.relaunch{--sc-canvas:#f5eddf;--sc-surface:#fffaf0;--sc-ink:#1c1915;--sc-ink-soft:#655d52;--sc-accent:#e8942c;--sc-accent-ink:#1c1915;--sc-font-display:var(--font-sans),"Avenir Next",system-ui,sans-serif;--sc-font-text:var(--font-serif),"Iowan Old Style",Georgia,serif;--sc-shadow-color:31 23% 20%;--sc-edge:inset 0 1px 0 rgba(255,255,255,0.72);min-height:100vh;background:var(--sc-canvas);color:var(--sc-ink);font-family:var(--sc-font-text);overflow:clip}.relaunch :is(h1,h2,h3,p,blockquote,figure){margin:0}.relaunch :is(a,button,select){font-family:var(--sc-font-display)}.relaunch a{text-decoration:none}.relaunch button{border:0;cursor:pointer}.relaunch-skip{position:fixed;left:1rem;top:-4rem;z-index:100;background:var(--sc-ink);color:var(--sc-surface);padding:.7rem 1rem}.relaunch-skip:focus{top:1rem}.folio-bar{position:fixed;inset:0 0 auto;z-index:70;height:72px;display:grid;grid-template-columns:minmax(180px,1fr) auto minmax(180px,1fr);align-items:center;gap:2rem;padding-inline:clamp(1.25rem,4vw,4.5rem);border-bottom:1px solid color-mix(in oklab,var(--sc-ink) 16%,transparent);background:color-mix(in oklab,var(--sc-canvas) 86%,transparent);backdrop-filter:blur(14px)}.folio-brand{display:inline-flex;align-items:center;gap:.75rem;width:max-content;font-weight:650;letter-spacing:-.03em}.folio-brand .t-mark{width:34px;height:34px;color:var(--sc-ink)}.folio-bar nav{display:flex;align-items:center;gap:2rem;font-size:.78rem;color:var(--sc-ink-soft)}.folio-actions a,.folio-bar nav a{transition:color .15s var(--sc-ease-out),background-color .15s var(--sc-ease-out),transform .15s var(--sc-ease-out)}.folio-bar nav a:hover{color:var(--sc-ink)}.folio-actions{justify-self:end;display:flex;align-items:center;gap:.75rem}.folio-try{display:inline-flex;align-items:center;gap:.5rem;min-height:40px;padding:.6rem .95rem;color:#fffaf0;background:#1c1915;font-size:.78rem;font-weight:600}.folio-try:hover{background:#e8942c;color:#1c1915}.folio-try:active{transform:translateY(1px)}.language-select{display:inline-flex;align-items:center;gap:.3rem;font-family:var(--sc-font-display);color:var(--sc-ink-soft)}.language-select select{appearance:none;border:0;background:transparent;color:inherit;font-size:.72rem;cursor:pointer;padding:.35rem .2rem}.chapter-folio,.editorial-kicker,.fold-stage__folio{font-family:var(--sc-font-display);font-size:.7rem;font-weight:600;letter-spacing:.12em;text-transform:uppercase}.title-page{position:relative;min-height:100svh;padding-top:72px;background:linear-gradient(90deg,transparent 49.96%,rgba(43,35,27,.08) 50%,transparent 50.04%),var(--sc-canvas)}.title-page__grid{min-height:calc(100svh - 72px);display:grid;grid-template-columns:minmax(0,1.05fr) minmax(320px,.95fr);grid-template-rows:1fr auto;gap:3rem 5vw;align-items:center;padding-block:clamp(5rem,10vh,8rem) 2rem}.title-page__copy{position:relative;z-index:3;max-width:780px}.editorial-kicker{color:#8a5c24;margin-bottom:2rem!important}.title-page__title{font-family:var(--sc-font-display);font-size:clamp(4.4rem,7.5vw,8.8rem);line-height:.9;letter-spacing:-.065em;font-weight:560;text-wrap:balance}.title-page__title--long{font-size:clamp(3.5rem,5.4vw,6.4rem);line-height:.94}.title-page__title em,.title-page__title span{display:block}.title-page__title em{color:#a85e12;font-family:var(--sc-font-text);font-weight:500;letter-spacing:-.055em}.title-page__body{max-width:51ch;margin-top:2.25rem!important;color:var(--sc-ink-soft);font-size:clamp(1.15rem,1rem + .45vw,1.45rem);line-height:1.5;text-wrap:pretty}.title-page__actions{display:flex;flex-wrap:wrap;gap:.75rem;margin-top:2rem}.action{display:inline-flex;align-items:center;justify-content:space-between;gap:1.2rem;min-height:52px;padding:.8rem 1.1rem;font-size:.86rem;font-weight:650;transition:transform .15s var(--sc-ease-out),background-color .15s var(--sc-ease-out),color .15s var(--sc-ease-out),border-color .15s var(--sc-ease-out)}.action:active{transform:translateY(1px)}.action--primary{background:#1c1915;color:#fffaf0}.action--primary:hover{background:#e8942c;color:#1c1915}.action--secondary{color:var(--sc-ink);border:1px solid rgba(28,25,21,.28)}.action--secondary:hover{border-color:#1c1915}.title-page__object{position:relative;align-self:stretch;min-height:520px;display:grid;place-items:center;perspective:1200px}.t-mark{display:inline-block;width:1em;aspect-ratio:1;flex:none;background-color:currentColor;-webkit-mask:url(/brand/tesseract-lines.png) center/contain no-repeat;mask:url(/brand/tesseract-lines.png) center/contain no-repeat}.hero-plane{position:relative;z-index:3;display:grid;place-items:center}.hero-mark{width:min(32vw,430px);height:auto;filter:drop-shadow(0 34px 30px rgba(70,46,22,.22))}.orbit{position:absolute;border:1px solid rgba(139,92,36,.25);border-radius:50%}.orbit--one{width:92%;aspect-ratio:1.7;transform:rotate(18deg)}.orbit--two{width:72%;aspect-ratio:.9;transform:rotate(-31deg)}.math-fragment{position:absolute;z-index:4;font-family:var(--sc-font-text);color:#a85e12;line-height:1}.math-fragment--a{top:19%;right:8%;font-size:5rem;transform:rotate(8deg)}.math-fragment--b{bottom:16%;left:5%;font-size:2.3rem;transform:rotate(-12deg)}.math-fragment--c{top:40%;left:-2%;font-size:3rem;opacity:.64}.title-page__note{grid-column:1/-1;padding-top:1.25rem;border-top:1px solid rgba(28,25,21,.18);color:var(--sc-ink-soft);font-family:var(--sc-font-display);font-size:.72rem;letter-spacing:.04em}.capture-chapter{position:relative;background:#f1e7d7;border-top:1px solid rgba(28,25,21,.16);border-bottom:1px solid rgba(28,25,21,.16)}.chapter-grid{display:grid;grid-template-columns:.28fr .85fr 1.4fr;gap:4vw;align-items:start}.chapter-folio{display:flex;flex-direction:column;gap:.55rem;color:#7a6f61}.chapter-folio span,.fold-stage__folio span{font-family:var(--sc-font-text);font-size:2.6rem;line-height:1;color:currentColor}.chapter-copy{padding-top:5rem}.chapter-copy h2,.close-grid h2,.proof-copy h2,.surface-intro h2{font-family:var(--sc-font-display);font-size:clamp(2.7rem,4.5vw,5.8rem);line-height:.96;letter-spacing:-.055em;font-weight:560;text-wrap:balance}.chapter-copy p,.close-grid>p,.proof-copy>p,.surface-intro>p{color:var(--sc-ink-soft);font-size:clamp(1.05rem,1rem + .3vw,1.32rem);line-height:1.55;text-wrap:pretty}.corner{position:absolute;width:32px;height:32px;border-color:#e8942c;border-style:solid}.corner--tl{top:2rem;left:2rem;border-width:2px 0 0 2px}.corner--tr{top:2rem;right:2rem;border-width:2px 2px 0 0}.corner--bl{bottom:2rem;left:2rem;border-width:0 0 2px 2px}.corner--br{bottom:2rem;right:2rem;border-width:0 2px 2px 0}@keyframes scan-line{0%{transform:translateY(0)}to{transform:translateY(390px)}}.fold-act{--sc-ink:#fff7e8;--sc-ink-soft:#b9ad9b;color:var(--sc-ink)}.fold-stage{background:#15130f;isolation:isolate}.fold-stage:before{content:"";position:absolute;inset:0;z-index:-2;background:radial-gradient(circle at 70% 50%,rgba(232,148,44,.11),transparent 42%)}.fold-stage__folio{top:7rem;display:flex;flex-direction:column;gap:.5rem;color:#9f8f7b}.fold-stage__copy,.fold-stage__folio{position:absolute;left:var(--sc-gutter)}.fold-stage__copy{z-index:10;top:30%;width:min(31rem,37vw)}.fold-stage__copy