@layer reset{*,:before,:after{box-sizing:border-box}html{text-size-adjust:100%}body,blockquote,dd,dl,figure,h1,h2,h3,p,ol,ul{margin:0}ol{padding:0;list-style:none}[hidden]{display:none!important}}@layer tokens{:root{color-scheme:light dark;--ink:#1c2019;--ink-muted:#596053;--paper:#f2efe7;--paper-raised:#faf8f2;--line:#c8c9bd;--accent:#b74425;--accent-soft:#f2d2c4;--night:#192236;--on-night:#f2efe7;--focus:#006ed6;--shadow:0 1.2rem 3rem #2e322717;--font-sans:Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-serif:Iowan Old Style, Baskerville, "Times New Roman", serif;--step--1:clamp(.78rem, .74rem + .18vw, .88rem);--step-0:clamp(1rem, .94rem + .28vw, 1.16rem);--step-1:clamp(1.26rem, 1.11rem + .72vw, 1.68rem);--step-2:clamp(1.68rem, 1.34rem + 1.62vw, 2.58rem);--step-3:clamp(2.55rem, 1.76rem + 3.72vw, 4.8rem);--space-1:.5rem;--space-2:.8rem;--space-3:1.2rem;--space-4:1.8rem;--space-5:2.8rem;--space-6:clamp(4rem, 9vw, 8rem);--mark-inline:1.25rem;--mark-feature:3rem;--page:min(100% - 2rem, 76rem);--project-text:1.5rem}:root[data-atlas-mode=project]{--step--1:var(--project-text);--step-0:var(--project-text);--step-1:clamp(1.8rem, 5vw, 2.4rem);--step-2:clamp(2.35rem, 6vw, 4rem);--step-3:clamp(3rem, 8vw, 6.5rem);--mark-inline:1.75rem;--mark-feature:4.5rem;--page:min(100% - 1rem, 90rem)}@media (prefers-color-scheme:dark){:root{--ink:#eef0e8;--ink-muted:#b0b6a8;--paper:#11130f;--paper-raised:#191c16;--line:#3e443a;--accent:#f47d56;--accent-soft:#4a281e;--night:#a9c4f3;--focus:#73b8ff;--shadow:0 1.2rem 3rem #0000003d}}}@layer base{html{background:var(--paper);min-width:20rem;font-family:var(--font-sans)}body{min-height:100vh;color:var(--ink);background:radial-gradient(circle at 85% 7%, color-mix(in srgb, var(--accent-soft) 55%, transparent) 0 8rem, transparent 8.1rem), var(--paper);font-size:var(--step-0);line-height:1.55}a{color:inherit}:focus-visible{outline:.2rem solid var(--focus);outline-offset:.22rem}h1,h2,h3{font-family:var(--font-serif);letter-spacing:-.035em;text-wrap:balance;font-weight:600;line-height:.98}h1{max-width:12ch;font-size:var(--step-3)}h2{font-size:var(--step-2)}h3{font-size:var(--step-1);line-height:1.1}main,.site-header,.site-footer{width:var(--page);margin-inline:auto}}@layer components{.skip-link{z-index:10;background:var(--ink);color:var(--paper);border-radius:999px;padding:.65rem .9rem;font-weight:700;position:fixed;inset:.75rem auto auto .75rem;transform:translateY(-200%)}.skip-link:focus{transform:translateY(0)}.site-header{justify-content:space-between;align-items:center;gap:var(--space-3);border-bottom:1px solid var(--line);min-height:5rem;display:flex}.wordmark{font-size:var(--step--1);letter-spacing:.06em;text-transform:uppercase;align-items:center;gap:.65rem;font-weight:800;text-decoration:none;display:inline-flex}.wordmark-orbit{aspect-ratio:1;border:1px solid var(--ink-muted);border-radius:50%;width:1.35rem;position:relative}.wordmark-orbit:after{aspect-ratio:1;background:var(--accent);content:"";border-radius:50%;width:.4rem;position:absolute;inset:-.08rem .08rem auto auto}.release-mark,.eyebrow,.card-eyebrow{color:var(--ink-muted);font-size:var(--step--1);letter-spacing:.075em;text-transform:uppercase;font-weight:750}.featured-excerpt{gap:var(--space-3);padding-block:var(--space-4) var(--space-5);display:grid}.featured-heading,.featured-answer{gap:var(--space-2);display:grid}.featured-excerpt h1{max-width:16ch;font-size:var(--step-2)}.featured-context,.card-summary,.world-action,.index-scale-note,.index-credit{color:var(--ink-muted)}.featured-context,.index-scale-note,.index-credit{font-size:var(--step--1)}.featured-answer .metric-answer{margin-top:0}.excerpt-link{background:var(--ink);width:fit-content;color:var(--paper);border-radius:999px;padding:.75rem 1rem;font-weight:800;text-decoration:none}.atlas-index{padding-block:var(--space-5);border-top:1px solid