/* ===== NOVA TECH - MODERN MOBILE-FIRST E-COMMERCE CSS ===== */

/* === Base Variables === */
:root {
  /* Color scheme - enhanced light theme with vivid accent colors */
  --bg-primary: #f8f9fa;
  --bg-secondary: #ffffff;
  --bg-card: #ffffff;
  --bg-accent: #f1f3f7;
  
  /* Text colors - improved contrast */
  --text-primary: #1a1d1f;
  --text-secondary: #5a6474;
  --text-light: #9ea8b8;
  
  /* Accent colors - more vibrant */
  --accent-primary: #ff3b30;
  --accent-secondary: #ff6b52;
  --accent-tertiary: #f2f2f7;
  --accent-hover: #e82a20; /* New hover state color */
  
  /* Gradients - adding fancy elements */
  --gradient-primary: linear-gradient(135deg, #ff3b30, #ff6b52);
  --gradient-secondary: linear-gradient(135deg, #f8f9fa, #ffffff);
  
  /* Borders */
  --border-light: #e8eaed;
  --border-radius-sm: 8px;
  --border-radius-md: 12px;
  --border-radius-lg: 16px;
  --border-radius-xl: 20px;
  --border-radius-pill: 50px;
  
  /* Shadows - enhanced for depth */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 6px 16px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 12px 28px rgba(0, 0, 0, 0.12);
  --shadow-hover: 0 14px 32px rgba(0, 0, 0, 0.16);
  --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.05);
  
  /* Transitions - smoother animations */
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
  
  /* Font sizes */
  --font-xs: 0.75rem;
  --font-sm: 0.875rem;
  --font-md: 1rem;
  --font-lg: 1.125rem;
  --font-xl: 1.25rem;
  --font-2xl: 1.5rem;
  --font-3xl: 1.875rem;
  --font-4xl: 2.25rem;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
}

/* === Reset & Base Styles === */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  height: 100dvh;
  width: 100%;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  overflow-x: hidden;
  scroll-behavior: smooth; /* Smooth scrolling */
}

body {
  display: flex;
  flex-direction: column;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

button {
  cursor: pointer;
  font-family: inherit;
  border: none;
  outline: none;
  transition: all var(--transition-normal);
}

img {
  max-width: 100%;
  height: auto;
}

/* === Layout === */
.main-content {
  flex: 1;
  width: 100%;
  max-width: 100%;
  margin: 0 auto;
  padding: 0;
  position: relative;
}

/* === Header === */
header {
  padding: var(--spacing-md) var(--spacing-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: rgba(255, 255, 255, 0.95);
  border-bottom: 1px solid var(--border-light);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.logo-icon {
  color: var(--accent-primary);
  font-size: 1.5rem;
  animation: pulse 2s infinite ease-in-out;
}

@keyframes pulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.05); }
  100% { transform: scale(1); }
}

.logo-text, header h1 {
  font-weight: 700;
  font-size: var(--font-lg);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

nav {
  display: none; /* On mobile, hide the navigation */
}

@media (min-width: 768px) {
  nav {
    display: flex;
    gap: var(--spacing-xl);
  }
  
  nav a {
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
    padding: 0.25em 0;
  }
  
  nav a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--transition-normal);
  }
  
  nav a:hover {
    color: var(--text-primary);
  }
  
  nav a:hover::after {
    width: 100%;
  }
}

/* === Product Grid === */
.section-header {
  padding: var(--spacing-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.section-title {
  font-size: var(--font-xl);
  font-weight: 700;
  position: relative;
  padding-bottom: var(--spacing-xs);
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 40px;
  height: 3px;
  background: var(--gradient-primary);
  border-radius: var(--border-radius-pill);
}

.filter-options {
  display: flex;
  gap: var(--spacing-sm);
}

.filter-button {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  background: var(--bg-secondary);
  color: var(--text-secondary);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--border-radius-pill);
  font-size: var(--font-sm);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.filter-button:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: var(--spacing-md);
  padding: 0 var(--spacing-lg);
}

