:root{
  --ink:#101418;
  --ink-soft:#1B2128;
  --ink-line:#2A323C;
  --paper:#FAF8F3;
  --paper-dim:#F1EDE3;
  --fold:#E4DECE;
  --tag:#FFD644;
  --tag-deep:#E8BD1E;
  --profit:#148A4E;
  --profit-soft:#E4F3EB;
  --loss:#D42B2B;
  --loss-soft:#FBE9E9;
  --mut:#8A93A0;
  --mut-paper:#7A7264;
  --disp:'Archivo Black',system-ui,sans-serif;
  --body:'Inter',system-ui,sans-serif;
  --mono:'IBM Plex Mono',ui-monospace,monospace;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--ink);color:var(--paper);font-family:var(--body);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:inherit}
input,select,button{font:inherit}
:focus-visible{outline:3px solid var(--tag);outline-offset:2px}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}

/* ---------- Header ---------- */
header{padding:30px 0 10px}
.brandrow{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:14px;text-decoration:none;margin-left:8px}
.brandtag{background:var(--tag);color:var(--ink);font-family:var(--disp);font-size:20px;padding:11px 15px 9px;border-radius:9px;position:relative;letter-spacing:1px;line-height:1}
.brandtag::after{content:"";position:absolute;left:-6px;top:50%;width:9px;height:9px;background:var(--ink);border-radius:50%;transform:translateY(-50%)}
.brandname{font-family:var(--disp);font-size:19px;letter-spacing:.3px;line-height:1.15}
.brandname small{display:block;font-family:var(--body);font-weight:500;font-size:12px;color:var(--mut);letter-spacing:1.6px;text-transform:uppercase}
.freechip{font-family:var(--mono);font-size:12px;color:var(--ink);background:var(--paper);border-radius:999px;padding:6px 14px;font-weight:700;letter-spacing:1px}

/* ---------- Hero ---------- */
.hero{padding:44px 0 30px;max-width:800px}
.hero h1{font-family:var(--disp);font-size:clamp(30px,5.4vw,54px);line-height:1.06;letter-spacing:.2px}
.hero h1 .hl{background:var(--tag);color:var(--ink);padding:0 10px;border-radius:6px;display:inline-block;transform:rotate(-1deg)}
.hero p{margin-top:18px;color:#C7CDD6;font-size:17px;max-width:640px}

/* ---------- Tabs ---------- */
.tabs{position:sticky;top:0;z-index:40;background:var(--ink);padding:14px 0;border-bottom:1px solid var(--ink-line)}
.tablist{display:flex;gap:10px;flex-wrap:nowrap;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none;padding-bottom:2px}
.tablist::-webkit-scrollbar{display:none}
.tab{border:1px solid var(--ink-line);background:var(--ink-soft);color:var(--paper);border-radius:10px;padding:10px 16px;cursor:pointer;font-weight:600;font-size:14.5px;display:flex;align-items:center;gap:8px;transition:transform .12s ease,background .12s ease;white-space:nowrap;flex:0 0 auto}
.tab:hover{transform:translateY(-1px)}
a.tab{text-decoration:none}
.autofield .inwrap{opacity:.75;border-style:dashed}
.autofield label::after{content:" AUTO";font-family:var(--mono);font-size:9.5px;color:var(--tag);letter-spacing:1px}
.tab[aria-selected="true"]{background:var(--tag);color:var(--ink);border-color:var(--tag)}

/* ---------- Calculator sections ---------- */
.calc{display:none;padding:42px 0 20px}
.calc.active{display:block}
.calc-grid{display:grid;grid-template-columns:1fr 400px;gap:28px;align-items:start}
@media(max-width:920px){.calc-grid{grid-template-columns:1fr}}
.calc h2{font-family:var(--disp);font-size:clamp(22px,3.4vw,32px);margin-bottom:6px}
.calc .sub{color:var(--mut);font-size:15px;margin-bottom:26px;max-width:660px}

