/*
 * sd-product — product detail page layout (Session 4.3; Blueprint 5.18, 15.21–15.22)
 * Areas: head (label, H1, product code) · gallery (sd-product-gallery) · summary (short text, Contact SisuDent, facts).
 * Markup order: head → gallery → summary, so a phone shows the name and code first, then the pictures, then the
 * action (15.21). From 1024px: gallery 6 columns on the left (sticky), head and summary 6 columns on the right.
 * The product code is always visible next to the name (5.17); no price, cart, or quantity (5.19).
 * Also: sd-product-details (description + characteristics + technical table) and sd-category-nav (category chips row).
 */

.sd-product {
  display: grid;
  grid-template-areas: "head" "gallery" "summary";
  gap: var(--sd-space-5);
}

.sd-product__head { grid-area: head; display: grid; gap: var(--sd-space-3); }
.sd-product__gallery { grid-area: gallery; }
.sd-product__summary { grid-area: summary; display: grid; gap: var(--sd-space-5); align-content: start; }

@media (min-width: 640px) {
  .sd-product__gallery { max-width: 32rem; }
}

@media (min-width: 1024px) {
  .sd-product {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    grid-template-areas: "gallery gallery gallery gallery gallery gallery head head head head head head"
                         "gallery gallery gallery gallery gallery gallery summary summary summary summary summary summary";
    grid-template-rows: auto 1fr;
    column-gap: var(--sd-grid-gutter);
    row-gap: var(--sd-space-5);
  }
  .sd-product__gallery {
    max-width: none;
    position: sticky;
    top: calc(var(--sd-scroll-offset) + var(--sd-space-2));
    align-self: start;
  }
  .sd-product__head { padding-left: var(--sd-space-5); }
  .sd-product__summary { padding-left: var(--sd-space-5); }
}

.sd-product__title { max-width: 20ch; }

/* Product code: always next to the name; tabular figures; copy-friendly (selectable text) */
.sd-product__code {
  display: inline-flex;
  align-items: baseline;
  gap: var(--sd-space-2);
  justify-self: start;
  padding: var(--sd-space-1) var(--sd-space-3);
  border: var(--sd-border-width) solid var(--sd-color-card-divider);
  border-radius: var(--sd-radius-sm);
  background: var(--sd-color-white);
  font-size: var(--sd-font-size-body);
  font-variant-numeric: tabular-nums;
}

.sd-product__code-label {
  font-size: var(--sd-font-size-small);
  color: var(--sd-color-text-muted);
}

.sd-product__code-value {
  font-weight: var(--sd-font-weight-semibold);
  color: var(--sd-color-text-heading);
  letter-spacing: 0.02em;
}

.sd-product__lead { max-width: 36rem; }

/* Action row: Contact SisuDent + a short note on how inquiries work */
.sd-product__action { display: grid; gap: var(--sd-space-2); justify-items: start; }
.sd-product__action-note { font-size: var(--sd-font-size-small); color: var(--sd-color-text-muted); max-width: 30rem; }

/* ---------- Details: description · characteristics · technical information ---------- */

.sd-product-details {
  display: grid;
  gap: var(--sd-space-6);
}

@media (min-width: 1024px) {
  .sd-product-details { grid-template-columns: 7fr 5fr; column-gap: var(--sd-space-8); }
}

.sd-product-details__block { display: grid; gap: var(--sd-space-3); align-content: start; }

.sd-product-details__list {
  display: grid;
  gap: var(--sd-space-2);
  margin: 0;
  padding: 0;
  list-style: none;
}

.sd-product-details__list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--sd-space-2);
  align-items: start;
}

.sd-product-details__list svg {
  width: 1.25rem;
  height: 1.25rem;
  margin-top: 0.15rem;
  color: var(--sd-color-brand-blue);
}

/* ---------- Category navigation row: chips for sibling categories (current = aria-current) ---------- */

.sd-category-nav { display: grid; gap: var(--sd-space-2); margin-bottom: var(--sd-space-6); }
.sd-category-nav__title { font-size: var(--sd-font-size-small); color: var(--sd-color-text-muted); }

/* Group heading above a card row or grid, with a count on the right */
.sd-group-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--sd-space-2) var(--sd-space-4);
  margin-bottom: var(--sd-space-5);
}

.sd-group-head + .sd-product-grid,
.sd-group-head + .sd-cols { margin-top: 0; }

.sd-group + .sd-group { margin-top: var(--sd-subsection-space); }

/* ---------- Card lists: category, subcategory and product-category cards in sd-cols rows ---------- */

.sd-card-list { margin: 0; padding: 0; list-style: none; }
.sd-card-list > li { display: grid; }
.sd-card-list__more { margin-top: var(--sd-space-5); }

/* Subcategory card: the main image of its first product (Blueprint 5.16) on white, 4:3 frame */
.sd-card--subcategory .sd-card__media img { padding: var(--sd-space-3); }

/* Two-column introduction rows (text 6 / content 6 from 1024px) */
.sd-product-intro { row-gap: var(--sd-space-5); align-items: start; }
.sd-product-intro .sd-section-header { margin-bottom: 0; }

/* Section header beside a tile row (4 / 8 columns from 1024px; stacked below) — both tile rows fit one laptop screen */
.sd-tiles-row { row-gap: var(--sd-space-5); align-items: start; }
.sd-tiles-row .sd-section-header { margin-bottom: 0; }
@media (min-width: 1024px) { .sd-tiles-row .sd-tiles { max-width: 44rem; margin-left: auto; } }   /* tiles ≤ about 225px: two rows ≈ 470px */

/* Eyebrow category link: 44 px touch target (Blueprint 15.27; Session 5.2, R-04) */
.sd-product__head .sd-label a {
  display: inline-flex;
  align-items: center;
  min-height: var(--sd-target-min);
}