:root{--paper:#f5f3ee;--paper2:#faf9f5;--ink:#171717;--mute:#74736e;--blue:#4667e8;--coral:#e87966;--line:#d6d3cb;--mono:"SFMono-Regular",Consolas,"Liberation Mono",monospace}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;overflow-x:hidden}
.skip-link{position:absolute;left:12px;top:-60px;background:var(--ink);color:white;padding:10px;z-index:10}
.skip-link:focus{top:12px}
a{color:inherit;text-decoration:none}
a:focus-visible,button:focus-visible{outline:2px solid var(--blue);outline-offset:4px}
.site-header{border-bottom:1px solid var(--line);padding:18px 3vw}
.site-header nav,footer{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:28px}
.brand{display:grid;gap:2px;line-height:1}
.brand strong{letter-spacing:-.045em;font-size:18px;font-weight:700}
.brand span,.eyebrow,.index,.frame-top,figcaption,.layer-controls,small,dt{font-family:var(--mono);font-size:10px;letter-spacing:.08em}
.brand span{color:var(--mute)}
.nav-index{display:flex;gap:24px;font-size:13px}
.nav-index a:hover{color:var(--blue)}
.nav-acquire{justify-self:end;font-size:13px;border-bottom:1px solid var(--ink);padding-bottom:3px}
.nav-acquire b,.acquire-link b,.final-cta b{color:var(--blue);font-size:18px;font-weight:400}
.hero{padding:58px 3vw 0;display:grid;grid-template-columns:minmax(290px,.72fr) minmax(520px,1.28fr);gap:5vw;min-height:800px;position:relative;background:radial-gradient(circle at 83% 17%,#ece9f5 0,transparent 32%)}
.hero-copy{align-self:center;padding-bottom:78px}
.eyebrow,.index{margin:0 0 22px;color:var(--mute)}
.eyebrow i{font-style:normal;color:var(--blue);padding:0 5px}
h1,h2{font-family:Arial,"Helvetica Neue",Helvetica,sans-serif;letter-spacing:-.067em;line-height:.92;margin:0;font-weight:600}
h1{font-size:clamp(48px,5.2vw,84px)}
h2{font-size:clamp(42px,5.2vw,78px)}
.domain-name{font-size:20px;margin:28px 0 10px;letter-spacing:-.04em}
.hero-lede{max-width:360px;color:#51504c;line-height:1.55;margin:0}
.hero-actions{display:flex;gap:22px;align-items:center;margin-top:31px;font-size:13px}
.acquire-link{background:var(--ink);color:var(--paper2);padding:13px 16px;transition:background .25s}
.acquire-link:hover{background:var(--blue)}
.text-link{border-bottom:1px solid var(--ink);padding-bottom:3px}
.scene-frame{margin:0;border:1px solid var(--ink);background:#eceae4;padding:13px;align-self:start;position:relative;animation:frame-in .8s ease both}
.frame-top,figcaption{display:flex;justify-content:space-between;color:#575651}
.scene-viewport{height:550px;border:1px solid #aaa8a1;margin:11px 0;overflow:hidden;position:relative;background:#d8d8d3}
.crop{position:absolute;width:18px;height:18px;border-color:var(--blue);z-index:4}
.tl{top:-1px;left:-1px;border-left:2px solid;border-top:2px solid}
.tr{top:-1px;right:-1px;border-right:2px solid;border-top:2px solid}
.bl{bottom:-1px;left:-1px;border-left:2px solid;border-bottom:2px solid}
.br{bottom:-1px;right:-1px;border-right:2px solid;border-bottom:2px solid}
.room{position:absolute;inset:0;overflow:hidden;perspective:600px}
.back-wall{position:absolute;top:0;left:13%;height:55%;width:74%;background:linear-gradient(110deg,#e9e6dd 0 53%,#d5d5d0 53%);border-bottom:1px solid #767572}
.floor{position:absolute;top:54%;left:-12%;width:124%;height:70%;background:repeating-linear-gradient(90deg,transparent 0 59px,#858584 60px 61px),repeating-linear-gradient(0deg,transparent 0 52px,#858584 53px 54px);transform:perspective(500px) rotateX(55deg);transform-origin:top;opacity:.44}
.guide{position:absolute;top:0;height:100%;border-left:1px dashed #555}
.g1{left:25%}
.g2{left:52%}
.g3{left:77%}
.path{position:absolute;width:44%;height:32%;left:28%;top:29%;border-left:2px dotted var(--blue);border-bottom:2px dotted var(--blue);transform:skewX(-32deg)}
