.doit-flow{--doit-muted:#595959;--doit-accent:#a51b2b;--doit-wood:#8d5b29;--doit-wood-fill:#dfc6a7;color:var(--global-text-color);padding-bottom:2rem}html[data-theme="dark"] .doit-flow{--doit-muted:#b8b8b8;--doit-accent:#f09aa6;--doit-wood:#e0ac72;--doit-wood-fill:#dac7ae}.doit-flow a{color:var(--doit-accent);text-underline-offset:.22em}.doit-flow a:hover{text-decoration:underline}.doit-flow :focus-visible{outline:2px solid var(--doit-accent);outline-offset:5px}.doit-flow ::selection{background:var(--doit-accent);color:#fff}.doit-flow figure{margin:0;min-width:0}.doit-flow img,.doit-flow video{display:block;width:100%;height:auto}.doit-flow figcaption{margin-top:.8rem;color:var(--doit-muted);font-size:.88rem;line-height:1.6}.doit-flow figcaption a{text-decoration:underline}.doit-flow h1,.doit-flow h2,.doit-flow h3{text-wrap:balance}.doit-flow p{line-height:1.75}.doit-back{display:inline-block;padding:.6rem 0;font-size:.9rem}.doit-intro{display:grid;grid-template-columns:1fr 1.2fr;gap:2rem;align-items:center;padding:2.5rem 0 3rem}.doit-intro h1{font-size:clamp(3.5rem,7vw,5.7rem);margin:0 0 1.5rem}.doit-intro .doit-lead{font-size:clamp(1.5rem,3vw,2rem);line-height:1.35;margin-bottom:1.4rem}.doit-intro p:last-child{margin-bottom:0;max-width:38ch}.doit-opening img{aspect-ratio:4 / 5;object-fit:cover;object-position:48% center}.doit-contents{display:flex;flex-wrap:wrap;gap:.5rem 2rem;border-block:1px solid var(--global-divider-color);padding:.5rem 0}.doit-contents a{display:inline-flex;align-items:center;min-height:44px;font-weight:600}.doit-chapter{padding:5rem 0;scroll-margin-top:100px;border-bottom:1px solid var(--global-divider-color)}.doit-split{display:grid;grid-template-columns:1fr 1.25fr;gap:3rem;align-items:center}.doit-copy h2,.doit-tree-intro h2{font-size:clamp(2rem,4vw,3.2rem);line-height:1.2;margin-bottom:1.5rem}.doit-studies{margin:1.8rem 0 0}.doit-studies dt{font-weight:600;margin:1.3rem 0 .35rem}.doit-studies dd{color:var(--doit-muted);line-height:1.65;margin:0}.doit-chain{grid-template-columns:1.25fr 1fr}.doit-chain .doit-copy{order:2}.doit-chain .doit-media{order:1}.doit-tree-intro{display:grid;grid-template-columns:1.1fr 1fr;gap:3rem;align-items:center;margin-bottom:3rem}.doit-tree-intro p{margin:0}.doit-tree-study{display:grid;grid-template-columns:.65fr 1.35fr;gap:2.5rem;align-items:center}.doit-copy h3,.doit-growth-heading h3{font-size:1.8rem;line-height:1.3;margin-bottom:1.1rem}.doit-growth{margin-top:4.5rem}.doit-growth-heading{display:grid;grid-template-columns:1fr 1fr;gap:3rem;align-items:center;margin-bottom:1.5rem}.doit-growth-heading p{margin:0}.doit-growth .doit-media img{background:transparent}.doit-control-label{display:flex;gap:1rem;flex-wrap:wrap;justify-content:space-between}.doit-control-label label{font-weight:600}.doit-control-label output{color:var(--doit-accent);font-variant-numeric:tabular-nums}.doit-outro{padding:2.5rem 0}.doit-outro p{margin-bottom:.4rem}.doit-outro a{display:inline-block;padding:.5rem 0}@media(prefers-reduced-motion:no-preference){.doit-opening img{animation:doit-reveal 1.2s cubic-bezier(0.16,1,0.3,1) both}@keyframes doit-reveal{from{clip-path:inset(0 8% 0 0)}to{clip-path:inset(0)}}}@media(max-width:700px){.doit-intro,.doit-split,.doit-tree-intro,.doit-tree-study,.doit-growth-heading{grid-template-columns:1fr;gap:1.6rem}.doit-intro{padding-top:1.7rem}.doit-intro .doit-lead br{display:none}.doit-intro p:last-child{max-width:65ch}.doit-opening img{aspect-ratio:16 / 10;object-fit:cover}.doit-contents{gap:0 1.25rem}.doit-chapter{padding:3rem 0}.doit-chain .doit-copy,.doit-chain .doit-media{order:initial}.doit-tree-intro{margin-bottom:2rem}.doit-tree-intro h2{margin-bottom:0}.doit-growth{margin-top:3rem}.doit-desktop-break{display:none}}.doit-experiment>svg{display:block;width:100%;height:auto;background:var(--global-bg-color)}.doit-experiment