/* ===== RESPONSIVE STYLES ===== */

/* Large Desktop */
@media (max-width: 1280px) {
  .footer-main { grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 36px; }
  .hero-stat-num { font-size: 1.5rem; }
}

/* Desktop */
@media (max-width: 1100px) {
  .category-layout { grid-template-columns: 240px 1fr; gap: 24px; }
  .product-grid-4 { grid-template-columns: repeat(3, 1fr); }
  .blog-featured { grid-template-columns: 1fr; }
  .blog-featured-img { height: 280px; }
  .hero-stats { padding-left: 32px; margin-left: 32px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid .stat-item:nth-child(2) { border-right: none; }
  .stats-grid .stat-item:nth-child(3) { border-top: 1px solid var(--border); }
  .stats-grid .stat-item:nth-child(4) { border-top: 1px solid var(--border); border-right: none; }
}

/* Tablet */
@media (max-width: 900px) {
  .container { padding: 0 20px; }
  .section { padding: 60px 0; }
  .section-lg { padding: 72px 0; }

  /* Header */
  .header-top .header-top-info { gap: 14px; }
  .header-top-info .phone-info { display: none; }
  .site-nav { display: none; }
  .mobile-menu-toggle { display: flex; }
  .header-search { max-width: 320px; }
  .header-action-btn .btn-label { display: none; }

  /* Hero */
  .hero { min-height: 480px; }
  .hero-row { flex-direction: column; gap: 40px; align-items: flex-start; }
  .hero-stats { border-left: none; border-top: 1px solid rgba(255,255,255,0.2); padding-left: 0; margin-left: 0; padding-top: 24px; }
  .hero-stat { padding: 0 20px; }
  .hero-stat:first-child { padding-left: 0; }

  /* Layouts */
  .category-layout { grid-template-columns: 1fr; }
  .filter-sidebar {
    position: fixed;
    top: 0;
    left: -100%;
    bottom: 0;
    width: 290px;
    z-index: 1050;
    border-radius: 0;
    transition: left 0.3s ease;
    overflow-y: auto;
  }
  .filter-sidebar.open { left: 0; }
  .filter-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 1049;
    display: none;
  }
  .filter-overlay.show { display: block; }
  .filter-toggle-btn { display: flex; }

  .two-col { grid-template-columns: 1fr; gap: 32px; }
  .two-col.reverse .two-col-img { order: unset; }
  .sidebar-layout { grid-template-columns: 1fr; }
  .sidebar-layout .sidebar { order: -1; }

  /* Newsletter */
  .newsletter-inner { flex-direction: column; gap: 28px; }
  .newsletter-form { max-width: 100%; width: 100%; }

  /* Footer */
  .footer-main { grid-template-columns: 1fr 1fr; gap: 36px; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-bottom { flex-direction: column; text-align: center; gap: 12px; }

  /* Blog */
  .blog-grid { grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); }
  .blog-featured { grid-template-columns: 1fr; }

  /* Product */
  .product-grid-3 { grid-template-columns: repeat(2, 1fr); }
  .product-grid-4 { grid-template-columns: repeat(2, 1fr); }

  /* Mega menu */
  .mega-menu { min-width: 500px; }
  .mega-menu-grid { grid-template-columns: repeat(2, 1fr); }

  /* Form */
  .form-grid { grid-template-columns: 1fr; }

  /* Stats */
  .stats-grid { grid-template-columns: repeat(2, 1fr); border-radius: var(--radius-lg); }

  /* Policy */
  .policy-meta { flex-direction: column; gap: 10px; }
}

/* Mobile Large */
@media (max-width: 680px) {
  .container { padding: 0 16px; }
  .section { padding: 48px 0; }
  h1 { font-size: 1.7rem; }
  h2 { font-size: 1.35rem; }

  /* Header */
  .header-main { padding: 12px 0; }
  .header-main .container { gap: 14px; }
  .header-search { display: none; }
  .logo-tagline { display: none; }

  /* Hero */
  .hero { min-height: 400px; }
  .hero-content { padding: 60px 0; }
  .hero-actions { flex-direction: column; align-items: flex-start; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .hero-stats { width: 100%; justify-content: space-around; flex-wrap: wrap; gap: 20px; }
  .hero-stat { border-right: none; padding: 0 12px; }

  /* Cat grid */
  .cat-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }

  /* Product grid */
  .product-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
  .product-grid-3 { grid-template-columns: 1fr; }
  .product-grid-4 { grid-template-columns: 1fr; }
  .product-card-img { height: 160px; }

  /* Blog */
  .blog-grid { grid-template-columns: 1fr; }
  .blog-featured { grid-template-columns: 1fr; }
  .blog-featured-body { padding: 24px; }
  .blog-featured-title { font-size: 1.2rem; }

  /* Feature */
  .feature-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .feature-card { padding: 20px 16px; }

  /* Guide */
  .guide-grid { grid-template-columns: 1fr; }

  /* Stats */
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .stat-number { font-size: 2rem; }

  /* Footer */
  .footer-main { grid-template-columns: 1fr; gap: 28px; }
  .footer-brand { grid-column: 1; }

  /* Newsletter */
  .newsletter-form-row { flex-direction: column; }
  .newsletter-input { width: 100%; }

  /* Comparison */
  .comparison-table th, .comparison-table td { padding: 10px 14px; font-size: 0.8rem; }

  /* Breadcrumb */
  .breadcrumb { gap: 4px; }
  .breadcrumb-item { font-size: 0.75rem; }

  /* Tabs */
  .tab-btn { padding: 10px 14px; font-size: 0.82rem; }

  /* Form */
  .form-grid { grid-template-columns: 1fr; }

  /* Page hero */
  .page-hero { padding: 40px 0; }

  /* Grid utilities */
  .grid-2 { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr; }

  /* Header top */
  .header-top { display: none; }
}

/* Mobile Small */
@media (max-width: 400px) {
  .hero-title { font-size: 1.5rem; }
  .cat-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .cat-card { padding: 18px 14px; }
  .product-grid { grid-template-columns: 1fr; }
  .feature-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr; }
  .stats-grid .stat-item { border-right: none; border-bottom: 1px solid var(--border); }
  .cookie-banner { left: 10px; right: 10px; bottom: 10px; }
  .back-to-top { bottom: 16px; right: 16px; }
}

/* Print */
@media print {
  .site-header, .site-nav, .site-footer, .cookie-banner, .back-to-top, .compare-bar { display: none; }
  .breadcrumb-section { display: none; }
  body { font-size: 12pt; color: #000; }
}

/* Focus visible for accessibility */
:focus-visible {
  outline: 2px solid var(--forest-green);
  outline-offset: 2px;
}
button:focus-visible, a:focus-visible { border-radius: var(--radius-xs); }

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
}