/* ====================================
   UNIVERSAL RESPONSIVE ARCHITECTURE
   Mobile-First Design System
   ==================================== */

/* ====================================
   CSS CUSTOM PROPERTIES
   ==================================== */
:root {
  /* Breakpoints */
  --bp-mobile: 480px;
  --bp-tablet: 768px;
  --bp-desktop: 992px;
  --bp-large: 1200px;
  
  /* Spacing Scale (Mobile-First) */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  
  /* Typography Scale */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  
  /* Container Widths */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1280px;
  --container-2xl: 1536px;
  
  /* Layout */
  --navbar-height: 60px;
  --sidebar-width: 280px;
}

/* ====================================
   BASE MOBILE STYLES (0-480px)
   ==================================== */

/* Container */
.container,
.menu-container,
.product-container {
  width: 100%;
  padding-left: var(--spacing-sm);
  padding-right: var(--spacing-sm);
  margin-left: auto;
  margin-right: auto;
}

/* Typography */
body {
  font-size: var(--text-base);
  line-height: 1.6;
}

h1 { font-size: clamp(1.75rem, 5vw, 2.25rem); }
h2 { font-size: clamp(1.5rem, 4vw, 2rem); }
h3 { font-size: clamp(1.25rem, 3vw, 1.75rem); }
h4 { font-size: clamp(1.125rem, 2.5vw, 1.5rem); }
h5 { font-size: clamp(1rem, 2vw, 1.25rem); }
h6 { font-size: clamp(0.875rem, 1.5vw, 1.125rem); }

/* Buttons & Interactive Elements */
button,
.btn,
a.btn {
  min-height: 44px; /* Touch-friendly */
  padding: 0.75rem 1.25rem;
  font-size: var(--text-base);
  border-radius: 12px;
  transition: all 0.2s ease;
}

/* Links */
a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

/* ====================================
   NAVBAR - MOBILE FIRST
   ==================================== */
.navbar {
  --navbar-height: 60px;
  position: sticky;
  top: 0;
  z-index: 1000;
  padding: 0.75rem var(--spacing-sm);
}

.navbar-brand {
  font-size: 1.25rem;
}

.navbar-toggler {
  min-width: 44px;
  min-height: 44px;
  padding: 0.5rem;
}

.navbar-collapse {
  margin-top: var(--spacing-sm);
}

.nav-link {
  padding: 0.75rem 1rem !important;
  font-size: var(--text-base);
}

/* ====================================
   FOOTER - MOBILE FIRST
   ==================================== */
.site-footer {
  padding: var(--spacing-xl) var(--spacing-sm) var(--spacing-lg);
}

.footer-grid {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

.footer-section {
  text-align: center;
}

.footer-section h6 {
  font-size: var(--text-lg);
  margin-bottom: var(--spacing-md);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  align-items: center;
}

.footer-links a {
  padding: 0.5rem;
  font-size: var(--text-sm);
}

.social-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  justify-content: center;
  margin-top: var(--spacing-md);
}

.social-icon-btn {
  width: 44px;
  height: 44px;
  min-width: 44px;
  min-height: 44px;
}

.newsletter-box {
  padding: var(--spacing-lg);
  margin-top: var(--spacing-lg);
}

.newsletter-form input {
  width: 100%;
  margin-bottom: var(--spacing-sm);
}

/* ====================================
   PRODUCT PAGE - MOBILE FIRST
   ==================================== */
.product-container {
  display: flex;
  flex-direction: column;
  gap: 0;
  max-width: 100%;
}

.product-media {
  width: 100%;
  padding: 0;
  order: 1;
}

.product-details {
  width: 100%;
  padding: var(--spacing-lg) var(--spacing-sm);
  order: 2;
  margin: 0;
  border-radius: 0;
  box-shadow: none;
}

.productMainSwiper {
  width: 100%;
  min-height: 300px;
  max-height: 60vh;
  border-radius: 0;
}

.productThumbsSwiper {
  padding: var(--spacing-sm);
}

.item-name {
  font-size: clamp(1.5rem, 5vw, 2rem);
  margin-bottom: var(--spacing-sm);
  white-space: normal;
  overflow: visible;
  text-overflow: clip;
}

.description {
  font-size: var(--text-base);
  line-height: 1.7;
  margin-bottom: var(--spacing-md);
}

.rating-summary-container {
  flex-direction: column;
  padding: var(--spacing-md);
  gap: var(--spacing-md);
  text-align: center;
}

.options-row {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
}

.select-wrapper {
  width: 100%;
}

.add-cart-btn {
  width: 100%;
  margin-top: var(--spacing-md);
}

.marketplace-buttons {
  flex-direction: column;
  gap: var(--spacing-sm);
}

.marketplace-btn {
  width: 100%;
  justify-content: center;
}

.related-products-mini {
  margin-top: var(--spacing-lg);
  padding: var(--spacing-md);
}

.mini-grid {
  display: flex;
  overflow-x: auto;
  gap: var(--spacing-sm);
  padding-bottom: var(--spacing-sm);
  -webkit-overflow-scrolling: touch;
}

.mini-card {
  flex: 0 0 140px;
  min-width: 140px;
}

/* Reviews Section */
.reviews-scroll-container {
  max-height: 400px;
  padding-right: var(--spacing-sm);
}

.comment-item-card {
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-sm);
}

/* ====================================
   MENU PAGE - MOBILE FIRST
   ==================================== */
.menu-container {
  padding: var(--spacing-lg) var(--spacing-sm);
}

