body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #f8f9fa;
  color: #222;
}

/* Navbar */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: #0d47a1;
  color: #fff;
  padding: 15px 30px;
}
.navbar a {
  color: white;
  margin: 0 10px;
  text-decoration: none;
}
.navbar a:hover {
  text-decoration: underline;
}

/* Hero */
.hero {
  text-align: center;
  padding: 60px 20px;
  background: linear-gradient(120deg, #1976d2, #42a5f5);
  color: white;
}

/* Cards */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 20px;
  padding: 40px;
}
.card {
  background: white;
  border-radius: 12px;
  padding: 20px;
  text-align: center;
  font-size: 18px;
  box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}