:root{--paper: #f7f8f6;--paper-raised: #fdfdfc;--ink: #16232e;--steel: #4e5e69;--hairline: #d9ded9;--green: #0b7a3e;--green-deep: #085c2f;--amber: #8a5a00;--font-display: system-ui, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--font-body: Charter, "Bitstream Charter", "Sitka Text", Cambria, Georgia, serif;--font-mono: ui-monospace, "SF Mono", "Cascadia Mono", "Segoe UI Mono", Consolas, Menlo, monospace;--measure: 42rem;--wide: 64rem}*{box-sizing:border-box}html{background:var(--paper)}body{margin:0;font-family:var(--font-body);font-size:1.0625rem;line-height:1.65;color:var(--ink);-webkit-text-size-adjust:100%}.mono,.section-tag,.byline,.hub-meta,.card-meta{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;color:var(--steel)}.section-tag a,.card-meta a{color:var(--green);text-decoration:none}.section-tag a:hover,.card-meta a:hover{text-decoration:underline}a{color:var(--green);text-decoration-thickness:1px;text-underline-offset:2px}a:hover{color:var(--green-deep)}:focus-visible{outline:2px solid var(--green);outline-offset:2px}.skip-link{position:absolute;left:-999px;top:0;background:var(--ink);color:#fff;padding:.5rem 1rem;z-index:10}.skip-link:focus{left:0}h1,h2,h3{font-family:var(--font-display);font-weight:800;letter-spacing:-.02em;line-height:1.12;color:var(--ink)}h1{font-size:clamp(1.9rem,4.5vw,2.8rem);margin:.4rem 0}h2{font-size:1.05rem;letter-spacing:.1em;text-transform:uppercase;font-weight:700;margin:2.5rem 0 1rem;padding-bottom:.4rem;border-bottom:1px solid var(--hairline)}h3{font-size:1.25rem;margin:.2rem 0}h1 a,h2 a,h3 a{color:inherit;text-decoration:none}h3 a:hover{color:var(--green-deep);text-decoration:underline;text-decoration-thickness:2px}.site-header{border-bottom:1px solid var(--hairline);background:var(--paper-raised)}.site-header .masthead{max-width:var(--wide);margin:0 auto;padding:1.1rem 1rem .8rem}.wordmark{margin:0;font-family:var(--font-display);font-weight:800;letter-spacing:-.02em;font-size:clamp(1.35rem,3.5vw,1.7rem);line-height:1}.wordmark a{color:var(--ink);text-decoration:none}.wordmark .signal{color:var(--green)}.tagline{margin:.35rem 0 0;font-family:var(--font-mono);font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;color:var(--steel)}.site-nav{max-width:var(--wide);margin:0 auto;padding:.55rem 1rem .7rem;display:flex;flex-wrap:wrap;gap:.35rem 1.15rem}.site-nav a{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink);text-decoration:none}.site-nav a:hover{color:var(--green)}.track-strip{height:12px;position:relative;background:repeating-linear-gradient(90deg,var(--hairline) 0 2px,transparent 2px 14px) center / 100% 10px no-repeat,linear-gradient(var(--steel),var(--steel)) center / 100% 2px no-repeat;opacity:.9}.track-strip:after{content:"";position:absolute;top:50%;right:12%;width:8px;height:8px;margin-top:-4px;border-radius:50%;background:var(--green);box-shadow:0 0 0 2px var(--paper)}main{display:block;max-width:var(--measure);margin:0 auto;padding:1.75rem 1rem 3.5rem}main.wide{max-width:var(--wide)}.site-footer{border-top:1px solid var(--hairline);background:var(--paper-raised)}.site-footer .inner{max-width:var(--wide);margin:0 auto;padding:1.4rem 1rem 1.8rem}.site-footer nav{display:flex;flex-wrap:wrap;gap:.3rem 1.15rem;margin-bottom:.8rem}.site-footer nav a{font-family:var(--font-mono);font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;color:var(--steel);text-decoration:none}.site-footer nav a:hover{color:var(--green)}.site-footer .colophon{font-family:var(--font-mono);font-size:.68rem;letter-spacing:.06em;color:var(--steel);margin:0}.page-head{border-bottom:1px solid var(--hairline);padding-bottom:1.1rem;margin-bottom:1.6rem}.page-head .standfirst{margin-bottom:0}.standfirst{font-size:1.15rem;font-style:italic;color:var(--steel);line-height:1.5}.titleblock{border:2px solid var(--ink);background:var(--paper-raised);margin:.25rem 0 1.5rem}.titleblock .tb-meta{display:flex;flex-wrap:wrap;border-bottom:1px solid var(--hairline)}.titleblock .tb-cell{font-family:var(--font-mono);font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;color:var(--steel);padding:.5rem .9rem;border-right:1px solid var(--hairline)}.titleblock .tb-cell:last-child{border-right:0;margin-left:auto}.titleblock .tb-cell