:root{--ink:#222831;--muted:#69707e;--muted-light:#828a98;--paper:#fcfcfd;--surface:#fff;--surface-0:#fff;--surface-1:#f8f9fb;--surface-2:#f4f6f8;--line:#c2c8d1;--line-soft:#d9dee6;--hairline:#e6e9ee;--accent:#1f2630;--particle-coral:#ff6b7a;--particle-sky:#43bfff;--particle-yellow:#ffd45c;--particle-resolved:#080808;--shadow:#0e121924;--shadow-card:0 1px 2px #0e121912, 0 0 0 1px #0e121905;--sans:"SF Pro Text", "SF Pro Display", "Helvetica Neue", Helvetica, Arial, ui-sans-serif, sans-serif;--mono:"SFMono-Regular", Consolas, "Liberation Mono", monospace;--layout-gutter:clamp(24px, 6vw, 96px);--container-article:clamp(1120px, 88vw, 1660px);--container-wide:clamp(1240px, 92vw, 1780px);--container-prose:700px;--radius-card:14px;--radius-control:10px;--dur-fast:.12s;--dur-base:.18s;--dur-slow:.28s;--ease-standard:cubic-bezier(.32, .72, 0, 1);--ease-emphasized:cubic-bezier(.22, 1, .36, 1);--type-article-title:clamp(2.5rem, 1.1vw + 2.2rem, 3rem);--type-chapter-title:clamp(1.875rem, .55vw + 1.72rem, 2.125rem);--type-section-title:clamp(1.625rem, .5vw + 1.5rem, 1.875rem);--type-subsection:clamp(1.25rem, .25vw + 1.19rem, 1.375rem);--type-deck:1.125rem;--type-concept-label:.9375rem;--type-body:1.0625rem;--type-supporting:.9375rem;--type-caption:.8125rem;--measure-prose:66ch;--measure-narrow:46ch;--space-section:clamp(4rem, 8vw, 7rem);font-family:var(--sans);color:var(--ink);background:var(--paper);font-synthesis:none;font-optical-sizing:auto;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:calc(var(--bar-height,48px) + 1.25rem)}[id]{scroll-margin-top:2rem}body{background:var(--paper);min-width:320px;margin:0}b,strong{font-weight:500}button,input,textarea,select{font:inherit}::selection{color:#fff;background:#050505}@font-face{font-display:block;font-family:KaTeX_AMS;font-style:normal;font-weight:400;src:url(/text-diffusion-explainer/assets/KaTeX_AMS-Regular-BQhdFMY1.woff2)format("woff2"),url(/text-diffusion-explainer/assets/KaTeX_AMS-Regular-DMm9YOAa.woff)format("woff"),url(/text-diffusion-explainer/assets/KaTeX_AMS-Regular-DRggAlZN.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:700;src:url(/text-diffusion-explainer/assets/KaTeX_Caligraphic-Bold-Dq_IR9rO.woff2)format("woff2"),url(/text-diffusion-explainer/assets/KaTeX_Caligraphic-Bold-BEiXGLvX.woff)format("woff"),url(/text-diffusion-explainer/assets/KaTeX_Caligraphic-Bold-ATXxdsX0.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:400;src:url(/text-diffusion-explainer/assets/KaTeX_Caligraphic-Regular-Di6jR-x-.woff2)format("woff2"),url(/text-diffusion-explainer/assets/KaTeX_Caligraphic-Regular-CTRA-rTL.woff)format("woff"),url(/text-diffusion-explainer/assets/KaTeX_Caligraphic-Regular-wX97UBjC.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:700;src:url(/text-diffusion-explainer/assets/KaTeX_Fraktur-Bold-CL6g_b3V.woff2)format("woff2"),url(/text-diffusion-explainer/assets/KaTeX_Fraktur-Bold-BsDP51OF.woff)format("woff"),url(/text-diffusion-explainer/assets/KaTeX_Fraktur-Bold-BdnERNNW.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:400;src:url(/text-diffusion-explainer/assets/KaTeX_Fraktur-Regular-CTYiF6lA.woff2)format("woff2"),url(/text-diffusion-explainer/assets/KaTeX_Fraktur-Regular-Dxdc4cR9.woff)format("woff"),url(/text-diffusion-explainer/assets/KaTeX_Fraktur-Regular-CB_wures.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:700;src:url(/text-diffusion-explainer/assets/KaTeX_Main-Bold-Cx986IdX.woff2)format("woff2"),url(/text-diffusion-explainer/assets/KaTeX_Main-Bold-Jm3AIy58.woff)format("woff"),url(/text-diffusion-explainer/assets/KaTeX_Main-Bold-waoOVXN0.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:700;src:url(/text-diffusion-explainer/assets/KaTeX_Main-BoldItalic-DxDJ3AOS.woff2)format("woff2"),url(/text-diffusion-explainer/assets/KaTeX_Main-BoldItalic-SpSLRI95.woff)format("woff"),url(/text-diffusion-explainer/assets/KaTeX_Main-BoldItalic-DzxPMmG6.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:400;src:url(/text-diffusion-explainer/assets/KaTeX_Main-Italic-NWA7e6Wa.woff2)format("woff2"),url(/text-diffusion-explainer/assets/KaTeX_Main-Italic-BMLOBm91.woff)format("woff"),url(/text-diffusion-explainer/assets/KaTeX_Main-Italic-3WenGoN9.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:400;src:url(/text-diffusion-explainer/assets/KaTeX_Main-Regular-B22Nviop.woff2)format("woff2"),url(/text-diffusion-explainer/assets/KaTeX_Main-Regular-Dr94JaBh.woff)format("woff"),url(/text-diffusion-explainer/assets/KaTeX_Main-Regular-ypZvNtVU.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:700;src:url(/text-diffusion-explainer/assets/KaTeX_Math-BoldItalic-CZnvNsCZ.woff2)format("woff2"),url(/text-diffusion-explainer/assets/KaTeX_Math-BoldItalic-iY-2wyZ7.woff)format("woff"),url(/text-diffusion-explainer/assets/KaTeX_Math-BoldItalic-B3XSjfu4.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:400;src:url(/text-diffusion-explainer/assets/KaTeX_Math-Italic-t53AETM-.woff2)format("woff2"),url(/text-diffusion-explainer/assets/KaTeX_Math-Italic-DA0__PXp.woff)format("woff"),url(/text-diffusion-explainer/assets/KaTeX_Math-Italic-flOr_0UB.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:700;src:url(/text-diffusion-explainer/assets/KaTeX_SansSerif-Bold-D1sUS0GD.woff2)format("woff2"),url(/text-diffusion-explainer/assets/KaTeX_SansSerif-Bold-DbIhKOiC.woff)format("woff"),url(/text-diffusion-explainer/assets/KaTeX_SansSerif-Bold-CFMepnvq.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:italic;font-weight:400;src:url(/text-diffusion-explainer/assets/KaTeX_SansSerif-Italic-C3H0VqGB.woff2)format("woff2"),url(/text-diffusion-explainer/assets/KaTeX_SansSerif-Italic-DN2j7dab.woff)format("woff"),url(/text-diffusion-explainer/assets/KaTeX_SansSerif-Italic-YYjJ1zSn.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:400;src:url(/text-diffusion-explainer/assets/KaTeX_SansSerif-Regular-DDBCnlJ7.woff2)format("woff2"),url(/text-diffusion-explainer/assets/KaTeX_SansSerif-Regular-CS6fqUqJ.woff)format("woff"),url(/text-diffusion-explainer/assets/KaTeX_SansSerif-Regular-BNo7hRIc.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Script;font-style:normal;font-weight:400;src:url(/text-diffusion-explainer/assets/KaTeX_Script-Regular-D3wIWfF6.woff2)format("woff2"),url(/text-diffusion-explainer/assets/KaTeX_Script-Regular-D5yQViql.woff)format("woff"),url(/text-diffusion-explainer/assets/KaTeX_Script-Regular-C5JkGWo-.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size1;font-style:normal;font-weight:400;src:url(/text-diffusion-explainer/assets/KaTeX_Size1-Regular-mCD8mA8B.woff2)format("woff2"),url(/text-diffusion-explainer/assets/KaTeX_Size1-Regular-C195tn64.woff)format("woff"),url(/text-diffusion-explainer/assets/KaTeX_Size1-Regular-Dbsnue_I.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size2;font-style:normal;font-weight:400;src:url(/text-diffusion-explainer/assets/KaTeX_Size2-Regular-Dy4dx90m.woff2)format("woff2"),url(/text-diffusion-explainer/assets/KaTeX_Size2-Regular-oD1tc_U0.woff)format("woff"),url(/text-diffusion-explainer/assets/KaTeX_Size2-Regular-B7gKUWhC.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size3;font-style:normal;font-weight:400;src:url(data:font/woff2;base64,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)format("woff2"),url(/text-diffusion-explainer/assets/KaTeX_Size3-Regular-CTq5MqoE.woff)format("woff"),url(/text-diffusion-explainer/assets/KaTeX_Size3-Regular-DgpXs0kz.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size4;font-style:normal;font-weight:400;src:url(/text-diffusion-explainer/assets/KaTeX_Size4-Regular-Dl5lxZxV.woff2)format("woff2"),url(/text-diffusion-explainer/assets/KaTeX_Size4-Regular-BF-4gkZK.woff)format("woff"),url(/text-diffusion-explainer/assets/KaTeX_Size4-Regular-DWFBv043.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Typewriter;font-style:normal;font-weight:400;src:url(/text-diffusion-explainer/assets/KaTeX_Typewriter-Regular-CO6r4hn1.woff2)format("woff2"),url(/text-diffusion-explainer/assets/KaTeX_Typewriter-Regular-C0xS9mPB.woff)format("woff"),url(/text-diffusion-explainer/assets/KaTeX_Typewriter-Regular-D3Ib7_Hf.ttf)format("truetype")}.katex{text-indent:0;text-rendering:auto;font:1.21em/1.2 KaTeX_Main,Times New Roman,serif;position:relative}.katex *{border-color:currentColor;-ms-high-contrast-adjust:none!important}.katex .katex-version:after{content:"0.18.6"}.katex .katex-mathml{clip-path:inset(50%);border:0;width:1px;height:1px;padding:0;position:absolute;overflow:hidden}.katex .katex-html>.katex-newline{display:block}.katex .katex-base{white-space:nowrap;width:min-content;position:relative}.katex .katex-base,.katex .katex-strut{display:inline-block}.katex .textbf{font-weight:700}.katex .textit{font-style:italic}.katex .textrm{font-family:KaTeX_Main}.katex .textsf{font-family:KaTeX_SansSerif}.katex .texttt{font-family:KaTeX_Typewriter}.katex .mathnormal{font-family:KaTeX_Math;font-style:italic}.katex .mathit{font-family:KaTeX_Main;font-style:italic}.katex .mathrm{font-style:normal}.katex .mathbf{font-family:KaTeX_Main;font-weight:700}.katex .boldsymbol{font-family:KaTeX_Math;font-style:italic;font-weight:700}.katex .amsrm,.katex .mathbb,.katex .textbb{font-family:KaTeX_AMS}.katex .mathcal{font-family:KaTeX_Caligraphic}.katex .mathfrak,.katex .textfrak{font-family:KaTeX_Fraktur}.katex .mathboldfrak,.katex .textboldfrak{font-family:KaTeX_Fraktur;font-weight:700}.katex .mathtt{font-family:KaTeX_Typewriter}.katex .mathscr,.katex .textscr{font-family:KaTeX_Script}.katex .mathsf,.katex .textsf{font-family:KaTeX_SansSerif}.katex .mathboldsf,.katex .textboldsf{font-family:KaTeX_SansSerif;font-weight:700}.katex .mathitsf,.katex .mathsfit,.katex .textitsf{font-family:KaTeX_SansSerif;font-style:italic}.katex .mainrm{font-family:KaTeX_Main;font-style:normal}.katex .vlist-t{border-collapse:collapse;table-layout:fixed;display:inline-table}.katex .vlist-r{display:table-row}.katex .vlist{vertical-align:bottom;display:table-cell;position:relative}.katex .vlist>span{height:0;display:block;position:relative}.katex .vlist>span>span{display:inline-block}.katex .vlist>span>.pstrut{width:0;overflow:hidden}.katex .vlist-t2{margin-right:-2px}.katex .vlist-s{vertical-align:bottom;width:2px;min-width:2px;font-size:1px;display:table-cell}.katex .katex-vbox{flex-direction:column;align-items:baseline;display:inline-flex}.katex .katex-thinbox{flex-direction:row;width:0;max-width:0;display:inline-flex}.katex .msupsub{text-align:left}.katex .mfrac>span>span{text-align:center}.katex .mfrac .frac-line{border-bottom-style:solid;width:100%;display:inline-block}.katex .katex-hdashline,.katex .katex-hline,.katex .katex-overline .overline-line,.katex .katex-rule,.katex .katex-underline .underline-line,.katex .mfrac .frac-line{min-height:1px}.katex .mspace{display:inline-block}.katex .katex-smash{line-height:0;display:inline}.katex .clap,.katex .llap,.katex .rlap{width:0;position:relative}.katex .clap>.katex-inner,.katex .llap>.katex-inner,.katex .rlap>.katex-inner{position:absolute}.katex .clap>.katex-fix,.katex .llap>.katex-fix,.katex .rlap>.katex-fix{display:inline-block}.katex .llap>.katex-inner{right:0}.katex .clap>.katex-inner,.katex .rlap>.katex-inner{left:0}.katex .clap>.katex-inner>span{margin-left:-50%;margin-right:50%}.katex .katex-rule{border:0 solid;display:inline-block;position:relative}.katex .katex-hline,.katex .katex-overline .overline-line,.katex .katex-underline .underline-line{border-bottom-style:solid;width:100%;display:inline-block}.katex .katex-hdashline{border-bottom-style:dashed;width:100%;display:inline-block}.katex .sqrt>.katex-root{margin-left:.277778em;margin-right:-.555556em}.katex .fontsize-ensurer.reset-size1.size1,.katex .katex-sizing.reset-size1.size1{font-size:1em}.katex .fontsize-ensurer.reset-size1.size2,.katex .katex-sizing.reset-size1.size2{font-size:1.2em}.katex .fontsize-ensurer.reset-size1.size3,.katex .katex-sizing.reset-size1.size3{font-size:1.4em}.katex .fontsize-ensurer.reset-size1.size4,.katex .katex-sizing.reset-size1.size4{font-size:1.6em}.katex .fontsize-ensurer.reset-size1.size5,.katex .katex-sizing.reset-size1.size5{font-size:1.8em}.katex .fontsize-ensurer.reset-size1.size6,.katex .katex-sizing.reset-size1.size6{font-size:2em}.katex .fontsize-ensurer.reset-size1.size7,.katex .katex-sizing.reset-size1.size7{font-size:2.4em}.katex .fontsize-ensurer.reset-size1.size8,.katex .katex-sizing.reset-size1.size8{font-size:2.88em}.katex .fontsize-ensurer.reset-size1.size9,.katex .katex-sizing.reset-size1.size9{font-size:3.456em}.katex .fontsize-ensurer.reset-size1.size10,.katex .katex-sizing.reset-size1.size10{font-size:4.148em}.katex .fontsize-ensurer.reset-size1.size11,.katex .katex-sizing.reset-size1.size11{font-size:4.976em}.katex .fontsize-ensurer.reset-size2.size1,.katex .katex-sizing.reset-size2.size1{font-size:.833333em}.katex .fontsize-ensurer.reset-size2.size2,.katex .katex-sizing.reset-size2.size2{font-size:1em}.katex .fontsize-ensurer.reset-size2.size3,.katex .katex-sizing.reset-size2.size3{font-size:1.16667em}.katex .fontsize-ensurer.reset-size2.size4,.katex .katex-sizing.reset-size2.size4{font-size:1.33333em}.katex .fontsize-ensurer.reset-size2.size5,.katex .katex-sizing.reset-size2.size5{font-size:1.5em}.katex .fontsize-ensurer.reset-size2.size6,.katex .katex-sizing.reset-size2.size6{font-size:1.66667em}.katex .fontsize-ensurer.reset-size2.size7,.katex .katex-sizing.reset-size2.size7{font-size:2em}.katex .fontsize-ensurer.reset-size2.size8,.katex .katex-sizing.reset-size2.size8{font-size:2.4em}.katex .fontsize-ensurer.reset-size2.size9,.katex .katex-sizing.reset-size2.size9{font-size:2.88em}.katex .fontsize-ensurer.reset-size2.size10,.katex .katex-sizing.reset-size2.size10{font-size:3.45667em}.katex .fontsize-ensurer.reset-size2.size11,.katex .katex-sizing.reset-size2.size11{font-size:4.14667em}.katex .fontsize-ensurer.reset-size3.size1,.katex .katex-sizing.reset-size3.size1{font-size:.714286em}.katex .fontsize-ensurer.reset-size3.size2,.katex .katex-sizing.reset-size3.size2{font-size:.857143em}.katex .fontsize-ensurer.reset-size3.size3,.katex .katex-sizing.reset-size3.size3{font-size:1em}.katex .fontsize-ensurer.reset-size3.size4,.katex .katex-sizing.reset-size3.size4{font-size:1.14286em}.katex .fontsize-ensurer.reset-size3.size5,.katex .katex-sizing.reset-size3.size5{font-size:1.28571em}.katex .fontsize-ensurer.reset-size3.size6,.katex .katex-sizing.reset-size3.size6{font-size:1.42857em}.katex .fontsize-ensurer.reset-size3.size7,.katex .katex-sizing.reset-size3.size7{font-size:1.71429em}.katex .fontsize-ensurer.reset-size3.size8,.katex .katex-sizing.reset-size3.size8{font-size:2.05714em}.katex .fontsize-ensurer.reset-size3.size9,.katex .katex-sizing.reset-size3.size9{font-size:2.46857em}.katex .fontsize-ensurer.reset-size3.size10,.katex .katex-sizing.reset-size3.size10{font-size:2.96286em}.katex .fontsize-ensurer.reset-size3.size11,.katex .katex-sizing.reset-size3.size11{font-size:3.55429em}.katex .fontsize-ensurer.reset-size4.size1,.katex .katex-sizing.reset-size4.size1{font-size:.625em}.katex .fontsize-ensurer.reset-size4.size2,.katex .katex-sizing.reset-size4.size2{font-size:.75em}.katex .fontsize-ensurer.reset-size4.size3,.katex .katex-sizing.reset-size4.size3{font-size:.875em}.katex .fontsize-ensurer.reset-size4.size4,.katex .katex-sizing.reset-size4.size4{font-size:1em}.katex .fontsize-ensurer.reset-size4.size5,.katex .katex-sizing.reset-size4.size5{font-size:1.125em}.katex .fontsize-ensurer.reset-size4.size6,.katex .katex-sizing.reset-size4.size6{font-size:1.25em}.katex .fontsize-ensurer.reset-size4.size7,.katex .katex-sizing.reset-size4.size7{font-size:1.5em}.katex .fontsize-ensurer.reset-size4.size8,.katex .katex-sizing.reset-size4.size8{font-size:1.8em}.katex .fontsize-ensurer.reset-size4.size9,.katex .katex-sizing.reset-size4.size9{font-size:2.16em}.katex .fontsize-ensurer.reset-size4.size10,.katex .katex-sizing.reset-size4.size10{font-size:2.5925em}.katex .fontsize-ensurer.reset-size4.size11,.katex .katex-sizing.reset-size4.size11{font-size:3.11em}.katex .fontsize-ensurer.reset-size5.size1,.katex .katex-sizing.reset-size5.size1{font-size:.555556em}.katex .fontsize-ensurer.reset-size5.size2,.katex .katex-sizing.reset-size5.size2{font-size:.666667em}.katex .fontsize-ensurer.reset-size5.size3,.katex .katex-sizing.reset-size5.size3{font-size:.777778em}.katex .fontsize-ensurer.reset-size5.size4,.katex .katex-sizing.reset-size5.size4{font-size:.888889em}.katex .fontsize-ensurer.reset-size5.size5,.katex .katex-sizing.reset-size5.size5{font-size:1em}.katex .fontsize-ensurer.reset-size5.size6,.katex .katex-sizing.reset-size5.size6{font-size:1.11111em}.katex .fontsize-ensurer.reset-size5.size7,.katex .katex-sizing.reset-size5.size7{font-size:1.33333em}.katex .fontsize-ensurer.reset-size5.size8,.katex .katex-sizing.reset-size5.size8{font-size:1.6em}.katex .fontsize-ensurer.reset-size5.size9,.katex .katex-sizing.reset-size5.size9{font-size:1.92em}.katex .fontsize-ensurer.reset-size5.size10,.katex .katex-sizing.reset-size5.size10{font-size:2.30444em}.katex .fontsize-ensurer.reset-size5.size11,.katex .katex-sizing.reset-size5.size11{font-size:2.76444em}.katex .fontsize-ensurer.reset-size6.size1,.katex .katex-sizing.reset-size6.size1{font-size:.5em}.katex .fontsize-ensurer.reset-size6.size2,.katex .katex-sizing.reset-size6.size2{font-size:.6em}.katex .fontsize-ensurer.reset-size6.size3,.katex .katex-sizing.reset-size6.size3{font-size:.7em}.katex .fontsize-ensurer.reset-size6.size4,.katex .katex-sizing.reset-size6.size4{font-size:.8em}.katex .fontsize-ensurer.reset-size6.size5,.katex .katex-sizing.reset-size6.size5{font-size:.9em}.katex .fontsize-ensurer.reset-size6.size6,.katex .katex-sizing.reset-size6.size6{font-size:1em}.katex .fontsize-ensurer.reset-size6.size7,.katex .katex-sizing.reset-size6.size7{font-size:1.2em}.katex .fontsize-ensurer.reset-size6.size8,.katex .katex-sizing.reset-size6.size8{font-size:1.44em}.katex .fontsize-ensurer.reset-size6.size9,.katex .katex-sizing.reset-size6.size9{font-size:1.728em}.katex .fontsize-ensurer.reset-size6.size10,.katex .katex-sizing.reset-size6.size10{font-size:2.074em}.katex .fontsize-ensurer.reset-size6.size11,.katex .katex-sizing.reset-size6.size11{font-size:2.488em}.katex .fontsize-ensurer.reset-size7.size1,.katex .katex-sizing.reset-size7.size1{font-size:.416667em}.katex .fontsize-ensurer.reset-size7.size2,.katex .katex-sizing.reset-size7.size2{font-size:.5em}.katex .fontsize-ensurer.reset-size7.size3,.katex .katex-sizing.reset-size7.size3{font-size:.583333em}.katex .fontsize-ensurer.reset-size7.size4,.katex .katex-sizing.reset-size7.size4{font-size:.666667em}.katex .fontsize-ensurer.reset-size7.size5,.katex .katex-sizing.reset-size7.size5{font-size:.75em}.katex .fontsize-ensurer.reset-size7.size6,.katex .katex-sizing.reset-size7.size6{font-size:.833333em}.katex .fontsize-ensurer.reset-size7.size7,.katex .katex-sizing.reset-size7.size7{font-size:1em}.katex .fontsize-ensurer.reset-size7.size8,.katex .katex-sizing.reset-size7.size8{font-size:1.2em}.katex .fontsize-ensurer.reset-size7.size9,.katex .katex-sizing.reset-size7.size9{font-size:1.44em}.katex .fontsize-ensurer.reset-size7.size10,.katex .katex-sizing.reset-size7.size10{font-size:1.72833em}.katex .fontsize-ensurer.reset-size7.size11,.katex .katex-sizing.reset-size7.size11{font-size:2.07333em}.katex .fontsize-ensurer.reset-size8.size1,.katex .katex-sizing.reset-size8.size1{font-size:.347222em}.katex .fontsize-ensurer.reset-size8.size2,.katex .katex-sizing.reset-size8.size2{font-size:.416667em}.katex .fontsize-ensurer.reset-size8.size3,.katex .katex-sizing.reset-size8.size3{font-size:.486111em}.katex .fontsize-ensurer.reset-size8.size4,.katex .katex-sizing.reset-size8.size4{font-size:.555556em}.katex .fontsize-ensurer.reset-size8.size5,.katex .katex-sizing.reset-size8.size5{font-size:.625em}.katex .fontsize-ensurer.reset-size8.size6,.katex .katex-sizing.reset-size8.size6{font-size:.694444em}.katex .fontsize-ensurer.reset-size8.size7,.katex .katex-sizing.reset-size8.size7{font-size:.833333em}.katex .fontsize-ensurer.reset-size8.size8,.katex .katex-sizing.reset-size8.size8{font-size:1em}.katex .fontsize-ensurer.reset-size8.size9,.katex .katex-sizing.reset-size8.size9{font-size:1.2em}.katex .fontsize-ensurer.reset-size8.size10,.katex .katex-sizing.reset-size8.size10{font-size:1.44028em}.katex .fontsize-ensurer.reset-size8.size11,.katex .katex-sizing.reset-size8.size11{font-size:1.72778em}.katex .fontsize-ensurer.reset-size9.size1,.katex .katex-sizing.reset-size9.size1{font-size:.289352em}.katex .fontsize-ensurer.reset-size9.size2,.katex .katex-sizing.reset-size9.size2{font-size:.347222em}.katex .fontsize-ensurer.reset-size9.size3,.katex .katex-sizing.reset-size9.size3{font-size:.405093em}.katex .fontsize-ensurer.reset-size9.size4,.katex .katex-sizing.reset-size9.size4{font-size:.462963em}.katex .fontsize-ensurer.reset-size9.size5,.katex .katex-sizing.reset-size9.size5{font-size:.520833em}.katex .fontsize-ensurer.reset-size9.size6,.katex .katex-sizing.reset-size9.size6{font-size:.578704em}.katex .fontsize-ensurer.reset-size9.size7,.katex .katex-sizing.reset-size9.size7{font-size:.694444em}.katex .fontsize-ensurer.reset-size9.size8,.katex .katex-sizing.reset-size9.size8{font-size:.833333em}.katex .fontsize-ensurer.reset-size9.size9,.katex .katex-sizing.reset-size9.size9{font-size:1em}.katex .fontsize-ensurer.reset-size9.size10,.katex .katex-sizing.reset-size9.size10{font-size:1.20023em}.katex .fontsize-ensurer.reset-size9.size11,.katex .katex-sizing.reset-size9.size11{font-size:1.43981em}.katex .fontsize-ensurer.reset-size10.size1,.katex .katex-sizing.reset-size10.size1{font-size:.24108em}.katex .fontsize-ensurer.reset-size10.size2,.katex .katex-sizing.reset-size10.size2{font-size:.289296em}.katex .fontsize-ensurer.reset-size10.size3,.katex .katex-sizing.reset-size10.size3{font-size:.337512em}.katex .fontsize-ensurer.reset-size10.size4,.katex .katex-sizing.reset-size10.size4{font-size:.385728em}.katex .fontsize-ensurer.reset-size10.size5,.katex .katex-sizing.reset-size10.size5{font-size:.433944em}.katex .fontsize-ensurer.reset-size10.size6,.katex .katex-sizing.reset-size10.size6{font-size:.48216em}.katex .fontsize-ensurer.reset-size10.size7,.katex .katex-sizing.reset-size10.size7{font-size:.578592em}.katex .fontsize-ensurer.reset-size10.size8,.katex .katex-sizing.reset-size10.size8{font-size:.694311em}.katex .fontsize-ensurer.reset-size10.size9,.katex .katex-sizing.reset-size10.size9{font-size:.833173em}.katex .fontsize-ensurer.reset-size10.size10,.katex .katex-sizing.reset-size10.size10{font-size:1em}.katex .fontsize-ensurer.reset-size10.size11,.katex .katex-sizing.reset-size10.size11{font-size:1.19961em}.katex .fontsize-ensurer.reset-size11.size1,.katex .katex-sizing.reset-size11.size1{font-size:.200965em}.katex .fontsize-ensurer.reset-size11.size2,.katex .katex-sizing.reset-size11.size2{font-size:.241158em}.katex .fontsize-ensurer.reset-size11.size3,.katex .katex-sizing.reset-size11.size3{font-size:.281351em}.katex .fontsize-ensurer.reset-size11.size4,.katex .katex-sizing.reset-size11.size4{font-size:.321543em}.katex .fontsize-ensurer.reset-size11.size5,.katex .katex-sizing.reset-size11.size5{font-size:.361736em}.katex .fontsize-ensurer.reset-size11.size6,.katex .katex-sizing.reset-size11.size6{font-size:.401929em}.katex .fontsize-ensurer.reset-size11.size7,.katex .katex-sizing.reset-size11.size7{font-size:.482315em}.katex .fontsize-ensurer.reset-size11.size8,.katex .katex-sizing.reset-size11.size8{font-size:.578778em}.katex .fontsize-ensurer.reset-size11.size9,.katex .katex-sizing.reset-size11.size9{font-size:.694534em}.katex .fontsize-ensurer.reset-size11.size10,.katex .katex-sizing.reset-size11.size10{font-size:.833601em}.katex .fontsize-ensurer.reset-size11.size11,.katex .katex-sizing.reset-size11.size11{font-size:1em}.katex .delimsizing.size1{font-family:KaTeX_Size1}.katex .delimsizing.size2{font-family:KaTeX_Size2}.katex .delimsizing.size3{font-family:KaTeX_Size3}.katex .delimsizing.size4{font-family:KaTeX_Size4}.katex .delimsizing.mult .delim-size1>span{font-family:KaTeX_Size1}.katex .delimsizing.mult .delim-size4>span{font-family:KaTeX_Size4}.katex .nulldelimiter{width:.12em;display:inline-block}.katex .delimcenter,.katex .op-symbol{position:relative}.katex .op-symbol.small-op{font-family:KaTeX_Size1}.katex .op-symbol.large-op{font-family:KaTeX_Size2}.katex .katex-accent>.vlist-t,.katex .op-limits>.vlist-t{text-align:center}.katex .katex-accent .accent-body{position:relative}.katex .katex-accent .accent-body:not(.accent-full){width:0}.katex .katex-overlay{display:block}.katex .mtable .vertical-separator{min-width:1px;display:inline-block}.katex .mtable .arraycolsep{display:inline-block}.katex .mtable .col-align-c>.vlist-t{text-align:center}.katex .mtable .col-align-l>.vlist-t{text-align:left}.katex .mtable .col-align-r>.vlist-t{text-align:right}.katex .svg-align{text-align:left}.katex svg{fill:currentColor;stroke:currentColor;height:inherit;width:100%;display:block;position:absolute}.katex svg path{stroke:none}.katex svg{fill-rule:nonzero;fill-opacity:1;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1}.katex img{border-style:none;min-width:0;max-width:none;min-height:0;max-height:none}.katex .katex-stretchy{width:100%;display:block;position:relative;overflow:hidden}.katex .katex-stretchy:after,.katex .katex-stretchy:before{content:""}.katex .hide-tail{width:100%;position:relative;overflow:hidden}.katex .halfarrow-left{width:50.2%;position:absolute;left:0;overflow:hidden}.katex .halfarrow-right{width:50.2%;position:absolute;right:0;overflow:hidden}.katex .brace-left{width:25.1%;position:absolute;left:0;overflow:hidden}.katex .brace-center{width:50%;position:absolute;left:25%;overflow:hidden}.katex .brace-right{width:25.1%;position:absolute;right:0;overflow:hidden}.katex .x-arrow-pad{padding:0 .5em}.katex .cd-arrow-pad{padding:0 .55556em 0 .27778em}.katex .mover,.katex .munder,.katex .x-arrow{text-align:center}.katex .boxpad{padding:0 .3em}.katex .fbox,.katex .fcolorbox{box-sizing:border-box;border:.04em solid}.katex .cancel-pad{padding:0 .2em}.katex .cancel-lap{margin-left:-.2em;margin-right:-.2em}.katex .katex-sout{border-bottom-style:solid;border-bottom-width:.08em}.katex .angl{box-sizing:border-box;border-top:.049em solid;border-right:.049em solid;margin-right:.03889em}.katex .anglpad{padding:0 .03889em}.katex .eqn-num:before{content:"(" counter(katexEqnNo) ")";counter-increment:katexEqnNo}.katex .mml-eqn-num:before{content:"(" counter(mmlEqnNo) ")";counter-increment:mmlEqnNo}.katex .mtr-glue{width:50%}.katex .cd-vert-arrow{display:inline-block;position:relative}.katex .cd-label-left{text-align:left;display:inline-block;position:absolute;right:calc(50% + .3em)}.katex .cd-label-right{text-align:right;display:inline-block;position:absolute;left:calc(50% + .3em)}.katex-display{text-align:center;margin:1em 0;display:block}.katex-display>.katex{text-align:center;white-space:nowrap;display:block}.katex-display>.katex>.katex-html{display:block;position:relative}.katex-display>.katex>.katex-html>.katex-tag{position:absolute;right:0}.katex-display.leqno>.katex>.katex-html>.katex-tag{left:0;right:auto}.katex-display.fleqn>.katex{text-align:left;padding-left:2em}body{counter-reset:katexEqnNo mmlEqnNo}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}button:focus-visible,input:focus-visible,a:focus-visible{outline:2px solid color-mix(in srgb, var(--ink) 48%, transparent);outline-offset:2px}.intro{text-align:center;min-height:92svh;padding:4rem var(--layout-gutter);box-sizing:border-box;background:radial-gradient(ellipse at 50% 48%, #2228310b, transparent 48%), var(--paper);flex-direction:column;justify-content:center;align-items:center;display:flex;position:relative}.scroll-cue{font-family:var(--sans);font-size:var(--type-caption);letter-spacing:0;text-transform:none;line-height:1}.eyebrow{color:var(--accent);font-family:var(--sans);font-size:var(--type-supporting);letter-spacing:-.01em;text-transform:none;margin-bottom:1.1rem;font-weight:500}.intro h1{max-width:900px;font-size:var(--type-article-title);letter-spacing:-.025em;margin:0;font-weight:500;line-height:1.04}.solid-title{display:block}.particle-title{color:#0000;max-width:100%;display:block;position:relative}.particle-title canvas{pointer-events:none;width:100%;height:100%;display:block;position:absolute;inset:0}.particle-bridge{z-index:6;opacity:0;pointer-events:none;width:100vw;height:100vh;position:fixed;inset:0}.particle-title:not([data-ready]),.particle-title[data-fallback=true]{color:var(--ink)}.token-grid.autoregressive-grid{letter-spacing:-.025em;border:0;flex-wrap:wrap;align-items:baseline;gap:.45rem .75rem;font-size:clamp(1.35rem,1.1vw + 1.05rem,2.125rem);display:flex}.sequence-position{white-space:nowrap;align-items:baseline;display:flex}.dek{max-width:42ch;color:var(--muted);font-size:var(--type-deck);letter-spacing:-.01em;text-wrap:balance;margin:1.6rem 0 0;line-height:1.45}.comparison-toggle,.context-controls>div,.reconsider-controls,.token-actions{flex-wrap:wrap;gap:.45rem;display:flex}.comparison-toggle{margin-top:1rem}.comparison-toggle button,.context-controls button,.reconsider-controls button,.token-actions button,.why-transport button,.compare-ar,.citation-copy,.lab-transport button{border-radius:var(--radius-control);background:color-mix(in srgb, var(--surface-1) 88%, var(--paper));min-width:44px;min-height:44px;color:var(--ink);cursor:pointer;font-size:var(--type-supporting);transition:transform var(--dur-fast) var(--ease-standard), border-color var(--dur-base) var(--ease-standard), background-color var(--dur-base) var(--ease-standard), box-shadow var(--dur-base) var(--ease-standard);border:1px solid #0000;padding:0 .85rem}:where(.comparison-toggle button,.context-controls button,.reconsider-controls button,.token-actions button,.why-transport button,.compare-ar,.citation-copy,.lab-transport button):hover:not(:disabled){background:var(--surface-2);border-color:#0000}:where(.comparison-toggle button,.context-controls button,.reconsider-controls button,.token-actions button,.why-transport button,.compare-ar,.citation-copy,.lab-transport button):active:not(:disabled){box-shadow:none;transform:scale(.97)}:where(.comparison-toggle button,.context-controls button,.reconsider-controls button,.token-actions button,.why-transport button,.compare-ar,.citation-copy,.lab-transport button):disabled{cursor:default;opacity:.42}.comparison-toggle button[aria-pressed=true],.context-controls button[aria-pressed=true],.reconsider-controls button[aria-pressed=true],.token-actions button[aria-pressed=true],.compare-ar[aria-pressed=true],.why-transport button.primary,.lab-transport button.primary{background:var(--ink);color:var(--paper);border-color:#0000;font-weight:500;box-shadow:0 1px 2px #161f2d14,0 5px 14px #161f2d1f}.why-transport button,.lab-transport button{justify-content:center;align-items:center;display:inline-flex;position:relative}.why-transport button svg,.lab-transport button svg{display:block}.why-transport button:after,.lab-transport button:after{content:attr(aria-label);z-index:5;border-radius:var(--radius-control);background:var(--ink);color:var(--paper);font-size:var(--type-caption);letter-spacing:.01em;white-space:nowrap;opacity:0;pointer-events:none;transition:opacity var(--dur-base) var(--ease-standard);padding:.3rem .55rem;position:absolute;bottom:calc(100% + 8px);left:50%;transform:translate(-50%)}.why-transport button:hover:after,.why-transport button:focus-visible:after,.lab-transport button:hover:after,.lab-transport button:focus-visible:after{opacity:1;transition-delay:.45s}[data-masked]{color:#0000;background:repeating-linear-gradient(90deg, var(--line) 0 3px, var(--line-soft) 3px 6px, var(--hairline) 6px 8px, var(--line-soft) 8px 11px);filter:blur(1.2px);-webkit-user-select:none;user-select:none;border-radius:3px}@media (prefers-reduced-motion:no-preference){[data-masked]{animation:2.4s linear infinite mask-drift}}@keyframes mask-drift{to{background-position:22px 0}}.lab-controls input[type=range],.why-scrubber input[type=range]{width:100%;min-height:44px;accent-color:var(--ink)}.latest-change{box-shadow:inset 0 0 0 2px var(--accent);animation:.7s ease-out changed-token}@keyframes changed-token{0%{box-shadow:inset 0 0 0 4px var(--accent)}to{box-shadow:inset 0 0 0 2px var(--accent)}}.scroll-cue{color:var(--muted-light);flex-direction:column;align-items:center;gap:.7rem;margin:0;display:flex;position:absolute;bottom:clamp(1.75rem,4vh,3rem);left:50%;transform:translate(-50%)}.scroll-cue:after{content:"";background:linear-gradient(to bottom, var(--muted-light), transparent);transform-origin:top;width:1px;height:28px;animation:scroll-cue-breathe 2.4s var(--ease-standard) infinite}@keyframes scroll-cue-breathe{0%,to{opacity:.45;transform:scaleY(.72)}50%{opacity:.9;transform:scaleY(1)}}.why-diffusion-section{padding:var(--space-section) var(--layout-gutter);background:var(--paper);scroll-margin-top:4rem}.why-diffusion-heading{max-width:700px;font-size:var(--type-section-title);letter-spacing:-.02em;margin:0 0 1.25rem;font-weight:500;line-height:1.12}.why-intro-layout{grid-template-columns:minmax(0,1fr) minmax(220px,.38fr);align-items:center;gap:clamp(2.5rem,7vw,7rem);display:grid}.why-particle-destination{aspect-ratio:1;justify-self:center;width:min(100%,280px)}.race-track{height:240vh;margin-top:4.5rem}.race-stage{--race-field:min(38vh, 34vw);--race-gap:clamp(1rem, 3vw, 2.5rem);--race-measure:calc(2 * var(--race-field) + var(--race-gap));top:var(--bar-height,48px);min-height:calc(100svh - var(--bar-height,48px));flex-direction:column;justify-content:center;align-items:center;gap:clamp(.9rem,2vh,1.5rem);padding-block:2rem;display:flex;position:sticky}.race-stage>*{width:100%;max-width:var(--race-measure)}.race-intro{border-bottom:1px solid var(--hairline);justify-content:space-between;align-items:baseline;gap:2rem;padding-bottom:.85rem;display:flex}.race-intro h3{max-width:26ch;font-size:var(--type-subsection);letter-spacing:-.02em;margin:0;font-weight:500;line-height:1.08}.race-pass{color:var(--muted-light);font-variant-numeric:tabular-nums;flex:none;font-size:clamp(1rem,.4vw + .9rem,1.25rem)}.race-pass b{color:var(--ink);font-weight:500}.race-lede{max-width:min(var(--measure-prose), 100%);color:var(--muted);font-size:var(--type-supporting);margin:0;line-height:1.6}.race-panels{gap:var(--race-gap);width:100%;max-width:var(--race-measure);grid-template-columns:repeat(2,minmax(0,1fr));align-items:start;display:grid}.race-panel{flex-direction:column;gap:.5rem;min-width:0;display:flex}.race-panel-heading{flex-direction:column;gap:.05rem;display:flex}.race-panel-heading b{font-size:var(--type-concept-label);letter-spacing:-.01em;font-weight:500;line-height:1.2}.race-panel-heading span{color:var(--muted-light);font-size:var(--type-caption)}.race-pool{height:clamp(38px,6vh,66px)}.race-field{aspect-ratio:1;border:1px