svg text{fill:var(--doit-muted);font:16px "Inter",sans-serif}.doit-diagram-ground{stroke:var(--global-text-color);stroke-width:2}.doit-diagram-line{stroke:var(--doit-accent);fill:none;stroke-width:2}.doit-diagram-dashed{stroke:var(--doit-muted);fill:none;stroke-width:1.5;stroke-dasharray:5 5}.doit-diagram-point{fill:var(--doit-accent)}.doit-package-box{stroke:var(--doit-accent);stroke-width:2.5;fill:var(--global-bg-color)}.doit-chain-line{stroke:var(--doit-accent);stroke-width:3;fill:none}.doit-experiment-controls{margin:1rem 0}.doit-experiment-controls label{display:flex;justify-content:space-between;gap:1rem;margin:.5rem 0 0;font-weight:600}.doit-experiment-controls output{color:var(--doit-accent);font-weight:400;font-variant-numeric:tabular-nums}.doit-flow input[type="range"]{display:block;width:100%;min-height:44px;margin:0;accent-color:var(--doit-accent);cursor:pointer}.doit-model-result{min-height:3.5em;margin:.4rem 0 0}.doit-landing{padding-bottom:0}.doit-landing-comparison{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:#536278}.doit-landing-panel{padding:1.5rem;background:#101c2c;color:#e7eff8}.doit-landing-panel h3{font-size:1.7rem;margin:0;color:#e7eff8}.doit-landing-panel p{margin:.4rem 0 0;color:#c0cede}.doit-landing-panel svg{display:block;width:100%;height:auto}.doit-landing-panel figcaption{color:#c0cede;min-height:3.2em}.doit-landing-panel .doit-diagram-ground{stroke:#8eabc4}.doit-lander-body{fill:#d9e4ed}.doit-lander-panel-line{stroke:#8ccbd4;stroke-width:9}.doit-lander-legs{stroke:#f0aa8d;stroke-width:7;fill:none}[data-landing-panel="damped"] .doit-lander-legs{stroke:#8ccbd4}.doit-lander-feet{stroke:#d9e4ed;stroke-width:7;fill:none}.doit-landing-controls{max-width:640px;margin:1.5rem auto}.doit-landing-actions{display:flex;flex-wrap:wrap;gap:.8rem;margin-top:.8rem}.doit-landing-actions button{border:1px solid var(--doit-accent);background:transparent;color:var(--doit-accent);border-radius:6px;min-height:44px;padding:.6rem 1rem;cursor:pointer}.doit-landing-actions button:hover{background:var(--doit-accent);color:var(--global-bg-color)}.doit-landing-note{max-width:75ch;margin:1.5rem auto 0;font-size:.9rem;color:var(--doit-muted)}.doit-landing-error{color:var(--doit-accent)}.doit-landing-next{display:grid;grid-template-columns:1fr 1.25fr;gap:3rem;padding:3rem 0}.doit-landing-next h3{font-size:1.8rem}.doit-landing-next .doit-studies{margin:0}.doit-landing-next dt:first-child{margin-top:0}@media(max-width:700px){.doit-landing-next{grid-template-columns:1fr}.doit-landing-panel{padding:.8rem}.doit-landing-panel h3{font-size:1.15rem;line-height:1.3;min-height:2.6em}.doit-landing-panel p,.doit-landing-panel figcaption{font-size:.8rem}.doit-landing-panel figcaption{min-height:4.8em}.doit-landing-panel svg{max-width:420px;margin:0 auto}.doit-landing-next{gap:1rem}}.doit-plot-axis{stroke:#8eabc4;stroke-width:1.5;fill:none}.doit-response-plot text{fill:#c0cede;font:16px "Inter",sans-serif}.doit-compression-curve{stroke:#8ccbd4;stroke-width:3;fill:none}.doit-force-curve{stroke:#f0aa8d;stroke-width:3;fill:none}.doit-plot-cursor{stroke:#c0cede;stroke-width:1;stroke-dasharray:4 4;fill:none}.doit-compression-point{fill:#8ccbd4}.doit-force-point{fill:#f0aa8d}.doit-landing-panel .doit-compression-key{color:#8ccbd4}.doit-landing-panel .doit-force-key{color:#f0aa8d}.doit-belt-bed{fill:var(--global-bg-color);stroke:var(--doit-muted);stroke-width:1}.doit-belt-roller{fill:var(--global-bg-color);stroke:var(--doit-muted);stroke-width:1.5}.doit-belt-spoke{stroke:var(--doit-muted);stroke-width:1.5;fill:none}.doit-belt-mark{stroke:var(--doit-accent);stroke-width:2.5}.doit-belt-readout{display:flex;justify-content:space-between;flex-wrap:wrap;gap:.35rem 