:root{--bg: #ffffff;--fig-bg: #f7f7f5;--ink: #1b1b1b;--muted: #6b7280;--rule: #e2e2df;--accent: #2b6cb0;--focus: #2b6cb0;--c-transmit: #c2410c;--c-echo: #2563eb;--c-target: #15803d;--c-noise: #9333ea;--c-good: #15803d;--c-bad: #dc2626;--measure: 42rem;--font-body: "IBM Plex Sans", ui-sans-serif, system-ui, "Helvetica Neue", Arial, sans-serif;--step--1: .86rem;--step-0: 1.19rem;--step-1: 1.5rem;--step-2: 2rem;--step-3: 2.6rem;--lh: 1.62}@media(prefers-color-scheme:dark){:root{--bg: #0f1115;--fig-bg: #161a22;--ink: #e7e7e4;--muted: #99a0ab;--rule: #2a2f3a;--accent: #6aa9e9;--focus: #6aa9e9;--c-transmit: #f97316;--c-echo: #6aa9e9;--c-target: #4ade80;--c-noise: #c084fc;--c-good: #4ade80;--c-bad: #f87171}}*,*:before,*:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%}html,body{overflow-x:clip}body{margin:0;background:var(--bg);color:var(--ink);font:var(--step-0) / var(--lh) var(--font-body);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}.skip-link{position:fixed;top:.75rem;left:.75rem;z-index:100;padding:.5rem .9rem;border-radius:8px;background:var(--bg);color:var(--accent);border:1px solid var(--rule);box-shadow:0 4px 18px #0000002e;font-weight:600;text-decoration:none;transform:translateY(calc(-100% - 1.5rem))}.skip-link:focus{transform:none;outline:2px solid var(--focus);outline-offset:2px}.site-header{position:relative;overflow:hidden;isolation:isolate;background:#05070d;color:#fff;min-height:clamp(380px,62vh,600px);display:flex;align-items:flex-end;padding:clamp(2.4rem,6vw,3.6rem) 1.25rem clamp(2.2rem,5vw,3rem)}.site-header__scene{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;z-index:-2}.site-header__sat{position:absolute;z-index:0;pointer-events:none;opacity:0;transition:opacity .8s ease}.site-header__sat.is-ready{opacity:1}.site-header:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;z-index:-1;background:linear-gradient(to top,rgba(3,5,11,.82) 2%,rgba(3,5,11,.3) 32%,transparent 60%)}.site-header .wrap{position:relative;max-width:var(--measure);margin-inline:auto;width:100%}.site-header .kicker{margin:0 0 .85rem;color:#a3c9f2;font-size:.76rem;font-weight:600;text-transform:uppercase;letter-spacing:.16em;opacity:.95}.site-header h1{margin:0;font-size:clamp(2.4rem,6.5vw,3.6rem);font-weight:600;line-height:1.03;letter-spacing:-.025em;text-shadow:0 2px 26px rgba(0,0,0,.55)}.prose{max-width:var(--measure);margin-inline:auto;padding:clamp(2rem,5vw,3.2rem) 1.25rem 6rem}.prose>*{margin-inline:auto}.post-title{font-size:var(--step-3);font-weight:600;line-height:1.1;letter-spacing:-.02em;margin:2.2rem 0 .4rem}.post-date{color:var(--muted);font-size:var(--step--1);margin:0 0 1.5rem}.prose h2{font-size:var(--step-1);font-weight:600;margin:2.6rem 0 .6rem;letter-spacing:-.01em}.prose h3{font-size:var(--step-0);font-weight:600;margin:1.8rem 0 .4rem}.prose p{margin:0 0 1.15rem}.prose a{color:var(--accent)}.lead{font-size:1.28rem;line-height:1.5}.t-transmit{color:var(--c-transmit);font-weight:600}.t-echo{color:var(--c-echo);font-weight:600}.t-target{color:var(--c-target);font-weight:600}.t-noise{color:var(--c-noise);font-weight:600}.eq{display:block;text-align:center;font-family:"IBM Plex Math",ui-serif,Georgia,serif;font-style:italic;margin:1.3rem 0;color:var(--ink)}.note{color:var(--muted);font-size:var(--step--1);border-left:2px