@charset "UTF-8";
:root{--ink:#25372f;--muted:#55655c;--paper:#f8f7f1;--white:#fff;--line:#d6dcd2;--sage:#e7eee3;--green:#305740;--lavender:#edeaf4;--orange:#fae3c9;--radius:18px}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0;color:var(--ink);background:var(--paper);font:16px/1.6 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}button,input{font:inherit}a{color:inherit;text-underline-offset:4px}button,a,input{ -webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:wait}button,a,input{touch-action:manipulation}button:focus-visible,a:focus-visible,input:focus-visible+span,summary:focus-visible{outline:3px solid #7c51b2;outline-offset:4px}img,svg{display:block}h1,h2,h3,p{margin:0}h1,h2{font-family:Georgia,"Times New Roman",serif;font-weight:400;letter-spacing:-.045em;line-height:1.08}h3{line-height:1.35}h1{font-size:clamp(44px,6.1vw,76px)}h2{font-size:clamp(32px,4vw,48px)}.wrap{width:min(1180px,calc(100% - 64px));margin:auto}.eyebrow{font-size:11px;letter-spacing:.16em;font-weight:700;text-transform:uppercase}.muted{color:var(--muted)}.skip{position:absolute;left:20px;top:-80px;background:white;padding:14px;z-index:20}.skip:focus{top:10px}.topnote{background:var(--sage);text-align:center;font-size:12px;padding:8px 16px;color:#455a49}.topnote span{margin:0 8px;color:#899b89}header{border-bottom:1px solid var(--line)}.nav{display:flex;align-items:center;justify-content:space-between;min-height:88px;gap:24px}.brand{font-family:Georgia,serif;font-size:25px;font-weight:500;text-decoration:none;display:flex;align-items:center;gap:12px;letter-spacing:-.06em}.brand svg{width:34px;height:34px}.navlinks{display:flex;gap:28px;align-items:center}.navlinks a{font-size:13px;text-decoration:none}.navlinks a:hover{text-decoration:underline}.navlinks .smallcta{border:1px solid #b5c1b4;padding:10px 17px;border-radius:100px}.hero{padding:72px 0 74px;display:grid;grid-template-columns:1.03fr 1fr;gap:60px;align-items:center}.hero .eyebrow{display:flex;align-items:center;gap:8px;margin-bottom:24px}.dot{width:7px;height:7px;border-radius:50%;background:#5f7d50}.hero h1{max-width:630px}.hero h1 em{font-weight:400;color:#638061}.hero p{max-width:490px;color:var(--muted);font-size:17px;line-height:1.75;margin-top:26px}.button{display:inline-flex;align-items:center;justify-content:center;gap:12px;min-height:48px;background:var(--green);border:1px solid var(--green);padding:13px 22px;border-radius:100px;text-decoration:none;color:white;font-size:14px;font-weight:600}.button:hover{background:#244c34}.button.secondary{background:transparent;color:var(--ink);border-color:#b6c2b3}.button.secondary:hover{background:var(--sage)}.hero .button{margin-top:30px}.hero-note{display:flex;flex-wrap:wrap;gap:8px 20px;font-size:12px;margin-top:24px;color:#627062}.hero-note span:before{content:'✓';padding-right:7px;color:#55704b}.sheet-scene{position:relative;min-height:420px;background:var(--sage);border-radius:48% 46% 43% 40%;display:flex;align-items:center;justify-content:center}.mini-sheet{position:absolute;background:white;border:1px solid #d2d8ce;box-shadow:0 12px 22px #26372815;width:210px;padding:0;overflow:hidden}.mini-sheet svg{width:100%;height:auto}.mini-sheet.one{transform:rotate(-13deg);left:14px;top:54px}.mini-sheet.two{transform:rotate(8deg);right:5px;top:34px}.mini-sheet.three{transform:rotate(-2deg);left:calc(50% - 107px);top:98px;z-index:2}.scene-star{position:absolute;color:#85906a;font-family:Georgia,serif;font-size:52px;right:2px;bottom:22px}.scene-label{position:absolute;left:10px;bottom:20px;font-size:11px;text-transform:uppercase;letter-spacing:.1em;display:flex;align-items:center;gap:10px}.scene-label:before{content:'';width:35px;height:1px;background:#83977d;transform:rotate(-30deg)}.strip{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:23px 