/* Shared mobile hamburger nav — all fleet archetypes */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid rgba(128, 128, 128, 0.35);
  border-radius: 8px;
  background: transparent;
  cursor: pointer;
  color: inherit;
}
.site-header .nav-toggle { color: #fff; border-color: rgba(255, 255, 255, 0.25); }
.nav-toggle-bar {
  display: block;
  width: 20px;
  height: 2px;
  margin: 0 auto;
  background: currentColor;
  border-radius: 1px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.site-header.is-nav-open .nav-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.site-header.is-nav-open .nav-toggle-bar:nth-child(2) { opacity: 0; }
.site-header.is-nav-open .nav-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 720px) {
  .nav-toggle { display: inline-flex; }
  .header-inner { position: relative; flex-wrap: wrap; }
  .site-header .header-phone { display: none; }
  .site-nav,
  .site-header .nav.site-nav,
  .site-header .nav:not(.site-nav) {
    display: none;
    position: absolute;
    top: calc(100% + 0.5rem);
    right: 0;
    left: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0.75rem 0;
    background: rgba(15, 20, 25, 0.98);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
    max-height: min(75vh, calc(100vh - 5rem));
    overflow-y: auto;
    z-index: 60;
  }
  .site-header.is-nav-open .site-nav,
  .site-header.is-nav-open .nav.site-nav,
  .site-header.is-nav-open .nav {
    display: flex;
  }
  .site-nav > a:not(.btn),
  .site-nav .nav-dropdown-trigger,
  .site-header .nav > a:not(.btn):not([role="menuitem"]) {
    display: block;
    padding: 0.75rem 1.25rem;
    color: rgba(255, 255, 255, 0.92);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  }
  .site-nav .header-cta,
  .site-nav .btn {
    margin: 0.75rem 1.25rem 0.25rem;
    text-align: center;
  }
  body.fleet-nav-open { overflow: hidden; }

  /* Articles + category sub-items (mobile: nested like other nav links) */
  .site-header .site-nav .nav-articles-dropdown,
  .site-header .nav .nav-articles-dropdown {
    display: block;
    width: 100%;
  }
  .site-header .site-nav .nav-articles-dropdown .nav-dropdown-trigger::after,
  .site-header .nav .nav-articles-dropdown .nav-dropdown-trigger::after {
    display: none;
  }
  .site-header .site-nav .nav-articles-subnav,
  .site-header .nav .nav-articles-subnav {
    display: block;
    margin: 0;
    padding: 0;
    background: transparent;
    border: none;
    box-shadow: none;
  }
  .site-header .site-nav .nav-articles-subitem,
  .site-header .nav .nav-articles-subitem {
    display: block;
    padding: 0.62rem 1.25rem 0.62rem 2.25rem;
    color: rgba(255, 255, 255, 0.78);
    text-decoration: none;
    white-space: normal;
    overflow-wrap: anywhere;
    font-weight: 400;
    font-size: 0.94rem;
    line-height: 1.35;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  }
  .site-header .site-nav .nav-articles-subitem:hover,
  .site-header .site-nav .nav-articles-subitem:focus-visible,
  .site-header .nav .nav-articles-subitem:hover,
  .site-header .nav .nav-articles-subitem:focus-visible {
    background: rgba(255, 255, 255, 0.08);
    color: rgba(255, 255, 255, 0.95);
  }
}

@media (min-width: 721px) {
  /* Articles categories: same rectangular row list as mobile drawer */
  .site-header .nav-articles-dropdown {
    position: relative;
  }
  .site-header .nav-articles-subnav,
  .site-header .nav-articles-subnav.nav-articles-subnav--multi,
  .site-header .nav-articles-subnav.nav-articles-subnav--wide {
    display: none;
    position: absolute;
    top: calc(100% + 0.35rem);
    left: 0;
    min-width: 260px;
    max-width: min(340px, 92vw);
    max-height: min(70vh, 520px);
    overflow-x: hidden;
    overflow-y: auto;
    margin: 0;
    padding: 0;
    background: rgba(15, 20, 25, 0.98);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
    column-count: 1;
    column-gap: 0;
    z-index: 200;
  }
  .site-header .nav-dropdown:hover .nav-articles-subnav,
  .site-header .nav-dropdown:focus-within .nav-articles-subnav,
  .site-header .nav-dropdown.is-open .nav-articles-subnav {
    display: block;
  }
  .site-header .nav-articles-subitem {
    display: block;
    padding: 0.65rem 1.15rem;
    color: rgba(255, 255, 255, 0.82);
    text-decoration: none;
    white-space: normal;
    overflow-wrap: anywhere;
    font-weight: 400;
    font-size: 0.94rem;
    line-height: 1.35;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    break-inside: avoid;
  }
  .site-header .nav-articles-subitem:last-child {
    border-bottom: none;
  }
  .site-header .nav-articles-subitem:hover,
  .site-header .nav-articles-subitem:focus-visible {
    background: rgba(255, 255, 255, 0.08);
    color: rgba(255, 255, 255, 0.98);
  }
}