/* ========================================
   Item Detail Page Styles
   ======================================== */

.item-detail-page {
  padding: 32px 0 80px;
  min-height: 60vh;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-secondary);
  font-size: 0.88rem;
  font-weight: 500;
  margin-bottom: 28px;
  transition: color var(--transition);
}
.back-link:hover {
  color: var(--accent);
}

/* Loading state */
.item-detail-loading {
  text-align: center;
  padding: 80px 20px;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.item-detail-error {
  text-align: center;
  padding: 80px 20px;
  color: var(--danger);
  font-size: 0.95rem;
}

/* Main layout */
.item-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

/* Image section */
.item-detail-image-wrap {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-card);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.item-detail-image {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  display: block;
}

.item-detail-badges {
  position: absolute;
  top: 16px;
  left: 16px;
  display: flex;
  gap: 8px;
}

.item-detail-sale-badge {
  position: absolute;
  top: 16px;
  right: 16px;
  padding: 6px 14px;
  border-radius: 100px;
  font-size: 0.78rem;
  font-weight: 700;
  background: var(--danger);
  color: #fff;
}

/* Info section */
.item-detail-info {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.item-detail-name {
  font-size: clamp(1.3rem, 4vw, 2rem);
  font-weight: 900;
  line-height: 1.2;
}

.item-detail-mutation {
  display: inline-block;
  padding: 5px 14px;
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  background: var(--accent);
  color: #000;
}

/* Variant Selector */
.variant-selector-group {
  margin-top: 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.variant-selector-label {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
}
.variant-selector {
  padding: 10px 14px;
  background: var(--bg-card);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.9rem;
  font-family: inherit;
  font-weight: 600;
  cursor: pointer;
  outline: none;
  transition: border-color var(--transition);
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12' fill='none'%3E%3Cpath d='M3 5l3 3 3-3' stroke='%23888' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
}
.variant-selector:hover {
  border-color: rgba(255, 255, 255, 0.2);
}
.variant-selector:focus {
  border-color: var(--accent);
}

.item-detail-traits {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}

.item-detail-trait {
  padding: 5px 14px;
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
  background: var(--accent-subtle);
  color: var(--text-secondary);
  border: 1px solid var(--card-hover-border);
  white-space: nowrap;
}

.item-detail-price-row {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.item-detail-price {
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--accent);
}

.item-detail-original-price {
  font-size: 1.2rem;
  color: var(--text-muted);
  text-decoration: line-through;
}

.item-detail-stock {
  font-size: 0.88rem;
  color: var(--text-secondary);
}
.item-detail-stock.low {
  color: var(--warning);
  font-weight: 600;
}
.item-detail-stock.out {
  color: var(--danger);
  font-weight: 600;
}
.item-detail-generation {
  font-size: 0.9rem;
  color: var(--accent);
  font-weight: 600;
  margin-top: 4px;
}

/* Bulk Discount Tiers */
.bulk-tiers {
  margin-top: 12px;
  padding: 12px 16px;
  background: rgba(52, 211, 153, 0.05);
  border: 1px solid var(--success-border);
  border-radius: var(--radius-md);
}
.bulk-tiers-label {
  color: var(--success);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin: 0 0 8px;
}
.bulk-tier-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 4px 8px;
  border-radius: 6px;
  transition: background 0.2s;
}
.bulk-tier-row.bulk-tier-active {
  background: var(--success-subtle);
}
.bulk-tier-qty {
  color: var(--text-primary);
  font-weight: 600;
  font-size: 0.9rem;
  min-width: 60px;
}
.bulk-tier-pct {
  color: var(--success);
  font-weight: 700;
  font-size: 0.9rem;
  min-width: 70px;
}
.bulk-tier-price {
  color: var(--text-secondary);
  font-size: 0.85rem;
}
.bulk-savings {
  margin-top: 8px;
  padding: 8px 12px;
  background: var(--success-subtle);
  border-radius: 6px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.bulk-savings-pct {
  color: var(--success);
  font-weight: 600;
  font-size: 0.85rem;
}
.bulk-savings-amount {
  color: var(--accent);
  font-weight: 700;
  font-size: 0.9rem;
}

.item-detail-description {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
  padding: 20px;
  background: var(--bg-card);
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.05);
}
.item-detail-description-label {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.item-detail-qty-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 8px;
}
.item-detail-qty-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.item-detail-qty-selector {
  display: flex;
  align-items: center;
  gap: 0;
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.item-detail-qty-btn {
  width: 36px;
  height: 36px;
  background: var(--bg-card);
  color: var(--text-primary);
  font-size: 1.1rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
  cursor: pointer;
  border: none;
}
.item-detail-qty-btn:hover:not(:disabled) {
  background: var(--accent);
  color: #000;
}
.item-detail-qty-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}
.item-detail-qty-value {
  width: 40px;
  text-align: center;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  border-left: 1px solid rgba(255,255,255,0.08);
  border-right: 1px solid rgba(255,255,255,0.08);
  line-height: 36px;
}

