/* product.css - BDL Product Page Styles */

/* ============================================
   TYPE SYSTEM (product pages only) — Batch 24
   product.css is loaded only on product pages, so this scopes cleanly.
   Inter Tight = body/UI; EB Garamond = editorial text + spec values;
   Cormorant (--font-display) untouched for titles + intro line.
   ============================================ */
body {
  --font-body: 'Inter Tight', 'Helvetica Neue', sans-serif;
  --font-text: 'EB Garamond', 'Georgia', serif;
}

/* ============================================
   PRODUCT PAGE - SHARED NAV (SCROLLED STATE)
   ============================================ */
.nav--product {
  background-color: oklch(from var(--color-bg) l c h / 0.94);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 var(--color-divider);
  padding-block: var(--space-4);
}

.nav--product .nav__links a {
  color: var(--color-text-muted);
}

/* ============================================
   BREADCRUMB - tightened spacing (#8)
   ============================================ */
.breadcrumb {
  padding-top: calc(80px + var(--space-4));
  padding-bottom: var(--space-3);
}

.breadcrumb__trail {
  font-family: var(--font-body);
  font-size: 0.6rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-faint);
}

.breadcrumb__trail a {
  color: var(--color-text-faint);
  text-decoration: none;
  transition: color var(--transition-interactive);
}

.breadcrumb__trail a:hover {
  color: var(--color-primary);
}

.breadcrumb__sep {
  margin-inline: var(--space-2);
  opacity: 0.5;
}

/* ============================================
   PRODUCT DETAIL — two-column layout
   Left column: stacked native-ratio images.
   Right column: title, description, specs.
   ============================================ */
.product-detail {
  padding-block: clamp(var(--space-16), 8vw, var(--space-24));
}

.product-detail__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-16);
}

@media (min-width: 768px) {
  .product-detail__grid {
    grid-template-columns: minmax(0, 520px) minmax(0, 1fr);
    gap: clamp(var(--space-12), 6vw, var(--space-24));
    align-items: start;
  }
}

/* Left column: media stack (hero frame + thumbs) */
.product-detail__media {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  min-width: 0;
}

/* Hero frame — fixed 1:1 ratio, parchment bg, layered images via .is-active */
.product-detail__hero-frame {
  position: relative;
  aspect-ratio: 1 / 1;
  background: var(--color-bg);
  overflow: hidden;
  width: 100%;
  touch-action: pan-y; /* vertical pan stays native; horizontal swipe is the carousel's (iOS) */
}

.product-detail__hero-frame .product-hero__image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
  cursor: zoom-in;
}

.product-detail__hero-frame .product-hero__image:not(.is-active) {
  display: none;
}

/* Arrow overlays — low opacity by default, full on hover/focus */
.product-detail__arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 2;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--color-text);
  opacity: 0.35;
  transition: opacity 0.2s ease;
}

.product-detail__arrow:hover,
.product-detail__arrow:focus-visible {
  opacity: 1;
  outline: none;
}

.product-detail__arrow svg {
  width: 24px;
  height: 24px;
}

.product-detail__arrow--prev { left: var(--space-3); }
.product-detail__arrow--next { right: var(--space-3); }

/* Thumbnail strip — 64px squares, active = full opacity */
.product-detail__thumbs {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-2);
  margin: 0;
  padding: 0;
}

.product-detail__thumb {
  width: 64px;
  height: 64px;
  flex: 0 0 64px;
  padding: 0;
  background: transparent;
  border: none;
  cursor: pointer;
  overflow: hidden;
  opacity: 0.5;
  transition: opacity 0.2s ease;
}

.product-detail__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.product-detail__thumb.is-active,
.product-detail__thumb:hover,
.product-detail__thumb:focus-visible {
  opacity: 1;
  outline: none;
}

/* Single-photo pages: arrows + thumbs hidden via data attribute */
.product-detail__media[data-photo-count="1"] .product-detail__arrow,
.product-detail__media[data-photo-count="1"] .product-detail__thumbs {
  display: none;
}

