body {
  background-color: #212121;
  font-family: 'Open Sans', sans-serif;
  color: #fff;
}

.login-container {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

form {
  width: 400px;
  padding: 40px;
  background-color: #424242;
  border-radius: 5px;
  box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
}

h1 {
  margin-bottom: 30px;
  text-align: center;
  font-size: 2rem;
}

.form-group {
  margin-bottom: 20px;
}

label {
  display: block;
  margin-bottom: 5px;
  font-size: 1.2rem;
}

input {
  width: 100%;
  padding: 10px;
  border: none;
  border-radius: 5px;
  background-color: #fff;
  font-size: 1.2rem;
  color: #333;
  transition: background-color 0.3s;
}

input:focus {
  outline: none;
  background-color: #f5f5f5;
}

button[type="submit"] {
  display: block;
  margin: 0 auto;
  width: 50%;
  padding: 10px;
  border: none;
  border-radius: 5px;
  background-color: #fff;
  font-size: 1.2rem;
  color: #212121;
  cursor: pointer;
  transition: background-color 0.3s;
}

button[type="submit"]:hover {
  background-color: #f5f5f5;
}