* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
  background-color: #f9f9f9;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  background-color: white;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.logo {
  font-size: 1.5rem;
  font-weight: bold;
  color: #333;
}

main {
  max-width: 1200px;
  margin: 2rem auto;
  padding: 0 2rem;
}

.product {
  display: flex;
  flex-direction: column;
  align-items: center;
  background-color: white;
  border-radius: 8px;
  padding: 2rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.product-image {
  width: 100%;
  max-width: 10vw;
  height: auto;
  margin-bottom: 1.5rem;
  border-radius: 4px;
}

.product-title {
  font-size: 1.8rem;
  margin-bottom: 0.5rem;
  color: #333;
}

.product-description {
  color: #666;
  margin-bottom: 1.5rem;
  text-align: center;
  max-width: 600px;
}

.product-price {
  font-size: 1.5rem;
  font-weight: bold;
  margin-bottom: 1.5rem;
  color: #333;
}

.buy-button {
  padding: 0.75rem 2rem;
  font-size: 1rem;
  font-weight: bold;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s ease;
}

/* A/B Test Variants */
.variant-red .buy-button {
  background-color: #ff4d4f;
  color: white;
}

.variant-red .buy-button:hover {
  background-color: #ff1f1f;
}

.variant-green .buy-button {
  background-color: #10b981;
  color: white;
}

.variant-green .buy-button:hover {
  background-color: #059669;
}

footer {
  text-align: center;
  padding: 2rem;
  color: #666;
  font-size: 0.9rem;
}

.debug-info {
  margin-top: 2rem;
  padding: 1rem;
  background-color: #f5f5f5;
  border-radius: 4px;
}

.settings-value {
  font-family: monospace;
  padding: 2px 4px;
  background-color: #f5f5f5;
  border-radius: 3px;
}

.user-email {
  font-size: 0.9rem;
  color: #666;
  font-family: monospace;
}

@media (max-width: 768px) {
  header {
    padding: 1rem;
  }
  
  main {
    padding: 0 1rem;
  }
  
  .product {
    padding: 1.5rem;
  }
  
  .product-title {
    font-size: 1.5rem;
  }
}