/* Spatial Edition: the analytical page stays readable without a GPU. */
[hidden]{display:none!important}.spatial-badge{display:inline-block;width:6px;height:6px;transform:rotate(45deg);background:var(--blue);margin-right:8px}.hero-cta{display:flex;align-items:center;gap:22px;flex-wrap:wrap}.secondary-link{font-size:11px;margin-top:30px;color:#4f5965}.hero-grid{grid-template-columns:.95fr 1.12fr;gap:24px}.spatial-hero{align-self:stretch;display:flex;flex-direction:column;justify-content:center;min-width:0}.spatial-hero #hero-scene{height:420px;margin:0 -20px}.spatial-hero .hero-equation{font-size:16px;margin:20px 0 17px}.spatial-hero .visual-caption{font-size:11px}.hero-scene-controls{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:0 8px}.scene-segments{display:inline-flex;background:transparent;border:1px solid #c2c9d2;padding:3px;gap:2px}.scene-segments button{border:0;background:transparent;font-size:10px;padding:8px 13px;color:#4c5560;white-space:nowrap;transition:background .2s,color .2s}.scene-segments button.active{background:#0c2a4a;color:#ffffff}.hero-scene-controls .scene-segments button.active{background:var(--blue);color:#fff}.scene-icon-button{background:transparent;border:1px solid #c2c9d2;width:31px;height:31px;font:18px var(--mono);line-height:1;color:#4c5560}.scene-reset{background:transparent;border:0;font-size:10px;padding:8px 0;color:#4c5560;white-space:nowrap}.scene-icon-button:hover,.scene-reset:hover{color:var(--blue)}.spatial-status{color:var(--blue)!important}.surface-scene{position:relative;isolation:isolate;overflow:hidden}.surface-scene canvas{display:block!important;max-width:100%;touch-action:pan-y}.surface-scene .scene-label{position:absolute;pointer-events:none;font:10px var(--mono);color:#3c434d;white-space:nowrap}.scene-status-message{position:absolute;left:15px;right:15px;bottom:18px;z-index:3;background:var(--paper);border:1px solid var(--line);padding:14px;font-size:12px;line-height:1.7}.scene-status-message button{margin-top:8px}.chapter-rail{gap:33px}.spatial-section{border-bottom:1px solid #ced4dc;background:linear-gradient(180deg,#ffffff 0%,#f7f8fa 100%);padding-bottom:80px}.spatial-section .section-intro{margin-bottom:30px}.spatial-story{display:grid;grid-template-columns:1.22fr 1fr;gap:70px;align-items:start}.spatial-sticky{position:sticky;top:83px;padding-top:23px}.spatial-console{background:#ffffff;border:1px solid #c6ccd5;box-shadow:0 18px 35px -30px #0c2a4a40;padding:23px 24px 18px}.console-top{display:flex;justify-content:space-between;align-items:center}.console-top .eyebrow{font-size:8px;color:#1a5296;letter-spacing:.08em}.console-stage{font:9px var(--mono);color:#4c5560}.scene-caption-row{display:flex;align-items:center;justify-content:space-between;margin-top:18px}.scene-caption-row h3{font-size:20px;font-weight:500;letter-spacing:-.045em}.scene-unit{font:8px var(--mono);letter-spacing:.02em;color:#5d6877}.spatial-console #surface-lab-scene{height:350px;margin:3px -17px 0}.scene-toolbar{display:flex;align-items:center;justify-content:space-between;border-top:1px solid #ced4db;padding-top:15px;gap:15px}.scene-toolbar .scene-segments{border:0;padding:0;background:#e2e5ea}.scene-toolbar .scene-segments button{font-size:10px;padding:7px 13px}.scene-legend{display:flex;gap:12px;flex-wrap:wrap;font-size:9px;margin-top:18px;color:#525c69;line-height:1.6}.scene-legend .legend-dot{width:5px;height:5px;margin-right:5px}.legend-line{display:inline-block;width:13px;height:1px;background:var(--blue);vertical-align:3px;margin-right:5px}.legend-line.residual{background:#d9822b}.scene-parameters{display:grid;grid-template-columns:1fr 1fr;gap:25px;margin-top:22px;border-top:1px solid #d4d9e0;padding-top:16px}.scene-parameters label{display:grid;grid-template-columns:1fr auto;gap:8px;font-size:10px;color:#4c5560;line-height:1.5}.scene-parameters label b{font-family:AtlasSerif,serif;font-weight:400;margin-left:3px}.scene-parameters input{grid-column:1/-1;margin:0;width:100%;height:15px}.scene-parameters output{font:10px var(--mono);color:var(--blue)}.scene-insight{font-size:11px;color:#4d5662;line-height:1.75;margin-top:19px;min-height:39px}.spatial-footnote{font-size:10px;line-height:1.85;color:#515b67;margin:14px 2px 0;max-width:590px}.spatial-step{min-height:790px;padding:100px 0;display:flex;flex-direction:column;justify-content:center;gap:25px}.spatial-step h3{font-size:31px;letter-spacing:-.05em;line-height:1.42;font-weight:550}.spatial-step p{font-size:14px;color:#4d5763;line-height:1.95}.spatial-step>[data-tex]{font-size:17px;padding:22px 