0;display:flex;gap:25px;justify-content:space-between;align-items:center;font-size:13px}.strip .eyebrow{color:#6b7c6a}.strip span{display:flex;align-items:center;gap:10px}.number{border:1px solid #a8b9a3;min-width:29px;height:29px;border-radius:50%;display:grid;place-items:center;font:14px Georgia,serif}.contexts{padding:68px 0 74px}.section-head{display:flex;justify-content:space-between;gap:35px;align-items:end;margin-bottom:30px}.section-head p{max-width:410px;color:var(--muted);font-size:14px}.context-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.context-card{border:1px solid var(--line);border-radius:var(--radius);padding:25px;background:#fafbf7;display:flex;flex-direction:column;position:relative;text-decoration:none;transition:transform .2s,border-color .2s}.context-card:hover{transform:translateY(-4px);border-color:#8fa48a}.context-card:nth-child(2){background:var(--lavender)}.context-card:nth-child(3){background:#fcf0e1}.context-icon{width:64px;height:64px;margin-bottom:21px}.context-card h3{font-size:19px;font-weight:600}.context-card p{font-size:13px;color:var(--muted);margin:10px 0 24px;flex:1}.text-link{font-size:13px;font-weight:600}.text-link span{float:right}.maker-section{padding:62px 0 70px;background:#edf0e9;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.maker-heading{margin-bottom:34px;display:flex;gap:40px;justify-content:space-between;align-items:end}.maker-heading p{color:var(--muted);font-size:14px;max-width:380px}.maker-heading .eyebrow{margin-bottom:12px}.maker{display:grid;grid-template-columns:340px 1fr;gap:26px;align-items:start}.controls{background:white;border:1px solid #d5ddd1;border-radius:var(--radius);padding:25px}fieldset{border:0;padding:0;margin:0 0 23px;min-width:0}legend{font-size:13px;font-weight:700;margin-bottom:10px;padding:0;display:flex;gap:9px;align-items:center}.step{font:12px/1.4 Georgia,serif;border-radius:50%;background:var(--sage);display:inline-grid;place-items:center;width:22px;height:22px}.choice{display:block;position:relative;margin:8px 0}.choice input{position:absolute;left:15px;top:50%;margin:0;transform:translateY(-50%);accent-color:var(--green);width:15px;height:15px;z-index:1}.choice span{display:block;padding:11px 13px 11px 40px;border:1px solid var(--line);border-radius:10px;min-height:46px;font-size:13px}.choice small{display:block;color:var(--muted);font-size:11px;line-height:1.6;margin-top:3px}.choice input:checked+span{border-color:#64835a;background:#eff4ec}.rowchoices{display:grid;grid-template-columns:1fr 1fr;gap:9px}.rowchoices .choice{margin:0}.rowchoices .choice span{padding:11px 8px 11px 34px}.rowchoices .choice 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10px;white-space:nowrap;color:#56704f}.tabs{display:flex;gap:6px;padding:15px 18px 2px;flex-wrap:wrap}.tabs button{min-height:44px;border:1px solid transparent;border-radius:8px;padding:8px 12px;background:transparent;font-size:12px;color:var(--muted)}.tabs button[aria-selected=true]{background:white;border-color:#cbd5c5;color:var(--ink);font-weight:600}.tabs button:hover{background:#e8ede4}.preview-canvas{padding:19px 28px 24px;display:flex;justify-content:center}.preview-paper{width:min(100%,470px);box-shadow:0 5px 15px #25372f13;border:1px solid #dee0da;background:white}.preview-paper svg{width:100%;height:auto}.preview-caption{font-size:11px;text-align:center;color:var(--muted);padding:0 20px 21px}.instructions{padding:70px 