none}html{scroll-behavior:auto}}@media(max-width:360px){.welcome-copy h1{font-size:56px}}
