:root{
    --paper:#F2F4F3;
    --sheet:#FFFFFF;
    --ink:#18262E;
    --muted:#5A6870;
    --rule:#D3DAD8;
    --green:#0B7A5F;
    --green-soft:#E3F1EC;
    --amber:#9A6412;
    --amber-soft:#F6ECDC;
    --sans:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
    --cond:"IBM Plex Sans Condensed","IBM Plex Sans",system-ui,sans-serif;
    --xl:"Calibri","Carlito","Segoe UI",Arial,sans-serif;
    --wrap:1120px;
    --grain:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 0.09 0 0 0 0 0.15 0 0 0 0 0.18 0 0 0 .07 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  }
  *{box-sizing:border-box}
  html{scroll-behavior:smooth}
  @media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
  body{margin:0;background-color:var(--paper);background-image:var(--grain);background-size:220px;color:var(--ink);font-family:var(--sans);font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased;font-variant-numeric:tabular-nums}
  a{color:inherit}
  :focus-visible{outline:2px solid var(--green);outline-offset:3px;border-radius:2px}
  .wrap{max-width:var(--wrap);margin:0 auto;padding:0 28px}

  /* header */
  .top{position:sticky;top:0;z-index:10;background:rgba(242,244,243,.9);backdrop-filter:blur(6px);border-bottom:1px solid var(--rule)}
  .top .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
  .brand{font-weight:600;text-decoration:none;letter-spacing:-.01em;display:flex;align-items:center;gap:12px}
  .mono{width:34px;height:34px;border:1.5px solid var(--ink);border-radius:4px;display:grid;place-items:center;font-family:var(--cond);font-weight:600;font-size:15px;letter-spacing:-.02em;position:relative}
  .mono::after{content:"";position:absolute;right:3px;bottom:3px;width:5px;height:5px;background:var(--green)}
  .brand small{display:block;font-weight:400;font-size:13px;color:var(--muted);line-height:1.2}
  .nav{display:flex;gap:28px;align-items:center;font-size:15px}
  .nav a{text-decoration:none;color:var(--muted)}
  .nav a:hover{color:var(--ink)}
  .btn{display:inline-block;background:var(--ink);color:#fff;text-decoration:none;font:inherit;font-weight:500;font-size:15px;padding:10px 18px;border-radius:6px;border:1px solid var(--ink);cursor:pointer}
  .btn:hover{background:#0F1A20}
  .nav .btn{color:#fff}
  .btn-ghost{background:transparent;color:var(--ink)}
  .btn-ghost:hover{background:var(--ink);color:#fff}

  /* hero */
  .hero{position:relative;padding:80px 0 88px;overflow:hidden}
  .hero::before{content:"";position:absolute;inset:0;pointer-events:none;
    background-image:linear-gradient(var(--rule) 1px,transparent 1px),linear-gradient(90deg,var(--rule) 1px,transparent 1px);
    background-size:96px 24px;opacity:.45;
    -webkit-mask-image:radial-gradient(ellipse at 75% 45%,#000 0,transparent 62%);mask-image:radial-gradient(ellipse at 75% 45%,#000 0,transparent 62%)}
  .hero .wrap{position:relative;display:grid;grid-template-columns:1fr minmax(460px,1fr);gap:56px;align-items:center}
  h1{font-family:var(--cond);font-weight:600;font-size:clamp(40px,5.6vw,68px);line-height:1.02;letter-spacing:-.02em;margin:0 0 24px;max-width:13ch}
  .lede{font-size:20px;color:var(--muted);max-width:34em;margin:0 0 32px}
  .actions{display:flex;gap:12px;flex-wrap:wrap}

  /* before/after stage */
  .stage{position:relative;height:420px}
  .layer{position:absolute;top:0;left:0;right:0}
  .switch{position:absolute;right:0;bottom:-44px;display:inline-flex;border:1px solid var(--rule);border-radius:6px;overflow:hidden;background:var(--sheet);font-size:13px}
  .switch button{font:inherit;border:0;background:transparent;color:var(--muted);padding:5px 12px;cursor:pointer}
  .switch button+button{border-left:1px solid var(--rule)}
  .switch button[aria-pressed="true"]{background:var(--ink);color:#fff}