.door{position:absolute;width:18%;height:37%;left:66%;top:17%;border:3px solid #696966;background:#b8b8b5;box-shadow:inset 0 0 0 18px #d6d5d0}
.door span{position:absolute;bottom:-23px;right:-2px;font:9px var(--mono);white-space:nowrap}
.table{position:absolute;width:36%;height:18%;left:25%;top:48%;border:3px solid #414140;background:#d4d1c7;transform:skewY(-13deg)}
.table i{display:block;width:82%;height:170%;margin:12% auto;border-left:2px solid #414140;border-right:2px solid #414140}
.box{position:absolute;left:34%;top:38%;width:13%;height:15%;background:#e87966;opacity:.88;border:2px solid #20201f;transform:skewY(-13deg)}
.box i{display:block;height:40%;border-bottom:2px solid #20201f}
.cylinder{position:absolute;left:57%;top:49%;width:9%;height:17%;border:2px solid #20201f;border-radius:50%;background:linear-gradient(90deg,#dddad0,#918f88,#dedbd1);transform:skewY(-13deg)}
.zone{position:absolute;left:10%;top:62%;width:28%;height:24%;border:1px dashed var(--blue);background:#4667e81a;transform:skewY(-13deg)}
.relation{position:absolute;height:1px;background:var(--blue);transform-origin:left;opacity:0}
.r1{left:41%;top:46%;width:22%;transform:rotate(17deg)}
.r2{left:59%;top:57%;width:20%;transform:rotate(-42deg)}
.crosshair{position:absolute;left:41%;top:45%;width:42px;height:42px;border:1px solid var(--blue);animation:cross-move 7s ease-in-out infinite}
.crosshair:before,.crosshair:after{content:"";position:absolute;background:var(--blue)}
.crosshair:before{height:1px;width:58px;left:-9px;top:20px}
.crosshair:after{width:1px;height:58px;left:20px;top:-9px}
.crosshair i{display:block;width:5px;height:5px;background:var(--coral);margin:18px}
.annotation{position:absolute;font:10px/1.35 var(--mono);letter-spacing:.04em;color:#1e1e1e;background:#f5f3eebd;padding:4px 5px;border-left:2px solid var(--blue)}
.annotation b{font-weight:400}
.a1{left:18%;top:44%}
.a2{left:32%;top:28%;border-color:var(--coral)}
.a3{left:56%;top:66%}
.a4{left:5%;top:78%}
.a5{right:3%;top:5%;border:0;background:none;color:var(--mute)}
.layer-controls{position:absolute;bottom:0;right:3vw;display:flex;border:1px solid var(--line);border-bottom:0;background:var(--paper);z-index:2}
.layer-controls span,.layer-controls button{padding:12px 13px;border:0;background:transparent;color:var(--mute);font:10px var(--mono);letter-spacing:.08em}
.layer-controls button{cursor:pointer;border-left:1px solid var(--line)}
.layer-controls button.active{background:var(--blue);color:#fff}
.mode-depth .back-wall{background:linear-gradient(110deg,#f5f3ee,#9a9ea8)}
.mode-depth .floor{opacity:.8;background:repeating-linear-gradient(90deg,transparent 0 59px,#4667e8 60px 61px),repeating-linear-gradient(0deg,transparent 0 52px,#4667e8 53px 54px)}
.mode-depth .table,.mode-depth .box,.mode-depth .cylinder{filter:grayscale(1);opacity:.48}
.mode-depth .zone{background:#4667e84a}
.mode-objects .table,.mode-objects .box,.mode-objects .cylinder,.mode-objects .door{outline:3px solid var(--blue);outline-offset:6px}
.mode-objects .annotation{opacity:1}
.mode-relations .relation{opacity:1}
.mode-relations .r1:after,.mode-relations .r2:after{content:"REL";position:absolute;right:-13px;top:-15px;color:var(--blue);font:9px var(--mono)}
.mode-relations .annotation:not(.a5){opacity:.3}
.mode-relations .table,.mode-relations .box,.mode-relations .cylinder{opacity:.38}
.decomposition{padding:130px 3vw 92px;background:var(--paper2)}
.section-intro{display:grid;grid-template-columns:1fr 1.4fr 1fr;align-items:end;margin-bottom:70px}
.equation{justify-self:end;font-size:27px;margin:0;letter-spacing:-.06em}
.equation b{color:var(--blue)}
.decomp-list{border-top:1px solid var(--ink)}
.decomp-list article{display:grid;grid-template-columns:10% 38% 1fr auto;align-items:center;border-bottom:1px solid var(--ink);padding:20px 0;transition:padding .25s;background:linear-gradient(90deg,transparent 0 0,var(--blue) 0 0) left/0 100% no-repeat}
