:root{
    /* light (default) */
    --bg:#F2F4F9; --bg-2:#E9EDF4;
    --panel:#FFFFFF; --panel-2:#F6F8FC;
    --border:#E0E5EF; --border-strong:#CCD4E1;
    --ink:#131B27; --ink-dim:#38424F; --muted:#69748A;
    --accent:#A96A0C; --accent-2:#855309; --on-accent:#FFFFFF;
    --grow:#1C8574; --ctrl:#3C5CA4;
    --good:#227C4E; --bad:#AE413A;
    --hair: rgba(19,27,39,.06);
    --shadow: 0 1px 2px rgba(19,27,39,.05), 0 24px 48px -32px rgba(19,27,39,.30);
    --radius:14px;
    --maxw:1120px;
    --font: "PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
    color-scheme: light;
  }
  @media (prefers-color-scheme: dark){
    :root{
      --bg:#0D1320; --bg-2:#0A0F1A;
      --panel:#141D2C; --panel-2:#1B2536;
      --border:#293446; --border-strong:#38445A;
      --ink:#E8ECF4; --ink-dim:#C0C9D7; --muted:#8492A7;
      --accent:#EFA648; --accent-2:#F7BC5D; --on-accent:#181103;
      --grow:#57BEAC; --ctrl:#8CA9EC;
      --good:#61C48D; --bad:#E2776D;
      --hair: rgba(255,255,255,.06);
      --shadow: 0 1px 0 rgba(255,255,255,.03), 0 26px 52px -30px rgba(0,0,0,.75);
      color-scheme: dark;
    }
  }
  :root[data-theme="light"]{
    --bg:#F2F4F9; --bg-2:#E9EDF4; --panel:#FFFFFF; --panel-2:#F6F8FC;
    --border:#E0E5EF; --border-strong:#CCD4E1;
    --ink:#131B27; --ink-dim:#38424F; --muted:#69748A;
    --accent:#A96A0C; --accent-2:#855309; --on-accent:#FFFFFF;
    --grow:#1C8574; --ctrl:#3C5CA4; --good:#227C4E; --bad:#AE413A;
    --hair: rgba(19,27,39,.06);
    --shadow: 0 1px 2px rgba(19,27,39,.05), 0 24px 48px -32px rgba(19,27,39,.30);
    color-scheme: light;
  }
  :root[data-theme="dark"]{
    --bg:#0D1320; --bg-2:#0A0F1A; --panel:#141D2C; --panel-2:#1B2536;
    --border:#293446; --border-strong:#38445A;
    --ink:#E8ECF4; --ink-dim:#C0C9D7; --muted:#8492A7;
    --accent:#EFA648; --accent-2:#F7BC5D; --on-accent:#181103;
    --grow:#57BEAC; --ctrl:#8CA9EC; --good:#61C48D; --bad:#E2776D;
    --hair: rgba(255,255,255,.06);
    --shadow: 0 1px 0 rgba(255,255,255,.03), 0 26px 52px -30px rgba(0,0,0,.75);
    color-scheme: dark;
  }

  *{ box-sizing:border-box; }
  body{ margin:0; background:var(--bg); color:var(--ink); font-family:var(--font);
    line-height:1.72; -webkit-font-smoothing:antialiased; text-rendering:optimizeLegibility; }
  .wrap{ max-width:var(--maxw); margin-inline:auto; padding-inline:24px; }
  section{ padding-block:clamp(56px,7vw,104px); }
  h1,h2,h3{ text-wrap:balance; line-height:1.18; margin:0; letter-spacing:-.01em; }
  p{ margin:0; }
  a{ color:inherit; }
  .num{ font-variant-numeric:tabular-nums; }

