:root{--ink:#1b2a33;--muted:#52636d;--slate:#1f3a4d;--slate-2:#2d5670;--copper:#b4531b;--copper-2:#8f3f12;--bg:#fbfaf7;--card:#fff;--line:#e3ddd2;--tint:#f3eee6;--ok:#2f6b3a;--radius:10px;--max:72rem}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font:17px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;color:var(--ink);background:var(--bg)}
a{color:var(--slate-2);text-underline-offset:2px}
a:hover{color:var(--copper-2)}
:focus-visible{outline:3px solid var(--copper);outline-offset:2px}
img,svg{max-width:100%;height:auto}
.skip{position:absolute;left:-999px;top:0;background:var(--slate);color:#fff;padding:.5rem 1rem;z-index:10}
.skip:focus{left:0}
.wrap{max-width:var(--max);margin:0 auto;padding:0 1rem}
header.site{background:var(--slate);color:#fff}
header.site .wrap{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:.5rem;padding-top:.6rem;padding-bottom:.6rem}
.brand{display:flex;align-items:center;gap:.5rem;color:#fff;text-decoration:none;font-weight:800;font-size:1.3rem;letter-spacing:-.01em}
.brand:hover{color:#fff}
.brand svg{width:38px;height:30px}
.brand span b{color:#f0a36f;font-weight:800}
nav.main ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:.25rem}
nav.main a{display:block;color:#fff;text-decoration:none;padding:.4rem .7rem;border-radius:6px;font-weight:600;font-size:.95rem}
nav.main a:hover,nav.main a[aria-current=page]{background:rgba(255,255,255,.14);color:#fff}
.crumbs{font-size:.85rem;color:var(--muted);margin:1rem 0 0}
.crumbs ol{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:.3rem}
.crumbs li+li:before{content:"›";margin-right:.3rem;color:var(--muted)}
main{padding-bottom:2rem}
h1{font-size:clamp(1.7rem,4.5vw,2.4rem);line-height:1.2;margin:.6rem 0 .5rem;color:var(--slate);letter-spacing:-.01em}
h2{font-size:1.4rem;line-height:1.3;margin:2rem 0 .6rem;color:var(--slate)}
h3{font-size:1.1rem;margin:1.4rem 0 .4rem}
.lede{font-size:1.1rem;color:var(--muted);max-width:46rem;margin-top:0}
.layout{display:grid;gap:2rem}
@media(min-width:960px){.layout{grid-template-columns:minmax(0,1fr) 18rem}}
article{max-width:46rem}
.calc{background:var(--card);border:1px solid var(--line);border-top:4px solid var(--copper);border-radius:var(--radius);padding:1rem 1rem 1.2rem;margin:1.2rem 0;box-shadow:0 1px 2px rgba(0,0,0,.04)}
.calc h2{margin-top:0;font-size:1.2rem}
.fields{display:grid;gap:.8rem;grid-template-columns:repeat(auto-fill,minmax(8.5rem,1fr))}
.field label{display:block;font-weight:600;font-size:.9rem;margin-bottom:.2rem}
.field .hint{display:block;font-size:.78rem;color:var(--muted);font-weight:400}
.inp{display:flex;align-items:stretch;border:1px solid #b9b2a5;border-radius:7px;background:#fff;overflow:hidden}
.inp:focus-within{outline:3px solid var(--copper);outline-offset:1px}
.inp input,.inp select,.field select{flex:1;min-width:0;border:0;padding:.55rem .6rem;font:inherit;font-size:1rem;background:transparent;color:var(--ink)}
.inp input:focus,.inp select:focus{outline:none}
.inp .u{padding:.55rem .6rem;background:var(--tint);color:var(--muted);font-size:.85rem;white-space:nowrap;display:flex;align-items:center}
.field.check label{display:flex;gap:.5rem;align-items:center;font-weight:600}
.field.check input{width:1.2rem;height:1.2rem;accent-color:var(--copper)}
.results{margin-top:1rem;background:var(--tint);border-radius:8px;padding:.6rem .9rem}
.results dl{margin:0}
.results .row{display:flex;justify-content:space-between;gap:1rem;padding:.35rem 0;border-bottom:1px solid var(--line)}
