/**
 * COSAS3D — Product Detail View & Interactive Image Gallery
 */

.product-detail-view {
  padding: var(--space-xl) 0 var(--space-4xl) 0;
}

.back-nav-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-family: var(--font-family-mono);
  font-size: 0.825rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-xl);
  transition: color var(--transition-fast), transform var(--transition-fast);
}

.back-nav-link:hover {
  color: var(--color-accent-orange);
  transform: translateX(-4px);
}

/* Two-column Detail Layout */
.product-detail-layout {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: clamp(var(--space-2xl), 5vw, var(--space-4xl));
  align-items: start;
}

/* 1. Gallery Component */
.gallery-container {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  position: sticky;
  top: calc(var(--header-height) + var(--space-lg));
}

.gallery-main-stage {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.gallery-main-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: opacity var(--transition-fast), transform var(--transition-normal);
}

.gallery-main-stage:hover .gallery-main-img {
  transform: scale(1.02);
}

/* Gallery Arrows */
.gallery-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  background-color: rgba(14, 16, 19, 0.85);
  backdrop-filter: blur(8px);
  color: #ffffff;
  border: 1px solid var(--color-border-medium);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 5;
  transition: all var(--transition-fast);
  opacity: 0.7;
}

.gallery-arrow:hover {
  opacity: 1;
  background-color: var(--color-accent-orange);
  border-color: var(--color-accent-orange);
  box-shadow: 0 0 16px rgba(255, 90, 31, 0.4);
}

.gallery-arrow-prev {
  left: 12px;
}

.gallery-arrow-next {
  right: 12px;
}

.gallery-counter {
  position: absolute;
  bottom: 12px;
  right: 12px;
  background-color: rgba(14, 16, 19, 0.85);
  backdrop-filter: blur(6px);
  color: var(--color-text-secondary);
  font-family: var(--font-family-mono);
  font-size: 0.75rem;
  padding: 4px 10px;
  border-radius: var(--radius-xs);
  border: 1px solid var(--color-border-subtle);
}

/* Thumbnails Strip */
.gallery-thumbs-strip {
  display: flex;
  gap: var(--space-sm);
  overflow-x: auto;
  padding-bottom: var(--space-2xs);
}

.gallery-thumb-btn {
  width: 80px;
  height: 80px;
  flex-shrink: 0;
  border-radius: var(--radius-xs);
  border: 2px solid transparent;
  background-color: var(--color-bg-surface);
  overflow: hidden;
  cursor: pointer;
  opacity: 0.6;
  transition: all var(--transition-fast);
  padding: 0;
}

.gallery-thumb-btn:hover {
  opacity: 0.9;
  border-color: var(--color-border-strong);
}

.gallery-thumb-btn.is-active {
  opacity: 1;
  border-color: var(--color-accent-orange);
  box-shadow: 0 0 10px rgba(255, 90, 31, 0.3);
}

.gallery-thumb-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* 2. Product Information Panel */
.product-info-panel {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

.product-meta-header {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.product-category-crumb {
  font-family: var(--font-family-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  color: var(--color-accent-orange);
  letter-spacing: 0.08em;
}

.product-title {
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  line-height: 1.15;
}

.product-badges-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-top: var(--space-xs);
}

.product-price-section {
  display: flex;
  align-items: baseline;
  gap: var(--space-md);
  padding: var(--space-md) 0;
  border-top: 1px solid var(--color-border-subtle);
  border-bottom: 1px solid var(--color-border-subtle);
}

.product-price-amount {
  font-family: var(--font-family-display);
  font-size: 2.25rem;
  font-weight: var(--fw-bold);
  color: var(--color-text-primary);
  letter-spacing: -0.02em;
}

.product-tax-note {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.product-description-text {
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--color-text-secondary);
}

/* 3. Specifications Table */
.product-specs-box {
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
}

.specs-title {
  font-family: var(--font-family-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.specs-grid {
  display: grid;
  grid-template-columns: 140px 1fr;
  row-gap: var(--space-sm);
  column-gap: var(--space-md);
  font-size: 0.875rem;
}

.spec-key {
  color: var(--color-text-muted);
  font-family: var(--font-family-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
}

.spec-val {
  color: var(--color-text-primary);
}

/* 4. Purchase Integration Container */
.purchase-action-container {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border-medium);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
}

.purchase-actions-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.paypal-secure-badge {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  font-size: 0.775rem;
  color: var(--color-text-muted);
  margin-top: var(--space-2xs);
}

.paypal-secure-badge svg {
  color: var(--color-status-success);
}

/* Sandboxed PayPal Form Container */
.paypal-form-sandbox {
  width: 100%;
}

.paypal-form-sandbox form {
  width: 100%;
  margin: 0;
}