/* Stitchza — pattern-paper design system */
:root{
  --paper:#EFEBE3;
  --paper-2:#F7F4EE;
  --ink:#17151A;
  --ink-soft:#4A4650;
  --rule:#C9C2B4;
  --chalk:#1F4FA0;
  --chalk-soft:#E4EBF7;
  --cut:#B33A22;
  --cut-soft:#F6E3DE;
  --grid:rgba(31,79,160,.07);
  --measure:68ch;
  --tap:44px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  background-image:
    linear-gradient(var(--grid) 1px,transparent 1px),
    linear-gradient(90deg,var(--grid) 1px,transparent 1px);
  background-size:24px 24px;
  color:var(--ink);
  font-family:"Segoe UI",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  font-size:17px;
  line-height:1.6;
}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}
a{color:var(--chalk)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{
  outline:3px solid var(--chalk);outline-offset:2px
}

/* header */
.site-head{border-bottom:1px solid var(--rule);background:var(--paper-2)}
.head-row{display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:64px;flex-wrap:wrap}
.brand{font-weight:800;font-size:1.2rem;letter-spacing:-.02em;text-decoration:none;color:var(--ink)}
.brand span{color:var(--chalk)}
.site-head nav ul{display:flex;gap:4px;list-style:none;margin:0;padding:0;flex-wrap:wrap}
.site-head nav a{display:flex;align-items:center;min-height:var(--tap);padding:0 12px;
  text-decoration:none;color:var(--ink-soft);font-size:.95rem;font-weight:600;border-radius:999px}
.site-head nav a:hover,.site-head nav a[aria-current="page"]{background:var(--chalk-soft);color:var(--chalk)}

/* type */
h1{font-size:clamp(1.7rem,4.4vw,2.5rem);line-height:1.15;letter-spacing:-.025em;margin:0 0 .4em}
h2{font-size:clamp(1.3rem,3vw,1.65rem);line-height:1.25;letter-spacing:-.02em;margin:2.4em 0 .6em}
h3{font-size:1.1rem;margin:1.8em 0 .4em}
p,li{max-width:var(--measure)}
.lede{font-size:1.08rem;color:var(--ink-soft)}
.eyebrow{font-size:.78rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;
  color:var(--chalk);margin:0 0 .6em}

/* cards — sharp corners like pattern paper, pill buttons */
.sheet{background:var(--paper-2);border:1px solid var(--rule);border-radius:0;padding:20px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:var(--tap);
  padding:0 22px;border-radius:999px;border:1px solid var(--chalk);background:var(--chalk);
  color:#fff;font:inherit;font-weight:700;cursor:pointer}
.btn:hover{background:#173F84}
.btn-ghost{background:transparent;color:var(--chalk)}
.btn-ghost:hover{background:var(--chalk-soft)}

/* calculator */
.calc{margin:24px 0 8px}
.calc-grid{display:grid;gap:22px;grid-template-columns:minmax(0,1fr)}
@media(min-width:900px){.calc-grid{grid-template-columns:minmax(0,1fr) minmax(0,1.05fr)}}
fieldset{border:0;padding:0;margin:0 0 18px}
legend{font-size:.78rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;
  color:var(--ink-soft);padding:0;margin-bottom:10px}
.field{margin-bottom:12px}
.field label{display:block;font-size:.9rem;font-weight:600;margin-bottom:4px}
.field .hint{display:block;font-size:.8rem;color:var(--ink-soft);font-weight:400}
input[type=number],select{width:100%;min-height:var(--tap);padding:8px 12px;font:inherit;
  font-variant-numeric:tabular-nums;background:#fff;color:var(--ink);
  border:1px solid var(--rule);border-radius:0}
input[type=number]:focus,select:focus{border-color:var(--chalk)}
.row2{display:grid;gap:12px;grid-template-columns:1fr 1fr}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{position:relative}
.chip input{position:absolute;opacity:0;width:100%;height:100%;margin:0;cursor:pointer}
.chip span{display:flex;align-items:center;justify-content:center;min-height:var(--tap);
  padding:0 16px;border:1px solid var(--rule);border-radius:999px;background:#fff;
  font-weight:600;font-size:.95rem;font-variant-numeric:tabular-nums}
.chip input:checked+span{background:var(--chalk);border-color:var(--chalk);color:#fff}
.chip input:focus-visible+span{outline:3px solid var(--chalk);outline-offset:2px}

/* results */
.result{border:1px solid var(--ink);background:var(--paper-2);padding:18px}
.total{display:flex;align-items:baseline;gap:10px;flex-wrap:wrap;margin:0 0 2px}
.total b{font-size:clamp(2.1rem,7vw,2.9rem);font-variant-numeric:tabular-nums;
  letter-spacing:-.03em;line-height:1;color:var(--chalk)}
.total .unit{font-size:1rem;font-weight:700;color:var(--ink-soft)}
.alt{font-size:.95rem;color:var(--ink-soft);font-variant-numeric:tabular-nums;margin:0 0 14px}
table{border-collapse:collapse;width:100%;font-size:.93rem}
th,td{text-align:left;padding:8px 10px;border-bottom:1px solid var(--rule);vertical-align:top}
th{font-size:.78rem;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-soft);font-weight:700}
td.n,th.n{text-align:right;font-variant-numeric:tabular-nums}
.tbl-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
.note{border-left:3px solid var(--chalk);background:var(--chalk-soft);padding:10px 14px;
  font-size:.92rem;margin:14px 0}
.note.warn{border-left-color:var(--cut);background:var(--cut-soft)}
.note p{margin:0;max-width:none}
.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}

