body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #05070d;
  color: #e6f1ff;
}

nav {
  padding: 20px;
  text-align: center;
  background: #02040a;
}

nav a {
  margin: 0 15px;
  color: #7fffd4;
  text-decoration: none;
  font-weight: bold;
}

.hero {
  padding: 100px 20px;
  text-align: center;
  background: radial-gradient(circle at top, #0b132b, #000);
}

.hero-logo {
  max-width: 420px;
  margin-bottom: 30px;
  filter: drop-shadow(0 0 25px rgba(0,255,180,0.35));
}

section {
  max-width: 900px;
  margin: 80px auto;
  padding: 0 20px;
}

h1, h2 {
  color: #6fffe9;
}