body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #f2f2f2;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
}

.container {
  width: 90%;
  max-width: 400px;
  text-align: center;
}

.form-section input {
  width: 100%;
  padding: 10px;
  margin-top: 10px;
}

button {
  padding: 10px;
  margin-top: 15px;
  width: 100%;
  cursor: pointer;
}

.preview-card {
  background: white;
  padding: 20px;
  margin-top: 20px;
  border-radius: 12px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.1);
  display: none;
}