body {
  font-family: 'Montserrat', sans-serif;
  margin: 0;
  padding: 0;
  background: #fdfdfd;
  color: #333;
}
header {
  background: linear-gradient(135deg, #3a7d44, #2f6336);
  color: white;
  padding: 40px;
  text-align: center;
}
header h1 {
  margin: 0;
  font-size: 2.5rem;
}
header p {
  margin: 10px 0 0;
  font-size: 1.2rem;
}
.container {
  max-width: 1000px;
  margin: 40px auto;
  padding: 20px;
}
.hero {
  display: flex;
  gap: 40px;
  align-items: center;
  background: white;
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}
.hero img {
  width: 350px;
  border-radius: 12px;
}
.details h2 {
  font-size: 2rem;
  color: #3a7d44;
  margin-top: 0;
}
.price {
  font-size: 1.5rem;
  color: #222;
  margin: 10px 0;
}
#payment-request-button {
  margin-top: 20px;
  max-width: 300px;
}
.features, .reviews {
  margin-top: 60px;
  text-align: center;
}
.features h3, .reviews h3 {
  font-size: 1.8rem;
  color: #3a7d44;
}
.features ul {
  list-style: none;
  padding: 0;
  margin-top: 20px;
}
.features li {
  font-size: 1.1rem;
  margin: 10px 0;
}
.reviews .review {
  background: #f9f9f9;
  padding: 20px;
  margin: 20px auto;
  max-width: 700px;
  border-left: 5px solid #3a7d44;
  font-style: italic;
}
footer {
  text-align: center;
  padding: 20px;
  background: #333;
  color: white;
  margin-top: 60px;
}