/* Product detail — Togni's Reagent layout (design reference) */

.prod-detail-hero.prod-hero {
  display: grid;
  grid-template-columns: minmax(260px, 380px) minmax(0, 1fr);
  gap: 36px;
  align-items: start;
}

.prod-hero {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 32px;
  align-items: start;
}

.prod-hero .structure-box {
  max-width: 440px;
  width: 100%;
  justify-self: start;
  min-width: 0;
}

.structure-box {
  border: 1px solid var(--color-border);
  border-radius: 12px;
  background: #fff;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  position: relative;
  margin: 0;
}

.structure-img {
  max-width: 78%;
  max-height: 78%;
  width: auto;
  height: auto;
  object-fit: contain;
  display: block;
}

.structure-zoom {
  position: absolute;
  right: 12px;
  bottom: 12px;
  z-index: 2;
  width: 40px;
  height: 40px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.94);
  color: var(--color-muted);
  cursor: pointer;
  transition:
    color 0.15s ease,
    box-shadow 0.15s ease,
    border-color 0.15s ease;
}

.structure-zoom:hover {
  color: var(--color-primary);
  border-color: rgba(0, 140, 255, 0.35);
  box-shadow: 0 4px 14px rgba(15, 35, 55, 0.08);
}

.structure-zoom:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(0, 140, 255, 0.3);
}

.prod-detail-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px 24px;
  margin-bottom: 8px;
}

.prod-detail-titles {
  min-width: 0;
}

.prod-detail-subtitle {
  margin: 0;
  font-size: 16px;
  line-height: 1.45;
  color: var(--color-text);
  font-weight: 400;
}

.prod-detail-badges {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.prod-detail-badges img {
  display: block;
  width: 48px;
  height: 48px;
  object-fit: contain;
}

.spec-mini-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin: 20px 0 18px;
}

.spec-mini {
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 12px 14px;
  font-size: 13px;
  background: #fff;
}

.spec-mini dt {
  color: var(--color-muted);
  font-weight: 600;
  margin: 0;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.spec-mini dd {
  margin: 8px 0 0;
  font-weight: 700;
  font-size: 15px;
  color: var(--color-primary);
  line-height: 1.35;
}

.spec-mini dd a {
  color: var(--color-primary);
  text-decoration: none;
}

.spec-mini dd a:hover {
  text-decoration: underline;
}

.prod-spec-label {
  margin: 8px 0 6px;
  font-weight: 800;
  font-size: 13px;
  color: var(--color-navy);
}

.prod-spec-sizes label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 700;
  color: var(--color-text);
}

.prod-spec-sizes input[type="radio"] {
  accent-color: var(--color-primary);
  width: 16px;
  height: 16px;
}

.prod-trace-note {
  margin: 10px 0 18px;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-muted);
}

.prod-detail-cta .pd-btn-quote,
.prod-detail-cta .pd-btn-tds {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.prod-detail-cta .pd-btn-tds {
  cursor: pointer;
  font: inherit;
}

.pd-btn-quote img,
.pd-btn-tds img {
  display: block;
  flex-shrink: 0;
}

.btn-whatsapp {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 22px;
  border-radius: var(--radius-pill);
  background: var(--color-green);
  color: #fff;
  font-weight: 800;
  font-size: 14px;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: filter 0.2s ease;
}

.btn-whatsapp:hover {
  filter: brightness(1.06);
}

.btn-whatsapp:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(37, 211, 102, 0.45);
}

.prod-detail-sheet {
  margin-top: 48px;
}

.prod-detail-sheet .sheet-panel-inner {
  background: #fff;
}

.prod-tab-lead {
  margin: 0 0 16px;
  font-size: 14px;
  line-height: 1.55;
  color: var(--color-muted);
}

.prod-safety-panel {
  font-size: 14px;
  line-height: 1.55;
  color: var(--color-text);
}

.prod-safety-row {
  display: grid;
  grid-template-columns: minmax(140px, 200px) minmax(0, 1fr);
  gap: 12px 24px;
  padding: 14px 16px;
  align-items: start;
  border-bottom: 1px solid var(--color-border);
}

