/* ==========================================================================
   YU BAZAAR - PRODUCT DETAILS STYLES
   Editorial 60/40 Commerce Gallery + Sticky Verified Student Inquiry Panel
   ========================================================================== */

.product-page-wrapper {
  max-width: 1240px;
  margin: 0 auto;
  padding: 32px 24px 80px;
}

.product-top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-xl);
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 550;
  color: var(--shade-60);
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  background: var(--canvas-light);
  border: 1px solid var(--hairline-light);
  box-shadow: var(--shadow-level-3);
  transition: all var(--transition-fast);
}

.back-link:hover {
  color: var(--primary-ink);
  border-color: var(--shade-40);
  transform: translateX(-2px);
}

/* 60/40 Two-Column Layout */
.product-grid-layout {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: start;
  margin-bottom: 48px;
}

/* Left Column: Media Stage & Details */
.product-gallery-stage {
  position: relative;
  width: 100%;
  border-radius: var(--radius-xl);
  background-color: var(--canvas-light);
  border: 1px solid var(--hairline-light);
  box-shadow: var(--shadow-level-3);
  overflow: hidden;
  margin-bottom: var(--spacing-xl);
}

.product-main-image {
  width: 100%;
  height: 480px;
  object-fit: contain;
  background-color: #fafaf8;
  display: block;
}

.product-details-card {
  background-color: var(--canvas-light);
  border-radius: var(--radius-xl);
  border: 1px solid var(--hairline-light);
  box-shadow: var(--shadow-level-3);
  padding: 32px;
}

.section-label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: var(--shade-50);
  margin-bottom: 12px;
}

.product-description-text {
  font-size: 16px;
  line-height: 1.65;
  color: var(--shade-70);
  white-space: pre-line;
  margin-bottom: 24px;
}

.product-spec-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
  border-top: 1px solid var(--hairline-light);
  font-size: 14.5px;
}

.spec-key {
  color: var(--shade-50);
  font-weight: 500;
}

.spec-val {
  color: var(--primary-ink);
  font-weight: 600;
}

/* Right Column: Sticky Seller & Action Card */
.sticky-sidebar {
  position: sticky;
  top: 96px;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

.purchase-card {
  background-color: var(--canvas-light);
  border-radius: var(--radius-xl);
  border: 1px solid var(--hairline-light);
  box-shadow: var(--shadow-level-3);
  padding: 32px;
}

.product-title {
  font-family: var(--font-family-display);
  font-size: 32px;
  font-weight: 550;
  color: var(--primary-ink);
  line-height: 1.2;
  letter-spacing: -0.3px;
  margin-bottom: 16px;
}

.product-price-wrapper {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--hairline-light);
}

.price-display {
  font-family: var(--font-family-display);
  font-size: 42px;
  font-weight: 700;
  color: var(--primary-ink);
  letter-spacing: -0.5px;
}

.price-currency {
  font-size: 16px;
  font-weight: 600;
  color: var(--shade-50);
}

/* Verified Student Seller Profile */
.seller-profile-card {
  background-color: var(--shade-10);
  border: 1px solid var(--hairline-light);
  border-radius: var(--radius-lg);
  padding: 16px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
}

.seller-avatar {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-pill);
  background-color: var(--primary-ink);
  color: var(--on-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 16px;
  flex-shrink: 0;
}

.seller-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.seller-name {
  font-weight: 600;
  font-size: 15px;
  color: var(--primary-ink);
  display: flex;
  align-items: center;
  gap: 6px;
}

.seller-subtext {
  font-size: 13px;
  color: var(--shade-50);
}

/* Quick Inquiry Chips */
.quick-replies {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.quick-reply-chip {
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  background-color: var(--shade-20);
  border: 1px solid var(--hairline-light);
  font-size: 13px;
  font-weight: 500;
  color: var(--shade-70);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.quick-reply-chip:hover {
  background-color: var(--primary-ink);
  color: var(--on-primary);
  border-color: var(--primary-ink);
}

/* Safety Tip Band */
.safety-tip-container {
  margin-top: 16px;
}

/* Responsive */
@media (max-width: 992px) {
  .product-grid-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .sticky-sidebar {
    position: static;
  }

  .product-main-image {
    height: 360px;
  }
}