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

:root {
  --primary: #2563eb;
  --secondary: #1e40af;
  --accent: #ec4899;
  --dark: #1f2937;
  --light: #f3f4f6;
  --success: #10b981;
  --border: #e5e7eb;
}

body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: var(--dark);
  background-color: #fff;
}

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

/* Header & Navigation */
header {
  background-color: var(--dark);
  color: white;
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

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

.nav-links {
  display: flex;
  list-style: none;
  gap: 2rem;
}

.nav-links a {
  color: white;
  text-decoration: none;
  transition: color 0.3s;
}

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

/* Breadcrumb */
.breadcrumb {
  background-color: var(--light);
  padding: 1rem 0;
  margin-bottom: 2rem;
  font-size: 0.95rem;
}

.breadcrumb a {
  color: var(--primary);
  text-decoration: none;
}

.breadcrumb a:hover {
  text-decoration: underline;
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
  padding: 4rem 0;
  text-align: center;
}

.hero h1 {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

.hero p {
  font-size: 1.1rem;
}

/* Products Section */
.products-section {
  padding: 3rem 0;
}

.filters {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
}

#search-box,
#category-filter {
  padding: 0.75rem;
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  font-size: 1rem;
}

#search-box {
  flex: 1;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 2rem;
}

.product-card {
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  overflow: hidden;
  transition: transform 0.3s, box-shadow 0.3s;
}

.product-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.product-image {
  width: 100%;
  height: 200px;
  background-color: var(--light);
  display: flex;
  align-items: center;
  justify-content: center;
}

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

.product-info {
  padding: 1rem;
}

.product-info h3 {
  margin-bottom: 0.5rem;
}

.product-info .category {
  font-size: 0.9rem;
  color: #666;
  margin-bottom: 0.5rem;
}

.product-info .description {
  font-size: 0.9rem;
  color: #888;
  margin-bottom: 1rem;
}

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

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

.buttons {
  display: flex;
  gap: 0.5rem;
}

.btn-add,
.btn-buy {
  padding: 0.5rem 0.75rem;
  border: none;
  border-radius: 0.3rem;
  cursor: pointer;
  font-size: 0.9rem;
  transition: background-color 0.3s;
}

.btn-add {
  background-color: var(--light);
  color: var(--primary);
  border: 1px solid var(--primary);
}

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

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

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

/* Product Detail Section */
.product-detail {
  padding: 2rem 0;
}

.product-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.product-image-large {
  background-color: var(--light);
  border-radius: 0.5rem;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 500px;
}

.product-image-large img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.product-details {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
}

.product-details h1 {
  font-size: 2rem;
  margin-bottom: 0.5rem;
  color: var(--dark);
}

.category-tag {
  display: inline-block;
  background-color: var(--primary);
  color: white;
  padding: 0.3rem 0.8rem;
  border-radius: 0.3rem;
  font-size: 0.9rem;
  margin-bottom: 1rem;
  width: fit-content;
}

.price-section {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}

.price-tag {
  font-size: 2rem;
  font-weight: bold;
  color: var(--primary);
}

.stock {
  padding: 0.3rem 0.8rem;
  border-radius: 0.3rem;
  font-size: 0.9rem;
  font-weight: bold;
}

.in-stock {
  background-color: #dcfce7;
  color: #166534;
}

.out-stock {
  background-color: #fee2e2;
  color: #991b1b;
}

.description-full {
  color: #555;
  font-size: 1rem;
  line-height: 1.6;
  margin-bottom: 2rem;
}

.quantity-section {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2rem;
}

.quantity-section label {
  font-weight: 500;
}

.quantity-section input {
  width: 80px;
  padding: 0.5rem;
  border: 1px solid var(--border);
  border-radius: 0.3rem;
  font-size: 1rem;
}

.action-buttons {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
}

.btn-add-to-cart,
.btn-buy-now {
  flex: 1;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 0.3rem;
  font-size: 1rem;
  font-weight: bold;
  cursor: pointer;
  transition: background-color 0.3s;
}

.btn-add-to-cart {
  background-color: white;
  color: var(--primary);
  border: 2px solid var(--primary);
}

.btn-add-to-cart:hover {
  background-color: var(--primary);
  color: white;
}

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

.btn-buy-now:hover {
  background-color: var(--secondary);
}

.product-meta {
  background-color: var(--light);
  padding: 1rem;
  border-radius: 0.3rem;
  border-top: 1px solid var(--border);
  padding-top: 1.5rem;
}

.product-meta p {
  margin-bottom: 0.5rem;
  font-size: 0.95rem;
}

.product-meta strong {
  color: var(--dark);
}

/* Related Products Section */
.related-products {
  border-top: 1px solid var(--border);
  padding: 3rem 0;
}

.related-products h2 {
  margin-bottom: 2rem;
  font-size: 1.5rem;
}

.btn-view {
  background-color: white;
  color: var(--primary);
  border: 1px solid var(--primary);
  padding: 0.5rem 1rem;
  border-radius: 0.3rem;
  text-decoration: none;
  text-align: center;
  transition: all 0.3s;
  display: inline-block;
}

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

/* Cart Section */
.cart-section,
.checkout-section,
.orders-section,
.confirmation-section {
  padding: 2rem 0;
  min-height: 60vh;
}

.cart-content,
.checkout-content {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 2rem;
  margin-top: 2rem;
}

.cart-items,
.checkout-form {
  background-color: white;
}

.cart-summary,
.order-summary {
  background-color: var(--light);
  padding: 1.5rem;
  border-radius: 0.5rem;
  height: fit-content;
}

