:root{
  --bg: #0b1220;
  --card: #0f172a;
  --text: #e5e7eb;
  --muted: #94a3b8;
  --brand: #00eeff;
  --brand-600: #0995cc;
  --border: #1f2937;
}
@media (prefers-color-scheme: light){
  :root{
    --bg:#ffffff;
    --card:#f8fafc;
    --text:#0f172a;
    --muted:#475569;
    --border:#e5e7eb;
  }
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", sans-serif;
  color:var(--text);
  background: radial-gradient(1200px 600px at 70% -10%, rgba(52,211,153,0.12), transparent 60%), var(--bg);
  line-height:1.6;
}
.container{max-width:1100px;margin:0 auto;padding:0 20px}
.site-header{
  position:sticky;top:0;backdrop-filter:saturate(150%) blur(8px);
  background: color-mix(in oklab, var(--bg) 85%, transparent);
  border-bottom:1px solid var(--border);
  z-index:50;
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 0}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--text);font-weight:800}
.brand.small span{font-weight:700;font-size:14px}
.nav{display:flex;gap:14px;align-items:center;flex-wrap:wrap}
.nav a{color:var(--text);opacity:0.9;text-decoration:none;padding:8px 10px;border-radius:10px}
.nav a:hover{background:var(--card)}
.nav a.ghost{opacity:0.7}
.divider{width:1px;height:22px;background:var(--border);margin:0 6px}
.theme-toggle{border:1px solid var(--border);background:var(--card);color:var(--text);padding:8px 10px;border-radius:12px;cursor:pointer}
.hero{padding:40px 0 10px}
.hero-inner{display:grid;grid-template-columns:1.1fr 0.9fr;gap:30px;align-items:center}
.hero-copy h1{font-size:44px;line-height:1.1;margin:0 0 10px}
.accent{background:linear-gradient(90deg,var(--brand),var(--brand-600));-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{font-size:18px;color:var(--muted)}
.cta{display:flex;gap:12px;margin:18px 0 6px}
.btn{background:linear-gradient(180deg,var(--brand),var(--brand-600));color:#0b1220;border:none;padding:12px 16px;border-radius:14px;font-weight:800;text-decoration:none;display:inline-block}
.btn.ghost{background:none;border:1px solid var(--border);color:var(--text)}
.bullets{display:flex;gap:16px;flex-wrap:wrap;padding:0;margin:16px 0 0;list-style:none}
.hero-visual{display:flex;justify-content:center}
.hero-visual img{width:100%;max-width:520px;border-radius:18px;box-shadow:0 20px 60px rgba(0,0,0,0.35);border:1px solid var(--border)}
.section{padding:56px 0}
.section.alt{background:linear-gradient(180deg, transparent, rgba(255,255,255,0.02));border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.card{background:var(--card);padding:22px;border-radius:16px;border:1px solid var(--border)}
.center{text-align:center}
.muted{color:var(--muted)}
.link-arrow{color:var(--brand);text-decoration:none;font-weight:600}
.site-footer{border-top:1px solid var(--border);padding:24px 0;background:color-mix(in oklab, var(--bg) 92%, transparent)}
.footer-inner{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}
.footer-nav{display:flex;gap:16px;flex-wrap:wrap}
.features-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:20px}
.feature{background:var(--card);padding:18px;border-radius:14px;border:1px solid var(--border)}
.download-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:12px}
.download-card{display:block;background:var(--card);border:1px solid var(--border);padding:20px;border-radius:14px;color:var(--text);text-decoration:none}
.download-card:hover{outline:2px solid var(--brand)}
.contact-form{display:grid;gap:12px;max-width:620px}
.form-row{display:grid;gap:6px}
input, textarea{width:100%;padding:12px;border-radius:12px;border:1px solid var(--border);background:var(--card);color:var(--text)}
input:focus, textarea:focus{outline:2px solid color-mix(in oklab, var(--brand) 55%, transparent);border-color:transparent}
.legal{max-width:820px}
.note{color:var(--muted);margin-top:12px}
@media (max-width: 920px){
  .hero-inner{grid-template-columns:1fr}
  .grid-3{grid-template-columns:1fr}
  .features-list{grid-template-columns:1fr}
}