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@media(max-width:600px){.toolbar{margin:10px auto;gap:5px;padding:0 10px;font-size:12px}.toolbar strong{display:none}.toolbar button,.toolbar a{padding:8px 11px}.toolbar a{margin-left:auto}.reader{margin-bottom:0}.reader section,.intro,.human{padding:25px 21px}.reader h1{font-size:26px}.reader h2{font-size:23px}.hero{float:none;width:calc(100% + 42px);margin:-25px -21px 8px}.brand{position:relative;z-index:1;font-size:36px;margin-bottom:-40px}.features{grid-template-columns:1fr;gap:26px}.feature h3{font-size:21px}.feature p{font-size:15px}.feature .muted{font-size:12px}.dual{gap:8px}.learning{padding:15px 12px}.node{padding:11px 12px}.node strong{font-size:13px}.node p{font-size:11px}.generations{gap:14px}.generations .node{padding:10px 6px;text-align:center}.generations .node:not(:last-child):after{right:-13px}.worlds{grid-template-columns:1fr;gap:20px}.worlds .node:not(:last-child):after{content:"↕";right:50%;top:auto;bottom:-22px}.world-close{padding:25px 21px}.source-grid{grid-template-columns:1fr}.human img{width:calc(100% + 42px);margin:0 -21px}.economy-loop{grid-template-columns:1fr}.reader .status{font-size:11px}.section-nav a{font-size:12px}}
@media print{@page{size:1080pt 2075pt;margin:0}body{background:white}.toolbar,.section-nav,.reader,.footnote{display:none!important}.poster,.reading .poster{display:block!important;margin:0;max-width:none;box-shadow:none;width:1080pt;height:2075pt}}
.hero,.human img{mask-mode:luminance}.keep{display:inline-block}