:root{
  --bg:#f5f7fb;--card:#fff;--ink:#14213d;--muted:#5b6478;--line:#e3e8f1;
  --brand:#1d3ed8;--brand-2:#0b1f6e;--accent:#e63946;--ok:#0f9d58;--soft:#eef2ff;
  --r:14px;--sh:0 10px 30px rgba(20,33,61,.08);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.65 system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif}
a{color:var(--brand)}
img{max-width:100%;height:auto}
.wrap{max-width:1120px;margin:0 auto;padding:0 16px}
.skip{position:absolute;left:-9999px}.skip:focus{left:8px;top:8px;background:#fff;padding:8px;z-index:9}

/* header */
.top{background:var(--brand-2);color:#fff;position:sticky;top:0;z-index:20}
.top .wrap{display:flex;align-items:center;gap:12px;min-height:60px;flex-wrap:wrap}
.logo{color:#fff;text-decoration:none;font-weight:800;font-size:20px;letter-spacing:.3px;display:flex;align-items:center;gap:8px}
.logo b{background:var(--accent);border-radius:8px;padding:2px 8px;font-size:15px}
.logo small{font-weight:500;opacity:.75;font-size:12px;display:block;line-height:1}
.nav{margin-left:auto;display:flex;gap:4px;flex-wrap:wrap;align-items:center}
.nav a{color:#dfe6ff;text-decoration:none;font-size:14px;padding:6px 10px;border-radius:8px}
.nav a:hover,.nav a.on{background:rgba(255,255,255,.12);color:#fff}
.flags{display:flex;gap:4px;flex-wrap:nowrap;scrollbar-width:none;padding:6px 0 8px;width:100%;overflow-x:auto}
.flags a{display:inline-flex;align-items:center;gap:5px;text-decoration:none;color:#dfe6ff;font-size:13px;padding:4px 9px;border-radius:999px;border:1px solid rgba(255,255,255,.15);white-space:nowrap}
.flags a.on{background:#fff;color:var(--brand-2);font-weight:700}
.menu-btn{display:none;margin-left:auto;background:none;border:1px solid rgba(255,255,255,.3);color:#fff;border-radius:8px;padding:6px 10px;font-size:15px}
@media(max-width:820px){
  .menu-btn{display:block}
  .nav{display:none;width:100%;margin:0 0 8px}
  .nav.open{display:flex}
  .nav a{flex:1 1 45%;background:rgba(255,255,255,.06)}
}

/* hero */
.hero{background:linear-gradient(160deg,var(--brand-2) 0%,var(--brand) 100%);color:#fff;padding:26px 0 90px}
.hero h1{margin:0 0 6px;font-size:clamp(26px,4.4vw,40px);line-height:1.15;letter-spacing:-.5px}
.hero p{margin:0;opacity:.9;max-width:720px}
.crumbs{font-size:13px;opacity:.8;margin-bottom:8px}
.crumbs a{color:#fff}

/* calculator */
.calc-zone{margin-top:-70px}
.calc{background:var(--card);border-radius:20px;box-shadow:var(--sh);padding:22px;display:grid;grid-template-columns:1.1fr 1fr;gap:22px}
@media(max-width:820px){.calc{grid-template-columns:1fr;padding:16px}}
.lbl{display:block;font-weight:700;font-size:14px;margin:0 0 6px}
.seg{display:grid;grid-template-columns:1fr 1fr;background:var(--soft);border-radius:12px;padding:4px;margin-bottom:16px}
.seg button{border:0;background:none;padding:10px;border-radius:9px;font-weight:700;font-size:15px;color:var(--muted);cursor:pointer}
.seg button.on{background:#fff;color:var(--brand);box-shadow:0 2px 8px rgba(0,0,0,.08)}
.amount{position:relative;margin-bottom:16px}
.amount input{width:100%;font-size:28px;font-weight:800;padding:14px 80px 14px 16px;border:2px solid var(--line);border-radius:14px;color:var(--ink);outline:none}
.amount input:focus{border-color:var(--brand)}
.amount span{position:absolute;right:14px;top:50%;transform:translateY(-50%);font-weight:700;color:var(--muted)}
.rates{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:10px}
.rates button{border:2px solid var(--line);background:#fff;border-radius:10px;padding:8px 14px;font-weight:800;font-size:16px;cursor:pointer;color:var(--ink)}
.rates button.on{border-color:var(--brand);background:var(--brand);color:#fff}
.custom{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--muted)}
.custom input{width:90px;padding:8px 10px;border:2px solid var(--line);border-radius:10px;font-size:15px;font-weight:700}
.region{margin:0 0 14px}
.region select{width:100%;padding:10px;border:2px solid var(--line);border-radius:10px;font-size:15px;background:#fff}
.res{background:var(--soft);border-radius:16px;padding:18px;display:flex;flex-direction:column;gap:10px}
.row{display:flex;justify-content:space-between;align-items:baseline;gap:10px;border-bottom:1px dashed #cfd8f3;padding-bottom:8px}
.row:last-of-type{border:0}
.row span{color:var(--muted);font-size:15px}
.row strong{font-size:20px;font-variant-numeric:tabular-nums}
.row.big strong{font-size:30px;color:var(--brand)}
.row.vat strong{color:var(--accent)}
.res .note{font-size:13px;color:var(--muted);margin:0}
.actions{display:flex;gap:8px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:0;background:var(--brand);color:#fff;font-weight:700;font-size:14px;padding:10px 14px;border-radius:10px;cursor:pointer;text-decoration:none}
.btn.ghost{background:#fff;color:var(--brand);border:2px solid var(--brand)}
.btn.sm{padding:7px 10px;font-size:13px}

