/* ==========================================================================
   RESPONSIVE BREAKPOINTS & MOBILE ADAPTATION
   ========================================================================== */

/* Large Tablets & Small Laptops (max-width: 1024px) */
@media (max-width: 1024px) {
  .hero-container {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
    text-align: center;
  }

  .hero-content {
    align-items: center;
  }

  .hero-cta-group {
    justify-content: center;
  }

  .hero-metrics {
    justify-content: center;
  }

  .calc-grid {
    grid-template-columns: 1fr;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }
}

/* Tablets (max-width: 768px) */
@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 80px;
    left: 0;
    width: 100%;
    height: calc(100vh - 80px);
    background: var(--bg-glass-heavy);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    flex-direction: column;
    justify-content: center;
    gap: 1.75rem;
    padding: 2rem;
    transform: translateX(100%);
    transition: transform var(--transition-slow);
    border-top: 1px solid var(--border-subtle);
  }

  .nav-menu.open {
    transform: translateX(0);
  }

  .nav-link {
    font-size: 1.25rem;
    font-weight: 600;
  }

  .header-cta {
    display: none;
  }

  .hamburger-btn {
    display: flex;
  }

  .hamburger-btn.open span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }

  .hamburger-btn.open span:nth-child(2) {
    opacity: 0;
  }

  .hamburger-btn.open span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }

  .services-grid,
  .projects-grid,
  .testimonials-grid,
  .stack-categories-grid {
    grid-template-columns: 1fr;
  }

  .projects-grid {
    grid-template-columns: 1fr;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .footer-links-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
}

/* Mobile Screens (max-width: 480px) */
@media (max-width: 480px) {
  .hero-metrics {
    flex-direction: column;
    gap: 1rem;
  }

  .metric-divider {
    width: 60px;
    height: 1px;
  }

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

  .calculator-box {
    padding: 1.25rem;
  }

  .calc-price-display {
    font-size: 2.25rem;
  }

  .modal-container {
    padding: 1.25rem;
  }
}