body {
    font-family: 'Segoe UI', sans-serif;
    background: linear-gradient(to right, #141e30, #243b55);
    color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    height: 100vh;
    margin: 0;
  }
  
  .login-box {
    background: rgba(0,0,0,0.7);
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 0 15px rgba(0,0,0,0.5);
    text-align: center;
  }
  
  .login-box input, .login-box button {
    display: block;
    width: 100%;
    padding: 10px;
    margin: 10px 0;
    border-radius: 6px;
    border: none;
  }
  
  .login-box button {
    background-color: #4CAF50;
    color: white;
    font-weight: bold;
    cursor: pointer;
  }
  
  .login-box .error {
    color: #ff6b6b;
  }