/* Right column: info flow */
.product-detail__info {
  min-width: 0;
}

/* ============================================
   PRODUCT INFO (inner blocks — primary/specs)
   ============================================ */
/* Left column: name, description */
.product-info__primary {
  max-width: 560px;
}

.product-info__name {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 300;
  line-height: 1.05;
  letter-spacing: -0.01em;
  color: var(--color-text);
  margin-bottom: var(--space-3);
}

.product-info__type {
  font-family: var(--font-body);
  font-size: 0.65rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-6);
}

/* Eyebrow line (category · sub-category · year) — Batch 21 */
.product-info__eyebrow {
  font-family: var(--font-body);
  font-size: 0.65rem;
  font-weight: 400;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-5);
  display: block;
}

/* Italic word inside the product title — Batch 21 */
.product-info__name em {
  font-style: italic;
}

/* Italic serif intro one-liner under the title — Batch 21 */
.product-info__intro {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-style: italic;
  font-weight: 400;
  line-height: 1.4;
  color: var(--color-text-muted);
  letter-spacing: 0.01em;
  margin-bottom: var(--space-6);
}

.product-info__description {
  font-family: var(--font-text);
  font-size: var(--text-base);
  font-weight: 400;
  line-height: 1.7;
  color: var(--color-text);
  letter-spacing: 0.01em;
}

.product-info__description p {
  margin-bottom: var(--space-6);
}

.product-info__description p:last-child {
  margin-bottom: 0;
}

/* Right column: specs */
.product-info__specs {
  margin-top: var(--space-10);
  padding-top: var(--space-10);
  border-top: 1px solid var(--color-divider);
  container-type: inline-size;
}

/* ============================================
   SPEC BLOCKS (Dimensions, Finishes, Lead Time)
   ============================================ */
.spec-block {
  margin-bottom: var(--space-10);
}

.spec-block:last-child {
  margin-bottom: 0;
}

.spec-block__label {
  font-family: var(--font-body);
  font-size: 0.6rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-2);
  display: block;
}

.spec-block__value {
  font-family: var(--font-text);
  font-size: var(--text-base);
  font-weight: 400;
  color: var(--color-text-muted);
  line-height: 1.7;
  letter-spacing: 0.01em;
}

/* Dimensions table */
.dim-table {
  width: 100%;
  border-collapse: collapse;
}

.dim-table tr {
  border-bottom: 1px solid var(--color-divider);
}

.dim-table tr:last-child {
  border-bottom: none;
}

.dim-table td {
  font-family: var(--font-text);
  font-size: var(--text-base);
  font-weight: 300;
  color: var(--color-text-muted);
  padding-block: var(--space-3);
  vertical-align: top;
  letter-spacing: 0.01em;
}

.dim-table td:first-child {
  font-weight: 400;
  color: var(--color-text);
  padding-right: var(--space-8);
  white-space: nowrap;
}

.dim-table td:last-child {
  color: var(--color-text-muted);
}

.dim-table .dim-metric {
  display: block;
  font-size: var(--text-base);
  color: var(--color-text-faint);
  margin-top: 2px;
}

/* Single dimension line (for products with one size) */
.dim-single {
  font-family: var(--font-text);
  font-size: var(--text-base);
  font-weight: 400;
  color: var(--color-text-muted);
  line-height: 1.7;
  letter-spacing: 0.01em;
}

.dim-single .dim-metric {
  display: block;
  font-size: var(--text-base);
  color: var(--color-text-faint);
  margin-top: 2px;
}

/* Two-column spec layout when the specs column has room.
   Container query keyed to .product-info__specs (container-type set above). */
@container (min-width: 400px) {
  .spec-block {
    display: grid;
    grid-template-columns: 7rem minmax(0, 1fr);
    column-gap: var(--space-6);
    align-items: baseline;
  }
  .spec-block__label {
    margin-bottom: 0;
  }
}

/* ============================================
   FINISH LIST & NOTE
   ============================================ */
.finish-list {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 300;
  color: var(--color-text-muted);
  line-height: 1.8;
  letter-spacing: 0.01em;
}

