body {
    margin: 0;
    font-family: Arial, sans-serif;
    background-color: #f3f4f6;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    min-height: 100vh;
    padding-top: 10vh;
    padding-left: 1rem;
    padding-right: 1rem;
    box-sizing: border-box;
  }

  .card {
    background: white;
    padding: 2rem;
    box-sizing: border-box;
    border-radius: 1rem;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 400px;
  }

  .card h1 {
    font-size: 1.5rem;
    font-weight: bold;
    text-align: center;
    margin-bottom: 1.5rem;
  }

  .form-group {
    margin-bottom: 1rem;
  }

  label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
  }

  input[type="email"],
  input[type="password"] {
    width: 100%;
    box-sizing: border-box;
    padding: 0.75rem;
    border: 1px solid #d1d5db;
    border-radius: 0.5rem;
    font-size: 1rem;
  }

  .error-message {
    background-color: #fee2e2;
    color: #b91c1c;
    padding: 0.75rem;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    margin-bottom: 1rem;
    display: none;
  }

  .forgot-password {
    display: block;
    margin-top: 0.5rem;
    font-size: 0.875rem;
    color: #2563eb;
    text-decoration: none;
  }

  .forgot-password:hover {
    text-decoration: underline;
  }

  button {
    width: 100%;
    padding: 0.75rem;
    background-color: #2563eb;
    color: white;
    border: none;
    border-radius: 0.5rem;
    font-size: 1rem;
    cursor: pointer;
  }

  button:hover {
    background-color: #1d4ed8;
  }

  @media (min-width: 640px) {
    body {
      padding-top: 15vh;
      padding-left: 0;
      padding-right: 0;
    }
  }