/**
 * Mobile / tablet navigation only (max-width: 991.98px).
 * Desktop header styles in style.css are unchanged.
 */

.mobile-nav-backdrop {
  display: none;
}

@media (max-width: 991.98px) {
  .mobile-nav-backdrop {
    display: block;
    position: fixed;
    inset: 0;
    z-index: 98;
    background: rgba(5, 8, 27, 0.62);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition:
      opacity 0.35s cubic-bezier(0.4, 0, 0.2, 1),
      visibility 0.35s;
    will-change: opacity;
  }

  .main-header.nav-open .mobile-nav-backdrop {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }

  .main-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: #ffffff;
  }

  .main-header .header-toggle {
    z-index: 101;
    transition: transform 0.25s ease, background-color 0.25s ease;
  }

  .main-header.nav-open .header-toggle {
    background-color: #e04a1a !important;
  }

  .main-header.nav-open .header-toggle i::before {
    content: '\f00d';
  }

  .main-header .nav {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    left: auto;
    width: min(340px, 100vw);
    max-width: 100%;
    margin: 0;
    padding: calc(72px + 20px) 22px 32px;
    background: linear-gradient(165deg, #0a0f24 0%, #05081b 48%, #0d1228 100%);
    border-left: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: -16px 0 48px rgba(0, 0, 0, 0.35);
    overflow-x: hidden;
    overflow-y: auto;
    overscroll-behavior: contain;
    -webkit-overflow-scrolling: touch;
    opacity: 1;
    visibility: hidden;
    pointer-events: none;
    transform: translate3d(105%, 0, 0);
    transition: transform 0.42s cubic-bezier(0.4, 0, 0.2, 1), visibility 0.42s;
    will-change: transform;
    z-index: 99;
  }

  .main-header.nav-open .nav {
    visibility: visible;
    pointer-events: auto;
    transform: translate3d(0, 0, 0);
  }

  .main-header .nav ul {
    flex-direction: column;
    gap: 6px;
    padding: 0;
    margin: 0;
  }

  .main-header .nav ul > li {
    width: 100%;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  }

  .main-header .nav ul > li:last-child {
    border-bottom: none;
  }

  .main-header .nav ul li a {
    display: block;
    width: 100%;
    padding: 14px 4px;
    color: #ffffff;
    font-size: 15px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    transition: color 0.2s ease, padding-left 0.2s ease;
  }

  .main-header .nav ul li a:active {
    color: var(--accent-orange, #ff5e2c);
    padding-left: 8px;
  }

  .main-header .nav .has-mega-menu {
    position: static;
    width: 100%;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  }

  .main-header .nav .has-mega-menu .mega-menu-trigger {
    width: 100%;
    justify-content: space-between;
    padding: 14px 4px;
    color: #fff !important;
    font-size: 15px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
  }

  body.nav-open {
    overflow: hidden !important;
  }

  .main-header .services-mega-swiper {
    touch-action: pan-x;
    overscroll-behavior: contain;
  }
}

@media (max-width: 991.98px) and (prefers-reduced-motion: reduce) {
  .main-header .nav,
  .mobile-nav-backdrop {
    transition: none;
  }
}