/* ============================================
   MOBILE BOTTOM NAVIGATION
   thumb-zone optimized, 5 items
   ============================================ */

.mobile-nav {
  display: none;
}

@media (max-width: 768px) {
  .mobile-nav {
    display: block;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: calc(60px + env(safe-area-inset-bottom));
    padding-bottom: env(safe-area-inset-bottom);
    background: rgba(15,15,15,0.95);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-top: 1px solid var(--border-gold);
    z-index: var(--z-fab);
  }

  .mobile-nav__list {
    display: flex;
    height: 60px;
    align-items: stretch;
  }

  .mobile-nav__item {
    flex: 1;
    display: flex;
  }

  .mobile-nav__link {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
    color: var(--text-faint);
    transition: color var(--duration) var(--ease);
    -webkit-tap-highlight-color: transparent;
    position: relative;
  }

  .mobile-nav__link:hover,
  .mobile-nav__link.active {
    color: var(--gold-light);
  }

  .mobile-nav__label {
    font-size: 10px;
    font-weight: var(--weight-medium);
    line-height: 1;
  }

  /* WhatsApp CTA item */
  .mobile-nav__item--whatsapp .mobile-nav__link--cta {
    color: var(--whatsapp);
    position: relative;
  }

  .mobile-nav__item--whatsapp .mobile-nav__link--cta::before {
    content: '';
    position: absolute;
    top: 6px;
    width: 44px;
    height: 44px;
    border-radius: var(--radius-full);
    background: rgba(37,211,102,0.15);
    border: 1px solid rgba(37,211,102,0.3);
    animation: wa-pulse 2.5s ease-in-out infinite;
  }

  @keyframes wa-pulse {
    0%, 100% { transform: scale(1); opacity: 0.8; }
    50% { transform: scale(1.1); opacity: 0.4; }
  }
}