body {
  font-family: Arial, sans-serif;
  background-color: #f2f2f2;
}
form {
  width: 400px;
  margin: 0 auto;
  background-color: #fff;
  padding: 20px;
  border-radius: 5px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
}

h2 {
  text-align: center;
  margin-top: 50px;
  margin-bottom: 30px;
}

label {
  display: block;
  margin-bottom: 10px;
  font-weight: bold;
}

input[type="tel"],
input[type="password"] {
  width: 100%;
  padding: 10px;
  margin-bottom: 20px;
  border: none;
  border-radius: 3px;
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.1);
}

input[type="submit"] {
  background-color: #4caf50;
  color: #fff;
  padding: 10px 20px;
  border: none;
  border-radius: 3px;
  cursor: pointer;
  transition: background-color 0.3s;
}

input[type="submit"]:hover {
  background-color: #3e8e41;
}