/**
 * EasyLookup Design System - Responsive & Media Queries
 * Mobile navigation drawer, adaptive grids, and touch targets
 */

/* ==========================================================================
   Mobile Navigation Drawer
   ========================================================================== */
.mobile-drawer-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(15, 23, 42, 0.5);
  backdrop-filter: blur(4px);
  z-index: var(--z-modal-backdrop);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
}

.mobile-drawer-backdrop.open {
  opacity: 1;
  pointer-events: auto;
}

.mobile-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 280px;
  max-width: 80vw;
  background-color: var(--bg-card);
  border-left: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-xl);
  z-index: var(--z-modal);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform var(--transition-base);
}

.mobile-drawer-backdrop.open .mobile-drawer {
  transform: translateX(0);
}

.mobile-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-subtle);
}

.mobile-drawer-links {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  flex-grow: 1;
}

.mobile-drawer-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-primary);
  border-radius: var(--radius-md);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.mobile-drawer-link:hover,
.mobile-drawer-link.active {
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  font-weight: 600;
}

.mobile-drawer-footer {
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* ==========================================================================
   Breakpoints
   ========================================================================== */

/* Large Tablets & Small Laptops (<= 1024px) */
@media (max-width: 1024px) {
  .tools-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .categories-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .features-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

/* Tablets & Mobile Screens (<= 768px) */
@media (max-width: 768px) {
  :root {
    --header-height: 60px;
    --container-padding: 1.25rem;
  }

  .primary-nav {
    display: none;
  }

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

  .tools-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
  }

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

  .hero-section {
    padding: 3rem 0 2rem;
  }

  .hero-title {
    font-size: 2.25rem;
  }

  .hero-description {
    font-size: 1rem;
    margin-bottom: 1.75rem;
  }

  .section {
    padding: 2.5rem 0;
  }

  .section-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }
}

/* Small Mobile Screens (<= 540px) */
@media (max-width: 540px) {
  .tools-grid {
    grid-template-columns: 1fr;
  }

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

  .hero-title {
    font-size: 1.875rem;
  }

  .search-input {
    font-size: 0.9375rem;
    padding-right: 4.5rem;
  }

  .search-shortcut-badge {
    display: none;
  }

  .tool-card {
    padding: 1rem;
  }
}

/* Touch Device Target Enforcement */
@media (pointer: coarse) {
  .btn,
  .nav-link,
  .filter-tab,
  .btn-favorite,
  .btn-icon {
    min-height: 44px;
  }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}