0}.instruction-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:70px}.instruction-grid h2{max-width:380px}.instruction-grid p{color:var(--muted);margin-top:20px;font-size:14px}.instruction-list{list-style:none;margin:0;padding:0}.instruction-list li{display:flex;gap:18px;padding:0 0 24px;margin-bottom:23px;border-bottom:1px solid var(--line)}.instruction-list h3{font-size:15px;margin-bottom:7px}.instruction-list p{margin:0;font-size:13px}.faq{padding:5px 0 72px}.faq h2{font-size:35px;margin-bottom:25px}details{border-top:1px solid var(--line);padding:17px 0}details:last-child{border-bottom:1px solid var(--line)}summary{cursor:pointer;font-size:14px;font-weight:600;min-height:32px}details p{color:var(--muted);font-size:13px;max-width:820px;padding-top:14px;line-height:1.8}footer{border-top:1px solid var(--line);padding:35px 0 27px}.footer-top{display:flex;justify-content:space-between;gap:35px;align-items:start}.footer-top .brand{font-size:21px}.footer-top p{font-size:12px;color:var(--muted);max-width:380px;margin-top:12px}.footer-links{display:flex;gap:24px;font-size:12px;flex-wrap:wrap;padding-top:6px}.footer-bottom{border-top:1px solid var(--line);margin-top:27px;padding-top:17px;font-size:11px;color:#6a776b;display:flex;justify-content:space-between;gap:20px}.content{max-width:780px;padding:60px 0 80px}.content h1{font-size:52px;margin-bottom:25px}.content h2{font:28px/1.3 Georgia,serif;letter-spacing:-.03em;margin:34px 0 13px}.content p{margin:15px 0;color:var(--muted)}.content ul{padding-left:22px;color:var(--muted)}.breadcrumbs{font-size:12px;color:var(--muted);margin-bottom:24px}.context-hero{padding-top:53px}.context-hero h1{font-size:clamp(43px,5.5vw,66px)}.context-intro{padding:0 0 60px;display:grid;grid-template-columns:1fr 1fr;gap:32px}.note-card{border-left:3px solid #9dab8f;padding-left:23px}.note-card h3{font-size:16px}.note-card p{font-size:14px;color:var(--muted);margin-top:11px}.sample-caption{position:absolute;bottom:10px;right:22px;background:#fff;border:1px solid var(--line);padding:7px 13px;border-radius:100px;font-size:11px;z-index:3}.noscript{padding:18px;background:#fff0d8;color:#4f3c29}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}.preview-panel.error{padding:20px}.print-note{font-size:12px;color:var(--muted);margin:15px 0 0}.legal-date{font-size:12px;border:1px solid var(--line);padding:8px 12px;display:inline-block;border-radius:9px}
@media(max-width:960px){.hero{gap:30px;padding-top:50px}.sheet-scene{min-height:380px}.mini-sheet{width:170px}.mini-sheet.one{left:0}.mini-sheet.two{right:0}.mini-sheet.three{left:calc(50% - 85px)}.scene-label{font-size:9px}.maker{grid-template-columns:300px 1fr;gap:18px}.controls{padding:19px}.preview-canvas{padding:18px}.strip{flex-wrap:wrap;justify-content:center}.strip>.eyebrow{width:100%;text-align:center}.instruction-grid{gap:35px}.tabs{gap:0;padding-inline:9px}.tabs button{font-size:11px;padding:8px 10px}}
@media(max-width:700px){.wrap{width:calc(100% - 36px)}.nav{min-height:76px;gap:12px}.brand{font-size:22px;gap:8px}.brand svg{width:28px}.navlinks{gap:0}.navlinks>a:not(.smallcta){display:none}.navlinks .smallcta{font-size:11px;padding:9px 13px}.topnote{font-size:10px}.hero{grid-template-columns:1fr;padding:40px 0 38px;gap:30px}.hero .eyebrow{margin-bottom:18px;font-size:10px}.hero p{font-size:15px;margin-top:22px}.hero .button{margin-top:23px}.hero-note{font-size:11px;margin-top:19px}.sheet-scene{min-height:338px;width:100%;max-width:460px;margin:10px auto 0}.mini-sheet{width:170px}.mini-sheet.one{top:25px;left:6%}.mini-sheet.two{top:8px;right:6%}.mini-sheet.three{top:53px}.scene-star{font-size:37px;bottom:4px;right:15px}.scene-label{left:5%;bottom:11px}.strip{gap:15px;padding:19px 