.product-page {
  background: #fff;
}

.product-page main {
  padding-top: var(--header-height);
}

.product-header__back {
  color: var(--color-gold-dark);
  font-weight: 700;
}

.product-hero {
  padding: 72px 0;
  background: linear-gradient(135deg, #171717 0%, #27231b 100%);
  color: var(--color-white);
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9rem;
}

.breadcrumbs a:hover {
  color: var(--color-gold-light);
}

.product-hero__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.product-hero__tag {
  display: inline-block;
  margin-bottom: 12px;
  color: var(--color-gold-light);
  font-weight: 700;
}

.product-hero h1 {
  margin-bottom: 18px;
  font-size: clamp(2.1rem, 5vw, 3.8rem);
  line-height: 1.2;
}

.product-hero__lead {
  margin-bottom: 24px;
  color: rgba(255, 255, 255, 0.82);
  font-size: 1.1rem;
}

.product-hero__points {
  display: grid;
  gap: 10px;
  margin-bottom: 30px;
}

.product-hero__points li::before {
  content: "✓";
  margin-left: 10px;
  color: var(--color-gold);
  font-weight: 800;
}

.product-hero__image {
  overflow: hidden;
  border: 1px solid rgba(201, 169, 98, 0.45);
  border-radius: 28px;
  box-shadow: var(--shadow-lg);
}

.product-hero__image img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
}

.product-content {
  padding: 80px 0;
}

.product-content__grid {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 48px;
  align-items: start;
}

.product-copy h2,
.faq-section h2,
.related-section h2 {
  margin-bottom: 18px;
  font-size: clamp(1.7rem, 3vw, 2.35rem);
}

.product-copy h3 {
  margin: 30px 0 10px;
  font-size: 1.3rem;
}

.product-copy p {
  margin-bottom: 15px;
  color: var(--color-gray-text);
}

.product-summary {
  padding: 28px;
  border: 1px solid var(--color-gray);
  border-radius: var(--radius-lg);
  background: var(--color-gray-light);
}

.product-summary h2 {
  margin-bottom: 18px;
  font-size: 1.35rem;
}

.product-summary ul {
  display: grid;
  gap: 14px;
}

.product-summary li {
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-gray);
}

.product-summary li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.faq-section {
  padding: 80px 0;
  background: var(--color-gray-light);
}

.faq-list {
  display: grid;
  gap: 14px;
  max-width: 900px;
  margin: 30px auto 0;
}

.faq-list details {
  padding: 20px 24px;
  border: 1px solid var(--color-gray);
  border-radius: var(--radius);
  background: var(--color-white);
}

.faq-list summary {
  cursor: pointer;
  font-weight: 700;
}

.faq-list p {
  padding-top: 12px;
  color: var(--color-gray-text);
}

.related-section {
  padding: 80px 0;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 28px;
}

.related-card {
  padding: 24px;
  border: 1px solid var(--color-gray);
  border-radius: var(--radius);
  background: var(--color-white);
  font-weight: 700;
  text-align: center;
  box-shadow: var(--shadow-sm);
}

.related-card:hover {
  border-color: var(--color-gold);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.product-cta {
  padding: 50px 0;
  background: var(--color-gold);
  text-align: center;
}

.product-cta h2 {
  margin-bottom: 8px;
  font-size: clamp(1.7rem, 3vw, 2.3rem);
}

.product-cta p {
  margin-bottom: 22px;
}

@media (max-width: 768px) {
  .product-header__back {
    font-size: 0.85rem;
  }

  .product-hero {
    padding: 44px 0 56px;
  }

  .product-hero__grid,
  .product-content__grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .product-hero__image {
    order: -1;
  }

  .product-hero__image img {
    aspect-ratio: 16 / 11;
  }

  .product-content,
  .faq-section,
  .related-section {
    padding: 58px 0;
  }

  .related-grid {
    grid-template-columns: 1fr;
  }
}