  /* messy excel */
  .xl{background:#fff;border:1px solid #BFC5C3;border-radius:6px;box-shadow:0 18px 40px -26px rgba(24,38,46,.45);font-family:var(--xl);font-size:13px;color:#222;overflow:hidden;transform:rotate(-1.2deg);transition:opacity .5s ease .55s,transform .6s ease .4s}
  .xl-title{background:#1E6E43;color:#fff;padding:6px 12px;font-size:12.5px;display:flex;justify-content:space-between}
  .xl-fx{display:flex;border-bottom:1px solid #D4D4D4;font-size:12px}
  .xl-fx span{padding:4px 8px;border-right:1px solid #D4D4D4;color:#444}
  .xl-fx span+span{flex:1;font-family:Consolas,"Courier New",monospace;color:#333;white-space:nowrap;overflow:hidden}
  .xl-grid{display:grid;grid-template-columns:28px 1.5fr 1fr .8fr 1fr;}
  .xl-grid > div{border-right:1px solid #E1E1E1;border-bottom:1px solid #E1E1E1;padding:4px 6px;height:27px;white-space:nowrap;overflow:hidden;text-overflow:clip;transition:transform .55s cubic-bezier(.5,0,.75,0),opacity .45s ease;transition-delay:var(--d,0s)}
  .xl-grid .h{background:#F3F3F3;color:#666;text-align:center;font-size:12px}
  .xl-grid .r{text-align:right}
  .xl-grid .y{background:#FFF2A8}
  .xl-grid .o{background:#FCD9B6}
  .xl-grid .red{color:#C00000;font-weight:700}
  .xl-grid .err{color:#C00000}
  .xl-grid .note{color:#7F7F7F;font-style:italic}
  .xl-grid .b{font-weight:700}
  .xl-tabs{display:flex;gap:2px;background:#F3F3F3;padding:4px 6px 0;font-size:12px;border-top:1px solid #D4D4D4}
  .xl-tabs span{padding:3px 10px;background:#E6E6E6;border-radius:3px 3px 0 0;color:#555}
  .xl-tabs span.on{background:#fff;color:#1E6E43;font-weight:600}

  /* clean ledger */
  .ledger{background:var(--sheet);border:1px solid var(--rule);border-radius:10px;box-shadow:0 1px 0 var(--rule),0 18px 40px -24px rgba(24,38,46,.35);overflow:hidden;opacity:0;transform:translateY(14px);transition:opacity .5s ease,transform .5s ease;pointer-events:none}
  .ledger-head{display:flex;gap:16px;white-space:nowrap;justify-content:space-between;align-items:baseline;padding:16px 20px;border-bottom:1px solid var(--rule);font-size:14px}
  .ledger-head strong{font-weight:600}
  .stamp{color:var(--green);font-size:13px;display:flex;align-items:center;gap:6px}
  .stamp::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--green)}
  .ledger table{width:100%;border-collapse:collapse;font-size:15px}
  .ledger th{font-weight:500;color:var(--muted);text-align:right;padding:10px 20px;font-size:13px;border-bottom:1px solid var(--rule)}
  .ledger th:first-child,.ledger td:first-child{text-align:left;white-space:normal}
  .ledger td{padding:11px 20px;text-align:right;border-bottom:1px solid #EDF1F0;white-space:nowrap}
  .ledger tr.total td{font-weight:600;border-bottom:0;background:#FAFBFB}
  .var{display:inline-block;min-width:62px;padding:1px 8px;border-radius:4px;font-size:13px;font-weight:500;text-align:center}
  .var.up{color:var(--green);background:var(--green-soft)}
  .var.down{color:var(--amber);background:var(--amber-soft)}
  .ledger-note{margin:0;padding:14px 20px;font-size:14px;color:var(--muted);border-top:1px solid var(--rule);background:#FAFBFB}
  .ledger-note b{color:var(--ink);font-weight:500}

  .stage.clean .xl{opacity:0;transform:rotate(-1.2deg) translateY(10px) scale(.97)}
  .stage.clean .xl-grid > div{transform:translate(var(--tx,0),var(--ty,30px)) rotate(var(--tr,0deg));opacity:0}
  .stage.clean .ledger{opacity:1;transform:none;pointer-events:auto;transition-delay:.75s}
  .stage.instant *{transition:none!important}

  /* sections */
  section{padding:88px 0;border-top:1px solid var(--rule)}
  h2{font-family:var(--cond);font-weight:600;font-size:clamp(30px,3.4vw,42px);line-height:1.1;letter-spacing:-.015em;margin:0 0 16px;max-width:20ch}
  .intro{color:var(--muted);font-size:19px;max-width:36em;margin:0 0 48px}