solid color-mix(in srgb, var(--hairline) 78%, transparent);background-image:linear-gradient(to right, color-mix(in srgb, var(--hairline) 72%, transparent) 1px, transparent 1px), linear-gradient(to bottom, color-mix(in srgb, var(--hairline) 72%, transparent) 1px, transparent 1px);background-size:8.33333% 8.33333%;grid-template-columns:repeat(12,1fr);width:100%;display:grid}.race-field i{display:block}.race-track:not([data-particles]) .race-field i.is-draft,.race-track:not([data-particles]) .race-field i.is-resolved{box-shadow:inset 0 0 0 1px var(--paper)}.race-track:not([data-particles]) .race-field i.is-draft{background:color-mix(in srgb, var(--muted-light) 72%, var(--paper))}.race-track:not([data-particles]) .race-field i.is-resolved{background:var(--race-hue)}.race-count{color:var(--muted-light);font-size:var(--type-caption);font-variant-numeric:tabular-nums;margin:.1rem 0 0}.race-count b{color:var(--ink);font-weight:500}.race-note{max-width:min(var(--measure-prose), 100%);color:var(--muted-light);font-size:var(--type-caption);margin:0;line-height:1.5}.why-diffusion-intro{max-width:var(--measure-prose);color:var(--muted);font-size:var(--type-body);margin:0;line-height:1.6}.inline-external-link{color:var(--ink);text-decoration:underline;-webkit-text-decoration-color:color-mix(in srgb, currentColor 40%, transparent);text-decoration-color:color-mix(in srgb, currentColor 40%, transparent);text-underline-offset:.2em;font-weight:550}.inline-external-link:hover{text-decoration-color:currentColor}.why-compare{margin-top:3.5rem}.why-compare-controls{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.75rem 1.5rem;display:flex}.why-compare-hint{color:var(--muted);font-size:var(--type-caption);margin:0}.why-compare-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:1.25rem;margin:1.5rem 0;display:grid}.why-panel{border-radius:var(--radius-card);background:var(--surface-1);min-width:0;box-shadow:var(--shadow-card);padding:1.1rem 1.2rem 1.25rem}.why-panel-heading{font-size:var(--type-concept-label);flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:.35rem 1rem;font-weight:530;line-height:1.25;display:flex}.why-panel-tag{color:var(--muted);font-size:var(--type-caption);font-weight:500}.why-panel-status{color:var(--muted);font-size:var(--type-caption);font-variant-numeric:tabular-nums;margin:.5rem 0 0}.why-token-row{flex-wrap:wrap;gap:.3rem;margin:1rem 0 0;display:flex}.why-token{border:1px solid var(--hairline);border-radius:var(--radius-control);background:color-mix(in srgb, var(--surface-1) 58%, transparent);min-width:0;min-height:44px;color:var(--ink);cursor:pointer;text-align:left;transition:transform var(--dur-fast) var(--ease-standard), border-color var(--dur-base) var(--ease-standard), background-color var(--dur-base) var(--ease-standard), box-shadow var(--dur-base) var(--ease-standard);flex:5.75rem;gap:.25rem;padding:.5rem .4rem;display:grid}.why-token>span{color:var(--muted);font-family:var(--sans);font-size:.75rem;font-weight:550;line-height:1}.why-token strong{text-overflow:ellipsis;white-space:nowrap;transition:color var(--dur-slow) var(--ease-standard);font-size:1rem;font-weight:500;line-height:1.25;overflow:hidden}.why-token.is-placeholder{border-style:dashed;border-color:var(--hairline)}.why-token.is-placeholder strong{color:var(--muted-light)}.why-token.is-provisional{border-style:dashed}.why-token.is-provisional strong{font-style:italic}.why-token.is-revised{border-color:color-mix(in srgb, var(--ink) 28%, var(--hairline))}.why-token.is-revised strong{text-underline-offset:.18em;text-decoration:underline}.why-token.is-revised.latest-change{animation:.9s ease-out why-revision}@keyframes why-revision{0%{transform:translateY(-3px)}to{transform:translateY(0)}}.why-token.selected{z-index:1;border-style:solid;border-color:var(--line-soft);background:var(--surface-0);position:relative;box-shadow:0 4px 20px #161f2d2e}.why-token:hover{border-color:var(--line-soft);background:var(--surface-1)}.why-token:active{transform:scale(.98)}.why-panel-explanation{min-height:3em;color:var(--ink);font-size:var(--type-supporting);margin:1rem 0 0;line-height:1.5}.why-transport{flex-wrap:wrap;justify-content:center;align-items:center;gap:.45rem;max-width:600px;margin-inline:auto;padding:.8rem 0;display:flex}.why-scrubber{flex:8rem;align-items:center;min-width:6rem;display:flex}.why-scrubber input[type=range]{accent-color:var(--muted-light);margin:0}.why-transport>span{color:var(--muted);font-size:var(--type-caption);font-variant-numeric:tabular-nums}.why-matters{margin-top:3.5rem}.why-matters-heading{font-size:var(--type-subsection);letter-spacing:-.015em;margin:0 0 1.25rem;font-weight:560;line-height:1.15}.why-matters-list{grid-template-columns:repeat(3,minmax(0,1fr));gap:2.5rem;margin:0;display:grid}.why-matters-list dt{color:var(--ink);font-size:var(--type-body);font-weight:560;line-height:1.3}.why-matters-list dd{color:var(--muted);font-size:var(--type-supporting);margin:.5rem 0 0;line-height:1.6}.why-matters-balance{border-left:2px solid var(--line-soft);max-width:62ch;margin-top:1.5rem;padding:.2rem 0 .2rem 1.1rem}.why-matters-balance p{color:var(--muted);font-size:var(--type-supporting);margin:0;line-height:1.6}.why-matters-balance strong{color:var(--ink);font-weight:560}.why-now-disclosure{max-width:62ch;margin-top:2.5rem}.why-now-disclosure summary{min-height:44px;color:var(--ink);cursor:pointer;font-size:var(--type-supporting);align-items:center;font-weight:560;display:flex}.why-now-disclosure dl{gap:1rem;margin:.5rem 0 0;display:grid}.why-now-disclosure dt{font-size:var(--type-supporting);font-weight:560}.why-now-disclosure dd{color:var(--muted);font-size:var(--type-supporting);margin:.25rem 0 0;line-height:1.6}.why-diffusion-transition{margin-top:3.5rem}.why-diffusion-transition p{max-width:62ch;font-size:var(--type-deck);text-wrap:pretty;margin:0;font-weight:500;line-height:1.4}.why-diffusion-transition .continue-action{margin-top:1rem}.scene{height:220svh}.scene-sticky{width:100%;min-height:100svh;max-width:calc(var(--container-article) + 2 * var(--layout-gutter));padding:5rem var(--layout-gutter);box-sizing:border-box;grid-template-columns:minmax(240px,.82fr) minmax(520px,1.6fr);align-items:center;gap:clamp(3rem,8vw,9rem);margin:0 auto;display:grid;position:sticky;top:0}.scene-copy{align-self:center}.scene-label{color:var(--muted);font-family:var(--sans);font-size:var(--type-supporting);letter-spacing:-.01em;text-transform:none;margin-bottom:.85rem;font-weight:560;line-height:1.25;display:flex}.scene-copy h2{max-width:460px;color:var(--ink);font-family:var(--sans);font-size:var(--type-subsection);letter-spacing:-.02em;margin:0 0 1.1rem;font-style:normal;font-weight:510;line-height:1.12}.scene-copy p{max-width:min(100%, var(--container-prose));color:var(--muted);font-size:var(--type-body);line-height:1.6}.technical-note{border-left:2px solid var(--line-soft);max-width:430px;margin-top:1.5rem;padding:.2rem 0 .2rem 1.1rem}.technical-note>span{color:var(--muted);font-family:var(--sans);font-size:var(--type-caption);letter-spacing:0;text-transform:none;margin-bottom:.6rem;font-weight:560;line-height:1.2;display:block}.technical-note code{color:var(--ink);font-family:var(--mono);font-size:var(--type-supporting);letter-spacing:-.01em;overflow-wrap:anywhere;line-height:1.6;display:block}.technical-note-math{color:var(--ink);font-size:var(--type-supporting);overflow:auto hidden}.technical-note-math .katex-display{text-align:left;margin:0}.technical-note-math .katex-display>.katex{text-align:left;white-space:normal}.scene-copy .technical-note p{max-width:390px;color:var(--muted);font-size:var(--type-supporting);margin:.75rem 0 0;line-height:1.5}.visual{width:100%;min-height:355px;box-shadow:none;box-sizing:border-box;background:0 0;border:0;flex-direction:column;justify-content:space-between;padding:1.4rem 1.6rem;display:flex}.visual-meta{color:var(--muted);font-family:var(--sans);font-size:var(--type-caption);letter-spacing:0;text-transform:none;justify-content:space-between;line-height:1.2;display:flex}.visual-meta span:last-child{color:var(--muted-light)}.autoregressive-line{letter-spacing:-.035em;min-height:5rem;color:var(--ink);flex-wrap:wrap;align-content:center;align-items:baseline;gap:.2em .32em;font-size:clamp(1.75rem,1.6vw + 1.35rem,3rem);line-height:1.08;display:flex}.token{opacity:0;transition:opacity var(--dur-base) var(--ease-standard), transform var(--dur-slow) var(--ease-emphasized);transform:translateY(.18em)}.token.visible{opacity:1;transform:translateY(0)}.cursor{background:var(--accent);opacity:1;width:2px;height:.8em;transition:opacity var(--dur-base) var(--ease-standard);margin-left:.05em}.cursor.complete{opacity:0}.progress-track{background:color-mix(in srgb, var(--line-soft) 68%, transparent);border-radius:999px;width:100%;height:3px;overflow:hidden}.progress-track span{border-radius:inherit;background:var(--muted-light);transform-origin:0;width:100%;height:100%;transition:transform var(--dur-base) linear;display:block}.diffusion-visual{min-height:390px}.token-grid{flex-wrap:wrap;gap:.35rem clamp(.25rem,.7vw,.6rem);display:flex}.slot{box-sizing:border-box;height:116px;transition:background-color var(--dur-slow) var(--ease-standard);background:0 0;border:0;flex-direction:column;flex:1 0 auto;justify-content:space-between;padding:.65rem .5rem 1rem;display:flex}.slot-index{display:none}.slot-value{letter-spacing:-.025em;font-size:clamp(.82rem,1.2vw,1.14rem);animation:.22s ease-out both token-in}.slot-value-stack{min-height:1.35em;display:inline-grid}.slot-value-stack>.slot-value{grid-area:1/1}.slot-value.previous{opacity:max(0, calc(1 - var(--blend,0) * 2));transform:translateY(calc(var(--blend,0) * -3px));display:block}.slot-value.upcoming{opacity:max(0, calc((var(--blend,0) - .5) * 2));transform:translateY(calc((1 - var(--blend,0)) * 3px))}.slot.revision .slot-value.previous{color:var(--muted-light);filter:blur(.15px)}.slot.revision .slot-value.upcoming{color:var(--accent)}.slot.unresolved{color:var(--muted-light);background:0 0}.slot.tentative{color:var(--muted)}.slot.tentative .slot-value{font-style:italic}.slot.resolved{color:var(--ink)}.causal-visual{justify-content:flex-start;gap:1.15rem;min-height:0}.causal-canvas{gap:.5rem;display:grid}.causal-row{flex-wrap:wrap;align-items:stretch;gap:.5rem;display:flex}.causal-cell{border:1px solid var(--hairline);border-radius:var(--radius-control);background:color-mix(in srgb, var(--surface-1) 58%, transparent);min-width:0;color:var(--muted-light);font:inherit;text-align:left;transition:color var(--dur-base) var(--ease-standard), border-color var(--dur-base) var(--ease-standard), background-color var(--dur-base) var(--ease-standard), box-shadow var(--dur-base) var(--ease-standard);flex-direction:column;flex:1 0 auto;gap:.3rem;padding:.65rem .6rem .7rem;display:flex}.causal-cell:not(.static-cell){cursor:pointer}.causal-index{color:var(--muted-light);font-family:var(--sans);letter-spacing:.02em;font-size:.62rem;font-weight:560;line-height:1}.causal-words{white-space:nowrap;letter-spacing:0;align-items:baseline;gap:.32em;font-size:clamp(.95rem,1.15vw,1.22rem);line-height:1.15;display:flex}.causal-value{animation:.24s ease-out both token-in}.causal-before{color:var(--muted-light);font-size:.78em;text-decoration-thickness:1px}.causal-cell small{color:var(--muted-light);font-family:var(--sans);letter-spacing:.01em;white-space:nowrap;font-size:.62rem;font-weight:500;line-height:1.2}.causal-meter{background:var(--line-soft);border-radius:999px;height:3px;display:block;overflow:hidden}.causal-meter