/* NOTE: Material catalogue — one-page list with search, group jumps, and image/text rows. */

/*
 * NOTE: Body overflow-x:hidden breaks position:sticky in Chromium. On this page,
 * use clip + let the document scroller handle Y so the group TOC can pin to top.
 */
body.katalog-page.single-page-body {
  overflow-x: clip;
  overflow-y: visible;
}

/* NOTE: Catalogue thumbnail + paid PDF Stripe CTA above the breadcrumb. */
.katalog-pdf-cta {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  margin-top: 1.5rem;
  text-decoration: none;
  color: inherit;
  max-width: 36rem;
}

/* NOTE: Light pad behind the book cover. */
.katalog-pdf-cta__cover-wrap {
  flex-shrink: 0;
  display: inline-flex;
  padding: 0.65rem;
  background: var(--surface-panel);
  border-radius: 14px;
}

.katalog-pdf-cta__cover {
  display: block;
  width: 9rem;
  height: auto;
  aspect-ratio: 595 / 842;
  object-fit: cover;
  border-radius: 6px;
  /* NOTE: Subtle drop shadow so the cover reads as a book on the pad. */
  box-shadow: 0 10px 22px rgba(0, 0, 0, 0.16);
}

.katalog-pdf-cta__copy {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.55rem;
  min-width: 0;
}

/* NOTE: Price under the PDF CTA button. */
.katalog-pdf-cta__price {
  font-size: var(--font-size-body-sm);
  font-weight: var(--font-weight-semibold);
  line-height: 1.2;
}

.katalog-pdf-cta__desc {
  font-size: var(--font-size-body-sm);
  line-height: var(--line-height-relaxed);
  opacity: 0.7;
}

/* NOTE: Post-payment download row on /katalog/last-ned (Stripe redirect target). */
.katalog-pdf-download {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  margin-top: 1.5rem;
  max-width: 36rem;
}

@media (max-width: 640px) {
  .katalog-pdf-cta,
  .katalog-pdf-download {
    align-items: flex-start;
  }

  .katalog-pdf-cta__cover {
    width: 7rem;
  }
}

.katalog-page .breadcrumb {
  margin-top: 1.25rem;
}

.katalog-page .section-lead + .section-lead {
  margin-top: 0.85rem;
}

/* NOTE: Search field directly under the breadcrumb. */
.katalog-search {
  margin-top: 1.5rem;
  max-width: 32rem;
}

/* NOTE: Hub index — one interactive link per material type. */
.katalog-type-nav {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
  margin-top: 2rem;
  max-width: 42rem;
}

.katalog-type-link {
  display: block;
  text-decoration: none;
  color: inherit;
  padding-bottom: 1.75rem;
  border-bottom: 1px solid var(--border-neutral);
}

.katalog-type-link:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.katalog-type-link__title {
  margin: 0 0 0.5rem;
  font-size: var(--font-size-body-md);
  font-weight: var(--font-weight-extrabold);
  letter-spacing: var(--letter-spacing-tight-heading);
  line-height: var(--line-height-title);
  text-transform: uppercase;
  color: var(--color-white);
}

.katalog-type-link__desc {
  margin: 0 0 0.55rem;
  font-size: var(--font-size-body-sm);
  line-height: var(--line-height-relaxed);
  opacity: 0.75;
}

.katalog-type-link__materials {
  margin: 0;
  font-size: var(--font-size-body-sm);
  line-height: var(--line-height-relaxed);
  opacity: 0.55;
}

.katalog-type-link__materials-label {
  font-weight: var(--font-weight-semibold);
  opacity: 0.9;
}

.katalog-type-link:hover .katalog-type-link__title,
.katalog-type-link:focus-visible .katalog-type-link__title {
  color: var(--color-primary);
}

/* NOTE: Type-page group intro under the section title. */
.katalog-group__desc {
  margin: -0.5rem 0 0.75rem;
  max-width: 40rem;
  font-size: var(--font-size-body-md);
  line-height: var(--line-height-relaxed);
  opacity: 0.8;
}

.katalog-group__materials {
  margin: 0 0 1.75rem;
  max-width: 40rem;
  font-size: var(--font-size-body-sm);
  line-height: var(--line-height-relaxed);
  opacity: 0.6;
}

.katalog-group__materials-label {
  font-weight: var(--font-weight-semibold);
  opacity: 0.9;
}

/* NOTE: Left group jumps + right long material list. */
.katalog-layout {
  display: grid;
  grid-template-columns: minmax(7rem, 10rem) minmax(0, 1fr);
  gap: 2rem 2.5rem;
  margin-top: 2rem;
  align-items: start;
}

/* NOTE: Height placeholder while the group nav is fixed to the viewport. */
.katalog-toc-sentinel {
  width: 100%;
  height: 0;
  pointer-events: none;
}

/* NOTE: Sticky group nav — pins to viewport top while scrolling the material list. */
.katalog-toc {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  background: var(--bg-page-canvas);
  padding: 0.75rem 0;
  box-sizing: border-box;
}

