:root{--bg: #ffffff;--bg-soft: #f6f7f9;--bg-inset: #eef0f3;--text: #16181d;--text-soft: #5b6270;--text-faint: #868d9b;--border: #e2e5ea;--accent: #b4341f;--accent-soft: #fdf0ed;--accent-text: #962b19;--radius: 10px;--maxw: 1120px;--prose: 70ch;--font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--font-display: ui-serif, Georgia, "Iowan Old Style", "Times New Roman", serif}@media(prefers-color-scheme:dark){:root{--bg: #14161a;--bg-soft: #1b1e24;--bg-inset: #22262e;--text: #e9ecf1;--text-soft: #a7aebc;--text-faint: #7f8797;--border: #2b3038;--accent: #f0705a;--accent-soft: #2a1c19;--accent-text: #f0705a}}*,*:before,*:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font);font-size:1.0625rem;line-height:1.7;-webkit-font-smoothing:antialiased}img,video{max-width:100%;height:auto}a{color:var(--accent-text);text-underline-offset:2px}a:hover{text-decoration-thickness:2px}.wrap{max-width:var(--maxw);margin-inline:auto;padding-inline:1.25rem}.prose-wrap{max-width:var(--prose);margin-inline:auto;padding-inline:1.25rem}.site-header{border-bottom:1px solid var(--border);background:var(--bg);position:sticky;top:0;z-index:20}.site-header .wrap{display:flex;align-items:center;gap:1.5rem;min-height:62px;flex-wrap:wrap}.brand{font-family:var(--font-display);font-weight:700;font-size:1.35rem;letter-spacing:-.02em;color:var(--text);text-decoration:none}.brand span{color:var(--accent)}.nav{display:flex;gap:1.25rem;margin-left:auto;flex-wrap:wrap}.nav a{color:var(--text-soft);text-decoration:none;font-size:.95rem;font-weight:500;padding:.25rem 0;border-bottom:2px solid transparent}.nav a:hover,.nav a[aria-current=page]{color:var(--text);border-bottom-color:var(--accent)}.crumbs{font-size:.85rem;color:var(--text-faint);padding-block:1.25rem 0}.crumbs a{color:var(--text-soft);text-decoration:none}.crumbs a:hover{text-decoration:underline}.crumbs span{margin-inline:.4rem}.hero{padding-block:3.5rem 2.5rem;border-bottom:1px solid var(--border)}.hero h1{font-family:var(--font-display);font-size:clamp(2rem,5vw,3rem);line-height:1.15;letter-spacing:-.025em;margin:0 0 .75rem;max-width:20ch}.hero p{font-size:1.15rem;color:var(--text-soft);max-width:60ch;margin:0}.hub-grid{display:grid;gap:1rem;padding-block:2.5rem;grid-template-columns:repeat(auto-fit,minmax(270px,1fr))}.hub-card{display:block;padding:1.5rem;text-decoration:none;color:inherit;background:var(--bg-soft);border:1px solid var(--border);border-radius:var(--radius)}.hub-card:hover{border-color:var(--accent);background:var(--accent-soft)}.hub-card h2{margin:0 0 .5rem;font-size:1.25rem;letter-spacing:-.01em}.hub-card p{margin:0 0 .75rem;color:var(--text-soft);font-size:.95rem}.hub-card .count{font-size:.85rem;color:var(--text-faint);font-variant-numeric:tabular-nums}.section-title{font-size:.8rem;text-transform:uppercase;letter-spacing:.09em;color:var(--text-faint);font-weight:700;margin:2.5rem 0 .75rem;padding-bottom:.5rem;border-bottom:1px solid var(--border)}.list{list-style:none;margin:0;padding:0}.list li{border-bottom:1px solid var(--border)}.list a{display:block;padding:1rem 0;text-decoration:none;color:inherit}.list a:hover .list-title{color:var(--accent-text)}.list-title{font-weight:600;font-size:1.05rem;line-height:1.4;display:block}.list-desc{color:var(--text-soft);font-size:.92rem;margin-top:.2rem;display:block}.article-head{padding-block:2rem 1.5rem;border-bottom:1px solid var(--border)}.article-head h1{font-family:var(--font-display);font-size:clamp(1.75rem,4.5vw,2.5rem);line-height:1.2;letter-spacing:-.02em;margin:.5rem 0 .75rem}.article-head .lede{color:var(--text-soft);font-size:1.1rem;margin:0}.meta{font-size:.85rem;color:var(--text-faint);margin-top:1rem}.kicker{display:inline-block;font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--accent-text);background:var(--accent-soft);padding:.25rem .6rem;border-radius:100px;text-decoration:none}.prose{padding-block:2rem 