@font-face{font-family:DM Sans;font-style:normal;font-display:swap;font-weight:400;src:url(/assets/dm-sans-latin-400-normal-CW0RaeGs.woff2) format("woff2"),url(/assets/dm-sans-latin-400-normal-BwCSEQnW.woff) format("woff")}@font-face{font-family:DM Sans;font-style:normal;font-display:swap;font-weight:500;src:url(/assets/dm-sans-latin-500-normal-B9HHJjqV.woff2) format("woff2"),url(/assets/dm-sans-latin-500-normal-Dr3UlScf.woff) format("woff")}@font-face{font-family:DM Sans;font-style:normal;font-display:swap;font-weight:700;src:url(/assets/dm-sans-latin-700-normal-DvUfVpUG.woff2) format("woff2"),url(/assets/dm-sans-latin-700-normal-CUSSCpQX.woff) format("woff")}@font-face{font-family:DM Sans;font-style:normal;font-display:swap;font-weight:900;src:url(/assets/dm-sans-latin-900-normal-BmOyECvA.woff2) format("woff2"),url(/assets/dm-sans-latin-900-normal-Bm36EmVp.woff) format("woff")}@font-face{font-family:Archivo Black;font-style:normal;font-display:swap;font-weight:400;src:url(/assets/archivo-black-latin-400-normal-BTVu2TQR.woff2) format("woff2"),url(/assets/archivo-black-latin-400-normal-HW9MwEcM.woff) format("woff")}@font-face{font-family:Kalam;font-style:normal;font-display:swap;font-weight:400;src:url(/assets/kalam-latin-400-normal-BthBl_aR.woff2) format("woff2"),url(/assets/kalam-latin-400-normal-Bl-H2BUA.woff) format("woff")}:root{font-family:DM Sans,sans-serif;color:#241f1b;background:#f1e9dc;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;--paper: #f3ebdd;--ink: #241f1b;--red: #a83b25;--muted: #625a50;--rule: #b8ac99}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:28px}body{margin:0}button,input,select,textarea{font:inherit;color:inherit}button,a,select{-webkit-tap-highlight-color:transparent}button,select{cursor:pointer}button{border-radius:0}a{color:inherit;text-underline-offset:.22em}button:focus-visible,a:focus-visible,select:focus-visible,textarea:focus-visible,[tabindex="0"]:focus-visible{outline:2px solid var(--red);outline-offset:5px}button:disabled{cursor:default}p,h1,h2,h3,h4{margin:0}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip-link{position:fixed;z-index:100;top:8px;left:8px;padding:14px 20px;background:var(--ink);color:var(--paper);transform:translateY(-180%)}.skip-link:focus{transform:none}.eyebrow{font-size:13px;font-weight:700;letter-spacing:.18em;line-height:1.4}.content-width{width:min(1240px,calc(100% - 128px));margin-inline:auto}.section-space{padding-block:110px}h2{font-weight:900;font-size:clamp(40px,4.1vw,64px);letter-spacing:-.065em;line-height:1.03}h2>span{display:block}.action{display:inline-flex;align-items:center;justify-content:space-between;gap:25px;border:1px solid var(--ink);background:var(--ink);color:#fffaf1;text-decoration:none;padding:21px 28px;font-size:15px;font-weight:700;letter-spacing:.06em;line-height:1.4;min-height:62px;transition:background .15s}.action>span{font-size:27px;line-height:1;font-weight:400}.action:hover{background:#48342b}.text-link{display:inline-flex;align-items:center;gap:18px;width:fit-content;background:none;border:0;border-bottom:1px solid;padding:3px 0 6px;text-decoration:none;font-weight:700;line-height:1.5}.text-link>span{font-size:23px}.text-link:hover{color:var(--red)}.hero-book{position:relative;max-width:1800px;margin:12px auto 0;width:calc(100% - 24px);min-height:850px;background:url(/assets/notebook.png) center / 100% 