body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #0b1f4b;
  color: white;
}

header {
  display: flex;
  justify-content: space-between;
  padding: 20px 40px;
  background: #081a3a;
}

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

.hero {
  background: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.8)),
              url('https://images.unsplash.com/photo-1508609349937-5ec4ae374ebf');
  background-size: cover;
  text-align: center;
  padding: 100px 20px;
}

.hero h1 {
  font-size: 40px;
}

.tagline {
  color: #00c3ff;
}

.btn-group button {
  margin: 10px;
  padding: 12px 20px;
  border: none;
  cursor: pointer;
}

.btn-primary {
  background: gold;
}

.btn-secondary {
  background: transparent;
  border: 1px solid white;
  color: white;
}

.countdown {
  text-align: center;
  padding: 40px;
}

.timer {
  display: flex;
  justify-content: center;
  gap: 20px;
}

.timer div {
  background: #122f6b;
  padding: 20px;
  border-radius: 10px;
}

.kategori {
  text-align: center;
  padding: 40px;
}

.cards {
  display: flex;
  justify-content: center;
  gap: 20px;
}

.card {
  padding: 30px;
  border-radius: 15px;
  width: 150px;
}

.blue { background: #1e90ff; }
.green { background: #28a745; }
.orange { background: #ff8c00; }
.red { background: #dc3545; }

.highlights {
  text-align: center;
  padding: 40px;
}

.items {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
}

.items div {
  background: #122f6b;
  padding: 10px;
  border-radius: 10px;
}

.promo {
  text-align: center;
  padding: 30px;
  background: #0a2a66;
}

.testimoni {
  text-align: center;
  padding: 40px;
}

.reviews {
  display: flex;
  justify-content: center;
  gap: 20px;
}

footer {
  text-align: center;
  padding: 20px;
  background: #081a3a;
}