/* inputs card */
.panel{background:var(--ink-soft);border:1px solid var(--ink-line);border-radius:16px;padding:26px}
.fgrid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:16px 18px;min-width:0}
.field{min-width:0}
@media(max-width:560px){.fgrid{grid-template-columns:minmax(0,1fr)}}
.field label{display:block;font-size:13px;font-weight:600;color:#B9C0CA;margin-bottom:6px;letter-spacing:.2px}
.field .hint{font-weight:400;color:var(--mut);font-size:12px}
.inwrap{display:flex;align-items:center;background:var(--ink);border:1px solid var(--ink-line);border-radius:10px;overflow:hidden;transition:border-color .12s}
.inwrap:focus-within{border-color:var(--tag)}
.inwrap .aff{padding:0 11px;font-family:var(--mono);font-size:13.5px;color:var(--mut);white-space:nowrap;user-select:none}
.inwrap input,.inwrap select{flex:1;min-width:0;background:transparent;border:0;color:var(--paper);padding:11px 12px;font-family:var(--mono);font-size:16px;outline:none;appearance:textfield}
.inwrap input::-webkit-outer-spin-button,.inwrap input::-webkit-inner-spin-button{-webkit-appearance:none}
.inwrap select{padding-right:8px;cursor:pointer;width:100%;max-width:100%;text-overflow:ellipsis}
.inwrap select option{background:var(--ink-soft);color:var(--paper)}
.span2{grid-column:1/-1}
.divider{grid-column:1/-1;border:0;border-top:1px dashed var(--ink-line);margin:6px 0}
.sectionlabel{grid-column:1/-1;font-family:var(--mono);font-size:11.5px;letter-spacing:2px;text-transform:uppercase;color:var(--tag);margin-top:4px}
.modetoggle{display:inline-flex;background:var(--ink);border:1px solid var(--ink-line);border-radius:10px;padding:4px;gap:4px;margin-bottom:22px}
.modetoggle button{border:0;background:transparent;color:var(--mut);padding:8px 14px;border-radius:8px;cursor:pointer;font-weight:600;font-size:13.5px}
.modetoggle button.on{background:var(--tag);color:var(--ink)}

/* ---------- Receipt (signature) ---------- */
.receiptcol{position:sticky;top:86px}
@media(max-width:920px){.receiptcol{position:static}}
.receipt{background:var(--paper);color:var(--ink);border-radius:4px;padding:26px 24px 30px;font-family:var(--mono);box-shadow:0 18px 44px rgba(0,0,0,.45);position:relative}
.receipt::before,.receipt::after{content:"";position:absolute;left:0;right:0;height:10px;
  background-image:radial-gradient(circle at 8px 10px, var(--ink) 6px, transparent 6.5px);background-size:16px 10px;background-repeat:repeat-x}
.receipt::before{top:-1px}
.receipt::after{bottom:-1px;transform:rotate(180deg)}
.r-head{text-align:center;border-bottom:1.5px dashed #C9C2AF;padding-bottom:14px;margin-bottom:14px}
.r-head .r-store{font-family:var(--disp);font-size:16px;letter-spacing:1px}
.r-head .r-meta{font-size:11px;color:var(--mut-paper);margin-top:4px;letter-spacing:.5px}
.r-lines{font-size:13.5px}
.r-line{display:flex;justify-content:space-between;gap:10px;padding:3.5px 0;align-items:baseline}
.r-line .k{color:#3E4650}
.r-line .v{font-weight:500;white-space:nowrap}
.r-line.neg .v{color:var(--loss)}
.r-line.head{font-weight:700;letter-spacing:1px;font-size:11.5px;text-transform:uppercase;color:var(--mut-paper);padding-top:12px}
.r-line .dots{flex:1;border-bottom:1.5px dotted #C9C2AF;transform:translateY(-3px)}
.r-total{margin-top:14px;border-top:1.5px dashed #C9C2AF;padding-top:12px}
.r-bigrow{display:flex;justify-content:space-between;align-items:center;background:var(--profit-soft);border:1.5px solid var(--profit);border-radius:6px;padding:10px 12px;margin-top:8px}
.r-bigrow.loss{background:var(--loss-soft);border-color:var(--loss)}
.r-bigrow .lbl{font-size:11.5px;letter-spacing:2px;text-transform:uppercase;font-weight:700}
.r-bigrow .amt{font-size:22px;font-weight:700;color:var(--profit)}
.r-bigrow.loss .amt{color:var(--loss)}
.r-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:12px}
.r-stat{text-align:center;background:var(--paper-dim);border-radius:6px;padding:9px 4px}
.r-stat .n{font-size:15px;font-weight:700}
.r-stat .l{font-size:9.5px;letter-spacing:1.2px;text-transform:uppercase;color:var(--mut-paper);margin-top:2px}
.r-note{margin-top:14px;text-align:center;font-size:10.5px;color:var(--mut-paper);letter-spacing:.4px}
.r-barcode{margin:12px auto 0;height:30px;width:72%;background:repeating-linear-gradient(90deg,var(--ink) 0 2px,transparent 2px 5px,var(--ink) 5px 6px,transparent 6px 10px,var(--ink) 10px 13px,transparent 13px 16px)}
.copybtn{margin-top:16px;width:100%;border:1.5px solid var(--ink);background:transparent;color:var(--ink);font-family:var(--mono);font-weight:700;font-size:12.5px;letter-spacing:1px;padding:10px;border-radius:6px;cursor:pointer}
.copybtn:hover{background:var(--ink);color:var(--paper)}