.main-content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.filter-sidebar {
  position: static;
  width: 100%;
  max-height: none;
  margin-bottom: var(--spacing-lg);
  padding: var(--spacing-md);
  border-radius: 12px;
}

.content-area {
  width: 100%;
}

.menu-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-md);
}

.menu-item-card {
  width: 100%;
  padding: var(--spacing-sm);
}

.card-image-wrap {
  height: 200px;
}

.card-content {
  padding: var(--spacing-sm);
}

.card-title {
  font-size: var(--text-base);
  margin-bottom: var(--spacing-xs);
}

.card-price {
  font-size: var(--text-lg);
}

/* Category Tabs */
.category-tabs {
  display: flex;
  overflow-x: auto;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-xs);
  -webkit-overflow-scrolling: touch;
}

.category-tab {
  flex: 0 0 auto;
  padding: 0.75rem 1.25rem;
  white-space: nowrap;
  font-size: var(--text-sm);
}

/* ====================================
   TABLET (481px - 768px)
   ==================================== */
@media (min-width: 481px) {
  :root {
    --navbar-height: 70px;
    --spacing-sm: 1.25rem;
    --spacing-md: 2rem;
    --spacing-lg: 2.5rem;
    --spacing-xl: 4rem;
  }
  
  .container,
  .menu-container,
  .product-container {
    padding-left: var(--spacing-md);
    padding-right: var(--spacing-md);
  }
  
  /* Product Page */
  .product-details {
    padding: var(--spacing-lg);
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    margin: var(--spacing-md);
  }
  
  .productMainSwiper {
    border-radius: 8px;
  }
  
  .options-row {
    flex-direction: row;
    gap: var(--spacing-md);
  }
  
  .select-wrapper {
    flex: 1;
  }
  
  .marketplace-buttons {
    flex-direction: row;
    flex-wrap: wrap;
  }
  
  .marketplace-btn {
    width: auto;
    flex: 1;
    min-width: 200px;
  }
  
  /* Menu Page */
  .menu-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
  }
  
  .card-image-wrap {
    height: 240px;
  }
  
  /* Footer */
  .footer-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
  }
  
  .footer-section {
    text-align: left;
  }
  
  .footer-links {
    align-items: flex-start;
  }
  
  .social-row {
    justify-content: flex-start;
  }
}

/* ====================================
   DESKTOP (769px - 992px)
   ==================================== */
@media (min-width: 769px) {
  :root {
    --navbar-height: 80px;
  }
  
  .navbar {
    padding: 1rem var(--spacing-lg);
  }
  
  .navbar-brand {
    font-size: 1.5rem;
  }
  
  .navbar-collapse {
    margin-top: 0;
  }
  
  /* Menu Page */
  .menu-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .main-content {
    flex-direction: row;
    align-items: flex-start;
  }
  
  .filter-sidebar {
    position: sticky;
    top: calc(var(--navbar-height) + 24px);
    width: var(--sidebar-width);
    max-height: calc(100vh - var(--navbar-height) - 60px);
    overflow-y: auto;
    margin-bottom: 0;
  }
  
  .content-area {
    flex: 1;
  }
  
  /* Footer */
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
  }
  
  .site-footer {
    padding: 5rem var(--spacing-lg) 2rem;
  }
}

/* ====================================
   LARGE DESKTOP (993px+)
   ==================================== */
@media (min-width: 993px) {
  .container {
    max-width: var(--container-lg);
  }
  
  /* Product Page - Two Column Layout */
  .product-container {
    display: grid;
    grid-template-columns: 1fr 420px;
    gap: 2rem;
    max-width: 1200px;
    margin: 2.5rem auto;
    padding: 0 var(--spacing-lg);
  }
  
  .product-media {
    order: 1;
    padding: var(--spacing-md);
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: calc(var(--navbar-height) + 20px);
    align-self: start;
  }
  
  .product-details {
    order: 2;
    padding: 2rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.04);
    margin: 0;
  }
  
  .productMainSwiper {
    max-height: 600px;
  }
  
  .rating-summary-container {
    flex-direction: row;
    text-align: left;
  }
  
  /* Menu Page */
  .menu-grid {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  }
  
  .card-image-wrap {
    height: 280px;
  }
}

/* ====================================
   EXTRA LARGE DESKTOP (1200px+)
   ==================================== */
@media (min-width: 1200px) {
  .container {
    max-width: var(--container-xl);
  }
  
  .menu-container {
    max-width: 1440px;
  }
  
  .product-container {
    max-width: 1280px;
  }
  
  .menu-grid {
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  }
}

/* ====================================
   UTILITY CLASSES
   ==================================== */

/* Hide on Mobile */
@media (max-width: 768px) {
  .hide-mobile {
    display: none !important;
  }
}

/* Hide on Desktop */
@media (min-width: 769px) {
  .hide-desktop {
    display: none !important;
  }
}

/* Prevent Horizontal Scroll */
body {
  overflow-x: hidden;
}

.container,
.menu-container,
.product-container {
  overflow-x: hidden;
}

/* Touch-Friendly Spacing */
@media (hover: none) and (pointer: coarse) {
  button,
  .btn,
  a.btn,
  .nav-link,
  .social-icon-btn {
    min-height: 48px;
    min-width: 48px;
  }
}

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

/* Print Styles */
@media print {
  .navbar,
  .site-footer,
  .filter-sidebar,
  .add-cart-btn,
  .social-row {
    display: none !important;
  }
  
  .product-container,
  .menu-container {
    max-width: 100%;
    padding: 0;
  }
}