/* Responsive Design */
@media (max-width: 768px) {
  .hamburger {
    display: block;
  }

  nav ul {
    display: none;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    padding: 5rem 2rem 2rem;
    z-index: 1000;
    align-items: center;
    justify-content: center;
  }

  nav ul.show {
    display: flex;
  }

  .avatar-container {
    display: block;
  }

  nav ul li {
    margin: 1rem 0;
    margin-left: 0;
  }

  nav ul li a {
    font-size: 1.5rem;
    text-align: center;
  }

  h1 {
    font-size: 2.5rem;
  }

  h2 {
    font-size: 2rem;
  }

  .card {
    width: 100%;
  }

  .contact-container {
    padding: 2rem 1.5rem;
  }

  body {
    cursor: auto;
  }
}