0;font-size:11px}.strip .eyebrow{display:none}.strip span{gap:6px}.number{min-width:23px;height:23px;font-size:12px}.contexts{padding:42px 0}.section-head{display:block;margin-bottom:24px}.section-head p{margin-top:16px;font-size:13px}.context-grid{grid-template-columns:1fr;gap:12px}.context-card{padding:21px 21px 21px 88px}.context-icon{position:absolute;left:18px;top:22px;width:49px;height:49px;margin:0}.context-card p{margin:7px 0 13px;font-size:12px}.context-card h3{font-size:18px}.maker-section{padding:42px 0}.maker-heading{display:block}.maker-heading p{margin-top:16px;font-size:13px}.maker{grid-template-columns:1fr}.controls{padding:24px}.preview-top{padding:16px 18px}.preview-canvas{padding:17px}.tabs{justify-content:center;gap:4px;padding:12px 10px 0}.tabs button{font-size:11px;padding:9px 10px}.instructions{padding:43px 0}.instruction-grid{grid-template-columns:1fr;gap:26px}.instruction-list li{padding-bottom:17px;margin-bottom:19px}.instruction-grid>div>p{font-size:13px}.faq{padding-bottom:42px}.faq h2{font-size:30px}.footer-top{display:block}.footer-links{margin-top:24px;gap:20px}.footer-bottom{display:block;line-height:1.8}.footer-bottom span{display:block;margin-top:8px}.content{padding:38px 0 50px}.content h1{font-size:40px}.context-intro{grid-template-columns:1fr;gap:24px;padding-bottom:39px}.context-hero{padding-top:33px}.sample-caption{bottom:4px;right:50px;font-size:9px;padding:4px 9px}.breadcrumbs{margin-bottom:15px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.context-card{transition:none}.context-card:hover{transform:none}}
@media print{body>*{display:none}body:after{display:block;content:'Download the activity PDF, then print that file at 100% / Actual size.';padding:30px}}
.activity-choice{display:flex;align-items:center;gap:10px;padding:10px 0;min-height:52px;border-bottom:1px solid #e3e8df;cursor:pointer}.activity-choice input{width:17px;height:17px;accent-color:var(--green);margin:0;flex-shrink:0}.activity-choice b{font-size:12px;font-weight:600;display:block;line-height:1.4}.activity-choice small{font-size:10px;color:var(--muted);display:block;line-height:1.5;margin-top:3px}.activity-choice input:focus-visible{outline:3px solid #7c51b2;outline-offset:4px}.range-note{font-size:12px;line-height:1.65;padding:12px;background:var(--sage);border-radius:10px;margin-bottom:13px}.preview-panel{position:sticky;top:20px}.included-note{margin:0 22px 22px;padding:14px 17px;background:#edf1e8;border-radius:10px;font-size:12px}.included-note p{font-size:11px;color:var(--muted);margin-top:5px}.first-answer-tab{border-left-color:#bfcbb7!important}.empty-preview{padding:30px;font-size:14px}.activity-library{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line);border-left:1px solid var(--line)}.activity-library>div{padding:23px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}.activity-library h3{font-size:16px;margin:10px 0 8px}.activity-library p{font-size:12px;color:var(--muted)}.library-overview{padding-bottom:70px}.scene-label{bottom:0}.preview-top{align-items:start}.tag{white-space:normal;text-align:center;max-width:130px}.button:disabled{opacity:.55;cursor:default}
@media(max-width:960px){.activity-library{grid-template-columns:repeat(2,1fr)}}
@media(max-width:700px){.preview-panel{position:static}.library-overview{padding-bottom:42px}.activity-library>div{padding:18px 15px}.activity-library h3{font-size:14px}.activity-library p{font-size:11px}.included-note{margin-inline:17px}.tabs button{font-size:10px;padding:8px}.scene-label{bottom:11px}.preview-top .tag{max-width:110px}}
