/* ITK-QR - Responsive Stylesheet */

/* Mobile Breakpoints (< 768px) */
@media (max-width: 767.98px) {
  .container {
    padding: 0 1rem;
  }

  .navbar {
    height: 64px;
  }

  .nav-links {
    display: none; /* Navigation handled via mobile menu or footer nav */
  }

  .hero-section {
    padding: 2.5rem 0 1.5rem;
  }

  .hero-title {
    font-size: 1.85rem;
  }

  .hero-description {
    font-size: 0.98rem;
  }

  .workspace-section {
    padding: 1rem 0 3rem;
  }

  .preview-card {
    position: relative;
    top: 0;
    margin-top: 1.5rem;
    padding: 1.25rem;
  }

  .qr-canvas-container {
    max-width: 260px;
  }

  .preview-actions {
    grid-template-columns: 1fr;
  }

  .tabs-header {
    justify-content: flex-start;
  }

  .tab-btn {
    padding: 0.75rem 1rem;
    font-size: 0.85rem;
  }

  .color-pickers-row {
    grid-template-columns: 1fr;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 1.75rem;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .toast-container {
    left: 1rem;
    right: 1rem;
    bottom: 1rem;
  }

  .toast {
    min-width: 100%;
  }

  /* Mobile Bottom Quick Navigation Bar */
  .mobile-bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 90;
    background-color: var(--bg-nav);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-around;
    padding: 0.5rem 0;
  }

  .mobile-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.2rem;
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--text-muted);
    padding: 0.3rem 0.5rem;
  }

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

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

  body {
    padding-bottom: 60px; /* Offset for bottom mobile nav */
  }
}

/* Tablet Breakpoints (768px - 1023.98px) */
@media (min-width: 768px) and (max-width: 1023.98px) {
  .hero-title {
    font-size: 2.5rem;
  }

  .workspace-grid {
    grid-template-columns: 1fr;
  }

  .preview-card {
    position: relative;
    top: 0;
  }

  .qr-canvas-container {
    max-width: 320px;
  }

  .mobile-bottom-nav {
    display: none;
  }
}

/* Desktop & Large Desktop (>= 1024px) */
@media (min-width: 1024px) {
  .mobile-bottom-nav {
    display: none;
  }
}

@media (min-width: 1440px) {
  .container {
    max-width: 1380px;
  }

  .hero-title {
    font-size: 3.5rem;
  }
}