@font-face{font-family:"Atkinson Hyperlegible";src:url(/fonts/atkinson-400.woff2) format("woff2");font-weight:400;font-display:swap}
@font-face{font-family:"Atkinson Hyperlegible";src:url(/fonts/atkinson-700.woff2) format("woff2");font-weight:700;font-display:swap}
:root{--ink:#1f2b45;--muted:#56607a;--grid:#cfdcec;--plum:#9b2f62;--plum-soft:#f6e9ef;--link:#2c64a8;--bg:#fff;--paper:#f7fafd}
*{box-sizing:border-box}[hidden]{display:none!important}
body{margin:0;background:var(--bg);color:var(--ink);font:18px/1.6 "Atkinson Hyperlegible",system-ui,sans-serif}
.wrap{max-width:1160px;margin:0 auto;padding:0 16px}
a{color:var(--link)}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible,canvas:focus-visible{outline:3px solid var(--plum);outline-offset:2px}
header.site{border-bottom:1px solid var(--grid)}header.site .wrap{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 16px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--ink);text-decoration:none}.brand svg{width:30px;height:30px}
nav.main a{margin-left:18px;color:var(--muted);text-decoration:none;font-size:.95rem}nav.main a:hover{color:var(--ink);text-decoration:underline}
.intro{padding-top:28px}
h1{font-size:clamp(2rem,4.6vw,3.1rem);line-height:1.08;margin:0 0 .3em;letter-spacing:-.01em}
.lead{max-width:62ch;color:var(--muted);margin:0 0 20px}
h2{font-size:1.5rem;line-height:1.25;margin:2em 0 .5em}h2.small{font-size:1.05rem;margin:22px 0 8px}h3{font-size:1.1rem;margin:1.6em 0 .3em}

/* workbench: graph left, the row you're on right */
.bench{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:28px;align-items:start}
.graphwrap{position:relative;background:var(--paper);border:1px solid var(--grid);border-radius:4px;padding:10px;line-height:0}
#graph{width:100%;height:auto;image-rendering:pixelated;cursor:pointer;max-height:72vh;object-fit:contain}
.tag{position:absolute;top:16px;left:16px;background:#fff;border:1px solid var(--grid);border-radius:3px;padding:2px 8px;font-size:.8rem;line-height:1.5;color:var(--muted)}
.dims{font-size:.92rem;color:var(--muted);margin:8px 0 14px}
.drop{display:block;border:2px dashed var(--grid);border-radius:6px;padding:16px;text-align:center;cursor:pointer;background:var(--paper)}
.drop.over,.drop:hover{border-color:var(--plum);background:var(--plum-soft)}.drop b{color:var(--plum)}
.drop input{position:absolute;width:1px;height:1px;opacity:0}.drop:focus-within{outline:3px solid var(--plum);outline-offset:2px}
.err{color:#b3261e;min-height:0;margin:6px 0}
.grid2{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px 16px;margin-top:10px}
label{display:block;font-size:.92rem;color:var(--muted)}
input[type=number],select{display:block;width:100%;margin-top:4px;padding:8px 10px;border:1px solid #b9c6d8;border-radius:4px;background:#fff;color:var(--ink);font:inherit;font-size:1rem}
.chk{display:flex;align-items:center;gap:8px;padding-top:26px}.chk input{width:20px;height:20px;accent-color:var(--plum)}
.gauge{margin-top:14px;border-top:1px solid var(--grid);padding-top:10px}.gauge summary{cursor:pointer;font-weight:700}
.hint{font-size:.9rem;color:var(--muted);margin:8px 0}

