.px-world{--px-ink:#142333;--px-paper:#f2f6ef;--px-teal:#076b67;--px-line:#b7c9bb;color:var(--px-ink);font:17px/1.65 system-ui,sans-serif;box-sizing:border-box}.px-world *{box-sizing:border-box}.px-world a{color:#075c61;text-underline-offset:3px}.px-world a:hover{color:#9c3c16}.px-world :focus-visible{outline:3px solid #b74410;outline-offset:4px}.px-world h1,.px-world h2,.px-world h3{font-family:system-ui,sans-serif;line-height:1.15;letter-spacing:-.035em;color:var(--px-ink)}.px-world h1{font-size:clamp(2.4rem,5vw,4.4rem);max-width:900px}.px-world h2{font-size:clamp(1.65rem,3vw,2.3rem);margin-top:2.3rem}.px-world h3{font-size:1.25rem}.px-eyebrow{font:700 .75rem/1.5 ui-monospace,monospace;letter-spacing:.11em;color:var(--px-teal)}.px-hero{background:#142333;color:#f2f6ef;padding:clamp(22px,4vw,48px);border-bottom:8px solid #f6ba51}.px-hero h1,.px-hero .px-eyebrow{color:#f2f6ef}.px-hero p{max-width:760px}.px-hero a{color:#a6e6d7}.px-hero img{width:100%;height:auto;max-height:300px;object-fit:cover;margin-top:1rem;border:1px solid #54736a}.px-lead{font-size:1.2rem}.px-meta{font: .85rem ui-monospace,monospace}.px-prose{max-width:790px;margin:2rem auto}.px-note{border-left:5px solid #d28a28;background:#fff6de;padding:18px 22px}.px-jump{display:flex;flex-wrap:wrap;gap:8px;margin:20px 0}.px-jump a{padding:6px 12px;border:1px solid var(--px-line);text-decoration:none;background:white}.px-stop{scroll-margin-top:30px;border-top:1px solid var(--px-line);padding-top:1rem;margin-top:2.4rem}.px-year{font:bold .9rem ui-monospace,monospace;color:var(--px-teal)}.px-controls{display:flex;gap:12px;flex-wrap:wrap;align-items:end;margin:1rem 0}.px-controls label{display:flex;flex-direction:column;gap:4px;font-size:.85rem;font-weight:650;flex:1;min-width:150px}.px-world input,.px-world select,.px-world button{font:inherit;color:var(--px-ink);background:white;border:1px solid #6b887e;border-radius:3px;min-height:44px;padding:9px 12px;max-width:100%}.px-world button{cursor:pointer;font-weight:650}.px-world button:hover{background:#dcefe5}.px-count{font:.85rem ui-monospace,monospace}.px-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,230px),1fr));gap:16px}.px-card{border:1px solid var(--px-line);background:white;position:relative;transition:transform .16s,box-shadow .16s;overflow:hidden}.px-card:hover{transform:translateY(-3px);box-shadow:5px 5px 0 #cfe2d6}.px-card[hidden]{display:none}.px-card>a{display:block;height:100%;text-decoration:none;padding:16px}.px-card img{display:block;width:calc(100% + 32px);max-width:none;margin:-16px -16px 14px;aspect-ratio:2/1;object-fit:cover}.px-card h3{margin:8px 0}.px-card p{font-size:.9rem;color:#344c53;margin:8px 0}.px-card small{font:.72rem ui-monospace,monospace;text-transform:uppercase;color:#075c61}.px-card[aria-current=true]{border:3px solid #b74410}.px-card[aria-current=true]:after{content:'YOU ARE HERE';position:absolute;right:6px;top:6px;background:#fff6de;color:#743207;font:700 .65rem ui-monospace;padding:4px}.px-demo{background:#142333;color:#f2f6ef;padding:24px;margin:2rem 0}.px-demo h2{color:#f2f6ef;margin-top:0}.px-demo canvas{display:block;width:100%;height:auto;image-rendering:pixelated;border:2px solid #91b6a9;margin:1rem 0}.px-demo .px-controls label{color:#f2f6ef}.px-demo a{color:#a6e6d7}.px-demo output{font:.85rem ui-monospace,monospace}.px-embedded{background:var(--px-paper);border-top:5px solid var(--px-teal);padding:24px;margin:3rem 0}.px-embedded h2{margin:.5rem 0}.px-embedded summary{cursor:pointer;font-weight:700;min-height:44px;padding:10px 0}.px-embedded .px-grid{max-height:660px;overflow:auto;padding:4px}.px-sources li{margin-bottom:.7rem}.px-empty{padding:20px;border:1px dashed #6b887e}.px-world [hidden]{display:none!important}@media(max-width:600px){.px-hero{padding:22px 16px}.px-world{font-size:16px}.px-controls>*{width:100%}.px-embedded{padding:18px 12px}.px-prose{padding:0 4px}.px-demo{padding:18px 12px}}@media(prefers-reduced-motion:reduce){.px-card{transition:none}.px-card:hover{transform:none}}@media print{.px-controls,.px-demo,.px-embedded{display:none}.px-card{break-inside:avoid}}
