body {
  font-family: 'Segoe UI', sans-serif;
  margin: 0;
  padding: 0;
  background: linear-gradient(to right, #f0f4f8, #d9e2ec);
}

header {
  background: #0078d7;
  color: white;
  padding: 30px 20px;
  text-align: center;
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

section {
  padding: 20px;
}

h2 {
  color: #333;
  margin-bottom: 10px;
}

.product-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
}

.product-card {
  background: white;
  border-radius: 10px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.1);
  padding: 15px;
  width: 220px;
  position: relative;
  transition: transform 0.2s;
}

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

.product-card input[type="checkbox"] {
  position: absolute;
  top: 10px;
  left: 10px;
  transform: scale(1.2);
}

.product-card label {
  display: block;
  padding-left: 30px;
  cursor: pointer;
}

.product-image {
  width: 100%;
  height: auto;
  border-radius: 6px;
  margin-bottom: 10px;
}

.product-card h3 {
  margin: 0 0 10px;
}

.whatsapp-btn {
  display: inline-block;
  margin-top: 10px;
  padding: 8px 12px;
  background-color: #25D366;
  color: white;
  text-decoration: none;
  border-radius: 5px;
  font-weight: bold;
  transition: background 0.3s;
}

.whatsapp-btn:hover {
  background-color: #1ebe5d;
}

.summary-action {
  text-align: center;
  margin: 20px;
}

.summary-action button {
  padding: 12px 24px;
  font-size: 18px;
  background-color: #0078d7;
  color: white;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}

.order-summary {
  background: #ffffff;
  border-top: 3px solid #0078d7;
  padding: 25px;
  margin: 0 20px 30px;
  border-radius: 10px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

.order-summary ul {
  list-style: none;
  padding: 0;
}

.order-summary li {
  margin-bottom: 8px;
  font-size: 16px;
}

footer {
  text-align: center;
  padding: 10px;
  background: #ddd;
}