.current{border:2px solid var(--plum);border-radius:6px;padding:16px;background:var(--plum-soft)}
.rowhead{display:flex;flex-wrap:wrap;align-items:baseline;gap:4px 12px}
.rn{font-size:1.9rem;font-weight:700;line-height:1.1;color:var(--plum)}.rm{color:var(--muted);font-size:.95rem}
.runs{display:flex;flex-wrap:wrap;gap:6px;margin:12px 0}
.run{display:inline-flex;align-items:center;gap:6px;background:#fff;border:1px solid #e3c7d4;border-radius:4px;padding:4px 10px;font-weight:700;font-size:1.05rem}
.run i{width:16px;height:16px;border-radius:2px;border:1px solid rgba(0,0,0,.2);display:inline-block}
.step{display:flex;gap:8px}
button{font:inherit;font-size:.95rem;font-weight:700;border-radius:4px;padding:9px 14px;cursor:pointer;border:2px solid var(--ink);background:var(--ink);color:#fff}
button.ghost,.step button{background:#fff;color:var(--ink)}button:disabled{opacity:.4;cursor:default}
.rowsbox{list-style:none;margin:0;padding:0;max-height:260px;overflow:auto;border:1px solid var(--grid);border-radius:4px;font-size:.92rem}
.rowsbox li{padding:5px 10px;border-bottom:1px solid #edf2f8;cursor:pointer}.rowsbox li:hover{background:var(--paper)}
.rowsbox li.on{background:var(--plum-soft);box-shadow:inset 3px 0 0 var(--plum)}.rowsbox b{margin-right:6px}
table.yarn{border-collapse:collapse;width:100%;font-size:.92rem}.yarn th,.yarn td{border-bottom:1px solid var(--grid);padding:6px 8px;text-align:left}.yarn th{color:var(--muted);font-weight:400}
.yarn td:nth-child(n+2),.yarn th:nth-child(n+2){text-align:right}
.sw{display:inline-block;width:14px;height:14px;border-radius:2px;border:1px solid rgba(0,0,0,.2);vertical-align:-2px;margin-right:6px}
.actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}

.prose{max-width:720px;padding-bottom:40px}.prose p,.prose li{max-width:66ch}.prose ol{padding-left:1.3em}.prose li{margin:.4em 0}
table.sizes{border-collapse:collapse;width:100%;font-size:.95rem}.sizes th,.sizes td{border-bottom:1px solid var(--grid);padding:7px 8px;text-align:left}.sizes td:nth-child(n+2),.sizes th:nth-child(n+2){text-align:right}
.calc{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:28px;align-items:start}
.out{border:2px solid var(--plum);border-radius:6px;padding:16px;background:var(--plum-soft)}.out .big{font-size:1.9rem;font-weight:700;color:var(--plum);line-height:1.15}.out dl{display:grid;grid-template-columns:auto auto;gap:4px 16px;margin:12px 0 0}.out dt{color:var(--muted)}.out dd{margin:0;font-weight:700;text-align:right}
.breadcrumb{font-size:.9rem;color:var(--muted)}
footer.site{border-top:1px solid var(--grid);color:var(--muted);font-size:.9rem}footer.site .wrap{display:flex;gap:16px;flex-wrap:wrap;padding:20px 16px}footer.site a{color:var(--muted)}
.printonly{display:none}
@media (max-width:860px){.bench,.calc{grid-template-columns:1fr}.rowsbox{max-height:220px}}
@media print{header.site,footer.site,.bench,.prose,.intro .lead,.calc{display:none!important}.printonly{display:block}.printonly img{max-width:100%;image-rendering:pixelated}.printonly pre{white-space:pre-wrap;font:12px/1.5 "Atkinson Hyperlegible",sans-serif}}
/* Pro waitlist box (E29) */.pro{margin:30px 0 8px;padding:18px 20px;border:2px solid var(--ink);border-radius:4px;background:var(--paper)}.pro-tag{margin:0;font-size:.85rem;font-weight:700;color:var(--plum)}.pro-lead{font-size:1.3rem;font-weight:700;line-height:1.2;margin:.15em 0 .45em}.pro ul{margin:0 0 14px;padding-left:1.15em}.pro-price span,.pro-free{color:var(--muted)}.pro-dlg{border:2px solid var(--ink);border-radius:4px}.pro-buy{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px}.pro-price{margin:0}.pro-price b{font-size:1.1rem}.pro-price span{font-size:.92rem}.pro-free{font-size:.9rem;margin:12px 0 0}.pro-dlg{max-width:430px;width:calc(100% - 32px);padding:0;border:1px solid var(--line);color:inherit;background:#fff}.pro-dlg::backdrop{background:rgba(20,22,25,.4)}.pro-dlg-in{padding:20px 22px}.pro-dlg-in p{margin:0 0 .7em}.pro-dlg-h{font-weight:700;font-size:1.2rem}.pro-dlg-l{display:block;font-size:.9rem;font-weight:600;margin:.4em 0 4px}.pro-dlg input{width:100%;box-sizing:border-box;padding:9px 11px;border:1px solid var(--line);border-radius:6px;font:inherit;background:#fff}.pro-dlg-a{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}.pro-dlg-ok{margin-top:12px!important;font-weight:600}@media print{.pro,.pro-dlg{display:none!important}}