.cart-table {
  width: 100%;
  border-collapse: collapse;
}

.cart-table thead {
  background-color: var(--light);
}

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

.cart-item input {
  width: 80px;
  padding: 0.3rem;
  border: 1px solid var(--border);
  border-radius: 0.3rem;
}

.btn-remove {
  background-color: #ef4444;
  color: white;
  border: none;
  padding: 0.3rem 0.6rem;
  border-radius: 0.3rem;
  cursor: pointer;
  transition: background-color 0.3s;
}

.btn-remove:hover {
  background-color: #dc2626;
}

.empty-cart {
  text-align: center;
  padding: 2rem;
  color: #666;
}

.empty-cart a {
  color: var(--primary);
  text-decoration: none;
}

.summary-row {
  display: flex;
  justify-content: space-between;
  padding: 0.5rem 0;
  border-bottom: 1px solid #ddd;
}

.summary-row.total {
  border-bottom: none;
  font-weight: bold;
  font-size: 1.2rem;
  padding-top: 1rem;
}

/* Checkout */
.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.3rem;
  font-weight: 500;
}

.form-group input,
.form-group select {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border);
  border-radius: 0.3rem;
  font-size: 1rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.btn-checkout,
.btn-place-order {
  width: 100%;
  background-color: var(--primary);
  color: white;
  border: none;
  padding: 0.75rem;
  border-radius: 0.3rem;
  cursor: pointer;
  font-size: 1rem;
  font-weight: bold;
  transition: background-color 0.3s;
  margin-top: 1rem;
}

.btn-checkout:hover,
.btn-place-order:hover {
  background-color: var(--secondary);
}

.btn-continue {
  display: block;
  text-align: center;
  margin-top: 1rem;
  color: var(--primary);
  text-decoration: none;
  padding: 0.5rem;
  border: 1px solid var(--primary);
  border-radius: 0.3rem;
  transition: background-color 0.3s;
}

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

/* Order Confirmation */
.confirmation-box {
  max-width: 600px;
  margin: 2rem auto;
  background-color: white;
  padding: 2rem;
  border-radius: 0.5rem;
  text-align: center;
  border: 1px solid var(--border);
}

.success-icon {
  font-size: 3rem;
  color: var(--success);
  margin-bottom: 1rem;
}

.confirmation-box h1 {
  color: var(--success);
  margin-bottom: 0.5rem;
}

.order-details {
  text-align: left;
  margin-top: 2rem;
  border-top: 1px solid var(--border);
  padding-top: 2rem;
}

.detail-row {
  display: flex;
  justify-content: space-between;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--light);
}

.detail-row span:first-child {
  font-weight: bold;
}

.confirmation-table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
}

.confirmation-table th,
.confirmation-table td {
  padding: 0.75rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.confirmation-table thead {
  background-color: var(--light);
}

.order-totals {
  margin-top: 1rem;
  border-top: 1px solid var(--border);
  padding-top: 1rem;
}

.total-row {
  display: flex;
  justify-content: space-between;
  padding: 0.5rem 0;
}

.total-row.grand-total {
  font-weight: bold;
  font-size: 1.2rem;
  border-top: 1px solid var(--border);
  padding-top: 1rem;
}

.confirmation-actions {
  display: flex;
  gap: 1rem;
  margin-top: 2rem;
}

.btn-view-orders,
.btn-continue-shopping {
  flex: 1;
  padding: 0.75rem;
  border-radius: 0.3rem;
  text-align: center;
  text-decoration: none;
  transition: background-color 0.3s;
  font-weight: bold;
}

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

.btn-view-orders:hover {
  background-color: var(--secondary);
}

.btn-continue-shopping {
  background-color: var(--light);
  color: var(--primary);
  border: 1px solid var(--primary);
}

.btn-continue-shopping:hover {
  background-color: white;
}

/* Orders Table */
.orders-table-wrapper {
  overflow-x: auto;
}

.orders-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1rem;
}

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

.orders-table thead {
  background-color: var(--light);
}

.status {
  padding: 0.3rem 0.6rem;
  border-radius: 0.3rem;
  font-size: 0.9rem;
  font-weight: bold;
}

.status-pending {
  background-color: #fef3c7;
  color: #92400e;
}

.status-completed {
  background-color: #dcfce7;
  color: #166534;
}

.status-cancelled {
  background-color: #fee2e2;
  color: #991b1b;
}

/* This is the btn-view specific to the orders table. The one above is for related products. */
.orders-section .btn-view {
  color: var(--primary);
  text-decoration: none;
  padding: 0.3rem 0.6rem;
  border: 1px solid var(--primary);
  border-radius: 0.3rem;
  transition: background-color 0.3s;
}

.orders-section .btn-view:hover {
  background-color: var(--primary);
  color: white;
}

.no-orders {
  text-align: center;
  padding: 2rem;
  color: #666;
}

.no-orders a {
  color: var(--primary);
}

/* Footer */
footer {
  background-color: var(--dark);
  color: white;
  text-align: center;
  padding: 2rem;
  margin-top: 3rem;
}

/* Responsive */
@media (max-width: 768px) {
  .cart-content,
  .checkout-content {
    grid-template-columns: 1fr;
  }

  .products-grid {
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 1rem;
  }

  .nav-links {
    gap: 1rem;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .orders-table {
    font-size: 0.9rem;
  }

  .orders-table th,
  .orders-table td {
    padding: 0.5rem;
  }

  /* Responsive for Product Detail */
  .product-detail-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .product-image-large {
    min-height: 300px;
  }

  .product-details h1 {
    font-size: 1.5rem;
  }

  .price-tag {
    font-size: 1.5rem;
  }

  .action-buttons {
    flex-direction: column;
  }

  .btn-add-to-cart,
  .btn-buy-now {
    width: 100%;
  }
}