:root{
    --ink:#10212E; --ink-soft:#3a4c56; --muted:#62727a;
    --paper:#fbfcfb; --surface:#ffffff; --line:#e4eae8; --line-strong:#cfd9d5;
    --pounamu:#0b6e4f; --pounamu-bright:#0e8a63; --pounamu-tint:#e7f3ee;
    --clay:#b5562f; --sky:#2c7a8c; --gold:#bd8a1e; --violet:#6d5ba6;
    --radius:14px; --radius-sm:10px;
    --shadow:0 1px 2px rgba(16,33,46,.06),0 8px 24px rgba(16,33,46,.06);
    --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,"Apple Color Emoji",sans-serif;
  }
  *{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%}
  body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);
    font-size:17px;line-height:1.6;font-feature-settings:"kern";-webkit-font-smoothing:antialiased}
  .wrap{max-width:760px;margin:0 auto;padding:0 18px}
  a{color:var(--pounamu)}
  h1,h2,h3{line-height:1.2;letter-spacing:-.02em;color:var(--ink)}
  h2{font-size:1.5rem;margin:2.4em 0 .5em}
  h3{font-size:1.12rem;margin:1.6em 0 .3em}
  .tnum{font-variant-numeric:tabular-nums}

  /* Header */
  header.site{background:var(--ink);color:#fff}
  .topbar{padding-top:14px;padding-bottom:14px;display:flex;align-items:center;gap:10px}
  .mainnav{border-top:1px solid rgba(255,255,255,.1)}
  .mainnav .wrap{display:flex;gap:6px;overflow-x:auto;padding-top:9px;padding-bottom:9px;
    -webkit-overflow-scrolling:touch;scrollbar-width:none}
  .mainnav .wrap::-webkit-scrollbar{display:none}
  .mainnav a{flex:0 0 auto;white-space:nowrap;font-size:.86rem;font-weight:600;color:#cfe0da;
    text-decoration:none;padding:6px 12px;border-radius:999px;border:1px solid transparent}
  .mainnav a:hover{color:#fff;background:rgba(255,255,255,.08)}
  .mainnav a[aria-current=page]{background:var(--pounamu-bright);color:#fff}
  .mark{width:26px;height:26px;flex:0 0 auto}
  .brand{font-weight:700;letter-spacing:-.01em;font-size:1.02rem;color:#fff}
  .brand b{color:var(--pounamu-bright)}
  .yrtag{margin-left:auto;font-size:.72rem;letter-spacing:.06em;text-transform:uppercase;
    background:rgba(255,255,255,.1);padding:5px 9px;border-radius:999px;color:#dfeee8}

  /* Hero intro */
  .hero{padding:30px 0 6px}
  .eyebrow{font-size:.74rem;letter-spacing:.14em;text-transform:uppercase;color:var(--pounamu);font-weight:700}
  .hero h1{font-size:2.05rem;margin:.18em 0 .25em}
  .hero p.lede{color:var(--ink-soft);margin:.2em 0 0;font-size:1.05rem}

  /* Calculator card */
  .calc{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
    box-shadow:var(--shadow);margin:22px 0 8px;overflow:hidden}
  .calc-grid{display:grid;grid-template-columns:1fr;gap:0}
  @media(min-width:680px){.calc-grid{grid-template-columns:1fr 1fr}}
  .pane{padding:22px}
  .pane.inputs{border-bottom:1px solid var(--line)}
  @media(min-width:680px){.pane.inputs{border-bottom:none;border-right:1px solid var(--line)}}
  .pane.result{background:#0f2230;color:#eef5f2}

  .field{margin:0 0 16px}
  .field:last-child{margin-bottom:0}
  label.lbl{display:block;font-size:.82rem;font-weight:700;letter-spacing:.01em;color:var(--ink-soft);margin:0 0 6px}
  .pane.result label.lbl{color:#a9c3ba}
  .amount{position:relative}
  .amount span.cur{position:absolute;left:13px;top:50%;transform:translateY(-50%);color:var(--muted);font-weight:600}
  input[type=number],select{width:100%;font:inherit;color:var(--ink);background:#fff;
    border:1.5px solid var(--line-strong);border-radius:var(--radius-sm);padding:12px 13px;appearance:none}
  input[type=number]{padding-left:26px;font-variant-numeric:tabular-nums;font-weight:600}
  input:focus,select:focus,button:focus-visible,.seg button:focus-visible{outline:2.5px solid var(--pounamu-bright);outline-offset:2px}
  .row2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
  .hint{font-size:.78rem;color:var(--muted);margin:5px 0 0}

  .seg{display:flex;flex-wrap:wrap;gap:6px;background:#eef2f0;border-radius:999px;padding:4px}
  .seg button{flex:1 1 auto;border:none;background:transparent;font:inherit;font-size:.84rem;font-weight:600;
    color:var(--ink-soft);padding:7px 8px;border-radius:999px;cursor:pointer;min-width:54px}
  .seg button[aria-pressed=true]{background:#fff;color:var(--pounamu);box-shadow:0 1px 2px rgba(0,0,0,.08)}

