:root{--paper:#f3ead8;--paper-2:#e7dcc4;--ink:#1a1510;--ink-soft:#4a4036;--rule:#c9b89a;--rust:#b44516;--rust-dark:#8b3410;--forest:#1e4a38;--ledger:#201910;--ledger-rule:#3a3126;--chalk:#f6edd8;--warn:#8a2f12;--ok:#d8ead4;--shadow:3px 3px 0 #1a1510;--font-serif:"Iowan Old Style", "Palatino Linotype", Palatino, Georgia, "Times New Roman", serif;--font-sans:"Segoe UI", system-ui, -apple-system, sans-serif;--font-mono:"ui-monospace", "Cascadia Mono", "Source Code Pro", Menlo, Consolas, monospace;--max:68rem;--gutter:1.1rem}*,:before,:after{box-sizing:border-box}html{color-scheme:light;background:var(--paper)}body{color:var(--ink);font-family:var(--font-sans);background-color:var(--paper);background-image:linear-gradient(90deg, transparent 39px, #d9c7a4 39px, #d9c7a4 40px, transparent 40px), repeating-linear-gradient(var(--paper) 0 31px, #e3d5b6 31px 32px);min-height:100%;margin:0;font-size:1.05rem;line-height:1.55}img,svg{max-width:100%;display:block}a{color:var(--rust-dark);text-underline-offset:.15em}a:hover{color:var(--rust)}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid var(--rust);outline-offset:2px}.skip{background:var(--ink);color:var(--chalk);z-index:20;padding:.5rem .8rem;position:absolute;top:-3rem;left:.75rem}.skip:focus{top:.75rem}.wrap{width:min(var(--max), calc(100% - 2 * var(--gutter)));margin-inline:auto}.site-header{background:var(--ink);color:var(--chalk);border-bottom:4px solid var(--rust)}.site-header a{color:var(--chalk);text-decoration:none}.site-header a:hover{color:#fff}.header-inner{justify-content:space-between;align-items:center;gap:1rem;padding:.85rem 0;display:flex}.brand{font-family:var(--font-serif);letter-spacing:-.02em;align-items:center;gap:.7rem;font-size:1.15rem;font-weight:700;display:flex}.brand small{font-family:var(--font-sans);letter-spacing:.08em;text-transform:uppercase;color:#cbbca0;font-size:.68rem;font-weight:600;display:block}.nav{flex-wrap:wrap;gap:.35rem .9rem;font-size:.92rem;font-weight:600;display:flex}.nav a[aria-current=page]{color:#fff;border-bottom:2px solid var(--rust)}.menu-toggle{display:none}.hero,.page-hero{padding:2.2rem 0 1.4rem}.kicker{letter-spacing:.14em;text-transform:uppercase;color:var(--rust-dark);margin:0 0 .4rem;font-size:.75rem;font-weight:700}h1,h2,h3{font-family:var(--font-serif);letter-spacing:-.02em;line-height:1.15}h1{max-width:18ch;margin:0 0 .7rem;font-size:clamp(2rem,5vw,3.15rem)}.lede{max-width:42rem;color:var(--ink-soft);margin:0 0 1.2rem;font-size:1.15rem}.stamp{border:2px solid var(--rust);color:var(--rust-dark);font-family:var(--font-mono);letter-spacing:.08em;text-transform:uppercase;padding:.2rem .5rem;font-size:.72rem;font-weight:700;display:inline-block;transform:rotate(-2deg)}.tool-grid,.card-grid{gap:1rem;display:grid}.card-grid{grid-template-columns:1fr;margin:0 0 2rem}.card{border:2px solid var(--ink);box-shadow:var(--shadow);background:#fffaf0;padding:1.1rem 1.15rem 1.2rem}.card h2{margin:0 0 .4rem;font-size:1.35rem}.card p{color:var(--ink-soft);margin:0 0 .8rem}.btn{background:var(--rust);color:#fff;border:2px solid var(--ink);box-shadow:2px 2px 0 var(--ink);padding:.55rem .9rem;font-weight:700;text-decoration:none;display:inline-block}.btn:hover{background:var(--rust-dark);color:#fff}.btn-ghost{color:var(--ink);background:0 0}.promise{gap:.8rem;margin:0 0 2.4rem;display:grid}.promise li{list-style:none}.promise ul{gap:.7rem;margin:0;padding:0;display:grid}.tool-layout{gap:1.1rem;margin-bottom:2.2rem;display:grid}.panel{border:2px solid var(--ink);background:#fffaf0;padding:1rem}.panel h2{margin:0 0 .8rem;font-size:1.2rem}.calc-form{gap:.85rem;display:grid}.field{gap:.28rem;display:grid}.field-row{grid-template-columns:1fr 