:root{
  --bg:#0b0d12; --text:#e8edf4; --muted:#b3c0d1;
  --card:#11141b; --border:#1e2530;
  --brand:#68a6ff; --brand-strong:#2f8dff;
  --shadow: 0 10px 30px rgba(0,0,0,.35);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font:16px/1.6 system-ui,-apple-system,Segoe UI,Roboto,Arial}
a{color:var(--brand);text-decoration:none}
a:hover{color:var(--brand-strong);text-decoration:underline}
/* header */
.site-header{position:sticky;top:0;display:flex;align-items:center;justify-content:space-between;
  padding:14px 20px;border-bottom:1px solid var(--border);background:rgba(11,13,18,.85);backdrop-filter:blur(8px)}
.brand{font-weight:800;letter-spacing:.2px}
.nav{display:flex;gap:1rem;align-items:center}
.btn{display:inline-block;padding:.6rem 1rem;border-radius:.8rem;background:var(--brand);color:#001225;font-weight:700;box-shadow:var(--shadow)}
.btn.sm{padding:.4rem .8rem}
.btn.lg{padding:.7rem 1.15rem}
.btn.ghost{background:transparent;border:1px solid var(--border);color:var(--text);box-shadow:none}
.btn.block{display:block;text-align:center;margin-top:.6rem}
/* hero */
.hero{padding:90px 20px 50px;max-width:1100px;margin:0 auto;text-align:center}
.hero-gradient{background:linear-gradient(180deg,rgba(47,141,255,.10),transparent)}
.hero h1{font-size:clamp(30px,4.5vw,48px);margin:.2rem 0 1rem}
.hero p{color:var(--muted);margin:0 auto 1.2rem;max-width:760px}
.hero-cta{display:flex;gap:.6rem;justify-content:center;flex-wrap:wrap}
/* stats */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:10px;max-width:1000px;margin:10px auto 20px;padding:0 20px}
.stat{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:14px;text-align:center}
.stat strong{display:block}
.stat span{color:var(--muted);font-size:.9rem}
/* cards / sections */
.card{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:16px}
.grid3{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));max-width:1100px;margin:20px auto;padding:0 20px}
.features h2{margin:.2rem 0 .4rem;font-size:18px}
.split{display:grid;grid-template-columns:2fr 1fr;gap:16px;max-width:1100px;margin:10px auto 40px;padding:0 20px}
.faq{max-width:900px;margin:20px auto 40px;padding:0 20px}
.faq details{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:12px 14px;margin:10px 0}
.faq summary{cursor:pointer;font-weight:700}
.cta{max-width:900px;margin:30px auto 60px;padding:20px}
/* page */
.page{max-width:900px;margin:40px auto;padding:0 20px}
/* footer */
.site-footer{border-top:1px solid var(--border);padding:24px 20px;text-align:center;color:var(--muted)}
@media (max-width:860px){.split{grid-template-columns:1fr}}