  /* ---------- top nav ---------- */
  .nav{ position:sticky; top:0; z-index:40; backdrop-filter:blur(10px);
    background:color-mix(in srgb, var(--bg) 82%, transparent);
    border-bottom:1px solid var(--border); }
  .nav-in{ max-width:var(--maxw); margin-inline:auto; padding:13px 24px;
    display:flex; align-items:center; gap:20px; }
  .brand{ display:flex; align-items:center; gap:10px; font-weight:800; letter-spacing:-.02em; font-size:17px; }
  .brand .dot{ width:11px; height:11px; border-radius:3px; background:var(--accent);
    box-shadow:0 0 0 4px color-mix(in srgb,var(--accent) 22%, transparent); }
  .brand small{ font-weight:600; color:var(--muted); letter-spacing:.02em; font-size:12.5px; }
  .nav-links{ display:flex; gap:26px; margin-left:auto; font-size:14px; }
  .nav-links a{ text-decoration:none; color:var(--ink-dim); transition:color .18s; }
  .nav-links a:hover{ color:var(--accent); }
  .toggle{ margin-left:8px; display:inline-grid; place-items:center; width:38px; height:34px;
    border:1px solid var(--border-strong); border-radius:9px; background:var(--panel);
    color:var(--ink-dim); cursor:pointer; font-size:15px; }
  .toggle:hover{ color:var(--accent); border-color:var(--accent); }
  @media (max-width:760px){ .nav-links{ display:none; } }

  /* ---------- hero (committed dark) ---------- */
  .hero{ position:relative; overflow:hidden; color:#EAEEF6;
    background:
      radial-gradient(120% 80% at 78% -10%, rgba(239,166,72,.16), transparent 55%),
      radial-gradient(90% 70% at 8% 8%, rgba(120,150,230,.10), transparent 60%),
      linear-gradient(180deg,#0C1220,#0A0F1A);
    border-bottom:1px solid #202b3d; }
  .hero canvas{ position:absolute; inset:0; width:100%; height:100%; opacity:.9; }
  .hero-in{ position:relative; z-index:2; max-width:var(--maxw); margin-inline:auto;
    padding:clamp(64px,9vw,120px) 24px clamp(52px,6vw,86px); }
  .eyebrow{ display:inline-flex; align-items:center; gap:9px; font-size:12.5px; font-weight:700;
    letter-spacing:.16em; text-transform:uppercase; color:#E7B057; }
  .eyebrow::before{ content:""; width:26px; height:1.5px; background:linear-gradient(90deg,#EFA648,transparent); }
  .hero h1{ font-size:clamp(31px,5.4vw,60px); font-weight:850; letter-spacing:-.025em;
    margin:20px 0 0; max-width:16ch; }
  .hero h1 .hl{ color:#F4B255; }
  .hero .lede{ margin-top:22px; max-width:52ch; font-size:clamp(15.5px,1.7vw,18.5px);
    color:#B7C1D3; }
  .hero .lede b{ color:#E7ECF5; font-weight:700; }
  .cta-row{ display:flex; flex-wrap:wrap; gap:14px; margin-top:34px; }
  .btn{ display:inline-flex; align-items:center; gap:9px; padding:13px 22px; border-radius:11px;
    font-weight:750; font-size:15px; text-decoration:none; cursor:pointer; border:1px solid transparent;
    transition:transform .16s, box-shadow .16s, background .16s; }
  .btn-primary{ background:linear-gradient(180deg,#F3B152,#E79A34); color:#1a1204;
    box-shadow:0 10px 26px -12px rgba(239,166,72,.7); }
  .btn-primary:hover{ transform:translateY(-2px); box-shadow:0 16px 32px -12px rgba(239,166,72,.75); }
  .btn-ghost{ border-color:#33405633; background:rgba(255,255,255,.04); color:#E7ECF5;
    border:1px solid #33415a; }
  .btn-ghost:hover{ border-color:#F3B152; color:#F3B152; }
  .stats{ display:flex; flex-wrap:wrap; gap:14px; margin-top:44px; }
  .stat{ flex:1 1 180px; padding:18px 20px; border-radius:13px;
    background:rgba(255,255,255,.035); border:1px solid #253247; }
  .stat .n{ font-size:30px; font-weight:850; letter-spacing:-.02em; color:#F4B255; }
  .stat .n small{ font-size:15px; color:#B7C1D3; font-weight:700; margin-left:2px; }
  .stat .t{ margin-top:3px; font-size:13.5px; color:#9EAABF; }