i{border-radius:inherit;background:var(--muted-light);transform-origin:0;height:100%;transition:transform var(--dur-slow) var(--ease-emphasized);display:block}.causal-cell.unresolved{background:0 0;border-style:dashed}.causal-cell.unresolved .causal-value{color:var(--muted-light);font-family:var(--mono);letter-spacing:0;font-size:.66em}.causal-cell.tentative{color:var(--muted)}.causal-cell.tentative .causal-value{font-style:italic}.causal-cell.resolved{border-color:var(--line-soft);background:color-mix(in srgb, var(--surface-2) 72%, transparent);color:var(--ink)}.causal-cell.is-revised{border-color:color-mix(in srgb, var(--ink) 28%, var(--hairline));color:var(--ink)}.causal-cell.is-revised small{color:var(--ink)}.causal-cell.is-evidence,.causal-cell.is-selected.is-evidence{border-color:var(--line);background:color-mix(in srgb, var(--surface-2) 85%, transparent);box-shadow:none;color:var(--ink)}.causal-cell.is-selected{z-index:1;border-style:solid;border-color:var(--line-soft);background:var(--surface-0);color:var(--ink);position:relative;box-shadow:0 4px 20px #161f2d2e}.causal-cell.is-selected .causal-index{color:var(--ink)}.causal-cell.is-selected small{color:var(--muted)}.causal-cell:not(.static-cell):hover{border-color:var(--line-soft);background:var(--surface-1)}.causal-cell:focus-visible{outline:2px solid var(--accent);outline-offset:1px}.causal-cell.is-survivor{border-top-style:dashed}.causal-cell.is-wrong{border-top-color:var(--accent);color:var(--accent)}.causal-cell.is-right{border-color:var(--line-soft);color:var(--ink)}.causal-cell.is-wrong{border-color:color-mix(in srgb, var(--particle-coral) 30%, var(--hairline));background:color-mix(in srgb, var(--particle-coral) 7%, var(--surface-0));color:var(--ink)}.causal-cell.is-wrong small{color:color-mix(in srgb, var(--particle-coral) 68%, var(--ink))}.causal-cell.is-wrong .causal-meter i{background:color-mix(in srgb, var(--particle-coral) 72%, var(--ink))}.loss-meter{background:color-mix(in srgb, var(--accent) 18%, transparent)}.causal-threshold{color:var(--muted-light);font-family:var(--sans);font-size:var(--type-caption);margin:0;line-height:1.5}.causal-threshold b{color:var(--muted);font-weight:560}.why-readout{border-top:1px solid var(--hairline);gap:.45rem;padding:.95rem 0 0;display:grid}.why-readout-label{color:var(--ink);font-family:var(--sans);font-size:var(--type-caption);letter-spacing:0;font-weight:560;line-height:1.25}.why-readout-body{max-width:62ch;color:var(--muted);font-size:var(--type-supporting);text-wrap:pretty;margin:0;line-height:1.6}.why-readout-hint{color:var(--muted-light);font-family:var(--sans);font-size:var(--type-caption);margin:0;line-height:1.4}.why-readout-evidence{font-family:var(--sans);font-size:var(--type-caption);flex-wrap:wrap;align-items:center;gap:.35rem .5rem;margin:.15rem 0 0;line-height:1.2;display:flex}.why-readout-evidence span{color:var(--muted-light)}.why-readout-evidence b{background:var(--surface);box-shadow:inset 0 -2px 0 var(--accent);color:var(--ink);padding:.22rem .45rem;font-weight:560}.context-visual{min-height:0}.context-canvas{gap:.45rem}.context-cell{gap:.18rem;padding:.4rem .26rem .42rem}.context-cell .causal-index{font-size:.56rem}.context-row .causal-words{font-size:clamp(.76rem,.92vw,.97rem)}.context-cell.is-mask{border-color:color-mix(in srgb, var(--ink) 28%, var(--hairline));color:var(--accent)}.context-cell.is-mask .causal-value{color:var(--accent);font-style:normal}.context-cell.is-mask.unresolved .causal-value,.context-row .causal-value:not(:only-child){font-family:inherit}.context-flow{align-items:center;gap:1.2rem;height:14px;display:flex}.context-controls button{align-items:center;gap:.55rem;display:flex}.context-controls button i{opacity:.45;transform-origin:0;background:currentColor;width:42px;height:3px;display:block}.context-controls button b{font-family:var(--sans);font-size:var(--type-caption);font-variant-numeric:tabular-nums;font-weight:560}.block-visual{min-height:390px}.block-row{grid-template-columns:repeat(3,minmax(0,1fr));gap:.7rem;display:grid}.token-block{border-radius:var(--radius-card);background:var(--surface-1);min-width:0;box-shadow:var(--shadow-card);transition:box-shadow var(--dur-base) var(--ease-standard), opacity var(--dur-base) var(--ease-standard);padding:.45rem}.token-block.active{box-shadow:inset 0 0 0 1px var(--accent), var(--shadow-card)}.token-block.committed{border-color:var(--ink);background:var(--surface)}.token-block.queued{opacity:.48}.block-label{color:var(--muted);font-family:var(--sans);font-size:var(--type-caption);letter-spacing:0;text-transform:none;justify-content:space-between;padding:.2rem .15rem .65rem;line-height:1.2;display:flex}.token-block.active .block-label span:last-child{color:var(--accent)}.token-block.committed .block-label span:last-child{color:var(--ink)}.block-token-grid{flex-wrap:wrap;display:flex}.block-token-grid .slot{border-radius:var(--radius-control);border:1px solid #0000;height:104px;padding-inline:.4rem}.block-token-grid .slot.unresolved{border-color:var(--line-soft);background:color-mix(in srgb, var(--surface-1) 72%, transparent)}.block-token-grid .slot.tentative{border-color:var(--line-soft);background:var(--surface-1)}.block-token-grid .slot.resolved{border-color:var(--hairline);background:var(--surface-1)}.lab-section{padding:var(--space-section) var(--layout-gutter)}.lab-inner{width:100%;max-width:var(--container-article);margin:0 auto}.lab-intro{grid-template-columns:minmax(190px,.45fr) minmax(0,1.55fr);align-items:start;gap:clamp(1.5rem,4vw,4rem);margin-bottom:2.75rem;display:grid}.lab-intro h2{max-width:780px;font-family:var(--sans);font-size:var(--type-section-title);letter-spacing:-.02em;margin:0;font-weight:510;line-height:1.12}.lab-intro p{max-width:700px;color:var(--muted);font-size:var(--type-body);margin:1.1rem 0 0;line-height:1.6}.lab-intro .lab-deck{color:var(--ink);font-size:var(--type-deck);letter-spacing:-.01em;margin:0;font-weight:470;line-height:1.3}.lab-workbench{grid-template-columns:minmax(0,1fr) 280px;align-items:start;gap:1rem;min-height:480px;display:grid}.lab-settings{border-radius:var(--radius-card);background:color-mix(in srgb, var(--surface-1) 76%, transparent);grid-column:1/-1}.lab-settings>summary{border-radius:var(--radius-card);min-height:52px;color:var(--ink);cursor:pointer;font-size:var(--type-supporting);transition:background-color var(--dur-fast) var(--ease-standard);justify-content:space-between;align-items:center;gap:1rem;padding:0 1rem;list-style:none;display:flex}.lab-settings>summary::-webkit-details-marker{display:none}.lab-settings>summary:hover{background:var(--surface-2)}.lab-settings[open]>summary{border-radius:var(--radius-card) var(--radius-card) 0 0}.lab-settings>summary small{color:var(--muted);font-family:var(--mono);font-size:var(--type-caption);font-variant-numeric:tabular-nums}.lab-controls{grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(1rem,3vw,2rem);padding:.25rem 1rem 1rem;display:grid}.lab-controls label{padding:.75rem .25rem .25rem;display:block}.lab-controls label:first-child{padding-top:.75rem}.lab-controls label>span{color:var(--ink);font-size:var(--type-supporting);flex-wrap:nowrap;justify-content:space-between;align-items:baseline;gap:.25rem 1rem;line-height:1.3;display:flex}.lab-controls label>span b{min-width:0}.lab-controls b{font-weight:560}.lab-controls output{color:var(--muted);font-family:var(--mono);font-size:var(--type-supporting);font-variant-numeric:tabular-nums;white-space:nowrap;flex:none}.lab-controls input[type=range]{margin:1rem 0 .75rem}.lab-controls small{color:var(--muted);font-size:var(--type-caption);line-height:1.5;display:block}.lab-canvas-column{border:1px solid color-mix(in srgb, var(--hairline) 84%, transparent);border-radius:var(--radius-card);background:linear-gradient(145deg, #ffffffd6, #f8f9fba8), var(--surface-0);flex-direction:column;justify-content:space-between;min-width:0;min-height:480px;padding:1.35rem;display:flex;box-shadow:0 1px 2px #161f2d06,0 12px 34px #161f2d0b}.lab-status{min-height:1rem}.lab-token-grid{grid-template-columns:repeat(9,minmax(0,1fr));gap:.45rem;margin-block:2rem;display:grid}.lab-token-grid button{border:1px solid var(--hairline);border-radius:var(--radius-control);background:color-mix(in srgb, var(--surface-1) 58%, transparent);min-width:0;min-height:142px;color:var(--ink);cursor:pointer;text-align:left;transition:transform var(--dur-fast) var(--ease-standard), border-color var(--dur-base) var(--ease-standard), background-color var(--dur-base) var(--ease-standard), box-shadow var(--dur-base) var(--ease-standard);flex-direction:column;justify-content:space-between;align-items:flex-start;gap:.4rem;padding:.65rem .5rem;display:flex}.lab-token-grid button.revisable{color:var(--muted);background:0 0;border-style:dashed}.lab-token-grid button.accepted{border-color:var(--line-soft);background:color-mix(in srgb, var(--surface-2) 72%, transparent)}.lab-token-grid button:hover{border-color:var(--line-soft);background:var(--surface-1)}.lab-token-grid button.selected{z-index:1;border-style:solid;border-color:var(--line-soft);background:var(--surface-0);position:relative;box-shadow:0 4px 20px #161f2d2e}.lab-token-grid button:active{transform:scale(.98)}.lab-token-grid button>span,.lab-token-grid button>small{font-family:var(--sans);letter-spacing:0;font-size:.75rem;line-height:1.3}.lab-token-grid button>span{color:var(--muted);font-weight:560}.lab-token-grid button>small{font-weight:500}.lab-token-grid button strong{overflow-wrap:anywhere;max-width:100%;font-size:clamp(.85rem,.95vw,1.05rem);font-weight:500;line-height:1.2}.lab-token-grid button.revisable strong{font-style:italic}.lab-token-grid button.locked{border-style:solid;border-color:color-mix(in srgb, var(--ink) 65%, var(--line-soft))}.compare-ar{align-self:flex-start;margin-top:1rem}.lab-ar-strip{border-radius:var(--radius-control);background:var(--surface-1);font-size:var(--type-supporting);flex-wrap:wrap;align-items:center;gap:.35rem;margin-top:.75rem;padding:.7rem;display:flex}.lab-ar-strip span{width:100%;color:var(--muted);font-size:var(--type-caption)}.lab-ar-strip b{font-weight:500}.lab-transport{align-items:center;gap:.45rem;padding:.8rem 0;display:flex}.metric-explainer{color:var(--muted);font-size:var(--type-caption);margin:.75rem 0 0;line-height:1.5}.inspector-details{margin-top:1.5rem}.inspector-details summary{color:var(--muted);font-size:var(--type-caption);letter-spacing:.01em;cursor:pointer;font-weight:560}.inspector-details summary:hover{color:var(--ink)}.continue-action{min-height:44px;color:var(--ink);font-size:var(--type-supporting);text-underline-offset:.25em;align-items:center;gap:.75rem;margin-top:2rem;font-weight:500;display:inline-flex}.foundation-chapter{position:relative}.conclusion-summary{max-width:620px;color:var(--muted);font-family:var(--sans);font-size:var(--type-deck);letter-spacing:0;margin:0;line-height:1.5}.lab-transport>span{color:var(--muted);font-family:var(--sans);font-size:var(--type-caption);letter-spacing:0;margin-left:auto}.probability-inspector{border-radius:var(--radius-card);background:color-mix(in srgb, var(--surface-1) 72%, transparent);min-height:480px;padding:1.35rem}.inspector-heading{color:var(--muted);font-family:var(--sans);font-size:var(--type-supporting);letter-spacing:0;text-transform:none;justify-content:space-between;display:flex}.inspector-heading strong{color:var(--ink);font-size:1em;font-weight:560}.probability-inspector h3{font-size:var(--type-subsection);letter-spacing:-.015em;margin:2rem 0 1.25rem;font-weight:530;line-height:1.15}.probability-chart{margin-top:.25rem;padding-top:1.15rem}.probability-plot{border-bottom:1px