body {
  margin: 0;
  padding: 0;
  font-family: Arial, sans-serif;
  background-color: #f2f2f2;
}


header {
  background-color: #333;
  color: #fff;
  padding: 20px;
}

header .heading h1 {
  text-align: center;
  margin: 0;
}


nav {
  background-color: darkblue;
  padding: 10px;
}

nav .logo {
  text-align: center;
}

nav ul {
  list-style-type: none;
  margin: 0;
  padding: 0;
  text-align: center;
}

nav ul li {
  display: inline-block;
  margin: 0 10px;
  margin-right: 80px;
}

nav ul li a {
  text-decoration: none;
  color: white;
  font-weight: bold;
}

nav li a:hover {
  color: lightgreen;
  transition: background-color 0.3s ease;
}


.center-container {
  text-align: center;
  margin: 20px;
}


.content {
  background-color: #f2f2f2;
  padding: 20px;
  text-align: center;
}


.container {
  
  width: 90%;
  max-width: 450px;
  margin: 0 auto;
  padding: 50px;
  border: 2px solid black;
  border-radius: 4px;
  margin-top: 50px;
}

h1 {
  margin-bottom: 50px;
}

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

label {
  display: block;
  text-align: left;
}

input[type="text"],
input[type="password"] {
  width: 100%;
  padding: 10px;
  border: 1px solid black;
  border-radius: 4px;
}

a.forgot {
  display: block;
  text-align: right;
  margin-bottom: 15px;
  color: #555;
  text-decoration: none;
}

a.forgot:hover {
  color: #180bd8;
  transition: background-color 0.3s ease;
}

input[type="submit"] {
  padding: 10px 20px;
  background-color: #4CAF50;
  color: white;
  border: none;
  cursor: pointer;
}

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


@media (max-width: 768px) {
  nav ul li {
    display: block;
    margin: 0;
    margin-bottom: 10px;
  }

  .container {
    margin: 20px auto;
    padding: 30px;
    
  }

  input[type="text"],
  input[type="password"] {
    width: 100%;
  }
}