.product-detail-shell {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 38px 0 72px;
}

.product-breadcrumb {
  margin: 0 0 22px;
  color: #c7ad68;
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .13em;
  text-transform: uppercase;
}

.product-breadcrumb a { color: inherit; text-decoration: none; }
.product-breadcrumb a:hover { text-decoration: underline; }

.product-detail-card {
  display: grid;
  grid-template-columns: minmax(260px, .85fr) minmax(300px, 1.15fr);
  gap: 42px;
  align-items: center;
  padding: clamp(24px, 4vw, 48px);
  border: 1px solid rgba(199, 173, 104, .55);
  border-radius: 18px;
  background: rgba(8, 8, 10, .88);
  box-shadow: 0 24px 70px rgba(0, 0, 0, .45);
}

.product-detail-art {
  display: grid;
  place-items: center;
  min-height: 350px;
  border-radius: 14px;
  background: radial-gradient(circle, rgba(199, 173, 104, .16), rgba(0, 0, 0, .1) 66%);
}

.product-detail-art img { width: min(100%, 330px); max-height: 390px; object-fit: contain; }
.product-detail-copy h1 { margin: 12px 0 4px; color: #fff; font-size: clamp(2rem, 6vw, 4.5rem); line-height: .95; letter-spacing: .035em; }
.product-detail-copy .strength { margin: 0 0 18px; color: #c7ad68; font-size: 1.3rem; font-weight: 800; }
.product-source-badge { display: inline-flex; padding: 7px 10px; border: 1px solid #c7ad68; border-radius: 999px; color: #c7ad68; font-size: .72rem; font-weight: 900; letter-spacing: .12em; }
.product-sku { color: #aaa; font-size: .82rem; letter-spacing: .08em; }
.product-detail-summary { color: #ddd; line-height: 1.7; }
.product-live-price { display: block; margin: 24px 0 6px; color: #fff; font-size: 2rem; }
.product-availability { display: block; margin-bottom: 20px; color: #9dd8a5; font-size: .76rem; font-weight: 900; letter-spacing: .08em; }
.product-detail-card .add-cart { width: min(100%, 340px); }
.product-order-note { margin: 13px 0 0; color: #aaa; font-size: .82rem; line-height: 1.5; }

.product-information-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 24px;
}

.product-information-grid article,
.product-faq {
  padding: 24px;
  border: 1px solid rgba(199, 173, 104, .28);
  border-radius: 14px;
  background: rgba(8, 8, 10, .78);
}

.product-information-grid h2,
.product-faq h2 { margin: 0 0 12px; color: #c7ad68; font-size: 1rem; letter-spacing: .08em; }
.product-information-grid p,
.product-faq p { margin: 0; color: #d1d1d1; line-height: 1.65; }
.product-faq { margin-top: 24px; }
.product-faq details { border-top: 1px solid rgba(255,255,255,.1); padding: 15px 0; }
.product-faq details:first-of-type { border-top: 0; }
.product-faq summary { color: #fff; cursor: pointer; font-weight: 800; }
.product-faq details p { margin-top: 9px; }
.product-detail-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 24px; }
.product-detail-actions a { padding: 12px 18px; border: 1px solid #c7ad68; border-radius: 8px; color: #c7ad68; font-weight: 800; text-decoration: none; }

@media (max-width: 760px) {
  .product-detail-shell { width: min(100% - 20px, 1180px); padding-top: 22px; }
  .product-detail-card { grid-template-columns: 1fr; gap: 18px; }
  .product-detail-art { min-height: 260px; }
  .product-information-grid { grid-template-columns: 1fr; }
}