* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: #fdf5e6;
  color: #333;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: 100vh;
  padding: 4rem;
}

header {
  text-align: center;
  margin-bottom: 3rem;
}

h1 {
  font-size: 4rem;
  color: #8b4513;
  margin-bottom: 0.5rem;
}

#product {
  background: white;
  padding: 3rem;
  border-radius: 16px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.1);
  text-align: center;
  width: 300px;
}

.price {
  font-size: 2rem;
  font-weight: bold;
  margin: 1.5rem 0;
}

#buy-btn {
  background: #d32f2f;
  color: white;
  border: none;
  padding: 1rem 2rem;
  font-size: 1.2rem;
  border-radius: 50px;
  cursor: pointer;
  transition: transform 0.2s;
}

#buy-btn:hover {
  transform: scale(1.05);
  background: #c62828;
}