body {
  font-family: Arial, sans-serif;
  background-color: #f4f4f9;
  margin: 0;
  padding: 0;
}

.form-container {
  width: 50%;
  margin: 50px auto;
  background-color: #fff;
  padding: 20px;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  border-radius: 8px;
}

.form-group {
  margin-bottom: 15px;
}

label {
  font-weight: bold;
  color: #333;
}

input,
textarea {
  width: 100%;
  padding: 10px;
  margin-top: 5px;
  border: 1px solid #ccc;
  border-radius: 4px;
  font-size: 16px;
}

button.submit-btn {
  background-color: #007bff;
  color: white;
  padding: 10px 20px;
  border: none;
  border-radius: 4px;
  font-size: 16px;
  cursor: pointer;
}

button.submit-btn:hover {
  background-color: #45a049;
}

.submitted-message {
  margin-top: 20px;
  background-color: #e7f7e7;
  padding: 15px;
  border-radius: 4px;
  border: 1px solid #d4e4d4;
}

.submitted-message h3 {
  color: #4CAF50;
}