3rem}.prose h2{font-family:var(--font-display);font-size:1.6rem;line-height:1.25;letter-spacing:-.015em;margin:2.75rem 0 .85rem}.prose h3{font-size:1.2rem;margin:2rem 0 .6rem;line-height:1.35}.prose p{margin:0 0 1.15rem}.prose ul,.prose ol{margin:0 0 1.15rem;padding-left:1.35rem}.prose li{margin-bottom:.4rem}.prose blockquote{margin:1.75rem 0;padding:.35rem 0 .35rem 1.15rem;border-left:3px solid var(--accent);color:var(--text-soft);font-style:italic}.prose blockquote p:last-child{margin-bottom:0}.prose hr{border:0;border-top:1px solid var(--border);margin:2.5rem 0}.prose code{background:var(--bg-inset);padding:.15em .4em;border-radius:4px;font-size:.9em}.table-scroll{overflow-x:auto;margin:1.5rem 0}.prose table{border-collapse:collapse;width:100%;font-size:.95rem;min-width:32rem}.prose th,.prose td{border:1px solid var(--border);padding:.6rem .75rem;text-align:left;vertical-align:top}.prose th{background:var(--bg-soft);font-weight:600}.related{padding-block:2rem 3rem;border-top:1px solid var(--border)}.related h2{font-size:1.1rem;margin:0 0 1rem}.related-grid{display:grid;gap:.75rem;grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}.related-grid a{display:block;padding:.9rem 1rem;text-decoration:none;color:inherit;border:1px solid var(--border);border-radius:var(--radius);font-weight:600;font-size:.95rem;line-height:1.4}.related-grid a:hover{border-color:var(--accent);background:var(--accent-soft)}.site-footer{border-top:1px solid var(--border);background:var(--bg-soft);padding-block:2.5rem;margin-top:3rem;font-size:.9rem;color:var(--text-soft)}.footer-cols{display:grid;gap:2rem;grid-template-columns:repeat(auto-fit,minmax(180px,1fr))}.site-footer h3{font-size:.8rem;text-transform:uppercase;letter-spacing:.08em;color:var(--text-faint);margin:0 0 .6rem}.site-footer ul{list-style:none;margin:0;padding:0}.site-footer li{margin-bottom:.35rem}.site-footer a{color:var(--text-soft);text-decoration:none}.site-footer a:hover{color:var(--text);text-decoration:underline}.footer-bottom{margin-top:2rem;padding-top:1.25rem;border-top:1px solid var(--border);font-size:.85rem;color:var(--text-faint)}.todo{background:#fff4e5;border:1px solid #f0b775;color:#6b4310;padding:.85rem 1rem;border-radius:var(--radius);margin:1.5rem 0;font-size:.9rem}@media(prefers-color-scheme:dark){.todo{background:#2e2113;border-color:#6b4a1c;color:#f0c58a}}.calc{background:var(--bg-soft);border:1px solid var(--border);border-radius:var(--radius);padding:1.5rem;margin:2rem 0}.calc h2{margin-top:0!important;font-size:1.3rem!important}.calc-fields{display:grid;gap:1rem;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));margin-bottom:1.25rem}.calc label{display:block;font-size:.85rem;font-weight:600;margin-bottom:.35rem;color:var(--text-soft)}.calc input{width:100%;padding:.6rem .7rem;font-size:1rem;font-family:inherit;border:1px solid var(--border);border-radius:6px;background:var(--bg);color:var(--text)}.calc input:focus{outline:2px solid var(--accent);outline-offset:1px}.calc-out{display:grid;gap:.5rem}.calc-row{display:flex;justify-content:space-between;align-items:baseline;padding:.6rem .75rem;background:var(--bg);border:1px solid var(--border);border-radius:6px}.calc-row.avg{border-color:var(--accent);background:var(--accent-soft);font-weight:700}.calc-row b{font-variant-numeric:tabular-nums;font-size:1.05rem}.calc-note{font-size:.85rem;color:var(--text-faint);margin:1rem 0 0}.calc-error{color:var(--accent-text);font-size:.9rem;margin-top:.75rem}.err{padding-block:5rem;text-align:center}.err h1{font-size:4rem;margin:0;font-family:var(--font-display);color:var(--text-faint)}.err h2{font-size:1.4rem;margin:.5rem 0 1rem}.err p{color:var(--text-soft);max-width:46ch;margin-inline:auto}.skip{position:absolute;left:-9999px;background:var(--bg);color:var(--text);padding:.75rem 1rem;z-index:100}.skip:focus{left:.5rem;top:.5rem}