:root{--black:#000;--ink:#111;--white:#fff;--grey:#f4f4f4;--mid:#6b6b6b;--line:#e2e2e2;--radius:6px}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:"Open Sans",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;font-size:17px;line-height:1.65;color:var(--ink);background:var(--white)}
h1,h2,h3{font-family:Roboto,"Segoe UI",system-ui,Arial,sans-serif;line-height:1.15;margin:0 0 .5em;letter-spacing:-.01em}
h1{font-size:clamp(2.2rem,5.5vw,3.9rem);font-weight:800}
h1 span{display:block;font-weight:500;color:#bdbdbd;margin-top:.25em;font-size:.62em;letter-spacing:0}
h2{font-size:clamp(1.7rem,3.6vw,2.5rem);font-weight:800}
h3{font-size:1.15rem;font-weight:700}
p{margin:0 0 1em}
a{color:inherit}
.wrap{width:min(1120px,100% - 2.5rem);margin-inline:auto}
.narrow{max-width:820px}
.center{text-align:center}
.skip{position:absolute;left:-999px;top:0;background:#fff;color:#000;padding:.6rem 1rem;z-index:100}
.skip:focus{left:0}
:focus-visible{outline:3px solid #fff;outline-offset:2px;box-shadow:0 0 0 5px #000}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:var(--black);color:var(--white);border-bottom:1px solid #222}
.header-in{display:flex;align-items:center;gap:1.5rem;min-height:68px}
.brand{display:flex;align-items:center;gap:.7rem;text-decoration:none;font-family:Roboto,Arial,sans-serif;font-weight:500;font-size:1.15rem}
.brand-mark{display:grid;place-items:center;width:38px;height:38px;border:2px solid #fff;border-radius:4px;font-weight:800}
.brand-text strong,.footer-brand strong{font-weight:800;margin-left:.3em;border-bottom:2px solid #fff}
.nav{display:flex;gap:1.6rem;margin-left:auto}
.nav a{text-decoration:none;font-size:.95rem;opacity:.85}
.nav a:hover{opacity:1;text-decoration:underline;text-underline-offset:6px}

/* language switch */
.lang{display:flex;border:1px solid #444;border-radius:var(--radius);overflow:hidden}
.lang a{padding:.35rem .75rem;font-family:Roboto,Arial,sans-serif;font-size:.85rem;font-weight:700;text-decoration:none;color:#bdbdbd}
.lang a:hover{color:#fff}
.lang a[aria-current]{background:#fff;color:#000}

/* buttons */
.btn{display:inline-block;background:var(--white);color:var(--black);border:2px solid var(--white);padding:.7rem 1.3rem;border-radius:var(--radius);font-family:Roboto,Arial,sans-serif;font-weight:700;text-decoration:none;text-align:center;transition:transform .15s,background .15s,color .15s}
.btn:hover{transform:translateY(-2px)}
.btn-sm{padding:.5rem 1rem;font-size:.95rem;white-space:nowrap}
.btn-lg{padding:1rem 1.8rem;font-size:1.1rem}
.btn-ghost,.btn-ghost-light{background:transparent;color:var(--white)}
.btn-ghost:hover,.btn-ghost-light:hover{background:var(--white);color:var(--black)}
.grey .btn{background:var(--black);color:var(--white);border-color:var(--black)}
.grey .btn:hover{background:#222}
.btn-block{display:block;width:100%}

/* hero */
.hero{background:var(--black);color:var(--white);padding:clamp(3.5rem,9vw,7rem) 0 3.5rem;background-image:linear-gradient(135deg,#000 0,#000 60%,#161616 100%);position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;right:-8%;top:-20%;width:520px;height:520px;border:1px solid #2a2a2a;border-radius:50%;box-shadow:0 0 0 60px rgba(255,255,255,.015),0 0 0 120px rgba(255,255,255,.01)}
.hero-in{position:relative;z-index:1;max-width:860px;margin-left:max(1.25rem,calc((100% - 1120px)/2))}
.eyebrow{font-family:Roboto,Arial,sans-serif;text-transform:uppercase;letter-spacing:.14em;font-size:.8rem;font-weight:700;color:#bdbdbd;margin-bottom:1.2rem}
.eyebrow.dark{color:var(--mid)}
.lead{font-size:1.2rem;color:#e6e6e6;max-width:680px}
.cta-row{display:flex;flex-wrap:wrap;gap:1rem;margin:1.8rem 0}
.cta-row.center{justify-content:center}
.hero-points{list-style:none;display:flex;flex-wrap:wrap;gap:.6rem 1.6rem;padding:0;margin:1.5rem 0 .5rem;font-weight:600}
.hero-points li::before{content:"✓";margin-right:.5rem}
.fine{font-size:.85rem;color:#9a9a9a}
.fine.dark{color:var(--mid);margin-top:1rem}