.product-card {
  background: var(--bg-secondary);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  transition: all var(--transition-bounce);
  display: flex;
  flex-direction: column;
  height: 100%;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--border-light);
  position: relative;
  isolation: isolate;
}

.product-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-hover);
  border-color: transparent;
}

.product-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(transparent, transparent, rgba(255, 59, 48, 0.05));
  opacity: 0;
  transition: opacity var(--transition-normal);
  z-index: -1;
}

.product-card:hover::before {
  opacity: 1;
}

.product-image-container {
  position: relative;
  width: 100%;
  background-color: var(--bg-accent);
  overflow: hidden;
  padding: 10px;
  aspect-ratio: 1 / 1; /* Keep square shape on mobile */
}

.product-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

.product-card:hover .product-image {
  transform: scale(1.05);
}

.product-details {
  padding: var(--spacing-md);
  display: flex;
  flex-direction: column;
  flex: 1;
}

.product-title {
  font-size: var(--font-md);
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
  line-height: 1.3;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.product-description {
  color: var(--text-secondary);
  font-size: var(--font-sm);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: var(--spacing-sm);
}

.product-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: auto;
}

.product-meta {
  font-size: var(--font-xs);
  color: var(--text-light);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.product-price {
  font-weight: 700;
  color: var(--accent-primary);
  font-size: var(--font-lg);
}

.view-button {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: var(--font-sm);
  color: var(--text-secondary);
  opacity: 0.8;
  transition: all var(--transition-fast);
}

.view-button:hover {
  color: var(--accent-primary);
  opacity: 1;
  transform: translateX(3px);
}

/* === Single Product Page === */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  margin: var(--spacing-lg);
  color: var(--text-secondary);
  font-size: var(--font-sm);
  font-weight: 500;
  transition: all var(--transition-fast);
}

.back-link:hover {
  color: var(--accent-primary);
  transform: translateX(-3px);
}

.product-container {
  display: flex;
  flex-direction: column;
  height: calc(100dvh - 64px - 60px); /* Subtract header and bottom nav */
  overflow: hidden;
}

/* Product gallery section */
.product-image-container.single {
  width: 100%;
  height: 40vh;
  max-height: 350px;
  position: relative;
  background-color: var(--bg-accent);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.product-image.single {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform 0.5s ease;
}

.product-image-container.single:hover .product-image.single {
  transform: scale(1.05);
}

/* Product info section - scrollable */
.product-info {
  flex: 1 1 auto; /* still allows growth */
  padding: var(--spacing-lg);
  overflow-y: visible; /* <-- allow full content display */
  display: flex;
  flex-direction: column;
  min-width: 0;
  box-sizing: border-box;
}

.product-info h1 {
  font-size: var(--font-2xl);
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  word-wrap: break-word; /* ensures long titles don't overflow */
  position: relative;
  display: inline-block;
}

.product-info h1::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 60px;
  height: 3px;
  background: var(--gradient-primary);
  border-radius: var(--border-radius-pill);
}

.product-description.single {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-lg);
  line-height: 1.6;
  font-size: var(--font-md);
}

/* Specs and details */
.spec-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
  background-color: var(--bg-accent);
  padding: var(--spacing-md);
  border-radius: var(--border-radius-lg);
}

.spec-item {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm);
  background-color: rgba(255, 255, 255, 0.6);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.spec-item:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.spec-label {
  font-size: var(--font-xs);
  color: var(--text-light);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.spec-value {
  font-size: var(--font-sm);
  color: var(--text-primary);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

/* Fixed action buttons at bottom */
.action-buttons {
  position: sticky;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  gap: var(--spacing-md);
  padding: var(--spacing-md) var(--spacing-lg);
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-top: 1px solid var(--border-light);
  z-index: 10;
  justify-content: space-between;
  flex-wrap: wrap;
}

.primary-button, .secondary-button {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md);
  border-radius: var(--border-radius-md);
  font-weight: 600;
  font-size: var(--font-md);
  flex: 1;
  transition: all var(--transition-normal);
  overflow: hidden;
  position: relative;
  isolation: isolate;
}

