:root{--bg-0: #0b0e09;--bg-1: #12160f;--ink: #e8ece4;--muted: rgba(232, 236, 228, .58);--faint: rgba(232, 236, 228, .35);--accent: #c8f542;--accent-soft: rgba(200, 245, 66, .14);--teal: #5eead4;--line: rgba(232, 236, 228, .1);--display: "Instrument Serif", Georgia, serif;--sans: "Outfit", system-ui, sans-serif;--mono: "IBM Plex Mono", ui-monospace, monospace;--chrome-h: 3.25rem}*,*:before,*:after{box-sizing:border-box}html,body{margin:0;height:100%;background:var(--bg-0);color:var(--ink);font-family:var(--sans);-webkit-font-smoothing:antialiased}body{background:radial-gradient(1200px 700px at 10% -10%,rgba(200,245,66,.08),transparent 55%),radial-gradient(900px 600px at 100% 0%,rgba(94,234,212,.07),transparent 50%),linear-gradient(180deg,#0f140c 0%,var(--bg-0) 45%,#0a0c08 100%);overflow:hidden;overscroll-behavior:none}#app{height:100svh;display:grid;grid-template-rows:var(--chrome-h) 1fr var(--chrome-h)}.chrome{display:flex;align-items:center;justify-content:space-between;padding:0 1.5rem;border-bottom:1px solid var(--line);z-index:2}.chrome-footer{border-bottom:none;border-top:1px solid var(--line)}.brand{margin:0;font-family:var(--mono);font-size:.9rem;letter-spacing:.08em;text-transform:uppercase;color:var(--accent)}.progress,.hint{margin:0;font-family:var(--mono);font-size:.9rem;color:var(--muted)}.nav-btns{display:flex;gap:.4rem}.nav-btns button{appearance:none;border:1px solid var(--line);background:transparent;color:var(--ink);width:2.25rem;height:2rem;font-size:1rem;cursor:pointer;transition:border-color .16s ease,background .16s ease,color .16s ease}.nav-btns button:hover{border-color:var(--accent);background:var(--accent-soft);color:var(--accent)}.deck{position:relative;outline:none;overflow:hidden;min-height:0}.slide{position:absolute;inset:0;padding:clamp(1.25rem,4vw,3rem) clamp(1.25rem,5vw,4.5rem);padding-bottom:clamp(1.5rem,4vw,2.5rem);display:flex;flex-direction:column;overflow-x:hidden;overflow-y:auto;overscroll-behavior:contain;-webkit-overflow-scrolling:touch;scrollbar-gutter:stable;opacity:0;visibility:hidden;transform:translateY(18px);transition:opacity .38s ease,transform .42s cubic-bezier(.22,1,.36,1),visibility 0s linear .38s;pointer-events:none}.slide::-webkit-scrollbar{width:8px}.slide::-webkit-scrollbar-thumb{background:#c8f54247;border-radius:4px}.slide::-webkit-scrollbar-track{background:transparent}.slide.is-active{opacity:1;visibility:visible;transform:translateY(0);transition:opacity .42s ease,transform .48s cubic-bezier(.22,1,.36,1),visibility 0s;pointer-events:auto}.slide.is-exit{opacity:0;transform:translateY(-12px)}.eyebrow{margin:0 0 .45rem;font-family:var(--mono);font-size:.9rem;letter-spacing:.14em;text-transform:uppercase;color:var(--teal)}.slide h1{margin:0;font-family:var(--display);font-weight:400;font-size:clamp(1.65rem,3.2vw,2.6rem);line-height:1.15;letter-spacing:-.02em;max-width:28ch;text-wrap:balance}.slide--title h1{max-width:none;font-size:clamp(3.2rem,9vw,7rem);line-height:1.05}.slide--chart{min-height:100%;padding-top:clamp(.85rem,2.2vw,1.75rem);padding-bottom:clamp(.85rem,2vw,1.5rem)}.slide--chart h1{font-size:clamp(1.35rem,2.4vw,1.95rem);max-width:min(42rem,100%);margin-bottom:0}.slide--chart .eyebrow{margin-bottom:.2rem}.chart-wrap{flex:1 1 