solid var(--line);align-items:flex-end;gap:.4rem;height:clamp(96px,14vh,132px);display:flex;position:relative}.probability-bar{flex-direction:column;flex:1;justify-content:flex-end;gap:.3rem;min-width:0;height:100%;display:flex}.probability-bar i{background:var(--hairline);width:100%;min-height:2px;max-height:100%;transition:height var(--dur-slow) var(--ease-emphasized), background-color var(--dur-base) var(--ease-standard), box-shadow var(--dur-base) var(--ease-standard);flex:none}.probability-bar[data-shown] i{background:var(--ink)}.probability-bar[data-truth]:not([data-shown]) i{background:color-mix(in srgb, var(--ink) 14%, transparent);box-shadow:inset 0 0 0 1px var(--ink)}.probability-bar output{color:var(--muted);font-family:var(--mono);font-size:var(--type-caption);font-variant-numeric:tabular-nums;text-align:center;flex:none;line-height:1}.probability-bar[data-shown] output{color:var(--ink)}.probability-threshold{border-top:1px dashed color-mix(in srgb, var(--ink) 50%, transparent);pointer-events:none;position:absolute;left:0;right:0}.probability-threshold i{color:var(--muted-light);font-size:var(--type-caption);white-space:nowrap;font-style:normal;position:absolute;bottom:3px;right:0}.probability-axis{gap:.4rem;margin-top:.45rem;display:flex}.probability-axis span{min-width:0;color:var(--muted);font-size:var(--type-caption);text-align:center;text-overflow:ellipsis;white-space:nowrap;flex:1;line-height:1.2;overflow:hidden}.probability-axis span[data-shown]{color:var(--ink);font-weight:550}.probability-inspector dl{gap:.1rem;margin:.75rem 0 0;display:grid}.probability-inspector dl div{font-size:var(--type-caption);justify-content:space-between;gap:1rem;padding:.35rem 0;display:flex}.probability-inspector dt{color:var(--muted)}.probability-inspector dd{font-family:var(--mono);font-variant-numeric:tabular-nums;margin:0}.classifier-guidance-section{--guidance-representation:#425766;--guidance-classifier:#8a6a53;padding:var(--space-section) var(--layout-gutter);background:var(--paper)}.classifier-guidance-inner{width:100%;max-width:var(--container-article);margin:0 auto}.classifier-guidance-intro{grid-template-columns:minmax(0,.9fr) minmax(320px,1.1fr);align-items:end;gap:1rem clamp(3rem,7vw,7rem);display:grid}.classifier-guidance-intro .scene-label{grid-column:1/-1}.classifier-guidance-intro h2{max-width:560px;font-size:var(--type-section-title);letter-spacing:-.02em;margin:0;font-weight:500;line-height:1.12}.classifier-guidance-intro p{max-width:var(--measure-prose);color:var(--muted);font-size:var(--type-body);margin:0;line-height:1.58}.classifier-guidance-explorable{margin-top:clamp(3rem,6vw,5rem)}.guidance-timeline{overscroll-behavior-inline:contain;scroll-snap-type:inline proximity;scrollbar-width:thin;scrollbar-color:var(--line-soft) transparent;width:100%;scroll-padding-inline:1rem;overflow-x:auto}.guidance-trajectory{--guidance-state-width:132px;--guidance-link-width:clamp(28px, 2.8vw, 44px);justify-content:center;align-items:flex-start;width:max-content;min-width:100%;min-height:360px;margin:0;padding:.5rem 0 0;list-style:none;display:flex}.guidance-state-item{flex:0 0 calc(var(--guidance-state-width) + var(--guidance-link-width));grid-template-columns:var(--guidance-state-width) var(--guidance-link-width);scroll-snap-align:center;align-items:start;display:grid;position:relative}.guidance-state-button{width:var(--guidance-state-width);min-height:142px;color:var(--muted-light);cursor:pointer;text-align:center;opacity:.46;transform-origin:50% 42%;transition:color var(--dur-base) var(--ease-standard), opacity var(--dur-base) var(--ease-standard), transform var(--dur-slow) var(--ease-emphasized);background:0 0;border:0;border-radius:6px;grid-column:1;grid-template-rows:auto 90px auto;justify-items:center;gap:.25rem;padding:0;display:grid}.guidance-state-button:hover{color:var(--muted);opacity:.78}.guidance-state-button[aria-pressed=true]{color:var(--guidance-representation);opacity:1;transform:translateY(-2px)scale(1.065)}.guidance-state-notation{color:currentColor;letter-spacing:-.025em;font-family:KaTeX_Math,Times New Roman,serif;font-size:1.45rem;line-height:1}.guidance-state-notation i{font-weight:400}.guidance-state-notation sub{margin-left:.04em;font-family:inherit;font-size:.62em;line-height:0}.guidance-state-label{color:currentColor;font-size:var(--type-caption);line-height:1.2}.guidance-vectors{color:currentColor;justify-self:center;width:116px;height:auto;overflow:visible}.guidance-vector-segment{fill:currentColor;transition:transform var(--dur-slow) var(--ease-emphasized), opacity var(--dur-slow) var(--ease-standard), fill var(--dur-base) var(--ease-standard)}.guidance-vector-ellipsis{fill:currentColor;opacity:.55}.guidance-state-item[data-phase=update] .guidance-state-button[aria-pressed=true] .guidance-vector-segment{animation:guidance-vector-update .26s var(--ease-emphasized)}.guidance-trajectory-arrow{width:100%;height:20px;color:var(--line);grid-column:2;align-self:start;margin-top:55px;overflow:visible}.guidance-trajectory-arrow path{fill:none;stroke:currentColor;stroke-width:1.15px;stroke-linecap:round;stroke-linejoin:round;vector-effect:non-scaling-stroke}.guidance-state-note{top:190px;left:calc(var(--guidance-state-width) / 2);width:150px;color:var(--muted-light);font-size:var(--type-caption);text-align:center;animation:guidance-copy-in .22s var(--ease-emphasized) both;margin:0;line-height:1.3;position:absolute;transform:translate(-50%)}.guidance-exchange{top:146px;left:calc(var(--guidance-state-width) / 2);width:300px;min-height:204px;animation:guidance-copy-in .22s var(--ease-emphasized) both;align-content:end;justify-items:center;display:grid;position:absolute;transform:translate(-50%)}.guidance-flow{z-index:1;width:112px;height:112px;position:absolute;top:-1px;left:50%;overflow:visible;transform:translate(-50%)}.guidance-flow-path{fill:none;stroke:currentColor;stroke-width:1.25px;stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:1;stroke-dashoffset:1px;opacity:.55;animation:guidance-path-in .2s var(--ease-standard) forwards}.guidance-flow-query{stroke:var(--guidance-representation)}.guidance-flow-update{stroke:var(--guidance-classifier);animation-delay:.19s}.guidance-flow marker path{stroke:none}#guidance-query-head path{fill:var(--guidance-representation)}#guidance-update-head path{fill:var(--guidance-classifier)}.guidance-exchange[data-guidance-phase=check] .guidance-flow-query{opacity:.82}.guidance-exchange[data-guidance-phase=check] .guidance-flow-update{opacity:.18}.guidance-exchange[data-guidance-phase=update] .guidance-flow-query{opacity:.4}.guidance-exchange[data-guidance-phase=update] .guidance-flow-update{opacity:.88}.guidance-exchange[data-guidance-phase=continue] .guidance-flow-path{opacity:.34}.guidance-flow-particle{opacity:0;transform-box:fill-box;transform-origin:50%}.guidance-flow-particle-down{fill:var(--guidance-representation);animation:guidance-particle-down .22s var(--ease-standard) 40ms forwards}.guidance-flow-particle-up{fill:var(--guidance-classifier);animation:guidance-particle-up .24s var(--ease-emphasized) .24s forwards}.guidance-classifier{width:min(340px,100%);color:var(--guidance-classifier);justify-items:center;display:grid}.guidance-classifier>span{color:currentColor;font-size:var(--type-caption);line-height:1.3}.guidance-classifier svg{width:min(280px,100%);height:auto;overflow:visible}.guidance-classifier path{fill:none;stroke:currentColor;stroke-width:1.25px;stroke-linecap:round;vector-effect:non-scaling-stroke}.guidance-classifier text{fill:currentColor;font-family:var(--sans);font-size:13px;font-weight:500}.guidance-output-node{color:var(--muted-light);opacity:.42;transition:color var(--dur-base) var(--ease-standard), opacity var(--dur-base) var(--ease-standard);flex:0 0 190px;align-content:start;justify-items:start;gap:.75rem;padding:.15rem 0 0 .75rem;display:grid}.guidance-output-node>span{font-size:var(--type-caption);text-transform:lowercase;line-height:1}.guidance-output-node small{color:currentColor;font-size:var(--type-caption);font-weight:400}.guidance-output-node p{max-width:185px;color:var(--ink);letter-spacing:-.015em;animation:guidance-copy-in .24s var(--ease-emphasized) both;margin:0;font-size:1.05rem;line-height:1.35}.guidance-output-node[data-revealed=true]{color:var(--ink);opacity:1}.guidance-annotation{max-width:720px;min-height:4.8rem;animation:guidance-copy-in .22s var(--ease-emphasized) both;grid-template-columns:150px minmax(0,1fr);align-items:baseline;gap:1rem 2rem;margin:1.25rem auto 0;display:grid}.guidance-annotation strong{color:var(--ink);font-size:var(--type-supporting);font-weight:500}.guidance-annotation p{color:var(--muted);font-size:var(--type-body);margin:0;line-height:1.55}.guidance-controls{grid-template-columns:auto minmax(140px,1fr) auto auto;align-items:center;gap:.6rem;max-width:720px;margin:1.5rem auto 0;display:grid}.guidance-controls button{border-radius:var(--radius-control);background:color-mix(in srgb, var(--surface-1) 88%, var(--paper));min-width:72px;min-height:44px;color:var(--ink);cursor:pointer;font-size:var(--type-supporting);transition:transform var(--dur-fast) var(--ease-standard), background-color var(--dur-base) var(--ease-standard), opacity var(--dur-base) var(--ease-standard);border:1px solid #0000;padding:0 .85rem}.guidance-controls button:hover:not(:disabled){background:var(--surface-2)}.guidance-controls button:active:not(:disabled){transform:scale(.97)}.guidance-controls button:disabled{cursor:default;opacity:.4}.guidance-scrubber{min-width:0}.guidance-scrubber input{width:100%;min-height:44px;accent-color:var(--guidance-representation);margin:0}.guidance-controls output{min-width:3.8rem;color:var(--muted);font-family:var(--mono);font-size:var(--type-caption);font-variant-numeric:tabular-nums;text-align:center}@keyframes guidance-path-in{to{stroke-dashoffset:0}}@keyframes guidance-particle-down{0%{opacity:0;transform:translateY(0)scale(.8)}18%{opacity:1}82%{opacity:1}to{opacity:0;transform:translateY(94px)scale(1)}}@keyframes guidance-particle-up{0%{opacity:0;transform:translateY(0)scale(.8)}18%{opacity:1}82%{opacity:1}to{opacity:0;transform:translateY(-94px)scale(1)}}@keyframes guidance-vector-update{0%,to{fill:var(--guidance-representation)}48%{fill:var(--guidance-classifier)}}@keyframes guidance-copy-in{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}.probability-inspector>p{color:var(--muted);font-size:var(--type-caption);margin:1.4rem 0 0;line-height:1.5}.token-actions{margin-top:1rem}.context-controls{gap:.55rem;margin-block:1rem;display:grid}.context-controls p{color:var(--muted);font-size:var(--type-caption);margin:0;line-height:1.5}.reconsider-controls{align-items:center;margin-top:1rem}.reconsider-controls span{color:var(--muted);font-size:var(--type-caption);flex:100%}.chapter-transition{min-height:64svh;padding:var(--space-section) var(--layout-gutter);background:var(--paper);color:var(--ink);align-items:center;display:grid}.chapter-inner{width:100%;min-width:0;max-width:var(--container-article);margin:0 auto}.chapter-inner h2{max-width:780px;font-size:var(--type-chapter-title);letter-spacing:-.025em;overflow-wrap:break-word;margin:0;font-weight:470;line-height:1.04}.chapter-copy{max-width:var(--container-prose);color:var(--muted);font-size:var(--type-body);grid-template-columns:repeat(2,minmax(0,1fr));gap:3rem;margin:3rem 0 0 auto;line-height:1.6;display:grid}.chapter-copy p{margin:0}.prompt-visual{gap:1.35rem;min-height:440px}.fixed-context{border-radius:var(--radius-card);background:var(--surface-1);padding:1rem 