/* ModernShop - Responsive Stylesheet */
/* Mobile-First Responsive Design Implementation */

/* Base Mobile Styles (320px and up) */
/* Following mobile-first design principles from research */

/* Container and Layout */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* Mobile Navigation Adjustments */
.mobile-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background-color: var(--color-white);
  border-top: 1px solid #e5e7eb;
  box-shadow: var(--shadow-lg);
  z-index: 50;
}

.mobile-menu.active {
  display: block;
  animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Touch-Friendly Interface Elements */
/* Minimum 44px touch targets for mobile */
.touch-target {
  min-height: 44px;
  min-width: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
}

button,
.btn,
.nav-link,
.filter-btn {
  min-height: 44px;
  padding: 12px 16px;
}

/* Mobile Typography Adjustments */
/* Ensuring 16px minimum for mobile legibility */
@media (max-width: 767px) {
  html {
    font-size: 16px; /* Prevent zoom on iOS */
  }
  
  h1 { font-size: 2rem; }
  h2 { font-size: 1.75rem; }
  h3 { font-size: 1.5rem; }
  h4 { font-size: 1.25rem; }
  
  /* Hero section mobile adjustments */
  .hero-title {
    font-size: 2.5rem;
    line-height: 1.2;
  }
  
  .hero-subtitle {
    font-size: 1.125rem;
    line-height: 1.5;
  }
}

/* Mobile Product Grid */
@media (max-width: 767px) {
  #products-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .product-card {
    margin-bottom: 1rem;
  }
  
  .product-card-image {
    height: 180px;
  }
}

/* Mobile Cart Sidebar */
@media (max-width: 767px) {
  #cart-sidebar {
    width: 100vw;
    max-width: 100vw;
  }
  
  .cart-item {
    flex-direction: column;
    align-items: flex-start;
    padding: 1rem;
  }
  
  .cart-item-image {
    width: 80px;
    height: 80px;
    margin-bottom: 0.5rem;
  }
  
  .cart-item-details {
    width: 100%;
  }
}

/* Mobile Modal Adjustments */
@media (max-width: 767px) {
  #product-modal .bg-white {
    margin: 1rem;
    max-height: calc(100vh - 2rem);
    border-radius: 1rem;
  }
  
  .modal-content {
    padding: 1rem;
  }
}

/* Mobile Filter Buttons */
@media (max-width: 767px) {
  .filter-buttons {
    display: flex;
    overflow-x: auto;
    gap: 0.5rem;
    padding: 0.5rem 0;
    -webkit-overflow-scrolling: touch;
  }
  
  .filter-btn {
    flex-shrink: 0;
    white-space: nowrap;
  }
}

/* Tablet Styles (768px and up) */
@media (min-width: 768px) {
  .container {
    padding: 0 2rem;
  }
  
  /* Tablet Product Grid */
  #products-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }
  
  /* Tablet Navigation */
  .mobile-menu-toggle {
    display: none;
  }
  
  /* Tablet Hero Section */
  .hero-title {
    font-size: 3rem;
  }
  
  .hero-subtitle {
    font-size: 1.25rem;
  }
  
  /* Tablet Category Grid */
  .category-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }
  
  /* Tablet Feature Grid */
  .feature-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
  }
}

/* Desktop Small (1024px and up) */
@media (min-width: 1024px) {
  .container {
    padding: 0 3rem;
  }
  
  /* Desktop Product Grid */
  #products-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
  }
  
  /* Desktop Hero Section */
  .hero-title {
    font-size: 3.5rem;
  }
  
  .hero-subtitle {
    font-size: 1.5rem;
  }
  
  /* Desktop Category Grid */
  .category-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
  }
  
  /* Desktop Cart Sidebar */
  #cart-sidebar {
    width: 400px;
  }
  
  /* Desktop Navigation Hover Effects */
  .nav-link:hover {
    transform: translateY(-1px);
  }
  
  /* Desktop Product Card Hover Effects */
  .product-card:hover {
    transform: translateY(-8px) scale(1.02);
  }
}

/* Desktop Large (1280px and up) */
@media (min-width: 1280px) {
  .container {
    max-width: 1280px;
  }
  
  /* Large Desktop Product Grid */
  #products-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
  }
  
  /* Large Desktop Hero Section */
  .hero-title {
    font-size: 4rem;
  }
  
  .hero-subtitle {
    font-size: 1.75rem;
  }
}

/* Desktop Extra Large (1536px and up) */
@media (min-width: 1536px) {
  .container {
    max-width: 1536px;
  }
  
  /* Extra Large Desktop Product Grid */
  #products-grid {
    grid-template-columns: repeat(5, 1fr);
    gap: 2.5rem;
  }
}

/* Responsive Images */
img {
  max-width: 100%;
  height: auto;
}

.responsive-image {
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* Responsive Video */
.video-container {
  position: relative;
  width: 100%;
  height: 0;
  padding-bottom: 56.25%; /* 16:9 aspect ratio */
}

.video-container iframe,
.video-container video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

/* Responsive Tables */
@media (max-width: 767px) {
  .responsive-table {
    display: block;
    overflow-x: auto;
    white-space: nowrap;
    -webkit-overflow-scrolling: touch;
  }
  
