:root{--paper:#f2f4f6;--raised:#fff;--ink:#16213a;--ink-soft:#4d5871;--ink-faint:#78829a;--rule:#c7d2e0;--rule-faint:#dfe6ef;--margin:#c8433f;--correct:#2f7a55;--gutter:3.25rem;--measure:68ch;--page-max:62rem;--sans:ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--serif:Charter, "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;--mono:ui-monospace, "SF Mono", SFMono-Regular, "Cascadia Mono", "Roboto Mono", Menlo, monospace;color-scheme:light}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--paper:#11151e;--raised:#171d29;--ink:#dde4ee;--ink-soft:#98a4b8;--ink-faint:#6d798e;--rule:#2b3444;--rule-faint:#202836;--margin:#e8635f;--correct:#4fb483;color-scheme:dark}}:root[data-theme=dark]{--paper:#11151e;--raised:#171d29;--ink:#dde4ee;--ink-soft:#98a4b8;--ink-faint:#6d798e;--rule:#2b3444;--rule-faint:#202836;--margin:#e8635f;--correct:#4fb483;color-scheme:dark}*,:before,:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{background:var(--paper);color:var(--ink);font-family:var(--sans);-webkit-font-smoothing:antialiased;margin:0;font-size:1rem;line-height:1.6}a{color:inherit;text-decoration-color:var(--rule);text-underline-offset:.18em}a:hover{text-decoration-color:var(--margin)}:where(a,button,summary,input,[tabindex]):focus-visible{outline:2px solid var(--margin);outline-offset:3px;border-radius:2px}h1,h2,h3,h4{font-family:var(--serif);letter-spacing:-.005em;text-wrap:balance;margin:0;font-weight:600;line-height:1.2}.masthead{border-bottom:1px solid var(--rule);background:var(--paper)}.masthead-in{max-width:var(--page-max);align-items:baseline;gap:1.25rem;margin:0 auto;padding:.875rem 1.25rem;display:flex}.wordmark{font-family:var(--mono);letter-spacing:.14em;text-transform:uppercase;font-size:.8125rem;font-weight:600;text-decoration:none}.wordmark:before{content:"";background:var(--margin);vertical-align:-.02em;width:2px;height:.85em;margin-inline-end:.55em;display:inline-block}.masthead nav{align-items:baseline;gap:1.125rem;margin-inline-start:auto;display:flex}.masthead nav a{color:var(--ink-soft);font-size:.875rem;text-decoration:none}.masthead nav a:hover,.masthead nav a[aria-current=page]{color:var(--ink)}.masthead nav a[aria-current=page]{box-shadow:inset 0 -2px 0 var(--margin)}.theme-btn{font:inherit;border:1px solid var(--rule);color:var(--ink-soft);cursor:pointer;background:0 0;border-radius:999px;padding:.1rem .6rem;font-size:.8125rem;line-height:1.5}.theme-btn:hover{border-color:var(--margin);color:var(--ink)}.page{max-width:var(--page-max);margin:0 auto;padding:2.5rem 1.25rem 5rem}.ruled{padding-inline-start:var(--gutter);position:relative}.ruled:before{content:"";background:var(--margin);opacity:.55;width:1px;position:absolute;inset-block:0;inset-inline-start:0}.in-margin{width:calc(var(--gutter) - .9rem);text-align:end;font-family:var(--mono);color:var(--margin);font-size:.75rem;line-height:inherit;position:absolute;inset-inline-start:calc(var(--gutter) * -1)}.fig-tag{text-align:end;font-family:var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--margin);margin-bottom:.35rem;font-size:.6875rem;line-height:1.2;display:block}@media (width<=40rem){:root{--gutter:.875rem}.in-margin{text-align:start;width:auto;margin-bottom:.15rem;display:block;position:static}}.eyebrow{font-family:var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--ink-faint);margin:0 0 .75rem;font-size:.75rem}.eyebrow a{text-decoration:none}.eyebrow a:hover{color:var(--ink);text-decoration:underline}.page-title{font-size:clamp(1.9rem,1.3rem + 2.4vw,2.9rem)}.page-sub{color:var(--ink-soft);max-width:46ch;margin:.6rem 0 0}.title-block{border-bottom:1px solid var(--rule);margin-bottom:2rem;padding-bottom:1.75rem;position:relative}.register{border-top:1px solid var(--rule-faint);margin:0;padding:0;list-style:none}.register>li{border-bottom:1px solid var(--rule-faint)}.register a.row{grid-template-columns:2.75rem 1fr;align-items:baseline;gap:0 1rem;padding:.9rem .5rem .95rem 0;text-decoration:none;display:grid}.register a.row:hover{background:var(--raised)}.register.plain a.row{grid-template-columns:1fr}.register.plain .meta,.register.plain .sum{grid-column:1}.register .num{font-family:var(--mono);color:var(--margin);text-align:end;font-variant-numeric:tabular-nums;font-size:.8125rem}.register .ti{font-family:var(--serif);font-size:1.125rem;line-height:1.3}.register .meta{font-family:var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--ink-faint);grid-column:2;margin-top:.3rem;font-size:.6875rem}.register .sum{color:var(--ink-soft);grid-column:2;max-width:62ch;margin-top:.25rem;font-size:.9375rem}@media (width<=40rem){.register a.row{grid-template-columns:2rem 1fr}}.running-head{align-items:baseline;gap:.75rem;margin:2.25rem 0 .5rem;display:flex}.running-head:first-of-type{margin-top:0}.running-head h2,.running-head h3{font-size:1.0625rem;font-family:var(--sans);letter-spacing:-.01em;font-weight:600}.running-head .count{font-family:var(--mono);color:var(--ink-faint);letter-spacing:.08em;font-size:.6875rem}.running-head a{text-decoration:none}.running-head a:hover{text-decoration:underline}.empty{color:var(--ink-faint);padding:1.25rem 0;font-style:italic}.tags{flex-wrap:wrap;gap:.4rem;margin:0;padding:0;list-style:none;display:flex}.tag{font-family:var(--mono);color:var(--ink-soft);border:1px solid var(--rule);white-space:nowrap;border-radius:999px;padding:.1rem .55rem;font-size:.75rem;text-decoration:none}.tag:hover{border-color:var(--margin);color:var(--ink)}.tag:before{content:"#";color:var(--ink-faint)}.badge-draft{font-family:var(--mono);letter-spacing:.1em;text-transform:uppercase;border:1px solid var(--margin);color:var(--margin);vertical-align:.15em;border-radius:2px;padding:0 .3rem;font-size:.625rem}.prose{font-family:var(--serif);max-width:var(--measure);font-size:1.0625rem;line-height:1.72}.prose>*+*{margin-top:1.05em}.prose h2{border-top:1px solid var(--rule-faint);margin-top:2.4em;padding-top:.35em;font-size:1.45rem}.prose h3{margin-top:1.9em;font-size:1.15rem}.prose ul,.prose ol{padding-inline-start:1.35em}.prose li+li{margin-top:.35em}.prose strong{font-weight:700}.prose blockquote{border-inline-start:2px solid var(--rule);color:var(--ink-soft);margin-inline:0;padding-inline-start:1.1em;font-style:italic}.prose code{font-family:var(--mono);background:var(--raised);border:1px solid var(--rule-faint);border-radius:3px;padding:.05em .3em;font-size:.875em}.prose pre{font-family:var(--mono);background:var(--raised);border:1px solid var(--rule-faint);border-radius:4px;padding:.9rem 1rem;font-size:.8125rem;line-height:1.55;overflow-x:auto}.prose pre code{font-size:inherit;background:0 0;border:0;padding:0}.prose img,.prose svg{max-width:100%;height:auto}.prose hr{border:0;border-top:1px solid var(--rule);margin-block:2em}.table-scroll{max-width:100%;overflow-x:auto}.prose table,.table-scroll table{border-collapse:collapse;font-family:var(--sans);width:100%;min-width:30rem;font-size:.9375rem}.prose th,.table-scroll th{text-align:start;font-family:var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--ink-faint);border-bottom:1px solid var(--rule);white-space:nowrap;padding:.5rem .9rem .5rem 0;font-size:.6875rem;font-weight:600}.prose td,.table-scroll td{vertical-align:top;border-bottom:1px solid var(--rule-faint);padding:.6rem .9rem .6rem 0}.pager{border-top:1px solid var(--rule);justify-content:space-between;gap:1rem;margin-top:3.5rem;padding-top:1.25rem;font-size:.9375rem;display:flex}.pager a{max-width:22ch;text-decoration:none}.pager .dir{font-family:var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--ink-faint);font-size:.6875rem;display:block}.pager a:hover .lbl{text-decoration:underline}.pager .next{text-align:end;margin-inline-start:auto}.foot{border-top:1px solid var(--rule);margin-top:4rem}.foot-in{max-width:var(--page-max);font-family:var(--mono);letter-spacing:.06em;color:var(--ink-faint);flex-wrap:wrap;gap:.75rem 1.5rem;margin:0 auto;padding:1.5rem 1.25rem 3rem;font-size:.6875rem;display:flex}.skip-link{position:absolute;left:-9999px}.skip-link:focus{z-index:10;background:var(--raised);border:1px solid var(--margin);border-radius:3px;padding:.4rem .7rem;top:.5rem;left:.5rem}@media (prefers-reduced-motion:reduce){*,:before,:after{transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}.graph-pair{grid-template-columns:repeat(2,minmax(0,1fr));gap:1.25rem;margin:2em 0;display:grid}.graph-pair>*{min-width:0;margin:0}@media (width<=46rem){.graph-pair{grid-template-columns:1fr}}