:root{
  --bg:#0b0f1a;
  --card:#0f1724cc;
  --accent1:#7c5cff;
  --accent2:#00e0d0;
  --glass: rgba(255,255,255,0.04);
  --text:#e6eef8;
  --muted:#9fb0c8;
  --radius:14px;
  font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  background:
    radial-gradient(800px 400px at 10% 10%, rgba(124,92,255,0.08), transparent 10%),
    radial-gradient(600px 300px at 90% 90%, rgba(0,224,208,0.05), transparent 15%),
    var(--bg);
  color:var(--text);
  line-height:1.4;
}

/* container */
.container{max-width:1100px;margin:0 auto;padding:28px}

/* header */
.site-header{position:sticky;top:0;background:linear-gradient(180deg, rgba(11,15,26,0.6), rgba(11,15,26,0.3));backdrop-filter:blur(6px);border-bottom:1px solid rgba(255,255,255,0.03)}
.header-inner{display:flex;align-items:center;justify-content:space-between}
.logo{font-weight:700;font-size:1.4rem;background:linear-gradient(90deg,var(--accent1),var(--accent2));-webkit-background-clip:text;background-clip:text;color:transparent}
nav .btn{margin-left:8px}

/* hero */
.hero{padding:64px 0; text-align:center}
.hero-inner h1{font-size:3rem;margin:0 0 8px}
.tagline{color:var(--muted);margin:0 0 18px}
.hero-actions{display:flex;gap:12px;justify-content:center;margin-bottom:10px}
.demo-note{color:var(--muted);font-size:0.9rem}

/* buttons */
.btn{display:inline-block;padding:10px 18px;border-radius:10px;border:0;cursor:pointer;font-weight:600}
.btn-primary{background:linear-gradient(90deg,var(--accent1),var(--accent2));color:#02121a;box-shadow:0 6px 18px rgba(0,0,0,0.35)}
.btn-ghost{background:transparent;border:1px solid rgba(255,255,255,0.06);color:var(--text)}

/* features */
.features{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;margin:30px 0}
.card{background:linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));padding:20px;border-radius:12px;border:1px solid rgba(255,255,255,0.03)}

/* reviews */
.reviews{margin:40px 0}
.small-note{color:var(--muted);font-size:0.9rem;margin-bottom:12px}
.reviews-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:14px}
.review{display:flex;gap:12px;background:var(--card);padding:12px;border-radius:12px;border:1px solid rgba(255,255,255,0.02)}
.avatar{width:56px;height:56px;border-radius:12px;background:linear-gradient(135deg,var(--accent2),var(--accent1));display:flex;align-items:center;justify-content:center;font-weight:700;color:#02121a}
.meta{color:var(--text);font-size:0.95rem}
.role{color:var(--muted);font-weight:500;margin-left:8px;font-size:0.85rem}
.quote{color:var(--muted);margin:6px 0 0}

/* faq */
.faq .qa{background:var(--glass);padding:16px;border-radius:10px;margin:10px 0;border:1px solid rgba(255,255,255,0.03)}
.faq h3{margin:0 0 6px}
.faq p{margin:0;color:var(--muted)}

/* download CTA */
.download-cta{display:flex;align-items:center;justify-content:space-between;padding:20px;background:linear-gradient(180deg, rgba(255,255,255,0.02), transparent);border-radius:12px;margin:30px 0}
.download-cta .btn{font-size:1rem}

/* footer */
.site-footer{padding:16px 0;color:var(--muted);text-align:center;border-top:1px solid rgba(255,255,255,0.02)}

/* responsive tweaks */
@media (max-width:720px){
  .hero-inner h1{font-size:2.2rem}
  .download-cta{flex-direction:column;gap:12px;align-items:flex-start}
}