.primary-button {
  background: var(--gradient-primary);
  color: white;
  box-shadow: var(--shadow-md);
}

.primary-button::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.2);
  transform: translateX(-100%);
  transition: transform 0.3s ease;
  z-index: -1;
}

.primary-button:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.primary-button:hover::after {
  transform: translateX(0);
}

.secondary-button {
  background-color: var(--accent-tertiary);
  color: var(--text-primary);
}

.secondary-button:hover {
  background-color: #e5e5ea;
  transform: translateY(-3px);
  box-shadow: var(--shadow-sm);
}

/* Size selector for product page */
.size-selector {
  margin-bottom: var(--spacing-lg);
}

.size-selector-label {
  font-size: var(--font-sm);
  color: var(--text-light);
  margin-bottom: var(--spacing-sm);
  display: block;
}

.size-options {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.size-option {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--border-radius-sm);
  border: 1px solid var(--border-light);
  background-color: var(--bg-secondary);
  font-size: var(--font-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.size-option:hover {
  border-color: var(--accent-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.size-option.active {
  background: var(--gradient-primary);
  color: var(--bg-secondary);
  border-color: transparent;
  box-shadow: var(--shadow-md);
}

/* Product rating display */
.product-rating {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-md);
}

.rating-stars {
  color: #FFD700;
  display: flex;
}

.rating-count {
  font-size: var(--font-sm);
  color: var(--text-light);
}

/* === Footer === */
footer {
  background-color: var(--bg-secondary);
  padding: var(--spacing-lg);
  margin-top: 10vh;
  border-top: 1px solid var(--border-light);
}

.footer-content {
  display: none; /* Hide on mobile */
}

.footer-bottom {
  text-align: center;
  color: var(--text-light);
  font-size: var(--font-xs);
}

.footer-bottom p {
  margin: var(--spacing-xs) 0;
}

@media (min-width: 768px) {
  footer {
    padding: var(--spacing-2xl) var(--spacing-xl);
    margin-top: 10vh;
    border-top: 1px solid var(--border-light);
    background: linear-gradient(to bottom, transparent, rgba(248, 249, 250, 0.9));
  }

  .footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl) var(--spacing-2xl);
    max-width: 1200px;
    margin: 0 auto;              /* Center the content */
    padding-bottom: var(--spacing-xl);
  }
 
  .footer-column {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
  }

  .footer-column h3 {
    font-size: var(--font-lg);
    margin-bottom: var(--spacing-md);
    font-weight: 700;
    color: var(--text-primary);
    position: relative;
    padding-bottom: var(--spacing-sm);
  }
  
  .footer-column h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background: var(--gradient-primary);
    border-radius: var(--border-radius-pill);
  }

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

  .footer-links a {
    color: var(--text-secondary);
    font-size: var(--font-sm);
    text-decoration: none;
    transition: all var(--transition-fast);
    position: relative;
    width: fit-content;
    padding: var(--spacing-xs) 0;
  }

  .footer-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--accent-primary);
    transition: width var(--transition-normal);
  }

  .footer-links a:hover {
    color: var(--accent-primary);
    transform: translateX(3px);
  }
  
  .footer-links a:hover::after {
    width: 100%;
  }

  .footer-bottom {
    margin-top: var(--spacing-lg);   /* Add margin above the copyright */
    margin-bottom: var(--spacing-lg); /* Add margin below for spacing from bottom */
    text-align: center;
    color: var(--text-light);
    font-size: var(--font-xs);
  }
}

/* === Bottom Navigation === */
.bottom-navigation {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 60px;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  display: flex;
  justify-content: space-around;
  align-items: center;
  border-top: 1px solid var(--border-light);
  z-index: 100;
  box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.03);
}

.nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--spacing-sm) 0;
  color: var(--text-light);
  font-size: var(--font-xs);
  position: relative;
  transition: all var(--transition-normal);
}

.nav-item.active {
  color: var(--accent-primary);
}

.nav-item::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 3px;
  background: var(--gradient-primary);
  border-radius: 3px 3px 0 0;
  transition: width var(--transition-normal);
}