.prod-safety-row:last-child {
  border-bottom: none;
}

.prod-safety-row--stripe {
  background: var(--color-soft);
}

.prod-safety-label {
  font-weight: 700;
  color: var(--color-text);
  padding-top: 2px;
}

.prod-safety-value {
  min-width: 0;
  color: var(--color-text);
}

.prod-safety-value p {
  margin: 0 0 10px;
}

.prod-safety-value p:last-child {
  margin-bottom: 0;
}

.prod-safety-temp {
  font-weight: 700;
  color: var(--color-primary);
  font-size: 15px;
}

.prod-safety-value--icon img {
  display: block;
  width: 40px;
  height: 40px;
  object-fit: contain;
}

.prod-docs-grid {
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr);
  gap: 20px;
  align-items: start;
}

.prod-docs-grid__stack {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  grid-auto-rows: minmax(90px, auto);
  gap: 16px;
  justify-items: stretch;
  align-content: start;
  min-width: 0;
  width: 100%;
}

.prod-doc-card--coa {
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
}

.prod-doc-card {
  box-sizing: border-box;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #fff;
  padding: 20px 18px;
}

.prod-doc-card--file {
  width: 100%;
  min-width: 0;
  height: 90px;
  box-sizing: border-box;
  display: flex;
  align-items: center;
  padding: 12px 16px;
}

.prod-doc-card--file .prod-doc-file-row {
  align-items: center;
  width: 100%;
}

.prod-doc-card--file .prod-doc-card-title--solo {
  margin: 0 0 4px;
}

.prod-doc-card-title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
  font-size: 16px;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.25;
}

.prod-doc-title-accent {
  width: 4px;
  align-self: stretch;
  min-height: 1.1em;
  background: var(--color-primary);
  border-radius: 2px;
  flex-shrink: 0;
}

.prod-doc-card-title--solo {
  display: block;
  margin: 0 0 6px;
}

.prod-doc-card-kicker {
  margin: 0 0 10px;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-muted);
}

.prod-doc-coa-list {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
}

.prod-doc-coa-list li {
  margin-bottom: 8px;
}

.prod-doc-coa-list li:last-child {
  margin-bottom: 0;
}

.prod-doc-coa-list a {
  color: var(--color-primary);
  font-weight: 600;
  text-decoration: none;
  font-size: 14px;
}

.prod-doc-coa-list a:hover {
  text-decoration: underline;
}

.prod-doc-search-wrap {
  position: relative;
}

.prod-doc-search {
  width: 100%;
  box-sizing: border-box;
  padding: 10px 40px 10px 12px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  font: inherit;
  font-size: 14px;
  color: var(--color-text);
  background: #fff;
}

.prod-doc-search::placeholder {
  color: var(--color-muted);
}

.prod-doc-search-mag {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
  color: var(--color-muted);
}

.prod-doc-file-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.prod-doc-file-main {
  min-width: 0;
}

.prod-doc-file-meta {
  margin: 0;
  font-size: 12px;
  color: var(--color-muted);
}

.prod-doc-pdf {
  flex-shrink: 0;
  line-height: 0;
}

.prod-doc-pdf img {
  display: block;
  width: 33px;
  height: auto;
}

#sku-title {
  margin: 0 0 8px;
  color: var(--color-text);
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.radios-inline {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 20px;
  margin: 12px 0 18px;
  font-size: 13px;
  font-weight: 700;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.accent-heading {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 40px 0 16px;
  color: var(--color-navy);
  font-size: 20px;
  font-weight: 900;
}

.divider-accent {
  width: 4px;
  height: 1.1em;
  background: var(--color-primary);
  border-radius: 2px;
  flex-shrink: 0;
}

#coa-q {
  width: 100%;
  max-width: 520px;
  padding: 10px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  margin-bottom: 16px;
}

