/* Reset dan dasar */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  background-color: #f9f9f9;
  color: #333;
}

/* Navbar */
nav {
  background-color: #003366;
  padding: 1rem;
  color: #fff;
}

nav ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
}

nav ul li a {
  color: #fff;
  text-decoration: none;
  font-weight: bold;
}

nav ul li a:hover {
  text-decoration: underline;
}

/* Hero Section */
.hero {
  padding: 80px 20px;
  background: linear-gradient(to right, #003366, #005599);
  color: white;
  text-align: center;
}

.hero h1 {
  font-size: 2.5rem;
  margin-bottom: 10px;
}

.hero p {
  font-size: 1.2rem;
}

/* Grid Card Section */
section {
  padding: 40px 20px;
  text-align: center;
}

section h2 {
  margin-bottom: 30px;
  font-size: 2rem;
  color: #003366;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  max-width: 1200px;
  margin: 0 auto;
}

.card {
  background: #fff;
  border: 1px solid #ddd;
  border-radius: 8px;
  padding: 20px;
  box-shadow: 0 4px 8px rgba(0,0,0,0.05);
  transition: transform 0.3s ease;
}

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

.card h3 {
  color: #005599;
  margin-bottom: 10px;
}

/* Footer */
footer {
  background-color: #003366;
  color: #fff;
  text-align: center;
  padding: 20px;
  margin-top: 40px;
}

/* Responsive Tweaks */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 2rem;
  }

  nav ul {
    flex-direction: column;
    gap: 10px;
  }

  section h2 {
    font-size: 1.5rem;
  }
}