:root{--bg: #fff7ec;--bg-elev: #ffffff;--bg-glass: rgba(255, 247, 236, .9);--ink: #1a1410;--ink-soft: var(--ink-2);--quiet: var(--ink-2);--hush: #9a8a7a;--stone: var(--ink-3);--stone-soft: #f0e3cf;--sand: #e3cfae;--sand-warm: #f8f0e3;--teal: var(--primary);--teal-deep: #b83d10;--teal-soft: rgba(217, 75, 22, .12);--teal-band: rgba(217, 75, 22, .15);--glow-inner: rgba(217, 75, 22, .18);--glow-outer: rgba(31, 122, 224, .09);--alive: #1f7ae0;--accent: #1f7ae0;--stegeman: var(--ink-3);--sanford: #5b4a3c;--sage: #7A9A7E;--amber: #c8ee5a;--mark-warm: #d94b16;--mark-warm-active: #c04010;--mark-warm-ready: #e05828;--surface: var(--bg-elev);--ink-2: #5b4a3c;--ink-3: #9a8a7a;--line: #f0e3cf;--line-2: #e3cfae;--color-muted: var(--ink-3);--color-border: var(--line-2);--color-ink: var(--ink);--color-accent: var(--alive);--primary: #d94b16;--primary-soft: #fad5c0;--accent-soft: #d8eaff;--sage-soft: #f2f6f0;--highlight: #c8ee5a;--cart-a-blue: #1B5F94;--cart-b-coral: #B5523F;--impact-warm: #D88533;--chart-bg-cool: #fdf8f2;--sim-floor-warm: rgba(255, 247, 236, .4);--shadow-object: 0 0 0 1px var(--line), 0 4px 14px -8px rgba(26, 20, 16, .08), 0 1px 3px -1px rgba(26, 20, 16, .04);--shadow-card: var(--shadow-object);--shadow-button: none;--input-border: none;--sans: "Hanken Grotesk", ui-sans-serif, system-ui, -apple-system, sans-serif;--serif: "Hanken Grotesk", ui-sans-serif, system-ui, -apple-system, sans-serif;--font-heading: "Fredoka", "Hanken Grotesk", ui-sans-serif, system-ui, -apple-system, sans-serif;--mono: "Hanken Grotesk", ui-sans-serif, system-ui, -apple-system, sans-serif;--spring-glide: cubic-bezier(.32, .72, 0, 1);--spring-pop: cubic-bezier(.34, 1.56, .64, 1);--spring-soft: cubic-bezier(.25, 1, .5, 1);--t-fast: .22s;--t-base: .38s;--t-slow: .62s;--t-reveal: .88s;--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--radius-xl: 16px;--radius-pill: 999px;--label-tracking: .06em;--fs-hero: clamp(28px, 4vw, 44px);--fs-display: clamp(21px, 2.4vw, 25px);--fs-title: 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[data-phase]{scroll-margin-top:clamp(92px,12vh,132px)}.done-summary{scroll-margin-top:clamp(56px,8vh,96px)}.done-summary-head{display:flex;flex-direction:column;align-items:flex-start;gap:6px;margin-bottom:24px}.done-summary-badge{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:50%;background:var(--primary);color:var(--surface);font-size:22px;font-weight:700;margin-bottom:6px}.done-summary-title{font-family:var(--sans);font-size:var(--fs-h2, 1.5rem);font-weight:700;color:var(--ink);margin:0}.done-summary-sub{font-family:var(--sans);font-size:var(--fs-body);color:var(--ink-2);margin:0}.done-summary-actions{margin-top:28px}.run-submissions{margin-top:24px;display:flex;flex-direction:column;gap:8px}.run-submissions-label{font-family:var(--sans);font-size:var(--fs-label, .8rem);font-weight:600;color:var(--primary);letter-spacing:.02em}.run-sub{border:1px solid 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.vel-text{fill:var(--cart-b-coral)}.sim-spring{stroke:var(--ink);stroke-width:1.5;fill:none;stroke-linecap:round}.sim-impact-glow{fill:var(--impact-warm);opacity:0}.sim-impact-glow.flash{animation:impactFlash .7s var(--spring-soft)}@keyframes impactFlash{0%{opacity:0}18%{opacity:.5}to{opacity:0}}.mass-tag-bg{fill:var(--bg-elev);stroke:var(--ink);stroke-width:1.4;cursor:ns-resize;transition:fill var(--t-fast) ease}.mass-tag-bg:hover{fill:var(--sand-warm)}.mass-tag-bg.dragging{fill:var(--ink);stroke:var(--ink)}.mass-tag-text{font-family:var(--mono);font-size:var(--fs-body-sm);fill:var(--ink);font-feature-settings:"tnum";pointer-events:none}.mass-tag-bg.dragging+.mass-tag-text{fill:var(--bg-elev)}.mass-tag-touch{fill:transparent;cursor:ns-resize}.speed-track{stroke:var(--stone);stroke-width:2;fill:none;stroke-linecap:round}.speed-handle{fill:var(--teal);stroke:var(--bg-elev);stroke-width:2;cursor:ew-resize;transition:r var(--t-fast) 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