  /* ---------- generic section head ---------- */
  .kicker{ font-size:13px; font-weight:750; letter-spacing:.04em; color:var(--accent); }
  .h2{ font-size:clamp(24px,3.4vw,38px); font-weight:820; margin-top:12px; letter-spacing:-.02em; }
  .sub{ margin-top:14px; color:var(--ink-dim); max-width:64ch; font-size:16px; }
  .lead-quote{ margin-top:18px; font-size:clamp(17px,2vw,21px); font-weight:750;
    color:var(--ink); max-width:40ch; }
  .lead-quote .hl{ color:var(--accent); }

  /* ---------- problem list ---------- */
  .prob{ background:var(--panel); border:1px solid var(--border); border-radius:var(--radius); }
  .prob li{ display:flex; gap:15px; padding:17px 22px; list-style:none;
    border-top:1px solid var(--hair); font-size:15.5px; color:var(--ink-dim); }
  .prob li:first-child{ border-top:none; }
  .prob li b{ color:var(--ink); font-weight:750; }
  .prob .mk{ flex:none; width:7px; height:7px; margin-top:11px; border-radius:2px;
    background:var(--bad); transform:rotate(45deg); }
  .verdict{ margin-top:22px; padding:20px 24px; border-radius:var(--radius);
    border:1px solid var(--accent); background:color-mix(in srgb,var(--accent) 8%, var(--panel));
    font-size:clamp(16px,1.9vw,19px); font-weight:700; color:var(--ink); }
  .verdict .hl{ color:var(--accent); }

  /* ---------- what-is: diagram ---------- */
  .whatis{ background:var(--panel-2); border-block:1px solid var(--border); }
  .grid2{ display:grid; grid-template-columns:1.05fr .95fr; gap:44px; align-items:center; }
  @media (max-width:860px){ .grid2{ grid-template-columns:1fr; gap:32px; } }
  .role{ display:flex; gap:13px; padding:15px 0; border-top:1px solid var(--hair); }
  .role:first-of-type{ border-top:none; }
  .role .rk{ flex:none; font-size:12px; font-weight:800; letter-spacing:.08em; padding:4px 9px;
    border-radius:6px; height:max-content; text-transform:uppercase; }
  .rk.a{ color:var(--accent); background:color-mix(in srgb,var(--accent) 14%,transparent); }
  .rk.b{ color:var(--grow); background:color-mix(in srgb,var(--grow) 14%,transparent); }
  .rk.c{ color:var(--ctrl); background:color-mix(in srgb,var(--ctrl) 16%,transparent); }
  .role p{ font-size:15px; color:var(--ink-dim); }
  .role p b{ color:var(--ink); font-weight:750; }
  .diagram{ border:1px solid var(--border); background:var(--panel); border-radius:var(--radius);
    padding:26px; box-shadow:var(--shadow); }
  .diagram svg{ width:100%; height:auto; display:block; }
  .paradox{ margin-top:22px; text-align:center; font-weight:750; color:var(--ink); font-size:15px; }
  .paradox .hl{ color:var(--accent); }

  /* ---------- pillars ---------- */
  .cluster-head{ display:flex; align-items:baseline; gap:14px; margin:46px 0 20px; }
  .cluster-head:first-of-type{ margin-top:8px; }
  .cluster-tag{ font-size:12.5px; font-weight:800; letter-spacing:.12em; text-transform:uppercase;
    padding:5px 11px; border-radius:7px; }
  .cluster-tag.g{ color:var(--grow); background:color-mix(in srgb,var(--grow) 13%,transparent); }
  .cluster-tag.d{ color:var(--accent); background:color-mix(in srgb,var(--accent) 13%,transparent); }
  .cluster-head.d, .cluster-head.c{ }
  .cluster-tag.c{ color:var(--ctrl); background:color-mix(in srgb,var(--ctrl) 14%,transparent); }
  .cluster-head h3{ font-size:19px; font-weight:800; }
  .cluster-head span.mut{ color:var(--muted); font-size:14px; font-weight:600; }
  .cards{ display:grid; grid-template-columns:repeat(3,1fr); gap:16px; }
  @media (max-width:900px){ .cards{ grid-template-columns:repeat(2,1fr); } }
  @media (max-width:560px){ .cards{ grid-template-columns:1fr; } }
  .card{ position:relative; background:var(--panel); border:1px solid var(--border);
    border-radius:var(--radius); padding:22px 20px 20px; box-shadow:var(--shadow);
    transition:transform .18s, border-color .18s; }
  .card:hover{ transform:translateY(-3px); border-color:var(--accent); }
  .card .idx{ font-size:12.5px; font-weight:800; color:var(--muted); letter-spacing:.04em; }
  .card h4{ margin:9px 0 0; font-size:17.5px; font-weight:800; letter-spacing:-.01em; }
  .card .sell{ margin-top:9px; font-size:14.5px; font-weight:750; color:var(--accent); }
  .card .desc{ margin-top:9px; font-size:13.7px; color:var(--ink-dim); line-height:1.62; }
  .card::before{ content:""; position:absolute; left:0; top:18px; bottom:18px; width:3px; border-radius:3px;
    background:var(--edge,var(--accent)); opacity:.0; transition:opacity .18s; }
  .card:hover::before{ opacity:.9; }

