@media (max-width: 1100px) {
  .primary-nav {
    display: none;
  }

  .header-cta {
    display: inline-flex;
  }

  .mobile-menu-button {
    display: grid;
  }

  .mobile-menu-toggle {
    display: block;
    position: absolute;
    opacity: 0;
    pointer-events: none;
  }

  .mobile-nav {
    display: block;
  }
}

@media (max-width: 900px) {
  .hero-grid,
  .split-grid,
  .single-hero-grid,
  .article-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .cards-three,
  .post-grid,
  .contact-cards {
    grid-template-columns: 1fr;
  }

  .article-sidebar {
    position: static;
  }
}

@media (max-width: 640px) {
  .container {
    width: min(100% - 1.25rem, 72rem);
  }

  .section,
  .hero {
    padding: 3.5rem 0;
  }

  .header-inner {
    min-height: 4rem;
  }

  .header-cta {
    display: none;
  }

  .chat-preview {
    justify-self: center;
    width: min(100%, 24rem);
  }

  .button-row,
  .btn {
    width: 100%;
  }

  .visual-grid,
  .check-list.columns,
  .payment-toggle {
    grid-template-columns: 1fr;
  }

  .rotate-pos,
  .rotate-neg {
    transform: none;
  }

  .urdu-card {
    padding: 1.6rem 1rem;
  }

  .urdu-card::after {
    display: none;
  }

  .urdu-points {
    width: 100%;
  }

  .urdu-points span {
    justify-content: center;
    width: 100%;
  }

  .urdu-signature {
    flex-direction: column;
    align-items: stretch;
    text-align: center;
  }

  .promo-sidebar {
    top: auto;
    right: 0.75rem;
    bottom: 4.8rem;
    left: 0.75rem;
    width: auto;
    padding: 0.7rem;
    transform: translateY(0.75rem);
  }

  .promo-sidebar.is-visible {
    transform: translateY(0);
  }

  .promo-sidebar p {
    display: none;
  }

  .promo-sidebar h3 {
    font-size: 1.05rem;
    line-height: 1.65;
  }

  .promo-sidebar .promo-cta {
    margin-top: 0;
    min-height: 2.25rem;
  }

  .hero h1,
  .single-hero h1 {
    font-size: 2.35rem;
  }

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

  .sticky-whatsapp {
    position: fixed;
    z-index: 80;
    right: 1rem;
    bottom: 1rem;
    left: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.55rem;
    border-radius: 999px;
    background: var(--whatsapp);
    color: #fff;
    padding: 0.85rem 1rem;
    font-weight: 850;
    box-shadow: var(--shadow-card);
  }

  .site-footer {
    padding-bottom: 5.5rem;
  }
}