/* --- Bottom Navigation (Mobile) --- */
.mobile-bottom-nav { display: none; }
@media (max-width: 768px) {
  .mobile-bottom-nav { display: flex; position: fixed; bottom: 0; left: 0; right: 0; background: #fff; box-shadow: 0 -2px 8px #3B82F6FF; z-index: 1200; height: 62px; justify-content: space-around; align-items: center; border-top-left-radius: 18px; border-top-right-radius: 18px; padding-bottom: env(safe-area-inset-bottom); }
  .mobile-bottom-nav .nav-item { flex: 1; text-align: center; color: #888; font-size: 13px; text-decoration: none; display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 6px 0 0 0; transition: color 0.2s; }
  .mobile-bottom-nav .nav-item i { font-size: 22px; margin-bottom: 2px; transition: color 0.2s; }
  .mobile-bottom-nav .nav-item.active, .mobile-bottom-nav .nav-item:active { color: #3B82F6FF; }
  .mobile-bottom-nav .nav-item.active i, .mobile-bottom-nav .nav-item:active i { color: #3B82F6FF; }
  .mobile-bottom-nav .nav-item span { font-size: 11px; margin-top: 2px; letter-spacing: -0.5px; }
}