/* Mobile-First Responsive Design for QuickLocal */

/* Mobile Base Styles (320px and up) */
:root {
  /* Mobile-specific variables */
  --mobile-header-height: 60px;
  --mobile-nav-height: 70px;
  --mobile-padding: 16px;
  --mobile-gap: 12px;
  --touch-target-size: 44px;
  
  /* Responsive breakpoints */
  --mobile-s: 320px;
  --mobile-m: 375px;
  --mobile-l: 425px;
  --tablet: 768px;
  --laptop: 1024px;
  --laptop-l: 1440px;
  --desktop: 2560px;
}

/* Enhanced Mobile Navigation */
.mobile-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--mobile-header-height);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  z-index: var(--z-sticky);
  display: none;
}

.mobile-nav-container {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--mobile-padding);
}

.mobile-logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary);
  text-decoration: none;
}

.mobile-nav-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.mobile-nav-btn {
  width: var(--touch-target-size);
  height: var(--touch-target-size);
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-fast);
  position: relative;
}

.mobile-nav-btn:hover {
  background: var(--bg-hover);
  color: var(--primary);
}

.mobile-nav-btn.active {
  background: var(--primary);
  color: white;
}

/* Mobile Bottom Navigation */
.mobile-bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: var(--mobile-nav-height);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  border-top: 1px solid var(--border);
  z-index: var(--z-sticky);
  display: none;
  padding-bottom: env(safe-area-inset-bottom);
}

.mobile-nav-items {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-around;
  padding: 0 8px;
}

.mobile-nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  color: var(--text-light);
  font-size: 10px;
  font-weight: 500;
  transition: var(--transition-fast);
  min-width: var(--touch-target-size);
  position: relative;
}

.mobile-nav-item i {
  font-size: 18px;
  margin-bottom: 2px;
}

.mobile-nav-item:hover,
.mobile-nav-item.active {
  color: var(--primary);
  background: rgba(26, 115, 232, 0.1);
}

.mobile-nav-item .badge {
  position: absolute;
  top: 4px;
  right: 8px;
  background: var(--error);
  color: white;
  border-radius: var(--radius-full);
  width: 16px;
  height: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  font-weight: 600;
}

/* Mobile Search */
.mobile-search-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.8);
  z-index: var(--z-modal);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-normal);
}

.mobile-search-overlay.active {
  opacity: 1;
  visibility: visible;
}

.mobile-search-container {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  background: white;
  padding: var(--mobile-padding);
  transform: translateY(-100%);
  transition: var(--transition-normal);
}

.mobile-search-overlay.active .mobile-search-container {
  transform: translateY(0);
}

.mobile-search-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.mobile-search-input {
  flex: 1;
  height: 48px;
  padding: 0 16px;
  border: 2px solid var(--border);
  border-radius: var(--radius-lg);
  font-size: 16px;
  background: var(--bg-secondary);
}

.mobile-search-input:focus {
  outline: none;
  border-color: var(--primary);
  background: white;
}

.mobile-search-cancel {
  color: var(--primary);
  font-weight: 600;
  background: none;
  border: none;
  padding: 8px 16px;
  cursor: pointer;
}

/* Mobile Product Grid */
.mobile-products-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--mobile-gap);
  padding: var(--mobile-padding);
}

.mobile-product-card {
  background: white;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition-normal);
  position: relative;
}

.mobile-product-card:active {
  transform: scale(0.98);
  box-shadow: var(--shadow-md);
}

.mobile-product-image {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  background: var(--bg-tertiary);
}

.mobile-product-info {
  padding: 12px;
}

.mobile-product-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.3;
  margin-bottom: 4px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.mobile-product-price {
  font-size: 14px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 8px;
}

.mobile-product-rating {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  color: var(--text-light);
}

.mobile-product-actions {
  display: flex;
  gap: 8px;
  margin-top: 8px;
}

.mobile-add-to-cart {
  flex: 1;
  height: 36px;
  background: var(--primary);
  color: white;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  cursor: pointer;
  transition: var(--transition-fast);
}

.mobile-add-to-cart:active {
  background: var(--primary-dark);
  transform: scale(0.95);
}

.mobile-quick-action {
  width: 36px;
  height: 36px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: white;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-fast);
}

.mobile-quick-action:active {
  background: var(--bg-hover);
  color: var(--primary);
  transform: scale(0.95);
}

.mobile-quick-action.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

/* Mobile Filters */
.mobile-filters-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.8);
  z-index: var(--z-modal);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-normal);
}