  /* ---------- before/after ---------- */
  .ba{ display:grid; grid-template-columns:1fr 1fr; gap:0; border:1px solid var(--border);
    border-radius:var(--radius); overflow:hidden; box-shadow:var(--shadow); }
  @media (max-width:720px){ .ba{ grid-template-columns:1fr; } }
  .ba .col{ padding:26px 24px; background:var(--panel); }
  .ba .col.old{ background:var(--panel-2); }
  .ba .col.old .ct{ color:var(--bad); }
  .ba .col.new .ct{ color:var(--good); }
  .ba .ct{ font-size:12.5px; font-weight:800; letter-spacing:.1em; text-transform:uppercase; }
  .ba ul{ margin:16px 0 0; padding:0; display:flex; flex-direction:column; gap:12px; }
  .ba li{ list-style:none; display:flex; gap:11px; font-size:14.5px; color:var(--ink-dim); }
  .ba li b{ color:var(--ink); font-weight:700; }
  .ba .col.new li{ color:var(--ink); }
  .ba .g{ flex:none; margin-top:7px; width:6px; height:6px; border-radius:50%; background:currentColor; opacity:.5; }

  /* ---------- turnkey band ---------- */
  .band{ background:
      radial-gradient(90% 120% at 90% 0%, rgba(239,166,72,.13), transparent 55%),
      linear-gradient(180deg,#0C1220,#0B1019); color:#EAEEF6; border-block:1px solid #1f293b; }
  .band .h2{ color:#fff; }
  .band .sub{ color:#B4BFD2; }
  .qa{ display:grid; grid-template-columns:repeat(2,1fr); gap:14px; margin-top:30px; }
  @media (max-width:680px){ .qa{ grid-template-columns:1fr; } }
  .qa .item{ padding:18px 20px; border-radius:12px; background:rgba(255,255,255,.04);
    border:1px solid #263349; }
  .qa .q{ font-size:14px; color:#9DA9BF; }
  .qa .a{ margin-top:7px; font-size:15.5px; font-weight:750; color:#F3B152; }
  .band .punch{ margin-top:30px; font-size:clamp(18px,2.4vw,26px); font-weight:820;
    letter-spacing:-.02em; color:#fff; }

  /* ---------- comparison table ---------- */
  .tablewrap{ overflow-x:auto; border:1px solid var(--border); border-radius:var(--radius);
    box-shadow:var(--shadow); }
  table.cmp{ border-collapse:collapse; width:100%; min-width:640px; background:var(--panel); }
  .cmp th,.cmp td{ padding:14px 16px; text-align:left; border-bottom:1px solid var(--hair);
    font-size:14.5px; }
  .cmp thead th{ font-size:13px; font-weight:800; color:var(--muted); letter-spacing:.02em;
    background:var(--panel-2); position:sticky; top:0; }
  .cmp thead th.hi{ color:var(--accent); }
  .cmp td.dim{ color:var(--ink); font-weight:650; }
  .cmp td.tl{ background:color-mix(in srgb,var(--accent) 6%, var(--panel)); font-weight:700; }
  .cmp tbody tr:last-child td{ border-bottom:none; }
  .yes{ color:var(--good); font-weight:800; } .no{ color:var(--bad); font-weight:800; }
  .part{ color:var(--muted); font-weight:700; }