1.1rem}.fixed-context span,.example-number,.panel-heading,.tradeoff-header{font-family:var(--sans);font-size:var(--type-caption);letter-spacing:0;text-transform:none;line-height:1.2}.fixed-context span{color:var(--muted);font-weight:560}.fixed-context p{font-size:var(--type-body);margin:.65rem 0 0;line-height:1.4}.active-canvas-label{margin-top:.25rem}.comparison-visual{min-height:420px}.parallel-panels{grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem;display:grid}.parallel-panel{border-radius:var(--radius-card);background:var(--surface-1);min-width:0;box-shadow:var(--shadow-card);padding:1rem}.diffusion-panel{border-color:var(--ink)}.panel-heading{color:var(--muted-light);justify-content:space-between;gap:1rem;display:flex}.panel-heading span:first-child{color:var(--ink)}.mini-token-row{flex-wrap:wrap;gap:.35rem;margin-top:2.4rem;display:flex}.mini-token-row>span{border-radius:var(--radius-control);white-space:nowrap;flex:1 0 auto;align-items:flex-end;height:84px;padding:.55rem .4rem;font-size:clamp(.72rem,.9vw,.9rem);display:flex}.mini-empty{color:var(--muted-light);box-shadow:inset 0 0 0 1px var(--hairline)}.mini-tentative{color:var(--accent);background:var(--surface-1);font-style:italic}.mini-resolved{color:var(--ink);background:var(--surface-1)}.stacked-scene{grid-template-rows:auto 1fr;grid-template-columns:1fr;align-content:center;gap:2.5rem}.stacked-scene .scene-copy{grid-template-columns:minmax(180px,.4fr) 1fr;align-items:end;gap:2rem;display:grid}.stacked-scene .scene-label{margin:0}.stacked-scene .scene-copy h2{max-width:720px;margin:0}.example-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem;display:grid}.example-card{border-radius:var(--radius-card);background:var(--surface-1);min-width:0;min-height:260px;box-shadow:var(--shadow-card);opacity:.55;transition:opacity var(--dur-base) var(--ease-standard), border-color var(--dur-base) var(--ease-standard), transform var(--dur-base) var(--ease-emphasized);flex-direction:column;padding:1.25rem;display:flex}.example-card.active{box-shadow:inset 0 0 0 1px var(--accent), var(--shadow-card);opacity:1;transform:translateY(-4px)}.example-number{color:var(--accent)}.example-card h3{font-size:var(--type-subsection);letter-spacing:-.015em;margin:1rem 0 1.5rem;font-weight:530;line-height:1.15}.example-tokens{flex-wrap:wrap;gap:.35rem;margin-top:auto;display:flex}.example-tokens span{border:1px solid var(--hairline);border-radius:var(--radius-control);background:var(--surface-1);font-size:var(--type-supporting);padding:.5rem .55rem}.example-tokens .example-active{border-color:var(--accent);color:var(--accent);font-style:italic}.fill-tokens{flex-wrap:nowrap}.why-tradeoffs{margin-top:3.5rem}.why-tradeoffs-intro{max-width:62ch;color:var(--muted);font-size:var(--type-body);margin:0 0 2rem;line-height:1.6}.story-flow{--canvas-height:380px;width:100%;max-width:calc(var(--container-article) + 2 * var(--layout-gutter));padding:0 var(--layout-gutter);grid-template-columns:minmax(240px,.82fr) minmax(520px,1.6fr);column-gap:clamp(3rem,8vw,9rem);margin:0 auto;display:grid;position:relative}.story-flow.general-flow{--canvas-height:430px}.story-flow:before{display:none}.story-flow{grid-template-rows:repeat(var(--scene-count,4), 88svh)}.story-flow .scene:first-child .scene-copy{grid-row:1}.story-flow .scene:nth-child(2) .scene-copy{grid-row:2}.story-flow .scene:nth-child(3) .scene-copy{grid-row:3}.story-flow .scene:nth-child(4) .scene-copy{grid-row:4}.story-flow .scene,.story-flow .scene-sticky{display:contents}.story-flow .scene-copy{flex-direction:column;grid-column:1;justify-content:center;min-height:88svh;padding-block:4rem;display:flex}.story-flow .visual,.story-flow .example-grid{z-index:1;top:max(calc(var(--bar-height,48px) + 1rem), calc((100svh - var(--canvas-height)) / 2));opacity:0;pointer-events:none;transition:opacity var(--dur-slow) var(--ease-standard);grid-area:1/2/-1;align-self:start;margin-block:0;position:sticky}.story-flow .scene.is-current .visual,.story-flow .scene.is-current .example-grid{z-index:2;opacity:1;pointer-events:auto}.story-flow .visual{height:auto;min-height:var(--canvas-height);border:1px solid color-mix(in srgb, var(--hairline) 84%, transparent);border-radius:var(--radius-card);background:linear-gradient(145deg, #ffffffd1, #f8f9fba8), var(--surface-0);max-height:none;box-shadow:0 1px 2px #161f2d06,0 12px 34px #161f2d0b,inset 0 1px #ffffffb8}.story-flow :is(.token-block,.parallel-panel,.example-card){box-shadow:none}.story-flow .token-block.active,.story-flow .example-card.active{box-shadow:inset 0 0 0 1px color-mix(in srgb, var(--ink) 32%, var(--line-soft))}.story-flow .stacked-scene .scene-copy{display:flex}.story-flow .stacked-scene .scene-label{margin-bottom:2rem}.story-flow .stacked-scene .scene-copy h2{max-width:430px}.story-flow .example-grid{border:1px solid color-mix(in srgb, var(--hairline) 84%, transparent);border-radius:var(--radius-card);background:linear-gradient(145deg, #ffffffd1, #f8f9fba8), var(--surface-0);align-content:center;min-height:390px;padding:1rem;box-shadow:0 1px 2px #161f2d06,0 12px 34px #161f2d0b,inset 0 1px #ffffffb8}.story-flow+.chapter-transition{margin-top:-1px}.static-inner{width:100%;max-width:var(--container-article);margin:0 auto}.static-heading-row{grid-template-columns:minmax(0,1.4fr) minmax(240px,.6fr);align-items:end;gap:4rem;margin-bottom:4rem;display:grid}.static-heading-row h2{max-width:680px;font-size:var(--type-section-title);letter-spacing:-.02em;margin:0;font-weight:510;line-height:1.1}.static-heading-row p{color:var(--muted);font-size:var(--type-body);margin:0;line-height:1.6}.tradeoff-table{display:grid}.tradeoff-row{border-radius:var(--radius-control);font-size:var(--type-supporting);grid-template-columns:.7fr 1fr 1fr;gap:2rem;padding:1.25rem 1rem;line-height:1.5;display:grid}.tradeoff-row+.tradeoff-row{border-top:1px solid var(--hairline)}.tradeoff-header{border-bottom:1px solid var(--ink)}.tradeoff-row strong{font-size:var(--type-supporting);font-weight:560}.tradeoff-row span{color:var(--muted)}.tradeoff-header span{color:var(--ink);font-weight:560}.references-section{padding:var(--space-section) var(--layout-gutter);background:var(--paper)}.references-heading-row{text-align:center;margin-bottom:4rem}.references-heading-row h2{font-size:var(--type-section-title);letter-spacing:-.02em;margin:0;font-weight:510;line-height:1.1}.references-heading-row p{color:var(--muted);font-size:var(--type-body);margin:0;line-height:1.6}.reference-list{counter-reset:references;width:fit-content;max-width:100%;margin:0 auto;padding:0;list-style:none}.reference-list li{counter-increment:references;padding-left:2.75rem;position:relative}.reference-list li+li{margin-top:1.15rem}.reference-list li:before{content:counter(references, decimal-leading-zero);color:var(--muted);font-family:var(--sans);font-size:var(--type-caption);letter-spacing:0;position:absolute;top:.1rem;left:0}.reference-list a{color:var(--ink);gap:.2rem;text-decoration:none;display:grid}.citation{width:min(100%, var(--measure-prose));border-top:1px solid var(--hairline);text-align:center;margin:3.5rem auto 0;padding-top:1.25rem}.citation h3{color:var(--muted-light);font-size:var(--type-caption);letter-spacing:0;margin:0 0 .6rem;font-weight:500}.citation pre{text-align:left;color:var(--muted);font-family:var(--mono);font-size:var(--type-caption);tab-size:2;margin:0;line-height:1.6;overflow-x:auto}.citation code{font-family:inherit}.citation-copy{font-size:var(--type-caption);margin-top:1rem}.reference-list a:hover .reference-title,.reference-list a:focus-visible .reference-title{text-underline-offset:.2em;text-decoration:underline}.reference-title{font-size:var(--type-body);text-decoration:underline;-webkit-text-decoration-color:color-mix(in srgb, currentColor 35%, transparent);text-decoration-color:color-mix(in srgb, currentColor 35%, transparent);text-underline-offset:.2em;font-weight:560;line-height:1.4}.reference-source{color:var(--muted);font-family:var(--sans);font-size:var(--type-caption);letter-spacing:0;text-transform:none}.conclusion{padding:var(--space-section) var(--layout-gutter);text-align:center;background:var(--paper);color:var(--ink);flex-direction:column;justify-content:center;align-items:center;display:flex}.conclusion-title{max-width:760px;font-family:var(--sans);font-size:var(--type-section-title);letter-spacing:-.02em;margin:0 0 1.5rem;font-weight:510;line-height:1.1}.context-flow{align-items:center;height:18px}.left-flow,.right-flow{background:var(--accent);opacity:.55;height:1px;position:relative}.left-flow{flex:10 1 0}.right-flow{flex:3 1 0}.left-flow:after,.right-flow:before{content:"";border-top:1px solid var(--accent);width:6px;height:6px;position:absolute;top:-3px}.left-flow:after{border-right:1px solid var(--accent);right:0;transform:rotate(45deg)}.right-flow:before{border-left:1px solid var(--accent);left:0;transform:rotate(-45deg)}@keyframes token-in{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}.token-swap{min-width:0;max-width:100%;line-height:inherit;vertical-align:baseline;display:inline-block;position:relative}.token-swap>span{display:block}.token-swap-outgoing{position:absolute;top:0;left:0}.token-swap[data-changing] .token-swap-outgoing{animation:token-swap-out .28s var(--ease-standard) both}.token-swap[data-changing] .token-swap-current{animation:token-swap-in .28s var(--ease-emphasized) both}.causal-before{animation:token-history-in .28s var(--ease-emphasized) both}@keyframes token-swap-out{0%{opacity:1;filter:blur();transform:translateY(0)}to{opacity:0;filter:blur(.45px);transform:translateY(-4px)}}@keyframes token-swap-in{0%{opacity:0;filter:blur(.45px);transform:translateY(4px)}to{opacity:1;filter:blur();transform:translateY(0)}}@keyframes token-history-in{0%{opacity:0;transform:translateY(2px)}to{opacity:1;transform:translateY(0)}}@media (width<=900px){.why-intro-layout{grid-template-columns:minmax(0,1fr) minmax(170px,.3fr);gap:2rem}.story-flow{padding-inline:var(--layout-gutter);grid-template-columns:minmax(180px,.7fr) minmax(0,1.3fr);column-gap:1.5rem}.story-flow .scene-copy{min-height:88svh;padding-block:3rem}.lab-workbench{grid-template-columns:1fr}.lab-token-grid{grid-template-columns:repeat(5,minmax(0,1fr))}.probability-inspector{grid-column:1;min-height:0}.probability-inspector h3{margin-top:1.4rem}.probability-inspector dl{grid-template-columns:repeat(3,1fr);display:grid}.probability-inspector dl div{padding-right:1rem}.scene-sticky{padding:3rem var(--layout-gutter);grid-template-rows:auto 1fr;grid-template-columns:1fr;align-content:center;gap:2.5rem}.scene-copy h2{max-width:640px}.scene-copy p{max-width:500px}.visual{min-height:300px}.diffusion-visual{min-height:330px}.slot{height:98px}.block-row{gap:.4rem}.block-token-grid .slot{height:92px;padding-inline:.25rem}.chapter-copy{margin-left:0}.parallel-panels{grid-template-columns:1fr}.comparison-visual{gap:1rem}.mini-token-row{margin-top:1.25rem}.stacked-scene .scene-copy{grid-template-columns:1fr}.example-card{min-height:220px}.static-heading-row{grid-template-columns:1fr;gap:2rem}.why-compare-grid{grid-template-columns:1fr}}@media (width<=520px){.comparison-toggle button{flex:45%}.lab-transport{z-index:4;background:var(--surface);padding:.6rem;position:sticky;bottom:0}.lab-section{padding:5rem var(--layout-gutter)}.lab-intro{grid-template-columns:1fr;gap:1.5rem;margin-bottom:2.5rem}.lab-workbench{grid-template-columns:1fr}.lab-controls{grid-template-columns:1fr;display:grid}.lab-token-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.lab-token-grid button{height:82px}.lab-token-grid button