.decomp-list article:hover{padding-left:18px;background-size:8px 100%}
.decomp-list span{font:12px var(--mono);color:var(--blue)}
.decomp-list h3{margin:0;letter-spacing:-.05em;font-size:clamp(29px,4vw,58px);font-weight:500}
.decomp-list p{margin:0;color:var(--mute)}
.decomp-list em{font:11px var(--mono);font-style:normal}
.pixels-section{padding:140px 8vw;display:grid;grid-template-columns:5fr 7fr;gap:8vw;background:#eceae4}
.pixels-copy p:last-child{max-width:330px;line-height:1.55;color:#595853}
.world-sequence{display:flex;align-items:center;justify-content:space-between;gap:12px}
.pixel-stage{width:100px;height:150px;border:1px solid #7d7c76;position:relative;padding:8px;font:9px var(--mono)}
.pixel-stage i{position:absolute;left:9px;right:9px;bottom:9px;top:31px;background-image:linear-gradient(#4b4b4a 1px,transparent 1px),linear-gradient(90deg,#4b4b4a 1px,transparent 1px);background-size:8px 8px}
.sparse i{background-size:21px 21px;background-position:center}
.sequence-arrow{font-size:22px;color:var(--blue);text-align:center}
.sequence-arrow small{display:block;color:var(--mute);font-size:8px}
.world-stage{height:150px;flex:1;min-width:145px;border:1px solid #7d7c76;position:relative;padding:8px;font:9px var(--mono)}
.world-stage>b{position:absolute;bottom:9px;right:8px;font:15px/1 Arial}
.world-floor{position:absolute;left:14px;right:35px;bottom:29px;height:43px;border-left:1px solid;border-bottom:1px solid;transform:skewY(-24deg)}
.world-block{position:absolute;width:29px;height:32px;left:42px;bottom:41px;background:var(--coral);border:1px solid}
.world-door{position:absolute;width:25px;height:54px;right:35px;bottom:29px;border:2px solid var(--blue)}
.meaning-section{padding:130px 8vw}
.meaning-head{display:grid;grid-template-columns:7fr 5fr;gap:10vw}
.meaning-head .index,.meaning-head h2{grid-column:1}
.meaning-head>p:last-child{grid-column:2;grid-row:2;align-self:end;line-height:1.55;color:#51504c}
.semantic-sheet{margin-top:70px;border-top:1px solid var(--ink);padding-top:12px}
.statement{display:flex;align-items:center;gap:12px;padding:15px 0;border-bottom:1px solid var(--line);font-size:clamp(22px,3.2vw,45px);letter-spacing:-.05em}
.statement b{font-weight:500}
.statement i{font:12px var(--mono);font-style:normal;color:var(--blue);border-bottom:1px solid var(--blue);padding:0 15px}
.relation-vocabulary{margin-top:80px;display:flex;gap:7px;flex-wrap:wrap}
.relation-vocabulary span{padding:6px 10px;border:1px solid var(--ink);font:11px var(--mono)}
.affordance{background:#171717;color:#f3f1ea;padding:120px 3vw 70px}
.affordance .index{color:#b6b5ae}
.affordance h2{max-width:900px}
.questions{margin-top:92px}
.questions p{font-size:clamp(45px,8.8vw,140px);line-height:.82;letter-spacing:-.09em;margin:0;padding:19px 0;border-top:1px solid #555;position:relative}
.questions p:last-child{border-bottom:1px solid #555}
.questions small{position:absolute;right:0;top:12px;color:#aaa}
.questions b{font-weight:500;color:#5975f4}
.affordance-note{margin:62px 0 0 45%;max-width:320px;line-height:1.5;color:#b6b5ae}
.layers-section{padding:140px 12vw;display:grid;grid-template-columns:1fr 1fr;gap:9vw;background:linear-gradient(90deg,#f5f3ee,#f9f7f1)}
.tracing-stack{position:relative;height:390px}
.tracing-stack article{position:absolute;width:85%;height:255px;border:1px solid #777;background:#f5f3eecc;padding:18px;display:flex;flex-direction:column;gap:30px;transition:transform .25s}
.tracing-stack article:hover{transform:translateX(10px)}
.tracing-stack article:nth-child(1){top:0;left:0}
.tracing-stack article:nth-child(2){top:35px;left:34px;background:#dfe5ffb8}
.tracing-stack article:nth-child(3){top:70px;left:68px;background:#f3ddd5b8}
