/* HourlyMath — pay-stub design system */
:root{
  --ink:#17201b;
  --paper:#eef2ee;
  --card:#ffffff;
  --green:#0c7a43;
  --green-dark:#085c32;
  --highlight:#ffe27a;
  --line:#cfd9d1;
  --muted:#5b6862;
  --err:#b3261e;
  --radius:14px;
  --mono:'IBM Plex Mono',ui-monospace,SFMono-Regular,Menlo,monospace;
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{
  font-family:'Archivo',system-ui,-apple-system,'Segoe UI',sans-serif;
  background:var(--paper);color:var(--ink);min-height:100vh;
  /* ledger ruling */
  background-image:linear-gradient(var(--line) 1px, transparent 1px);
  background-size:100% 34px;
}
.wrap{max-width:860px;margin:0 auto;padding:20px 16px 56px}

/* header */
header{display:flex;align-items:center;gap:12px;padding:16px 0 12px}
header a{color:inherit;text-decoration:none;display:flex;align-items:center;gap:12px}
.punch{width:44px;height:44px;flex:0 0 44px;background:var(--green);border-radius:10px;position:relative}
.punch::before{content:"";position:absolute;left:9px;right:9px;top:10px;height:5px;background:#fff;border-radius:3px}
.punch::after{content:"";position:absolute;left:9px;top:21px;width:16px;height:5px;background:var(--highlight);border-radius:3px;box-shadow:0 9px 0 #fff}
h1{font-size:clamp(1.45rem,4vw,1.9rem);font-weight:800;letter-spacing:-.03em;line-height:1}
h1 em{font-style:normal;color:var(--green)}
.tag{font-size:.88rem;color:var(--muted);margin-top:3px}

/* calculator nav */
.calcs{display:flex;gap:7px;flex-wrap:wrap;margin:10px 0 20px}
.calcs a{text-decoration:none;color:var(--ink);font-weight:700;font-size:.78rem;border:2px solid var(--ink);border-radius:999px;padding:6px 11px;background:#fff;white-space:nowrap}
.calcs a:hover{background:var(--highlight)}
.calcs a.on{background:var(--ink);color:#fff}
.calcs a:focus-visible{outline:3px solid var(--green);outline-offset:2px}

/* calculator layout */
.calc{display:grid;grid-template-columns:1fr;gap:18px;margin-bottom:20px}
@media(min-width:720px){.calc{grid-template-columns:1fr 1fr;align-items:start}}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:0 2px 10px rgba(23,32,27,.06)}
.card h2{font-size:1.3rem;font-weight:800;letter-spacing:-.02em;margin-bottom:4px}
.card .sub{font-size:.9rem;color:var(--muted);margin-bottom:16px;line-height:1.5}

label{display:block;font-size:.82rem;font-weight:700;margin-bottom:6px}
.field{margin-bottom:14px}
.unitbox{display:flex;align-items:center;border:2px solid var(--ink);border-radius:10px;background:#fff;overflow:hidden}
.unitbox span{padding:0 12px;font-family:var(--mono);font-size:.9rem;color:var(--muted);background:var(--paper);align-self:stretch;display:flex;align-items:center;border-right:2px solid var(--ink)}
.unitbox span.suffix{border-right:none;border-left:2px solid var(--ink)}
.unitbox input,.unitbox select{border:none;flex:1;min-width:0;padding:13px 12px;font-size:1.05rem;font-family:var(--mono);color:var(--ink);background:#fff}
.unitbox input:focus,.unitbox select:focus{outline:none}
.unitbox:focus-within{outline:3px solid var(--green);outline-offset:2px}
.row{display:flex;gap:12px}
.row .field{flex:1}
.hint{font-size:.78rem;color:var(--muted);margin-top:5px;line-height:1.5}

/* the pay-stub result — signature element */
.stub{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:20px 22px;box-shadow:0 2px 10px rgba(23,32,27,.06);
  font-family:var(--mono);position:relative;
}
.stub::before{
  content:"— — — — — — — — — — — — — — —";
  display:block;text-align:center;color:var(--line);font-size:.7rem;
  letter-spacing:2px;margin-bottom:12px;overflow:hidden;white-space:nowrap;
}
.stub h3{font-family:'Archivo',sans-serif;font-size:.8rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-bottom:12px}
.stub .big{font-size:clamp(2rem,6vw,2.7rem);font-weight:700;color:var(--green-dark);letter-spacing:-.02em;line-height:1.1;font-variant-numeric:tabular-nums;margin-bottom:2px;overflow-wrap:anywhere}
.stub .biglabel{font-size:.78rem;color:var(--muted);margin-bottom:14px}
.stub .rows{border-top:2px dashed var(--line);padding-top:12px}
.stub .r{display:flex;justify-content:space-between;gap:10px;font-size:.92rem;padding:5px 0;font-variant-numeric:tabular-nums}
.stub .r .k{color:var(--muted)}
.stub .r .v{font-weight:700}
.stub .r.hl .v{background:var(--highlight);padding:0 6px;border-radius:4px}
.stub .note{font-size:.72rem;color:var(--muted);margin-top:12px;line-height:1.5;font-family:'Archivo',sans-serif}

/* content */
.content{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:0 2px 10px rgba(23,32,27,.06);margin-bottom:20px}
.content h2{font-size:1.25rem;font-weight:800;letter-spacing:-.02em;margin-bottom:12px}
.content h3{font-size:1rem;font-weight:800;margin:20px 0 8px}
.content p,.content li{font-size:.93rem;line-height:1.65;color:#2b352f;margin-bottom:10px}
.content ul,.content ol{padding-left:22px;margin-bottom:10px}
.content a{color:var(--green);font-weight:700}
.content .formula{background:var(--paper);border:2px solid var(--ink);border-radius:10px;padding:12px 16px;font-family:var(--mono);font-size:.92rem;text-align:center;margin:12px 0}
.content table{width:100%;border-collapse:collapse;margin:12px 0;font-size:.88rem;font-variant-numeric:tabular-nums}
.content th{background:var(--ink);color:#fff;text-align:left;padding:9px 12px}
.content td{padding:9px 12px;border-bottom:1px solid var(--line)}
.content tr:nth-child(even) td{background:#f6f9f6}
.faq details{border-bottom:1px dashed var(--line);padding:9px 0}
.faq details:last-of-type{border-bottom:none}
.faq summary{font-weight:700;font-size:.95rem;cursor:pointer;padding:5px 0;list-style-position:inside}
.faq summary:focus-visible{outline:3px solid var(--green);outline-offset:2px}
.faq p{font-size:.9rem;line-height:1.6;padding:6px 0 4px 18px}

/* grid of all calculators (homepage) */
.grid{display:grid;grid-template-columns:1fr;gap:12px}
@media(min-width:640px){.grid{grid-template-columns:1fr 1fr}}
.grid a{display:block;border:2px solid var(--ink);border-radius:12px;padding:14px 16px;text-decoration:none;color:var(--ink);background:#fff}
.grid a:hover{box-shadow:0 4px 0 var(--green)}
.grid a strong{display:block;font-size:1rem;margin-bottom:3px;color:var(--green-dark)}
.grid a span{font-size:.85rem;line-height:1.5;color:#2b352f}

footer{margin-top:30px;text-align:center;font-size:.78rem;color:var(--muted)}
footer p{max-width:640px;margin:0 auto 8px;line-height:1.6}
footer nav{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:8px}
footer nav a{color:var(--muted);text-decoration:none;font-weight:700}
footer nav a:hover{color:var(--green)}
a:focus-visible{outline:3px solid var(--green);outline-offset:2px}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}