.product-hero {
  background: linear-gradient(135deg, #0b1530, var(--navy));
  color: #fff;
  padding: clamp(3.5rem, 8vw, 6.5rem) 0;
}

.product-hero-grid {
  display: grid;
  align-items: center;
  gap: clamp(2rem, 6vw, 5rem);
  grid-template-columns: 0.92fr 1.08fr;
}

.product-photo {
  margin: 0;
  border: 1px solid rgba(255, 255, 255, 0.22);
  background: #f0f1f4;
  padding: 0.8rem;
}

.product-photo img {
  display: block;
  width: 100%;
  max-height: 620px;
  object-fit: contain;
}

.product-hero .eyebrow { color: #ff9ea8; }

.product-hero h1 {
  max-width: 12ch;
  font-size: clamp(3rem, 7vw, 5.6rem);
}

.product-hero .lede {
  max-width: 58ch;
  margin-top: 1.15rem;
  color: #d8dfec;
}

.starting {
  margin-top: 1.15rem;
  color: #fff;
  font-size: 1.15rem;
  font-weight: 950;
}

.product-facts {
  display: grid;
  gap: 1.2rem;
  grid-template-columns: 1fr 1fr;
}

.fact-card,
.price-card,
.detail-panel {
  border: 1px solid var(--line);
  border-top: 4px solid var(--red);
  background: #fff;
  box-shadow: var(--shadow);
  padding: 1.35rem;
}

.fact-card h2,
.detail-panel h2 { font-size: 1.25rem; }

.fact-card p,
.fact-card li,
.detail-panel p,
.detail-panel li {
  color: var(--muted);
  font-size: 0.9rem;
}

.fact-card ul,
.detail-panel ul { padding-left: 1.2rem; }

.price-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.price-card h3 { font-size: 1rem; }

.price-card strong {
  display: block;
  margin-top: 0.8rem;
  color: var(--red);
  font-size: 1.55rem;
}

.price-card p {
  margin-top: 0.55rem;
  color: var(--muted);
  font-size: 0.8rem;
}

.detail-layout {
  display: grid;
  align-items: start;
  gap: 1.2rem;
  grid-template-columns: 1.1fr 0.9fr;
}

.notice {
  margin-top: 1.2rem;
  border-left: 4px solid var(--red);
  background: var(--cream);
  color: var(--muted);
  font-size: 0.82rem;
  padding: 1rem;
}

@media (max-width: 820px) {
  .product-hero-grid,
  .product-facts,
  .detail-layout { grid-template-columns: 1fr; }
  .product-photo { order: 2; }
}

@media (max-width: 650px) {
  .price-grid { grid-template-columns: 1fr; }
}