:root{--bg:#0b0d12;--fg:#e9ecf1;--muted:#9aa3af;--brand:#6aa5ff;--brand-2:#8b5cf6;--card:#141722;--border:#22263a}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:radial-gradient(1200px 600px at 80% -20%,#172033,transparent),var(--bg);color:var(--fg)}
a{color:inherit;text-decoration:none}
.container{max-width:1080px;margin:0 auto;padding:0 20px}

.site-header{position:sticky;top:0;background:rgba(11,13,18,.8);backdrop-filter:saturate(180%) blur(8px);border-bottom:1px solid var(--border)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{font-weight:700;letter-spacing:.02em;background:linear-gradient(45deg,var(--brand),var(--brand-2));-webkit-background-clip:text;background-clip:text;color:transparent}
.nav a{margin-left:16px;padding:8px 10px;border-radius:8px}
.nav a:hover{background:rgba(255,255,255,.06)}
.nav .active{background:rgba(255,255,255,.1)}

.hero{padding:72px 0;background:linear-gradient(180deg,rgba(138,92,246,.08),transparent)}
.hero-inner{display:flex;flex-direction:column;align-items:flex-start;gap:16px}
.hero h1{font-size:42px;margin:0}
.subtitle{color:var(--muted);max-width:720px}
.cta{display:flex;gap:12px}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:10px 16px;border:1px solid var(--border);border-radius:10px;color:var(--fg);background:transparent}
.btn.primary{border:0;background:linear-gradient(90deg,var(--brand),var(--brand-2));color:white}
.btn.full{width:100%}

.section{padding:48px 0}
.section.alt{background:linear-gradient(180deg,rgba(106,165,255,.06),transparent)}
.features{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;padding:0;margin:20px 0 0 0}
.features li{list-style:none;background:var(--card);border:1px solid var(--border);padding:12px;border-radius:10px}
.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.grid h3{margin:0 0 8px 0}
.grid p{margin:0;color:var(--muted)}

.download-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:20px}
.card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:16px}
.card-title{font-weight:600;margin-bottom:8px}
.note{margin-top:16px;color:var(--muted)}

.contact{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:20px}

.site-footer{border-top:1px solid var(--border);padding:24px 0;background:rgba(11,13,18,.6)}
.footer-inner{display:grid;grid-template-columns:1fr auto auto;gap:12px;align-items:center}
.footer-links a{margin-left:12px;color:var(--muted)}
.footer-copy{color:var(--muted)}

@media (max-width: 860px){
  .grid{grid-template-columns:1fr}
  .features{grid-template-columns:1fr}
  .download-grid{grid-template-columns:1fr}
  .contact{grid-template-columns:1fr}
  .hero h1{font-size:34px}
}