h2{font-family:var(--sc-font-display);font-size:clamp(2.8rem,4.3vw,5.8rem);line-height:.94;letter-spacing:-.055em;font-weight:550}.fold-stage__copy p{margin-top:1.6rem!important;max-width:38ch;color:var(--sc-ink-soft);font-size:1.18rem;line-height:1.55}.fold-world{position:absolute;inset:0 0 0 45%}.fold-paper{position:absolute;z-index:3;width:min(36vw,520px);aspect-ratio:.76;left:18%;top:14%;display:grid;place-items:center;background:#fff9ed;color:#342a20;box-shadow:0 22px 80px rgba(0,0,0,.35);transform:perspective(1000px) rotateY(calc(var(--sc-p, 0) * 72deg)) rotate(calc(var(--sc-p, 0) * -11deg)) scale(calc(1 - var(--sc-p, 0) * .18));opacity:clamp(0,calc(1.45 - var(--sc-p, 0) * 2.1),1);transform-origin:center}.fold-paper:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(117,85,48,.1) 1px,transparent 0);background-size:100% 2rem}.fold-paper span{position:relative;font-size:clamp(1.4rem,2.4vw,2.6rem);transform:rotate(-2deg)}.fold-geometry{position:absolute;z-index:2;inset:17% 12% 12% 16%;display:grid;place-items:center;opacity:min(clamp(0,calc((var(--sc-p, 0) - .16) * 7),1),clamp(.13,calc(1 - (var(--sc-p, 0) - .5) * 3.6),1));transform:scale(calc(.7 + var(--sc-p, 0) * .42)) rotate(calc((var(--sc-p, 0) - .2) * 32deg))}.fold-geometry .t-mark{width:min(36vw,520px);color:#e8942c;filter:drop-shadow(0 20px 28px rgba(0,0,0,.34))}.fold-atmosphere{position:absolute;inset:10% 0;z-index:1;background:radial-gradient(circle,rgba(232,148,44,.12),transparent 66%);opacity:clamp(0,calc((var(--sc-p, 0) - .22) * 4),.9);transform:scale(calc(.8 + var(--sc-p, 0) * .5))}.app-screen{display:block;width:100%;height:auto;filter:drop-shadow(0 30px 40px rgba(72,50,27,.28))}.capture-phone{justify-self:center;width:min(27vw,360px);transform:rotate(2deg)}.fold-explainer{position:absolute;z-index:5;left:45%;right:0;top:10%;bottom:5%;flex-direction:column;gap:1.1rem;color:#f3e9d8;opacity:clamp(0,calc((var(--sc-p, 0) - .48) * 7),1);transform:translate3d(0,calc((1 - var(--sc-p, 0)) * 70px),0) scale(calc(.92 + var(--sc-p, 0) * .08))}.fold-explainer,.phone-trio{display:flex;align-items:center}.phone-trio{gap:clamp(.8rem,1.6vw,1.8rem)}.phone-trio .app-screen{width:min(17vw,250px)}.phone-trio .app-screen:nth-child(2){transform:translateY(-5%)}.fold-explainer>p{font-size:1.05rem;text-align:center;flex:none}.product-graph{width:100%;height:100%;color:#272018;overflow:visible}.graph-grid{opacity:.11}.graph-axes{opacity:.5}.graph-curve{fill:none;stroke:#e28b23;stroke-width:5;stroke-linecap:round;stroke-dasharray:1;stroke-dashoffset:var(--draw,0)}.graph-points{color:#29231d}.graph-labels{font-family:var(--sc-font-display);font-size:14px}.surface-act{color:#1c1915}.surface-stage{background:#f5eddf;padding-top:72px}.surface-rail{height:calc(100svh - 72px);display:flex;align-items:center;gap:clamp(2rem,4vw,5rem);width:max-content;padding-inline:var(--sc-gutter);will-change:transform}.surface-intro{width:min(52vw,670px);flex:none}.surface-intro h2{margin-top:4rem!important}.surface-intro>p{margin-top:1.5rem!important;max-width:40ch}.surface-item{flex:none;display:grid;align-items:center;gap:2rem}.surface-item--web{width:min(76vw,1160px);grid-template-columns:230px 1fr}.surface-item--phone{width:min(78vw,1150px);grid-template-columns:auto minmax(220px,.5fr)}.surface-label span{font-family:var(--sc-font-display);font-size:.75rem;font-weight:700;letter-spacing:.11em;text-transform:uppercase}.surface-label p{margin-top:.8rem!important;color:#6d6255;line-height:1.45}.surface-label a{display:inline-flex;align-items:center;gap:.45rem;margin-top:1.2rem;font-size:.77rem;font-weight:650;border-bottom:1px