.tracing-stack article:nth-child(4){top:105px;left:102px;background:#e6e3ddc9}
.tracing-stack span{font:10px var(--mono);color:var(--blue)}
.tracing-stack b{font-size:26px;letter-spacing:-.05em}
.tracing-stack i{font:12px var(--mono);font-style:normal;color:var(--mute)}
.applications{padding:130px 3vw;background:#eeece6}
.applications-head{display:flex;justify-content:space-between;align-items:end;margin-bottom:65px}
.applications ol{list-style:none;padding:0;margin:0;border-top:1px solid var(--ink)}
.applications li{display:grid;grid-template-columns:10% 1fr 1fr;align-items:center;border-bottom:1px solid var(--ink);padding:16px 0;position:relative}
.applications li:before{content:"";width:7px;height:7px;background:var(--blue);position:absolute;left:-13px;opacity:0;transition:opacity .2s}
.applications li:hover:before{opacity:1}
.applications b,.applications span{font:11px var(--mono);font-weight:400}
.applications b{color:var(--blue)}
.applications strong{font-size:clamp(22px,3vw,43px);letter-spacing:-.05em;font-weight:500}
.applications span{color:var(--mute)}
.physical-ai{padding:140px 8vw;display:grid;grid-template-columns:8fr 4fr;gap:7vw;background:var(--blue);color:white}
.physical-ai .index{grid-column:1/-1;color:#d7dfff}
.physical-ai .language,.physical-answer p{font-size:clamp(38px,4.5vw,68px);font-weight:600;letter-spacing:-.075em;line-height:.9;margin:58px 0 0}
.language i{font-style:normal;color:#d7dfff}
.physical-answer{align-self:end}
.physical-answer p{margin:0}
.physical-answer p b{color:#171717}
.physical-answer span{display:block;margin-top:32px;line-height:1.5}
.world-model{padding:140px 8vw;display:grid;grid-template-columns:5fr 7fr;gap:8vw}
.model-copy p:last-child{color:var(--mute);line-height:1.55;max-width:320px}
.time-study{display:grid;grid-template-columns:1fr auto 1fr;gap:30px;align-items:center}
.time-study>div{height:260px;border:1px solid var(--ink);position:relative;padding:12px;font:10px var(--mono);overflow:hidden}
.time-study>b{font-size:25px;color:var(--blue)}
.study-table{position:absolute;width:44%;height:30%;bottom:25%;left:25%;border:2px solid;transform:skewY(-12deg)}
.study-a,.study-b,.study-robot{position:absolute;font-style:normal;padding:4px;background:#f5f3ee;border:1px solid var(--blue);font-size:9px}
.study-a{left:30%;top:38%}
.study-b{right:16%;bottom:22%;border-color:var(--coral)}
.study-robot{left:16%;bottom:18%;border-color:#171717}
.next .study-a{left:52%;top:25%}
.next .study-robot{left:31%;bottom:31%}
.name-section{padding:120px 8vw;background:var(--paper2)}
.name-section>h2{max-width:760px}
.name-columns{display:grid;grid-template-columns:1fr 1fr;gap:0;margin-top:85px;border-top:1px solid var(--ink)}
.name-columns article{padding:22px 4vw 45px 0;border-bottom:1px solid var(--ink)}
.name-columns article+article{padding-left:4vw;border-left:1px solid var(--ink)}
.name-columns span{font-size:clamp(38px,6vw,82px);letter-spacing:-.08em}
.name-columns p{max-width:260px;line-height:1.5;color:var(--mute)}
.name-equation{margin:70px 0 0;font-size:clamp(28px,5vw,70px);letter-spacing:-.075em}
.name-equation b{color:var(--blue)}
.name-equation strong{font-weight:500}
.direct-name{margin:20px 0 0;color:var(--mute)}
.final-frame{padding:5vw;background:#161616;color:#f3f1ea}
.final-copy{min-height:820px;border:1px solid #666;padding:26px;display:flex;flex-direction:column;justify-content:space-between;background:radial-gradient(circle at 60% 40%,#202233,transparent 42%)}
.final-copy>p{font-size:clamp(24px,3vw,46px);letter-spacing:-.06em;line-height:.92;margin:0}
.final-rectangle{border:1px solid #5975f4;padding:20px 5%;margin:5vw 8%}
.final-rectangle span{font:10px var(--mono);color:#9aabff}
.final-rectangle h2{font-size:clamp(42px,8.5vw,135px);white-space:nowrap;margin:14px 0 32px}
.final-rectangle p{color:#cbc9c3;max-width:430px;line-height:1.5}