10px;background:#f3f5f8;border-left:2px solid #1a5296;overflow-x:auto}.spatial-step .chapter-index{color:#5a6778}.spatial-step.active .chapter-index{color:var(--blue)}.spatial-prompt{border-top:1px solid #bfc7d1;padding-top:19px;font-size:11px;line-height:1.9;color:#4d5662}.spatial-prompt span{display:block;font:8px var(--mono);letter-spacing:.08em;color:var(--blue);margin-bottom:10px}.scene-fallback p{font-size:11px;line-height:1.8;color:#505965;margin-bottom:15px}.scene-fallback .fallback-figure{height:300px;overflow:hidden}.scene-fallback .fallback-figure svg{width:100%;height:100%}.lineage-view-toolbar{display:flex;justify-content:space-between;align-items:center;margin:28px 0 20px}.lineage-view-toolbar .scene-segments{border-color:#b5beca}.lineage-view-toolbar .scene-segments button{font-size:11px}.lineage-view-toolbar .scene-segments button span{margin-left:7px}.lineage-view-toolbar .scene-segments button.active{background:#0c2a4a}.lineage-view-toolbar .scene-reset{font-size:11px}#lineage-spatial{height:540px;position:relative;border:1px solid #b3bcc8;background:#f7f8fa;margin-top:20px;overflow:hidden}#lineage-space-note{margin:16px 0 12px}#lineage-fallback-message{padding:10px 15px;background:#dce0e5}.spatial-hero .scene-error{font-size:12px}
@media(min-width:1500px){.spatial-hero #hero-scene{height:480px}.spatial-console #surface-lab-scene{height:410px}.spatial-step{min-height:890px}}
@media(max-width:1100px){.spatial-story{gap:35px;grid-template-columns:1.2fr 1fr}.spatial-sticky{top:80px}.spatial-console{padding:19px 18px}.spatial-console #surface-lab-scene{height:315px}.scene-caption-row{align-items:flex-start;gap:15px}.scene-caption-row h3{font-size:18px}.scene-unit{font-size:7px;padding-top:5px}.scene-segments button{padding:7px 10px}.scene-parameters{gap:14px}.spatial-step h3{font-size:27px}.spatial-step>[data-tex]{font-size:14px}.chapter-rail{gap:25px}.hero h1{font-size:49px}}
@media(max-width:800px){.hero-grid{grid-template-columns:1fr}.spatial-hero #hero-scene{height:410px;margin:0 -8px}.hero-cta{gap:20px}.hero h1{font-size:clamp(40px,7.6vw,61px)}.chapter-rail{gap:25px}.spatial-story{grid-template-columns:1fr;gap:25px}.spatial-sticky{position:sticky;top:61px;padding:0;z-index:12}.spatial-console{padding:13px 17px;box-shadow:0 7px 18px #0c2a4a15}.console-top{margin-bottom:0}.scene-caption-row{margin-top:9px}.scene-caption-row h3{font-size:16px}.spatial-console #surface-lab-scene{height:240px;margin-top:0}.scene-toolbar{padding-top:8px}.scene-legend{display:none}.scene-parameters{margin-top:10px;padding-top:10px;gap:20px}.scene-parameters label{font-size:9px;gap:5px}.scene-parameters input{height:13px}.scene-insight{font-size:10px;margin-top:9px;min-height:0}.scene-segments button{font-size:9px;padding:6px 10px}.scene-toolbar .scene-segments button{font-size:9px;padding:6px 10px}.scene-reset{font-size:9px}.spatial-footnote{display:none}.spatial-step{min-height:1000px;padding:540px 0 45px;justify-content:flex-start;gap:20px}.spatial-step:first-child{padding-top:25px;min-height:530px}.spatial-step h3{font-size:28px}.spatial-step p{font-size:14px}.spatial-step>[data-tex]{font-size:16px}.scene-fallback .fallback-figure{height:180px}#lineage-spatial{height:570px}.spatial-section .section-intro{margin-bottom:35px}}
@media(max-width:520px){.spatial-hero #hero-scene{height:310px}.hero-scene-controls{padding:0}.hero-scene-controls .scene-segments button{font-size:9px;padding:8px 11px}.hero-cta{gap:18px}.secondary-link{font-size:10px}.spatial-hero .hero-equation{font-size:15px}.hero h1{font-size:40px}.hero-topline .eyebrow{font-size:8px;letter-spacing:.055em}.spatial-console{padding:12px 13px}.spatial-console #surface-lab-scene{height:205px;margin-inline:-7px}.console-top .eyebrow{font-size:7px}.scene-caption-row{margin-top:8px}.scene-unit{font-size:7px}.scene-caption-row h3{font-size:15px}.scene-toolbar .scene-segments button{padding:5px 8px}.scene-parameters{gap:15px}.scene-parameters label{font-size:8px}.scene-insight{font-size:9px;line-height:1.65}.spatial-step{padding-top:460px;min-height:930px}.spatial-step:first-child{padding-top:20px;min-height:500px}.spatial-sticky{top:62px}.spatial-step>[data-tex]{font-size:14px}.lineage-view-toolbar{gap:12px}.lineage-view-toolbar .scene-segments button{font-size:10px;padding:8px 10px}.lineage-view-toolbar .scene-reset{font-size:9px}}
.spatial-hero .hero-equation .katex-display{overflow:visible}
@media(prefers-reduced-motion:reduce){.scene-segments button{transition:none}}