:root{
  --bg-dark:#0b1c2d;
  --bg-light:#0e2236;
  --primary:#ff6a00;
  --text:#ffffff;
  --muted:#b7c4d6;
}

*{
  margin:0;
  padding:0;
  box-sizing:border-box;
  font-family:'Inter', sans-serif;
}

body{
  background:var(--bg-dark);
  color:var(--text);
  line-height:1.6;
}

.container{
  width:90%;
  max-width:1200px;
  margin:auto;
}

section{
  padding:100px 0;
}

h1{
  font-size:48px;
  font-weight:700;
  line-height:1.2;
}

h2{
  font-size:36px;
  margin-bottom:20px;
}

.orange{ color:var(--primary); }

p{
  color:var(--muted);
  margin-top:20px;
  font-size:18px;
}

.btn{
  display:inline-block;
  margin-top:40px;
  background:var(--primary);
  color:#fff;
  padding:14px 28px;
  border-radius:6px;
  text-decoration:none;
  font-weight:600;
  transition:0.3s;
}

.btn:hover{ opacity:0.85; }

.grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(250px,1fr));
  gap:30px;
  margin-top:50px;
}

.card{
  background:var(--bg-light);
  padding:30px;
  border-radius:10px;
  border:1px solid rgba(255,255,255,0.05);
  transition:0.3s;
}

.card:hover{
  border:1px solid var(--primary);
  transform:translateY(-5px);
}

.center{text-align:center;}

nav{
  position:fixed;
  top:0;
  width:100%;
  background:#081521;
  padding:20px 0;
  z-index:1000;
}

nav .container{
  display:flex;
  justify-content:space-between;
  align-items:center;
}

nav a{
  color:#fff;
  text-decoration:none;
  margin-left:25px;
  font-weight:500;
}

nav a:hover{ color:var(--primary); }

.logo{
  font-size:22px;
  font-weight:700;
  color:var(--primary);
}

.spacer{ height:90px; }

footer{
  padding:60px 0;
  text-align:center;
  background:#081521;
  font-size:14px;
  color:#7c8fa3;
}

@media(max-width:768px){
  h1{font-size:32px;}
  h2{font-size:26px;}
  nav .container{
    flex-direction:column;
  }
}