/* ==========================================================================
   PATELMECH ENGINEERING LTD — RESPONSIVE & MOBILE DESIGN SYSTEM
   Breakpoints: 1440px, 1200px, 992px, 768px, 576px, 480px, 360px
   ========================================================================== */

/* --- Extra Large Screens (>= 1440px) --- */
@media (min-width: 1440px) {
  .hero-main-title {
    font-size: 2.9rem;
  }

  .home-two-column-grid {
    gap: 48px;
  }
}

/* --- Large Desktops / Laptops (<= 1200px) --- */
@media (max-width: 1200px) {
  .home-two-column-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .hero-main-title {
    font-size: 2.3rem;
  }

  .sector-card {
    flex: 0 0 calc(50% - 12px);
    min-width: 290px;
  }

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

  .footer-container {
    grid-template-columns: 1.2fr 1fr 1fr;
    gap: 32px;
  }
}

/* --- Medium Screens / Tablets Landscape (<= 992px) --- */
@media (max-width: 992px) {
  :root {
    --header-height: 70px;
    --section-padding-y: 60px;
  }

  .nav-menu {
    display: none;
  }

  .mobile-toggle {
    display: flex;
  }

  .nav-cta-btn {
    display: none !important;
  }

  .nav-actions {
    gap: 0;
  }

  .home-two-column-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .home-left-col {
    max-width: 100%;
    margin: 0;
  }

  .home-right-col {
    max-width: 640px;
    margin: 0 auto;
  }

  /* 4 Pillars: 2x2 Horizontal Grid */
  .hero-pillars-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 14px 16px !important;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .modal-subcards-grid.grid-4,
  .modal-subcards-grid.grid-5 {
    grid-template-columns: repeat(2, 1fr);
  }

  .modal-machines-grid {
    grid-template-columns: repeat(3, 1fr);
  }

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

/* --- Small Tablets & Large Phones (<= 768px) --- */
@media (max-width: 768px) {
  :root {
    --header-height: 64px;
    --section-padding-y: 50px;
  }

  .container,
  .container-wide {
    padding-left: 18px;
    padding-right: 18px;
  }

  /* Clean Navbar Header on Mobile */
  .nav-cta-btn {
    display: none !important;
  }

  .nav-actions {
    gap: 0;
  }

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

  .section-title {
    font-size: 1.75rem;
  }

  .hero-main-title {
    font-size: 2.1rem;
    line-height: 1.18;
  }

  .profile-overview-text {
    font-size: 0.95rem;
    line-height: 1.6;
  }

  /* 4 Pillars: 2x2 Horizontal Grid on Mobile */
  .hero-pillars-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 12px 14px !important;
    padding-top: 18px !important;
  }

  .pillar-item {
    display: flex;
    align-items: center;
    gap: 10px;
  }

  .pillar-icon {
    width: 36px;
    height: 36px;
    flex-shrink: 0;
  }

  .pillar-icon svg {
    width: 18px;
    height: 18px;
  }

  .pillar-name {
    font-size: 0.78rem;
    font-weight: 800;
  }

  .pillar-sub {
    font-size: 0.72rem;
  }

  /* Core Sectors Carousel on Mobile */
  .sector-carousel-track {
    gap: 16px;
    padding: 8px 2px;
    -webkit-overflow-scrolling: touch;
  }

  .sector-card {
    flex: 0 0 calc(85vw - 20px);
    min-width: 260px;
    max-width: 340px;
  }

  .carousel-nav-btn {
    display: none;
  }

  .carousel-pagination-row {
    margin-top: 14px;
  }

  .values-interactive-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .form-row-2 {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .footer-container {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .bottom-bar-inner {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }

  /* Mobile Full-Width Responsive Modals */
  .modal-backdrop {
    padding: 8px;
  }

  .modal-card {
    max-height: 94vh;
    border-radius: var(--radius-md);
  }

  .modal-header {
    padding: 14px 16px;
  }

  .modal-title {
    font-size: 1.15rem;
  }

  .modal-body-scroll {
    padding: 14px 16px;
  }

  .modal-footer {
    padding: 12px 16px;
    flex-direction: column;
    gap: 8px;
  }

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

  .modal-machines-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }

  .modal-disciplines-grid {
    grid-template-columns: 1fr;
  }
}

/* --- Mobile Phones (<= 480px) --- */
@media (max-width: 480px) {
  :root {
    --header-height: 60px;
    --section-padding-y: 44px;
  }

  .container,
  .container-wide {
    padding-left: 14px;
    padding-right: 14px;
  }

  .brand-logo-img {
    height: 32px;
  }

  .nav-cta-btn {
    display: none !important;
  }

  .brand-tag-pill {
    padding: 5px 12px;
    font-size: 0.72rem;
    margin-bottom: 14px;
  }

  .hero-main-title {
    font-size: 1.75rem;
    margin-bottom: 14px;
  }

  .hero-actions-group {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
    margin-bottom: 24px;
  }

  .hero-actions-group .btn {
    width: 100%;
    justify-content: center;
  }

  /* 4 Pillars: 2x2 Horizontal Grid on Small Mobile */
  .hero-pillars-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 10px 10px !important;
    padding-top: 16px !important;
  }

  .pillar-item {
    display: flex;
    align-items: center;
    gap: 8px;
  }

  .pillar-icon {
    width: 32px;
    height: 32px;
    flex-shrink: 0;
  }

  .pillar-icon svg {
    width: 16px;
    height: 16px;
  }

  .pillar-name {
    font-size: 0.74rem;
    font-weight: 800;
  }

  .pillar-sub {
    font-size: 0.68rem;
  }

  .hero-visual-card {
    border-radius: var(--radius-lg);
    padding: 8px;
  }

  .hero-media-overlay-badge {
    bottom: 10px;
    left: 10px;
    font-size: 0.72rem;
    padding: 6px 12px;
  }

  /* Form Elements Font Size 16px prevents iOS Auto-Zoom */
  .form-control,
  select.form-control,
  textarea.form-control {
    font-size: 16px;
    padding: 10px 14px;
  }

  .contact-info-card,
  .quick-inquiry-card {
    padding: 18px 14px;
    border-radius: var(--radius-md);
  }

  .location-map-frame {
    height: 220px;
  }

  .modal-subcards-grid.grid-4,
  .modal-subcards-grid.grid-5,
  .modal-machines-grid {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .manpower-roles {
    font-size: 0.8rem;
  }
}

/* --- Ultra Compact Mobile Phones (<= 360px) --- */
@media (max-width: 360px) {
  .hero-main-title {
    font-size: 1.5rem;
  }

  .section-title {
    font-size: 1.45rem;
  }

  .hero-pillars-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 8px 8px !important;
  }

  .pillar-item {
    gap: 6px;
  }

  .pillar-icon {
    width: 28px;
    height: 28px;
  }

  .pillar-name {
    font-size: 0.7rem;
  }

  .pillar-sub {
    font-size: 0.64rem;
  }

  .sector-card {
    flex: 0 0 92vw;
    min-width: 240px;
  }
}