.mobile-bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 1400;
  display: none;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 4px;
  padding: 8px 10px calc(8px + env(safe-area-inset-bottom));
  background: rgba(17, 24, 39, 0.97);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(10px);
}

.mobile-bottom-nav .mb-nav-btn {
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(31, 41, 55, 0.95);
  color: #9ca3af;
  border-radius: 12px;
  min-height: 52px;
  display: grid;
  place-items: center;
  gap: 2px;
  font-size: 11px;
  transition: all 0.2s ease;
}

.mobile-bottom-nav .mb-nav-btn i {
  font-size: 13px;
}

.mobile-bottom-nav .mb-nav-btn.active {
  background: linear-gradient(180deg, #2563eb, #1d4ed8);
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.25);
}

.pwa-install-btn {
  position: fixed;
  bottom: 88px;
  right: 14px;
  z-index: 1450;
  border: none;
  background: linear-gradient(120deg, #10b981, #0ea5e9);
  color: #ffffff;
  border-radius: 999px;
  padding: 10px 14px;
  font-size: 12px;
  font-weight: 700;
  box-shadow: 0 10px 24px rgba(14, 165, 233, 0.28);
}

.pwa-install-btn.hidden {
  display: none;
}

@media (max-width: 960px) {
  .mobile-bottom-nav {
    display: grid;
  }

  .page-container {
    padding-bottom: 72px;
  }
}