.finish-note {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-style: italic;
  color: var(--color-text-faint);
  margin-top: var(--space-3);
  line-height: 1.6;
}

/* ============================================
   CUSTOMIZATION NOTE
   ============================================ */
.custom-note {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 300;
  color: var(--color-text-faint);
  letter-spacing: 0.05em;
  font-style: italic;
  margin-top: var(--space-8);
}

/* ============================================
   PRODUCT CTA - PROMINENT SECTION (#6)
   ============================================ */
.product-cta {
  padding-top: clamp(var(--space-16), 8vw, var(--space-24));
  padding-bottom: var(--space-6);
  border-top: 1px solid var(--color-divider);
}

.product-cta__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  text-align: center;
}

.product-cta__enquire {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-12);
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-text);
  border-radius: 2px;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 400;
  letter-spacing: 0.12em;
  text-decoration: none;
  min-height: 52px;
  transition:
    background var(--transition-interactive),
    color var(--transition-interactive),
    transform var(--transition-interactive),
    box-shadow var(--transition-interactive);
}

.product-cta__enquire:hover {
  background: var(--color-text);
  color: var(--color-text-inverse);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.product-cta__enquire:active {
  transform: translateY(0);
}

.product-cta__email {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: 0.65rem;
  font-weight: 400;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 1px solid var(--color-divider);
  transition: color var(--transition-interactive), border-color var(--transition-interactive);
}

.product-cta__email:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
}

/* ============================================
   LINE DRAWING - LARGER, LESS FADED (#4)
   ============================================ */
.product-line-drawing {
  padding-block: clamp(var(--space-16), 8vw, var(--space-24));
  text-align: center;
  border-top: 1px solid var(--color-divider);
}

.product-line-drawing img {
  display: inline-block;
  width: 200px;
  height: auto;
  opacity: 0.55;
  filter: brightness(0.3);
}

/* ============================================
   PRODUCT NAV - NEXT/PREVIOUS (#7)
   ============================================ */

/* ============================================
   BACK NAVIGATION
   ============================================ */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: 0.6rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  text-decoration: none;
  transition: color var(--transition-interactive);
  margin-bottom: var(--space-3);
}

.back-link:hover {
  color: var(--color-primary);
}

.back-link svg {
  transition: transform var(--transition-interactive);
}

.back-link:hover svg {
  transform: translateX(-3px);
}

/* ============================================
   PRODUCT FOOTER
   ============================================ */
.product-footer {
  padding-block: var(--space-8);
  border-top: 1px solid var(--color-divider);
}

.product-footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.product-footer__copy {
  font-family: var(--font-body);
  font-size: 0.6rem;
  font-weight: 300;
  letter-spacing: 0.1em;
  color: var(--color-text-faint);
}

/* Footer social icons — Instagram + LinkedIn glyphs (Batch 35b) */
.product-footer__socials {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
}

.product-footer__social {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-1);
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition-interactive);
}

.product-footer__social svg {
  width: 20px;
  height: 20px;
  display: block;
}

.product-footer__social:hover {
  color: var(--color-text);
}

/* ============================================
   DRAWING HERO - Collection pages without photography
   ============================================ */
.product-drawings-hero {
  background: var(--color-surface);
  padding-block: clamp(var(--space-16), 8vw, var(--space-24));
}

.product-drawings-hero__grid {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: clamp(var(--space-8), 5vw, var(--space-20));
  padding-inline: clamp(var(--space-8), 6vw, var(--space-24));
  max-width: 860px;
  margin-inline: auto;
}

.product-drawings-hero__grid img {
  flex: 1;
  max-width: 200px;
  height: auto;
  filter: brightness(0.18);
  opacity: 0.88;
}

.product-drawings-hero__grid img.drawing--primary {
  max-width: 260px;
}

/* Pieces grid - all items in a collection */
.product-pieces {
  padding-block: clamp(var(--space-16), 8vw, var(--space-24));
  border-top: 1px solid var(--color-divider);
}

.product-pieces__heading {
  font-family: var(--font-body);
  font-size: 0.6rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-10);
  display: block;
}