solid}.surface-coda{width:28vw;flex:none;display:flex;align-items:center;gap:1.2rem;padding-right:var(--sc-gutter);color:#6d6255}.surface-coda .t-mark{width:54px;color:#1c1915;flex:none}.surface-coda p{max-width:24ch}.product-graph--compact{max-height:320px}.proof-chapter{--sc-ink:#211b15;--sc-ink-soft:#5c3b1c;color:var(--sc-ink);background:#e8a13b}.proof-grid{display:grid;grid-template-columns:.25fr .95fr 1.05fr;gap:4vw;align-items:center}.proof-copy h2{max-width:9ch}.proof-copy>p{max-width:43ch;margin-top:1.6rem!important}.proof-facts{display:flex;flex-direction:column;gap:.4rem;margin-top:2rem;padding-top:1.3rem;border-top:1px solid rgba(33,27,21,.26);font-family:var(--sc-font-display);font-size:.72rem;font-weight:620;letter-spacing:.04em}.review-clipping{position:relative;padding:clamp(2rem,4vw,4rem);background:#fff8ea;color:#211b15;box-shadow:0 24px 70px rgba(82,47,11,.24);transform:rotate(1.4deg);transform-style:preserve-3d}.review-clipping:after{content:"";position:absolute;inset:14px;border:1px solid rgba(33,27,21,.13);pointer-events:none}.review-clipping__rating{position:relative;z-index:1;display:grid;grid-template-columns:auto 1fr;gap:.2rem 1rem;align-items:center;font-family:var(--sc-font-display)}.review-clipping__rating strong{grid-row:1/3;font-size:clamp(3.4rem,6vw,7rem);line-height:.9;letter-spacing:-.06em}.review-clipping__rating span{color:#d47c14;letter-spacing:.14em}.review-clipping__rating small{color:#746555}.review-clipping blockquote{position:relative;z-index:1;margin-top:3.5rem!important;font-size:clamp(1.45rem,2.2vw,2.5rem);line-height:1.24}.review-clipping figcaption{position:relative;z-index:1;margin-top:1.4rem;font-family:var(--sc-font-display);font-size:.68rem;color:#76695b}.close-chapter{--sc-ink:#fff7e8;--sc-ink-soft:#b9ad9b;color:var(--sc-ink);background:#15130f;min-height:100svh}.close-chapter,.close-grid{display:grid;align-items:end}.close-grid{grid-template-columns:minmax(70px,.2fr) minmax(0,1.25fr) minmax(260px,.55fr);gap:2rem 4vw}.close-mark{width:70px;color:#e8942c;align-self:start}.close-grid h2{max-width:12ch}.close-grid>p{max-width:33ch;align-self:end}.close-actions{grid-column:2/-1;display:grid;grid-template-columns:1fr 1fr;gap:1px;margin-top:2rem;background:rgba(255,247,232,.2);border:1px solid rgba(255,247,232,.2)}.action--light,.action--outline-light{min-height:108px;padding:1.25rem 1.5rem}.action--light{background:#e8942c;color:#1c1915}.action--light:hover{background:#f2aa4d}.action--outline-light{background:#15130f;color:#fff7e8}.action--outline-light:hover{background:#242019}.close-actions .action span{display:flex;flex-direction:column;gap:.15rem}.close-actions small{color:currentColor;opacity:.62;font-size:.62rem;text-transform:uppercase;letter-spacing:.1em}.close-grid footer{grid-column:1/-1;display:grid;grid-template-columns:1fr 2fr auto auto;gap:1rem 2rem;padding-top:1.35rem;margin-top:3rem;border-top:1px solid rgba(255,247,232,.2);font-family:var(--sc-font-display);font-size:.66rem;color:#aa9e8d}@font-face{font-family:Fraunces App;font-weight:100 900;font-display:swap;src:url(/fonts/fraunces-latin-ext-wght-normal.woff2) format("woff2-variations");unicode-range:u+0100-02ba,u+02bd-02c5,u+02c7-02cc,u+02ce-02d7,u+02dd-02ff,u+0304,u+0308,u+0329,u+1d00-1dbf,u+1e00-1e9f,u+1ef2-1eff,u+2020,u+20a0-20ab,u+20ad-20c0,u+2113,u+2c60-2c7f,u+a720-a7ff}@font-face{font-family:Fraunces App;font-weight:100 