:root {
  --primary-color: #1a2a3a; /* Deep navy */
  --accent-color: #2b5b4e; /* Forest green */
  --bg-color: #f7f8f6;
  --white: #ffffff;
  --text-main: #172026;
  --text-secondary: #5f6b6d;
  --border-color: #e0e4e5;
  --error-color: #d32f2f;
  --success-color: #2e7d32;
  --border-radius: 8px;
  --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
  --transition: all 0.3s ease;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-main);
  line-height: 1.6;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

main {
  flex: 1;
}

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

ul {
  list-style: none;
}

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

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
header {
  background-color: var(--white);
  box-shadow: var(--box-shadow);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
}

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

.nav-links {
  display: flex;
  gap: 30px;
}

.nav-links a {
  font-weight: 500;
  color: var(--text-main);
  transition: var(--transition);
}

.nav-links a:hover {
  color: var(--accent-color);
}

.cart-icon {
  position: relative;
  display: flex;
  align-items: center;
  font-weight: 500;
}

.cart-badge {
  background-color: var(--accent-color);
  color: var(--white);
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: 50%;
  padding: 2px 6px;
  margin-left: 5px;
}

.burger-menu {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--primary-color);
}

/* Buttons */
.btn {
  display: inline-block;
  background-color: var(--primary-color);
  color: var(--white);
  padding: 12px 24px;
  border: none;
  border-radius: var(--border-radius);
  font-weight: 600;
  cursor: pointer;
  text-align: center;
  transition: var(--transition);
}

.btn:hover {
  background-color: var(--accent-color);
}

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

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

.btn-danger {
  background-color: var(--error-color);
}

.btn-danger:hover {
  background-color: #b71c1c;
}

/* Hero Section */
.hero {
  background-color: var(--white);
  padding: 60px 0;
  text-align: center;
}

.hero h1 {
  font-size: 2.5rem;
  color: var(--primary-color);
  margin-bottom: 20px;
}

.hero p {
  font-size: 1.2rem;
  color: var(--text-secondary);
  max-width: 800px;
  margin: 0 auto 30px;
}

.hero .hero-actions {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-bottom: 40px;
}

.hero img {
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  margin: 0 auto;
}

/* Sections General */
section {
  padding: 60px 0;
}

.section-title {
  text-align: center;
  font-size: 2rem;
  color: var(--primary-color);
  margin-bottom: 40px;
}

/* Grid Layouts */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
}

/* Cards */
.card {
  background-color: var(--white);
  border-radius: var(--border-radius);
  padding: 30px;
  text-align: center;
  box-shadow: var(--box-shadow);
}

.card h3 {
  color: var(--primary-color);
  margin-bottom: 15px;
}

/* Product Card */
.product-card {
  background-color: var(--white);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--box-shadow);
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}

.product-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 15px rgba(0, 0, 0, 0.1);
}

.product-img {
  width: 100%;
  height: 250px;
  object-fit: cover;
}

.product-info {
  padding: 20px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.product-category {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 5px;
}

.product-name {
  font-size: 1.2rem;
  color: var(--primary-color);
  margin-bottom: 10px;
}

.product-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 15px;
  flex: 1;
}

.product-price {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 15px;
}

/* Filter */
.category-filter {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 40px;
}

.filter-btn {
  background: var(--white);
  border: 1px solid var(--border-color);
  padding: 8px 16px;
  border-radius: 20px;
  cursor: pointer;
  transition: var(--transition);
  color: var(--text-main);
}

.filter-btn.active, .filter-btn:hover {
  background: var(--primary-color);
  color: var(--white);
  border-color: var(--primary-color);
}

/* Cart Page */
.cart-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--white);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--box-shadow);
  margin-bottom: 30px;
}

.cart-table th, .cart-table td {
  padding: 15px;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.cart-table th {
  background-color: var(--bg-color);
  color: var(--primary-color);
}

.cart-item-img {
  width: 60px;
  height: 60px;
  object-fit: cover;
  border-radius: 4px;
}

.qty-input {
  width: 60px;
  padding: 5px;
  text-align: center;
  border: 1px solid var(--border-color);
  border-radius: 4px;
}

.cart-summary {
  background: var(--white);
  padding: 30px;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  text-align: right;
  margin-bottom: 40px;
}

.cart-summary h3 {
  font-size: 1.5rem;
  color: var(--primary-color);
  margin-bottom: 15px;
}

/* Forms */
.form-group {
  margin-bottom: 20px;
  text-align: left;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
}

.form-control {
  width: 100%;
  padding: 12px;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  font-family: inherit;
  font-size: 1rem;
}

.form-control:focus {
  outline: none;
  border-color: var(--accent-color);
}

.checkbox-group {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.checkbox-group input {
  margin-top: 5px;
}

.checkbox-group label {
  font-weight: 400;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.form-error {
  color: var(--error-color);
  font-size: 0.85rem;
  margin-top: 5px;
  display: none;
}

/* Footer */
footer {
  background-color: var(--primary-color);
  color: var(--white);
  padding: 60px 0 20px;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  margin-bottom: 40px;
}

.footer-col h4 {
  font-size: 1.2rem;
  margin-bottom: 20px;
  color: var(--white);
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul li a {
  color: #b0bec5;
  transition: var(--transition);
}

.footer-col ul li a:hover {
  color: var(--white);
}

.footer-bottom {
  text-align: center;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: #b0bec5;
  font-size: 0.9rem;
}

/* Cookie Banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background-color: var(--white);
  box-shadow: 0 -4px 10px rgba(0, 0, 0, 0.1);
  padding: 20px;
  z-index: 1000;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  transform: translateY(100%);
  transition: transform 0.3s ease-in-out;
}

.cookie-banner.show {
  transform: translateY(0);
}

.cookie-text {
  flex: 1;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.cookie-actions {
  display: flex;
  gap: 10px;
}

/* Typography Content (Legal pages, About) */
.content-page {
  background: var(--white);
  padding: 40px;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  margin: 40px auto;
  max-width: 900px;
}

.content-page h1 {
  color: var(--primary-color);
  margin-bottom: 30px;
  border-bottom: 2px solid var(--bg-color);
  padding-bottom: 10px;
}

.content-page h2 {
  color: var(--primary-color);
  margin: 30px 0 15px;
}

.content-page p {
  margin-bottom: 15px;
  color: var(--text-secondary);
}

.content-page ul {
  list-style: disc;
  margin-left: 20px;
  margin-bottom: 20px;
  color: var(--text-secondary);
}

/* Responsive */
@media (max-width: 1024px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .burger-menu {
    display: block;
  }
  
  .nav-links {
    display: none;
    position: absolute;
    top: 70px;
    left: 0;
    width: 100%;
    background: var(--white);
    flex-direction: column;
    padding: 20px;
    box-shadow: var(--box-shadow);
    gap: 15px;
  }
  
  .nav-links.active {
    display: flex;
  }
  
  .grid-3, .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .hero h1 {
    font-size: 2rem;
  }
  
  .cookie-banner {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .grid-3, .grid-4, .footer-grid {
    grid-template-columns: 1fr;
  }
  
  .hero .hero-actions {
    flex-direction: column;
  }
  
  .cart-table {
    display: block;
    overflow-x: auto;
  }
}