/* layout diagram */
.diagram{margin-top:18px}
.diagram svg{width:100%;height:auto;display:block;border:1px solid var(--rule);background:#fff}
.key{display:flex;flex-wrap:wrap;gap:14px;margin-top:10px;font-size:.85rem;color:var(--ink-soft)}
.key i{display:inline-block;width:14px;height:14px;margin-right:6px;vertical-align:-2px;border:1px solid var(--ink)}

/* content bits */
.faq details{border-bottom:1px solid var(--rule)}
.faq summary{cursor:pointer;font-weight:700;padding:14px 0;min-height:var(--tap);
  display:flex;align-items:center}
.faq details p{margin:0 0 14px}
.related{display:grid;gap:12px;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));
  list-style:none;padding:0;margin:16px 0 0}
.related a{display:block;height:100%;padding:14px;background:var(--paper-2);
  border:1px solid var(--rule);text-decoration:none;color:var(--ink)}
.related a:hover{border-color:var(--chalk)}
.related b{display:block;color:var(--chalk);margin-bottom:2px}
.related span{font-size:.88rem;color:var(--ink-soft)}
.src{font-size:.85rem;color:var(--ink-soft)}
.breadcrumb{font-size:.85rem;color:var(--ink-soft);padding:14px 0 0}
.breadcrumb ol{list-style:none;display:flex;gap:6px;padding:0;margin:0;flex-wrap:wrap}

/* footer */
.site-foot{border-top:1px solid var(--rule);background:var(--paper-2);margin-top:56px;padding:22px 0}
.site-foot p{font-size:.88rem;color:var(--ink-soft);margin:0 0 8px;max-width:none}
.site-foot ul{display:flex;flex-wrap:wrap;gap:4px 2px;list-style:none;padding:0;margin:0}
.site-foot a{display:inline-flex;align-items:center;min-height:36px;padding:0 10px;font-size:.88rem}

main{padding-bottom:8px}
@media (prefers-reduced-motion:no-preference){
  .total b{transition:color .2s}
}

/* ===========================================================
   STITCHZA — full redesign override (warm atelier / textile)
   =========================================================== */
@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,400;9..144,500;9..144,600;9..144,700&family=Karla:wght@400;500;600;700&display=swap');

:root{
  --paper:#F3EDE3; --paper-2:#FBF7EF; --ink:#221B17; --ink-soft:#6A5D52;
  --rule:#D9CDBB; --chalk:#A8471E; --chalk-soft:#F3E2D6; --cut:#6E3B1E; --cut-soft:#EFE0D2;
  --grid:transparent; --brass:#B58A3C;
}
body{
  background-color:var(--paper)!important;
  background-image:
    radial-gradient(circle at 50% 50%,rgba(168,71,30,.05) 0 1px,transparent 1px),
    repeating-linear-gradient(45deg,rgba(110,59,30,.03) 0 2px,transparent 2px 9px)!important;
  background-size:18px 18px,auto!important;
  font-family:"Karla","Segoe UI",system-ui,sans-serif!important;
}
h1,h2,h3,.brand,.total b{font-family:"Fraunces","Georgia",serif!important;font-weight:600!important;letter-spacing:-.01em!important}
h2{color:var(--chalk)!important}
.brand span{color:var(--chalk)!important}

.site-head{background:var(--paper-2)!important;border-bottom:1px solid var(--rule)!important}
.site-head nav a{border-radius:0!important;border-bottom:2px solid transparent}
.site-head nav a:hover,.site-head nav a[aria-current="page"]{background:transparent!important;color:var(--chalk)!important;border-bottom-color:var(--chalk)!important}

.sheet,.result,.related a{
  background:var(--paper-2)!important;border:1px solid var(--rule)!important;border-radius:10px!important;
  box-shadow:0 1px 0 rgba(255,255,255,.6) inset,0 12px 30px -22px rgba(60,40,25,.5)!important;
}
.result{border:1.5px dashed var(--chalk)!important}
.btn{border-radius:8px!important;background:var(--chalk)!important;border:1px solid var(--chalk)!important;font-family:"Karla",sans-serif;letter-spacing:.02em}
.btn:hover{background:var(--cut)!important}
.btn-ghost{background:transparent!important;color:var(--chalk)!important}
.chip span,input[type=number],select{border-radius:8px!important}
.chip input:checked+span{background:var(--chalk)!important;border-color:var(--chalk)!important}
input[type=number]:focus,select:focus{border-color:var(--chalk)!important;box-shadow:0 0 0 3px var(--chalk-soft)!important}
.total b{color:var(--chalk)!important}
.note{border-left:3px solid var(--brass)!important;background:var(--chalk-soft)!important;border-radius:0 8px 8px 0}
.note.warn{border-left-color:var(--cut)!important}
th{color:var(--ink-soft)!important;font-family:"Karla",sans-serif}
.diagram svg{border:1px solid var(--rule)!important;background:var(--paper-2)!important;border-radius:8px}
.related b{color:var(--chalk)!important}
.site-foot{background:var(--paper-2)!important;border-top:1px solid var(--rule)!important}
a{color:var(--chalk)}