:root{
  --bg:#0f1724;
  --card:#0b1220;
  --muted:#9aa4b2;
  --accent:#4f46e5;
  --accent-2:#06b6d4;
  --radius:10px;
  --max-width:1100px;
}
*{box-sizing:border-box}
html,body{height:100%}
body{font-family:Inter,Segoe UI,Roboto,system-ui,-apple-system,"Helvetica Neue",Arial;line-height:1.5;margin:0;background:linear-gradient(180deg,#071026 0%,#071229 100%);color:#e6eef6}
.container{max-width:var(--max-width);margin:0 auto;padding:2rem}
.site-header{background:rgba(255,255,255,0.02);backdrop-filter:blur(4px);position:sticky;top:0;z-index:10}
.header-inner{display:flex;align-items:center;justify-content:space-between}
.logo{color:var(--accent);font-weight:700;text-decoration:none}
.site-nav{display:flex;gap:1rem}
.site-nav ul{list-style:none;margin:0;padding:0;display:flex;gap:1rem}
.site-nav a{color:var(--muted);text-decoration:none;padding:0.5rem}
.nav-toggle{display:none;background:transparent;border:0;color:var(--muted);font-size:1.25rem}
.skip-link{position:absolute;left:-9999px;top:auto;width:1px;height:1px;overflow:hidden}
.skip-link:focus{left:0;top:0;width:auto;height:auto;padding:0.5rem;background:#fff;color:#000;z-index:100}
.lead{color:var(--muted);margin-bottom:1rem}
.features-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:1rem;padding:0;margin:0;list-style:disc inside}
.hero{padding:6rem 0;background:linear-gradient(135deg,rgba(79,70,229,0.12),rgba(6,182,212,0.06));border-bottom:1px solid rgba(255,255,255,0.02)}
.hero h1{font-size:clamp(1.75rem,3.5vw,2.75rem);margin:0 0 0.5rem}
.btn{display:inline-block;background:var(--accent);color:#fff;padding:0.6rem 1rem;border-radius:8px;text-decoration:none}
.section{padding:4rem 0}
.card{background:linear-gradient(180deg,rgba(255,255,255,0.02),transparent);padding:1.25rem;border-radius:var(--radius);border:1px solid rgba(255,255,255,0.03)}
.site-footer{border-top:1px solid rgba(255,255,255,0.02);padding:1.25rem 0;margin-top:2rem}
.footer-inner{display:flex;justify-content:center}

@media (max-width:720px){
  .site-nav{display:none;position:absolute;top:64px;right:1rem;background:var(--card);padding:1rem;border-radius:8px;box-shadow:0 6px 18px rgba(0,0,0,0.5)}
  .site-nav.open{display:block}
  .nav-toggle{display:block}
  .site-nav ul{flex-direction:column}
}