/* ==============================================
   lbhongdafood.com - Responsive Styles
   Mobile-first approach with rich interactions
   ============================================== */

/* Tablet - 768px */
@media (max-width: 1024px) {
  :root {
    --header-height: 64px;
  }
}

/* Mobile - 480px */
@media (max-width: 768px) {
  h1 { font-size: clamp(2rem, 8vw, 3rem); }
  h2 { font-size: clamp(1.75rem, 6vw, 2.5rem); }
  h3 { font-size: clamp(1.25rem, 4vw, 1.75rem); }

  .section {
    padding: var(--space-7) 0;
  }

  .section-title {
    margin-bottom: var(--space-6);
  }

  .container {
    padding: 0 var(--space-4);
  }

  .hero-section {
    min-height: 100svh;
  }

  .hero-stat-value {
    font-size: 1.5rem;
  }

  .hero-stat-label {
    font-size: 0.7rem;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-5);
  }

  .footer-bottom {
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero-cta {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-cta .btn {
    width: 100%;
  }

  .hero-stats {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3);
  }

  .card {
    padding: var(--space-4);
  }

  .service-card {
    padding: var(--space-5) var(--space-4) var(--space-4);
  }

  .modal {
    padding: var(--space-4);
  }
}

/* Large screens - 1440px+ */
@media (min-width: 1440px) {
  :root {
    --max-width: 1400px;
  }
}

/* 4K - 1920px+ */
@media (min-width: 1920px) {
  :root {
    --max-width: 1600px;
  }
}

/* Print styles */
@media print {
  .site-header,
  .site-footer,
  .menu-toggle,
  .mobile-nav,
  .hero-bg,
  .hero-orb,
  .hero-particles {
    display: none;
  }

  body {
    background: white;
    color: black;
  }
}

/* High contrast */
@media (prefers-contrast: more) {
  :root {
    --color-text-muted: #b8c2d0;
    --color-border: rgba(0, 212, 255, 0.4);
  }
}