var(--line)}.section-heading{gap:var(--space-2);max-width:42rem;margin-bottom:var(--space-5);display:grid}.question-groups,.question-group,.question-grid,.world-grid{gap:var(--space-3);display:grid}.question-groups{gap:var(--space-5)}.question-grid,.world-grid{padding:0;list-style:none}.question-card,.world-card{min-width:0}.card-link,.world-card-link{gap:var(--space-2);height:100%;padding:var(--space-4);border:1px solid var(--line);background:var(--paper-raised);box-shadow:var(--shadow);border-radius:1.2rem;text-decoration:none;display:grid}.card-link:hover,.world-card-link:hover{border-color:var(--accent)}.card-question{font-family:var(--font-serif);font-size:var(--step-1);text-wrap:balance;font-weight:600;line-height:1.2}.card-summary{max-width:42rem}.world-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.world-card-link{min-height:10.5rem;padding:var(--space-3);text-align:center;place-items:center}.world-name{font-weight:800}.world-action{font-size:var(--step--1)}.index-scale-note{margin-bottom:var(--space-2);font-weight:700}.index-credit{margin-top:var(--space-3);line-height:1.45}.site-footer{padding-block:var(--space-4) var(--space-5);border-top:1px solid var(--line);color:var(--ink-muted);font-size:var(--step--1);gap:.25rem;display:grid}.keyboard-reference{width:var(--page);gap:var(--space-2);margin:var(--space-5) auto 0;padding:var(--space-4);border:1px solid var(--line);background:var(--paper-raised);border-radius:1rem;display:grid}.keyboard-reference dl{gap:var(--space-2);display:grid}.keyboard-reference dl>div{align-items:baseline;gap:var(--space-2);grid-template-columns:2.5rem minmax(0,1fr);display:grid}.keyboard-reference kbd{border:1px solid var(--line);background:var(--paper);min-width:2rem;min-height:2rem;font:inherit;border-bottom-width:.2rem;border-radius:.4rem;place-items:center;padding-inline:.35rem;font-weight:800;display:inline-grid}.visually-hidden{clip:rect(0 0 0 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}@media (width>=48rem){.featured-excerpt{align-items:end;gap:var(--space-5);grid-template-columns:minmax(0,1.2fr) minmax(18rem,.8fr)}.question-groups{grid-template-columns:repeat(2,minmax(0,1fr));align-items:start}.world-grid{grid-template-columns:repeat(4,minmax(0,1fr))}}@media (width>=68rem){.world-grid{grid-template-columns:repeat(6,minmax(0,1fr))}}}@layer project{html[data-atlas-mode=project] body{font-size:var(--project-text)}html[data-atlas-mode=project]{scroll-padding-top:9rem}@media (width<=35rem){html[data-atlas-mode=project]{scroll-padding-top:12rem}html[data-atlas-mode=project] .project-mode-bar p{display:none}}html[data-atlas-mode=project] .site-header,html[data-atlas-mode=project] .site-footer,html[data-atlas-mode=project] .metric-actions{display:none}html[data-atlas-mode=project] .skip-link,html[data-atlas-mode=project] :is(main,.keyboard-reference) :where(a,button,caption,cite,code,dd,dt,figcaption,h4,input,kbd,label,li,option,p,select,span,strong,summary,td,th){font-size:max(1em, var(--project-text))}html[data-atlas-mode=project] .metric-table td[data-label]:before{font-size:var(--project-text)}html[data-atlas-mode=project] .metric-chart-svg,html[data-atlas-mode=project] .metric-chart figcaption{max-width:56.25rem}@media (width<=28.25rem){html[data-atlas-mode=project] .metric-table tbody tr,html[data-atlas-mode=project] .passport-facts>div,html[data-atlas-mode=project] .state-definitions div{grid-template-columns:minmax(0,1fr)}html[data-atlas-mode=project] .metric-table td:last-child{grid-column:1}}}@layer utilities{@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto;transition-duration:.01ms}}}:root{color-scheme:dark;--ink:#e8e3d5;--ink-muted:#8a857a;--paper:#0e0e0d;--paper-raised:#0e0e0d;--line:#2a2926;--line-strong:#403e39;--accent:#d0543b;--accent-soft:#2a1a16;--focus:#e8e3d5;--font-sans:Geist, Inter, ui-sans-serif, system-ui, sans-serif;--font-mono:"Geist Mono", "SFMono-Regular", Consolas, monospace;--page:min(100% - 