body {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100vh;
    margin: 0;
    font-family: Arial, sans-serif;
    background-color: #f5f5f5;
  }
  
  .topnav {
    background-color: blueviolet;
    padding: 10px 20px;
    width: 100%;
    display: flex;
    justify-content: flex-start;
    align-items: center;
    margin-bottom: 20px;
  }
  
  .topnav a {
    color: white;
    text-decoration: none;
    transition: color 0.3s ease;
    margin-right: 20px;
  }
  
  .topnav a:first-child {
    margin-right: auto;
  }
  
  .topnav a:hover {
    color: #87CEEB;
  }
  
  .centered-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    background-color: white;
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.1);
    width: 80%;
    max-width: 400px;
    margin-top: 20px;
  }
  
  input {
    background-color: #E5E4E2;
  }

  label, input, button {
    margin-bottom: 15px;
    border: none;
    border-radius: 5px;
    padding: 10px;
    width: 100%;
    box-sizing: border-box;
    font-size: 14px;
  }

  button {
    background-color: #3498db;
    color: white;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.3s ease;
  }
  
  button:hover {
    background-color: #2980b9;
  }