100% no-repeat;overflow:hidden;isolation:isolate}.hero-bar{position:relative;z-index:10;display:flex;justify-content:space-between;align-items:flex-start;gap:20px;padding:46px 6.2% 20px}.brand{position:relative;display:inline-block;font-size:clamp(19px,2vw,28px);font-weight:900;letter-spacing:-.06em;text-decoration:none;line-height:1.1;white-space:nowrap}.brand:after{content:"";position:absolute;left:0;right:8px;bottom:-10px;border-bottom:4px solid var(--red);transform:rotate(-3deg)}.header-right{display:flex;align-items:center;gap:34px;padding-top:2px}.language-links{display:flex;gap:10px;align-items:center;font-size:15px;font-weight:700}.language-links a{text-decoration:none;padding-bottom:4px;border-bottom:2px solid transparent}.language-links a[aria-current]{border-color:var(--ink)}.language-links>span{font-weight:400}.menu-button{display:flex;align-items:center;gap:14px;border:0;background:none;padding:0 0 4px;font-size:14px;font-weight:500;min-height:30px}.menu-button>span{font-size:24px;font-weight:400}.site-menu{position:absolute;right:6%;top:104px;min-width:260px;display:flex;flex-direction:column;padding:22px 26px;background:#fff8ec;box-shadow:1px 6px 24px #241f1b25;border:1px solid #c6bba7}.site-menu a{padding:12px 0;text-decoration:none;border-bottom:1px solid #d2c6b2;font-weight:500}.site-menu a:last-child{display:flex;justify-content:space-between;border:0}.site-menu a:hover{color:var(--red)}.hero-spread{position:relative;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr)}.hero-left,.hero-right{min-width:0}.hero-left>:where(:not(.sr-only)),.hero-right>:where(:not(.sr-only)){position:relative;z-index:3}.hero-left{padding:45px 3vw 150px 5.6vw}.hero-left>.eyebrow{margin-bottom:14px;font-size:16px;letter-spacing:.16em}h1{font-family:Archivo Black,DM Sans,sans-serif;font-size:clamp(76px,7.9vw,142px);font-weight:900;letter-spacing:-.075em;line-height:.91}h1>span{display:block;white-space:nowrap;transform:scaleX(.89);transform-origin:left center;width:112.36%}.hero-en h1>span:last-child{font-size:.9em}.hero-pt h1{font-size:clamp(72px,6.8vw,122px);line-height:1;letter-spacing:-.072em}.hero-pt h1>span:nth-child(2){font-size:.88em}.hero-support{margin-top:30px;font-size:clamp(21px,2.05vw,31px);line-height:1.25;letter-spacing:-.045em}.hero-support>span{display:block}.hero-action{margin-top:28px;min-width:335px}.hero-boundary{margin-top:16px;max-width:520px;font-size:13px;line-height:1.5}.hero-caption{position:absolute;bottom:105px;left:5.6vw;font-family:Kalam,cursive;font-size:16px;letter-spacing:.02em;transform:rotate(-3deg)}.hero-right{position:relative;padding:140px 6.5vw 100px 4.5vw}.claim-anchor{min-height:104px;font-family:Kalam,cursive;font-size:clamp(35px,3.55vw,61px);font-weight:400;line-height:1.2;color:transparent;pointer-events:none}.note-reply{position:relative;margin:50px 0 0 7%;font-family:Kalam,cursive;font-size:clamp(39px,4.1vw,68px);line-height:1.24;color:var(--red);transform:rotate(-5deg);width:fit-content}.note-reply:after{content:"";position:absolute;left:0;bottom:-7px;width:105%;border-bottom:3px solid;transform:rotate(-3deg)}.note-reply>span{display:block}.note-questions{margin-top:70px;display:flex;justify-content:space-between;gap:20px;font-family:Kalam,cursive;font-size:clamp(24px,2.55vw,41px);color:var(--red);transform:rotate(-4deg)}.note-questions>span{border-bottom:2px