  /* ---------- fit ---------- */
  .fit{ display:grid; grid-template-columns:repeat(2,1fr); gap:14px; margin-top:26px; }
  @media (max-width:680px){ .fit{ grid-template-columns:1fr; } }
  .fit .f{ padding:18px 20px; border-radius:12px; border:1px solid var(--border);
    background:var(--panel); display:flex; gap:13px; align-items:flex-start; }
  .fit .f .k{ flex:none; width:9px; height:9px; border-radius:50%; margin-top:8px;
    background:var(--accent); }
  .fit .f p{ font-size:14.5px; color:var(--ink-dim); }
  .fit .f p b{ color:var(--ink); font-weight:750; }

  /* ---------- closing CTA ---------- */
  .close{ text-align:center; }
  .close .big{ font-size:clamp(22px,3.4vw,36px); font-weight:840; letter-spacing:-.02em;
    max-width:20ch; margin-inline:auto; }
  .close .sub2{ margin:18px auto 0; max-width:52ch; color:var(--ink-dim); font-size:16px; }
  .close .cta-row{ justify-content:center; }
  footer{ border-top:1px solid var(--border); color:var(--muted); font-size:13px;
    padding-block:26px; }
  footer .wrap{ display:flex; flex-wrap:wrap; gap:10px; justify-content:space-between; }

  /* ---------- contact / trial ---------- */
  .trial-note{ margin-top:14px; color:var(--muted); font-size:14px; }
  .trial-note b{ color:var(--accent); font-weight:750; }
  .contact-cards{ display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:18px;
    max-width:720px; margin:36px auto 0; }
  @media (max-width:620px){ .contact-cards{ grid-template-columns:1fr; } }
  .ccard{ background:var(--panel); border:1px solid var(--border); border-radius:var(--radius);
    padding:26px 22px 24px; box-shadow:var(--shadow);
    display:flex; flex-direction:column; align-items:center; gap:15px; }
  .ccard .ct-h{ font-size:12.5px; font-weight:800; letter-spacing:.12em; text-transform:uppercase;
    color:var(--accent); }
  .ccard .qr{ width:190px; height:190px; object-fit:contain; background:#fff;
    border-radius:12px; padding:9px; box-sizing:border-box; }
  .wa-box{ display:grid; place-items:center; width:190px; height:190px; border-radius:12px;
    background:var(--panel-2); border:1px solid var(--border); color:var(--accent); }
  .ccard .ct-t{ font-size:13.5px; color:var(--ink-dim); text-align:center; }
  .ccard .ct-t b{ color:var(--ink); font-weight:750; font-variant-numeric:tabular-nums; }
  .ccard .btn{ padding:11px 20px; font-size:14.5px; }

  :focus-visible{ outline:2px solid var(--accent); outline-offset:3px; border-radius:6px; }
  @media (prefers-reduced-motion:reduce){ *{ animation:none!important; transition:none!important; } }

  /* ---------- language switcher ---------- */
  .langs{ display:flex; margin-left:auto; border:1px solid var(--border-strong);
    border-radius:9px; overflow:hidden; }
  .nav-links + .langs{ margin-left:14px; }
  .langs a{ padding:7px 11px; font-size:12.5px; font-weight:750; text-decoration:none;
    color:var(--muted); transition:color .18s, background .18s; }
  .langs a + a{ border-left:1px solid var(--border-strong); }
  .langs a:hover{ color:var(--accent); }
  .langs a.on{ background:var(--panel-2); color:var(--accent); }

  /* latin locales: swap the CJK-first stack for a latin-first one */
  html[lang="en"], html[lang="hu"]{
    --font: system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  }
  html[lang="en"] .hero h1, html[lang="hu"] .hero h1{ max-width:20ch; }
  html[lang="en"] .close .big, html[lang="hu"] .close .big{ max-width:26ch; }