  .problems{display:grid;grid-template-columns:repeat(3,1fr);gap:40px}
  .problems h3{font-size:18px;font-weight:600;margin:0 0 8px}
  .problems p{margin:0;color:var(--muted)}
  .problems div{border-left:2px solid var(--ink);padding-left:18px}

  .services{border-top:1px solid var(--ink)}
  .service{display:grid;grid-template-columns:260px 1fr 220px;gap:40px;padding:32px 0;border-bottom:1px solid var(--rule)}
  .service h3{font-family:var(--cond);font-size:26px;font-weight:600;margin:0;line-height:1.15}
  .service p{margin:0 0 12px;max-width:38em}
  .service ul{margin:0;padding-left:18px;color:var(--muted)}
  .service li{margin:2px 0}
  .service .meta{font-size:15px;color:var(--muted)}
  .service .meta strong{display:block;color:var(--ink);font-weight:500}
  .service.featured{background:var(--sheet);margin:0 -28px;padding:32px 28px}

  .steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:32px;counter-reset:s}
  .steps li{counter-increment:s;position:relative;padding-top:56px}
  .steps li::before{content:counter(s);position:absolute;top:0;left:0;font-family:var(--cond);font-weight:600;font-size:40px;line-height:1;color:var(--green)}
  .steps li::after{content:"";position:absolute;top:20px;left:44px;right:-24px;height:1px;background:var(--rule)}
  .steps li:last-child::after{display:none}
  .steps h3{font-size:18px;margin:0 0 6px;font-weight:600}
  .steps p{margin:0;color:var(--muted);font-size:16px}

  .demo-band{background:var(--ink);background-image:var(--grain);background-size:220px;color:#E8EEEC;border-top:0;position:relative}
    .demo-band .wrap{position:relative;display:grid;grid-template-columns:1fr auto;gap:48px;align-items:center}
  .demo-band h2{color:#fff}
  .demo-band p{color:#B8C4C1;max-width:36em;margin:0;font-size:18px}
  .demo-band .btn{background:#fff;color:var(--ink);border-color:#fff}
  .demo-band .btn:hover{background:var(--green-soft)}

  .cases{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
  .case{background:var(--sheet);border:1px solid var(--rule);border-radius:8px;padding:24px}
  .case .before{color:var(--muted);font-size:15px;margin:0 0 4px;text-decoration:line-through;text-decoration-color:rgba(90,104,112,.5)}
  .case .after{font-family:var(--cond);font-size:26px;font-weight:600;line-height:1.15;margin:0 0 12px}
  .case p{margin:0;color:var(--muted);font-size:15px}

  .about .wrap{display:grid;grid-template-columns:1fr 1.1fr;gap:64px}
  .about p{margin:0 0 16px;max-width:34em}
  .facts{list-style:none;margin:0;padding:0;border-top:1px solid var(--ink)}
  .facts li{display:grid;grid-template-columns:140px 1fr;gap:16px;padding:14px 0;border-bottom:1px solid var(--rule);font-size:16px}
  .facts span{color:var(--muted)}
  .tags{display:flex;flex-wrap:wrap;gap:6px}
  .tags i{font-style:normal;font-size:14px;border:1px solid var(--rule);background:var(--sheet);border-radius:4px;padding:1px 8px}

  .contact .wrap{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:start}
  .contact-list{list-style:none;margin:0;padding:0;font-size:18px}
  .contact-list li{padding:14px 0;border-bottom:1px solid var(--rule);display:flex;justify-content:space-between;gap:16px}
  .contact-list span{color:var(--muted)}
  .contact-list a{text-decoration:none;font-weight:500}
  .contact-list a:hover{color:var(--green)}

  footer{padding:32px 0;color:var(--muted);font-size:14px;border-top:1px solid var(--rule)}

  /* demo dialog */
  dialog.demo{width:100vw;height:100vh;max-width:none;max-height:none;margin:0;padding:0;border:0;background:var(--paper)}
  dialog.demo::backdrop{background:rgba(24,38,46,.5)}
  dialog.demo iframe{width:100%;height:100%;border:0;display:block}