solid;line-height:1.3;white-space:nowrap}.hero-pt .note-questions{font-size:clamp(21px,2.1vw,34px);gap:12px}.note-source{position:relative;display:flex;align-items:center;justify-content:space-between;gap:20px;width:fit-content;margin:34px 0 0 auto;padding:8px 12px;background:#f7f0e3;border-bottom:1px solid #b5a58b;box-shadow:1px 3px 4px #241f1b12;font-size:12px;font-weight:500;text-decoration:none;transform:rotate(2deg)}.note-source:hover{color:var(--red)}.note-source>span{font-size:18px}.notebook-tools{position:absolute;bottom:72px;left:4.5vw;right:6.5vw;font-size:12px;line-height:1.5;color:var(--muted)}.notebook-tools>p{margin-bottom:9px}.notebook-tools>div{display:flex;gap:22px}.notebook-tools button{display:inline-flex;align-items:center;gap:7px;min-height:30px;border:0;background:none;border-bottom:1px solid #958573;padding:5px 0;font-size:11px}.notebook-tools button:hover{color:var(--red)}.notebook-tools button>span{font-size:16px}.ink-layer{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;pointer-events:none;z-index:2}.pencil{--pencil-length: 400px;--angle: 0deg;width:44px;height:var(--pencil-length);position:absolute;z-index:5;left:90%;top:40%;transform:translate(-50%,-50%) rotate(var(--angle));background:none;border:0;padding:0;cursor:grab;touch-action:none;user-select:none;-webkit-user-select:none}.pencil img{position:absolute;height:100%;width:auto;max-width:none;left:50%;top:0;transform:translate(-50%);pointer-events:none;clip-path:inset(0 42% 0 42%);filter:drop-shadow(4px 8px 4px #241f1b38)}.pencil[data-dragging]{cursor:grabbing;z-index:6}.pencil:focus-visible{outline-style:dashed;outline-offset:7px}.uses-strip{padding:32px 5.5vw 45px;text-align:center;border-bottom:1px solid var(--rule)}.uses-strip h2{font-size:clamp(25px,2.8vw,41px);letter-spacing:-.06em}.uses-strip>div{display:grid;grid-template-columns:repeat(3,1fr);margin-top:29px}.uses-strip a{display:block;padding:0 24px;font-family:Kalam,cursive;font-size:clamp(18px,1.95vw,29px);text-decoration-color:var(--red);text-decoration-thickness:2px;line-height:1.45}.uses-strip a+a{border-left:1px solid var(--rule)}.uses-strip a:hover{color:var(--red)}.section-intro .eyebrow,.limits-intro>.eyebrow{margin-bottom:22px}.hand-note{margin-top:32px;max-width:400px;font-family:Kalam,cursive;font-size:29px;line-height:1.3;color:var(--red);transform:rotate(-3deg)}.lead{font-size:22px;line-height:1.5;letter-spacing:-.025em}.question-room{padding-bottom:75px}.question-room-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:60px;margin-bottom:45px}.question-room-heading .eyebrow{margin-bottom:22px}.question-room-heading .hand-note{max-width:305px;margin:0 25px 6px 0}.question-paper{max-width:1040px;margin-inline:auto;padding:24px 40px 32px;background:#faf4e9;border:1px solid #d4c7b2;box-shadow:1px 2px 2px #241f1b0a,3px 12px 30px #241f1b08}.question-paper-bar{display:flex;justify-content:space-between;align-items:center;gap:20px;border-bottom:1px solid #d4c7b2;margin-bottom:35px;padding-bottom:20px}.question-paper-bar>p{font-family:Kalam,cursive;font-size:20px;line-height:1.4}.room-reset{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;padding:6px 0;background:none;border:0;border-bottom:1px solid #b8ac99;font-size:12px}.room-reset:hover{color:var(--red)}.room-reset>span{font-size:19px}.question-stage{--note-width: 192px;--note-height: 