.hero-universal h1{font-size:clamp(42px,5.1vw,64px)}.library-overview{padding-top:60px}
@media(max-width:700px){.library-overview{padding-top:40px}.hero-universal h1{font-size:43px}}
.nav .brand,.navlinks .smallcta,.footer-links a{min-height:44px}.navlinks .smallcta,.footer-links a{display:inline-flex;align-items:center}summary{min-height:44px}
/* Local, hand-written activity guides reuse the existing paper and type palette. */
.library-guide-link{margin-top:24px;color:var(--muted);font-size:14px}.guide{max-width:1000px;padding:42px 0 60px}.guide h1{margin:18px 0 24px;max-width:850px}.guide-lead{font-size:18px;max-width:720px;color:var(--muted);margin-bottom:26px}.guide-nav{display:flex;flex-wrap:wrap;gap:8px 24px;margin:36px 0 44px;padding:18px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.guide-nav a{display:inline-flex;align-items:center;min-height:44px;font-size:14px}.guide-nav [aria-current=page]{font-weight:700}.guide section{margin:42px 0}.guide h2{font-size:clamp(30px,4vw,42px);margin-bottom:20px}.guide h3{font-size:19px}.guide p{margin:15px 0;color:var(--muted);max-width:780px}.guide li{padding-left:5px;margin:10px 0}.guide ol,.guide ul{padding-left:25px;color:var(--muted);max-width:800px}.guide-cards{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:25px}.guide-cards>a{border:1px solid var(--line);border-radius:18px;padding:25px;text-decoration:none;background:#fafbf7}.guide-cards>a:nth-child(2){background:var(--lavender)}.guide-cards span{font-size:13px;font-weight:600;text-decoration:underline;text-underline-offset:4px}.guide-levels{margin:25px 0;padding:0}.guide-levels>div{border-top:1px solid var(--line);padding:20px 0;display:grid;grid-template-columns:260px 1fr;gap:28px}.guide-levels dt{font-weight:600}.guide-levels dd{margin:0;color:var(--muted)}.guide-example{display:grid;grid-template-columns:260px 1fr;gap:32px;align-items:start;margin:34px 0;padding:26px;border:1px solid var(--line);border-radius:18px;background:#fff}.guide-example figure{margin:0}.mini-maze{max-width:100%;height:auto;margin:auto}.guide figcaption,.guide .sample-note{font-size:12px;line-height:1.65;color:var(--muted)}.guide figcaption{margin-top:12px;text-align:center}.guide details{margin:16px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.guide summary{display:flex;align-items:center;cursor:pointer;font-size:14px;font-weight:600;padding:12px 0}.guide summary:before{content:'+';margin-right:12px}.guide details[open]>summary:before{content:'−'}.guide details p{font-size:14px}.word-example{border-collapse:collapse;width:100%;table-layout:fixed;text-align:center;font-size:17px;background:white}.word-example caption{font-size:12px;font-weight:600;margin-bottom:12px;text-align:left}.word-example td{border:1px solid var(--line);height:34px;font-weight:600}.word-example th{font-size:11px;color:var(--muted);height:24px}.sr-only{position:absolute;clip:rect(0,0,0,0);width:1px;height:1px;overflow:hidden;white-space:nowrap}.guide-end{padding:32px;border-radius:18px;background:var(--sage);margin-top:46px}.guide .button{margin-top:8px}.guide-end h2{max-width:700px}.guide .breadcrumbs{font-size:12px;margin-bottom:28px}
@media(max-width:700px){.guide{padding-top:30px}.guide h1{font-size:42px}.guide-lead{font-size:16px}.guide-nav{margin:28px 0;gap:4px 18px}.guide section{margin:34px 0}.guide-cards{grid-template-columns:1fr}.guide-levels>div{grid-template-columns:1fr;gap:10px}.guide-example{grid-template-columns:1fr;gap:24px;padding:20px}.guide-example>div:first-child{width:min(260px,100%);margin:auto}.guide-end{padding:24px}.guide-nav a{font-size:12px}}