/* Mobile bottom navigation bar */
@media (max-width: 991.98px) {
  body {
    padding-bottom: 84px; /* match taller mobile nav (height + buffer) */
  }

  .mobile-bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 72px; /* was 60px */
    background: rgba(10, 10, 10, 0.45);
    backdrop-filter: saturate(180%) blur(12px);
    -webkit-backdrop-filter: saturate(180%) blur(12px);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    display: flex;
    justify-content: space-around;
    align-items: stretch;
    z-index: 1000; /* same as top navbar, below Bootstrap modals */
    color: #ffffff; /* default text/icon color */
  }

  .mobile-bottom-nav .mobile-nav-item {
    flex: 1;
    color: rgba(255, 255, 255, 0.85);
    text-decoration: none;
    font-size: 12px; /* slightly larger text */
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px; /* more breathing room */
  }

  .mobile-bottom-nav .mobile-nav-item i {
    font-size: 22px; /* subtle bump */
    height: 26px;
    line-height: 26px;
  }

  /* Home logo image */
  .mobile-bottom-nav .mobile-home-logo {
    width: 26px;
    height: 26px;
    object-fit: contain;
  }

  /* Ensure all anchors inside nav inherit color and no underline */
  .mobile-bottom-nav a {
    color: inherit !important;
    text-decoration: none !important;
  }

  /* Theme toggle sizing matches other items */
  .mobile-bottom-nav .theme-toggle i {
    font-size: 20px;
    line-height: 1;
  }
  .mobile-bottom-nav .mobile-nav-item span,
  .mobile-bottom-nav .theme-toggle span {
    font-size: 12px;
  }

  .mobile-bottom-nav .mobile-nav-item:not(.theme-toggle):hover,
  .mobile-bottom-nav .mobile-nav-item:not(.theme-toggle).active {
    color: #ffffff;
  }
  /* Force icon and text to pick up active color */
  .mobile-bottom-nav .mobile-nav-item:not(.theme-toggle).active i,
  .mobile-bottom-nav .mobile-nav-item:not(.theme-toggle).active span {
    color: #55bcc9 !important;
  }
  /* Tint the home logo to cyan when active */
  .mobile-bottom-nav .mobile-nav-item.home.active .mobile-home-logo {
    filter: invert(57%) sepia(30%) saturate(707%) hue-rotate(143deg)
      brightness(93%) contrast(87%);
  }

  /* Profile picture in mobile nav */
  .mobile-bottom-nav .mobile-pfp {
    width: 26px;
    height: 26px;
    border-radius: 50%;
    object-fit: cover;
  }

  /* Auth group shows two compact stacked links */
  .mobile-bottom-nav .auth-group {
    gap: 0;
  }
  .mobile-bottom-nav .auth-group .auth-link + .auth-link {
    margin-top: -4px; /* tighten */
  }
  .mobile-bottom-nav .auth-link {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: inherit;
    text-decoration: none;
  }

  /* Theme toggle button reset */
  .mobile-bottom-nav .theme-toggle {
    border: none;
    background: transparent;
    font: inherit;
    padding: 0;
    cursor: pointer;
    color: inherit;
  }

  /* Profile trigger uses same layout as link */
  .mobile-bottom-nav .profile-trigger {
    border: 0;
    background: transparent;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: inherit;
  }

  /* Make dropdown menu centered above (dropup) */
  .mobile-bottom-nav .dropdown-menu-center {
    left: 50% !important;
    transform: translateX(-50%) !important;
  }

  /* Hide the top navbar entirely on mobile */
  nav.navbar {
    display: none !important;
  }
}

/* Dark mode styles */
@media (max-width: 991.98px) {
  body.dark-mode .mobile-bottom-nav {
    background: rgba(10, 10, 10, 0.45);
    backdrop-filter: saturate(180%) blur(12px);
    -webkit-backdrop-filter: saturate(180%) blur(12px);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
  }
  body.dark-mode .mobile-bottom-nav .mobile-nav-item {
    color: rgba(255, 255, 255, 0.85);
  }
  body.dark-mode .mobile-bottom-nav .mobile-nav-item:not(.theme-toggle):hover,
  body.dark-mode .mobile-bottom-nav .mobile-nav-item:not(.theme-toggle).active {
    color: #55bcc9;
  }
  body.dark-mode .mobile-bottom-nav .dropdown-menu {
    background: #0f0f0f;
    color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.1);
  }
  body.dark-mode .mobile-bottom-nav .dropdown-item {
    color: #ffffff;
  }
  body.dark-mode .mobile-bottom-nav .dropdown-item:hover {
    background: #55bcc9;
    color: #ffffff;
  }

  /* Ensure theme toggle never gets cyan on hover/active */
  .mobile-bottom-nav .theme-toggle:hover,
  .mobile-bottom-nav .theme-toggle:active,
  .mobile-bottom-nav .theme-toggle.active,
  .mobile-bottom-nav .theme-toggle:hover i,
  .mobile-bottom-nav .theme-toggle:active i,
  .mobile-bottom-nav .theme-toggle.active i,
  .mobile-bottom-nav .theme-toggle:hover span,
  .mobile-bottom-nav .theme-toggle:active span,
  .mobile-bottom-nav .theme-toggle.active span {
    color: inherit !important;
  }

  /* Profile offcanvas bottom sheet theming */
  .mobile-profile-sheet {
    border-top-left-radius: 12px;
    border-top-right-radius: 12px;
  }
  .mobile-profile-sheet .offcanvas-header {
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  }
  body.dark-mode .mobile-profile-sheet {
    background: #0f0f0f;
    color: #ffffff;
  }
  body.dark-mode .mobile-profile-sheet .offcanvas-header {
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }
  body.dark-mode .mobile-profile-sheet .list-group-item {
    background: transparent;
    color: #ffffff;
    border-color: rgba(255, 255, 255, 0.1);
  }
  body.dark-mode .mobile-profile-sheet .list-group-item:hover {
    background: #55bcc9;
    color: #ffffff;
  }

  /* Make offcanvas close button white in dark mode */
  body.dark-mode .mobile-profile-sheet .btn-close {
    filter: invert(1) grayscale(100%);
    opacity: 0.9;
  }
  body.dark-mode .mobile-profile-sheet .btn-close:hover,
  body.dark-mode .mobile-profile-sheet .btn-close:focus {
    filter: invert(1) grayscale(100%);
    opacity: 1;
    box-shadow: none;
  }
}