152px;position:relative;font-size:20px;line-height:34px;font-weight:400}.flow-typesetting{position:absolute;top:0;right:0;bottom:0;left:0}.flow-line{position:absolute;white-space:nowrap}.flow-fallback>p{margin-bottom:20px}.question-notes{position:absolute;top:0;right:0;bottom:0;left:0;pointer-events:none}.question-note{position:absolute;z-index:1;display:flex;flex-direction:column;justify-content:space-between;width:var(--note-width);height:var(--note-height);padding:22px 19px 15px;background:#e8d8b6;color:var(--ink);border:1px solid #d7c39c;box-shadow:1px 2px 2px #38291c1a,3px 7px 10px #38291c1a;transform:rotate(var(--note-angle));text-align:left;cursor:grab;touch-action:none;-webkit-user-select:none;user-select:none;pointer-events:auto}.question-note:before{content:"";position:absolute;width:60px;height:21px;top:-9px;left:calc(50% - 30px);background:#d6c7a485;border-inline:1px solid #c9b99135;transform:rotate(3deg);pointer-events:none}.question-note-1{background:#f0e6d6;border-color:#d9cdb8}.question-note[data-moving=true]{cursor:grabbing;z-index:3;box-shadow:2px 3px 3px #38291c15,5px 13px 15px #38291c26}.question-note:focus-visible{z-index:4}.note-question{font-family:Kalam,cursive;font-size:29px;line-height:1.15;color:var(--red)}.question-note-1 .note-question{color:#514a40}.note-action{display:flex;justify-content:space-between;align-items:center;gap:5px;font-size:10px;line-height:1.4}.note-action>span{font-size:20px}.question-stage[data-ready=false] .question-notes{position:static;display:flex;justify-content:space-around;gap:24px;padding:15px 0}.question-stage[data-ready=false] .question-note{position:relative;transform:rotate(-3deg)}.room-example{display:grid;grid-template-columns:1fr 1.65fr;gap:45px;border-top:1px solid #c7bba7;margin-top:24px;padding:26px 0 4px}.room-example[hidden]{display:none}.room-example .eyebrow{font-size:10px;margin-bottom:13px}.room-example h3{font-family:Kalam,cursive;font-size:30px;font-weight:400;line-height:1.2;color:var(--red)}.room-example>div>p:not(.eyebrow){font-size:15px;line-height:1.7}.room-example .text-link{margin-top:15px;font-size:12px}.examples-section{background:#e7dfd0;border-block:1px solid #c7bba7}.section-intro{display:grid;grid-template-columns:1.15fr 1fr;gap:12%;align-items:end;margin-bottom:52px}.section-intro>p{font-size:17px;line-height:1.7;max-width:445px;padding-bottom:3px}.example-tabs{display:flex;border-bottom:1px solid #a99b86;margin-bottom:42px}.example-tabs>button{flex:1;display:flex;align-items:baseline;gap:14px;padding:18px 16px 20px;background:none;border:none;border-bottom:3px solid transparent;font-size:16px;font-weight:500;text-align:left;margin-bottom:-1px}.example-tabs>button:first-child{padding-left:0}.example-tabs>button[aria-selected=true]{border-color:var(--red);font-weight:700}.example-tabs>button:hover{color:var(--red)}.tab-number{font-family:Kalam,cursive;font-size:20px;color:var(--red)}.example-heading{display:flex;gap:26px;margin-bottom:42px;align-items:flex-start}.example-number{font-family:Kalam,cursive;font-size:58px;color:var(--red);line-height:1.05}.example-heading h3{font-size:28px;font-weight:700;letter-spacing:-.045em;line-height:1.2;margin-bottom:12px}.example-heading p{font-size:16px;line-height:1.6;max-width:720px}.worked-spread{display:grid;grid-template-columns:1fr 1.1fr;gap:65px;align-items:stretch;padding:0 10px 10px}.source-paper{background:#f9f2e7;box-shadow:0 1px 2px #241f1b25,2px 9px 16px #241f1b12;padding:38px 40px 30px;transform:rotate(-1.3deg);align-self:start}.source-paper .eyebrow{font-size:10px;color:var(--muted)}.source-paper h4{font-size:24px;letter-spacing:-.04em;font-weight:700;line-height:1.2;margin-top:22px;padding-bottom:25px;border-bottom:1px solid #c8bca8}.source-body{font-size:22px;line-height:1.6;letter-spacing:-.03em;margin-top:25px}.source-credit{margin:35px 0 20px;font-size:11px;line-height:1.5;color:var(--muted)}.source-credit strong{display:block;font-weight:500}.source-credit p{margin-top:7px}.source-paper .text-link{font-size:13px}.thinking-margin{display:flex;flex-direction:column}.example-steps{list-style:none;display:flex;flex-wrap:wrap;gap:17px;margin:0 0 30px;padding:0 0 15px;border-bottom:1px solid #b8ac99}.example-steps button{display:flex;align-items:center;gap:6px;padding:3px 0;background:none;border:0;font-size:11px;color:#625a50}.example-steps button>span{display:inline-grid;place-items:center;width:21px;height:21px;border:1px solid #9f927f;border-radius:50%;font-size:10px}.example-steps button[aria-current]{color:var(--ink);font-weight:700}.example-steps button[aria-current]>span{background:var(--red);color:#fff;border-color:var(--red)}.thinking-content{min-height:280px}.thinking-content .eyebrow{font-size:10px;margin-bottom:25px}.first-thought{font-family:Kalam,cursive;font-size:clamp(31px,3vw,44px);line-height:1.5;transform:rotate(-3deg);margin-top:42px;color:#62594d}.discarded-thought{font-family:Kalam,cursive;font-size:22px;line-height:1.4;text-decoration:line-through;text-decoration-thickness:1px;color:#716557;margin-bottom:18px}.checking-question,.kept-note{font-family:Kalam,cursive;font-size:30px;color:var(--red);line-height:1.35;transform:rotate(-2deg)}.kept-note{color:#344d45}.example-reasoning{margin-top:23px;font-size:15px;line-height:1.65}.remaining-question{margin-top:25px;padding-top:20px;border-top:1px solid #b8ac99}.remaining-question>span{font-size:11px;font-weight:700}.remaining-question>p{font-family:Kalam,cursive;font-size:24px;line-height:1.45;margin-top:12px;color:var(--red)}.example-next{margin-top:32px;font-size:14px}.builder-section{padding-bottom:70px}.builder-paper{display:grid;grid-template-columns:1fr 1fr;background:#f8f1e5;box-shadow:0 1px 2px #241f1b20,2px 8px 25px #241f1b08;border:1px solid #cec1ad}.builder-input,.builder-output{padding:38px 40px}.builder-input{border-right:1px solid #c8bca8}.builder-paper label{display:block;font-size:13px;font-weight:700;line-height:1.5;margin-bottom:12px}.builder-paper select{width:100%;border:0;border-bottom:1px solid #897d6b;background:transparent;padding:12px 26px 12px 0;font-size:18px}.privacy-note{font-size:12px;line-height:1.65;color:#5c554b;margin:27px 0 28px}.builder-paper textarea{display:block;width:100%;border:1px solid #b6aa97;background:#fffbf3;padding:15px 16px;line-height:1.6;font-size:15px;resize:vertical;min-height:130px}.builder-paper textarea::placeholder{color:#756a5b}.builder-output textarea{background:transparent;border:0;border-block:1px solid #d5c9b6;padding-inline:0;font-size:13px;line-height:1.65;min-height:240px}.builder-output .action{margin-top:22px;width:100%;font-size:13px}.copy-status{min-height:33px;font-size:12px;line-height:1.5;margin-top:10px;color:#354d43}.builder-follow{font-family:Kalam,cursive;font-size:21px;line-height:1.4;color:var(--red);margin-top:8px;transform:rotate(-2deg)}.limits-section{display:grid;grid-template-columns:1fr 