auto;margin-top:.55rem;display:grid;grid-template-rows:1fr auto;gap:.45rem;min-height:0}.chart-canvas-box{position:relative;min-height:clamp(320px,58vh,640px);height:100%;flex:1 1 auto}.slide--chart-scale-toggle .chart-canvas-box{min-height:clamp(360px,62vh,700px)}.chart-meta{display:flex;flex-wrap:wrap;justify-content:space-between;gap:.55rem 1.5rem;border-top:1px solid var(--line);padding-top:.55rem}.subtitle{margin:1.25rem 0 0;max-width:36rem;font-size:clamp(1.05rem,2vw,1.35rem);color:var(--muted);line-height:1.45}.slide-footer{margin-top:auto;padding-top:2rem;font-family:var(--mono);font-size:.9rem;color:var(--faint);letter-spacing:.04em}.bullets{margin:1.75rem 0 0;padding:0;list-style:none;display:grid;gap:.85rem;max-width:42rem}.bullets li{position:relative;padding-left:1.25rem;font-size:clamp(1.05rem,1.8vw,1.3rem);line-height:1.4;color:var(--ink)}.bullets li:before{content:"";position:absolute;left:0;top:.55em;width:.45rem;height:.45rem;background:var(--accent);border-radius:1px}.slide--agenda{justify-content:flex-start}.slide--agenda h1{font-size:clamp(2.4rem,6vw,4.2rem);max-width:12ch;margin-bottom:.35rem}.agenda-overlay{margin-top:clamp(1.1rem,2.8vh,1.85rem);padding:clamp(1rem,2.2vh,1.4rem) 0 clamp(1.15rem,2.5vh,1.6rem);border-top:1px solid rgba(94,234,212,.35);border-bottom:1px solid rgba(94,234,212,.35);opacity:0;transform:translateY(16px)}.slide.is-active .agenda-overlay{animation:fade-up .52s 40ms cubic-bezier(.22,1,.36,1) forwards}.agenda-overlay-kicker{margin:0 0 .45rem;font-family:var(--mono);font-size:.85rem;letter-spacing:.16em;text-transform:uppercase;color:var(--teal)}.agenda-overlay-label{margin:0;font-family:var(--display);font-size:clamp(2.2rem,5vw,3.6rem);line-height:1;color:var(--ink);letter-spacing:-.02em}.agenda-overlay-hook{margin:.55rem 0 0;max-width:36rem;font-size:clamp(1rem,1.5vw,1.2rem);line-height:1.35;color:var(--muted)}.agenda-grid{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:0;flex:1;align-content:stretch}.agenda-item{display:grid;grid-template-columns:auto minmax(0,1fr);gap:.85rem 1.1rem;align-content:center;padding:clamp(1.25rem,3vh,2rem) clamp(.75rem,2vw,1.5rem);border-bottom:1px solid var(--line);opacity:0;transform:translateY(16px)}.agenda-item:nth-child(odd){padding-left:0;border-right:1px solid var(--line)}.agenda-item:nth-child(2n){padding-right:0}.slide.is-active .agenda-item{animation:fade-up .52s calc(.12s + var(--i) * 80ms) cubic-bezier(.22,1,.36,1) forwards}.agenda-num{font-family:var(--mono);font-size:clamp(.85rem,1.2vw,1rem);letter-spacing:.12em;color:var(--accent);line-height:1.6;padding-top:.2em}.agenda-copy{min-width:0}.agenda-label{margin:0;font-family:var(--display);font-size:clamp(1.85rem,3.4vw,2.8rem);line-height:1.05;color:var(--ink);letter-spacing:-.01em}.agenda-hook{margin:.55rem 0 0;max-width:28ch;font-size:clamp(.95rem,1.35vw,1.15rem);line-height:1.35;color:var(--muted)}.chart-reveal-btn{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);z-index:2;appearance:none;border:1px solid rgba(200,245,66,.45);background:#0c100ae0;color:var(--accent);font-family:var(--sans);font-size:1.05rem;font-weight:500;letter-spacing:.02em;padding:.85rem 1.4rem;cursor:pointer;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);transition:border-color .16s ease,background .16s ease,color .16s ease,transform .16s ease}.chart-reveal-btn:hover{border-color:var(--accent);background:#c8f5421f;transform:translate(-50%,-50%) scale(1.03)}.chart-reveal-btn:focus-visible{outline:2px solid var(--accent);outline-offset:3px}.slide--chart-reveal.is-revealed .chart-reveal-btn{display:none}.slide-chart-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:1rem 1.25rem}.slide-chart-heading h1{flex:1 1 auto;min-width:0}.slide-chart-actions{display:flex;flex-wrap:wrap;gap:.5rem;flex:0 0 auto;align-self:center}.chart-scale-btn{appearance:none;border:1px solid rgba(94,234,212,.45);background:#0c100ae0;color:var(--teal);font-family:var(--sans);font-size:.95rem;font-weight:500;letter-spacing:.02em;padding:.65rem 1.15rem;cursor:pointer;white-space:nowrap;transition:border-color .16s ease,background .16s ease,color .16s ease,transform .16s ease}.chart-scale-btn:hover{border-color:var(--teal);background:#5eead41f;transform:scale(1.03)}.chart-scale-btn:focus-visible{outline:2px solid var(--teal);outline-offset:3px}.slide--chart-scale-toggle.is-linear-scale .chart-scale-btn{border-color:#c8f54273;color:var(--accent)}.slide--chart-scale-toggle.is-linear-scale .chart-scale-btn:hover{border-color:var(--accent);background:#c8f5421f}.slide--chart-reveal-dataset .slide-chart-heading .chart-reveal-btn{position:static;left:auto;right:auto;top:auto;transform:none;flex:0 0 auto;margin-top:0;padding:.65rem 1.15rem;font-size:.95rem;white-space:nowrap}.slide--chart-reveal-dataset .slide-chart-heading .chart-reveal-btn:hover{transform:scale(1.03)}.slide--chart-reveal-dataset .slide-chart-heading .chart-reveal-btn--teal{border-color:#5eead473;color:var(--teal)}.slide--chart-reveal-dataset .slide-chart-heading .chart-reveal-btn--teal:hover{border-color:var(--teal);background:#5eead41f}.takeaway{margin:0;max-width:40rem;font-size:.95rem;color:var(--ink)}.takeaway strong{color:var(--accent);font-weight:500}.source{margin:0;font-family:var(--mono);font-size:.9rem;color:var(--faint);align-self:end}.story-grid{margin-top:1.5rem;display:grid;grid-template-columns:1.4fr 1fr;gap:clamp(1.5rem,4vw,3.5rem);align-items:start}.slide--duel{gap:.7rem}.slide--duel h1{font-size:clamp(1.45rem,2.8vw,2.2rem);max-width:min(40rem,100%);margin:0}.duel-legend{display:flex;flex-wrap:wrap;gap:1rem 1.5rem;margin-top:.15rem}.duel-legend-item{display:inline-flex;align-items:center;gap:.45rem;font-family:var(--mono);font-size:.9rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}.duel-legend-swatch{width:.85rem;height:.85rem;border-radius:2px}.duel-legend-item--usa .duel-legend-swatch{background:var(--accent)}.duel-legend-item--china .duel-legend-swatch{background:var(--teal)}.slide--duel-reveal:not(.is-revealed) .duel-bar-line--china{opacity:0;max-height:0;overflow:hidden;margin:0;transform:translateY(10px);pointer-events:none}.slide--duel-reveal:not(.is-revealed) .duel-bar-fill--china{transform:scaleX(0);animation:none!important}.slide--duel-reveal:not(.is-revealed) .duel-bar-value--china,.slide--duel-reveal:not(.is-revealed) .duel-legend-item--china,.slide--duel-reveal:not(.is-revealed) .duel-row-note{opacity:0;visibility:hidden;pointer-events:none}.slide--duel-reveal.is-revealed .duel-legend-item--china{animation:fade-up .48s 60ms cubic-bezier(.22,1,.36,1) both}.slide--duel-reveal.is-revealed .duel-bar-line--china{animation:duel-china-open .72s calc(var(--i, 0) * .11s) cubic-bezier(.22,1,.36,1) both}.slide--duel-reveal.is-revealed .duel-bar-fill--china{animation:duel-grow .95s calc(90ms + var(--i, 0) * .11s) cubic-bezier(.22,1,.36,1) both}.slide--duel-reveal.is-revealed .duel-bar-value--china{animation:fade-up .52s calc(.32s + var(--i, 0) * .11s) cubic-bezier(.22,1,.36,1) both}.slide--duel-reveal.is-revealed .duel-row-note{animation:fade-up .52s calc(.38s + var(--i, 0) * .11s) cubic-bezier(.22,1,.36,1) both}@keyframes duel-china-open{0%{opacity:0;max-height:0;transform:translateY(10px)}to{opacity:1;max-height:3rem;transform:translateY(0)}}.duel-chart{flex:1;display:grid;gap:clamp(1rem,2.2vh,1.5rem);align-content:center;min-height:0;margin:.35rem 0}.duel-row{opacity:0;transform:translateY(12px)}.slide.is-active .duel-row{animation:fade-up .48s calc(var(--i) * 80ms) cubic-bezier(.22,1,.36,1) forwards}.duel-row-head{display:flex;align-items:baseline;justify-content:space-between;gap:1rem;margin-bottom:.45rem}.duel-row-label{margin:0;font-family:var(--mono);font-size:.9rem;letter-spacing:.08em;text-transform:uppercase;color:var(--faint)}.duel-row-note{margin:0;font-family:var(--display);font-size:1.35rem;color:var(--accent);line-height:1}.duel-bars{display:grid;gap:.4rem}.duel-bar-line{display:grid;grid-template-columns:3.2rem 5.8rem minmax(0,1fr);gap:.75rem;align-items:center}.duel-bar-name{font-family:var(--mono);font-size:.9rem;letter-spacing:.04em;color:var(--muted)}.duel-bar-track{height:1.45rem;background:#e8ece412;overflow:hidden}.duel-bar-fill{display:block;height:100%;width:var(--w, 100%);transform-origin:left center}.duel-bar-fill--usa{background:var(--accent)}.duel-bar-fill--china{background:var(--teal)}.slide.is-active .duel-bar-fill{animation:duel-grow .7s calc(.12s + var(--i, 0) * 80ms) cubic-bezier(.22,1,.36,1) both}.duel-bar-value{font-family:var(--display);font-size:1.25rem;line-height:1;text-align:right;white-space:nowrap}.duel-bar-value--usa{color:var(--accent)}.duel-bar-value--china{color:var(--teal)}.duel-footer{margin-top:auto;padding-top:.85rem;border-top:1px solid var(--line);display:grid;gap:.4rem;flex-shrink:0}.duel-footer .takeaway{margin:0;font-size:1.02rem;max-width:none}.duel-footer .source{margin:0;font-size:.9rem}@keyframes duel-grow{0%{transform:scaleX(0)}to{transform:scaleX(1)}}.slide--info .eyebrow{font-size:.95rem}.slide--info h1{font-size:clamp(1.5rem,2.8vw,2.2rem);max-width:min(36rem,100%);margin-bottom:.35rem}.info-section-label{margin:1rem 0 .75rem;font-family:var(--mono);font-size:.95rem;letter-spacing:.1em;text-transform:uppercase;color:var(--teal)}.info-race{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;position:relative;margin-bottom:1.25rem}.info-race:has(.info-mile:nth-child(4):last-child){grid-template-columns:repeat(4,minmax(0,1fr))}.info-race:has(.info-mile:nth-child(4):last-child) .info-mile{padding:0 .45rem .25rem}.info-race:has(.info-mile:nth-child(4):last-child) .info-mile-score{font-size:clamp(1.45rem,3vw,2.35rem)}.info-race:has(.info-mile:nth-child(4):last-child) .info-mile-note{font-size:.95rem;max-width:none}.info-race:before{content:"";position:absolute;left:8%;right:8%;top:2.55rem;height:2px;background:linear-gradient(90deg,#94a3b8,var(--teal),var(--accent));opacity:.55;pointer-events:none}.info-mile{position:relative;padding:0 .75rem .25rem;opacity:0;transform:translateY(14px)}.slide.is-active .info-mile{animation:fade-up .52s cubic-bezier(.22,1,.36,1) forwards;animation-delay:calc(80ms + var(--i, 0) * .12s)}.info-mile-year{margin:0 0 1.35rem;font-family:var(--mono);font-size:.95rem;letter-spacing:.08em;color:var(--muted)}.info-mile-year:before{content:"";display:block;width:.7rem;height:.7rem;margin-bottom:.55rem;border-radius:50%;background:var(--accent);box-shadow:0 0 0 5px var(--bg-0)}.info-mile:nth-child(1) .info-mile-year:before{background:#94a3b8}.info-mile:nth-child(2) .info-mile-year:before{background:var(--teal)}.info-mile-score{margin:0;font-family:var(--display);font-size:clamp(2rem,4.5vw,3.25rem);line-height:1;color:var(--ink);letter-spacing:-.02em}.info-mile:nth-child(3) .info-mile-score,.info-mile:nth-child(4) .info-mile-score{color:var(--accent)}.info-race:has(.info-mile:nth-child(4):last-child) .info-mile:nth-child(3) .info-mile-score{color:var(--ink)}.info-race:has(.info-mile:nth-child(4):last-child) .info-mile:nth-child(1) .info-mile-score{color:var(--accent)}.info-mile-detail{margin:.55rem 0 .25rem;font-size:1.05rem;color:var(--ink)}.info-mile-note{margin:0;font-size:.95rem;color:var(--muted);line-height:1.4;max-width:20rem}.info-bottom{display:grid;grid-template-columns:1.35fr 1fr;gap:clamp(1.25rem,3vw,2.5rem);align-items:stretch;border-top:1px solid var(--line);padding-top:1.15rem}.info-highlight{display:flex;align-items:center;gap:1.1rem;min-width:0}.info-highlight-value{margin:0;font-family:var(--display);font-size:clamp(3.5rem,8vw,5.5rem);line-height:.9;color:var(--accent);letter-spacing:-.03em;flex-shrink:0}.info-highlight-label{margin:0;font-size:1.25rem;color:var(--ink)}.info-highlight-sub{margin:.3rem 0 0;font-size:1.05rem;color:var(--muted);line-height:1.4}.info-highlight-meta{margin:.5rem 0 0;font-family:var(--mono);font-size:.95rem;color:var(--faint)}.info-callouts{display:grid;gap:.85rem;align-content:center}.info-callout-value{margin:0;font-family:var(--mono);font-size:.95rem;letter-spacing:.08em;text-transform:uppercase;color:var(--teal)}.info-callout-text{margin:.25rem 0 0;font-size:1.05rem;color:var(--ink);line-height:1.4}.info-quote{margin:1.15rem 0 0;padding:1rem 0 0 1.15rem;border:none;border-left:3px solid var(--accent)}.info-quote-text{margin:0;font-family:var(--display);font-size:clamp(1.1rem,2vw,1.35rem);line-height:1.4;color:var(--ink);font-style:italic;max-width:48rem}.info-quote-footer{display:flex;flex-wrap:wrap;align-items:baseline;gap:.5rem 1rem;margin-top:.65rem}.info-quote-footer cite{font-family:var(--sans);font-style:normal;font-size:1rem;color:var(--accent)}.info-quote-note{font-family:var(--mono);font-size:.95rem;color:var(--faint)}.info-takeaway{margin-top:auto;padding-top:1rem;border-top:1px solid var(--line);font-size:1.05rem}.slide--info .takeaway{font-size:1.05rem}.slide--info .source,.chart-meta .source{font-size:.9rem}.story-body p{margin:0 0 1rem;font-size:clamp(1rem,1.5vw,1.15rem);line-height:1.55;color:var(--muted);max-width:38rem}.story-body