.mobile-filters-overlay.active {
  opacity: 1;
  visibility: visible;
}

.mobile-filters-panel {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: white;
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  padding: 24px var(--mobile-padding);
  max-height: 80vh;
  overflow-y: auto;
  transform: translateY(100%);
  transition: var(--transition-normal);
  padding-bottom: calc(24px + env(safe-area-inset-bottom));
}

.mobile-filters-overlay.active .mobile-filters-panel {
  transform: translateY(0);
}

.mobile-filters-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-light);
}

.mobile-filters-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
}

.mobile-filters-close {
  width: 32px;
  height: 32px;
  border: none;
  border-radius: var(--radius-full);
  background: var(--bg-hover);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.mobile-filter-section {
  margin-bottom: 24px;
}

.mobile-filter-label {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 12px;
  display: block;
}

.mobile-filter-options {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.mobile-filter-option {
  padding: 8px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  background: white;
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition-fast);
  min-height: var(--touch-target-size);
  display: flex;
  align-items: center;
}

.mobile-filter-option:active {
  transform: scale(0.95);
}

.mobile-filter-option.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

.mobile-filters-actions {
  position: sticky;
  bottom: 0;
  background: white;
  padding: 16px 0 0 0;
  border-top: 1px solid var(--border-light);
  margin-top: 24px;
  display: flex;
  gap: 12px;
}

.mobile-filter-btn {
  flex: 1;
  height: 48px;
  border: none;
  border-radius: var(--radius-lg);
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-fast);
}

.mobile-filter-clear {
  background: white;
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.mobile-filter-apply {
  background: var(--primary);
  color: white;
}

/* Swipe Gestures */
.swipeable {
  position: relative;
  overflow: hidden;
  touch-action: pan-x;
}

.swipe-actions {
  position: absolute;
  top: 0;
  right: 0;
  height: 100%;
  display: flex;
  align-items: center;
  background: var(--error);
  transform: translateX(100%);
  transition: var(--transition-fast);
}

.swipe-action {
  width: 80px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  cursor: pointer;
}

.swipeable.swiping .swipe-actions {
  transform: translateX(0);
}

/* Pull to Refresh */
.pull-to-refresh-container {
  position: relative;
  overflow: hidden;
}

.pull-indicator {
  position: absolute;
  top: -60px;
  left: 50%;
  transform: translateX(-50%);
  width: 40px;
  height: 40px;
  background: var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  transition: var(--transition-normal);
}

.pull-indicator.active {
  top: 20px;
}

.pull-indicator.loading {
  animation: spin 1s linear infinite;
}

/* Touch Feedback */
.touch-feedback {
  position: relative;
  overflow: hidden;
}

.touch-feedback::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(26, 115, 232, 0.2);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.3s, height 0.3s;
}

.touch-feedback.touched::before {
  width: 300px;
  height: 300px;
}

/* Floating Action Button for Mobile */
.mobile-fab {
  position: fixed;
  bottom: calc(var(--mobile-nav-height) + 16px);
  right: 16px;
  width: 56px;
  height: 56px;
  background: var(--primary);
  color: white;
  border: none;
  border-radius: 50%;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  cursor: pointer;
  transition: var(--transition-normal);
  z-index: var(--z-fixed);
}

.mobile-fab:active {
  transform: scale(0.9);
}

.mobile-fab.scroll-up {
  bottom: calc(var(--mobile-nav-height) + 16px + 70px);
}

/* Progressive Web App Styles */
.pwa-install-prompt {
  position: fixed;
  bottom: calc(var(--mobile-nav-height) + 16px);
  left: 16px;
  right: 16px;
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px;
  box-shadow: var(--shadow-lg);
  z-index: var(--z-fixed);
  transform: translateY(100%);
  transition: var(--transition-normal);
}

.pwa-install-prompt.show {
  transform: translateY(0);
}

.pwa-prompt-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.pwa-app-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  background: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 20px;
}

.pwa-app-info h3 {
  font-size: 16px;
  font-weight: 700;
  margin: 0 0 2px 0;
}

.pwa-app-info p {
  font-size: 13px;
  color: var(--text-secondary);
  margin: 0;
}

.pwa-prompt-actions {
  display: flex;
  gap: 8px;
}

.pwa-btn {
  flex: 1;
  height: 40px;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-fast);
}

.pwa-btn-dismiss {
  background: var(--bg-hover);
  color: var(--text-secondary);
}

.pwa-btn-install {
  background: var(--primary);
  color: white;
}

/* iOS Safe Area Support */
@supports (padding-bottom: env(safe-area-inset-bottom)) {
  .mobile-header {
    padding-top: env(safe-area-inset-top);
    height: calc(var(--mobile-header-height) + env(safe-area-inset-top));
  }
  
