/* Responsive Design */
@media (max-width: 768px) {
  nav .container {
    flex-direction: column;
    gap: 1rem;
  }

  nav ul {
    display: none;
    flex-direction: column;
    gap: 1rem;
    width: 100%;
  }

  nav ul.active {
    display: flex;
  }

  .hamburger {
    display: flex;
  }

  .nav-buttons {
    width: 100%;
    flex-direction: column;
  }

  .nav-buttons a {
    width: 100%;
    text-align: center;
  }

  .hero h1 {
    font-size: 2.5rem;
  }

  .hero p {
    font-size: 1.1rem;
  }

  .hero .cta-buttons {
    flex-direction: column;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }

  .intro-grid {
    grid-template-columns: 1fr;
  }

  .intro-image {
    height: 250px;
  }

  footer .container {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 1rem;
  }

  h1 {
    font-size: 1.8rem;
  }

  h2 {
    font-size: 1.5rem;
  }

  nav {
    padding: 1rem;
  }

  nav .logo {
    font-size: 1.2rem;
  }

  .hero {
    padding: 3rem 1rem;
  }

  .hero h1 {
    font-size: 1.8rem;
  }

  .hero p {
    font-size: 1rem;
  }

  .cards-grid {
    grid-template-columns: 1fr;
  }

  .card {
    padding: 1.5rem;
  }

  .intro-image {
    height: 200px;
    font-size: 1rem;
  }
}

@media (max-width: 768px) {
  .sidebar {
    width: 200px;
  }

  .hamburger {
    display: flex;
  }

  nav ul {
    display: none;
  }
}

@media (max-width: 480px) {
  .sidebar {
    width: 100%;
    left: -100%;
  }
}