/* ============================================================
   Vincor Labs — product-page.css
   Linked from: product-klow80.html, product-retatrutide.html,
   product-wolverine.html
   ============================================================ */

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

footer { margin-top: auto; }

/* ── BREADCRUMB ──────────────────────────────────────────── */
.breadcrumb {
  background: var(--gray-light);
  border-bottom: 1px solid var(--border);
  padding: 10px 20px;
  font-size: 13px;
  color: var(--gray);
}

.breadcrumb a {
  color: var(--blue-light);
  font-weight: 500;
}

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

/* ── PRODUCT PAGE ────────────────────────────────────────── */
.product-page { padding: 50px 20px 80px; }

.product-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: flex-start;
  margin-bottom: 60px;
}

/* ── GALLERY ─────────────────────────────────────────────── */
.product-gallery { position: sticky; top: 90px; }

.product-main-img {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  height: 380px;
  overflow: hidden;
  margin-bottom: 14px;
}

.product-main-img img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 20px;
}

.product-thumbs {
  display: flex;
  gap: 10px;
}

.thumb {
  width: 72px;
  height: 72px;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  background: var(--white);
  transition: border-color .2s;
}

.thumb.active { border-color: var(--blue-mid); }
.thumb:hover { border-color: var(--blue-light); }

.thumb img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 6px;
}

/* ── PRODUCT INFO ────────────────────────────────────────── */
.product-tag {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--blue-light);
  margin-bottom: 10px;
}

.product-title {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 32px;
  font-weight: 700;
  color: var(--blue-dark);
  line-height: 1.2;
  margin-bottom: 10px;
}

.product-title-divider {
  width: 100%;
  height: 2px;
  background: var(--border);
  margin-bottom: 18px;
}

.product-pricing { margin-bottom: 16px; }

.product-price-main {
  font-size: 28px;
  font-weight: 700;
  color: var(--blue-dark);
}

.product-price-original {
  font-size: 18px;
  color: var(--gray);
  text-decoration: line-through;
  margin-right: 8px;
}

.product-summary {
  font-size: 14px;
  color: var(--gray);
  line-height: 1.7;
  margin-bottom: 18px;
}

.product-stock {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: #1a5c2e;
  margin-bottom: 20px;
}

.stock-dot {
  width: 8px;
  height: 8px;
  background: #25a244;
  border-radius: 50%;
  display: inline-block;
}

.product-add-row {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-bottom: 10px;
}

.product-qty {
  display: flex;
  align-items: center;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.product-qty button {
  width: 36px;
  height: 44px;
  background: var(--gray-light);
  border: none;
  font-size: 18px;
  cursor: pointer;
  color: var(--blue-dark);
  transition: background .2s;
}

.product-qty button:hover { background: var(--blue-pale); }

.product-qty span {
  width: 44px;
  text-align: center;
  font-size: 15px;
  font-weight: 600;
  color: var(--blue-dark);
}

.btn-product-cart {
  flex: 1;
  background: var(--blue-dark);
  color: var(--white);
  border: none;
  border-radius: var(--radius);
  padding: 13px 24px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  font-family: 'Barlow', sans-serif;
  transition: background .2s;
}

.btn-product-cart:hover { background: var(--blue-mid); }

.product-multi-note {
  font-size: 12px;
  color: var(--gray);
  margin-bottom: 20px;
}

/* ── COA BADGE ───────────────────────────────────────────── */
.product-coa-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  border: 2px solid var(--blue-light);
  border-radius: var(--radius);
  padding: 10px 16px;
  margin-bottom: 16px;
}

.coa-badge-icon { font-size: 22px; }

.coa-badge-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--blue-dark);
  letter-spacing: .5px;
}

.coa-badge-sub {
  font-size: 11px;
  color: var(--gray);
}

/* ── COA CARD ────────────────────────────────────────────── */
.product-coa-card {
  background: var(--gray-light);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 20px;
}

.coa-lab-tag {
  display: inline-block;
  background: var(--blue-pale);
  color: var(--blue-mid);
  font-size: 11px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 20px;
  margin-bottom: 10px;
}

.coa-card-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--blue-dark);
  margin-bottom: 14px;
}

.coa-card-title span {
  font-weight: 400;
  color: var(--gray);
  font-size: 14px;
}

.coa-card-row {
  display: flex;
  gap: 32px;
  margin-bottom: 14px;
}

.coa-label {
  font-size: 12px;
  color: var(--gray);
  margin-bottom: 4px;
}

.coa-value {
  font-size: 18px;
  font-weight: 700;
  color: var(--blue-dark);
}

.coa-report-link {
  font-size: 13px;
  font-weight: 600;
  color: var(--blue-light);
  text-decoration: underline;
}

/* ── META TAGS ───────────────────────────────────────────── */
.product-meta-tags {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 12px;
  color: var(--gray);
  border-top: 1px solid var(--border);
  padding-top: 16px;
}

/* ── TABS ────────────────────────────────────────────────── */
.product-tabs { margin-bottom: 60px; }

.tab-buttons {
  display: flex;
  border-bottom: 2px solid var(--border);
  margin-bottom: 32px;
}

.tab-btn {
  background: none;
  border: none;
  padding: 12px 24px;
  font-size: 14px;
  font-weight: 600;
  color: var(--gray);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  font-family: 'Barlow', sans-serif;
  transition: all .2s;
}

.tab-btn.active {
  color: var(--blue-dark);
  border-bottom-color: var(--blue-mid);
}

.tab-btn:hover { color: var(--blue-dark); }

.tab-content { display: none; }
.tab-content.active { display: block; }

.tab-content h2 {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 28px;
  font-weight: 700;
  color: var(--blue-dark);
  margin-bottom: 6px;
}

.tab-content h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--blue-dark);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--blue-light);
}

.tab-content h4 {
  font-size: 16px;
  font-weight: 700;
  color: var(--blue-dark);
  margin: 20px 0 8px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border);
}

.tab-content p {
  font-size: 14px;
  color: var(--gray);
  line-height: 1.7;
  margin-bottom: 12px;
}

.tab-content ul {
  list-style: disc;
  padding-left: 20px;
  margin-bottom: 12px;
}

.tab-content ul li {
  font-size: 14px;
  color: var(--gray);
  line-height: 1.6;
  margin-bottom: 6px;
}

.tab-content a {
  color: var(--blue-light);
  font-weight: 600;
  text-decoration: underline;
}

/* ── INFO TABLE ──────────────────────────────────────────── */
.info-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  max-width: 500px;
}

.info-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  color: var(--gray);
}

.info-table td:first-child {
  font-weight: 600;
  color: var(--blue-dark);
  width: 180px;
  background: var(--gray-light);
}

/* ── RELATED PRODUCTS ────────────────────────────────────── */
.related-products { margin-bottom: 40px; }

.related-products h3 {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 26px;
  font-weight: 700;
  color: var(--blue-dark);
  margin-bottom: 20px;
}

/* ── RESPONSIVE ──────────────────────────────────────────── */
@media (max-width: 768px) {
  .product-layout {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .product-gallery { position: static; }
  .product-main-img { height: 280px; }
  .product-title { font-size: 26px; }

  .tab-btn { padding: 10px 14px; font-size: 13px; }
}

@media (max-width: 480px) {
  .product-add-row { flex-direction: column; }
  .btn-product-cart { width: 100%; text-align: center; }
}