.px-grid.px-timeline{display:flex;flex-direction:column;border-left:3px solid #2e6f64;margin-left:12px;padding-left:24px;gap:24px;overflow:visible}.px-timeline .px-card{overflow:visible;max-width:850px}.px-timeline .px-card:before{content:"";position:absolute;width:14px;height:14px;background:#f6ba51;border:3px solid #2e6f64;left:-33px;top:24px}.px-timeline .px-card>a{min-height:150px}.px-timeline .px-card img{float:right;width:180px;height:120px;aspect-ratio:auto;margin:0 0 12px 16px}.px-timeline .px-card small{font-weight:700}.px-world button[aria-pressed=true]{background:#cde8db;border-color:#075c61}.px-embedded .px-grid.px-timeline{max-height:660px;overflow:auto;padding-left:24px}@media(max-width:600px){.px-timeline .px-card img{float:none;width:100%;height:130px;margin:0 0 12px}.px-grid.px-timeline{padding-left:18px}.px-timeline .px-card:before{left:-27px}}
.penny-shell .px-world h1,.penny-shell .px-world h2,.penny-shell .px-world h3{font-family:system-ui,sans-serif;font-weight:700;color:var(--px-ink);line-height:1.15}.penny-shell .px-world .px-hero h1,.penny-shell .px-world .px-demo h2{color:#f2f6ef}.penny-shell .px-world h2{margin-top:2.3rem}.penny-shell .px-world .px-demo h2{margin-top:0}.penny-shell .px-world h3{font-size:1.25rem;margin:8px 0}.penny-shell .px-world a{color:#075c61}.penny-shell .px-world .px-hero a,.penny-shell .px-world .px-demo a{color:#a6e6d7}.penny-shell .px-world .px-card>a{text-decoration:none}.penny-shell .px-world .px-card img{height:auto;aspect-ratio:2/1;object-fit:cover}.penny-shell .px-world .px-timeline .px-card img{height:120px;aspect-ratio:auto}.penny-shell .px-world .px-eyebrow{font:700 .75rem/1.5 ui-monospace,monospace}.penny-shell .px-world .px-card p{font-size:.9rem;margin:8px 0}.penny-shell .px-world .px-card small{font-size:.72rem}@media(max-width:600px){.penny-shell .px-world .px-timeline .px-card img{height:130px}}
.px-world .px-grid:not(.px-timeline) .px-card img{height:auto}@media(max-width:600px){.px-world .px-controls label{flex-basis:100%}}

.px-world .px-chapter-art{margin:28px 0 12px;background:#e7eee5;border:1px solid #b7c9bb}
.px-world .px-chapter-art img{display:block;width:100%;height:auto;margin:0;max-height:none;object-fit:contain}
.px-world .px-chapter-art figcaption{padding:14px 18px;font:14px/1.6 system-ui,sans-serif;color:#344c53}
.px-world .px-chapter-art figcaption a{font-weight:700}
.px-world .px-lab-intro{margin:3rem 0 1rem;border-top:5px solid #076b67;padding-top:20px}
.px-world .px-demo .px-eyebrow{color:#a6e6d7}
.px-world .px-demo h3,.penny-shell .px-world .px-demo h3{color:#f2f6ef;font-size:clamp(1.5rem,3vw,2rem);margin:8px 0 18px}
.px-world .px-demo p{font:16px/1.65 system-ui,sans-serif;color:#e0ebe6}
.px-world .px-demo .px-try{border-left:3px solid #f6ba51;padding-left:16px;color:#ffe4ac}
.px-world .px-demo canvas{max-width:800px;margin:20px auto}
.px-world .px-demo output{display:block;min-height:3em;color:#d0e9dd;line-height:1.7}
.px-world .px-demo input[type=checkbox]{min-height:20px;width:20px;height:20px;vertical-align:middle;accent-color:#076b67}
.px-world .px-demo input[type=range]{padding:0;accent-color:#076b67}
.px-world .px-frame-buttons{display:flex;flex-wrap:wrap;gap:6px;margin:16px 0}
.px-world .px-frame-buttons button{min-width:44px;padding:8px}
.px-world .px-demo .px-controls{gap:12px;align-items:end}
.px-world .px-lab-intro .px-jump a{font-size:14px}
@media(max-width:600px){.px-world .px-frame-buttons button{flex:1;min-width:44px}.px-world .px-chapter-art figcaption{padding:12px}.px-world .px-demo{margin:24px 0}}