body {
  font-family: Arial, sans-serif;
  background: #f1f8e9;
  text-align: center;
  padding: 20px;
}

.container {
  max-width: 500px;
  margin: auto;
  background: white;
  padding: 20px;
  border-radius: 12px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

h1 {
  color: #2e7d32;
}

.subtitle {
  color: #555;
  font-size: 14px;
}

input {
  margin: 10px 0;
}

button {
  background: #2e7d32;
  color: white;
  padding: 12px 20px;
  border: none;
  border-radius: 8px;
  font-size: 16px;
  cursor: pointer;
}

button:hover {
  background: #1b5e20;
}

#preview {
  width: 100%;
  margin-top: 10px;
  border-radius: 8px;
}

.card {
  background: #e8f5e9;
  padding: 10px;
  margin-top: 10px;
  border-radius: 8px;
  text-align: left;
}

.summary {
  margin-top: 10px;
  font-weight: bold;
}