.container {
  max-width: 400px;
  margin: 20px auto;
  padding: 20px;
  background: #f9f9f9;
  border-radius: 5px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

form label {
  font-weight: bold;
}

form input[type="text"],
form input[type="tel"],
form input[type="email"],
form textarea {
  width: 100%;
  padding: 8px;
  margin-bottom: 10px;
  border: 1px solid #ccc;
  border-radius: 4px;
  box-sizing: border-box;
}

form input[type="submit"] {
  background-color: #4caf50;
  color: white;
  padding: 10px 20px;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}

form input[type="submit"]:hover {
  background-color: #45a049;
}

.success-message {
  margin-top: 10px;
  padding: 10px;
  background-color: #d4edda;
  border: 1px solid #c3e6cb;
  border-radius: 4px;
  color: #155724;
}