/* ==========================================================================
   OmniTool - Responsive Breakpoints & Mobile Styles
   Mobile-First & Fluid Responsive Design
   ========================================================================== */

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

  .hero-title {
    font-size: 2.6rem;
  }

  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .tools-grid {
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  }

  .categories-grid {
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  }
}

/* --- Mobile Navigation Drawer (max-width: 768px) --- */
@media (max-width: 768px) {
  .hero-section {
    padding: 48px 0 32px;
  }

  .hero-title {
    font-size: 2.1rem;
    line-height: 1.25;
  }

  .hero-desc {
    font-size: 1.02rem;
  }

  .search-kbd {
    display: none;
  }

  .search-input {
    padding-right: 50px;
    font-size: 0.98rem;
    height: 50px;
  }

  .mobile-nav-toggle {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-surface);
    flex-direction: column;
    align-items: stretch;
    padding: 24px;
    gap: 12px;
    overflow-y: auto;
    border-top: 1px solid var(--border-color);
    box-shadow: var(--shadow-xl);
    transform: translateX(-100%);
    transition: transform var(--transition-normal);
    z-index: 999;
  }

  .nav-menu.is-open {
    transform: translateX(0);
  }

  .nav-dropdown-item .dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    padding-left: 14px;
    margin-top: 4px;
    background: var(--bg-muted);
    border-radius: var(--radius-md);
  }

  .nav-link {
    font-size: 1.05rem;
    padding: 12px 16px;
    width: 100%;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 28px;
  }

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

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

  .section {
    padding: 42px 0;
  }

  .section-title {
    font-size: 1.75rem;
  }

  .cta-banner {
    padding: 36px 20px;
  }
  .cta-banner h2 {
    font-size: 1.65rem;
  }

  .toast-container {
    left: 16px;
    right: 16px;
    bottom: 16px;
  }
}

/* --- Small Mobile (max-width: 480px) --- */
@media (max-width: 480px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }

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

  .hero-actions {
    flex-direction: column;
    width: 100%;
  }
  .hero-actions .btn {
    width: 100%;
  }

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

  .categories-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  .category-card {
    padding: 14px;
  }

  .tool-card {
    padding: 18px;
  }

  .ad-box {
    padding: 10px;
    min-height: 60px;
  }
}