.item-detail-actions {
  display: flex;
  gap: 8px;
  margin-top: 8px;
}

.item-detail-add-btn {
  flex: 1;
  padding: 16px 32px;
  background: var(--accent);
  color: #000;
  font-weight: 800;
  font-size: 1rem;
  border-radius: var(--radius-md);
  transition: all var(--transition);
  text-align: center;
}
.item-detail-add-btn:hover {
  background: var(--accent-dim);
  transform: translateY(-2px);
  box-shadow: 0 4px 20px var(--accent-glow);
}
.item-detail-add-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.item-detail-buy-btn {
  flex: 1;
  padding: 16px 32px;
  background: transparent;
  color: var(--accent);
  font-weight: 800;
  font-size: 1rem;
  border-radius: var(--radius-md);
  border: 2px solid var(--accent);
  transition: all var(--transition);
  text-align: center;
}
.item-detail-buy-btn:hover {
  background: var(--accent);
  color: #000;
  transform: translateY(-2px);
  box-shadow: 0 4px 20px var(--accent-glow);
}

/* Frequently Purchased With */
.related-section {
  margin-top: 56px;
  padding-top: 40px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}
.related-heading {
  font-size: clamp(1rem, 3vw, 1.3rem);
  font-weight: 800;
  margin-bottom: 24px;
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

/* Responsive */
@media (max-width: 768px) {
  .item-detail-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .item-detail-name {
    font-size: 1.5rem;
  }

  .item-detail-price {
    font-size: 1.8rem;
  }
}

@media (max-width: 480px) {
  .item-detail-page { padding: 20px 0 48px; }
  .item-detail-grid { gap: 16px; }
  .item-detail-name { font-size: 1.3rem; }
  .item-detail-price { font-size: 1.5rem; }
  .item-detail-original-price { font-size: 1rem; }
  .item-detail-description { padding: 14px; font-size: 0.88rem; }
  .item-detail-actions { flex-direction: column; }
  .item-detail-add-btn,
  .item-detail-buy-btn { padding: 14px 24px; font-size: 0.95rem; }
  .item-detail-badges { top: 10px; left: 10px; }
  .item-detail-sale-badge { top: 10px; right: 10px; padding: 4px 10px; font-size: 0.72rem; }
  .item-detail-info { gap: 14px; }
  .related-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .related-section { margin-top: 36px; padding-top: 24px; }
  .related-heading { font-size: 1.1rem; margin-bottom: 16px; }
}

@media (max-width: 360px) {
  .related-grid { grid-template-columns: 1fr; }
}

/* ========== Item Detail — 600px breakpoint ========== */
@media (max-width: 600px) {
  .item-detail-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .item-detail-actions {
    flex-direction: column;
  }
  .item-detail-add-btn,
  .item-detail-buy-btn {
    width: 100%;
    min-height: 44px;
    justify-content: center;
  }
  .related-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  /* Touch targets */
  .item-detail-qty-btn {
    width: 44px;
    height: 44px;
  }
  .item-detail-qty-value {
    line-height: 44px;
  }
  .back-link {
    min-height: 44px;
    display: inline-flex;
    align-items: center;
  }
  /* Images */
  .item-detail-image {
    max-width: 100%;
  }
}

/* ========== Item Detail — Hover Polish ========== */
.item-detail-add-btn {
  transition: all 0.25s ease;
}
.item-detail-add-btn:active {
  transform: scale(0.97) !important;
}
.item-detail-buy-btn {
  transition: all 0.25s ease;
}
.item-detail-buy-btn:active {
  transform: scale(0.97) !important;
}

/* ========== Restock Notify ========== */
.restock-notify-inline {
  display: flex;
  gap: 8px;
  width: 100%;
}
.restock-notify-input {
  flex: 1;
  padding: 12px 16px;
  font-size: 0.9rem;
  background: var(--bg-secondary);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  outline: none;
  transition: border-color var(--transition);
}
.restock-notify-input:focus {
  border-color: var(--accent);
}
.restock-notify-input::placeholder {
  color: var(--text-muted, rgba(255,255,255,0.3));
}
.restock-notify-btn {
  padding: 12px 24px;
  background: var(--accent);
  color: #000;
  font-weight: 700;
  font-size: 0.9rem;
  border-radius: var(--radius-md);
  transition: all var(--transition);
  white-space: nowrap;
}
.restock-notify-btn:hover {
  background: var(--accent-dim);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px var(--accent-glow);
}
.restock-notify-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}
@media (max-width: 600px) {
  .restock-notify-inline {
    flex-direction: column;
  }
  .restock-notify-btn {
    width: 100%;
    min-height: 44px;
  }
}