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/* Touch feedback follows the finger without intercepting swipes or taps. */
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/* Monochrome presentation: neutral imagery, controls, and legacy content. */
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::selection{background:#eeeeee;color:#080808}
img,video,.book-page-cover-fallback{filter:grayscale(1)}
.lt-scene img,.lt-scene video,.lt-hero__media img,.lt-fnx-hero img,.lt-fnx-hero video,.page-main img,.site-main img{filter:grayscale(1)}
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body .inquiry-note,body .settings-note{background:#ffffff0d;border-color:#ffffff40;color:#dedede}
input,textarea,select{accent-color:#e8e8e8}
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#primary [style^="border-bottom:2px solid #b6c8bb;"],#primary [style*=";border-bottom:2px solid #b6c8bb;"],#primary [style$=";border-bottom:2px solid #b6c8bb"],#primary [style^=" border-bottom:2px solid #b6c8bb;"],#primary [style*="; border-bottom:2px solid #b6c8bb;"],#primary [style$="; border-bottom:2px solid #b6c8bb"],#primary [style="border-bottom:2px solid #b6c8bb"]{border-bottom:2px solid #c3c3c3!important}
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/* Neutralize the published archive label and cursor artwork. */
#primary [style*="color:#496350"]{color:#cccccc!important}
.lt-scroll-cursor.is-control{filter:grayscale(1)}

/* The Rise of the Machine cover retains its original full-color artwork. */
#primary .book-cover-img{filter:none}

/* Site creation credit. */
.lt-footer-credit{margin:10px 0 0;color:#b2b2b2;font:400 10px/1.5 Inter,system-ui,sans-serif}.lt-site-footer .lt-footer-credit{grid-column:1/-1;margin:0}.lt-bottom-meta{min-width:0}.lt-bottom-meta .lt-bottom-links{flex-wrap:wrap;row-gap:8px}

/* Enhanced chapters occupy one stage; only their imagery and copy transition. */
body.home.lt-stage-ready{height:100svh;height:100dvh;overflow:hidden;overscroll-behavior-y:none}
.lt-stage-ready .lt-chapters{position:relative;height:100svh;height:100dvh;overflow:hidden;scroll-snap-type:none;isolation:isolate}
.lt-stage-ready .lt-chapter{position:absolute;inset:0;height:100%;min-height:0;visibility:hidden;opacity:0;pointer-events:none;scroll-snap-align:none;z-index:0}
.lt-stage-ready .lt-chapter.is-active,.lt-stage-ready .lt-chapter.is-leaving{visibility:visible;opacity:1}
.lt-stage-ready .lt-chapter.is-active{pointer-events:auto;z-index:1}
.lt-stage-ready .lt-chapter.is-leaving{z-index:2}
.lt-stage-ready .lt-chapter.is-entering{z-index:3}
.lt-stage-ready .lt-copy{overscroll-behavior-y:contain;scroll-behavior:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none}
.lt-stage-ready .lt-copy::-webkit-scrollbar{display:none;width:0;height:0}
.lt-stage-ready .lt-scene{transform-origin:75% 50%}
.lt-stage-ready .lt-scene img{transform:none;transition:none}
.lt-stage-ready .lt-scene video{opacity:0;transition:opacity .35s ease}
.lt-stage-ready .lt-scene video.is-playing{opacity:1}
.lt-stage-ready .is-transitioning .lt-scene,.lt-stage-ready .is-transitioning .lt-copy>*,.lt-stage-ready .is-entering{will-change:transform,opacity}
@media(max-width:700px){
  .lt-stage-ready .lt-chapter{padding:135px 24px 128px;align-items:flex-end}
  .lt-stage-ready .lt-scene{height:100%}
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  .lt-stage-ready .lt-chapter:after{background:linear-gradient(0deg,#080808 6%,#080808e8 29%,#08080899 52%,#08080811 78%)}
  .lt-stage-ready .lt-copy,.lt-stage-ready .lt-chapter--intro .lt-copy{max-height:min(54svh,calc(100svh - 260px));overflow-y:auto;padding:2px 10px 4px 0}
  .lt-stage-ready .lt-copy h1,.lt-stage-ready .lt-copy h2{font-size:clamp(42px,11.5vw,58px)}
  .lt-stage-ready .lt-chapter--intro h1{font-size:clamp(56px,16vw,76px)}
  .lt-stage-ready .lt-bottom{position:fixed;left:0;right:0;bottom:0;padding:14px 16px calc(14px + env(safe-area-inset-bottom,0px));display:flex;gap:12px;align-items:flex-end;background:linear-gradient(transparent,#080808 20%);font-size:9px}
  .lt-stage-ready .lt-bottom-meta{flex:1}
  .lt-stage-ready .lt-bottom-links{gap:8px 12px}
  .lt-stage-ready .lt-footer-credit{font-size:9px;margin-top:10px}
  .lt-stage-ready .lt-controls{display:flex;gap:8px;flex-shrink:0}
  .lt-stage-ready .lt-round{width:40px;height:40px}
  .lt-stage-ready .lt-progress{display:none}
  .lt-stage-ready .lt-motion-toggle{position:static;min-height:0;padding:0;background:none;border:0;border-bottom:1px solid #80808066;border-radius:0;font:inherit;box-shadow:none}
  .home.lt-stage-ready .lt-ai-chat{bottom:112px;right:16px}
}
@media(max-height:600px) and (min-width:701px){
  .lt-stage-ready .lt-chapter{padding-top:95px;padding-bottom:100px}
  .lt-stage-ready .lt-copy{max-height:calc(100dvh - 195px)}
}
@media(prefers-reduced-motion:reduce){
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  .lt-stage-ready .lt-scene video{transition:none}
}