/* ---------- SEO / content ---------- */
.content{background:var(--paper);color:var(--ink);margin-top:60px;padding:64px 0 30px}
.content h2{font-family:var(--disp);font-size:clamp(21px,3vw,28px);margin-bottom:14px}
.content h3{font-size:17px;font-weight:700;margin:26px 0 8px}
.content p{color:#3E4650;max-width:760px;margin-bottom:12px}
.content .cols{display:grid;grid-template-columns:1fr 1fr;gap:40px;margin-top:34px}
@media(max-width:760px){.content .cols{grid-template-columns:1fr}}
.feetable{width:100%;border-collapse:collapse;margin:20px 0 8px;font-size:14.5px}
.feetable th,.feetable td{text-align:left;padding:10px 12px;border-bottom:1.5px dashed #D8D1BE}
.feetable th{font-family:var(--mono);font-size:11.5px;letter-spacing:1.5px;text-transform:uppercase;color:var(--mut-paper)}
.feetable td:first-child{font-weight:700}
.feetable .mono{font-family:var(--mono);font-size:13.5px}
.faq details{border-bottom:1.5px dashed #D8D1BE;padding:14px 0}
.faq summary{font-weight:700;cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:12px}
.faq summary::after{content:"+";font-family:var(--mono);color:var(--tag-deep);font-size:20px;line-height:1}
.faq details[open] summary::after{content:"–"}
.faq p{margin-top:8px}

/* ---------- Footer ---------- */
footer{background:var(--paper);color:var(--mut-paper);padding:26px 0 40px;font-size:13px;border-top:1.5px dashed #D8D1BE}
footer .frow{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap}
footer a{color:#3E4650;text-decoration:none;font-weight:600}
footer a:hover{text-decoration:underline}

/* ---------- Mobile refinements ---------- */
@media(max-width:600px){
  .wrap{padding:0 14px}
  header{padding:22px 0 6px}
  .brandname{font-size:16px}
  .freechip{font-size:10.5px;padding:5px 10px}
  .hero{padding:26px 0 16px}
  .hero p{font-size:15px;margin-top:12px}
  .tabs{padding:10px 0}
  .tab{padding:9px 13px;font-size:13.5px}
  .calc{padding:26px 0 10px}
  .calc .sub{font-size:14px;margin-bottom:18px}
  .calc-grid{gap:18px}
  .panel{padding:18px 14px;border-radius:14px}
  .fgrid{gap:13px}
  .field label{font-size:12.5px}
  .inwrap input,.inwrap select{font-size:16px;padding:12px 10px}
  .inwrap .aff{padding:0 9px;font-size:13px}
  .modetoggle{display:flex;width:100%;margin-bottom:16px}
  .modetoggle button{flex:1;padding:10px 4px;font-size:12.5px}
  .receipt{padding:20px 16px 24px}
  .r-lines{font-size:13px}
  .r-bigrow .amt{font-size:19px}
  .r-stat .n{font-size:13.5px}
  .content{margin-top:40px;padding:44px 0 20px}
  .feetable{font-size:13px;display:block;overflow-x:auto;white-space:nowrap}
  footer .frow{flex-direction:column;gap:8px}
}

