:root{--bg:#071426;--card:#0c223d;--accent:#00c8ff;--accent2:#0080c0;--text:#eaf6ff;}
*{box-sizing:border-box}
body{margin:0;font-family:Arial,Helvetica,sans-serif;background:linear-gradient(180deg,#050e19, #071426 40%, #050e19);color:var(--text)}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:1050px;margin:0 auto;padding:20px}
.header{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;padding:16px 0}
.brand{display:flex;align-items:center;gap:12px}
.brand img{width:56px;height:56px;border-radius:14px;border:2px solid var(--accent)}
.brand h1{margin:0;font-size:28px;letter-spacing:.5px}
.nav{display:flex;gap:10px;flex-wrap:wrap}
.nav a{background:#0b1b2f;border:1px solid #163a5f;padding:10px 12px;border-radius:10px;font-weight:bold}
.nav a:hover{background:#0f2a48}
.hero{background:radial-gradient(circle at 20% 20%, rgba(0,200,255,.25), transparent 40%),
      radial-gradient(circle at 80% 30%, rgba(0,128,192,.25), transparent 45%),
      linear-gradient(180deg, rgba(12,34,61,.9), rgba(7,20,38,.9));
border:1px solid #18406b;border-radius:18px;padding:22px;display:grid;grid-template-columns:1.2fr .8fr;gap:18px;align-items:center}
.hero h2{margin:0 0 10px 0;font-size:30px}
.hero p{margin:0 0 12px 0;line-height:1.5;color:#cfeaff}
.hero .cta{display:flex;flex-wrap:wrap;gap:10px;margin-top:10px}
.btn{display:inline-block;background:var(--accent);color:#00101a;padding:11px 14px;border-radius:12px;font-weight:bold;border:0}
.btn.secondary{background:transparent;color:var(--text);border:1px solid #2d6aa0}
.btn:hover{filter:brightness(1.05);text-decoration:none}
.hero img{width:100%;border-radius:14px;border:1px solid #18406b}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:16px}
.card{background:rgba(12,34,61,.85);border:1px solid #18406b;border-radius:16px;padding:14px}
.card img{width:100%;border-radius:12px;border:1px solid #18406b}
.card h3{margin:10px 0 6px 0}
.card p{margin:0 0 10px 0;color:#cfeaff;line-height:1.45}
.footer{margin-top:24px;padding:14px 0;color:#99c7e6;font-size:13px;border-top:1px solid #143456}
@media (max-width:900px){.hero{grid-template-columns:1fr}.grid{grid-template-columns:1fr}}