1.05fr;gap:10%;border-top:1px solid #b8ac99;padding-top:80px}.limits-intro>.lead{margin-top:27px;max-width:450px}.reference-link{margin-top:30px;font-size:12px;max-width:100%}.limits-list{list-style:none;padding:0;margin:0}.limits-list>li{display:flex;gap:20px;padding:25px 0;border-bottom:1px solid #b8ac99}.limits-list>li:first-child{padding-top:0}.limits-list>li>span{font-family:Kalam,cursive;font-size:23px;color:var(--red)}.limits-list h3{font-size:20px;letter-spacing:-.035em;line-height:1.3;margin-bottom:11px}.limits-list p{font-size:15px;line-height:1.7}.closing-section{border-block:1px solid #b8ac99;text-align:center;padding:65px 24px 62px}.closing-section h2{font-size:clamp(40px,5.6vw,84px)}.closing-section>p{font-family:Kalam,cursive;font-size:clamp(30px,3.8vw,56px);color:var(--red);margin:8px 0 23px;transform:rotate(-3deg)}.closing-section .text-link{font-size:13px}.site-footer{display:flex;flex-wrap:wrap;justify-content:space-between;gap:30px;padding-block:40px 30px}.site-footer>div>a{display:inline-flex;gap:22px;align-items:center;font-size:15px;font-weight:700;text-decoration:none}.site-footer>div>p{font-size:12px;color:var(--muted);margin-top:10px}.site-footer nav{display:flex;gap:28px;font-size:12px;align-items:flex-start;padding-top:4px}.footer-note{flex-basis:100%;font-size:11px;color:var(--muted);line-height:1.5;border-top:1px solid #c9bda9;padding-top:22px}@media(min-width:1800px){.hero-left{padding-inline:104px 50px}.hero-right{padding-inline:80px 94px}.hero-caption{left:104px}.notebook-tools{left:80px;right:94px}}@media(max-width:1150px)and (min-width:901px){.hero-book{min-height:780px}.hero-left{padding-top:48px;padding-bottom:125px}.hero-right{padding-top:110px;padding-left:4vw;padding-right:4.7vw}.hero-support{font-size:22px}.hero-action{min-width:0;padding:19px 21px;font-size:12px;gap:20px}.hero-boundary{font-size:11px}.note-reply{margin-top:42px;font-size:43px}.note-questions{margin-top:58px;font-size:28px}.hero-pt .note-questions{font-size:21px}.hero-pt .note-reply{font-size:38px}.notebook-tools{bottom:47px;left:4vw;right:4.7vw}.content-width{width:calc(100% - 88px)}.worked-spread{gap:36px;padding-inline:0}.source-paper,.builder-input,.builder-output{padding:32px}}@media(max-width:900px){.content-width{width:calc(100% - 64px)}.section-space{padding-block:75px}.hero-book{min-height:0;width:calc(100% - 24px);background-size:100% 100%}.hero-bar{padding:45px 7% 25px}.brand{font-size:23px}.header-right{gap:23px}.hero-spread{grid-template-columns:1fr 1fr}.hero-left{padding:36px 3.3vw 125px 5.7vw}.hero-left>.eyebrow{font-size:12px}h1{font-size:7.6vw}.hero-pt h1{font-size:6.4vw}.hero-support{font-size:18px;line-height:1.4;margin-top:22px}.hero-action{min-width:0;width:100%;font-size:10px;padding:17px 15px;gap:10px}.hero-action>span{font-size:21px}.hero-boundary{font-size:10px}.hero-caption{font-size:12px;bottom:85px;max-width:240px}.hero-right{padding:85px 4.8vw 95px 4.2vw}.claim-anchor{font-size:4vw;min-height:85px}.note-reply{margin-top:20px;font-size:4.4vw}.note-questions{margin-top:45px;font-size:2.8vw;gap:10px}.hero-pt .note-questions{font-size:2.25vw}.note-source{margin-top:23px;font-size:10px;padding:5px 8px}.notebook-tools{bottom:45px;font-size:9px}.notebook-tools button{font-size:9px}.uses-strip{padding:28px 