/* Extended product info — reaction intro, literature, equation (design ref 2.png) */
.prod-info {
  margin-top: 52px;
  padding-top: 8px;
  max-width: 100%;
}

.prod-info-page-title {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 32px;
  color: var(--color-text);
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.prod-info-page-title .divider-accent {
  align-self: stretch;
  min-height: 1em;
}

.prod-info-section {
  padding: 28px 0 24px;
  border-bottom: 1px solid var(--color-border);
}

.prod-info-section--last {
  border-bottom: none;
  padding-bottom: 0;
}

.prod-info-heading {
  margin: 0 0 16px;
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.3;
}

.prod-info-p {
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.65;
  color: var(--color-text);
}

.prod-info-p:last-child {
  margin-bottom: 0;
}

.prod-info-details {
  margin-top: 12px;
}

.prod-info-details summary.prod-info-expand {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  list-style: none;
  margin: 0;
  padding: 4px 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-primary);
  cursor: pointer;
  user-select: none;
  transition: color 0.15s ease;
}

.prod-info-details summary.prod-info-expand::-webkit-details-marker {
  display: none;
}

.prod-info-details summary.prod-info-expand:hover,
.prod-info-details summary.prod-info-expand:focus-visible {
  color: var(--color-primary-hover);
}

.prod-info-details summary.prod-info-expand:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px rgba(0, 140, 255, 0.35);
  border-radius: 4px;
}

.prod-info-chevron {
  flex-shrink: 0;
  transition: transform 0.2s ease;
}

.prod-info-details[open] .prod-info-chevron {
  transform: rotate(180deg);
}

.prod-info-details-inner {
  padding-top: 14px;
}

.prod-ref-list {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
}

.prod-ref-item {
  margin-bottom: 22px;
}

.prod-ref-item:last-child {
  margin-bottom: 0;
}

.prod-ref-title {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--color-text);
}

.prod-ref-meta {
  margin: 0;
  font-size: 14px;
  line-height: 1.5;
  color: var(--color-muted);
}

.prod-ref-note {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-muted);
}

.prod-info-text-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-primary);
  transition: color 0.15s ease;
}

.prod-info-text-link:hover {
  color: var(--color-primary-hover);
}

.prod-info-text-link:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px rgba(0, 140, 255, 0.35);
  border-radius: 4px;
}

.prod-info-text-link-icon {
  font-weight: 700;
}

.prod-reaction-box {
  padding: 28px 0 32px;
  box-sizing: border-box;
}

.prod-reaction-img {
  display: block;
  width: 510px;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-sizing: border-box;
}

/* Related products — [3.png], full-bleed band above footer */
.prod-detail-page.section {
  padding-bottom: 0;
}

.prod-related-bleed {
  width: 100%;
  margin: 0;
  background: var(--color-soft);
}

.prod-related-inner {
  box-sizing: border-box;
  width: calc(100% - var(--container-gutter));
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: 24px;
}

.prod-related {
  margin: 0;
  padding: 56px 0 56px;
  background: transparent;
  border-radius: 0;
}

.prod-related-heading {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 32px;
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--color-text);
  line-height: 1.2;
}

.prod-related-heading .divider-accent {
  align-self: stretch;
  min-height: 0.95em;
}

.prod-related-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.prod-related-card {
  margin: 0;
  cursor: pointer;
}

.prod-related-card-inner {
  display: flex;
  align-items: stretch;
  gap: 20px;
  min-height: 100%;
  padding: 20px 18px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-sizing: border-box;
  transition:
    border-color 0.15s ease,
    box-shadow 0.15s ease;
}

.prod-related-card:hover .prod-related-card-inner,
.prod-related-card:focus-within .prod-related-card-inner {
  border-color: var(--color-primary);
  box-shadow: 0 4px 16px rgba(15, 35, 55, 0.06);
}

.prod-related-card:hover .prod-related-name a,
.prod-related-card:focus-within .prod-related-name a {
  color: var(--color-primary);
  text-decoration: underline;
}

.prod-related-media {
  flex: 0 0 132px;
  width: 132px;
  display: flex;
  align-items: center;
  justify-content: center;
  align-self: center;
}

