:root {
  --primary-color: #2F6146; /* A refined nature green replacing the old #00CC66 */
  --primary-hover: #1e4530;
  --bg-color: #f9fdfa;
  --text-color: #334155;
  --heading-color: #0f172a;
  --white: #ffffff;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --border-color: #cbd5e1;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

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

*:focus-visible {
  outline: 3px solid var(--primary-color);
  outline-offset: 2px;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-color);
  line-height: 1.6;
}

/* Typography */
h1, h2, h3, h4 {
  color: var(--heading-color);
  font-weight: 700;
  margin-bottom: 1rem;
}

h1 {
  font-size: 2.5rem;
  line-height: 1.2;
}

h2 {
  font-size: 2rem;
}

p {
  margin-bottom: 1rem;
}

ul, ol {
  padding-left: 1.5rem;
  margin-bottom: 1rem;
}

a {
  color: var(--primary-color);
  text-decoration: none;
  transition: color 0.2s;
}

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

/* Layout */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.main-content {
  padding: 2.5rem 0 4rem 0;
  min-height: calc(100vh - 200px);
}

/* Header & Glassmorphism Nav */
.site-header {
  position: sticky;
  top: 0;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  z-index: 50;
  padding: 1rem 0;
}

.nav-container {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary-color);
  letter-spacing: -0.5px;
  order: 1;
}

.mobile-menu-btn {
  display: none; /* Hidden by default globally */
  background: none;
  border: none;
  color: var(--text-color);
  cursor: pointer;
  padding: 0.5rem;
  border-radius: 4px;
}

nav {
  order: 3;
  width: 100%;
}

.nav-links {
  display: flex;
  justify-content: center;
  gap: 2rem;
  list-style: none;
  padding-left: 0;
  margin-bottom: 0;
  width: 100%;
  margin-top: 1rem;
}

.nav-links a {
  color: var(--text-color);
  font-weight: 500;
  padding: 0.5rem 0;
  position: relative;
  transition: color 0.3s ease;
}

.nav-links a::after {
  content: '';
  position: absolute;
  width: 0%;
  height: 2px;
  bottom: 0px;
  left: 0;
  background-color: var(--primary-color);
  transition: width 0.3s cubic-bezier(0.25, 1, 0.5, 1);
}

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

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

/* Cart Button */
.cart-trigger {
  background: var(--white);
  border: 1px solid var(--border-color);
  padding: 0.5rem 1.25rem;
  border-radius: 9999px;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  font-weight: 600;
  color: var(--text-color);
  transition: all 0.3s cubic-bezier(0.25, 1, 0.5, 1);
  box-shadow: var(--shadow-sm);
  order: 2;
}

.cart-trigger:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--primary-color);
  color: var(--primary-color);
  transform: translateY(-1px);
}

.cart-badge {
  background: #ef4444; /* High visibility red for notifications */
  color: var(--white);
  font-size: 0.8rem;
  font-weight: 700;
  min-width: 1.5rem;
  text-align: center;
  padding: 0.1rem 0.5rem;
  border-radius: 999px;
}

/* Hero Section */
.hero {
  display: flex;
  align-items: center;
  gap: 3rem;
  margin-bottom: 4rem;
}

.hero-text {
  flex: 1;
}

.hero-image {
  flex: 1;
  text-align: right;
}

.hero-image img {
  max-width: 100%;
  border-radius: 16px;
  box-shadow: var(--shadow-lg);
  object-fit: cover;
}

/* Footer */
.site-footer {
  background: var(--heading-color);
  color: var(--white);
  padding: 3rem 0;
  text-align: center;
}

.site-footer p {
  color: #a1a1aa; /* Improved contrast ratio against dark background */
  font-size: 0.875rem;
}

/* Products Components */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.product-card {
  background: var(--white);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: 1px solid var(--gray-100);
}

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

.product-img-wrapper {
  height: 250px;
  overflow: hidden;
  background: var(--gray-100);
  display: flex;
  align-items: center;
  justify-content: center;
}

.product-img-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

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

.product-details {
  padding: 1.5rem;
}

.product-title {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.product-price {
  font-weight: 700;
  color: var(--primary-color);
  font-size: 1.25rem;
  margin-bottom: 1rem;
}

.btn {
  display: inline-block;
  background: var(--primary-color);
  color: var(--white);
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s;
  width: 100%;
  text-align: center;
}

.btn:hover {
  background: var(--primary-hover);
  color: white;
}
.btn:active {
  transform: scale(0.98);
}