1rem;margin-top:1rem;color:var(--doit-muted);font-size:.88rem;font-variant-numeric:tabular-nums}.doit-belt-readout output{margin-left:.35rem}.doit-chain-baseline{stroke:var(--doit-muted);stroke-width:1.5;stroke-dasharray:5 5;fill:none}.doit-experiment-controls .doit-creep-toggle{justify-content:flex-start;align-items:center;min-height:44px;font-weight:400;gap:.6rem}.doit-creep-toggle input{width:20px;height:20px;accent-color:var(--doit-accent)}.doit-chain-scale{color:var(--doit-muted);font-size:.85rem;margin-top:.3rem}.doit-package-stage{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem;margin:2rem 0 1.5rem}.doit-package-stage h3{font-size:1.6rem;margin-bottom:1rem}.doit-package-stage svg{display:block;width:100%;height:auto}.doit-package-stage svg text{fill:var(--doit-muted);font:16px "Inter",sans-serif}.doit-zone-stable{fill:#408b72;fill-opacity:.2}.doit-zone-sliding{fill:#c78a36;fill-opacity:.23}.doit-zone-tipping{fill:var(--doit-accent);fill-opacity:.16}@media(max-width:700px){.doit-package-stage{grid-template-columns:1fr;gap:2rem}}.doit-checkout>.doit-copy{display:grid;grid-template-columns:1fr 1.25fr;gap:0 3rem}.doit-checkout>.doit-copy h2{grid-row:1 / 3}.doit-checkout>.doit-copy>p,.doit-checkout>.doit-copy>dl{grid-column:2}.doit-checkout .doit-studies{margin-top:0}.doit-checkout .doit-experiment-controls{display:grid;grid-template-columns:1fr 1fr;gap:.3rem 2rem}.doit-checkout .doit-experiment-controls[hidden]{display:none}.doit-checkout label[for="package-ratio"]{grid-column:1;grid-row:1}.doit-checkout #package-ratio{grid-column:1;grid-row:2}.doit-checkout label[for="package-acceleration"]{grid-column:2;grid-row:1}.doit-checkout #package-acceleration{grid-column:2;grid-row:2}.doit-checkout .doit-landing-actions{grid-column:1;grid-row:3}.doit-checkout .doit-belt-readout{grid-column:2;grid-row:3;align-items:center}.doit-checkout label[for="package-progress"],.doit-checkout #package-progress,.doit-checkout .doit-model-result{grid-column:1 / -1}@media(max-width:700px){.doit-checkout>.doit-copy{display:block}.doit-checkout .doit-experiment-controls{display:block}.doit-package-stage{gap:1rem}}.doit-grain{margin-top:4.5rem}.doit-grain-toolbar{display:flex;gap:1.5rem 3rem;flex-wrap:wrap;margin:0 0 1.5rem}.doit-grain-toolbar label{display:flex;align-items:center;flex-wrap:wrap;gap:.75rem;font-weight:600}.doit-flow select{color:var(--global-text-color);background:var(--global-bg-color);border:1px solid var(--doit-muted);border-radius:4px;padding:.45rem .7rem;min-height:44px;max-width:100%}.doit-grain-stage{display:grid;grid-template-columns:1.6fr 1fr;gap:2rem;align-items:start}.doit-grain-stage svg{width:100%;display:block;color:var(--doit-accent)}.doit-grain-stage svg text{fill:var(--global-text-color);font-family:inherit;font-size:13px}.doit-grain-gridline{stroke:var(--doit-muted);opacity:.25;fill:none}.doit-grain-stage figcaption{font-size:.9rem;color:var(--doit-muted)}.doit-grain-finding{max-width:70ch;margin:1.5rem 0 .7rem}.doit-grain-note{color:var(--doit-muted);font-size:.85rem;max-width:75ch}@media(max-width:700px){.doit-grain-stage{grid-template-columns:1fr;gap:1.5rem}.doit-grain-stage figure:last-child{max-width:440px;width:100%}.doit-grain-toolbar{gap:1rem}}.doit-trunk{margin-top:4.5rem}.doit-trunk-comparison{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1.5rem}.doit-trunk-comparison h4{font-size:1.2rem;margin:0 0 .8rem}.doit-trunk-comparison svg{width:100%;max-height:430px;display:block;color:var(--doit-accent)}.doit-trunk-comparison svg text{fill:var(--global-text-color);font-family:inherit;font-size:16px}.doit-trunk-comparison figcaption{font-size:.85rem;color:var(--doit-muted);font-variant-numeric:tabular-nums}.doit-branch-core{fill:#e0c9aa;stroke:#73593a;stroke-width:1.2}.doit-trunk-map [data-trunk-outline]{stroke:var(--global-text-color)}.doit-trunk-legend{display:flex;align-items:center;flex-wrap:wrap;gap:.7rem;font-size:.85rem;margin-top:1.5rem}.doit-trunk-legend[hidden]{display:none}.doit-trunk-legend svg{width:140px;height:12px}@media(max-width:700px){.doit-trunk-comparison{grid-template-columns:1fr;gap:2.5rem}.doit-trunk-comparison figure{max-width:360px;width:100%;margin:0 auto}}.doit-seasons{scroll-margin-top:90px}.doit-season-controls{margin-bottom:1rem}.doit-season-controls .doit-grain-toolbar{align-items:center;gap:.8rem 1.25rem;margin-bottom:.7rem}.doit-season-view-switch{display:none!important}.doit-season-stage{display:grid;grid-template-columns:.8fr 1.3fr;gap:1.8rem;align-items:start}.doit-season-stage h4{font-size:1.1rem;margin:0 0 .5rem}.doit-season-stage svg{width:100%;display:block;color:var(--doit-accent)}.doit-season-stage svg text{fill:var(--global-text-color);font-family:inherit;font-size:18px}.doit-season-stage svg .doit-season-volume-label{fill:var(--doit-wood)}.doit-season-stage svg .doit-season-index-label{fill:var(--doit-accent)}.doit-season-stage figcaption{color:var(--doit-muted);font-size:.85rem;line-height:1.45}.doit-season-stage [data-season-panel="front"] svg{height:440px}.doit-season-stage [data-season-panel="response"] svg{height:440px}.doit-season-axis{stroke:var(--global-text-color);stroke-width:1;fill:none}.doit-season-grid{stroke:var(--doit-muted);stroke-width:.7;opacity:.25;fill:none}.doit-season-threshold{stroke:var(--global-text-color);stroke-width:1;stroke-dasharray:4 4;fill:none}.doit-season-core{fill:#e0c9aa;stroke:var(--global-text-color);stroke-width:1.3}.doit-seasons button{color:var(--global-text-color);background:var(--global-bg-color);border:1px solid var(--doit-muted);border-radius:4px;padding:.5rem .9rem;min-height:44px;cursor:pointer}.doit-seasons button:hover{border-color:var(--doit-accent);color:var(--doit-accent)}.doit-seasons .doit-season-render{max-width:580px;margin:0 auto 1.4rem}.doit-seasons .doit-season-render[hidden]{display:none}@media(max-width:900px){.doit-season-view-switch{display:flex!important}.doit-season-controls{position:sticky;top:65px;z-index:5;background:var(--global-bg-color);padding:.6rem 0}.doit-season-stage{display:block}.doit-season-stage [data-season-panel]{display:none}.doit-season-stage [data-season-panel="response"] svg{height:auto}.doit-season-stage [data-season-panel="front"] svg{height:360px}}.doit-season-actions{display:flex;gap:.8rem}.doit-season-stage figcaption{margin-top:.35rem}.doit-seasons .doit-grain-note{margin:.4rem 0 0}.doit-season-stage [data-season-panel="front"] svg text{font-size:18px}@media(min-width:901px){.doit-seasons [data-season-content]:not([hidden]){display:grid;grid-template-columns:85px minmax(0,1fr);gap:.4rem 1rem}.doit-seasons [data-season-content]>.doit-grain-toolbar{grid-column:1 / -1;margin-bottom:0;align-items:center}.doit-season-controls{grid-column:1;grid-row:2 / 4;display:flex;flex-direction:column;align-items:center;margin:0}.doit-season-controls .doit-control-label{flex-direction:column;gap:.25rem;text-align:center;margin-bottom:.5rem}.doit-season-controls input[type="range"]{writing-mode:vertical-lr;direction:rtl;width:44px;height:450px;margin:0}.doit-seasons .doit-season-render{grid-column:2;width:100%;max-width:560px;margin:0 auto}.doit-season-stage{grid-column:2;grid-template-columns:.8fr 1.4fr;gap:1rem}.doit-season-stage [data-season-panel] svg{height:320px}.doit-seasons .doit-grain-note{grid-column:2}}@media(min-width:901px) and (max-height:800px){.doit-seasons .doit-season-render{max-width:420px}.doit-season-stage [data-season-panel] svg{height:250px}.doit-season-controls input[type="range"]{height:360px}}[data-season-bars] rect{fill:var(--doit-wood-fill)}