:root{--cream:#f4f1e8;--surface:#fbf9f2;--ink:#0d0d0d;--purple:#2e1f4a;--purple-mid:#4e3380;--violet:#8254ff;--sage:#6a9485;--rule:#ddd7c8;--muted:#5f5a52;--sans:Inter, ui-sans-serif, system-ui, -apple-system, sans-serif;--display:"Space Grotesk", Inter, ui-sans-serif, system-ui, sans-serif;--mono:ui-monospace, SFMono-Regular, "SF Mono", Menlo, monospace;--measure:40rem;--toc-col:0px;--ref-col:0px;--col-gap:0px}@media (width>=61.25em){:root{--toc-col:13.75rem;--ref-col:13.75rem;--col-gap:1.875rem}}@media (width>=80em){:root{--toc-col:15rem;--ref-col:15rem;--col-gap:3.75rem}}*,:before,:after{box-sizing:border-box}body{background:var(--cream);color:var(--ink);font-family:var(--sans);-webkit-font-smoothing:antialiased;text-rendering:optimizelegibility;margin:0;font-size:1.0625rem;line-height:1.68}.site-header{border-bottom:1px solid var(--rule);padding:1.25rem 1.5rem}.site-header .inner{justify-content:space-between;align-items:center;gap:1rem;max-width:72rem;margin:0 auto;display:flex}.brand{align-items:center;text-decoration:none;display:inline-flex}.toc-title,.article-header .byline{font-family:var(--sans)}.brand__mark{width:8.25rem;height:auto;display:block}@media (width<=45em){.brand__mark{width:6.5rem}}.top-nav{font-family:var(--sans);gap:1.5rem;font-size:.875rem;display:flex}.top-nav a{color:var(--muted);text-decoration:none}.top-nav a:hover,.top-nav a[aria-current=page]{color:var(--purple)}.site-footer{border-top:1px solid var(--rule);font-family:var(--sans);color:var(--muted);margin-top:5rem;padding:2rem 1.5rem;font-size:.8125rem}.site-footer .inner{max-width:72rem;margin:0 auto}.article{padding:3.5rem 1.5rem 0}.article-header{max-width:var(--measure);margin:0 auto}.article-header h1{font-family:var(--display);letter-spacing:-.035em;color:var(--purple);margin:0 0 1.15rem;font-size:clamp(1.75rem,4.4vw,2.6rem);font-weight:700;line-height:1.08}.article-header .byline{font-family:var(--sans);color:var(--muted);border-bottom:1px solid var(--rule);padding-bottom:2rem;font-size:.8125rem}.article-grid{grid-template-columns:var(--toc-col) minmax(0, var(--measure)) var(--ref-col);column-gap:var(--col-gap);justify-content:center;margin-top:2.75rem;display:grid}.prose{grid-column:2}.article-toc{z-index:1;max-height:calc(100vh - 4rem);font-family:var(--sans);grid-area:1/1;align-self:start;font-size:.8125rem;line-height:1.4;transition:opacity .25s,visibility .25s;position:sticky;top:2rem;overflow-y:auto}.article-toc[data-eclipsed]{opacity:0;visibility:hidden;pointer-events:none}.toc-title{text-transform:uppercase;letter-spacing:.16em;color:#a29b8c;margin:0 0 .9rem;font-size:.625rem;font-weight:600}.toc-list{margin:0;padding:0;list-style:none}.toc-list li{margin-bottom:.75rem}.toc-list a{color:var(--muted);padding-left:.95rem;text-decoration:none;transition:color .15s;display:block;position:relative}.toc-list a:before{content:"";transform-origin:0;background:#cfc7b6;border-radius:50%;width:.3rem;height:.3rem;transition:background-color .15s,transform .15s;position:absolute;top:.5em;left:2px}.toc-list a:hover{color:var(--purple)}.toc-list a[data-active]{color:var(--purple);font-weight:500}.toc-list a[data-active]:before{background:var(--violet);transform:scale(1.5)}.prose>*{margin-block:1.1em}.prose h2{font-family:var(--display);letter-spacing:-.025em;color:var(--purple);margin-top:3.4rem;margin-bottom:.7rem;scroll-margin-top:2rem;font-size:1.5rem;font-weight:600;line-height:1.15}.prose h3{font-family:var(--display);letter-spacing:-.02em;margin-top:2.3rem;margin-bottom:.35rem;scroll-margin-top:2rem;font-size:1.1875rem;font-weight:600}.prose a{color:var(--purple-mid);text-underline-offset:2px}.prose blockquote{border-left:3px solid var(--sage);color:var(--muted);margin-inline:0;padding-left:1.35rem;font-style:italic}.prose code{font-family:var(--mono);font-size:.8125em}.prose :not(pre)>code{background:#e9e4d6;border-radius:3px;padding:.15em .4em}.prose pre{border:1px solid var(--rule);border-radius:4px;padding:1rem 1.15rem;font-size:.8125rem;line-height:1.55;overflow-x:auto}.ref-note,.sidenote{float:right;clear:right;width:var(--ref-col);margin-right:calc((var(--ref-col) + var(--col-gap)) * -1);font-family:var(--sans);color:var(--muted);margin-top:.3rem;margin-bottom:1.1rem;font-size:.8125rem;line-height:1.5}.sidenote{border-top:2px solid var(--violet);padding-top:.55rem}.sidenote