body {
  margin: 0;
  font-family: "Poppins", sans-serif;
  background: radial-gradient(circle at top left, #0b1a36, #0f2855);
  color: #f0f4ff;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 8%;
  background: rgba(0,0,0,0.3);
}

.logo {
  font-weight: bold;
  font-size: 20px;
  color: #4ea8ff;
}

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

.hero {
  text-align: center;
  padding: 100px 10%;
  background: url('https://images.unsplash.com/photo-1525182008055-f88b95ff7980?q=80') center/cover;
}

.hero-content {
  background: rgba(0,0,0,0.6);
  padding: 40px;
  border-radius: 15px;
}

.btn {
  background: #4ea8ff;
  color: white;
  padding: 10px 20px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
}

.page {
  padding: 60px 8%;
}

.card, .product {
  background: rgba(255,255,255,0.1);
  padding: 20px;
  border-radius: 12px;
}

.features, .product-grid {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(auto-fit,minmax(250px,1fr));
}

footer {
  text-align: center;
  padding: 20px;
  background: rgba(0,0,0,0.3);
}

input, textarea {
  width: 100%;
  padding: 12px;
  margin: 10px 0;
  border-radius: 8px;
  border: none;
}

button.btn {
  cursor: pointer;
}

.center {
  text-align: center;
  padding-top: 100px;
}