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

@media (max-width: 600px) {
  /* ── Bottom bar ── */
  .mobile-nav {
    display: flex;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: #2a2a2a;
    border-top: 2px solid #444;
    height: 56px;
    padding-bottom: env(safe-area-inset-bottom);
  }

  /* Covers the gap when Chrome's address bar collapses */
  .mobile-nav::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    height: 200px;
    background: #2a2a2a;
  }

  .mobile-nav__item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    color: #999;
    font-size: 0.65rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    font-weight: 700;
    transition: color 0.15s;
    -webkit-tap-highlight-color: transparent;
  }

  .mobile-nav__item--active { color: #0B9DBB; }
  .mobile-nav__item:active  { color: #fff; }

  /* Reset button defaults so it matches the link tabs */
  .mobile-nav__more-btn {
    background: none;
    border: none;
    font-family: inherit;
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0;
    -webkit-appearance: none;
    appearance: none;
  }

  /* ── More drawer ──
     Anchored to bottom:0 so translateY(100%) hides it fully
     below the viewport. Nav bar (z-index:100) sits on top.
     padding-bottom keeps the last item clear of the nav bar. */
  .mobile-more-backdrop {
    display: block;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 98;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s;
  }

  .mobile-more-backdrop.open {
    opacity: 1;
    pointer-events: all;
  }

  .mobile-more-menu {
    display: flex;
    flex-direction: column;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 99;
    background: #2a2a2a;
    border-top: 2px solid #444;
    padding-bottom: calc(56px + env(safe-area-inset-bottom));
    transform: translateY(100%);
    transition: transform 0.22s ease;
  }

  .mobile-more-menu.open {
    transform: translateY(0);
  }

  .mobile-more-menu__item {
    padding: 0.9rem 1.25rem;
    color: #bbb;
    text-decoration: none;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    border-bottom: 1px solid #383838;
    transition: color 0.15s, background 0.15s;
    -webkit-tap-highlight-color: transparent;
  }

  .mobile-more-menu__item:last-child {
    border-bottom: none;
  }

  .mobile-more-menu__item--active {
    color: #0B9DBB;
  }

  .mobile-more-menu__item:active {
    color: #fff;
    background: #333;
  }

  /* Push page content above the fixed bar */
  .container--outer {
    padding-bottom: calc(56px + env(safe-area-inset-bottom));
  }

  /* Hide desktop horizontal menu */
  .menu { display: none !important; }
}