2rem, 88rem)}html,body{background:var(--paper)}body{color:var(--ink);font-family:var(--font-sans);background-image:none}h1,h2,h3{font-family:var(--font-sans);letter-spacing:-.045em;font-weight:520}button,input,select{font:inherit}.site-header{border-color:var(--line);min-height:3.5rem}.wordmark{font-family:var(--font-mono);letter-spacing:.12em;gap:0;font-size:.72rem;font-weight:500}.site-navigation,.site-footer nav{font-family:var(--font-mono);letter-spacing:.04em;text-transform:uppercase;gap:1.25rem;font-size:.7rem;display:flex}.site-navigation a,.site-footer a{color:var(--ink-muted);text-decoration:none}.site-navigation a:hover,.site-navigation a:focus-visible,.site-footer a:hover,.site-footer a:focus-visible{color:var(--ink)}.site-footer{border-top:1px solid var(--line);min-height:5rem;color:var(--ink-muted);font-family:var(--font-mono);justify-content:space-between;align-items:center;gap:1rem;margin-top:5rem;font-size:.68rem;display:flex}.instrument{width:100%;margin-inline:auto}.index-label,.control-readout,.simulation-clock,.gravity-value,.gravity-unit,.gravity-legend,.flight-state,.flight-readout,.rotation-world figcaption span,.evidence-dossier summary,.field-guide-index summary{font-family:var(--font-mono)}.index-label{color:var(--accent);letter-spacing:.08em;text-transform:uppercase;padding-top:.45rem;font-size:.69rem}.instrument-controls,.rotation-controls{border-bottom:1px solid var(--line);grid-template-columns:minmax(13rem,1fr) minmax(18rem,3fr);align-items:center;gap:.8rem 1.5rem;padding:1.1rem 0;display:grid}.control-readout{color:var(--ink-muted);letter-spacing:.02em;text-transform:uppercase;justify-content:space-between;gap:1rem;font-size:.74rem;display:flex}.control-readout output{color:var(--ink);font-variant-numeric:tabular-nums}input[type=range]{width:100%;height:1.75rem;accent-color:var(--accent);cursor:ew-resize}.control-actions{grid-column:2;align-items:center;gap:1.25rem;display:flex}.release-button,.play-button{border:1px solid var(--accent);min-height:2.75rem;color:var(--ink);cursor:pointer;background:0 0;border-radius:2px;padding:0 1.1rem}.release-button:hover,.release-button:focus-visible,.play-button:hover,.play-button:focus-visible{background:var(--accent)}.scale-toggle{min-height:2.75rem;color:var(--ink-muted);cursor:pointer;font-family:var(--font-mono);text-transform:uppercase;align-items:center;gap:.55rem;font-size:.72rem;display:flex}.scale-toggle input{width:1rem;height:1rem;accent-color:var(--accent)}.simulation-clock{color:var(--ink-muted);font-variant-numeric:tabular-nums;margin-left:auto;font-size:.74rem}.world-portrait{object-fit:contain;pointer-events:none;transform:scale(var(--portrait-scale,1));transform-box:fill-box;transform-origin:50%;mix-blend-mode:screen}.world-portrait-frame{flex:none;place-items:center;width:5rem;height:2.25rem;display:grid;position:relative}.world-portrait-frame>.world-portrait{width:2rem;max-width:none;height:2rem}[data-world-portrait=mars].world-portrait,[data-world-portrait=mars]>.world-portrait{clip-path:circle(39%)}.flight-stage{border-bottom:1px solid var(--line-strong);scrollbar-color:var(--line-strong) transparent;overflow-x:auto}.flight-grid{width:100%;min-width:62rem;height:auto;display:block}.flight-lab[data-layout=compact] .flight-grid{min-width:0}.flight-cell{fill:#0000;stroke:var(--line);stroke-width:1px}.flight-name{fill:var(--ink);font-family:var(--font-sans);font-size:14px;font-weight:560}.flight-state,.flight-readout{fill:var(--ink-muted);font-family:var(--font-mono);letter-spacing:.05em;font-size:9px}.flight-state[data-kind=escape]{fill:var(--accent)}.flight-path{fill:none;stroke:var(--ink-muted);stroke-width:1.2px;vector-effect:non-scaling-stroke}.flight-path[data-kind=orbit]{stroke:var(--ink)}.flight-path[data-kind=escape]{stroke:var(--accent)}.flight-body-disc{fill:#080808;stroke:var(--line-strong);stroke-width:1px}.flight-dot{fill:var(--accent);stroke:var(--paper);stroke-width:1.2px;vector-effect:non-scaling-stroke}.flight-lab[data-scale=physical] .flight-body-image{opacity:.9}.gravity-register{border-bottom:1px