/* Forms */
.form-group {
  margin-bottom: 1.5rem;
}
.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.5rem;
}
.form-control {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  font-family: inherit;
}
.form-control:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(47, 97, 70, 0.1);
}

/* Cart Overlay/Sidebar */
.cart-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.5);
  z-index: 100;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

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

.cart-sidebar {
  position: fixed;
  top: 0; right: 0; bottom: 0;
  width: 100%;
  max-width: 400px;
  background: var(--white);
  z-index: 101;
  transform: translateX(100%);
  transition: transform 0.3s ease;
  display: flex;
  flex-direction: column;
  box-shadow: -5px 0 15px rgba(0,0,0,0.1);
  overflow-y: auto;
}

.cart-sidebar.active {
  transform: translateX(0);
}

.cart-header {
  padding: 1.5rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  background: var(--white);
  z-index: 10;
  flex-shrink: 0;
}

.cart-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-color);
}

.cart-items {
  flex: 1 0 auto;
  padding: 1.5rem;
}

.cart-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 1rem;
  margin-bottom: 1rem;
  border-bottom: 1px solid var(--gray-100);
}

.cart-item-info h4 {
  margin: 0 0 0.25rem 0;
  font-size: 1rem;
}

.cart-item-remove {
  background: none;
  border: none;
  color: #ef4444;
  cursor: pointer;
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: underline;
  text-decoration-color: transparent;
  padding: 0.25rem 0.5rem;
  border-radius: 6px;
  transition: all 0.2s;
}

.cart-item-remove:hover {
  background-color: #fef2f2;
  text-decoration-color: #ef4444;
}

.cart-footer {
  padding: 1.5rem;
  border-top: 1px solid var(--border-color);
  background: var(--gray-100);
  flex-shrink: 0;
  margin-top: auto;
}

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

@media (max-width: 768px) {
  .container {
    padding: 0 1.5rem !important;
  }
  body {
    overflow-x: hidden;
  }
  .main-content {
    padding: 3rem 0 3rem 0;
  }
  h1 {
    margin-top: 1rem;
  }
  .hero {
    flex-direction: column;
  }
  .site-header {
    transition: padding 0.3s ease;
  }
  .site-header.scrolled {
    padding: 0.5rem 0;
    box-shadow: var(--shadow-sm);
  }
  .nav-container {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
  }
  .logo {
    order: 1;
  }
  .mobile-menu-btn {
    order: 2;
    margin-right: auto; /* Force space between hamburger and cart */
  }
  .cart-trigger {
    order: 3;
    width: auto;
    padding: 0.5rem;
    border-radius: 50%;
    position: relative;
  }
  nav {
    order: 4;
    width: 100%;
  }
  .nav-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.75rem;
    width: 100%;
    max-height: 200px;
    opacity: 1;
    overflow: hidden;
    transition: max-height 0.3s ease, opacity 0.3s ease, margin 0.3s ease, padding 0.3s ease;
    margin-top: 0.5rem;
  }
  
  /* State Control: When user scrolls down horizontally */
  .site-header.scrolled .nav-links {
    max-height: 0;
    opacity: 0;
    margin-top: 0;
  }
  .site-header.scrolled .mobile-menu-btn {
    display: flex; /* Reveal the hamburger exclusively when scrolled */
  }
  
  /* State Control: When user clicks hamburger */
  .site-header.scrolled .nav-links.active-menu {
    max-height: 300px;
    opacity: 1;
    margin-top: 1rem;
    padding-top: 0.5rem;
    border-top: 1px solid var(--border-color);
  }
  .site-header.scrolled .mobile-menu-btn.active-menu svg {
    color: var(--primary-color); /* Highlight active state */
  }
  
  .nav-links a {
    font-size: 0.95rem;
    padding: 0.25rem 0.5rem;
  }
  .cart-text-label {
    display: none;
  }
  .cart-badge {
    position: absolute;
    top: -4px;
    right: -4px;
    padding: 0.1rem 0.3rem;
  }
}

/* Lightbox styles */
.lightbox {
  position: fixed;
  top: 0; left: 0; width: 100%; height: 100%;
  background: rgba(0, 0, 0, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}
.lightbox.active {
  opacity: 1;
  pointer-events: auto;
}
.lightbox img {
  max-width: 90%;
  max-height: 90%;
  border-radius: 8px;
  box-shadow: var(--shadow-lg);
}
.lightbox-close {
  position: absolute;
  top: 2rem;
  right: 2rem;
  color: white;
  font-size: 2rem;
  cursor: pointer;
  background: none;
  border: none;
}