900;font-display:swap;src:url(/fonts/fraunces-latin-wght-normal.woff2) format("woff2-variations");unicode-range:u+00??,u+0131,u+0152-0153,u+02bb-02bc,u+02c6,u+02da,u+02dc,u+0304,u+0308,u+0329,u+2000-206f,u+20ac,u+2122,u+2191,u+2193,u+2212,u+2215,u+feff,u+fffd}@font-face{font-family:Geist App;font-weight:100 900;font-display:swap;src:url(/fonts/geist-latin-ext-wght-normal.woff2) format("woff2-variations");unicode-range:u+0100-02ba,u+02bd-02c5,u+02c7-02cc,u+02ce-02d7,u+02dd-02ff,u+0304,u+0308,u+0329,u+1d00-1dbf,u+1e00-1e9f,u+1ef2-1eff,u+2020,u+20a0-20ab,u+20ad-20c0,u+2113,u+2c60-2c7f,u+a720-a7ff}@font-face{font-family:Geist App;font-weight:100 900;font-display:swap;src:url(/fonts/geist-latin-wght-normal.woff2) format("woff2-variations");unicode-range:u+00??,u+0131,u+0152-0153,u+02bb-02bc,u+02c6,u+02da,u+02dc,u+0304,u+0308,u+0329,u+2000-206f,u+20ac,u+2122,u+2191,u+2193,u+2212,u+2215,u+feff,u+fffd}.demo-phone,.webapp{--app-bg:#fdfaf0;--app-card:#fffdf7;--app-ink:#3a2418;--app-muted:#7a6152;--app-border:#e7dfd0;--app-accent-bg:#f4ead6;--app-amber:#cf8536;--app-amber-bright:#e3973f;font-family:Geist App,system-ui,sans-serif;color:var(--app-ink)}.app-logo{width:22px;height:22px;flex:none}.webapp{container-type:inline-size;background:var(--app-bg);border:1px solid rgba(58,36,24,.16);border-radius:14px;box-shadow:0 30px 80px rgba(72,50,27,.2);overflow:hidden;font-size:12px}.webapp__chrome{height:38px;display:flex;align-items:center;gap:.75rem;padding-inline:.9rem;color:#5d4a3e;border-bottom:1px solid var(--app-border)}.webapp__chrome .is-dim{opacity:.35}.webapp__chrome span{margin-left:.4rem;color:#a3968a;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.webapp__chrome b{color:var(--app-ink);font-weight:500}.webapp__body{height:min(64vh,620px);display:grid;grid-template-columns:218px 1fr}.webapp__side{display:flex;flex-direction:column;gap:.15rem;padding:.8rem .6rem;background:#fcfaf3;border-right:1px solid var(--app-border);min-height:0;overflow:hidden}.webapp__brand{display:flex;align-items:center;gap:.45rem;padding:.1rem .35rem .9rem}.webapp__brand strong{font-family:Fraunces App,Georgia,serif;font-size:15px;font-weight:500;letter-spacing:-.01em}.webapp__brand em{display:inline-flex;align-items:center;gap:.15rem;padding:.12rem .4rem;border-radius:999px;background:#fbe6c8;color:#c4771f;font-style:normal;font-size:9.5px;font-weight:600}.webapp__brand svg:last-child{margin-left:auto;color:var(--app-muted)}.webapp__new{display:flex;align-items:center;gap:.55rem;padding:.55rem .7rem;margin-bottom:.35rem;border:1px solid #ecdcc3;border-radius:9px;background:#fbf3e4;font-weight:500;box-shadow:0 1px 2px rgba(120,84,40,.08)}.webapp__new svg{color:var(--app-amber)}.webapp__link{display:flex;align-items:center;gap:.55rem;padding:.45rem .7rem;color:#6b5345}.webapp__link i{margin-left:auto;padding:.08rem .35rem;border-radius:999px;background:#fbe6c8;color:#c4771f;font-style:normal;font-size:8px;font-weight:700;letter-spacing:.04em}.webapp__side ul{list-style:none;margin:.6rem 0 0!important;padding:.7rem 0 0;border-top:1px solid var(--app-border);display:flex;flex-direction:column;gap:.1rem}.webapp__side li{padding:.55rem .7rem;border:1px solid transparent;border-radius:9px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:#4b3528}.webapp__side li.is-active{background:var(--app-accent-bg);border-color:#e6d3b3;box-shadow:inset 2px 0 0 var(--app-amber-bright)}.webapp__main{position:relative;display:grid;grid-template-rows:1fr auto;min-width:0;min-height:0;background:radial-gradient(120% 80% at 80% 0,#fffdf6,var(--app-bg))}.webapp__share{position:absolute;top:.8rem;right:1.2rem;display:flex;align-items:center;gap:.35rem;font-weight:500;z-index:2}.webapp__scroll{min-height:0;overflow:hidden;padding:2.6rem