  .toggle{display:flex;align-items:center;gap:10px;justify-content:space-between;
    border:1.5px solid var(--line-strong);border-radius:var(--radius-sm);padding:11px 13px;cursor:pointer;background:#fff}
  .toggle span{font-size:.9rem;font-weight:600;color:var(--ink-soft)}
  .toggle input{width:20px;height:20px;accent-color:var(--pounamu);flex:0 0 auto}

  /* Result pane */
  .res-label{font-size:.8rem;letter-spacing:.12em;text-transform:uppercase;color:#8fb3a8;font-weight:700}
  .res-big{font-size:2.9rem;font-weight:800;letter-spacing:-.03em;line-height:1.05;color:#fff;margin:.05em 0 .1em}
  .res-per{font-size:.9rem;color:#a9c3ba;margin-bottom:14px}
  .res-seg{margin:0 0 18px}
  .res-seg .seg{background:rgba(255,255,255,.07)}
  .res-seg .seg button{color:#cfe0da}
  .res-seg .seg button[aria-pressed=true]{background:var(--pounamu);color:#fff;box-shadow:none}

  .bar{display:flex;height:14px;border-radius:999px;overflow:hidden;background:rgba(255,255,255,.12);margin:4px 0 16px}
  .bar i{display:block;height:100%}
  .seg-net{background:var(--pounamu-bright)} .seg-tax{background:var(--clay)}
  .seg-acc{background:var(--sky)} .seg-ks{background:var(--violet)} .seg-sl{background:var(--gold)}

  .lines{list-style:none;margin:0;padding:0}
  .lines li{display:flex;align-items:center;gap:9px;padding:9px 0;border-bottom:1px solid rgba(255,255,255,.08);font-size:.95rem}
  .lines li:last-child{border-bottom:none}
  .dot{width:10px;height:10px;border-radius:3px;flex:0 0 auto}
  .lines .nm{color:#d6e4df} .lines .val{margin-left:auto;font-weight:700;font-variant-numeric:tabular-nums;color:#fff}
  .lines li.total{margin-top:4px;padding-top:13px;border-top:1.5px solid rgba(255,255,255,.25)}
  .lines li.total .nm{color:#fff;font-weight:700} .lines li.total .val{color:var(--pounamu-bright);font-size:1.1rem}
  .lines li.sub .nm,.lines li.sub .val{color:#9fb8b0;font-weight:600}

  .rates{display:flex;gap:10px;margin-top:16px}
  .rate{flex:1;background:rgba(255,255,255,.06);border-radius:var(--radius-sm);padding:11px 12px}
  .rate .k{font-size:.72rem;letter-spacing:.06em;text-transform:uppercase;color:#8fb3a8}
  .rate .v{font-size:1.25rem;font-weight:800;color:#fff;font-variant-numeric:tabular-nums}

  .disc{font-size:.82rem;color:var(--muted);margin:14px 2px 0}
  .disc a{color:var(--pounamu)}

  /* Content */
  .content{padding:8px 0 10px}
  .content p{color:#23323b}
  .content ul{padding-left:1.1em}
  .content li{margin:.3em 0}
  table.tax{width:100%;border-collapse:collapse;margin:1em 0;font-size:.95rem}
  table.tax th,table.tax td{text-align:left;padding:9px 10px;border-bottom:1px solid var(--line)}
  table.tax th{font-size:.78rem;letter-spacing:.04em;text-transform:uppercase;color:var(--muted)}
  table.tax td.r,table.tax th.r{text-align:right;font-variant-numeric:tabular-nums}
  .callout{background:var(--pounamu-tint);border:1px solid #c7e3d8;border-left:4px solid var(--pounamu);
    border-radius:var(--radius-sm);padding:14px 16px;margin:1.2em 0}
  .callout b{color:var(--pounamu)}
  details.faq{border-bottom:1px solid var(--line);padding:4px 0}
  details.faq summary{cursor:pointer;font-weight:700;color:var(--ink);padding:13px 28px 13px 2px;list-style:none;position:relative}
  details.faq summary::-webkit-details-marker{display:none}
  details.faq summary::after{content:"+";position:absolute;right:4px;top:11px;font-size:1.3rem;color:var(--pounamu);font-weight:400}
  details.faq[open] summary::after{content:"–"}
  details.faq p{margin:.1em 2px 14px;color:#33444d;font-size:.97rem}

  footer.site{background:var(--ink);color:#c4d2cd;margin-top:40px;padding:26px 0 34px;font-size:.9rem}
  footer.site .wrap{padding-top:0}
  footer a{color:#9fdcc4}
  footer .updated{font-size:.82rem;color:#8aa49b;margin-top:10px}

  @media (prefers-reduced-motion: no-preference){
    .bar i{transition:width .25s ease}
  }

  /* related calculators */
  nav.related{margin:34px 0 6px}
  nav.related h2{font-size:1.15rem;margin:0 0 .5em}
  nav.related ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:8px}
  nav.related a{display:inline-block;border:1px solid var(--line-strong);border-radius:999px;
    padding:8px 14px;font-size:.9rem;font-weight:600;color:var(--ink-soft);text-decoration:none;background:#fff}
  nav.related a:hover{border-color:var(--pounamu);color:var(--pounamu)}
  nav.related a[aria-current=page]{background:var(--pounamu);border-color:var(--pounamu);color:#fff}