/* Eko Eliminator - Professional Minimalist Design v3.0 */
/* Inspired by premium eco-friendly brands */

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

:root {
  /* Primary - Deep Forest Green */
  --primary: #1a4d2e;
  --primary-dark: #0f2e1b;
  --primary-light: #2d6a44;
  
  /* Accent - Sage Green */
  --accent: #5f8d4e;
  --accent-light: #7fb069;
  
  /* Neutral - Warm Grays */
  --gray-50: #fafaf9;
  --gray-100: #f5f5f4;
  --gray-200: #e7e5e4;
  --gray-300: #d6d3d1;
  --gray-400: #a8a29e;
  --gray-500: #78716c;
  --gray-600: #57534e;
  --gray-700: #44403c;
  --gray-800: #292524;
  --gray-900: #1c1917;
  
  /* Backgrounds */
  --bg-primary: #fafaf9;
  --bg-secondary: #f5f5f4;
  --bg-dark: #1c1917;
  
  /* Text */
  --text-primary: #1c1917;
  --text-secondary: #57534e;
  --text-muted: #78716c;
  --text-light: #fafaf9;
  
  /* Shadows - Subtle */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  
  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;
  
  /* Border Radius - Minimal */
  --radius-sm: 0.25rem;
  --radius: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  
  /* Transitions */
  --transition: 200ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* Base Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  font-weight: 400;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: inherit;
  text-decoration: none;
}

/* Container */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

@media (min-width: 640px) {
  .container {
    padding: 0 var(--space-lg);
  }
}

/* Header */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(250, 250, 249, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--gray-200);
}

header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 72px;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: -0.02em;
}

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

nav a {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 0.5rem 0;
  position: relative;
  transition: color var(--transition);
}

nav a:hover {
  color: var(--primary);
}

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

.cart-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--gray-100);
  border-radius: var(--radius);
  font-weight: 500;
  transition: background var(--transition);
}

.cart-link:hover {
  background: var(--gray-200);
}

.cart-count {
  background: var(--primary);
  color: white;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.125rem 0.5rem;
  border-radius: 9999px;
  min-width: 1.25rem;
  text-align: center;
}

/* Hero */
.hero {
  padding: calc(72px + var(--space-3xl)) 0 var(--space-3xl);
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--gray-200);
}

.hero-content {
  max-width: 720px;
}

.hero h1 {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.1;
  color: var(--text-primary);
  margin-bottom: var(--space-md);
  letter-spacing: -0.02em;
}

.hero p {
  font-size: 1.25rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-lg);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 1.5rem;
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius);
  transition: all var(--transition);
  cursor: pointer;
  border: none;
  white-space: nowrap;
}

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

.btn-primary:hover {
  background: var(--primary-dark);
}

.btn-secondary {
  background: transparent;
  color: var(--primary);
  border: 1px solid var(--gray-300);
}

.btn-secondary:hover {
  border-color: var(--primary);
  background: var(--gray-50);
}

.btn-outline {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--gray-300);
}

.btn-outline:hover {
  border-color: var(--gray-400);
  color: var(--text-primary);
}

.btn-sm {
  padding: 0.625rem 1rem;
  font-size: 0.875rem;
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1rem;
}

/* Section Header */
.section-header {
  margin-bottom: var(--space-xl);
}

.section-header h2 {
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  letter-spacing: -0.01em;
}

.section-header p {
  color: var(--text-secondary);
  font-size: 1.0625rem;
}

/* Categories */
.categories {
  padding: var(--space-3xl) 0;
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--space-md);
}

.category-card {
  padding: var(--space-lg);
  background: white;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  transition: all var(--transition);
}

.category-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-md);
}

.category-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-secondary);
  border-radius: var(--radius);
  margin-bottom: var(--space-sm);
  font-size: 1.5rem;
}

.category-card h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.category-card p {
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* Products */
.products-section {
  padding: var(--space-3xl) 0;
  background: var(--bg-secondary);
}

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

.product-card {
  background: white;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition);
}

.product-card:hover {
  border-color: var(--gray-300);
  box-shadow: var(--shadow-md);
}

.product-image {
  aspect-ratio: 4/3;
  background: var(--gray-100);
  position: relative;
  overflow: hidden;
}

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

.product-card:hover .product-image img {
  transform: scale(1.03);
}

.product-badge {
  position: absolute;
  top: var(--space-sm);
  left: var(--space-sm);
  background: var(--primary);
  color: white;
  padding: 0.25rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  text-transform: uppercase;
  letter-spacing: 0.025em;
}

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

.product-category {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.025em;
  margin-bottom: 0.5rem;
}

.product-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  line-height: 1.4;
}

.product-title:hover {
  color: var(--primary);
}

.product-description {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-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;
  padding-top: var(--space-sm);
  border-top: 1px solid var(--gray-100);
}

.product-price {
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
}

.product-price .current {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
}

.product-price .old {
  font-size: 0.875rem;
  color: var(--text-muted);
  text-decoration: line-through;
}

/* Loading States */
.loading-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 400px;
  gap: var(--space-md);
}

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--gray-200);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.skeleton {
  background: linear-gradient(90deg, var(--gray-100) 25%, var(--gray-200) 50%, var(--gray-100) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius);
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* Empty States */
.empty-state {
  text-align: center;
  padding: var(--space-2xl) var(--space-lg);
  background: white;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
}

.empty-state h2 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.empty-state p {
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
}

/* Footer */
footer {
  background: var(--bg-dark);
  color: var(--gray-400);
  padding: var(--space-2xl) 0 var(--space-lg);
  margin-top: var(--space-3xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.footer-section h4 {
  color: white;
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: var(--space-md);
}

.footer-section p {
  line-height: 1.7;
  margin-bottom: var(--space-sm);
}

.footer-section a {
  display: block;
  padding: 0.25rem 0;
  transition: color var(--transition);
}

.footer-section a:hover {
  color: white;
}

.footer-bottom {
  text-align: center;
  padding-top: var(--space-lg);
  border-top: 1px solid var(--gray-800);
  font-size: 0.875rem;
}

/* Responsive */
@media (max-width: 768px) {
  nav a:not(.cart-link) {
    display: none;
  }
  
  .hero h1 {
    font-size: 2rem;
  }
  
  .hero p {
    font-size: 1.125rem;
  }
  
  .category-grid,
  .product-grid {
    grid-template-columns: 1fr;
  }
}

/* Utility */
.text-center { text-align: center; }
.mt-4 { margin-top: 1rem; }
.mt-8 { margin-top: 2rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-8 { margin-bottom: 2rem; }