/* ===== Responsive Design ===== */

/* Tablet: <= 1024px */
@media (max-width: 1024px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .section {
    padding: 60px 0;
  }

  .section-title {
    font-size: 1.75rem;
  }
}

/* Mobile: <= 768px */
@media (max-width: 768px) {
  :root {
    --header-height: 64px;
  }

  /* Show mobile menu toggle */
  .menu-toggle {
    display: flex;
  }

  /* Hide desktop nav */
  .nav {
    display: none;
  }

  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .section {
    padding: 40px 0;
  }

  .section-title {
    font-size: 1.5rem;
  }

  .section-subtitle {
    font-size: 1rem;
    margin-bottom: 32px;
  }

  .page-banner {
    padding: 40px 0 30px;
  }

  .page-banner h1 {
    font-size: 1.6rem;
  }

  .btn-lg {
    padding: 14px 28px;
    font-size: 1rem;
  }

  .container {
    padding: 0 16px;
  }
}

/* Small Mobile: <= 480px */
@media (max-width: 480px) {
  .section-title {
    font-size: 1.3rem;
  }

  .card-img {
    height: 160px;
  }
}