:root{--ink:#1B2028;--ink-soft:#565E6C;--line:#E2E5EA;--paper:#FFFFFF;--surface:#F6F7F9;--brand:#0F6B54;--brand-dark:#0B5342;--brand-tint:#E9F5F1;--amount:#0B5342;--focus:#1768D1;--radius:8px;--max:760px;--font:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--font);color:var(--ink);background:var(--paper);line-height:1.5;font-size:16px}
img{max-width:100%;display:block}
a{color:var(--brand-dark);text-decoration:none}
a:hover{text-decoration:underline}
:focus-visible{outline:2px solid var(--focus);outline-offset:2px}
.container{max-width:var(--max);margin:0 auto;padding:0 20px}
.container-wide{max-width:1040px;margin:0 auto;padding:0 20px}
.site-header{border-bottom:1px solid var(--line)}
.site-header .bar{max-width:1040px;margin:0 auto;padding:16px 20px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.logo{display:flex;align-items:baseline;gap:0;font-weight:700;font-size:1.15rem;color:var(--ink)}
.logo span{color:var(--brand)}
.logo:hover{text-decoration:none}
.site-nav a{color:var(--ink-soft);font-size:.95rem;font-weight:600}
.site-nav a:hover{color:var(--brand-dark)}
.site-footer{border-top:1px solid var(--line);background:var(--surface);margin-top:56px;padding:40px 0 24px}
.footer-lede{font-size:.95rem;color:var(--ink-soft);max-width:640px;margin:0 0 28px}
.footer-lede strong{color:var(--ink)}
.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px 20px;margin-bottom:32px}
.footer-col h3{font-size:.78rem;text-transform:uppercase;letter-spacing:.04em;color:var(--ink-soft);margin:0 0 16px}
.footer-col ul{list-style:none;margin:0;padding:0}
.footer-col li{margin-bottom:8px}
.footer-col a{color:var(--ink);font-size:.92rem}
.footer-col a:hover{color:var(--brand-dark)}
.footer-bottom{border-top:1px solid var(--line);padding-top:20px;display:flex;flex-wrap:wrap;gap:12px 20px;align-items:center;justify-content:space-between;font-size:.85rem;color:var(--ink-soft)}
.footer-legal{display:flex;flex-wrap:wrap;gap:4px 16px}
.footer-legal a{color:var(--ink-soft)}
.footer-legal a:hover{color:var(--brand-dark)}
.hero{padding:44px 0 8px;text-align:left}
.hero h1{font-size:1.9rem;margin:0 0 10px;letter-spacing:-.01em}
.hero p{color:var(--ink-soft);max-width:620px;margin:0;font-size:1.02rem}
.calc-grid{max-width:1040px;margin:32px auto 8px;padding:0 20px;display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.calc-card{border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px;display:flex;align-items:center;gap:12px;background:var(--paper)}
.calc-card:hover{border-color:var(--brand);text-decoration:none;background:var(--brand-tint)}
.calc-card .sym{width:40px;height:40px;flex:none;border-radius:6px;background:var(--brand-tint);color:var(--brand-dark);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:1.05rem}
.calc-card .name{font-weight:600;color:var(--ink);font-size:.98rem;line-height:1.3}
.calc-card .code{display:block;font-weight:400;color:var(--ink-soft);font-size:.82rem}
.page-section{max-width:1040px;margin:8px auto 0;padding:0 20px}
.page-section h2{font-size:1.1rem;margin:40px 0 12px}
.page-section p{color:var(--ink-soft);max-width:700px}
.calc-header{padding:32px 0 4px}
.calc-header h1{font-size:1.55rem;margin:0 0 8px;letter-spacing:-.01em}
.calc-header p.intro{color:var(--ink-soft);margin:0;font-size:.98rem}
.calc-card-main{border:1px solid var(--line);border-radius:var(--radius);margin-top:20px;overflow:hidden}
.denom-table{width:100%;border-collapse:collapse}
.denom-table thead th{text-align:left;font-size:.78rem;text-transform:uppercase;letter-spacing:.03em;color:var(--ink-soft);padding:10px 16px;background:var(--surface);border-bottom:1px solid var(--line)}
.denom-table .group-row td{padding:10px 16px 4px;font-weight:700;font-size:.82rem;text-transform:uppercase;letter-spacing:.03em;color:var(--brand-dark);background:var(--paper)}
.denom-table td{padding:8px 16px;border-bottom:1px solid var(--line);vertical-align:middle}
.denom-table tr:last-child td{border-bottom:none}
.denom-label{font-weight:600;font-size:.98rem;white-space:nowrap}
.denom-qty{width:130px}
.denom-qty input{width:100%;padding:8px 10px;border:1px solid var(--line);border-radius:6px;font-size:1rem;font-family:var(--font);text-align:center;color:var(--ink)}
.denom-qty input:focus{border-color:var(--brand)}
.denom-total{text-align:right;font-variant-numeric:tabular-nums;color:var(--ink);width:130px;white-space:nowrap}
.total-row td{padding:14px 16px;font-weight:700;font-size:1.05rem;background:var(--brand-tint);border-top:1px solid var(--line)}
