* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Franklin Gothic Medium', 'Arial Narrow', Arial, sans-serif;
  }
  
  body {
    width: 100%;
    height: 100vh;
    font-family: Arial, sans-serif;
    background:linear-gradient(45deg,navy,black);
  }
  
  .container {
    max-width: 600px;
    margin: 50px auto;
    padding: 20px;
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    text-align: center;
  }
  
  h1 {
    margin-bottom: 20px;
    font-size: 24px;
  }
  
  form {
    margin-bottom: 30px;
  }
  
  label {
    display: block;
    margin-bottom: 10px;
  }
  
  input {
    width: 100%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
    margin-bottom: 10px;
  }
  
  #errorMessage {
    color: red;
  }
  
  #resultContainer {
    display: none;
    text-align: left;
  }
  
  #resultContainer h2 {
    margin-bottom: 15px;
  }
  
  p {
    margin-bottom: 10px;
  }
  
  @media (max-width: 768px) {
    .container {
      padding: 15px;
      margin: 30px auto;
    }
  
    h1 {
      font-size: 20px;
    }
  
    input {
      padding: 8px;
    }
  }