/* ============================================
   ECOVESTURE LLC - Eco-Friendly Design System
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&family=Inter:wght@300;400;500;600&display=swap');

/* ============================================
   CSS Custom Properties (Design Tokens)
   ============================================ */

:root {
  /* Eco-Friendly Color Palette */
  --color-primary: #2d5016;
  --color-primary-light: #4a7c2c;
  --color-primary-dark: #1a3009;
  --color-secondary: #8b7355;
  --color-secondary-light: #a68968;
  --color-accent: #7ca982;
  --color-accent-light: #a8d5ae;
  
  /* Earth Tones */
  --color-earth-brown: #6b5744;
  --color-earth-green: #5a7247;
  --color-earth-beige: #d4c4a8;
  --color-earth-sand: #c9b99b;
  
  /* Neutrals */
  --color-bg-light: #faf9f7;
  --color-bg-white: #ffffff;
  --color-bg-cream: #f5f3ed;
  --color-text-primary: #2c2c2c;
  --color-text-secondary: #666666;
  --color-text-light: #999999;
  
  /* UI Colors */
  --color-success: #4a7c2c;
  --color-error: #c44536;
  --color-warning: #d4a574;
  --color-info: #7ca982;
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #2d5016 0%, #4a7c2c 100%);
  --gradient-secondary: linear-gradient(135deg, #8b7355 0%, #a68968 100%);
  --gradient-hero: linear-gradient(135deg, rgba(45, 80, 22, 0.95) 0%, rgba(74, 124, 44, 0.9) 100%);
  --gradient-card: linear-gradient(145deg, rgba(255, 255, 255, 0.9), rgba(250, 249, 247, 0.95));
  
  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(45, 80, 22, 0.08);
  --shadow-md: 0 4px 16px rgba(45, 80, 22, 0.12);
  --shadow-lg: 0 8px 32px rgba(45, 80, 22, 0.16);
  --shadow-xl: 0 16px 48px rgba(45, 80, 22, 0.2);
  
  /* Typography */
  --font-primary: 'Outfit', sans-serif;
  --font-secondary: 'Inter', sans-serif;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  
  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 999px;
  
  /* Transitions */
  --transition-fast: 200ms ease;
  --transition-base: 300ms ease;
  --transition-slow: 500ms ease;
  
  /* Z-index */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal: 1040;
  --z-tooltip: 1050;
}

/* Dark Mode Variables */
[data-theme="dark"] {
  --color-bg-light: #1a1a1a;
  --color-bg-white: #2c2c2c;
  --color-bg-cream: #252525;
  --color-text-primary: #e8e8e8;
  --color-text-secondary: #b8b8b8;
  --color-text-light: #888888;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
  --gradient-card: linear-gradient(145deg, rgba(44, 44, 44, 0.9), rgba(37, 37, 37, 0.95));
}

/* ============================================
   Reset & Base Styles
   ============================================ */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-secondary);
  color: var(--color-text-primary);
  background-color: var(--color-bg-light);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background-color var(--transition-base), color var(--transition-base);
}

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

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

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

ul, ol {
  list-style: none;
}

/* ============================================
   Typography
   ============================================ */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-primary);
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
}

h4 {
  font-size: clamp(1.25rem, 2.5vw, 1.5rem);
}

p {
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-secondary);
}

/* ============================================
   Layout Components
   ============================================ */

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.section {
  padding: var(--spacing-2xl) 0;
}

.section-title {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.section-title h2 {
  position: relative;
  display: inline-block;
  padding-bottom: var(--spacing-sm);
}

.section-title h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
}

/* ============================================
   Header & Navigation
   ============================================ */

.header {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
}

[data-theme="dark"] .header {
  background: rgba(44, 44, 44, 0.95);
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-sm) var(--spacing-md);
}

.logo {
  font-family: var(--font-primary);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-primary);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: var(--gradient-primary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.5rem;
}

.nav-menu {
  display: flex;
  gap: var(--spacing-lg);
  align-items: center;
}

.nav-link {
  position: relative;
  font-weight: 500;
  color: var(--color-text-primary);
  padding: var(--spacing-xs) 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: width var(--transition-base);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

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

.icon-btn {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  background: transparent;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  color: var(--color-text-primary);
  position: relative;
}

.icon-btn:hover {
  background: var(--color-bg-cream);
  transform: scale(1.05);
}

.cart-badge {
  position: absolute;
  top: 8px;
  right: 8px;
  background: var(--gradient-primary);
  color: white;
  font-size: 0.7rem;
  font-weight: 600;
  padding: 2px 6px;
  border-radius: var(--radius-full);
  min-width: 18px;
  text-align: center;
}

.mobile-toggle {
  display: none;
}

/* ============================================
   Buttons
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  padding: 0.875rem 1.75rem;
  font-weight: 600;
  font-size: 1rem;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-base);
  text-align: center;
  white-space: nowrap;
}

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

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

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

.btn-secondary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn-outline:hover {
  background: var(--color-primary);
  color: white;
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-primary);
}

.btn-ghost:hover {
  background: var(--color-bg-cream);
}

.btn-sm {
  padding: 0.625rem 1.25rem;
  font-size: 0.875rem;
}

.btn-lg {
  padding: 1.125rem 2.25rem;
  font-size: 1.125rem;
}

/* ============================================
   Hero Section
   ============================================ */

.hero {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  background: var(--gradient-hero);
  color: white;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 600"><path d="M0,300 Q300,200 600,300 T1200,300 L1200,600 L0,600 Z" fill="rgba(255,255,255,0.05)"/></svg>');
  background-size: cover;
  background-position: bottom;
  opacity: 0.3;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 700px;
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  margin-bottom: var(--spacing-md);
  animation: fadeInUp 0.8s ease;
}