.total-row .denom-total{color:var(--amount);font-size:1.15rem}
.calc-actions{display:flex;gap:10px;padding:16px;border-top:1px solid var(--line);background:var(--surface)}
.btn{appearance:none;border:1px solid var(--line);background:var(--paper);color:var(--ink);font-family:var(--font);font-size:.95rem;font-weight:600;padding:10px 18px;border-radius:6px;cursor:pointer}
.btn:hover{border-color:var(--ink-soft)}
.btn-primary{background:var(--brand);border-color:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-dark);border-color:var(--brand-dark)}
.btn:active{transform:translateY(1px)}
.slip-wrap{margin-top:28px}
.slip-wrap h2{font-size:1.1rem;margin:0 0 12px}
.slip{border:1px dashed var(--line);border-radius:var(--radius);padding:20px 22px;background:var(--paper);max-width:420px}
.slip-title{text-align:center;font-weight:700;margin-bottom:2px}
.slip-sub{text-align:center;font-size:.78rem;color:var(--ink-soft);margin-bottom:12px}
.slip-rule{border-top:1px dashed var(--line);margin:10px 0}
.slip table{width:100%;border-collapse:collapse;font-size:.92rem}
.slip table td{padding:3px 0}
.slip table td.s-qty{text-align:center;width:70px}
.slip table td.s-amt{text-align:right;font-variant-numeric:tabular-nums}
.slip .grand{font-weight:700;font-size:1.05rem;padding-top:8px}
.slip .grand .s-amt{color:var(--amount)}
.slip-words{margin-top:10px;font-size:.85rem;color:var(--ink-soft);font-style:italic}
.slip-empty{text-align:center;color:var(--ink-soft);font-size:.9rem;padding:8px 0}
.slip-actions{display:flex;gap:10px;margin-top:16px}
.copy-feedback{font-size:.85rem;color:var(--brand-dark);margin-left:4px;display:none}
.copy-feedback.show{display:inline}
.slip .slip-group td{padding-top:8px;font-weight:700;font-size:.78rem;text-transform:uppercase;letter-spacing:.03em;color:var(--brand-dark)}
.info-block{margin:40px 0 8px;max-width:700px}
.info-block h2{font-size:1.05rem;margin:24px 0 8px}
.info-block li,.info-block p{color:var(--ink-soft);font-size:.95rem}
.static-page{padding:36px 0 20px;max-width:720px}
.static-page h1{font-size:1.6rem;margin-bottom:6px}
.static-page .updated{color:var(--ink-soft);font-size:.85rem;margin-bottom:24px}
.static-page h2{font-size:1.1rem;margin:28px 0 8px}
.static-page li,.static-page p{color:var(--ink-soft);font-size:.96rem}
.coin-toggle{padding:0 0 5px}
.coin-toggle label{display:inline-flex;align-items:center;gap:8px;font-size:.95rem;font-weight:600;cursor:pointer}
.coin-toggle input{width:18px;height:18px;accent-color:var(--brand)}
.denom-table [hidden]{display:none}
.slip-details{padding:16px;border-top:1px solid var(--line)}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.field{margin-bottom:12px}
.field:last-child{margin-bottom:0}
.field label{display:block;font-size:.85rem;font-weight:600;margin-bottom:4px}
.field label span{font-weight:400;color:var(--ink-soft)}
.field input,.field textarea{width:100%;padding:8px 10px;border:1px solid var(--line);border-radius:6px;font-family:var(--font);font-size:1rem;color:var(--ink);resize:vertical}
.field input:focus,.field textarea:focus{border-color:var(--brand)}
.slip-meta{font-size:.85rem;text-align:center;margin-bottom:4px}
.slip-meta div{margin-bottom:2px}
.slip-note{margin-top:10px;font-size:.88rem;white-space:pre-wrap;word-break:break-word}
.slip-note:empty{display:none}
@media (max-width:560px){
.field-row{grid-template-columns:1fr;gap:0}
}
@media print{
@page{margin:15mm}
body *{visibility:hidden}
.slip,.slip *{visibility:visible}
.slip{position:absolute;top:0;left:0;right:0;margin:0 auto;width:100%;max-width:480px;padding:20px 50px;border-radius:0;border:1px solid #ddd;font-size:14px;color:#000}
.slip-title{font-size:1.2rem}
.slip-actions{display:none!important}
}
@media (max-width:860px){
.footer-grid{grid-template-columns:repeat(2,1fr)}
.calc-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:560px){
.site-header .bar{padding:14px 16px}
.hero{padding:28px 0 4px}
.hero h1{font-size:1.5rem}
.calc-grid{grid-template-columns:1fr;padding:0 16px;margin-top:24px}
.calc-header,.page-section,.static-page{padding-left:16px;padding-right:16px}
.container{padding:0 16px}
.footer-grid{grid-template-columns:1fr 1fr;gap:20px 14px}
.site-footer{padding:32px 0 20px}
.denom-label{white-space:normal}
.denom-qty{width:90px}
.denom-total{width:100px;font-size:.92rem}
.calc-actions{flex-direction:column}
.btn{width:100%;text-align:center}
.slip{max-width:100%;padding:16px}
.slip-actions{flex-direction:column}
.footer-bottom{flex-direction:column;align-items:flex-start}
}