24px 36px}.uses-strip>div{margin-top:22px}.uses-strip a{padding-inline:18px;font-size:19px}.section-intro{gap:8%}.section-intro>p{font-size:15px}.question-room{padding-bottom:55px}.question-room-heading{gap:30px}.question-room-heading .hand-note{max-width:230px;margin-right:0;font-size:24px}.question-paper{padding-inline:28px}.question-stage{--note-width: 174px;--note-height: 144px;font-size:18px;line-height:30px}.note-question{font-size:27px}.hand-note{font-size:24px}.worked-spread{gap:35px;padding:0}.source-paper{padding:30px}.source-body{font-size:19px}.source-paper h4{font-size:21px}.example-tabs>button{font-size:13px;padding-inline:12px;gap:10px}.example-heading h3{font-size:25px}.example-steps{gap:10px}.example-steps button{font-size:10px}.checking-question,.kept-note{font-size:26px}.builder-input,.builder-output{padding:28px}.builder-paper select{font-size:16px}.limits-section{gap:6%}.limits-intro>.lead{font-size:19px}.limits-list h3{font-size:18px}.limits-list p{font-size:14px}}@media(max-width:650px){html{scroll-padding-top:18px}.content-width{width:calc(100% - 42px)}.section-space{padding-block:57px}h2{font-size:clamp(35px,8.9vw,52px)}.eyebrow{font-size:10px;letter-spacing:.15em}.hero-book{width:calc(100% - 16px);margin-top:8px;background:none}.hero-bar{background:#f3ebdd;padding:26px 24px 25px;align-items:center;gap:10px}.brand{font-size:20px}.hero-pt .brand{font-size:17px}.brand:after{bottom:-7px;border-bottom-width:3px}.header-right{gap:18px}.language-links{font-size:12px;gap:7px}.menu-button{font-size:12px;min-width:30px;min-height:30px;justify-content:center;padding:0}.menu-button>span{display:none}.site-menu{top:77px;right:18px;left:18px;font-size:16px}.hero-spread{display:block}.hero-left{background:url(/assets/notebook.png) -15px center / 200% 100% no-repeat;padding:55px 36px 85px}.hero-left>.eyebrow{font-size:12px;margin-bottom:20px}h1{font-size:clamp(64px,15.8vw,100px);letter-spacing:-.075em;line-height:.93}.hero-en h1{font-size:clamp(48px,14.8vw,94px)}.hero-en h1>span{transform:scaleX(.86);width:116.28%}.hero-en h1>span:last-child{font-size:.88em}.hero-pt h1{font-size:clamp(51px,13.25vw,84px);line-height:1.05}.hero-support{margin-top:25px;font-size:clamp(18px,4.7vw,26px);line-height:1.4}.hero-action{width:fit-content;max-width:100%;min-height:55px;margin-top:24px;padding:17px 20px;font-size:11px;gap:20px}.hero-boundary{margin-top:15px;font-size:10px;line-height:1.65;max-width:355px}.hero-caption{position:relative;left:auto;bottom:auto;margin-top:37px;font-size:12px;width:fit-content;max-width:none}.hero-right{min-height:520px;margin-top:-12px;padding:65px 35px 110px;background:url(/assets/notebook.png) right center / 200% 100% no-repeat}.claim-anchor{font-size:clamp(34px,9.5vw,51px);min-height:85px}.note-reply{font-size:clamp(38px,10.3vw,58px);margin:12px 0 0 8%}.hero-pt .note-reply{font-size:clamp(32px,8.9vw,49px);margin-left:5%}.note-questions{margin-top:45px;font-size:clamp(24px,6.5vw,36px);gap:15px}.hero-pt .note-questions{font-size:clamp(19px,5.2vw,28px)}.hero-pt .note-questions>span{white-space:normal;flex:1}.note-source{margin-top:25px;font-size:11px;padding:6px 10px}.notebook-tools{bottom:37px;left:35px;right:35px;font-size:10px}.notebook-tools>div{gap:20px}.notebook-tools button{font-size:10px}.uses-strip{padding:28px 24px 30px}.uses-strip