body {
  margin: 0;
  font-family: 'Poppins', sans-serif;
  background: #f5f7fa;
}

/* Navbar */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: #0a192f;
  color: white;
  padding: 15px 40px;
}

nav a {
  color: white;
  margin-left: 20px;
  text-decoration: none;
}

/* Hero */
.hero {
  text-align: center;
  padding: 60px;
  background: linear-gradient(to right, #007bff, #00c6ff);
  color: white;
}

/* Sections */
section {
  padding: 40px;
  max-width: 900px;
  margin: auto;
}

/* Cards */
.card {
  background: white;
  padding: 15px;
  margin: 10px 0;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

/* Footer */
footer {
  text-align: center;
  padding: 15px;
  background: #0a192f;
  color: white;
}