strong{font-size:.78rem}.lab-transport{flex-wrap:wrap}.lab-transport>span{width:100%;margin:.5rem 0 0}.probability-inspector dl{grid-template-columns:1fr}.story-flow{--canvas-height:320px;grid-template-columns:1fr;grid-template-rows:repeat(var(--scene-count,4), 100svh);padding-inline:var(--layout-gutter);display:grid}.story-flow:before{display:none}.story-flow .scene,.story-flow .scene-sticky{display:contents}.story-flow .scene-copy{min-height:100svh;padding:3.5rem 0 calc(var(--canvas-height) + 3rem);grid-column:1;justify-content:flex-start}.story-flow .visual,.story-flow .example-grid{top:calc(100svh - var(--canvas-height) - 1rem);height:var(--canvas-height);min-height:var(--canvas-height);max-height:var(--canvas-height);grid-area:1/1/-1;margin:0 0 1rem;position:sticky}.intro{justify-content:center;min-height:82svh;padding:4rem 1.5rem 6rem}.intro h1{letter-spacing:-.02em;font-size:clamp(2.25rem,8vw,2.75rem);line-height:1.02}.dek{margin-top:1.5rem}.scene{height:200svh}.scene-sticky{gap:1.75rem}.technical-note{margin-top:1.1rem;padding-top:.8rem}.technical-note code,.technical-note-math{font-size:.8rem}.scene-copy p{font-size:1.0625rem}.visual{min-height:250px;padding:1rem}.autoregressive-grid{gap:.35rem .55rem;font-size:1.25rem}.autoregressive-grid .token{writing-mode:horizontal-tb;transform:none}.autoregressive-line{font-size:1.85rem}.diffusion-visual{min-height:290px}.slot{height:86px;padding:.5rem .28rem .65rem}.slot-value{font-size:.78rem}.training-token{font-size:.75rem}.context-visual,.block-visual{min-height:290px}.token-block{padding:.28rem}.block-label{padding-bottom:.45rem;font-size:.8125rem}.block-label span:last-child{display:none}.block-token-grid .slot{height:78px;padding:.4rem .18rem .55rem}.chapter-transition{padding-inline:var(--layout-gutter)}.chapter-inner h2{line-height:1.08}.chapter-copy{grid-template-columns:1fr;gap:1.25rem;margin-top:2.5rem}.prompt-visual{min-height:360px}.fixed-context p{font-size:1.05rem}.parallel-panel{padding:.65rem}.panel-heading span:last-child{display:none}.mini-token-row>span{height:58px;padding:.35rem .2rem;font-size:.7rem}.example-grid{grid-template-columns:1fr;gap:.65rem}.example-card{min-height:150px;padding:1rem}.references-section{padding-block:6rem}.reference-list li{padding-left:2.25rem}.tradeoff-row{grid-template-columns:1fr 1fr;gap:.7rem 1rem}.tradeoff-row strong{grid-column:1/-1}.tradeoff-header span:first-child{display:none}.tradeoff-header{grid-template-columns:1fr 1fr}.why-diffusion-section{padding:4.5rem var(--layout-gutter) 5rem}.why-intro-layout{grid-template-columns:1fr}.why-particle-destination{width:170px}.race-track{height:220vh;margin-top:3rem}.race-intro{flex-direction:column;align-items:flex-start;gap:.35rem}.race-panels{max-width:100%}.race-pool{height:38px}.why-compare{margin-top:2.5rem;padding:1rem}.why-token{flex-basis:5rem;min-width:5rem}.why-transport>span{width:100%;margin:.25rem 0 0}.why-matters,.why-tradeoffs,.why-diffusion-transition{margin-top:2.5rem}.why-matters-list{grid-template-columns:1fr;gap:1.5rem}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}.particle-title{color:var(--ink)}.particle-title canvas,.particle-bridge{display:none}.why-particle-destination{background:var(--particle-resolved);border-radius:50%}.race-track{height:auto}.race-stage{min-height:0;position:static}.race-pool{display:none}}@media (prefers-reduced-transparency:reduce){.article-bar{background:var(--paper);-webkit-backdrop-filter:none;backdrop-filter:none}}@media (prefers-contrast:more){:root{--muted:#47453f;--muted-light:#625f57;--line:#77746b}.story-flow:before,.visual,.example-card{border-color:var(--ink)}}.lab-legend{color:var(--muted-light);font-family:var(--sans);font-size:var(--type-caption);margin:0;line-height:1.5}.lab-legend b{color:var(--muted);font-weight:560}.article-bar{z-index:12;background:color-mix(in srgb, var(--paper) 88%, transparent);-webkit-backdrop-filter:blur(16px)saturate(160%);backdrop-filter:blur(16px)saturate(160%);box-shadow:0 1px 0 color-mix(in srgb, var(--hairline) 72%, transparent);position:fixed;top:0;left:0;right:0}.article-bar-row{width:100%;max-width:var(--container-wide);padding:0 var(--layout-gutter);box-sizing:border-box;align-items:center;gap:clamp(1rem,3vw,2.5rem);margin:0 auto;display:flex}.article-bar-mark{color:var(--ink);font-family:var(--sans);font-size:var(--type-caption);letter-spacing:-.01em;flex:none;padding:.7rem 0;font-weight:560;text-decoration:none}.article-bar-current{min-width:0;color:var(--muted);font-family:var(--sans);font-size:var(--type-caption);text-align:center;text-overflow:ellipsis;white-space:nowrap;flex:auto;overflow:hidden}.article-bar nav{flex:none;position:relative}.article-bar nav details{position:relative}.article-bar nav summary{border-radius:var(--radius-control);min-height:44px;color:var(--ink);cursor:pointer;font-family:var(--sans);font-size:var(--type-caption);-webkit-user-select:none;user-select:none;transition:background-color var(--dur-fast) var(--ease-standard), color var(--dur-fast) var(--ease-standard);align-items:center;padding:0 .65rem;list-style:none;display:flex}.article-bar nav summary::-webkit-details-marker{display:none}.article-bar nav summary:hover{background:var(--surface-1)}.article-bar nav details[open] summary{background:var(--surface-2);color:var(--ink)}.article-bar nav ol{width:min(232px, calc(100vw - 2 * var(--layout-gutter)));border:1px solid color-mix(in srgb, #fff 72%, var(--hairline));background:color-mix(in srgb, var(--surface-0) 84%, transparent);-webkit-backdrop-filter:blur(28px)saturate(180%);backdrop-filter:blur(28px)saturate(180%);transform-origin:100% 0;animation:contents-in .16s var(--ease-emphasized) both;border-radius:16px;gap:.1rem;margin:0;padding:.35rem;list-style:none;display:grid;position:absolute;top:calc(100% + .5rem);right:0;box-shadow:0 2px 8px #161f2d0f,0 16px 44px #161f2d1f,inset 0 0 0 1px #ffffff61}@keyframes contents-in{0%{opacity:0;transform:translateY(-4px)scale(.985)}to{opacity:1;transform:translateY(0)scale(1)}}.article-bar nav a{border-radius:var(--radius-control);min-width:44px;min-height:44px;color:var(--muted);font-family:var(--sans);font-size:var(--type-caption);letter-spacing:0;white-space:nowrap;transition:color var(--dur-fast) var(--ease-standard), background-color var(--dur-fast) var(--ease-standard);align-items:center;padding:0 .8rem;line-height:1.2;text-decoration:none;display:flex}.article-bar nav a:hover{color:var(--ink);background:var(--surface-1)}.article-bar nav a.active{color:var(--ink);background:var(--surface-2);font-weight:400}.article-bar-value{color:var(--muted-light);font-family:var(--sans);font-size:var(--type-caption);font-variant-numeric:tabular-nums;flex:none}.article-bar-steps{transition:grid-template-rows var(--dur-slow) var(--ease-standard), border-color var(--dur-slow) var(--ease-standard);border-top:1px solid #0000;grid-template-rows:0fr;display:grid;overflow:hidden}.article-bar[data-chapter] .article-bar-steps{border-top-color:var(--hairline);grid-template-rows:1fr}.article-bar-steps>div{padding-block:.5rem}.article-bar-part{flex:none;align-items:center;gap:.5rem;margin:0;display:flex}.article-bar-part a{color:var(--ink);font-family:var(--sans);font-size:var(--type-caption);letter-spacing:-.01em;white-space:nowrap;font-weight:560;text-decoration:none}.phase-chip{border:1px solid var(--hairline);border-radius:var(--radius-control);color:var(--muted);letter-spacing:.06em;text-transform:uppercase;white-space:nowrap;padding:.2rem .42rem;font-size:.62rem;font-weight:560}.phase-chip.phase-generation{border-color:var(--ink);background:var(--ink);color:var(--paper)}.article-bar-stepper{flex-wrap:wrap;flex:auto;align-items:center;gap:.2rem clamp(.7rem,2vw,1.6rem);min-width:0;margin:0;padding:0;list-style:none;display:flex}.article-bar-stepper li{color:var(--muted-light);font-family:var(--sans);font-size:var(--type-caption);transition:color var(--dur-base) var(--ease-standard);align-items:baseline;gap:.4rem;line-height:1.3;display:flex}.article-bar-stepper li:not(.active){display:none}.article-bar-stepper b{border-radius:var(--radius-control);min-width:1.05em;color:var(--muted-light);text-align:center;padding:.05rem .25rem;font-size:.62rem;font-weight:580}.article-bar-stepper li.done,.article-bar-stepper li.done b{color:var(--muted)}.article-bar-stepper li.active{color:var(--ink)}.article-bar-stepper li.active b{background:var(--accent);color:var(--paper)}.article-bar-track{background:0 0;height:1px;overflow:hidden}.article-bar-track span{background:var(--muted-light);transform-origin:0;width:100%;height:100%;display:block}.part-band{padding:clamp(2.75rem, 5vh, 4rem) var(--layout-gutter) clamp(2rem, 4vh, 3rem);background:var(--paper);scroll-margin-top:6rem}.part-band-inner{width:100%;max-width:var(--container-article);margin:0 auto}.part-band-eyebrow{color:var(--accent);font-family:var(--sans);font-size:var(--type-supporting);align-items:center;gap:.65rem;margin:0 0 .85rem;font-weight:560;line-height:1.2;display:flex}.part-band-eyebrow b{border:1px solid var(--hairline);border-radius:var(--radius-control);color:var(--muted);font-size:var(--type-caption);letter-spacing:.06em;text-transform:uppercase;padding:.22rem .45rem;font-weight:560}.part-band h2{max-width:720px;color:var(--ink);font-family:var(--sans);font-size:var(--type-section-title);letter-spacing:-.02em;margin:0 0 .9rem;font-weight:510;line-height:1.1}.part-band-lede{max-width:var(--container-prose);color:var(--muted);font-size:var(--type-deck);text-wrap:pretty;margin:0;line-height:1.5}.part-band-steps{border-top:1px solid var(--hairline);flex-wrap:wrap;gap:.5rem clamp(1.5rem,4vw,3rem);margin:1.6rem 0 0;padding:1.1rem 0 0;list-style:none;display:none}.part-band-steps li{color:var(--muted);font-family:var(--sans);font-size:var(--type-supporting);align-items:baseline;gap:.5rem;line-height:1.3;display:flex}.part-band-steps b{color:var(--accent);font-weight:580}@media (height<=540px){.article-bar-steps{display:none}.part-band-steps{display:flex}}main{padding-top:var(--bar-base,48px)}.inspector-verdict{min-height:6.2em;margin-bottom:0}:is(.scene-label,.technical-note>span,.why-now-disclosure summary,.why-now-disclosure dt,.lab-controls b,.lab-token-grid button>span,.inspector-heading strong,.fixed-context span,.tradeoff-row strong,.tradeoff-header span,.reference-title,.article-bar-mark,.article-bar nav a.active,.article-bar-part a,.part-band-eyebrow,.part-band-steps b,.lab-legend b){font-weight:500}.recovery-scene .causal-cell{color:var(--ink)}.recovery-scene .causal-cell.is-survivor{background:color-mix(in srgb, var(--surface-2) 72%, transparent);border-style:solid}.recovery-scene .why-readout{border-top-color:color-mix(in srgb, var(--hairline) 72%, transparent)}@media (width<=900px){.classifier-guidance-intro{grid-template-columns:1fr;gap:1.25rem}.classifier-guidance-intro p{max-width:var(--measure-prose)}}@media (width<=520px){.classifier-guidance-section{padding-inline:var(--layout-gutter)}.guidance-timeline{width:100%;padding-right:var(--layout-gutter);scroll-padding-inline:.75rem}.guidance-trajectory{--guidance-state-width:120px;--guidance-link-width:28px;justify-content:flex-start;min-width:max-content;min-height:350px;padding-left:.75rem}.guidance-state-button{min-height:138px}.guidance-vectors{width:108px}.guidance-output-node{flex-basis:176px}.guidance-exchange{width:280px;min-height:198px}.guidance-annotation{grid-template-columns:1fr;gap:.35rem;min-height:7.5rem}.guidance-controls{grid-template-columns:auto minmax(90px,1fr) auto}.guidance-controls output{grid-area:2/1/auto/-1;justify-self:center}.guidance-controls button:last-child{grid-area:1/3}}