:root{--ink:#14213d;--muted:#5b6578;--line:#dfe3ea;--bg:#f6f8fb;--card:#fff;--brand:#0f766e;--brand-d:#0b5a54;--brand-l:#e6f4f2;--accent:#f59e0b;--r:12px}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font:16px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;color:var(--ink);background:var(--bg)}
a{color:var(--brand-d)}
img,svg{max-width:100%}
.wrap{max-width:1040px;margin:0 auto;padding:0 16px}
header.site{background:#fff;border-bottom:1px solid var(--line)}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:60px;flex-wrap:wrap}
.logo{display:flex;align-items:center;gap:8px;font-weight:800;font-size:20px;color:var(--ink);text-decoration:none}
.logo span b{color:var(--brand)}
nav.top{display:flex;gap:4px;flex-wrap:wrap}
nav.top a{font-size:14px;color:var(--muted);text-decoration:none;padding:6px 10px;border-radius:8px}
nav.top a:hover,nav.top a[aria-current]{background:var(--brand-l);color:var(--brand-d)}
.hero{padding:24px 0 4px}
.tool-section{margin-top:8px!important}
h1{font-size:clamp(26px,4.5vw,38px);line-height:1.2;margin:0 0 8px}
.lead{font-size:18px;color:var(--muted);margin:0 0 16px;max-width:760px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:20px;box-shadow:0 1px 2px rgba(20,33,61,.04)}
.tool{margin:8px 0 28px}
.tc-settings{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:12px;margin-bottom:16px;align-items:end}
label{display:flex;flex-direction:column;justify-content:flex-end;font-size:13px;font-weight:600;color:var(--muted);gap:4px}
input,select{font:inherit;font-size:16px;color:var(--ink);padding:9px 10px;border:1px solid var(--line);border-radius:8px;background:#fff;width:100%;min-width:0}
input:focus,select:focus{outline:2px solid var(--brand);outline-offset:1px;border-color:var(--brand)}
.tc-tablewrap{overflow-x:auto;margin:0 -4px}
.tc-table{width:100%;border-collapse:collapse;min-width:560px}
.tc-table th,.tc-table td{padding:6px 4px;border-bottom:1px solid var(--line);text-align:left;font-size:14px}
.tc-table thead th{font-size:12px;text-transform:uppercase;letter-spacing:.04em;color:var(--muted)}
.tc-table tbody th{font-weight:700;white-space:nowrap;padding-right:8px}
.tc-table input{padding:7px 6px;font-size:15px}
.num{text-align:right!important;font-variant-numeric:tabular-nums;font-weight:700;white-space:nowrap}
.tc-actions{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0}
.btn{font:inherit;font-weight:700;font-size:15px;border:0;border-radius:10px;padding:10px 16px;background:var(--brand);color:#fff;cursor:pointer}
.btn:hover{background:var(--brand-d)}
.btn.ghost{background:#fff;color:var(--brand-d);border:1px solid var(--brand)}
.tc-results{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:12px;margin-top:8px}
.stat{background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:12px 14px;display:flex;flex-direction:column}
.stat span{font-size:13px;color:var(--muted);font-weight:600}
.stat strong{font-size:26px;font-variant-numeric:tabular-nums;line-height:1.2}
.stat em{font-style:normal;font-size:13px;color:var(--muted)}
.stat.big strong{font-size:32px;color:var(--brand-d)}
.stat.pay{background:var(--brand-l);border-color:#b7e0da}
.tc-sticky{display:none}
.note{grid-column:1/-1;font-size:14px;color:var(--muted);margin:4px 0 0}
.conv{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px}
fieldset{border:1px solid var(--line);border-radius:10px;padding:14px;display:grid;gap:10px;margin:0}
legend{font-weight:700;padding:0 6px}
.out{font-size:26px;font-weight:800;color:var(--brand-d);margin:4px 0 0}
main section{margin:28px 0}
h2{font-size:24px;line-height:1.3;margin:0 0 10px}
h3{font-size:18px;margin:18px 0 6px}
.prose{max-width:760px}
.prose p,.prose li{color:#2b3550}
.example{background:#fff;border-left:4px solid var(--brand);padding:12px 16px;border-radius:0 10px 10px 0}
table.ref{border-collapse:collapse;width:100%;max-width:760px;background:#fff;font-size:15px}
table.ref th,table.ref td{border:1px solid var(--line);padding:6px 10px;text-align:left}
table.ref th{background:var(--bg)}
details{background:#fff;border:1px solid var(--line);border-radius:10px;padding:12px 16px;margin:8px 0;max-width:760px}
summary{font-weight:700;cursor:pointer}
.tools-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px}
.tools-grid a{display:block;background:#fff;border:1px solid var(--line);border-radius:10px;padding:14px;text-decoration:none;color:var(--ink)}
.tools-grid a:hover{border-color:var(--brand)}
.tools-grid b{display:block;color:var(--brand-d)}
.tools-grid small{color:var(--muted)}
.disclaimer{font-size:13px;color:var(--muted);max-width:760px}
footer.site{border-top:1px solid var(--line);background:#fff;margin-top:40px;padding:20px 0;font-size:14px;color:var(--muted)}
footer.site .wrap{display:flex;gap:16px;flex-wrap:wrap;justify-content:space-between}
footer.site a{color:var(--muted)}
@media (max-width:600px){.card{padding:14px}.stat strong{font-size:22px}.stat.big strong{font-size:28px}
.lead{font-size:16px}
nav.top{width:100%;flex-wrap:nowrap;overflow-x:auto;padding-bottom:6px}
nav.top a{white-space:nowrap;background:var(--bg)}
.tc-settings{grid-template-columns:1fr 1fr;gap:10px}
.tc-table{min-width:0}
.tc-table thead{display:none}
.tc-table tbody tr{display:grid;grid-template-columns:1fr 1fr;gap:6px 10px;padding:10px 0;border-bottom:1px solid var(--line)}
.tc-table tbody th,.tc-table tbody td{border:0;padding:0}
.tc-table tbody th{align-self:center;font-size:15px}
.tc-table td.num{align-self:center;font-size:17px;grid-column:2;grid-row:1}
.tc-table td[data-label]::before{content:attr(data-label);display:block;font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);margin-bottom:2px}
.tc-results{grid-template-columns:1fr 1fr}
.tc-sticky{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:20;justify-content:space-between;gap:10px;background:var(--brand-d);color:#fff;padding:10px 16px;font-size:15px;box-shadow:0 -2px 8px rgba(0,0,0,.15)}
body{padding-bottom:48px}
.stat.big,.stat.pay{grid-column:1/-1}}
@media print{.tc-sticky,header.site,footer.site,nav,.tc-actions,.no-print,main section:not(.tool-section),.hero .lead{display:none!important}body{background:#fff}.card{border:0;box-shadow:none;padding:0}.tc-table input{border:0;padding:0}.tc-settings{grid-template-columns:repeat(3,1fr)}}