/* Base layout: center the page content */
html, body {
  height: 100%;
}
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color: #0A0A0A;
  background: #FFFFFF;
  display: flex;
  flex-direction: column;
}

/* Page wrapper: centers and constrains width */
.page {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;          /* centers the main content */
  padding: 24px 16px 48px; /* breathing room */
  flex: 1 0 auto;
}

/* Product detail uses responsive grid */
.product-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  padding-top: 24px;
  border-top: 1px solid #E0E0E0;
}

.product-gallery {
  align-self: start;
}
.main-image img {
  display: block;
  width: 100%;
  max-height: 480px;
  object-fit: contain;
  border-radius: 8px;
  background-color: #FAFAFA;
  border: 1px solid #E0E0E0;
}
.image-thumbnails {
  display: flex;
  gap: 10px;
  margin-top: 12px;
}
.image-thumbnails img {
  width: 64px;
  height: 64px;
  object-fit: contain;
  border-radius: 6px;
  cursor: pointer;
  border: 1px solid #E0E0E0;
  padding: 4px;
  transition: transform .15s ease, border-color .15s ease;
}
.image-thumbnails img:hover {
  transform: translateY(-2px);
}
.image-thumbnails img.active {
  border-color: #000000;
}

.product-info {
  align-self: start;
}

.product-title {
  font-size: 28px;
  line-height: 1.2;
  font-weight: 700;
  margin: 0 0 8px;
  color: #0A0A0A;
}
.product-description {
  font-size: 14px;
  color: #4D4D4D;
  margin: 0 0 16px;
}

.price-range .price {
  font-size: 22px;
  font-weight: 800;
  color: #0A0A0A;
  margin: 12px 0 4px;
}

/* Variants */
.variant-section {
  margin-top: 16px;
}
.variant-label {
  display: block;
  font-weight: 600;
  margin-top: 12px;
  margin-bottom: 6px;
  color: #0A0A0A;
}
.variant-options {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.variant-btn {
  appearance: none;
  background-color: #FFFFFF;
  color: #0A0A0A;
  border: 1px solid #E0E0E0;
  padding: 8px 14px;
  font-size: 14px;
  border-radius: 9999px;
  cursor: pointer;
  transition: background-color .15s ease, border-color .15s ease, transform .05s ease;
}
.variant-btn:hover {
  background-color: #F2F2F2;
  border-color: #CFCFCF;
}
.variant-btn[aria-pressed="true"] {
  border-color: #000000;
  outline: 2px solid #000000;
  outline-offset: 1px;
}



/* Quantity */
.quantity-section {
  margin-top: 20px;
}
.quantity-control {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.qty-btn {
  padding: 6px 12px;
  border: 1px solid #000;
  background: transparent;
  cursor: pointer;
  font-weight: 700;
  border-radius: 6px;
  line-height: 1;
}
.quantity-control input {
  width: 56px;
  text-align: center;
  padding: 8px 6px;
  border: 1px solid #E0E0E0;
  border-radius: 6px;
}
.stock-info {
  display: block;
  font-size: 13px;
  color: #4D4D4D;
  margin-top: 6px;
}

/* CTA buttons */
.action-buttons {
  display: flex;
  gap: 16px;
  margin-top: 28px;
}
.btn-solid,
.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 10px;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
  user-select: none;
  transition: transform .05s ease, box-shadow .15s ease;
}
.btn-solid {
  background-color: #000000;
  color: #FFFFFF;
  border: 1px solid #000000;
}
.btn-solid:active,
.btn-outline:active {
  transform: translateY(1px);
}
.btn-outline {
  background: transparent;
  color: #000000;
  border: 1px solid #000000;
}

/* Responsive: stack columns on smaller screens */
@media (max-width: 992px) {
  .product-detail {
    grid-template-columns: 1fr;
  }
  .product-gallery {
    order: 1;
  }
  .product-info {
    order: 2;
  }
}