/* ==========================================================================
   GASTERUS v3 — MOBILE RESPONSIVE ADAPTATIONS
   ========================================================================== */

/* Bottom Navigation Bar on Mobile */
.mobile-bottom-nav {
  display: none;
}

@media (max-width: 768px) {
  .app-header .nav-menu {
    display: none;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }

  body {
    padding-bottom: 70px; /* Space for mobile nav */
  }

  .mobile-bottom-nav {
    display: flex;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: var(--bg-surface-glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-top: 1px solid var(--border-subtle);
    z-index: 90;
    justify-content: space-around;
    align-items: center;
  }

  .mobile-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
    font-size: 0.7rem;
    color: var(--text-secondary);
    width: 20%;
    text-align: center;
  }

  .mobile-nav-item svg {
    width: 20px;
    height: 20px;
  }

  .mobile-nav-item.active,
  .mobile-nav-item:hover {
    color: var(--brand-primary);
  }

  .mobile-nav-item.highlight {
    color: var(--brand-primary);
    font-weight: 700;
  }

  .container {
    padding-inline: var(--space-3);
  }

  h1 { font-size: 1.75rem; }
  h2 { font-size: 1.4rem; }
  h3 { font-size: 1.15rem; }
}