clamp(1rem,7cqw,5.5rem) 0;display:flex;flex-direction:column;gap:1.3rem}.webapp__user{align-self:flex-end;max-width:86%;margin:0!important;padding:.75rem .95rem;border:1px solid #f0e2bd;border-radius:12px;background:#fcf3d6;line-height:1.5;box-shadow:0 1px 3px rgba(120,84,40,.08)}.webapp__answer{display:flex;gap:.7rem;min-height:0}.webapp__answer>div{min-width:0;flex:1}.webapp__answer h3{font-family:Fraunces App,Georgia,serif;font-size:clamp(17px,2.4cqw,22px);font-weight:600;line-height:1.15;letter-spacing:-.015em}.webapp__answer p{margin:.5rem 0 .9rem!important;font-size:12.5px;line-height:1.55;color:#46301f}.webapp__video{position:relative;aspect-ratio:16/9;border-radius:12px;overflow:hidden;background:linear-gradient(180deg,#d9cfb9,#fbf1d6 16%,#fcf3da 78%,#b9ad96);--draw:0}.webapp__video .product-graph{position:absolute;inset:9% 12% 13%;width:76%;height:78%;max-height:none}.webapp__video .graph-curve{animation:app-draw 3.2s var(--sc-ease-out,ease-out) both}.webapp__video .graph-labels,.webapp__video .graph-points{animation:app-fade .6s 2.6s both}.webapp__video-top{position:absolute;top:.6rem;right:.8rem;display:flex;align-items:center;gap:.8rem;color:#fffaf0;font-size:10px;font-weight:600}.webapp__video button{position:absolute;inset:50% auto auto 50%;width:52px;height:52px;display:grid;place-items:center;border-radius:50%;background:rgba(58,36,24,.18);color:#fffaf0;transform:translate(-50%,-50%);transition:background-color .15s ease,transform .15s ease;animation:app-fade .5s 3s both}.webapp__video button:hover{background:rgba(58,36,24,.4)}.webapp__video button:active{transform:translate(-50%,-50%) scale(.96)}.webapp__video-bar{position:absolute;inset:auto .7rem .55rem;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:.4rem .5rem;color:#fffaf0;font-size:10px}.webapp__video-bar i{grid-column:1/-1;height:3px;border-radius:3px;background:rgba(255,250,240,.4)}.webapp__video-bar b{display:block;width:44%;height:100%;border-radius:3px;background:var(--app-amber-bright);animation:app-seek 3.2s linear both}.webapp__composer{margin:0 clamp(1rem,7cqw,5.5rem) 1rem;padding:.8rem .9rem .65rem;border:1px solid var(--app-border);border-radius:16px;background:var(--app-card);box-shadow:0 -14px 24px 6px var(--app-bg),0 4px 16px rgba(120,84,40,.1);position:relative;z-index:2}.webapp__composer>span{color:#a3968a}.webapp__composer>div{display:flex;align-items:center;gap:1rem;margin-top:1rem;color:#6b5345}.webapp__composer em,.webapp__composer u{display:inline-flex;align-items:center;gap:.3rem;font-style:normal;text-decoration:none}.webapp__composer u{margin-left:auto}.webapp__composer b{width:30px;height:30px;display:grid;place-items:center;border-radius:50%;background:var(--app-amber-bright);color:#fffaf0;box-shadow:0 3px 8px rgba(207,133,54,.45)}@container (max-width: 620px){.webapp__body{grid-template-columns:1fr}.webapp__composer em,.webapp__side{display:none}}@keyframes app-draw{0%{stroke-dashoffset:1}to{stroke-dashoffset:0}}@keyframes app-fade{0%{opacity:0}to{opacity:1}}@keyframes app-seek{0%{width:0}to{width:44%}}.demo-phone{--d:clamp(0,calc((var(--sc-p, 1) - 0.5) * 2.3),1);container-type:size;flex:1 1 0;min-height:0;aspect-ratio:9/18.6;max-width:100%;filter:drop-shadow(0 40px 60px rgba(0,0,0,.6))}.demo-phone__screen{position:relative;height:100%;display:flex;flex-direction:column;gap:3cqw;padding:4cqw 4.5cqw 5cqw;border:2.6cqw solid #14110e;outline:.4cqw solid #5a4f45;border-radius:15cqw;background:var(--app-bg);overflow:hidden;font-size:3.5cqw}.demo-phone__status{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;padding-inline:5cqw;font-size:3.7cqw;font-weight:600}.demo-phone__status i{width:27cqw;height:8cqw;border-radius:999px;background:#0d0b09}.demo-phone__battery{justify-self:end;width:6.5cqw;height:3.2cqw;border-radius:1cqw;background:var(--app-ink)}.demo-phone__nav{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:2cqw;padding-top:1cqw}.demo-phone__nav strong{font-size:4.1cqw;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.demo-phone__nav svg{width:5cqw;height:5cqw}.demo-phone__card{flex:1 1 0;min-height:0;display:flex;flex-direction:column;gap:2.5cqw;padding:3cqw;border-radius:4cqw;background:#fff;box-shadow:0 1px 2px rgba(120,84,40,.1),0 6px 20px rgba(120,84,40,.08);overflow:hidden}.demo-phone__video{position:relative;flex:1 1 0;min-height:0;border-radius:3cqw;background:#fcf3da;overflow:hidden;--draw:clamp(0,calc(1 - (var(--d) - 0.18) * 2.4),1)}.demo-phone__video .product-graph{position:absolute;inset:5%;width:90%;height:90%;max-height:none}.demo-phone__video .graph-labels,.demo-phone__video .graph-points{opacity:clamp(0,calc((var(--d) - .55) * 8),1)}.demo-phone__video .graph-labels{font-size:20px}.demo-phone__generating{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2.5cqw;background:#fcf3da;color:var(--app-muted);opacity:clamp(0,calc(1 - (var(--d) - .1) * 9),1)}.demo-phone__generating .t-mark{width:16cqw;color:var(--app-amber);animation:demo-spin 7s linear infinite}.demo-phone__generating small{font-size:3cqw;letter-spacing:.04em}.demo-phone__generating i{width:38cqw;height:1cqw;border-radius:1cqw;background:rgba(207,133,54,.2);overflow:hidden}.demo-phone__generating b{display:block;height:100%;width:calc(var(--d) * 900%);max-width:100%;background:var(--app-amber)}.demo-phone__progress{height:.9cqw;border-radius:1cqw;background:#efe6d4;flex:none}.demo-phone__progress i{display:block;height:100%;width:calc(var(--d) * 100%);border-radius:inherit;background:var(--app-amber-bright)}.demo-phone__card ol{flex:none;list-style:none;margin:0!important;padding:1cqw .5cqw 1.5cqw;display:flex;flex-direction:column;gap:2.2cqw;min-height:0}.demo-phone__card li{display:flex;align-items:flex-start;gap:2.2cqw;font-size:3.7cqw;line-height:1.35;opacity:clamp(.12,calc((var(--d) - .3) * 7),1);transform:translateY(calc((1 - clamp(0, calc((var(--d) - .3) * 7), 1)) * 2cqw))}.demo-phone__card li:nth-child(2){opacity:clamp(.12,calc((var(--d) - .5) * 7),1);transform:translateY(calc((1 - clamp(0, calc((var(--d) - .5) * 7), 1)) * 2cqw))}.demo-phone__card li:nth-child(3){opacity:clamp(.12,calc((var(--d) - .7) * 7),1);transform:translateY(calc((1 - clamp(0, calc((var(--d) - .7) * 7), 1)) * 2cqw))}.demo-phone__card li span{flex:none;width:4.6cqw;height:4.6cqw;display:grid;place-items:center;border-radius:50%;background:var(--app-accent-bg);color:#a8651c;font-size:2.7cqw;font-weight:700}.demo-phone__question{flex:none;padding:2.5cqw 3cqw;border-radius:4cqw;background:#fff;box-shadow:0 1px 2px rgba(120,84,40,.1)}.demo-phone__question small{font-size:2.4cqw;font-weight:600;letter-spacing:.1em;color:#a3968a}.demo-phone__question p{margin:1cqw 0 0!important;font-family:Fraunces App,Georgia,serif;font-size:4cqw;color:var(--app-ink)}.demo-phone__saved{flex:none;display:flex;align-items:center;justify-content:center;gap:1.2cqw;font-size:2.9cqw;color:#4f7a3a;opacity:clamp(0,calc((var(--d) - .86) * 10),1)}.demo-phone__saved svg{width:3.4cqw;height:3.4cqw}.demo-phone__cta{flex:none;padding:3.2cqw;border-radius:3.4cqw;text-align:center;font-size:3.5cqw;font-weight:600;color:#fffaf0;background:linear-gradient(180deg,#e9a24c,#cf8536);box-shadow:0 