p:first-child{color:var(--ink)}.story-aside .bullets{margin-top:0}.timeline{margin-top:1.75rem;display:grid;gap:0;border-left:1px solid var(--line);padding-left:1.5rem;max-width:46rem}.timeline-item{position:relative;padding:0 0 1.5rem;opacity:0;transform:translate(-8px)}.slide.is-active .timeline-item{animation:reveal-item .48s cubic-bezier(.22,1,.36,1) forwards}.slide.is-active .timeline-item:nth-child(1){animation-delay:80ms}.slide.is-active .timeline-item:nth-child(2){animation-delay:.18s}.slide.is-active .timeline-item:nth-child(3){animation-delay:.28s}.slide.is-active .timeline-item:nth-child(4){animation-delay:.38s}.slide.is-active .timeline-item:nth-child(5){animation-delay:.48s}.slide.is-active .timeline-item:nth-child(6){animation-delay:.56s}.timeline-item:before{content:"";position:absolute;left:-1.5rem;top:.35rem;width:.55rem;height:.55rem;margin-left:-.3rem;background:var(--accent);box-shadow:0 0 0 4px var(--bg-0)}.timeline-date{margin:0;font-family:var(--mono);font-size:.9rem;letter-spacing:.08em;text-transform:uppercase;color:var(--teal)}.timeline-item h2{margin:.25rem 0 .35rem;font-family:var(--display);font-weight:400;font-size:clamp(1.5rem,2.5vw,2rem)}.timeline-item p{margin:0;color:var(--muted);font-size:1rem;line-height:1.45;max-width:36rem}.slide--title{justify-content:center;background:linear-gradient(120deg,transparent 40%,rgba(200,245,66,.04) 100%),repeating-linear-gradient(-12deg,transparent,transparent 28px,rgba(232,236,228,.015) 28px,rgba(232,236,228,.015) 29px)}.slide--title .subtitle{animation:fade-up .7s .12s cubic-bezier(.22,1,.36,1) both}.slide--title h1{animation:fade-up .65s cubic-bezier(.22,1,.36,1) both}.slide--close h1{max-width:12ch}@keyframes fade-up{0%{opacity:0;transform:translateY(22px)}to{opacity:1;transform:translateY(0)}}@keyframes reveal-item{to{opacity:1;transform:translate(0)}}@media(max-width:800px){.story-grid{grid-template-columns:1fr}.hint{display:none}.slide h1,.slide--chart h1{max-width:none}.slide--agenda h1{max-width:none;font-size:clamp(2rem,9vw,2.8rem)}.agenda-grid{grid-template-columns:1fr}.agenda-item:nth-child(odd){border-right:none;padding-left:0}.agenda-item:nth-child(2n){padding-right:0}.agenda-hook{max-width:none}.slide-chart-heading{flex-direction:column;align-items:stretch;gap:.75rem}.slide-chart-actions{align-self:flex-start}.slide--chart-reveal-dataset .slide-chart-heading .chart-reveal-btn,.chart-scale-btn{align-self:flex-start;white-space:normal}.chart-meta{flex-direction:column}.info-race,.info-race:has(.info-mile:nth-child(4):last-child){grid-template-columns:1fr;gap:1.25rem}.info-race:before{display:none}.info-mile-year{margin-bottom:.35rem}.info-mile-year:before{display:inline-block;margin:0 .45rem 0 0;vertical-align:middle;box-shadow:none}.info-bottom{grid-template-columns:1fr}.info-highlight{flex-direction:column;align-items:flex-start;gap:.5rem}.duel-bar-line{grid-template-columns:2.8rem 4.8rem minmax(0,1fr);gap:.5rem}.duel-bar-value{font-size:1.05rem}}@media(prefers-reduced-motion:reduce){.slide,.slide.is-active,.slide--title h1,.slide--title .subtitle,.timeline-item,.slide.is-active .timeline-item,.slide.is-active .duel-row,.slide.is-active .duel-bar-fill{animation:none!important;transition:none!important;opacity:1;transform:none}}