/* facts */
.facts{background:var(--white);border-bottom:1px solid var(--line)}
.facts-in{display:grid;grid-template-columns:repeat(4,1fr)}
.facts-in div{padding:1.6rem 1rem;text-align:center;border-left:1px solid var(--line);display:flex;flex-direction:column}
.facts-in div:first-child{border-left:0}
.facts-in strong{font-family:Roboto,Arial,sans-serif;font-size:1.3rem}
.facts-in span{color:var(--mid);font-size:.9rem}

/* sections */
.section{padding:clamp(3.5rem,8vw,6rem) 0}
.section.grey{background:var(--grey)}
.section.dark{background:var(--black);color:var(--white)}
.section-lead{font-size:1.1rem;color:var(--mid);max-width:640px}
.dark .section-lead{color:#c9c9c9}
.grid{display:grid;gap:1.4rem;margin-top:2.2rem}
.grid-3{grid-template-columns:repeat(3,1fr)}
.card{background:var(--white);border:1px solid var(--line);border-top:4px solid var(--black);border-radius:var(--radius);padding:1.6rem}
.card p{color:#444;margin:0}
.card.outline{border:2px solid var(--black)}
.two-col{display:grid;grid-template-columns:1fr 1.2fr;gap:3rem;align-items:start}
.checks{list-style:none;padding:0;margin:0;display:grid;gap:.9rem}
.checks li{padding:1rem 1.2rem 1rem 3.2rem;border:1px solid #333;border-radius:var(--radius);position:relative}
.checks li::before{content:"✓";position:absolute;left:1.1rem;top:1rem;font-weight:800}
.checks.light li{border-color:var(--line);background:var(--grey)}

/* steps */
.steps{list-style:none;display:grid;grid-template-columns:repeat(4,1fr);gap:1.4rem;padding:0;margin:2.2rem 0 2.8rem}
.steps li{background:var(--white);border-radius:var(--radius);padding:1.6rem;border:1px solid var(--line)}
.steps p{margin:0;color:#444;font-size:.97rem}
.num{display:grid;place-items:center;width:42px;height:42px;background:var(--black);color:var(--white);border-radius:50%;font-family:Roboto,Arial,sans-serif;font-weight:800;margin-bottom:1rem}

/* faq */
.faq{margin-top:1.8rem;border-top:1px solid #cfcfcf}
details{border-bottom:1px solid #cfcfcf;padding:1.1rem .2rem}
summary{cursor:pointer;font-weight:700;font-family:Roboto,Arial,sans-serif;font-size:1.08rem;list-style:none;display:flex;justify-content:space-between;gap:1rem}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";font-size:1.5rem;line-height:1}
details[open] summary::after{content:"–"}
details p{margin:.8rem 0 0;color:#444}

/* final cta + footer */
.final{background:var(--black);color:var(--white);padding:clamp(3.5rem,8vw,6rem) 0;text-align:center}
.final p{color:#cfcfcf;font-size:1.15rem}
.site-footer{background:#0a0a0a;color:#c9c9c9;font-size:.95rem;padding-top:3rem}
.footer-in{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:2rem}
.footer-brand{font-family:Roboto,Arial,sans-serif;font-size:1.3rem;color:#fff;font-weight:500;margin-bottom:.6rem}
.footer-title{color:#fff;font-weight:700;margin-bottom:.6rem}
.site-footer a{text-decoration:underline;text-underline-offset:3px}
.copy{border-top:1px solid #222;margin-top:2rem;padding:1.2rem 0 5rem;font-size:.85rem;color:#8a8a8a}
.sticky-cta{display:none}

@media (max-width:900px){
  .nav{display:none}
  .header-in{justify-content:space-between}
  .grid-3,.steps{grid-template-columns:1fr 1fr}
  .two-col{grid-template-columns:1fr;gap:1.5rem}
  .facts-in{grid-template-columns:1fr 1fr}
  .facts-in div:nth-child(3){border-left:0}
  .facts-in div:nth-child(n+3){border-top:1px solid var(--line)}
  .footer-in{grid-template-columns:1fr}
  .hero::after{display:none}
}
@media (max-width:620px){
  body{font-size:16px}
  .grid-3,.steps{grid-template-columns:1fr}
  .cta-row .btn{width:100%}
  .btn-sm{display:none}
  .sticky-cta{display:block;position:fixed;inset:auto 0 0 0;padding:.7rem 1rem;background:#000;border-top:1px solid #333;z-index:60}
  .sticky-cta .btn{background:#fff;color:#000}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.btn{transition:none}}