/* ==========================================
   PRODUCT DETAIL PAGE STYLES
   ========================================== */

/* Payment Instructions */
.payment-instructions {
  margin-top: var(--space-lg);
  padding: var(--space-lg);
  background-color: var(--color-beige, #f5f0eb);
  text-align: center;
}


.payment-intro {
  font-size: 0.95rem;
  color: var(--color-gray-600, #555);
  margin-bottom: var(--space-xs);
}

.payment-email-link {
  font-weight: 600;
  color: var(--color-black);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.payment-subtitle {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-top: var(--space-lg);
  margin-bottom: var(--space-xs);
}

.payment-list {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--space-md);
}

.payment-list li {
  padding: 0.35rem 0;
  font-size: 0.95rem;
  color: var(--color-gray-600, #555);
}

.payment-list li::before {
  content: "— ";
  color: var(--color-black);
}

.payment-note {
  font-size: 0.9rem;
  color: var(--color-gray-600, #555);
  border-top: 1px solid var(--color-gray-200, #e5e5e5);
  padding-top: var(--space-sm);
  margin-top: var(--space-sm);
}

/* Breadcrumb */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: var(--space-md) 0;
  margin-bottom: var(--space-md);
}

.breadcrumb-link {
  color: var(--color-gray-500);
  transition: color var(--transition-fast);
}

.breadcrumb-link:hover {
  color: var(--color-black);
}

.breadcrumb-sep {
  color: var(--color-gray-300);
}

.breadcrumb-current {
  color: var(--color-black);
}

/* Product Layout */
.product-detail {
  padding: var(--space-xl) 0 var(--space-3xl);
}

.product-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
}

@media (min-width: 1024px) {
  .product-layout {
    grid-template-columns: 1.2fr 1fr;
    gap: var(--space-2xl);
  }
}

/* Product Gallery */
.product-gallery {
  position: sticky;
  top: 100px;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-sm);
}

.gallery-item {
  position: relative;
  aspect-ratio: 3/4;
  overflow: hidden;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-base);
}

.gallery-item:hover img {
  transform: scale(1.05);
}


/* Product Info */
.product-info-detail {
  padding: var(--space-md) 0;
}

.product-title {
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  margin-bottom: var(--space-sm);
}

.product-price-detail {
  font-size: 1.25rem;
  color: var(--color-gray-700);
  margin-bottom: var(--space-lg);
}

.product-description {
  color: var(--color-gray-700);
  margin-bottom: var(--space-lg);
  line-height: 1.8;
}

/* Product Options */
.product-options {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--color-gray-200);
}

.option-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.option-group label {
  font-size: 0.85rem;
  font-weight: 500;
}

.option-group select {
  padding: 0.875rem 2.5rem 0.875rem 1rem;
  border: 1px solid var(--color-gray-300);
  font-family: inherit;
  font-size: 0.9rem;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23737373' stroke-width='2'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  cursor: pointer;
}

.option-group select:focus {
  outline: none;
  border-color: var(--color-black);
}

/* Quantity Selector */
.quantity-group {
  display: flex;
  align-items: center;
  gap: 0;
  width: fit-content;
}

.qty-btn {
  width: 44px;
  height: 44px;
  border: 1px solid var(--color-gray-300);
  background: var(--color-white);
  font-size: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
}

.qty-btn:hover {
  background: var(--color-gray-100);
}

.qty-btn.minus {
  border-right: none;
}

.qty-btn.plus {
  border-left: none;
}

.quantity-group input {
  width: 60px;
  height: 44px;
  border: 1px solid var(--color-gray-300);
  text-align: center;
  font-family: inherit;
  font-size: 0.95rem;
  -moz-appearance: textfield;
}

.quantity-group input::-webkit-outer-spin-button,
.quantity-group input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.quantity-group input:focus {
  outline: none;
  border-color: var(--color-black);
}

/* Add to Cart Button */
.btn-add-cart {
  width: 100%;
  padding: 1.125rem 2rem;
  font-size: 0.85rem;
  text-align: center;
  display: block;
}

/* Product Meta */
.product-meta {
  font-size: 0.85rem;
  color: var(--color-gray-500);
}

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

.product-meta span {
  color: var(--color-black);
  font-weight: 500;
}

.product-meta a {
  text-decoration: underline;
}

.product-meta a:hover {
  color: var(--color-black);
}

/* ==========================================
   PRODUCT TABS
   ========================================== */
.product-tabs {
  padding: var(--space-2xl) 0;
  border-top: 1px solid var(--color-gray-200);
}

.tabs-nav {
  display: flex;
  justify-content: center;
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
  flex-wrap: wrap;
}

.tab-btn {
  font-size: 0.8rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-gray-500);
  padding: 0.5rem 0;
  border-bottom: 2px solid transparent;
  transition: var(--transition-fast);
}

.tab-btn:hover,
.tab-btn.active {
  color: var(--color-black);
  border-bottom-color: var(--color-black);
}

.tabs-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
}

.tab-panel p {
  color: var(--color-gray-700);
  margin-bottom: var(--space-md);
}

.tab-panel h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin-bottom: var(--space-md);
}

/* Additional Info Table */
.info-table {
  width: 100%;
  text-align: left;
  border-collapse: collapse;
}

.info-table th,
.info-table td {
  padding: 1rem;
  border-bottom: 1px solid var(--color-gray-200);
}

.info-table th {
  font-weight: 500;
  width: 40%;
}

.info-table td {
  color: var(--color-gray-700);
}

/* ==========================================
   QUALITY SECTION
   ========================================== */
.quality-section {
  padding: var(--space-3xl) 0;
}

.quality-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

@media (min-width: 768px) {
  .quality-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.quality-image {
  aspect-ratio: 4/5;
  overflow: hidden;
}

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

.quality-content {
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
}

.quality-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-gray-500);
  display: block;
  margin-bottom: var(--space-sm);
}

.quality-content h2 {
  font-size: clamp(1.25rem, 3vw, 1.75rem);
}

/* ==========================================
   MATERIALS BANNER
   ========================================== */
.materials-banner {
  background: linear-gradient(rgba(0,0,0,0.3), rgba(0,0,0,0.3)),
              url('https://images.unsplash.com/photo-1558171813-4c088753af8f?w=1600&q=80') center/cover;
  min-height: 50vh;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
}

.materials-content {
  text-align: center;
  padding: var(--space-2xl) var(--container-padding);
  max-width: 700px;
}

.materials-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  opacity: 0.8;
  display: block;
  margin-bottom: var(--space-md);
}

.materials-content h2 {
  margin-bottom: var(--space-md);
}

.materials-content p {
  opacity: 0.9;
  line-height: 1.8;
}

/* ==========================================
   RELATED PRODUCTS
   ========================================== */
.related-products {
  padding: var(--space-3xl) 0;
}

.related-products .section-title {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.related-grid {
  grid-template-columns: repeat(2, 1fr);
}

@media (min-width: 768px) {
  .related-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ==========================================
   FEATURES BAR
   ========================================== */
.features-bar {
  padding: var(--space-xl) 0;
  border-top: 1px solid var(--color-gray-200);
  border-bottom: 1px solid var(--color-gray-200);
}

.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
  text-align: center;
}

@media (min-width: 768px) {
  .features-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.feature-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
}

.feature-item svg {
  color: var(--color-gray-700);
}

.feature-item span {
  font-size: 0.85rem;
  color: var(--color-gray-700);
}