body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
  }
  
  .signin-container {
    max-width: 400px;
    margin: 50px auto;
    background: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    text-align: center;
  }
  
  h1 {
    font-size: 2rem;
    margin-bottom: 20px;
    color: #333;
  }
  
  .signin-form label {
    display: block;
    margin-bottom: 8px;
    font-weight: bold;
  }
  
  .signin-form input {
    width: 100%;
    padding: 10px;
    margin-bottom: 16px;
    border: 1px solid #ccc;
    border-radius: 4px;
  }
  
  .signin-btn {
    padding: 10px 20px;
    background-color: #4CAF50;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1rem;
  }
  
  .signin-btn:hover {
    background-color: #45A049;
  }
  
  p {
    margin-top: 20px;
    color: #666;
  }
  
  a {
    text-decoration: none;
    color: #4CAF50;
  }