solid var(--rule);padding-left:.9rem;margin:1.4rem 0}.ant-table{width:100%;margin:1.4rem 0;border-collapse:collapse;font-size:var(--step--1)}.ant-table th,.ant-table td{padding:.4rem .6rem;text-align:left;border-bottom:1px solid var(--rule)}.ant-table thead th{color:var(--muted);font-weight:600}.ant-table .ant-table__group th{padding-top:1rem;color:var(--accent);font-weight:700;border-bottom:2px solid var(--rule)}@media(max-width:640px){.ant-table{display:block;overflow-x:auto}}.sources-group{color:var(--muted);font-weight:600;font-size:var(--step--1);margin:1.6rem 0 .4rem;text-transform:uppercase;letter-spacing:.06em}.source-item{margin:0 0 .25rem;font-size:var(--step--1)}.source-item a{color:var(--accent);text-decoration:none}.source-item a:hover{text-decoration:underline}@media(prefers-reduced-motion:reduce){*,*:before,*:after{transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important;scroll-behavior:auto!important}}@media print{:root{--bg: #ffffff;--fig-bg: #f7f7f5;--ink: #1b1b1b;--muted: #6b7280;--rule: #e2e2df;--accent: #2b6cb0;--focus: #2b6cb0;--c-transmit: #c2410c;--c-echo: #2563eb;--c-target: #15803d;--c-noise: #9333ea;--c-good: #15803d;--c-bad: #dc2626}body{background:#fff;color:var(--ink)}.toc,.toc-fab,.toc-backdrop,.skip-link,.fig__controls,.fig__pause{display:none!important}.site-header{min-height:0;background:#fff;color:var(--ink);padding:1.5rem 1.25rem .5rem}.site-header__scene,.site-header__sat{display:none!important}.site-header:after{display:none}.site-header h1{text-shadow:none}.site-header .kicker{color:var(--accent)}.fig{break-inside:avoid}.prose details.go-deeper{display:block}.prose details.go-deeper>*:not(summary){display:block}.prose details.go-deeper>summary:before{content:""}details.go-deeper::details-content{content-visibility:visible;display:block}}.fig{margin:2rem auto;padding:.75rem;background:var(--fig-bg);border:1px solid var(--rule);border-radius:10px}.fig--wide{width:min(52rem,calc(100vw - 2rem));margin-left:50%;transform:translate(-50%)}.fig__stage{position:relative;width:100%}.fig__pause{position:absolute;top:8px;right:8px;z-index:5;width:30px;height:30px;padding:0;display:grid;place-items:center;border-radius:50%;border:1px solid var(--rule);background:var(--fig-bg);background:color-mix(in srgb,var(--fig-bg) 78%,transparent);color:var(--muted);cursor:pointer;opacity:.85;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);transition:opacity .14s ease,color .14s ease,background .14s ease}.fig__stage:hover .fig__pause,.fig__pause[aria-pressed=true],.fig__pause:focus-visible{opacity:1}@media(hover:none){.fig__pause{opacity:1}}.fig__pause:hover{color:var(--ink);background:var(--fig-bg)}.fig__pause:focus-visible{outline:2px solid var(--focus);outline-offset:2px}.fig__canvas{display:block;width:100%;aspect-ratio:16 / 9;border-radius:6px}.fig__canvas--3d{aspect-ratio:4 / 3;cursor:grab}.fig--tall .fig__canvas{aspect-ratio:16 / 11}@media(max-width:640px){.fig--tall .fig__canvas{aspect-ratio:5 / 6}}.fig__canvas--3d:active{cursor:grabbing}.fig figcaption{color:var(--muted);font-size:var(--step--1);line-height:1.5;margin-top:.7rem;padding:0 .25rem}.fig__readout{display:flex;flex-wrap:wrap;gap:.4rem 1.1rem;margin-top:.6rem;padding:0 .25rem;font-size:var(--step--1);color:var(--muted)}.fig__readout b{color:var(--ink);font-variant-numeric:tabular-nums}.game__overlay{position:absolute;top:0;right:0;bottom:0;left:0;z-index:6;display:flex;align-items:center;justify-content:center;background:color-mix(in srgb,var(--fig-bg) 72%,transparent);-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);border-radius:6px}.game__card{max-width:30rem;margin:1rem;padding:1.1rem 1.3rem;background:var(--bg);border:1px solid var(--rule);border-radius:10px;box-shadow:0 10px 34px #00000038}.game__card h3{margin:0 0 .5rem;font-size:1.05rem}.game__card p{margin:0 0 .7rem;font-size:var(--step--1);line-height:1.5;color:var(--muted)}.game__btn{font:600 .8rem/1 var(--font-body);color:var(--ink);background:var(--fig-bg);border:1px solid var(--rule);border-radius:7px;padding:.45rem .6rem;cursor:pointer}.game__btn:hover:not(:disabled){border-color:var(--accent);color:var(--accent)}.game__btn:disabled{opacity:.4;cursor:default}.game__btn:focus-visible{outline:2px solid var(--focus);outline-offset:2px}.game__btn--primary{background:var(--accent);border-color:var(--accent);color:#fff;padding:.55rem 1rem}.game__btn--primary:hover{color:#fff;filter:brightness(1.08)}.game__panel{margin-top:.6rem}.game__row{display:flex;flex-wrap:wrap;align-items:center;gap:.45rem}.game__group{display:inline-flex;gap:.3rem}.game__sel{font-size:var(--step--1);font-weight:600;min-width:11rem}.game__freq{flex:1 1 4rem;height:6px;min-width:3rem;border-radius:3px;background:var(--rule);overflow:hidden;align-self:center}.game__freq i{display:block;height:100%;width:0;background:var(--c-transmit)}.game__log{margin-top:.45rem;font-size:.78rem;color:var(--muted);font-family:ui-monospace,SFMono-Regular,Menlo,monospace;display:flex;flex-direction:column;gap:.1rem;min-height:2.1em}@media(max-width:640px){.game__sel{min-width:100%}}.fig--error:after{content:"This figure failed to load.";display:block;padding:2rem;text-align:center;color:var(--c-bad);font-size:var(--step--1)}.fig:not(:has(.fig__stage,.fig__canvas)){min-height:240px}@media(max-width:640px){.fig__canvas{aspect-ratio:4 / 3}}.fig__controls{display:flex;flex-wrap:wrap;gap:.6rem 1.4rem;margin-top:.85rem;padding:.2rem .25rem 0}.ctl{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:.6rem;min-width:15rem;flex:1 1 15rem}.ctl__label{color:var(--muted);font-size:var(--step--1);white-space:nowrap}.ctl__val{font-variant-numeric:tabular-nums;font-size:var(--step--1);color:var(--ink);min-width:5.5ch;text-align:right}.ctl--toggle{grid-template-columns:auto auto;justify-content:start;min-width:0;flex:0 0 auto;gap:.45rem}.ctl--seg{grid-template-columns:auto 1fr}.seg{display:inline-flex;gap:2px;padding:3px;justify-self:start;border:1px solid var(--rule);border-radius:9px;background:var(--fig-bg)}.seg__btn{border:0;background:transparent;color:var(--muted);font:inherit;font-size:var(--step--1);line-height:1.5;padding:.26rem .7rem;cursor:pointer;border-radius:6px;white-space:nowrap;transition:background .12s ease,color .12s ease}.seg__btn:hover{color:var(--ink)}.seg__btn.is-active{background:var(--accent);color:#fff}@media(prefers-color-scheme:dark){.seg__btn.is-active{color:#0b1220}}.seg__btn:focus-visible{outline:2px solid