/* tools strip */
.tools{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px;margin:22px 0}
.tool{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:14px 16px;text-decoration:none;color:var(--ink);display:block}
.tool:hover{border-color:var(--brand)}
.tool b{display:block;color:var(--brand)}
.tool span{font-size:14px;color:var(--muted)}

/* content */
main.content{padding:10px 0 30px}
.box{background:var(--card);border-radius:var(--r);border:1px solid var(--line);padding:24px;margin:18px 0}
@media(max-width:600px){.box{padding:16px}}
.box h2{margin:0 0 10px;font-size:24px;line-height:1.25}
.box h3{font-size:19px;margin:20px 0 6px}
.box p{margin:0 0 12px}
.formula{background:#0b1f6e;color:#fff;border-radius:12px;padding:14px 16px;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:15px;margin:10px 0 14px;overflow-x:auto}
.tbl{width:100%;border-collapse:collapse;font-size:15px;margin:8px 0 14px}
.tbl th,.tbl td{padding:9px 10px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.tbl th{background:var(--soft);font-size:14px}
.tbl td.n,.tbl th.n{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}
.scroll{overflow-x:auto}
.faq details{border:1px solid var(--line);border-radius:12px;padding:12px 14px;margin:8px 0;background:#fff}
.faq summary{font-weight:700;cursor:pointer}
.faq details p{margin:8px 0 0}
.cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px}
.card{background:var(--soft);border-radius:12px;padding:14px}
.card h3{margin:0 0 4px;font-size:17px}
.tip{border-left:4px solid var(--accent);background:#fff5f5;padding:10px 14px;border-radius:8px;margin:10px 0 14px}
.list-articles{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:14px}
.list-articles a{display:block;background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:16px;text-decoration:none;color:var(--ink)}
.list-articles a:hover{border-color:var(--brand)}
.list-articles b{display:block;color:var(--brand);margin-bottom:4px}
.list-articles span{font-size:14px;color:var(--muted)}
.updated{font-size:13px;color:var(--muted)}
article.box h2{margin-top:22px}
article.box h2:first-child{margin-top:0}

/* invoice */
.inv{background:var(--card);border-radius:20px;box-shadow:var(--sh);padding:20px}
.inv table{width:100%;border-collapse:collapse}
.inv th{font-size:13px;color:var(--muted);text-align:left;padding:6px}
.inv td{padding:4px}
.inv input,.inv select{width:100%;padding:9px;border:2px solid var(--line);border-radius:9px;font-size:15px;background:#fff}
.inv td.tot{text-align:right;font-weight:700;white-space:nowrap;font-variant-numeric:tabular-nums}
.inv .del{background:none;border:0;color:var(--accent);font-size:20px;cursor:pointer}
.inv-sum{margin-left:auto;max-width:380px;margin-top:14px}
@media(max-width:700px){
  .inv thead{display:none}
  .inv tr.line{display:grid;grid-template-columns:1fr 1fr;gap:6px;border:1px solid var(--line);border-radius:12px;padding:8px;margin-bottom:8px}
  .inv tr.line td:first-child{grid-column:1/-1}
  .inv table,.inv tbody{display:block}
}

/* footer */
footer{background:#0a1236;color:#c6cdea;padding:28px 0 18px;margin-top:20px;font-size:14px}
footer a{color:#fff}
footer .cols{grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}
footer h4{color:#fff;margin:0 0 8px;font-size:15px}
footer ul{list-style:none;padding:0;margin:0}
footer li{margin:4px 0}
footer .legal{border-top:1px solid rgba(255,255,255,.1);margin-top:18px;padding-top:12px;font-size:13px;opacity:.85}

@media print{
  .top,.hero .crumbs,footer,.tools,.actions,.no-print{display:none!important}
  .hero{background:none;color:#000;padding:0}
  .calc-zone{margin:0}
  .inv{box-shadow:none}
}

/* --- compact calculator (v2) --- */
.rates-line{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-bottom:14px}
.rates-line .rates{margin:0}
.rates-line .js-custom{width:74px;padding:8px 10px;border:2px solid var(--line);border-radius:10px;font-size:16px;font-weight:700}
.calc .inputs .amount{margin-bottom:0}
@media(max-width:820px){
  .logo small{display:none}
  .logo{font-size:18px}
  .top .wrap{min-height:52px;gap:8px}
  .flags{padding:2px 0 8px}
  .flags a{font-size:12px;padding:3px 8px}
  .hero{padding:14px 0 64px}
  .hero h1{font-size:22px;margin:0}
  .hero p,.hero .crumbs{display:none}
  .calc-zone{margin-top:-54px}
  .calc{gap:12px;padding:12px;border-radius:16px}
  .seg{margin-bottom:10px}
  .seg button{padding:8px;font-size:14px}
  .lbl{font-size:13px;margin-bottom:4px}
  .rates-line{margin-bottom:10px;gap:6px;flex-wrap:nowrap}
  .rates{gap:6px;flex-wrap:nowrap}
  .rates button{padding:7px 10px;font-size:15px}
  .rates-line .js-custom{width:62px;padding:7px 8px;font-size:15px}
  .amount input{font-size:24px;padding:10px 64px 10px 12px;border-radius:12px}
  .region{margin-bottom:10px}
  .region select{padding:8px}
  .res{padding:10px 12px;gap:4px;border-radius:12px}
  .row{padding-bottom:4px}
  .row span{font-size:14px}
  .row strong{font-size:17px}
  .row.big strong{font-size:22px}
  .res .note{display:none}
  .actions .btn.sm{padding:5px 9px;font-size:12px}
}