  .mobile-bottom-nav {
    padding-bottom: env(safe-area-inset-bottom);
    height: calc(var(--mobile-nav-height) + env(safe-area-inset-bottom));
  }
  
  body.mobile-layout {
    padding-top: calc(var(--mobile-header-height) + env(safe-area-inset-top));
    padding-bottom: calc(var(--mobile-nav-height) + env(safe-area-inset-bottom));
  }
}

/* Media Queries for Progressive Enhancement */

/* Small Mobile (320px - 374px) */
@media (max-width: 374px) {
  :root {
    --mobile-padding: 12px;
    --mobile-gap: 8px;
  }
  
  .mobile-products-grid {
    gap: 8px;
    padding: 12px;
  }
  
  .mobile-product-info {
    padding: 8px;
  }
  
  .mobile-product-title {
    font-size: 12px;
  }
}

/* Medium Mobile (375px - 424px) */
@media (min-width: 375px) and (max-width: 424px) {
  .mobile-products-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Large Mobile (425px - 767px) */
@media (min-width: 425px) and (max-width: 767px) {
  .mobile-products-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .mobile-product-title {
    font-size: 14px;
  }
  
  .mobile-product-info {
    padding: 16px;
  }
}

/* Show mobile layout on mobile devices */
@media (max-width: 767px) {
  /* Hide desktop header */
  .header {
    display: none !important;
  }
  
  /* Show mobile navigation */
  .mobile-header,
  .mobile-bottom-nav {
    display: flex;
  }
  
  /* Add padding for fixed navigation */
  body {
    padding-top: var(--mobile-header-height);
    padding-bottom: var(--mobile-nav-height);
  }
  
  /* Mobile-specific layout adjustments */
  .hero {
    min-height: 50vh;
    padding: 2rem 0;
  }
  
  .hero-container {
    grid-template-columns: 1fr;
    gap: 1rem;
    text-align: center;
  }
  
  .hero-title {
    font-size: 1.75rem;
  }
  
  .hero-subtitle {
    font-size: 1rem;
  }
  
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
    max-width: 300px;
    margin: 0 auto;
  }
  
  /* Hide desktop-specific elements */
  .nav-links,
  .user-actions a:not(.mobile-visible),
  .filter-panel,
  .carousel-btn {
    display: none !important;
  }
  
  /* Mobile product grid replaces desktop grid */
  .products-grid {
    display: none;
  }
  
  .mobile-products-grid {
    display: grid;
  }
  
  /* Mobile-optimized sections */
  .section-title {
    font-size: 1.5rem;
    text-align: center;
  }
  
  .section-subtitle {
    font-size: 1rem;
    text-align: center;
  }
  
  /* Footer adjustments */
  .footer-content {
    grid-template-columns: 1fr;
    gap: 2rem;
    text-align: center;
  }
}

/* Tablet adjustments (768px - 1023px) */
@media (min-width: 768px) and (max-width: 1023px) {
  .mobile-products-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    padding: 20px;
  }
  
  .mobile-header,
  .mobile-bottom-nav {
    display: none;
  }
  
  .enhanced-products-grid {
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 20px;
  }
}

/* Hover effects only for devices that support hover */
@media (hover: hover) and (pointer: fine) {
  .mobile-nav-btn:hover,
  .mobile-nav-item:hover,
  .mobile-quick-action:hover {
    transform: none;
  }
  
  .mobile-nav-btn:hover {
    background: var(--bg-hover);
    color: var(--primary);
  }
}

/* High DPI displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  .mobile-product-image {
    image-rendering: -webkit-optimize-contrast;
  }
}

/* Dark mode for mobile */
@media (prefers-color-scheme: dark) {
  .mobile-header,
  .mobile-bottom-nav,
  .mobile-search-container,
  .mobile-filters-panel {
    background: rgba(30, 30, 30, 0.95);
    border-color: #404040;
  }
  
  .mobile-logo,
  .mobile-filters-title {
    color: white;
  }
  
  .mobile-nav-item,
  .mobile-nav-btn {
    color: #b3b3b3;
  }
  
  .mobile-nav-item.active,
  .mobile-nav-btn.active {
    color: var(--primary);
  }
}

/* Accessibility improvements for mobile */
@media (prefers-reduced-motion: reduce) {
  .mobile-header,
  .mobile-bottom-nav,
  .mobile-search-container,
  .mobile-filters-panel {
    transition: none;
  }
  
  .mobile-product-card,
  .mobile-nav-btn,
  .mobile-filter-option {
    transition: none;
  }
}

/* Print styles for mobile */
@media print {
  .mobile-header,
  .mobile-bottom-nav,
  .mobile-fab,
  .pwa-install-prompt {
    display: none !important;
  }
  
  body {
    padding: 0 !important;
  }
  
  .mobile-products-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }
}