:root{
  --bg:#0b1220;
  --card:#121c2f;
  --accent:#2ea6ff;
  --text:#eef4ff;
  --muted:#a7b6cf;
  --border:#23324f;
}
*{box-sizing:border-box}
body{
  margin:0;
  font-family:Arial,sans-serif;
  background:linear-gradient(180deg,#08101d,#111b2f);
  color:var(--text);
  line-height:1.6;
}
.container{
  width:min(1100px,92%);
  margin:auto;
}
header{
  padding:90px 0 70px;
}
nav{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:18px 0;
}
.logo{
  font-size:1.2rem;
  font-weight:bold;
}
nav a{
  color:var(--muted);
  text-decoration:none;
  margin-left:18px;
}
.hero{
  display:grid;
  grid-template-columns:1.2fr 1fr;
  gap:40px;
  align-items:center;
}
.hero h1{
  font-size:3rem;
  line-height:1.1;
  margin-bottom:18px;
}
.hero p{
  color:var(--muted);
  font-size:1.1rem;
}
.button{
  display:inline-block;
  margin-top:20px;
  background:var(--accent);
  color:white;
  text-decoration:none;
  padding:14px 22px;
  border-radius:10px;
  font-weight:bold;
}
.panel{
  background:rgba(18,28,47,.9);
  border:1px solid var(--border);
  border-radius:18px;
  padding:30px;
  box-shadow:0 10px 35px rgba(0,0,0,.35);
}
section{
  padding:60px 0;
}
.grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(240px,1fr));
  gap:20px;
}
.card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:16px;
  padding:24px;
}
.card h3{
  margin-top:0;
}
.muted{
  color:var(--muted);
}
footer{
  border-top:1px solid var(--border);
  margin-top:60px;
  padding:30px 0 50px;
  color:var(--muted);
}
a{
  color:var(--accent);
}
@media(max-width:800px){
  .hero{
    grid-template-columns:1fr;
  }
  .hero h1{
    font-size:2.2rem;
  }
}