/* Container and layout */
  #container {
    max-width: 600px;
    margin: 100px auto;
    padding: 20px;
  }
  header {
    align-items: center;
    justify-content: center;
  }
  h1 {
    font-weight: 800;
    font-size: 36px;
    color: #111827;
    margin-bottom: 20px;
  }
  h2 {
    font-weight: 700;
    font-size: 24px;
    color: #111827;
    margin-bottom: 16px;
  }
  form {
    background: #fefefe;
    border-radius: 12px;
    box-shadow: 0 6px 12px -4px rgba(0,0,0,0.1);
    padding: 24px;
    margin-bottom: 40px;
  }
  label {
    display: block;
    color: #4b5563;
    font-weight: 500;
    margin-bottom: 8px;
  }
  input[type="text"], input[type="password"] {
    width: 100%;
    padding: 10px;
    border: 1.5px solid #d1d5db;
    border-radius: 8px;
    font-size: 16px;
    color: #111827;
    margin-bottom: 16px;
    transition: border-color 0.3s ease;
  }
  input[type="text"]:focus, input[type="password"]:focus {
    outline: none;
    border-color: #2563eb;
  }
  button {
    width: 100%;
    border-radius: 12px;
  }
  /*button {
    width: 100%;
    background-color: #0275d8;
    border: none;
    color: white;
    padding: 12px;
    font-weight: 700;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.3s ease;
  }
  button:hover {
    background-color: #025aa5;
  }*/
  #error {
    color: #d9534f;
    margin-bottom: 16px;
    font-weight: 600;
  }
  @media (max-width: 480px) {
    form {
      padding: 16px;
    }
    button {
      padding: 10px;
      font-size: 14px;
    }
    input[type="text"], input[type="password"] {
      font-size: 14px;
    }
    h1 {
      font-size: 30px;
    }
    h2 {
      font-size: 20px;
    }
  }