.final-bottom{display:flex;justify-content:space-between;align-items:end;gap:40px}
.final-bottom dl{display:grid;grid-template-columns:repeat(2,auto);gap:12px 55px;margin:0}
.final-bottom dt{color:#aaa}
.final-bottom dd{font:11px var(--mono);margin:4px 0 0}
.final-bottom>div:last-child{display:grid;gap:13px}
.final-cta{font-size:18px;border-bottom:1px solid #f3f1ea;padding-bottom:6px}
.final-bottom small{color:#aaa}
footer{padding:25px 3vw;border-top:1px solid var(--line);grid-template-columns:1fr auto auto;align-items:start}
footer strong{font-size:14px;letter-spacing:-.04em}
footer span,footer small{font:10px/1.5 var(--mono);color:var(--mute)}
footer a{font-size:13px;border-bottom:1px solid var(--ink);padding-bottom:2px}
footer small{grid-column:1/-1}
@keyframes frame-in{from{opacity:0;transform:translateY(16px)}
to{opacity:1;transform:none}
}
@keyframes cross-move{0%,100%{transform:translate(0,0)}
50%{transform:translate(145px,65px)}
}
@media(max-width:850px){.site-header{padding:15px 20px}
.site-header nav{grid-template-columns:1fr auto}
.nav-index{display:none}
.hero{padding:45px 20px 0;display:block;min-height:auto}
.hero-copy{padding-bottom:50px}
.scene-frame{margin:0 -6px}
.scene-viewport{height:390px}
.layer-controls{position:static;margin-top:16px;display:grid;grid-template-columns:repeat(2,1fr);width:100%}
.layer-controls span{grid-column:1/-1}
.layer-controls button{border-top:1px solid var(--line)}
.section-intro,.pixels-section,.meaning-head,.layers-section,.physical-ai,.world-model{display:block}
.decomposition,.pixels-section,.meaning-section,.layers-section,.applications,.physical-ai,.world-model,.name-section{padding:90px 20px}
.section-intro{margin-bottom:45px}
.equation{margin-top:20px}
.decomp-list article{grid-template-columns:17% 1fr auto;gap:5px}
.decomp-list p{display:none}
.world-sequence{margin-top:55px;gap:5px}
.pixel-stage{width:68px;height:130px}
.pixel-stage i{background-size:7px 7px}
.sparse i{background-size:18px 18px}
.world-stage{height:130px;min-width:105px}
.sequence-arrow{font-size:17px}
.meaning-head>p:last-child{margin-top:25px}
.semantic-sheet{margin-top:45px}
.statement{display:grid;grid-template-columns:1fr;gap:5px;padding:16px 0}
.statement i{width:max-content;padding:0}
.affordance{padding:90px 20px 55px}
.questions{margin-top:55px}
.questions p{font-size:clamp(42px,13vw,70px);padding:20px 0}
.affordance-note{margin:48px 0 0}
.tracing-stack{margin-top:60px;height:330px}
.tracing-stack article{height:195px;width:75%}
.tracing-stack article:nth-child(2){left:20px}
.tracing-stack article:nth-child(3){left:40px}
.tracing-stack article:nth-child(4){left:60px}
.applications-head{display:block;margin-bottom:42px}
.applications li{grid-template-columns:14% 1fr;gap:4px;padding:17px 0}
.applications li span{grid-column:2}
.physical-ai>div{margin-top:48px}
.physical-ai .language{margin-top:35px}
.time-study{margin-top:50px;gap:10px;grid-template-columns:1fr}
.time-study>b{text-align:center}
.time-study>div{height:210px}
.name-columns{margin-top:50px;display:block}
.name-columns article+article{border-left:0;padding-left:0}
.final-frame{padding:20px}
.final-copy{min-height:680px;padding:15px}
.final-rectangle{margin:30px 0;padding:15px}
.final-rectangle h2{font-size:clamp(36px,11vw,60px);white-space:normal;overflow-wrap:anywhere}
.final-bottom{display:block}
.final-bottom dl{margin-bottom:30px;gap:12px}
.final-cta{font-size:16px}
footer{padding:24px 20px;grid-template-columns:1fr auto;gap:18px}
footer span{display:none}
footer small{grid-column:1/-1}
.a5,.a4{display:none}
.door{left:70%}
.table{left:16%;width:44%}
.box{left:27%}
.cylinder{left:54%}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}
*,*:before,*:after{animation:none!important;transition:none!important}
}