/* ==========================================================================
   NERVESHOT — Responsive Breakpoints & Mobile Enhancements
   ========================================================================== */

@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .calculator-card {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .process-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .site-header {
    padding: 1rem 0;
  }

  .menu-toggle {
    display: block;
  }

  .main-nav {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: rgba(7, 9, 14, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-light);
    flex-direction: column;
    padding: 2rem;
    gap: 1.5rem;
    transform: translateY(-150%);
    transition: var(--transition-smooth);
    opacity: 0;
    pointer-events: none;
    z-index: 99;
  }

  .main-nav.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-links {
    flex-direction: column;
    align-items: center;
    gap: 1.2rem;
    width: 100%;
  }

  .header-actions {
    display: none;
  }

  .main-nav .header-actions-mobile {
    display: flex;
    flex-direction: column;
    width: 100%;
  }

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

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

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

  .hero-metrics {
    grid-template-columns: 1fr;
    gap: 1.2rem;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

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

  .modal-container {
    height: 94vh;
    padding: 0;
  }

  .device-switcher {
    display: none; /* Mobile screen doesn't need internal device toggles */
  }

  .floating-speed-badge {
    position: static;
    margin-top: 1rem;
    width: fit-content;
  }
}