/* Responsive Styles & Mobile App Experience */

/* Desktop & Tablet Scales */
@media (max-width: 1100px) {
  .hero-title {
    font-size: 3.5rem;
  }
  .section-title {
    font-size: 2.25rem;
  }
  .trust-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .empty-legs-grid, .routes-grid, .aircraft-grid, .blog-posts-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .how-timeline {
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
  }
  .how-timeline::before {
    display: none;
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Tablet Interface overrides */
@media (max-width: 900px) {
  section {
    padding: 70px 0;
  }
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 50px;
  }
  .hero-text {
    max-width: 100%;
    margin: 0 auto;
  }
  .hero-actions {
    justify-content: center;
  }
  .hero-visual {
    margin-top: 20px;
  }
  .vip-signup-container, .route-info-grid, .about-mission-block {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .route-sidebar-card {
    position: relative;
    top: 0;
    margin-top: 30px;
  }
  .search-grid, .search-grid-secondary {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Mobile Layout Overrides (max-width: 768px) */
@media (max-width: 768px) {
  header.navbar-container {
    height: 72px;
  }
  
  .nav-menu, .nav-cta {
    display: none; /* Hide default navbar components */
  }
  
  .hamburger {
    display: flex; /* Display trigger for side navigation menu overlay */
  }

  /* Mobile Slide-In Navigation Menu */
  .mobile-menu-overlay {
    display: block;
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 320px;
    height: 100vh;
    background: rgba(5, 7, 11, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 999;
    padding: 100px 30px 40px;
    box-shadow: -10px 0 30px rgba(0,0,0,0.5);
    transition: right 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
    border-left: 1px solid rgba(212, 175, 55, 0.15);
  }
  .mobile-menu-overlay.active {
    right: 0;
  }
  
  .mobile-menu-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 24px;
    margin-bottom: 40px;
  }
  
  .mobile-menu-item a {
    font-family: var(--font-serif);
    font-size: 1.4rem;
    font-weight: 600;
    display: block;
    color: var(--color-white);
    padding: 4px 0;
  }
  .mobile-menu-item a:hover, .mobile-menu-item a.active {
    color: var(--color-gold);
  }
  
  .mobile-menu-cta {
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 30px;
  }
  .mobile-menu-cta .btn {
    width: 100%;
    padding: 16px;
  }

  /* Hamburger Active Transition animations */
  .hamburger.active span:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
  }
  .hamburger.active span:nth-child(2) {
    opacity: 0;
  }
  .hamburger.active span:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
  }

  /* Spacing Adjustments */
  section {
    padding: 50px 0;
  }
  
  .hero-section {
    padding-top: 100px;
    padding-bottom: 120px;
  }
  
  .hero-title {
    font-size: 2.6rem; /* 42px - 52px scale */
  }
  .hero-subtitle {
    font-size: 1.05rem;
  }
  .hero-actions {
    flex-direction: column;
    gap: 12px;
  }
  
  .section-title {
    font-size: 1.85rem; /* 30px - 38px scale */
  }
  .section-subtitle {
    font-size: 1rem;
    margin-bottom: 40px;
  }

  /* Grids Stacked */
  .trust-grid, .empty-legs-grid, .routes-grid, .why-grid, .how-timeline, .aircraft-grid, .blog-posts-grid, .airports-grid, .partner-benefits-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  
  .vip-signup-form {
    padding: 30px 20px;
  }
  
  .form-row-2 {
    grid-template-columns: 1fr;
    gap: 0;
  }
  
  .search-grid, .search-grid-secondary {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .search-bar-inner {
    padding: 24px;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
    gap: 10px;
  }

  /* Mobile App Bottom Navigation Bar */
  .mobile-bottom-nav {
    display: flex;
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 60px;
    background: rgba(5, 7, 11, 0.96);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-top: 1px solid rgba(212, 175, 55, 0.15);
    z-index: 998;
    justify-content: space-around;
    align-items: center;
    box-shadow: 0 -5px 20px rgba(0, 0, 0, 0.5);
  }
  
  .mobile-nav-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    color: var(--color-gray);
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    gap: 4px;
  }
  .mobile-nav-btn svg {
    width: 20px;
    height: 20px;
    stroke: currentColor;
    fill: none;
  }
  .mobile-nav-btn.active {
    color: var(--color-gold);
  }

  /* Sticky Bottom Mobile CTA (Floater) */
  .mobile-sticky-cta {
    display: block;
    position: fixed;
    bottom: 72px; /* Floats right above mobile bottom navigation bar */
    left: 5%;
    width: 90%;
    z-index: 997;
    box-shadow: 0 5px 20px rgba(212, 175, 55, 0.3);
    border-radius: 12px;
    overflow: hidden;
    animation: slideUpCTA 0.5s ease forwards;
  }
  .mobile-sticky-cta .btn {
    width: 100%;
    border-radius: 12px;
    padding: 14px 20px;
    font-size: 0.95rem;
    letter-spacing: 1px;
    text-transform: uppercase;
  }

  @keyframes slideUpCTA {
    from { transform: translateY(100px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
  }
}

/* Hide mobile-only assets by default */
.mobile-bottom-nav, .mobile-sticky-cta {
  display: none;
}