.product-pieces__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  gap: var(--space-10) var(--space-6);
}

/* Link wrapper around each tile so the whole card is clickable. */
.product-piece-link {
  display: block;
  text-decoration: none;
  color: inherit;
  cursor: pointer;
  transition: opacity 200ms ease;
}

.product-piece-link:hover .product-piece img,
.product-piece-link:focus-visible .product-piece img {
  opacity: 1;
}

.product-piece-link:hover .product-piece__name,
.product-piece-link:focus-visible .product-piece__name {
  color: var(--color-text);
}

.product-piece-link:focus-visible {
  outline: 2px solid currentColor;
  outline-offset: 2px;
  border-radius: 2px;
}

.product-piece {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
}

.product-piece img {
  width: 80px;
  height: 80px;
  object-fit: contain;
  filter: brightness(0.2);
  opacity: 0.85;
}

.product-piece__name {
  font-family: var(--font-body);
  font-size: 0.5rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  text-align: center;
  line-height: 1.4;
}

/* ============================================
   PRODUCT NOTES - page-bottom footnote (Batch 12)
   ============================================ */
.product-notes {
  padding-top: var(--space-4);
  padding-bottom: clamp(var(--space-8), 4vw, var(--space-12));
}

.product-notes .container {
  max-width: 640px;
}

.product-notes p {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-style: italic;
  font-weight: 300;
  color: var(--color-text-faint);
  line-height: 1.6;
  letter-spacing: 0.02em;
  text-align: center;
}

.product-notes p + p {
  margin-top: var(--space-3);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 767px) {
  .nav__links { display: none; }
  .nav__hamburger { display: flex; }

  /* Wave 5: 44px tap target for breadcrumb links — Pattern C (visual unchanged) */
  .breadcrumb__trail a {
    display: inline-block;
    position: relative;
    padding-block: 14px;
    padding-inline: 4px;
    margin-block: -14px;
    margin-inline: -4px;
  }

  /* Wave 5.1: 44px tap target for "All Works" back-link — pseudo-element Pattern C
     (preserves existing inline-flex + gap so the SVG arrow and label stay spaced) */
  .back-link {
    position: relative;
  }
  .back-link::before {
    content: '';
    position: absolute;
    inset: -16px -8px;
  }

  .product-drawings-hero__grid {
    gap: var(--space-6);
  }

  .product-drawings-hero__grid img {
    max-width: 90px;
  }

  .product-drawings-hero__grid img.drawing--primary {
    max-width: 120px;
  }

  .product-pieces__grid {
    grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    gap: var(--space-8) var(--space-4);
  }

  /* gallery mobile now in lightbox.css */

  .product-cta__enquire {
    width: 100%;
  }

  .product-footer__inner {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
  }
  /* 44px tap target on mobile (icons stay 20px, centered) */
  .product-footer__social { min-width: 44px; min-height: 44px; }
}


/* ---- Product pager (prev / next) — Batch 31 ---- */
.product-pager {
  border-top: 1px solid var(--color-divider);
  padding-block: clamp(var(--space-8), 4vw, var(--space-12));
}
.product-pager__inner {
  display: flex;
  align-items: stretch;
  justify-content: space-between;
  gap: var(--space-4);
}
.product-pager__link {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex: 1 1 0;
  min-width: 0;
  min-height: 44px;
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-md);
  color: var(--color-text);
  text-decoration: none;
  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}
.product-pager__link--next {
  flex-direction: row-reverse;
  text-align: right;
}
.product-pager__link:hover {
  border-color: var(--color-text);
  background-color: var(--color-surface-offset);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.product-pager__thumb {
  flex: 0 0 auto;
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.product-pager__thumb img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.product-pager__meta {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}
.product-pager__dir {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-faint);
}
.product-pager__name {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  line-height: 1.2;
}
@media (max-width: 600px) {
  .product-pager__inner { gap: var(--space-2); }
  .product-pager__link { gap: var(--space-3); padding: var(--space-2) var(--space-3); }
  .product-pager__thumb { width: 48px; height: 48px; }
  .product-pager__name { font-size: var(--text-base); }
}