solid var(--line-strong);grid-template-columns:minmax(10rem,1fr) minmax(20rem,5fr);gap:2rem;padding:clamp(3rem,7vw,6rem) 0;display:grid}.gravity-register h2{font-family:var(--font-mono);letter-spacing:-.03em;margin-top:.5rem;font-size:clamp(1.25rem,2.5vw,2.3rem)}.gravity-legend{color:var(--ink-muted);text-transform:uppercase;gap:.4rem;margin-top:1.25rem;font-size:.65rem;display:grid}.gravity-legend span{align-items:center;gap:.5rem;display:flex}.gravity-legend i{width:1.35rem;height:2px;display:inline-block}.effective-key,.effective-bar{background:var(--ink-muted)}.mass-key,.mass-bar{background:var(--ink)}.gravity-chart{gap:0;display:grid}.gravity-chart li{border-top:1px solid var(--line);grid-template-columns:minmax(7rem,.8fr) minmax(8rem,3fr) 3rem;align-items:center;gap:1rem;min-height:3.35rem;font-size:.78rem;display:grid}.gravity-pair{gap:.38rem;display:grid}.gravity-series{grid-template-columns:minmax(5rem,1fr) 3rem;align-items:center;gap:.75rem;display:grid}.gravity-chart li:last-child{border-bottom:1px solid var(--line)}.gravity-world{align-items:center;gap:.6rem;display:flex}.gravity-world .world-portrait-frame{width:3.75rem;height:1.5rem}.gravity-world .world-portrait{width:1.5rem;height:1.5rem}.gravity-track{background:var(--line-strong);height:1px;display:block}.gravity-track span{width:var(--value);height:2px;display:block;transform:translateY(-.5px)}.gravity-value{color:var(--ink-muted);font-variant-numeric:tabular-nums;text-align:right;font-size:.7rem}.gravity-unit{color:var(--ink-muted);font-size:.64rem}.rotation-controls{font-family:var(--font-mono);text-transform:uppercase;grid-template-columns:auto minmax(16rem,1fr);align-items:start;font-size:.72rem}.rotation-speed-control{min-width:0}.rotation-speed-heading{justify-content:space-between;gap:1rem;display:flex;position:relative}.rotation-speed-heading output{color:var(--ink-muted);font-variant-numeric:tabular-nums;text-align:right}.rotation-speed-track{position:relative}.rotation-speed-track input{z-index:1;display:block;position:relative}.rotation-realtime-mark{color:var(--ink-muted);font:inherit;text-transform:uppercase;background:0 0;border:0;padding:0;font-size:.58rem;line-height:1;position:absolute;top:0;left:50%;transform:translate(-50%)}.rotation-realtime-mark:after{background:var(--ink-muted);content:"";width:1px;height:1rem;position:absolute;top:calc(100% + .2rem);left:50%}.rotation-realtime-mark:hover,.rotation-realtime-mark:focus-visible{color:var(--ink)}.rotation-field{border-bottom:1px solid var(--line-strong);grid-template-columns:repeat(4,1fr);display:grid;position:relative}.rotation-sphere-canvas{z-index:1;opacity:0;pointer-events:none;width:100%;height:100%;transition:opacity .16s ease-out;position:absolute;inset:0}.rotation-lab[data-spheres-ready] .rotation-sphere-canvas{opacity:1}.orbital-normal{display:none}.rotation-world{z-index:2;border-right:1px solid var(--line);border-bottom:1px solid var(--line);min-width:0;margin:0;padding:1.4rem 1rem 1.2rem;position:relative;overflow:hidden}.rotation-world:nth-child(4n){border-right:0}.rotation-world:nth-last-child(-n+4){border-bottom:0}.rotation-world:before{background:var(--line);content:"";width:1px;position:absolute;top:2.2rem;bottom:4.1rem;left:50%}.axis-frame{aspect-ratio:1;width:min(100%,12rem);transform:rotate(var(--tilt));transform-origin:50%;margin:0 auto .75rem;position:relative}.sphere-slot{width:75%;height:75%;position:absolute;inset:12.5%}.sphere-portrait{object-fit:contain;filter:saturate(.88)contrast(1.04);width:100%;height:100%;transform:rotate(calc(-1 * var(--tilt))) scale(var(--portrait-scale,1));transition:opacity .16s