.results .row:last-child{border-bottom:0}
.results dt{color:var(--muted)}
.results dd{margin:0;font-weight:700;text-align:right;font-variant-numeric:tabular-nums}
.results .primary dt{color:var(--ink);font-weight:700}
.results .primary dd{color:var(--copper-2);font-size:1.25rem}
.calc button{margin-top:.8rem;background:var(--copper);color:#fff;border:0;border-radius:7px;padding:.6rem 1.1rem;font:inherit;font-weight:700;cursor:pointer}
.calc button:hover{background:var(--copper-2)}
.js .calc button{display:none}
.formula{background:#fff;border-left:4px solid var(--slate-2);padding:.6rem .9rem;margin:1rem 0;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.92rem;overflow-x:auto;white-space:pre-wrap}
.example{background:#fff;border:1px dashed #c9bfae;border-radius:8px;padding:.7rem 1rem;margin:1rem 0}
.example strong:first-child{color:var(--copper-2)}
.note{background:#fff7ee;border:1px solid #f0d3b6;border-radius:8px;padding:.7rem 1rem;font-size:.95rem}
.tablewrap{overflow-x:auto;margin:1rem 0;border:1px solid var(--line);border-radius:8px;background:#fff}
table{border-collapse:collapse;width:100%;font-size:.93rem;font-variant-numeric:tabular-nums}
caption{text-align:left;font-weight:700;padding:.6rem .8rem;color:var(--slate)}
th,td{padding:.45rem .7rem;border-top:1px solid var(--line);text-align:left;vertical-align:top}
thead th{background:var(--tint);border-top:0}
tbody tr:hover{background:#fcfaf6}
.faq details{border:1px solid var(--line);border-radius:8px;background:#fff;margin:.5rem 0;padding:.2rem .9rem}
.faq summary{cursor:pointer;font-weight:700;padding:.5rem 0}
aside.side{font-size:.95rem}
aside.side .box{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:.8rem 1rem;margin-bottom:1rem}
aside.side h2{font-size:1rem;margin:.2rem 0 .5rem}
aside.side ul{padding-left:1.1rem;margin:0}
.grid{display:grid;gap:1rem;grid-template-columns:repeat(auto-fill,minmax(15rem,1fr));margin:1rem 0}
.card{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:1rem;text-decoration:none;color:var(--ink)}
.card:hover{border-color:var(--copper);color:var(--ink)}
.card strong{display:block;color:var(--slate);font-size:1.05rem;margin-bottom:.2rem}
.card span{color:var(--muted);font-size:.92rem}
.hero{background:linear-gradient(135deg,#1f3a4d,#2d5670);color:#fff;padding:2.2rem 0 2.4rem}
.hero h1{color:#fff;margin-top:0}
.hero p{color:#dbe6ec;font-size:1.15rem;max-width:40rem}
.hero .calc{color:var(--ink);max-width:40rem}
.lanes{display:grid;gap:1rem;grid-template-columns:repeat(auto-fill,minmax(16rem,1fr))}
.lane{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:1rem}
.lane h3{margin-top:0;color:var(--copper-2)}
.pitchfig{display:block;margin:1rem 0;background:#fff;border:1px solid var(--line);border-radius:8px}
.ad-slot{display:none}
footer.site{background:#15232c;color:#c5d1d8;font-size:.9rem;padding:2rem 0;margin-top:2rem}
footer.site a{color:#fff}
footer.site .cols{display:grid;gap:1.5rem;grid-template-columns:repeat(auto-fill,minmax(12rem,1fr))}
footer.site h2{color:#fff;font-size:1rem;margin:0 0 .5rem}
footer.site ul{list-style:none;padding:0;margin:0}
footer.site li{margin:.25rem 0}
footer.site .fine{border-top:1px solid #2b3c47;margin-top:1.5rem;padding-top:1rem;color:#9fb0ba}
.sources{font-size:.88rem;color:var(--muted)}
@media print{header.site,footer.site,aside.side,nav.main,.faq{display:none}.calc{border:1px solid #999;box-shadow:none}}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}