/* =============================================
   Product Detail Pages
   ============================================= */

.product {
  background:
    radial-gradient(900px circle at 8% 0%, rgba(234, 88, 12, 0.07), transparent 55%),
    radial-gradient(800px circle at 95% 8%, rgba(74, 144, 217, 0.05), transparent 55%),
    var(--color-bg-page);
}

/* --- Breadcrumbs --- */

.product__breadcrumbs {
  font-size: var(--text-xs);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-muted);
  margin-bottom: var(--space-5);
  letter-spacing: 0.01em;
}

.product__breadcrumbs a {
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-out);
}

.product__breadcrumbs a:hover {
  color: var(--color-accent);
  text-decoration: none;
}

/* --- Layout --- */

.product__layout {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-8);
  align-items: start;
}

@media (max-width: 900px) {
  .product__layout {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
}

/* --- Gallery --- */

.product__gallery {
  display: grid;
  gap: var(--space-4);
  position: sticky;
  top: calc(var(--header-height) + 36px + var(--space-5));
}

.product__image {
  border-radius: var(--radius-3);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
  background: #ffffff;
}

.product__image img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.product__thumbs {
  display: flex;
  gap: var(--space-2);
  overflow-x: auto;
  padding-bottom: var(--space-1);
}

.product__thumb {
  display: inline-flex;
  width: 96px;
  flex: 0 0 auto;
  border-radius: var(--radius-2);
  overflow: hidden;
  border: 2px solid var(--color-border);
  background: #ffffff;
  padding: 0;
  cursor: pointer;
  transition: border-color var(--duration-fast) var(--ease-out),
    box-shadow var(--duration-fast) var(--ease-out);
}

.product__thumb:hover {
  border-color: var(--color-border-strong);
}

.product__thumb:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

.product__thumb[aria-current="true"] {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 2px rgba(234, 88, 12, 0.2);
}

.product__thumb img {
  width: 100%;
  height: 64px;
  object-fit: cover;
}

/* --- Product Info --- */

.product__info {
  display: grid;
  gap: var(--space-5);
  color: var(--color-text-primary);
}

.product__info h1 {
  font-size: clamp(26px, 3vw, 38px);
  line-height: var(--leading-tight);
  letter-spacing: -0.01em;
  color: var(--color-text-primary);
}

.product__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  font-size: var(--text-xs);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-muted);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.product__meta span {
  padding: 6px 12px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border-strong);
  background: var(--color-bg-section);
}

.product__badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

/* --- Price Row --- */

.product__priceRow {
  display: grid;
  gap: var(--space-4);
  align-items: center;
  padding: var(--space-5);
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-3);
  box-shadow: var(--shadow-1);
}

@media (min-width: 900px) {
  .product__priceRow {
    grid-template-columns: auto 1fr;
  }
}

.product__prices {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
}

.product__priceOld {
  color: var(--color-text-muted);
  text-decoration: line-through;
  font-size: var(--text-sm);
}

.product__price {
  font-size: clamp(28px, 3.2vw, 38px);
  font-weight: var(--font-weight-black);
  letter-spacing: -0.01em;
  white-space: nowrap;
  color: var(--color-text-primary);
}

.product__cta {
  justify-self: start;
}

/* --- Panels (Description, Trust) --- */

.product__panels {
  margin-top: var(--space-8);
  display: grid;
  gap: var(--space-5);
}

@media (min-width: 900px) {
  .product__panels {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }
}

.product__panel {
  padding: var(--space-5);
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-3);
  box-shadow: var(--shadow-1);
}

.product__panel h2 {
  font-size: var(--text-xl);
  margin: 0;
  color: var(--color-text-primary);
  padding-bottom: var(--space-3);
  border-bottom: 2px solid var(--color-accent);
  margin-bottom: var(--space-2);
}

.product__panel p {
  margin-top: var(--space-3);
  color: var(--color-text-dark);
  line-height: var(--leading-relaxed);
}

.product__panel ul {
  margin: var(--space-3) 0 0;
  padding-left: 1.1em;
  color: var(--color-text-dark);
  line-height: var(--leading-relaxed);
}

.product__panel li + li {
  margin-top: 6px;
}

.product__panel li::marker {
  color: var(--color-accent);
}

/* --- Related Products --- */

.product__relatedTitle {
  margin-top: var(--space-8);
  font-size: var(--text-2xl);
  font-weight: var(--font-weight-black);
  color: var(--color-text-primary);
}

/* --- Product page button overrides for light theme --- */

.product .btn--secondary {
  background: #ffffff;
  border-color: var(--color-border-strong);
  color: var(--color-text-dark);
}

.product .btn--secondary:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

@media (max-width: 900px) {
  .product__gallery {
    position: static;
  }
}

@media (max-width: 600px) {
  .product__info h1 {
    font-size: clamp(20px, 5vw, 26px);
  }

  .product__panel {
    padding: var(--space-4);
  }

  .product__panel h2 {
    font-size: var(--text-lg);
  }

  .product__priceRow {
    padding: var(--space-4);
  }

  .product__price {
    font-size: clamp(22px, 5vw, 28px);
  }

  .product__thumb {
    width: 72px;
  }

  .product__thumb img {
    height: 48px;
  }

  .product__relatedTitle {
    font-size: var(--text-xl);
  }
}