/* ==========================================================================
   Unified mobile navigation drawer
   --------------------------------------------------------------------------
   One consistent mobile menu for EVERY page (landing, our services, our work,
   product catalog, etc.). Everything here is scoped to <=768px, and the drawer
   pieces are display:none above that width, so the DESKTOP VIEW IS UNTOUCHED.
   Markup is created by js/mobile-nav.js.
   ========================================================================== */

/* Hidden by default (desktop): only revealed inside the mobile media query. */
.mnav-toggle,
.mnav-drawer,
.mnav-overlay {
  display: none;
}

@media (max-width: 768px) {
  /* Retire the older per-page mobile menus so the drawer is the single system. */
  #menuToggle,
  #mobileNav,
  .sidebar-toggle,
  .services-sidebar {
    display: none !important;
  }

  /* --- Hamburger button (lives in the header, right-aligned) --------------- */
  .mnav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-left: auto;
    width: 44px;
    height: 44px;
    padding: 0;
    border: 0;
    background: transparent;
    color: #fff;            /* default: dark header (landing, contact) */
    cursor: pointer;
    position: relative;
    z-index: 60;
  }

  /* Service pages have a light header, so the icon must be dark. */
  .our-services-page .mnav-toggle {
    color: #111;
  }

  /* three bars built from one <span> + its pseudo-elements, using currentColor */
  .mnav-toggle span {
    display: block;
    position: relative;
    width: 24px;
    height: 2px;
    background: currentColor;
    border-radius: 2px;
    transition: background 0.2s ease;
  }
  .mnav-toggle span::before,
  .mnav-toggle span::after {
    content: '';
    position: absolute;
    left: 0;
    width: 24px;
    height: 2px;
    background: currentColor;
    border-radius: 2px;
    transition: transform 0.25s ease;
  }
  .mnav-toggle span::before { top: -7px; }
  .mnav-toggle span::after  { top: 7px; }

  /* --- Overlay behind the drawer ------------------------------------------ */
  .mnav-overlay {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    z-index: 1400;
  }
  .mnav-overlay.open {
    opacity: 1;
    visibility: visible;
  }

  /* --- The drawer --------------------------------------------------------- */
  .mnav-drawer {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    width: min(82vw, 320px);
    height: 100dvh;
    background: #000;
    color: #fff;
    padding: 12px 22px 28px;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    z-index: 1500;
  }
  .mnav-drawer.open {
    transform: translateX(0);
    box-shadow: 0 0 40px rgba(0, 0, 0, 0.5);
  }

  .mnav-head {
    display: flex;
    justify-content: flex-end;
  }
  .mnav-close {
    background: transparent;
    border: 0;
    color: #fff;
    font-size: 2rem;
    line-height: 1;
    padding: 0 4px;
    cursor: pointer;
  }

  /* --- Section 1: main site nav ------------------------------------------- */
  .mnav-main {
    display: flex;
    flex-direction: column;
  }
  .mnav-main a {
    color: #fff;
    text-decoration: none;
    font-size: 1rem;
    letter-spacing: 0.5px;
    padding: 13px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

  /* --- Section 2: services detail ----------------------------------------- */
  .mnav-title {
    color: #888;
    font-size: 0.72rem;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    margin: 22px 0 4px;
  }

  .mnav-services {
    display: flex;
    flex-direction: column;
  }
  .mnav-services > a,
  .mnav-group-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    color: #ddd;
    text-decoration: none;
    font-size: 0.95rem;
    letter-spacing: 0.4px;
    padding: 12px 0;
    border: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    background: transparent;
    text-align: left;
    cursor: pointer;
    font-family: inherit;
  }

  .mnav-chevron {
    color: var(--brand-accent, #58c4c0);
    font-size: 0.8rem;
    transition: transform 0.25s ease;
  }
  .mnav-group.open .mnav-chevron {
    transform: rotate(180deg);
  }

  /* collapsible product-supply sub-list */
  .mnav-sub {
    max-height: 0;
    overflow: hidden;
    padding-left: 14px;
    transition: max-height 0.3s ease;
  }
  .mnav-group.open .mnav-sub {
    max-height: 600px;
  }
  .mnav-sub a {
    display: block;
    color: #9a9a9a;
    text-decoration: none;
    font-size: 0.82rem;
    letter-spacing: 0.3px;
    padding: 9px 0;
  }
  .mnav-sub a:active {
    color: var(--brand-accent, #58c4c0);
  }

  /* lock background scroll while the drawer is open */
  body.mnav-open {
    overflow: hidden;
  }

  /* hamburger morphs to an X when the drawer is open */
  .mnav-toggle[aria-expanded="true"] span {
    background: transparent;
  }
  .mnav-toggle[aria-expanded="true"] span::before {
    transform: translateY(7px) rotate(45deg);
  }
  .mnav-toggle[aria-expanded="true"] span::after {
    transform: translateY(-7px) rotate(-45deg);
  }
}