1fr;gap:.75rem;display:grid}label,.legend{font-size:.92rem;font-weight:700}.hint{color:var(--ink-soft);margin:0;font-size:.82rem}.control{border:2px solid var(--ink);background:#fff;align-items:center;gap:.4rem;display:flex}.control input,.control select{font:inherit;background:0 0;border:0;flex:1;width:100%;min-width:0;padding:.55rem .65rem}.unit{font-family:var(--font-mono);color:var(--ink-soft);padding-right:.55rem;font-size:.78rem}.waste{flex-wrap:wrap;gap:.35rem;display:flex}.waste button{font:inherit;border:2px solid var(--ink);cursor:pointer;background:#fff;padding:.4rem .55rem;font-size:.85rem;font-weight:700}.waste button[aria-pressed=true]{background:var(--ink);color:var(--chalk)}.check{align-items:center;gap:.45rem;font-weight:650;display:flex}.result{background:var(--ledger);color:var(--chalk);border:2px solid var(--ink);min-height:16rem;padding:1.1rem 1.1rem 1.2rem}.result h2{color:#cbbca0;font-size:.95rem;font-family:var(--font-sans);letter-spacing:.08em;text-transform:uppercase;margin:0 0 .35rem}.big{font-family:var(--font-mono);letter-spacing:-.04em;margin:.2rem 0 .15rem;font-size:clamp(2.6rem,8vw,4.4rem);font-weight:700;line-height:.95}.sub{font-family:var(--font-mono);color:#e2d4b8;margin:0 0 .9rem;font-size:1.05rem}.metrics{gap:.45rem;margin:0;display:grid}.metrics div{border-top:1px solid var(--ledger-rule);justify-content:space-between;gap:1rem;padding-top:.4rem;font-size:.92rem;display:flex}.metrics dt{color:#cbbca0}.metrics dd{font-family:var(--font-mono);margin:0;font-weight:700}.note{color:#d7c9ad;margin:.9rem 0 0;font-size:.85rem}.explainer{border:2px solid var(--ink);background:#fffaf0;margin-bottom:1.4rem;padding:1.2rem 1.2rem 1.4rem}.explainer h2{margin-top:0}.explainer h3{margin:1.3rem 0 .4rem}.explainer p,.explainer li{color:var(--ink-soft)}.worked{font-family:var(--font-mono);background:var(--paper-2);border-left:4px solid var(--rust);padding:.8rem .9rem;font-size:.92rem;overflow-x:auto}.cite-list{padding-left:1.1rem}.cite-list a{overflow-wrap:anywhere}.related{flex-wrap:wrap;gap:.5rem;margin:0 0 2rem;display:flex}.related a{border:2px solid var(--ink);color:var(--ink);background:#fffaf0;padding:.35rem .6rem;font-size:.9rem;font-weight:700;text-decoration:none}table{border-collapse:collapse;border:2px solid var(--ink);background:#fffaf0;width:100%;font-size:.92rem}th,td{text-align:left;border-bottom:1px solid var(--rule);vertical-align:top;padding:.55rem .65rem}th{font-family:var(--font-serif);background:var(--paper-2)}.kind{font-family:var(--font-mono);text-transform:uppercase;font-size:.75rem;font-weight:700}.prose{max-width:44rem}.prose h1{max-width:none}.site-footer{background:var(--ink);color:#d7c9ad;margin-top:2rem;padding:1.4rem 0 1.8rem}.site-footer a{color:var(--chalk)}.footer-inner{flex-wrap:wrap;justify-content:space-between;gap:.8rem 1.2rem;font-size:.92rem;display:flex}.footer-links{flex-wrap:wrap;gap:.75rem 1rem;display:flex}.disclaimer{color:var(--ink-soft);border-top:2px solid var(--rule);margin-top:1.2rem;padding-top:.9rem;font-size:.88rem}.empty{color:#cbbca0}@media (width>=720px){.card-grid{grid-template-columns:1fr 1fr}.tool-layout{grid-template-columns:1.05fr .95fr;align-items:start}.promise ul{grid-template-columns:1fr 1fr}}@media (width>=960px){.card-grid.four{grid-template-columns:repeat(4,1fr)}}@media (width<=719px){.nav-wrap{position:relative}.menu-toggle{font:inherit;color:var(--chalk);background:0 0;border:2px solid #cbbca0;align-items:center;padding:.3rem .55rem;font-weight:700;display:inline-flex}.nav{background:var(--ledger);border:2px solid var(--rust);z-index:10;flex-direction:column;min-width:12rem;padding:.7rem .9rem;display:none;position:absolute;top:calc(100% + .4rem);right:0}.nav-wrap:hover .nav,.nav-wrap:focus-within .nav{display:flex}.field-row{grid-template-columns:1fr}}