.nav-item.active::after {
  width: 20px;
}

.nav-item svg {
  margin-bottom: var(--spacing-xs);
  transition: transform var(--transition-fast);
}

.nav-item:hover svg {
  transform: translateY(-2px);
}

@media (min-width: 768px) {
  .bottom-navigation {
    display: none;
  }
}

/* === Cart Page & Checkout === */
.cart-items {
  padding: var(--spacing-lg);
}

.cart-item {
  display: flex;
  gap: var(--spacing-md);
  padding: var(--spacing-md) 0;
  border-bottom: 1px solid var(--border-light);
  transition: all var(--transition-normal);
}

.cart-item:hover {
  background-color: var(--bg-accent);
  transform: translateX(5px);
  border-radius: var(--border-radius-md);
  padding-left: var(--spacing-md);
}

.cart-item-image {
  width: 80px;
  height: 80px;
  border-radius: var(--border-radius-md);
  background-color: var(--bg-accent);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.cart-item-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

.cart-item:hover .cart-item-image img {
  transform: scale(1.05);
}

.cart-item-details {
  flex: 1;
}

.cart-item-title {
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
}

.cart-item-price {
  font-weight: 700;
  color: var(--accent-primary);
}

.cart-item-meta {
  font-size: var(--font-xs);
  color: var(--text-light);
  margin-bottom: var(--spacing-xs);
}

.cart-item-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.quantity-selector {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.quantity-button {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background-color: var(--accent-tertiary);
  color: var(--text-primary);
  transition: all var(--transition-fast);
}

.quantity-button:hover {
  background-color: var(--accent-primary);
  color: white;
  transform: scale(1.1);
}

.cart-summary {
  background-color: var(--bg-secondary);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
  box-shadow: var(--shadow-lg);
  margin-top: var(--spacing-lg);
}

.summary-row {
  display: flex;
  justify-content: space-between;
  padding: var(--spacing-sm) 0;
  font-size: var(--font-sm);
}

.summary-row.total {
  font-weight: 700;
  font-size: var(--font-lg);
  padding-top: var(--spacing-md);
  margin-top: var(--spacing-sm);
  border-top: 1px solid var(--border-light);
  color: var(--accent-primary);
}

.checkout-button {
  display: block;
  width: 100%;
  padding: var(--spacing-md);
  margin-top: var(--spacing-md);
  background: var(--gradient-primary);
  color: white;
  border-radius: var(--border-radius-md);
  font-weight: 600;
  text-align: center;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.checkout-button::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.2);
  transform: translateX(-100%);
  transition: transform 0.3s ease;
}

.checkout-button:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.checkout-button:hover::after {
  transform: translateX(0);
}

/* === Media Queries === */
@media (min-width: 768px) {
  .product-grid {
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: var(--spacing-lg);
    padding: 0 var(--spacing-xl);
  }
  
  .product-image-container {
    aspect-ratio: 1 / 1;
  }
   
  .product-container {
    flex-direction: row;
    max-width: 1200px;
    margin: 0 auto;
    height: auto;
    padding: 0 var(--spacing-xl);
  }
  
  .product-image-container.single {
    width: 50%;
    height: calc(100dvh - 120px);
    max-height: none;
  }

  .product-image-container img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 5px;
  }
  
  .product-info {
    width: 50%;
    max-height: calc(100dvh - 120px);
    padding-left: var(--spacing-xl);
  }
  
  .action-buttons {
    position: static;
    border-top: none;
    padding: var(--spacing-lg) 0;
  }
}

@media (min-width: 1024px) {
  .main-content {
    max-width: 1200px;
    margin: 0 auto;
  }
  
  .section-header {
    padding: var(--spacing-xl) var(--spacing-xl) var(--spacing-lg);
  }
  
  .section-title {
    font-size: var(--font-2xl);
  }
  
  .product-grid {
    padding: 0 var(--spacing-xl);
    gap: var(--spacing-xl);
  } 
}