a{color:var(--green);text-decoration:none}.titleblock .tb-cell a:hover{text-decoration:underline}.titleblock h1{margin:0;padding:1rem .9rem 1.1rem}.titleblock .tb-byline{border-top:1px solid var(--hairline);padding:.5rem .9rem;font-family:var(--font-mono);font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;color:var(--ink)}.titleblock .tb-byline time{color:var(--steel)}.article-body{counter-reset:figure}.article-body>p{margin:0 0 1.1rem}.article-body h2,.article-body h5{font-family:var(--font-display);font-weight:800;font-size:1.05rem;letter-spacing:.02em;text-transform:none;margin:2.2rem 0 .8rem;padding:1rem 0 0;border-top:1px solid var(--hairline);border-bottom:0;position:relative}.article-body h2:before,.article-body h5:before{content:"";position:absolute;top:-1px;left:0;width:2.25rem;height:2px;background:var(--green)}.article-body blockquote{margin:1.5rem 0;padding:.2rem 0 .2rem 1.1rem;border-left:3px solid var(--green);font-style:italic;font-size:1.15rem;color:var(--steel)}.article-body blockquote p{margin:0}.article-body figure{margin:1.75rem 0;border:1px solid var(--hairline);background:var(--paper-raised);padding:.6rem}.article-body figure img{display:block;width:100%;height:auto}.article-body figure figcaption,figure.hero figcaption{font-family:var(--font-mono);font-size:.7rem;letter-spacing:.06em;text-transform:uppercase;color:var(--steel);padding:.55rem .2rem .1rem}.article-body figure.diagram{counter-increment:figure}.article-body figure.diagram figcaption:before{content:"Fig. " counter(figure) " — ";color:var(--green)}figure.hero{margin:0 0 1.75rem;border:1px solid var(--hairline);background:var(--paper-raised);padding:.6rem}figure.hero img{display:block;width:100%;height:auto}.article-body table{width:100%;border-collapse:collapse;margin:1.5rem 0;font-size:.95rem}.article-body th{font-family:var(--font-mono);font-size:.7rem;letter-spacing:.08em;text-transform:uppercase;text-align:left;color:var(--steel);border-bottom:2px solid var(--ink);padding:.45rem .75rem .45rem 0}.article-body td{border-bottom:1px solid var(--hairline);padding:.45rem .75rem .45rem 0;vertical-align:top}.article-body hr{border:0;height:10px;margin:2rem 0;background:repeating-linear-gradient(90deg,var(--hairline) 0 2px,transparent 2px 14px) center / 100% 8px no-repeat,linear-gradient(var(--hairline),var(--hairline)) center / 100% 1px no-repeat}.article-body code{font-family:var(--font-mono);font-size:.9em;background:#eef0ec;padding:.1em .35em}.article-footer{margin-top:2.25rem;border-top:1px solid var(--hairline);padding-top:.8rem}ul.article-list{list-style:none;padding:0;margin:0}ul.article-list li{padding:1.1rem 0;border-bottom:1px solid var(--hairline)}ul.article-list li:last-child{border-bottom:0}.card-meta{margin:0 0 .25rem}.card-meta .dot{color:var(--hairline)}.card-desc{margin:.3rem 0 0;color:var(--ink)}.lead-story h3{font-size:clamp(1.5rem,3.5vw,2.1rem)}ul.article-list li.lead-story,ul.article-list li.lead-story:last-child{padding:.5rem 0 1.4rem;border-bottom:2px solid var(--ink);margin-bottom:.5rem}ul.directory{list-style:none;padding:0;margin:0 0 1.5rem}ul.directory li{padding:.55rem 0;border-bottom:1px solid var(--hairline)}ul.directory li:last-child{border-bottom:0}ul.directory .name{font-family:var(--font-display);font-weight:700}.disclosure{border:1px solid var(--hairline);border-left:3px solid var(--amber);background:var(--paper-raised);padding:.7rem 1rem;margin:0 0 1.4rem;font-size:.92rem}.empty-state{color:var(--steel);font-style:italic}.ad-slot{min-height:280px;margin:2.25rem 0;border:1px dashed var(--hairline);background:repeating-linear-gradient(45deg,transparent 0 14px,rgba(78,94,105,.05) 14px 15px);display:flex;align-items:center;justify-content:center}.ad-slot.compact{min-height:100px}.ad-slot .ad-label{font-family:var(--font-mono);font-size:.65rem;letter-spacing:.18em;text-transform:uppercase;color:var(--hairline)}@media(max-width:40rem){.titleblock .tb-cell{padding:.45rem .7rem}.titleblock h1{padding:.8rem .7rem .9rem}.article-body table{display:block;overflow-x:auto}}@media(prefers-reduced-motion:no-preference){.track-strip:after{animation:signal 4s ease-in-out infinite}@keyframes signal{0%,to{opacity:1}50%{opacity:.45}}}@media print{.site-nav,.ad-slot,.track-strip{display:none}}