:root{
  --bg:#0b0f17; --panel:#0f1623; --text:#eaf0ff; --muted:#a5b1d6;
  --brand:#6ad5ff; --accent:#9d7dff; --ok:#2dd4bf; --ring:#1f2a44;
  --card: rgba(255,255,255,0.06); --glass: blur(8px);
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0; font-family: system-ui,-apple-system,Segoe UI,Roboto,Ubuntu;
  background: radial-gradient(1200px 600px at 10% -10%, #13203a 0%, var(--bg) 40%) fixed, var(--bg);
  color:var(--text);
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none}
a:focus{outline:2px solid var(--brand); outline-offset:2px}
.skip-link{position:absolute;left:-9999px;top:auto}
.skip-link:focus{left:16px;top:12px;background:#000;color:#fff;padding:8px 12px;border-radius:8px}

.container{width:min(1200px,92%); margin:0 auto}
.site-header{
  position:sticky; top:0; z-index:50; backdrop-filter:var(--glass);
  background: linear-gradient(180deg, rgba(15,22,35,0.9), rgba(15,22,35,0.6));
  border-bottom:1px solid #1d2a45;
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;padding:14px 0}
.logo{display:flex;gap:10px;align-items:center;color:#fff;font-weight:700}
.logo img{width:28px;height:28px}

.nav{display:flex;gap:20px}
.nav a{padding:8px 10px;border-radius:10px;color:#cfe3ff}
.nav a:hover{background:rgba(255,255,255,0.06)}
.nav-toggle{display:none;background:none;border:1px solid #243251;color:#cfe3ff;padding:6px 10px;border-radius:10px}

.hero{
  position:relative; overflow:hidden; padding:96px 0 72px 0;
  background: radial-gradient(800px 400px at 80% -10%, #1a2a4a 0%, transparent 60%);
  border-bottom:1px solid #1d2a45;
}
.grid-bg{
  position:absolute; inset:0; background:
    linear-gradient(to right, rgba(106,213,255,0.12) 1px, transparent 1px) 0 0 / 40px 40px,
    linear-gradient(to bottom, rgba(157,125,255,0.12) 1px, transparent 1px) 0 0 / 40px 40px;
  mask-image: radial-gradient(50% 60% at 50% 40%, black 40%, transparent 80%);
  animation: float 12s ease-in-out infinite;
}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(8px)}}

.hero-inner{position:relative}
.hero h1{font-size:clamp(28px,5vw,48px);margin:0 0 12px}
.hero p{max-width:800px; color:var(--muted); line-height:1.7}
.hero .hero-cta{margin-top:20px; display:flex; gap:12px; flex-wrap:wrap}

.btn{display:inline-flex;align-items:center;gap:8px;padding:10px 14px;border-radius:12px;border:1px solid #29406f;transition:.2s}
.btn-primary{background:linear-gradient(135deg, var(--brand), var(--accent)); color:#071321; font-weight:700; border:none}
.btn-ghost{background:transparent;color:#cfe3ff}
.btn-link{padding:0;border:none;color:var(--ok)}

.section{padding:64px 0}
.section h2{font-size:clamp(22px,3.6vw,32px); margin:0 0 20px}
.cards{display:grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap:16px}
.card{
  background: linear-gradient(180deg, rgba(255,255,255,0.06), rgba(255,255,255,0.02));
  border:1px solid #1f2a44; border-radius:16px; padding:18px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.25);
}
.card h3{margin:0 0 8px}
.card p{color:var(--muted); line-height:1.75}

.security-list{display:grid; gap:8px; padding-left:18px}
.security-list li{margin-left:12px}

.site-footer{border-top:1px solid #1d2a45;background: #0d1423}
.footer-inner{display:grid;grid-template-columns:1.2fr 1fr; gap:20px; padding:28px 0}
.links{list-style:none;margin:0;padding:0}
.links li{margin:6px 0}
.copy{grid-column:1/-1; color:#98a6cc; font-size:14px; border-top:1px solid #1f2a44; padding-top:14px; margin-top:2px}

@media (max-width: 900px){
  .cards{grid-template-columns:1fr}
  .nav{display:none;flex-direction:column;gap:8px;padding:10px 0}
  .nav.open{display:flex}
  .nav-toggle{display:inline-block}
  .footer-inner{grid-template-columns:1fr}
}