  @media (max-width:960px){
    .hero .wrap,.about .wrap,.contact .wrap,.demo-band .wrap{grid-template-columns:1fr;gap:40px}
    .hero .wrap{gap:32px}
    .stage{margin-bottom:44px}
    .problems,.cases{grid-template-columns:1fr;gap:28px}
    .service{grid-template-columns:1fr;gap:12px}
    .steps{grid-template-columns:1fr 1fr}
    .steps li::after{display:none}
    .nav a:not(.btn){display:none}
    .hero{padding:48px 0 64px}
    section{padding:64px 0}
  }
  @media (max-width:520px){
    .wrap{padding:0 18px}
    .steps{grid-template-columns:1fr}
    .stage{height:460px}
    .xl{font-size:11.5px}
    .xl-grid{grid-template-columns:22px 1.4fr 1fr .7fr .9fr}
    .ledger th,.ledger td{padding:9px 10px}
    .ledger-head{padding:14px 12px;font-size:13px;flex-wrap:wrap;white-space:normal;gap:4px 12px}
    .ledger-note{padding:12px}
    .service.featured{margin:0 -18px;padding:28px 18px}
    .facts li{grid-template-columns:1fr;gap:4px}
    .brand small{display:none}
  }

  /* self-hosted fonts (no Google requests: faster and GDPR-friendly) */
  @font-face{font-family:"IBM Plex Sans";font-style:normal;font-weight:400;font-display:swap;src:url(/fonts/ibm-plex-sans-latin-400-normal.woff2) format("woff2")}
  @font-face{font-family:"IBM Plex Sans";font-style:italic;font-weight:400;font-display:swap;src:url(/fonts/ibm-plex-sans-latin-400-italic.woff2) format("woff2")}
  @font-face{font-family:"IBM Plex Sans";font-style:normal;font-weight:500;font-display:swap;src:url(/fonts/ibm-plex-sans-latin-500-normal.woff2) format("woff2")}
  @font-face{font-family:"IBM Plex Sans";font-style:normal;font-weight:600;font-display:swap;src:url(/fonts/ibm-plex-sans-latin-600-normal.woff2) format("woff2")}
  @font-face{font-family:"IBM Plex Sans Condensed";font-style:normal;font-weight:500;font-display:swap;src:url(/fonts/ibm-plex-sans-condensed-latin-500-normal.woff2) format("woff2")}
  @font-face{font-family:"IBM Plex Sans Condensed";font-style:normal;font-weight:600;font-display:swap;src:url(/fonts/ibm-plex-sans-condensed-latin-600-normal.woff2) format("woff2")}

  .eyebrow{font-size:14px;font-weight:500;letter-spacing:.06em;text-transform:uppercase;color:var(--green);margin:0 0 18px}
  .call-line{margin:18px 0 0;font-size:15px;color:var(--muted)}
  .call-line a{color:var(--ink);font-weight:500;text-decoration:none;border-bottom:1px solid var(--rule)}
  .call-line a:hover{border-color:var(--ink)}

  /* language menu */
  .lang{position:relative;font-size:14px}
  .lang summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:6px;padding:7px 10px;border:1px solid var(--rule);border-radius:6px;color:var(--ink);font-weight:500;background:var(--sheet)}
  .lang summary::-webkit-details-marker{display:none}
  .lang summary::after{content:"";width:6px;height:6px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:translateY(-2px) rotate(45deg)}
  .lang[open] summary::after{transform:translateY(1px) rotate(-135deg)}
  .lang ul{position:absolute;right:0;top:calc(100% + 6px);list-style:none;margin:0;padding:4px;min-width:140px;background:var(--sheet);border:1px solid var(--rule);border-radius:8px;box-shadow:0 12px 28px -14px rgba(24,38,46,.4)}
  .lang li a{display:block;padding:7px 10px;border-radius:5px;text-decoration:none;color:var(--ink)}
  .lang li a:hover{background:var(--paper)}
  .lang li a[aria-current="true"]{font-weight:600}
  .lang li a[aria-current="true"]::after{content:" ✓";color:var(--green)}
  .nav .lang a{color:var(--ink)}

  .btn-call{display:inline-flex;align-items:center;gap:8px}
  .btn-call svg{width:16px;height:16px;flex:none}
  .nav .btn-call{background:var(--green);border-color:var(--green)}
  .nav .btn-call:hover{background:#086650}

  /* financial + business controller */
  .roles{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin:0 0 56px}
  .role{background:var(--sheet);border:1px solid var(--rule);border-radius:8px;padding:24px 26px}
  .role h3{font-family:var(--cond);font-size:24px;font-weight:600;margin:0 0 6px;line-height:1.15}
  .role p{margin:0 0 12px;color:var(--muted);font-size:16px}
  .role ul{margin:0;padding-left:18px;font-size:16px}
  .role li{margin:2px 0}