a{color:var(--purple-mid);text-underline-offset:2px}.sidenote-label{font-family:var(--sans);color:var(--purple);margin-bottom:.2rem;font-weight:600;display:block}.sidenote>:first-of-type{margin-top:0}.sidenote>:last-child{margin-bottom:0}.sidenote-ref,.article-notes{display:none}.sidenote-ref{margin:0 0 0 .15em;font-size:.75em;line-height:0}.sidenote-ref a{padding:.2em;scroll-margin-top:4rem;font-weight:600;text-decoration:none}.sidenote-ref a:focus-visible,.note-backlink:focus-visible{outline:2px solid var(--violet);outline-offset:3px}.article-notes{border-top:1px solid var(--rule);margin-top:3rem;padding-top:1.5rem}.article-notes h2{margin:0 0 1.25rem;font-size:1.1875rem}.article-notes ol{margin:0;padding-left:1.5rem}.article-notes li{color:var(--muted);margin-bottom:1.5rem;padding-left:.35rem;scroll-margin-top:2rem;font-size:.875rem;line-height:1.6}.article-notes li::marker{color:var(--purple);font-weight:600}.article-notes li:target{background:var(--surface);outline:2px solid var(--violet);outline-offset:.5rem}.article-notes p{margin:.35rem 0}.note-backlink{padding-block:.35rem;font-size:.8125rem;display:inline-block}.figure{margin:2.6rem 0}.figure figcaption{font-family:var(--sans);color:var(--muted);margin:.9rem 0 0;font-size:.8125rem;line-height:1.5}.figure figcaption .label{color:var(--purple);font-weight:600}.figure--chart{--chart-w:min(58rem, calc(100vw - 3rem));width:var(--chart-w);margin-inline:calc((100% - var(--chart-w)) / 2)}.figure--wide{margin-right:calc((var(--ref-col) + var(--col-gap)) * -1)}.figure--full{margin-right:calc((var(--ref-col) + var(--col-gap)) * -1);margin-left:calc((var(--toc-col) + var(--col-gap)) * -1)}.dw{position:relative}.dw__expand{font-family:var(--sans);text-transform:uppercase;letter-spacing:.06em;color:var(--muted);background:var(--surface);border:1px solid var(--rule);cursor:pointer;border-radius:3px;align-items:center;gap:.35rem;padding:.3rem .55rem;font-size:.6875rem;font-weight:600;transition:background-color .2s,color .2s;display:inline-flex;position:absolute;top:0;right:0}.dw__expand:hover{background:var(--purple);color:var(--cream);border-color:var(--purple)}.dw-dialog{border:1px solid var(--rule);background:var(--surface);width:min(94vw,68rem);height:min(88vh,46rem);color:var(--ink);border-radius:6px;padding:0}.dw-dialog::backdrop{background:#2e1f4a73}.dw-dialog form{margin:0;position:absolute;top:.6rem;right:.6rem}.dw-dialog button{font-family:var(--sans);cursor:pointer;border:1px solid var(--rule);color:var(--muted);background:0 0;border-radius:3px;padding:.25rem .5rem;font-size:.75rem}.dw-dialog iframe{border:none;width:100%;height:100%}.index{max-width:var(--measure);margin:0 auto;padding:4rem 1.5rem 0}.index h1{letter-spacing:-.02em;color:var(--purple);margin:0 0 2.5rem;font-size:2.125rem;font-weight:600}.post-list{margin:0;padding:0;list-style:none}.post-list li{border-top:1px solid var(--rule);padding-block:1.6rem}.post-list h2{letter-spacing:-.015em;margin:0 0 .35rem;font-size:1.375rem;font-weight:600}.post-list h2 a{color:var(--purple);text-decoration:none}.post-list h2 a:hover{color:var(--purple-mid)}.post-list p{color:var(--muted);margin:0 0 .45rem;font-size:1.0625rem}.post-list time{font-family:var(--sans);color:var(--muted);font-size:.75rem}@media (width<=61.24em){.article-grid{max-width:var(--measure);margin-inline:auto;display:block}.article-toc,.sidenote{display:none}.sidenote-ref{display:inline}.article-notes{display:block}.ref-note{float:none;border-left:2px solid var(--sage);margin-right:0;border-top:none;width:auto;margin-block:1rem;padding:.15rem 0 .15rem 1rem}.figure--wide,.figure--full{margin-inline:0}.figure--chart{--chart-w:calc(100vw - 1rem);width:var(--chart-w);margin-inline:calc((100% - var(--chart-w)) / 2)}.prose .figure--chart :is(.figure__head,.figure__foot,.igc-range,.etc-controls,.vlc-views,.vlc-experimental,.vlc-controls,.vlc-readout,.vlc-scale,.weather-steps,.weather-controls,.weather-legend,.weather-story){margin-inline:1rem}.figure--chart :is(.igc-plot,.etc-plot)>figure{margin:0}.figure--chart :is(.igc-plot,.etc-plot)>figure>div{padding-inline:1rem}.prose .figure--chart .igc-range{grid-template-columns:auto 1fr auto;display:grid}.prose .figure--chart .igc-range-track{grid-area:2/1/auto/-1}}@media (width<=45em){body{font-size:1.0625rem}.article{padding-top:2.5rem}}