:root{
  --bg:#0b1221; --card:#0f1724; --text:#e6eef8; --muted:#9fb0c8; --accent:#4f9aff;
  --container-max:1100px;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;padding:0;font-family:system-ui,-apple-system,'Segoe UI',Roboto,'Helvetica Neue',Arial;line-height:1.5;background:linear-gradient(180deg,var(--bg),#07101a);color:var(--text);
}
.container{max-width:var(--container-max);margin:0 auto;padding:2rem}
.site-header{border-bottom:1px solid rgba(255,255,255,0.03);backdrop-filter:saturate(120%) blur(4px)}
.site-header .container{display:flex;align-items:center;justify-content:space-between}
.brand{font-weight:700;color:var(--text);text-decoration:none}
.nav a{color:var(--muted);text-decoration:none;margin-left:1rem}
.nav .cta{background:var(--accent);color:#07203a;padding:0.5rem 0.8rem;border-radius:6px}
.hero{padding:4rem 0;text-align:center}
.hero h1{font-size:2.1rem;margin:0 0 0.5rem}
.lead{color:var(--muted);max-width:70ch;margin:0 auto}
.primary{display:inline-block;background:transparent;border:2px solid var(--accent);color:var(--accent);padding:0.6rem 1rem;border-radius:8px;text-decoration:none}
.features .grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1.2rem;margin-top:1rem}
article{background:linear-gradient(180deg,rgba(255,255,255,0.02),transparent);padding:1rem;border-radius:8px}
h2{margin-top:0}
.contact .cmd{background:#07101a;border-left:4px solid var(--accent);padding:0.8rem;color:var(--muted);overflow:auto}
.site-footer{border-top:1px solid rgba(255,255,255,0.03);padding:1rem 0;margin-top:2rem}

@media(min-width:900px){.hero h1{font-size:3rem}}