  .contact-actions{display:flex;gap:12px;flex-wrap:wrap}

  @media (max-width:960px){
    .roles{grid-template-columns:1fr}
    .nav{gap:10px}
    .nav .lang a{display:block}
  }
  @media (max-width:520px){
    .nav .btn:not(.btn-call){display:none}
    .nav .btn-call{padding:8px 12px}
    .lang summary{padding:6px 8px}
    .contact-list li{flex-direction:column;gap:2px}
  }

  /* campaign */
  .promo{background:var(--green);color:#fff;font-size:15px}
  .promo .wrap{display:flex;gap:10px 18px;align-items:center;justify-content:center;min-height:42px;padding-top:6px;padding-bottom:6px;flex-wrap:wrap;text-align:center}
  .promo a{color:#fff;font-weight:600;text-underline-offset:3px}
  .campaign .wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:start}
  .campaign .tag{display:inline-block;background:var(--amber-soft);color:var(--amber);font-size:14px;font-weight:600;padding:3px 10px;border-radius:4px;margin:0 0 16px}
  .campaign ul{margin:0 0 28px;padding-left:20px}
  .campaign li{margin:4px 0}
  .cal{background:var(--sheet);border:1px solid var(--rule);border-radius:10px;overflow:hidden}
  .cal div{display:grid;grid-template-columns:110px 1fr;gap:16px;padding:14px 20px;border-bottom:1px solid var(--rule);font-size:16px}
  .cal div:last-child{border-bottom:0;background:var(--green-soft)}
  .cal b{font-family:var(--cond);font-weight:600;color:var(--green)}
  .also{margin:28px 0 0;color:var(--muted);font-size:16px}
  .also a{color:var(--ink)}
  /* faq */
  .faq{max-width:820px;border-top:1px solid var(--ink)}
  .faq details{border-bottom:1px solid var(--rule)}
  .faq summary{cursor:pointer;list-style:none;padding:18px 36px 18px 0;font-weight:600;font-size:18px;position:relative}
  .faq summary::-webkit-details-marker{display:none}
  .faq summary::after{content:"+";position:absolute;right:4px;top:14px;font-size:24px;font-weight:400;color:var(--green)}
  .faq details[open] summary::after{content:"−"}
  .faq details p{margin:0 0 18px;color:var(--muted);max-width:44em}
  .foot-links{display:flex;flex-wrap:wrap;gap:8px 20px;margin-top:10px}
  .foot-links a{color:var(--muted)}
  @media (max-width:960px){.campaign .wrap{grid-template-columns:1fr;gap:32px}}
  @media (max-width:520px){.cal div{grid-template-columns:1fr;gap:2px}.faq summary{font-size:17px}}

  /* subpages */
  .page-hero{padding:72px 0 64px}
  .page-hero h1{max-width:18ch}
  .crumbs{font-size:14px;color:var(--muted);margin:0 0 18px}
  .crumbs a{color:var(--muted)}
  .wrap.prose{max-width:var(--wrap)}
  .wrap.prose > *{max-width:760px}
  .prose p{margin:0 0 16px}
  .prose h3{font-size:19px;margin:28px 0 8px}
  .grid2{display:grid;grid-template-columns:1fr 1fr;gap:24px}
  .card{background:var(--sheet);border:1px solid var(--rule);border-radius:8px;padding:24px 26px}
  .card h3{font-family:var(--cond);font-size:22px;font-weight:600;margin:0 0 8px;line-height:1.2}
  .card p{margin:0;color:var(--muted);font-size:16px}
  .card ul{margin:8px 0 0;padding-left:18px;font-size:16px}
  .cta-band{background:var(--ink);background-image:var(--grain);background-size:220px;color:#E8EEEC;border-top:0}
  .cta-band h2{color:#fff}
  .cta-band p{color:#B8C4C1;max-width:36em;font-size:18px;margin:0 0 24px}
  .cta-band .btn{background:#fff;color:var(--ink);border-color:#fff}
  .cta-band .btn-ghost{background:transparent;color:#fff;border-color:#fff}
  @media (max-width:960px){.grid2{grid-template-columns:1fr}}

/* v3: header CTA */
.nav .btn.btn-cta{background:var(--ink);border-color:var(--ink);color:#fff}
.nav .btn.btn-cta:hover{background:#0F1A20}
@media (max-width:520px){.nav .btn.btn-cta{display:inline-block;padding:8px 12px}}