1.2cqw 0 #a96a27}@keyframes demo-spin{to{transform:rotate(1turn)}}@media (max-width:980px){.folio-bar{grid-template-columns:1fr auto}.folio-bar nav{display:none}.title-page__grid{grid-template-columns:1fr .72fr}.chapter-grid,.proof-grid{grid-template-columns:.2fr 1fr}.chapter-copy{padding-top:0}.capture-phone,.review-clipping{grid-column:2}.fold-stage__copy{width:36vw}.fold-world{inset-inline-start:36%}.surface-item--web{width:92vw;grid-template-columns:170px 1fr}.surface-item--phone{width:auto}.phone-trio .app-screen{width:24vw}}@media (max-width:700px){.folio-bar{height:62px;padding-inline:1rem;gap:.7rem}.folio-brand span{display:none}.folio-brand .t-mark{width:30px}.folio-actions{gap:.4rem}.folio-try{min-height:38px;padding-inline:.7rem}.language-select svg{display:none}.title-page{padding-top:62px}.title-page__grid{min-height:calc(100svh - 62px);grid-template-columns:1fr;grid-template-rows:auto 260px auto;gap:1.5rem;padding-top:4.5rem}.title-page__title{font-size:clamp(3.2rem,15vw,5rem)}.title-page__title--long{font-size:clamp(2.6rem,11.5vw,4rem)}.title-page__body{font-size:1.08rem}.title-page__object{grid-row:2;min-height:260px}.hero-mark{width:210px}.math-fragment--a{font-size:3.6rem;right:4%}.title-page__actions{flex-direction:column;align-items:stretch}.title-page__note{grid-row:3}.chapter-grid,.proof-grid{grid-template-columns:1fr}.chapter-folio,.fold-stage__folio{flex-direction:row;align-items:baseline}.chapter-folio span,.fold-stage__folio span{font-size:1.6rem}.capture-phone,.chapter-copy,.review-clipping{grid-column:1}.fold-stage__folio{top:5rem;left:1.25rem}.fold-stage__copy{top:16%;left:1.25rem;right:1.25rem;width:auto}.fold-stage__copy h2{font-size:2.65rem;max-width:10ch}.fold-stage__copy p{max-width:32ch;font-size:.98rem}.fold-world{inset:39% 0 0}.fold-paper{width:55vw;left:23%;top:8%}.fold-geometry{inset:4% 10% 8%}.fold-geometry .t-mark{width:60vw}.fold-explainer{top:40%;left:1rem;right:1rem;bottom:1rem}.capture-phone{width:min(68vw,300px);margin-top:2rem}.phone-trio{gap:.9rem}.phone-trio .app-screen{width:44vw;max-width:230px}.surface-stage{padding-top:62px}.surface-rail{height:calc(100svh - 62px);gap:2rem}.surface-intro{width:84vw}.webapp__body{height:58vh}.surface-item--web{width:94vw;display:flex;flex-direction:column;align-items:stretch}.surface-item--phone{width:auto;display:flex;flex-direction:column;align-items:flex-start;justify-content:center;gap:1.4rem;padding-right:6vw}.surface-item--phone .surface-label{width:84vw}.surface-label{order:2}.surface-coda{display:none}.proof-copy h2{max-width:11ch}.review-clipping{transform:none}.close-chapter{min-height:auto}.close-grid{grid-template-columns:1fr}.close-mark{width:54px}.close-actions,.close-grid footer,.close-grid>p{grid-column:1}.close-actions{grid-template-columns:1fr}.close-grid footer{grid-template-columns:1fr auto}.close-grid footer span:nth-child(2){grid-column:1/-1;grid-row:2}}@media (max-width:390px){.folio-try svg{display:none}.title-page__title{font-size:3.15rem}.title-page__title--long{font-size:2.65rem}}@media (prefers-reduced-motion:reduce){.fold-paper{opacity:.18;transform:rotate(-8deg) scale(.82)}.fold-geometry{opacity:.36;transform:none}.fold-explainer{opacity:1;transform:none}.demo-phone{--d:1}.demo-phone__generating .t-mark,.webapp__video .graph-curve,.webapp__video .graph-labels,.webapp__video .graph-points,.webapp__video button,.webapp__video-bar b{animation:none}.graph-curve{stroke-dashoffset:0}.surface-rail{height:auto;align-items:stretch}}