/* Global styles */
body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    color: #fff;
    background-color: #000;
    margin: 0;
    padding: 0;
  }
  
  a {
    color: #00ff00;
    text-decoration: none;
  }
  
  a:hover {
    color: #aaffaa;
  }
  
  header {
    background-color: #222;
    padding: 1rem;
  }
  
  footer {
    background-color: #222;
    padding: 1rem;
    text-align: center;
  }
  
  .banner {
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  
  .banner img {
    max-height: 60px;
  }
  
  nav ul {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
  }
  
  nav li {
    margin-right: 1rem;
  }
  
  /* Control interface styles */
  .controls {
    background-color: #333;
    border: 1px solid #00ff00;
    padding: 1rem;
    border-radius: 10px;
  }
  
  .movement-controls {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    margin-top: 1rem;
  }
  
  .joystick {
    position: relative;
    width: 200px;
    height: 200px;
    background-color: #333;
    border: 1px solid #00ff00;
    border-radius: 50%;
    padding: 1rem;
  }
  
  .joystick button {
    position: absolute;
    width: 50px;
    height: 50px;
    background-color: #00ff00;
    border: none;
    border-radius: 50%;
    font-size: 1.5rem;
    font-weight: bold;
    cursor: pointer;
    transition: background-color 0.3s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
  }
  
  .joystick button.up {
    top: 10%;
    left: 45%;
  }
  
  .joystick button.down {
    bottom: 10%;
    left: 45%;
  }
  
  .joystick button.left {
    top: 45%;
    left: 10%;
  }
  
  .joystick button.right {
    top: 45%;
    right: 10%;
  }
  
  button:hover {
    background-color: #aaffaa;
  }
  
  .sensor-feedback {
    margin-top: 1rem;
  }
  
  /* Login form styles */
  .login-form {
    background-color: #333;
    border: 1px solid #00ff00;
    padding: 1rem;
    border-radius: 10px;
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  
  form div {
    margin-bottom: 1rem;
    width: 100%;
  }
  
  label {
    display: block;
    font-weight: bold;
    margin-bottom: 0.5rem;
  }
  
  input[type="text"],
  input[type="password"] {
    width: 100%;
    padding: 0.5rem;
    border: 1px solid #00ff00;
    border-radius: 5px;
    background-color: #444;
    color: #fff;
  }
  
  button[type="submit"] {
    background-color: #00ff00;
    color: #000;
    padding: 1rem 2rem;
    border: none;
    border-radius: 5px;
    font-weight: bold;
    cursor: pointer;
    transition: background-color 0.3s ease;
    margin-top: 1rem;
  }
  
  button[type="submit"]:hover {
    background-color: #aaffaa;
  }
  
  /* Modal styles */
  .modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 999;
  }
  
  .modal-content {
    background-color: #333;
    border: 1px solid #00ff00;
    padding: 1rem;
    border-radius: 10px;
    text-align: center;
    animation: fadeInUp 0.3s ease;
  }
  
  .modal-content h2 {
    margin-top: 0;
    color: #00ff00;
  }
  
  .modal-content p {
    color: #fff;
  }
  
  .modal-content button {
    background-color: #00ff00;
    color: #000;
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 5px;
    font-weight: bold;
    cursor: pointer;
    transition: background-color 0.3s ease;
    margin-top: 1rem;
  }
  
  .modal-content button:hover {
    background-color: #aaffaa;
  }
  
  @keyframes fadeInUp {
    from {
      transform: translateY(50px);
      opacity: 0;
    }
    to {
      transform: translateY(0);
      opacity: 1;
    }
  }
  
  /* About and Contact page styles */
  .about-content,
  .contact-content {
    background-color: #444;
    border: 1px solid #00ff00;
    padding: 1rem;
    border-radius: 10px;
  }
  
  .about-content h2,
  .contact-content h2 {
    margin-top: 0;
    color: #00ff00;
  }
  
  .about-content p,
  .contact-content p {
    color: #fff;
  }
  
  .about-content ol {
    color: #fff;
  }
  
  .social-media a {
    margin-right: 1rem;
    color: #00ff00;
    font-size: 1.5rem;
    transition: color 0.3s ease;
  }
  
  .social-media a:hover {
    color: #aaffaa;
  }
  
  /* Media Queries */
  @media (max-width: 768px) {
    .movement-controls {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      justify-content: center;
      gap: 1rem;
    }
  }