body {
  margin:0;
  font-family:'Poppins',sans-serif;
  background:#0b1c2c;
  color:#fff;
}

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

header {
  position:sticky;
  top:0;
  background:#0b1c2c;
  padding:15px 0;
  z-index:1000;
}

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

nav a {
  margin:0 10px;
  color:#ccc;
  text-decoration:none;
}

.logo {
  font-weight:700;
  color:#2e8bc0;
}

.hero {
  text-align:center;
  padding:100px 20px;
}

.hero h1 {
  font-size:42px;
}

.hero h2 {
  color:#ccc;
}

form input {
  display:block;
  width:100%;
  max-width:400px;
  margin:10px auto;
  padding:12px;
  border-radius:6px;
  border:none;
}

.section {
  padding:60px 0;
}

.grid {
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(250px,1fr));
  gap:20px;
}

.card {
  background:#132f4c;
  padding:20px;
  border-radius:10px;
  text-align:center;
  transition:0.3s;
}

.card:hover {
  transform:translateY(-5px);
}

.dark {
  background:#081521;
}

.list {
  list-style:none;
  padding:0;
}

.list li {
  margin:10px 0;
}

.cta-section {
  background:#2e8bc0;
  text-align:center;
  padding:60px 20px;
}

.cta-btn {
  background:#2e8bc0;
  border:none;
  padding:12px 20px;
  color:white;
  border-radius:6px;
  cursor:pointer;
}

.cta-btn.big {
  margin-top:15px;
}

footer {
  text-align:center;
  padding:20px;
  color:#aaa;
}

@media(max-width:600px){
  .hero h1 {
    font-size:28px;
  }
}