/* NOTE: Fixed pin used when CSS sticky is blocked by ancestor overflow. */
.katalog-toc.is-stuck {
  position: fixed;
  top: 0;
  margin: 0;
  padding-top: 0.85rem;
  padding-bottom: 0.85rem;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
}

.katalog-toc__link {
  color: rgba(255, 255, 255, 0.35);
  text-decoration: none;
  font-size: var(--font-size-body-sm);
  font-weight: var(--font-weight-extrabold);
  letter-spacing: var(--letter-spacing-tight-heading);
  line-height: var(--line-height-title);
  text-transform: uppercase;
  transition: color 0.15s ease;
}

.katalog-toc__link:hover,
.katalog-toc__link:focus-visible {
  color: rgba(255, 255, 255, 0.7);
}

/* NOTE: Active group in view — full white; others stay grey. */
.katalog-toc__link.is-active {
  color: var(--color-white);
}

.katalog-list {
  display: flex;
  flex-direction: column;
  gap: 3rem;
  min-width: 0;
}

.katalog-group__title {
  margin: 0 0 1.5rem;
  font-size: var(--font-size-big-text);
  font-weight: var(--font-weight-extrabold);
  letter-spacing: var(--letter-spacing-tight-heading);
  line-height: var(--line-height-big-text);
  text-transform: uppercase;
  opacity: 0.2;
}

.katalog-group__list {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

/* NOTE: One material per row — square image left, text and properties right. */
.katalog-material {
  display: grid;
  grid-template-columns: minmax(8rem, 14rem) minmax(0, 1fr);
  gap: 1rem 1.5rem;
  align-items: start;
  margin: 0;
}

.katalog-material__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1;
  object-fit: cover;
  background: var(--color-black);
  border: 1px solid var(--border-card);
}

.katalog-material__title {
  margin: 0 0 0.5rem;
  font-size: var(--font-size-section-title);
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-height-title);
  letter-spacing: var(--letter-spacing-tight-heading);
}

.katalog-material__text {
  margin: 0;
  font-size: var(--font-size-body-md);
  line-height: var(--line-height-relaxed);
}

/* NOTE: Property rows as plain text — bold label, normal value, no bullet markers. */
.katalog-material__props {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-top: 1rem;
}

.katalog-material__prop {
  display: grid;
  grid-template-columns: minmax(7rem, 11rem) minmax(0, 1fr);
  gap: 0.35rem 1rem;
  align-items: baseline;
}

.katalog-material__label {
  font-size: var(--font-size-body-sm);
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-height-relaxed);
}

.katalog-material__value {
  font-size: var(--font-size-body-sm);
  font-weight: var(--font-weight-regular);
  line-height: var(--line-height-relaxed);
}

/* NOTE: Hidden sprite used by 1–5 material rating icons. */
.katalog-icon-sprite {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

/* NOTE: Icon meters for Fleksibilitet, Styrke, Pris, Gjenvinning (filled + grey rest). */
.katalog-material__prop:has(.katalog-rating) {
  align-items: center;
}

.katalog-rating {
  display: inline-flex;
  align-items: center;
  gap: 0.18rem;
}

.katalog-rating__icon {
  display: inline-flex;
  width: 1.05rem;
  height: 1.05rem;
  color: currentColor;
  opacity: 0.22;
}

.katalog-rating__icon.is-on {
  opacity: 1;
}

.katalog-rating__icon svg {
  display: block;
  width: 100%;
  height: 100%;
}

/* NOTE: Recycle leaf fills use green when active; inactive stay grey via opacity. */
.katalog-rating--recycle .katalog-rating__icon.is-on {
  color: #2f7a3e;
}

/* NOTE: Conductivity lightning — blue when active. */
.katalog-rating--conductivity .katalog-rating__icon.is-on {
  color: #2f6fed;
}

/* NOTE: Heat-wave strokes — red-orange when active. */
.katalog-rating--heat .katalog-rating__icon.is-on {
  color: #e85d04;
}

.katalog-empty {
  margin: 0;
  font-size: var(--font-size-body-md);
  line-height: var(--line-height-relaxed);
  opacity: 0.6;
}

.katalog-group[hidden],
.katalog-material[hidden] {
  display: none;
}

@media (max-width: 1024px) {
  .katalog-layout {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  /* NOTE: Keep sticky on small screens as a horizontal bar at the top. */
  .katalog-toc {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 0.75rem 1.25rem;
  }

  .katalog-toc.is-stuck {
    padding-left: var(--page-gutter);
    padding-right: var(--page-gutter);
  }
}

@media (max-width: 768px) {
  .katalog-material {
    grid-template-columns: 1fr;
  }

  .katalog-material__img {
    width: min(100%, 12rem);
  }

  .katalog-material__prop {
    grid-template-columns: minmax(6rem, 9rem) minmax(0, 1fr);
  }

  .katalog-group__title {
    font-size: clamp(2rem, 12vw, var(--font-size-big-text));
  }
}