/* ---------- Mobile ---------- */
@media(max-width:760px){
  .tablist{flex-wrap:nowrap;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none;padding-bottom:2px}
  .tablist::-webkit-scrollbar{display:none}
  .tab{flex:0 0 auto;font-size:13.5px;padding:9px 13px;white-space:nowrap}
  .hero{padding:28px 0 18px}
  .hero p{font-size:15.5px}
  header{padding:22px 0 6px}
  .freechip{display:none}
  .panel{padding:18px 14px}
  .fgrid{gap:12px 14px}
  .calc{padding:28px 0 8px}
  .calc .sub{margin-bottom:18px}
  .receipt{padding:22px 16px 26px}
  .r-stats .n{font-size:13px}
  .content{padding:44px 0 20px}
  .modetoggle{width:100%;flex-wrap:wrap}
  .modetoggle button{flex:1;min-width:120px}
}

/* ---------- Tool grid + breadcrumbs ---------- */
.toolgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:22px}
@media(max-width:860px){.toolgrid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:540px){.toolgrid{grid-template-columns:1fr}}
.toolcard{display:block;background:#fff;border:1.5px solid #E4DECE;border-radius:12px;padding:16px 16px 14px;text-decoration:none;color:var(--ink);transition:transform .12s ease,border-color .12s ease}
.toolcard:hover{transform:translateY(-2px);border-color:var(--tag-deep)}
.toolcard .t{font-weight:700;font-size:15px;display:flex;align-items:center;gap:8px}
.toolcard .t::before{content:"";width:8px;height:8px;border-radius:2px;background:var(--tag);flex:0 0 auto}
.toolcard .d{font-size:13px;color:#6b6455;margin-top:5px;line-height:1.45}
.toolcard.here{border-color:var(--ink);background:var(--paper-dim)}
.toolcard.here .t::after{content:"YOU ARE HERE";font-family:var(--mono);font-size:9px;letter-spacing:1px;background:var(--ink);color:var(--tag);padding:2px 6px;border-radius:4px;margin-left:auto}
.crumbs{font-size:13px;color:var(--mut);padding:14px 20px 0}
.crumbs a{color:#C7CDD6;text-decoration:none}
.crumbs a:hover{color:var(--tag)}
@media (prefers-reduced-motion: reduce){*{transition:none!important;scroll-behavior:auto}}

/* ---------- Batch 0: dropdown nav, category grids, footer ---------- */
.tabwrap{position:relative;flex:0 0 auto}
.tabwrap .drop{display:none;position:absolute;top:calc(100% + 6px);left:0;background:var(--ink-soft);border:1px solid var(--ink-line);border-radius:12px;padding:8px;min-width:240px;z-index:60;box-shadow:0 12px 30px rgba(0,0,0,.4)}
.tabwrap .drop a{display:block;padding:8px 10px;border-radius:8px;font-size:14px;text-decoration:none;color:var(--paper);white-space:nowrap}
.tabwrap .drop a:hover,.tabwrap .drop a:focus{background:var(--ink)}
.tabwrap .drop a.all{color:var(--tag);font-weight:700;border-top:1px dashed var(--ink-line);margin-top:6px;padding-top:10px}
@media(min-width:761px) and (hover:hover){.tablist{overflow:visible;flex-wrap:wrap}.tabwrap:hover .drop,.tabwrap:focus-within .drop{display:block}}
.tab .car{font-size:10px;opacity:.7}
.catsec{margin-top:30px}.catsec:first-of-type{margin-top:14px}
.cath{display:flex;align-items:baseline;justify-content:space-between;gap:12px;flex-wrap:wrap}
.cath h3{font-family:var(--disp);font-size:18px;color:var(--ink)}
.cath p{font-size:13.5px;color:#7A7264;flex:1 1 100%;margin-top:2px}
.cath a{font-size:13px;font-weight:700;color:var(--ink);text-decoration:none;white-space:nowrap}
.cath a:hover{text-decoration:underline}
.catsec .toolgrid{margin-top:12px}
.fcols{display:grid;grid-template-columns:repeat(5,1fr);gap:22px;margin-bottom:26px}
.fcols h4{font-family:var(--mono);font-size:11px;letter-spacing:1.2px;text-transform:uppercase;color:var(--mut-paper);margin-bottom:10px}
.fcols a{display:block;font-weight:500;font-size:13px;line-height:1.4;padding:3px 0}
@media(max-width:900px){.fcols{grid-template-columns:repeat(3,1fr)}}
@media(max-width:560px){.fcols{grid-template-columns:repeat(2,1fr);gap:16px}}
.hub-posts{margin-top:40px}.hub-posts a{display:block;padding:10px 0;border-bottom:1px dashed #D8D1BE;text-decoration:none;color:var(--ink);font-weight:600}