/**
 * NEW HEIGHTS BUILDERS - Responsive Stylesheet
 * Breakpoints:
 * - Mobile Small: 320px - 480px
 * - Tablet: 768px
 * - Laptop / Desktop: 1024px
 * - Wide: 1440px - 1920px
 */

/* ==========================================================================
   Mobile & Tablet Navigation (< 1024px)
   ========================================================================== */
@media (max-width: 1023px) {
  .menu-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .nav-menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--color-offwhite);
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    padding: 2rem 1.5rem;
    gap: 0.5rem;
    overflow-y: auto;
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: transform var(--transition-normal), opacity var(--transition-normal), visibility var(--transition-normal);
    border-top: 1px solid var(--color-concrete-light);
    box-shadow: var(--shadow-lg);
  }

  .nav-menu.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-link {
    font-size: 1.15rem;
    padding: 0.85rem 1rem;
    border-radius: var(--radius-sm);
  }

  .nav-link:hover,
  .nav-link.active {
    background-color: var(--color-offwhite-alt);
  }

  .nav-link.active::after {
    display: none;
  }

  body.nav-locked {
    overflow: hidden;
  }

  .header-actions .header-phone-link {
    display: none;
  }

  /* Split layout stacks on mobile */
  .split-grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  /* Footer stacks */
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }
}

/* ==========================================================================
   Tablets (< 768px)
   ========================================================================== */
@media (max-width: 767px) {
  :root {
    --header-height: 68px;
  }

  .section {
    padding-top: var(--space-2xl);
    padding-bottom: var(--space-2xl);
  }

  .hero {
    padding-top: var(--space-2xl);
    padding-bottom: var(--space-2xl);
  }

  .hero-desc {
    font-size: 1.05rem;
  }

  .trust-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.25rem;
  }

  .google-review-badge {
    width: 100%;
    justify-content: flex-start;
  }

  .services-grid,
  .projects-grid,
  .principles-grid,
  .process-timeline {
    grid-template-columns: 1fr;
  }

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

  .form-group.span-full {
    grid-column: 1;
  }

  .form-shell {
    padding: 1.5rem;
  }

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

  .footer-bottom-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }

  .floating-whatsapp span {
    display: none;
  }

  .floating-whatsapp {
    padding: 0.85rem;
    bottom: 1.25rem;
    right: 1.25rem;
    border-radius: var(--radius-full);
  }
}

/* ==========================================================================
   Small Mobile (< 480px)
   ========================================================================== */
@media (max-width: 479px) {
  .container,
  .container-wide {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .brand-name {
    font-size: 1.05rem;
  }

  .brand-logo-img {
    width: 36px;
    height: 36px;
  }

  .btn {
    width: 100%;
  }

  .btn-group {
    flex-direction: column;
    width: 100%;
  }

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

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

  .project-specs {
    grid-template-columns: 1fr;
  }

  .portfolio-controls {
    justify-content: flex-start;
    overflow-x: auto;
    padding-bottom: 0.5rem;
    flex-wrap: nowrap;
    -webkit-overflow-scrolling: touch;
  }

  .filter-btn {
    flex-shrink: 0;
  }

  .modal-overlay {
    padding: 0.5rem;
  }

  .modal-card {
    max-height: 95vh;
  }

  .modal-body {
    padding: 1rem;
  }

  .review-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.2rem;
  }

  .review-row span {
    text-align: left;
  }

  .modal-footer {
    flex-direction: column;
    align-items: stretch;
  }

  .modal-footer .btn {
    width: 100%;
  }
}

/* ==========================================================================
   Wide Displays (>= 1440px)
   ========================================================================== */
@media (min-width: 1440px) {
  :root {
    --container-max: 1320px;
  }

  .hero-content {
    max-width: 860px;
  }

  .hero-title {
    font-size: 3.75rem;
  }
}