var(--focus);outline-offset:2px}input[type=range]{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:100%;height:1.4rem;background:transparent;cursor:pointer;margin:0}input[type=range]::-webkit-slider-runnable-track{height:3px;background:var(--rule);border-radius:2px}input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:15px;height:15px;margin-top:-6px;border-radius:50%;background:var(--accent)}input[type=range]::-moz-range-track{height:3px;background:var(--rule);border-radius:2px}input[type=range]::-moz-range-thumb{width:15px;height:15px;border:0;border-radius:50%;background:var(--accent)}input[type=range]:focus-visible{outline:2px solid var(--focus);outline-offset:4px}input[type=checkbox]{width:1.05rem;height:1.05rem;accent-color:var(--accent)}@media(max-width:640px){.ctl{min-width:100%}input[type=range]{height:1.9rem}}.site-header__sub{margin:.85rem 0 0;font-size:clamp(1.05rem,2.4vw,1.28rem);font-weight:400;line-height:1.35;opacity:.86;letter-spacing:-.005em;max-width:34rem}.prose h1.part-divider{font-size:var(--step-3);font-weight:600;line-height:1.1;letter-spacing:-.02em;margin:3.4rem 0 1.2rem;padding-top:1.6rem;border-top:1px solid var(--rule)}.prose h1.part-divider:first-child{border-top:0;padding-top:0}.part-divider__num{display:block;font-size:.9rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--accent);margin-bottom:.35rem}.toc{position:fixed;top:1.75rem;right:1rem;bottom:1.5rem;width:12.5rem;overflow-y:auto;overscroll-behavior:contain;z-index:15;padding-right:.4rem;transition:opacity .25s ease}.toc.is-hidden{opacity:0;visibility:hidden;pointer-events:none}.toc__list{display:flex;flex-direction:column;gap:.18rem}.toc__item{text-decoration:none;line-height:1.3;border-right:2px solid transparent;padding:.05rem .6rem .05rem 0;text-align:right;transition:color .15s,opacity .15s}.toc__item--part{font-size:.8rem;font-weight:600;color:var(--ink);margin-top:.55rem}.toc__item--part:first-child{margin-top:0}.toc__item--sec{font-size:.78rem;color:var(--muted)}.toc__item:hover{color:var(--accent);opacity:1}.toc__item.is-active{color:var(--accent);opacity:1;border-right-color:var(--accent);font-weight:600}.toc::-webkit-scrollbar{width:5px}.toc::-webkit-scrollbar-thumb{background:var(--rule);border-radius:3px}.toc-fab{display:none;position:fixed;right:1rem;bottom:1.25rem;z-index:65;align-items:center;padding:.55rem 1rem;border-radius:999px;border:1px solid var(--rule);background:var(--bg);color:var(--ink);font:600 .86rem/1 var(--font-body);cursor:pointer;box-shadow:0 4px 18px #0000002e}.toc-fab:hover{color:var(--accent)}.toc-fab:focus-visible{outline:2px solid var(--focus);outline-offset:2px}.toc-backdrop{display:none;position:fixed;top:0;right:0;bottom:0;left:0;z-index:55;background:#00000073;opacity:0;visibility:hidden;pointer-events:none;transition:opacity .2s ease}.toc-backdrop.is-open{opacity:1;visibility:visible;pointer-events:auto}@media(max-width:1180px){.toc{display:none}.toc.is-open{display:block;top:auto;left:auto;right:1rem;bottom:4.75rem;width:min(21rem,calc(100vw - 2rem));max-height:min(70vh,34rem);padding:1rem 1.1rem;background:var(--bg);border:1px solid var(--rule);border-radius:12px;box-shadow:0 14px 44px #0000004d;opacity:1;visibility:visible;pointer-events:auto;z-index:60}.toc.is-open .toc__item{text-align:left;border-right:0;border-left:2px solid transparent;padding:.12rem 