/* Mobile Devices (max-width: 640px) */
@media (max-width: 640px) {
  .app-header {
    padding: 0.75rem 1rem;
  }

  .header-container {
    gap: 0.5rem;
  }

  .brand-logo span {
    font-size: 1.15rem;
  }

  .main-wrapper {
    padding: 1rem;
  }

  .hero-card {
    flex-direction: column;
    padding: 1.1rem;
    gap: 0.75rem;
  }

  .hero-icon {
    width: 40px;
    height: 40px;
    font-size: 1.1rem;
  }

  .food-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .detail-drawer {
    max-width: 100vw;
  }

  .macro-grid-full {
    grid-template-columns: 1fr;
  }

  .ai-actions-grid {
    grid-template-columns: 1fr;
  }

  .chat-drawer {
    right: 0;
    width: 100vw;
    height: 80vh;
    border-radius: 20px 20px 0 0;
  }
}

/* Tablet Devices (641px - 1024px) */
@media (min-width: 641px) and (max-width: 1024px) {
  .food-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}