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@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important}}
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/* Chapter reading: one shared navigation, natural scrolling inside tall pages. */
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  .chapter-mode .site-header{gap:24px;padding-block:14px;min-height:82px}
  .chapter-mode .header-nav{display:flex;gap:20px;align-items:center;margin-inline:auto;min-width:0}
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  .chapter-mode .header-nav a::after{content:'';position:absolute;bottom:2px;left:0;right:0;height:2px;background:#526348;transform:scaleX(0);transform-origin:left;transition:transform .3s}
  .chapter-mode .header-nav a[aria-current]{color:#354b2e}
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  .chapter-mode .resume-section{align-content:center;align-items:start;padding-block:56px 90px;gap:32px 42px}
  .chapter-mode .chapter-controls{grid-column:1 / -1;display:flex;align-items:center;justify-content:space-between;gap:20px;align-self:end;font-size:11px;color:#626e57;letter-spacing:.04em;margin-top:26px}
  .chapter-mode .hero>.chapter-controls{position:absolute;bottom:28px;left:0;right:0}
  .chapter-controls a{min-height:44px;display:flex;align-items:center;gap:8px;text-underline-offset:5px}
  .chapter-count{font:italic 12px Georgia,var(--serif);color:#7c8472;white-space:nowrap;margin-right:auto}
  .chapter-controls a+.chapter-count{margin-right:0}
  .chapter-mode .site-footer{scroll-snap-align:end;scroll-margin-top:0}
}
@media screen and (max-width:1200px){
  .chapter-mode .site-header{display:grid;grid-template-columns:1fr auto;gap:4px 20px;padding:12px 24px 4px}
  .chapter-mode .header-actions{grid-column:2;grid-row:1;margin-left:0}
  .chapter-mode .header-nav{grid-column:1 / -1;grid-row:2;width:100%;justify-content:center;gap:32px;margin:0}
  .chapter-mode .header-nav a{min-height:42px}
}
@media screen and (max-width:800px){
  .chapter-mode .resume-section{grid-template-columns:1fr;gap:28px;padding-block:38px 44px}
  .chapter-mode .hero{padding-block:42px 92px}
  .chapter-mode .hero-photo{align-self:center;padding-top:0}
  .chapter-mode .header-nav{justify-content:flex-start;gap:25px;overflow-x:auto;overscroll-behavior-x:contain;scrollbar-width:thin;scrollbar-color:#c8cebd transparent}
  .chapter-mode .header-nav a{flex:none;font-size:11px}
}
@media screen and (max-width:560px){
  .chapter-mode .site-header{padding:9px 20px 3px;gap:2px 12px}
  .chapter-mode .header-actions{gap:10px}
  .chapter-mode .header-nav{gap:20px}
  .chapter-mode .header-nav a{font-size:11px;gap:5px;min-height:40px}
  .chapter-mode .header-nav a>span{font-size:10px}
  .chapter-mode .hero{align-content:center;row-gap:18px;padding-block:32px 88px}
  .chapter-mode .resume-section{padding-block:32px 36px;gap:25px}
  .chapter-mode .chapter-controls{gap:12px;font-size:10px;letter-spacing:0;margin-top:18px;flex-wrap:wrap}
  .chapter-count{font-size:11px}
}
@media screen and (prefers-reduced-motion:reduce){html.chapter-mode{scroll-behavior:auto;scroll-snap-type:y proximity}}

/* A4 identity block: QR beside the original portrait, with its quiet zone intact. */
.paper-header-media{display:flex;align-items:flex-start;gap:3mm;flex:none}
.paper-qr{display:flex;flex-direction:column;align-items:center;width:23mm;flex:none;text-decoration:none!important;color:#111}
.paper-qr img{display:block;width:23mm;height:23mm;max-width:none;background:#fff;image-rendering:pixelated;print-color-adjust:exact;-webkit-print-color-adjust:exact}
.paper-qr span{font:7pt/1.6 var(--serif);white-space:nowrap;margin-top:1mm}
@media screen and (max-width:560px){.paper-header-media{width:28%;gap:2vw}.paper-header-media .paper-photo{width:calc(50% - 1vw);height:auto}.paper-qr{width:calc(50% - 1vw)}.paper-qr img{width:100%;height:auto}.paper-qr span{font-size:5px;margin-top:2px}}