0 .12rem .6rem}.toc.is-open .toc__item.is-active{border-left-color:var(--accent)}.toc-fab{display:inline-flex}.toc-backdrop{display:block}}.gloss{position:relative;border-bottom:1px dotted var(--muted);cursor:help}.gloss__i{font-size:.6em;color:var(--accent);font-weight:700;font-style:normal;margin-left:1px;vertical-align:super}.gloss__pop{position:absolute;bottom:calc(100% + 9px);left:50%;transform:translate(calc(-50% + var(--pop-shift, 0px)));width:max-content;max-width:min(17rem,calc(100vw - 2.5rem));padding:.6rem .75rem;border-radius:8px;background:var(--ink);color:var(--bg);font-size:.8rem;font-weight:400;line-height:1.42;text-align:left;white-space:normal;box-shadow:0 6px 20px #00000047;z-index:30;opacity:0;visibility:hidden;transition:opacity .12s ease}.gloss__pop:after{content:"";position:absolute;top:100%;left:calc(50% - var(--pop-shift, 0px));transform:translate(-50%);border:6px solid transparent;border-top-color:var(--ink)}.gloss:hover .gloss__pop,.gloss:focus .gloss__pop,.gloss:focus-within .gloss__pop,.gloss.is-open .gloss__pop{opacity:1;visibility:visible}.gloss:focus-visible{outline:2px solid var(--focus);outline-offset:2px;border-radius:2px}.entity{position:relative;border-bottom:1px dotted var(--accent);color:var(--accent);font-weight:600;cursor:help}.entity__card{position:absolute;top:calc(100% + 10px);left:var(--pop-shift, 0px);display:flex;gap:.7rem;align-items:flex-start;width:max-content;max-width:min(20rem,calc(100vw - 2.5rem));padding:.75rem .85rem;border-radius:10px;background:var(--bg);color:var(--ink);border:1px solid var(--rule);box-shadow:0 10px 28px #00000038;z-index:40;opacity:0;visibility:hidden;transform:translateY(-4px);transition:opacity .14s ease,transform .14s ease;pointer-events:none;text-align:left;font-weight:400}.entity__card:before{content:"";position:absolute;top:-12px;left:0;right:0;height:12px}.entity:hover .entity__card,.entity:focus .entity__card,.entity:focus-within .entity__card{opacity:1;visibility:visible;transform:translateY(0);pointer-events:auto}.entity__thumb{flex:0 0 46px;width:46px;height:46px;border-radius:8px;background:var(--fig-bg);display:grid;place-items:center}.entity__body{display:flex;flex-direction:column;gap:.15rem}.entity__name{font-size:.95rem;color:var(--ink)}.entity__blurb{font-size:.8rem;color:var(--muted);line-height:1.35}.entity__link{font-size:.8rem;color:var(--accent);text-decoration:none;margin-top:.25rem;font-weight:600}.entity__link:hover{text-decoration:underline}.entity:focus-visible{outline:2px solid var(--focus);outline-offset:2px;border-radius:2px}.prose details.go-deeper{margin:1.4rem 0;border:1px solid var(--rule);border-radius:10px;background:var(--fig-bg);padding:0 1rem}.prose details.go-deeper>summary{cursor:pointer;padding:.8rem 0;font-weight:600;color:var(--accent);list-style:none;display:flex;align-items:center;gap:.5rem}.prose details.go-deeper>summary::-webkit-details-marker{display:none}.prose details.go-deeper>summary:before{content:"▸";transition:transform .15s;font-size:.85em}.prose details.go-deeper[open]>summary:before{transform:rotate(90deg)}.prose details.go-deeper>summary:hover{color:var(--ink)}.prose details.go-deeper>*:not(summary){margin-bottom:1rem}.prose details.go-deeper p:first-of-type{margin-top:.2rem}