.hero-subtitle {
  font-size: clamp(1.125rem, 2vw, 1.5rem);
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--spacing-xl);
  animation: fadeInUp 0.8s ease 0.2s backwards;
}

.hero-actions {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease 0.4s backwards;
}

/* ============================================
   Product Cards
   ============================================ */

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--spacing-lg);
}

.product-card {
  background: var(--gradient-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  position: relative;
}

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

.product-image-container {
  position: relative;
  width: 100%;
  padding-top: 100%;
  overflow: hidden;
  background: var(--color-bg-cream);
}

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

.product-card:hover .product-image {
  transform: scale(1.08);
}

.product-badge {
  position: absolute;
  top: var(--spacing-sm);
  right: var(--spacing-sm);
  background: var(--gradient-primary);
  color: white;
  padding: 0.375rem 0.875rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  z-index: 2;
}

.product-info {
  padding: var(--spacing-md);
}

.product-category {
  font-size: 0.875rem;
  color: var(--color-accent);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--spacing-xs);
}

.product-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-xs);
  line-height: 1.4;
}

.product-description {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-md);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.product-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--spacing-sm);
}

.product-price {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
}

.product-actions {
  display: flex;
  gap: var(--spacing-xs);
}

/* ============================================
   Categories Section
   ============================================ */

.categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-md);
}

.category-card {
  position: relative;
  height: 300px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
}

.category-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.category-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.category-card:hover .category-image {
  transform: scale(1.1);
}

.category-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(to top, rgba(45, 80, 22, 0.9), transparent);
  display: flex;
  align-items: flex-end;
  padding: var(--spacing-lg);
}

.category-title {
  color: white;
  font-size: 1.75rem;
  font-weight: 600;
}

/* ============================================
   Features Section
   ============================================ */

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
}

.feature-card {
  text-align: center;
  padding: var(--spacing-xl);
  background: var(--gradient-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.feature-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--spacing-md);
  background: var(--gradient-primary);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  color: white;
}

.feature-title {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-primary);
}

.feature-description {
  color: var(--color-text-secondary);
}

/* ============================================
   Footer
   ============================================ */

.footer {
  background: var(--color-primary-dark);
  color: white;
  padding: var(--spacing-2xl) 0 var(--spacing-md);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.footer-section h4 {
  color: var(--color-accent-light);
  margin-bottom: var(--spacing-md);
}

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

.footer-link {
  color: rgba(255, 255, 255, 0.8);
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: white;
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.7);
}

/* ============================================
   Shopping Cart
   ============================================ */

.cart-sidebar {
  position: fixed;
  top: 0;
  right: -100%;
  width: 100%;
  max-width: 450px;
  height: 100vh;
  background: var(--color-bg-white);
  box-shadow: var(--shadow-xl);
  z-index: var(--z-modal);
  transition: right var(--transition-base);
  display: flex;
  flex-direction: column;
}

.cart-sidebar.active {
  right: 0;
}

.cart-header {
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--color-bg-cream);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.cart-body {
  flex: 1;
  overflow-y: auto;
  padding: var(--spacing-md);
}

.cart-item {
  display: flex;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  background: var(--gradient-card);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-md);
}

.cart-item-image {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-sm);
  object-fit: cover;
}

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

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

.cart-item-price {
  color: var(--color-primary);
  font-weight: 600;
}

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

.quantity-btn {
  width: 30px;
  height: 30px;
  border-radius: var(--radius-sm);
  background: var(--color-bg-cream);
  display: flex;
  align-items: center;
  justify-content: center;
}

.cart-footer {
  padding: var(--spacing-lg);
  border-top: 1px solid var(--color-bg-cream);
}

.cart-total {
  display: flex;
  justify-content: space-between;
  margin-bottom: var(--spacing-md);
  font-size: 1.25rem;
  font-weight: 600;
}

.cart-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: calc(var(--z-modal) - 1);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
}

.cart-overlay.active {
  opacity: 1;
  pointer-events: all;
}

/* ============================================
   Forms
   ============================================ */

.form-group {
  margin-bottom: var(--spacing-md);
}

.form-label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: 600;
  color: var(--color-text-primary);
}

.form-input,
.form-textarea {
  width: 100%;
  padding: 0.875rem;
  border: 2px solid var(--color-bg-cream);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 1rem;
  color: var(--color-text-primary);
  background: var(--color-bg-white);
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(45, 80, 22, 0.1);
}

.form-textarea {
  min-height: 150px;
  resize: vertical;
}

/* ============================================
   Utilities
   ============================================ */

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

.text-primary {
  color: var(--color-primary);
}

.text-accent {
  color: var(--color-accent);
}

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }

.hidden {
  display: none !important;
}

/* ============================================
   Animations
   ============================================ */

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes slideInRight {
  from {
    transform: translateX(100%);
  }
  to {
    transform: translateX(0);
  }
}

/* ============================================
   Responsive Design
   ============================================ */

@media (max-width: 992px) {
  .nav-menu {
    position: fixed;
    top: 72px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 72px);
    background: var(--color-bg-white);
    flex-direction: column;
    padding: var(--spacing-xl);
    transition: left var(--transition-base);
    box-shadow: var(--shadow-lg);
  }
  
  .nav-menu.active {
    left: 0;
  }
  
  .mobile-toggle {
    display: flex;
  }
  
  .hero-actions {
    flex-direction: column;
  }
  
  .btn {
    width: 100%;
  }
}

@media (max-width: 768px) {
  .products-grid {
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: var(--spacing-md);
  }
  
  .categories-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .products-grid {
    grid-template-columns: 1fr;
  }
  
  .cart-sidebar {
    max-width: 100%;
  }
}