  .responsive-table table {
    min-width: 600px;
  }
}

/* Responsive Forms */
@media (max-width: 767px) {
  .form-row {
    flex-direction: column;
  }
  
  .form-col {
    width: 100%;
    margin-bottom: 1rem;
  }
}

/* Responsive Spacing */
@media (max-width: 767px) {
  .section-padding {
    padding: 3rem 0;
  }
  
  .card-padding {
    padding: 1rem;
  }
}

@media (min-width: 768px) {
  .section-padding {
    padding: 4rem 0;
  }
  
  .card-padding {
    padding: 1.5rem;
  }
}

@media (min-width: 1024px) {
  .section-padding {
    padding: 5rem 0;
  }
  
  .card-padding {
    padding: 2rem;
  }
}

/* Responsive Text Alignment */
@media (max-width: 767px) {
  .text-center-mobile {
    text-align: center;
  }
  
  .text-left-mobile {
    text-align: left;
  }
}

/* Responsive Display Utilities */
@media (max-width: 767px) {
  .hidden-mobile {
    display: none !important;
  }
  
  .block-mobile {
    display: block !important;
  }
  
  .flex-mobile {
    display: flex !important;
  }
}

@media (min-width: 768px) {
  .hidden-tablet {
    display: none !important;
  }
  
  .block-tablet {
    display: block !important;
  }
  
  .flex-tablet {
    display: flex !important;
  }
}

@media (min-width: 1024px) {
  .hidden-desktop {
    display: none !important;
  }
  
  .block-desktop {
    display: block !important;
  }
  
  .flex-desktop {
    display: flex !important;
  }
}

/* Responsive Flexbox Utilities */
@media (max-width: 767px) {
  .flex-col-mobile {
    flex-direction: column;
  }
  
  .flex-row-mobile {
    flex-direction: row;
  }
  
  .justify-center-mobile {
    justify-content: center;
  }
  
  .items-center-mobile {
    align-items: center;
  }
}

/* Responsive Grid Utilities */
@media (max-width: 767px) {
  .grid-cols-1-mobile {
    grid-template-columns: repeat(1, 1fr);
  }
  
  .grid-cols-2-mobile {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 768px) and (max-width: 1023px) {
  .grid-cols-2-tablet {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .grid-cols-3-tablet {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1024px) {
  .grid-cols-3-desktop {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .grid-cols-4-desktop {
    grid-template-columns: repeat(4, 1fr);
  }
  
  .grid-cols-5-desktop {
    grid-template-columns: repeat(5, 1fr);
  }
}

/* Responsive Padding and Margin */
@media (max-width: 767px) {
  .p-mobile-sm { padding: 0.5rem; }
  .p-mobile-md { padding: 1rem; }
  .p-mobile-lg { padding: 1.5rem; }
  
  .m-mobile-sm { margin: 0.5rem; }
  .m-mobile-md { margin: 1rem; }
  .m-mobile-lg { margin: 1.5rem; }
}

/* Responsive Font Sizes */
@media (max-width: 767px) {
  .text-sm-mobile { font-size: 0.875rem; }
  .text-base-mobile { font-size: 1rem; }
  .text-lg-mobile { font-size: 1.125rem; }
  .text-xl-mobile { font-size: 1.25rem; }
  .text-2xl-mobile { font-size: 1.5rem; }
}

/* High DPI / Retina Display Support */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  .retina-image {
    /* Use higher resolution images for retina displays */
  }
}

/* Landscape Orientation Adjustments */
@media (orientation: landscape) and (max-height: 500px) {
  .hero-section {
    padding: 2rem 0;
  }
  
  .hero-title {
    font-size: 2rem;
  }
  
  .hero-subtitle {
    font-size: 1rem;
  }
}

/* Print Responsive Styles */
@media print {
  .container {
    max-width: none;
    padding: 0;
  }
  
  .grid {
    display: block;
  }
  
  .product-card {
    break-inside: avoid;
    margin-bottom: 1rem;
  }
  
  .no-print {
    display: none !important;
  }
}

/* Accessibility - Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  .product-card:hover {
    transform: none;
  }
  
  .nav-link:hover {
    transform: none;
  }
  
  .animate-fade-in,
  .animate-slide-in-right,
  .animate-pulse {
    animation: none;
  }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
  :root {
    --color-dark: #f8fafc;
    --color-light: #1f2937;
    --color-white: #374151;
    --color-gray: #9ca3af;
  }
  
  body {
    background-color: var(--color-light);
    color: var(--color-dark);
  }
  
  .card {
    background-color: var(--color-white);
    border: 1px solid #4b5563;
  }
  
  .form-input {
    background-color: var(--color-white);
    border-color: #4b5563;
    color: var(--color-dark);
  }
}

/* Container Queries Support (Future-proofing) */
@supports (container-type: inline-size) {
  .product-container {
    container-type: inline-size;
  }
  
  @container (min-width: 300px) {
    .product-card-title {
      font-size: 1.125rem;
    }
  }
  
  @container (min-width: 400px) {
    .product-card-title {
      font-size: 1.25rem;
    }
  }
}