h2{font-size:28px;line-height:1.12;max-width:290px;margin-inline:auto}.uses-strip>div{display:block;margin-top:18px}.uses-strip a{padding:11px 0;font-size:22px}.uses-strip a+a{border-left:none;border-top:1px solid #ccbfac}.section-intro,.worked-spread,.builder-paper,.limits-section{grid-template-columns:1fr}.section-intro{gap:26px}.section-intro .eyebrow,.limits-intro>.eyebrow{margin-bottom:17px}.hand-note{margin-top:20px;font-size:25px;max-width:315px}.question-room{padding-top:48px;padding-bottom:42px;width:calc(100% - 32px)}.question-room-heading{display:block;margin-bottom:30px;padding-inline:5px}.question-room-heading .eyebrow{margin-bottom:17px}.question-room-heading .hand-note{max-width:270px;margin:21px 0 0;font-size:24px}.question-paper{padding:20px 18px 24px}.question-paper-bar{align-items:flex-start;gap:15px;margin-bottom:28px;padding-bottom:16px}.question-paper-bar>p{max-width:170px;font-size:18px}.room-reset{font-size:10px;gap:6px;padding-block:3px}.question-stage{--note-width: 124px;--note-height: 130px;font-size:16px;line-height:27px}.question-note{padding:19px 14px 12px}.note-question{font-size:22px}.note-action{font-size:9px}.room-example{grid-template-columns:1fr;gap:18px;padding-top:23px}.room-example h3{font-size:28px}.room-example>div>p:not(.eyebrow){font-size:14px}.section-intro{margin-bottom:29px}.section-intro>p{font-size:15px;line-height:1.65}.example-tabs{gap:10px;margin-bottom:30px}.example-tabs>button{display:block;padding:10px 2px 14px;font-size:12px;line-height:1.35}.tab-number{display:block;margin-bottom:5px}.example-heading{gap:17px;margin-bottom:30px}.example-number{font-size:43px}.example-heading h3{font-size:25px}.example-heading p{font-size:14px}.worked-spread{gap:34px;padding-inline:4px}.source-paper{padding:30px 27px}.source-paper h4{font-size:22px;margin-top:16px;padding-bottom:20px}.source-body{font-size:21px;line-height:1.55;margin-top:21px}.source-credit{margin-top:26px}.example-steps{gap:15px;margin-bottom:24px}.example-steps button{font-size:10px}.thinking-content{min-height:215px}.thinking-content .eyebrow{margin-bottom:20px}.first-thought{font-size:31px;margin-top:20px}.checking-question,.kept-note{font-size:28px}.example-reasoning{font-size:15px}.example-next{margin-top:25px;font-size:13px}.builder-section{padding-bottom:50px}.builder-input{border-right:0;border-bottom:1px solid #c8bca8}.builder-input,.builder-output{padding:27px 23px}.builder-paper select,.builder-paper textarea{font-size:16px}.builder-output textarea{font-size:13px;min-height:270px}.builder-output .action{min-height:55px;padding:16px 19px;font-size:12px}.builder-follow{font-size:22px}.limits-section{gap:35px}.limits-intro>.lead{margin-top:20px;font-size:20px}.reference-link{font-size:11px;margin-top:20px}.limits-list>li{padding:25px 0;gap:18px}.limits-list h3{font-size:21px}.limits-list p{font-size:15px}.closing-section{padding-block:46px}.closing-section h2{font-size:39px}.closing-section>p{font-size:32px;margin:10px 0 24px}.site-footer{padding-block:30px 24px;gap:24px}.site-footer nav{gap:25px;flex-wrap:wrap}.footer-note{font-size:10px}}@media(max-width:360px){.hero-left{padding-inline:28px}.hero-bar{padding-inline:20px}h1{font-size:15.6vw}.hero-pt h1{font-size:13vw}.hero-right{padding-inline:27px}.notebook-tools{left:27px;right:27px}.brand{font-size:18px}.hero-pt .brand{font-size:15px}.header-right{gap:12px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}