ease-out;position:absolute;inset:0}.sphere-map-fallback{opacity:0;pointer-events:none;background-position:50%;background-repeat:repeat-x;background-size:200% 100%;border-radius:50%;width:100%;height:100%;transition:opacity .16s ease-out;display:block;position:absolute;inset:0;overflow:hidden;box-shadow:inset 22px -16px 30px #00000061,inset -5px 8px 15px #e8e3d514}.saturn-ring{object-fit:contain;opacity:0;pointer-events:none;width:220%;max-width:none;height:220%;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.saturn-ring-back{mask-image:radial-gradient(circle closest-side,#0000 45%,#000 46%)}.saturn-ring-front{clip-path:inset(50% 0 0)}.rotation-lab[data-spheres-ready] .rotation-world[data-rotation-world=saturn].is-texture-ready .saturn-ring,.rotation-lab[data-spheres-ready][data-sphere-renderer=css] .sphere-map-fallback{opacity:1}.rotation-lab[data-spheres-ready] .rotation-world.is-texture-ready .sphere-portrait{opacity:0}.axis-line,.equator-line{z-index:2;pointer-events:none;display:block;position:absolute}.axis-line{background:var(--accent);width:1px;top:2%;bottom:2%;left:50%}.equator-line{border-top:1px solid #e8e3d58c;border-radius:50%;height:1px;top:50%;left:10%;right:10%}.rotation-marker{z-index:3;top:50%;left:calc(50% + var(--marker-x,0%));opacity:0;pointer-events:none;width:1.4rem;height:1.4rem;transform:translate(-50%, -50%) scaleX(var(--marker-depth,1));transform-origin:50%;position:absolute;overflow:hidden}.rotation-marker svg{width:100%;height:100%;display:block}.rotation-lab[data-sphere-renderer=webgl] .rotation-marker{visibility:hidden}.is-tilt-unknown .axis-line{background:repeating-linear-gradient(to bottom, var(--ink-muted) 0 3px, transparent 3px 6px)}.rotation-world figcaption{z-index:2;gap:.22rem;display:grid;position:relative}.rotation-world figcaption strong{font-size:.82rem;font-weight:550}.rotation-world figcaption span{color:var(--ink-muted);font-variant-numeric:tabular-nums;font-size:.62rem}.evidence-dossier{border-bottom:1px solid var(--line-strong)}.evidence-dossier summary{min-height:3.5rem;color:var(--ink-muted);cursor:pointer;letter-spacing:.06em;text-transform:uppercase;padding:1.15rem 0;font-size:.7rem;list-style-position:inside}.evidence-dossier[open] summary{color:var(--ink)}.dossier-grid{color:var(--ink-muted);grid-template-columns:repeat(2,1fr);gap:clamp(2rem,6vw,6rem);padding:1rem 0 3rem;font-size:.82rem;line-height:1.6;display:grid}.dossier-grid h2{color:var(--ink);font-family:var(--font-mono);letter-spacing:.05em;text-transform:uppercase;margin-bottom:.8rem;font-size:.7rem}.dossier-grid p+p{margin-top:.8rem}.portrait-credits{gap:.35rem;margin-top:.75rem;padding-left:1rem;font-size:.68rem;display:grid}.portrait-credits a{color:inherit}@media (width<=56rem){.gravity-register{grid-template-columns:1fr}.control-actions{grid-column:1}.instrument-controls{grid-template-columns:1fr}.rotation-field{grid-template-columns:repeat(3,1fr)}.rotation-world:nth-child(4n){border-right:1px solid var(--line)}.rotation-world:nth-child(3n){border-right:0}.rotation-world:nth-last-child(-n+4){border-bottom:1px solid var(--line)}.rotation-world:nth-last-child(-n+3){border-bottom:0}.gravity-register{gap:1.5rem}}@media (width<=38rem){.site-navigation{flex-wrap:wrap;gap:.5rem}:root{--page:min(100% - 1.25rem, 88rem)}.site-footer,.dossier-grid{grid-template-columns:1fr}.site-footer{padding:1rem 0;display:grid}.rotation-controls{grid-template-columns:1fr}.rotation-controls .play-button{justify-self:start}.rotation-field{grid-template-columns:repeat(2,1fr)}.rotation-world:nth-child(3n){border-right:1px solid var(--line)}.rotation-world:nth-child(2n){border-right:0}.rotation-world:nth-last-child(-n+3){border-bottom:1px solid var(--line)}.rotation-world:nth-last-child(-n+2){border-bottom:0}.axis-frame{width:9rem}.gravity-chart li{grid-template-columns:5.7rem 1fr 2.25rem;gap:.6rem}.gravity-world .world-portrait-frame{display:none}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important}}