/* ==========================================================================
   ToolBox Web - Responsive Styles & Mobile Navigation Drawer
   ========================================================================== */

/* --- Tablet & Medium Screens (< 992px) --- */
@media (max-width: 992px) {
  :root {
    --header-height: 64px;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }

  .tool-grid {
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 1.25rem;
  }

  .hero-title {
    font-size: 2.5rem;
  }
}

/* --- Mobile Navigation Drawer & Small Screens (< 768px) --- */
@media (max-width: 768px) {
  /* Header & Navigation Drawer */
  .mobile-toggle-btn {
    display: inline-flex;
  }

  .nav-menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--bg-surface);
    flex-direction: column;
    align-items: stretch;
    gap: 0.25rem;
    padding: 1.5rem;
    overflow-y: auto;
    border-top: 1px solid var(--border-color);
    box-shadow: var(--shadow-xl);
    transform: translateX(-100%);
    opacity: 0;
    visibility: hidden;
    transition: transform var(--transition-normal), opacity var(--transition-normal), visibility var(--transition-normal);
    z-index: 999;
  }

  .nav-menu.open {
    transform: translateX(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-link {
    padding: 0.85rem 1rem;
    font-size: 1.05rem;
    width: 100%;
    border-radius: var(--radius-md);
  }

  /* Dropdown Menu on Mobile */
  .nav-dropdown {
    width: 100%;
  }

  .nav-dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    background-color: var(--bg-elevated);
    margin-top: 0.25rem;
    margin-left: 0.5rem;
    margin-bottom: 0.5rem;
    padding: 0.5rem;
    display: none;
  }

  .nav-dropdown.open .nav-dropdown-menu {
    display: block;
  }

  .dropdown-link {
    padding: 0.65rem 0.85rem;
    font-size: 0.95rem;
  }

  /* Hero Adjustments */
  .hero-section {
    padding: 3rem 0 2rem;
  }

  .hero-title {
    font-size: 2rem;
  }

  .hero-desc {
    font-size: 1rem;
  }

  .hero-trust-bar {
    gap: 1rem;
    font-size: 0.8rem;
  }

  /* Tool Workspace on Mobile */
  .tool-workspace {
    padding: 1.25rem;
    border-radius: var(--radius-lg);
  }

  .tool-header-top {
    gap: 0.75rem;
  }

  .tool-header-icon {
    width: 44px;
    height: 44px;
  }

  .tool-title {
    font-size: 1.65rem;
  }

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

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .dropzone {
    padding: 2rem 1rem;
  }

  .dropzone-icon {
    width: 48px;
    height: 48px;
    margin-bottom: 0.5rem;
  }

  .dropzone-text {
    font-size: 1rem;
  }

  /* Footer on Mobile */
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
    gap: 1.25rem;
  }

  /* Toast Adjustments */
  .toast-container {
    left: 1rem;
    right: 1rem;
    bottom: 1rem;
  }

  .toast {
    min-width: unset;
    width: 100%;
  }

  /* Content Pages */
  .prose {
    padding: 1.5rem;
    border-radius: var(--radius-lg);
  }

  .guide-steps {
    grid-template-columns: 1fr;
  }
}

/* --- Extra Small Screens (< 480px) --- */
@media (max-width: 480px) {
  .container {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .hero-cta-group .btn {
    width: 100%;
  }

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

  .tab-nav {
    overflow-x: auto;
    white-space: nowrap;
    padding-bottom: 0.25rem;
  }

  .filter-pills {
    gap: 0.35rem;
  }

  .filter-pill {
    padding: 0.35rem 0.75rem;
    font-size: 0.8rem;
  }
}

/* Touch-device optimizations */
@media (hover: none) and (pointer: coarse) {
  .btn, .nav-link, .dropdown-link, .theme-toggle-btn, .mobile-toggle-btn {
    min-height: 44px;
    min-width: 44px;
  }

  .form-check {
    padding: 0.35rem 0;
  }
}