body {
  background: linear-gradient(135deg, #020024, #090979, #00d4ff);
  font-family: Poppins, Arial;
  color: #fff;
  margin: 0;
}

header {
  text-align: center;
  padding: 40px;
}

.store-section {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.product-card {
  width: 80%;
  max-width: 400px;
  margin: 20px;
  padding: 20px;
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(10px);
  border-radius: 15px;
  box-shadow: 0 0 30px rgba(0,255,255,0.5);
}

.product-card h3 {
  color: #00ffe7;
}

.price {
  font-size: 20px;
  font-weight: bold;
}

input {
  width: 100%;
  padding: 10px;
  margin-top: 10px;
  border-radius: 10px;
  border: none;
}

button {
  margin-top: 15px;
  padding: 12px;
  width: 100%;
  background: linear-gradient(90deg, gold, cyan);
  border: none;
  border-radius: 10px;
  font-weight: bold;
  cursor: pointer;
}

button:hover {
  opacity: 0.9;
}