.prod-related-media img {
  max-width: 100%;
  max-height: 120px;
  width: auto;
  height: auto;
  object-fit: contain;
}

.prod-related-body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
}

.prod-related-name {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.35;
}

.prod-related-name a {
  color: var(--color-text);
  text-decoration: none;
  transition:
    color 0.15s ease,
    text-decoration-color 0.15s ease;
}

.prod-related-meta {
  margin: 0;
  font-size: 13px;
  line-height: 1.45;
  color: var(--color-muted);
}

.prod-related-btn {
  margin-top: 12px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  font-size: 13px;
  font-weight: 700;
  border-radius: 3px;
  border: 1px solid var(--color-primary);
  color: var(--color-primary);
  background: transparent;
  transition:
    background 0.15s ease,
    color 0.15s ease,
    border-color 0.15s ease;
}

.prod-related-btn:hover {
  background: rgba(0, 140, 255, 0.08);
}

.prod-related-btn:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(0, 140, 255, 0.35);
}

.prod-related-card:hover .prod-related-btn,
.prod-related-card:focus-within .prod-related-btn {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

.prod-related-card:hover .prod-related-btn:hover,
.prod-related-card:focus-within .prod-related-btn:hover {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  color: #fff;
}

.prod-related-btn-arrow {
  font-weight: 700;
}

@media (max-width: 1440px) {
  #sku-title {
    font-size: 30px;
  }

  .prod-detail-sheet {
    margin-top: 44px;
  }

  .prod-info-page-title {
    font-size: 30px;
  }
}

@media (max-width: 1366px) {
  #sku-title {
    font-size: 28px;
  }

  .prod-info-page-title {
    font-size: 28px;
  }

  .prod-info-heading {
    font-size: 19px;
  }
}

@media (max-width: 1280px) {
  .prod-detail-hero.prod-hero {
    grid-template-columns: minmax(240px, 340px) minmax(0, 1fr);
    gap: 28px;
  }

  #sku-title {
    font-size: 28px;
  }

  .spec-mini dd {
    font-size: 14px;
  }

  .prod-docs-grid {
    gap: 16px;
  }

  .prod-info-section {
    padding: 24px 0 20px;
  }

  .prod-reaction-box {
    padding: 24px 0 28px;
  }

  .prod-related {
    padding: 40px 0 48px;
  }

  .prod-related-heading {
    font-size: 24px;
    margin-bottom: 28px;
  }

  .prod-related-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }
}

@media (max-width: 1024px) {
  .prod-hero,
  .prod-detail-hero.prod-hero {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .prod-hero .structure-box {
    max-width: 400px;
    margin-inline: auto;
    justify-self: center;
  }

  .prod-detail-main {
    max-width: 720px;
    margin-inline: auto;
    width: 100%;
  }

  .spec-mini-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
  }

  .prod-detail-sheet {
    margin-top: 40px;
  }

  .prod-docs-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .prod-doc-card--coa {
    width: 100%;
    max-width: none;
  }

  .prod-docs-grid__stack {
    width: 100%;
  }

  .prod-doc-card--file {
    height: auto;
    min-height: 90px;
  }

  .prod-related-heading {
    font-size: 22px;
  }

  .prod-related-grid {
    gap: 16px;
  }
}

@media (max-width: 768px) {
  .spec-mini-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .prod-detail-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .prod-detail-badges {
    order: -1;
  }

  #sku-title {
    font-size: 24px;
  }

  .prod-detail-subtitle {
    font-size: 15px;
  }

  .prod-doc-card {
    padding: 18px 14px;
  }

  .prod-docs-grid__stack {
    gap: 10px;
  }

  .prod-doc-card--file {
    padding: 10px 12px;
  }

  .prod-doc-card--file .prod-doc-file-row {
    gap: 10px;
  }

  .prod-info-page-title {
    font-size: 24px;
    margin-bottom: 24px;
  }

  .prod-info-heading {
    font-size: 18px;
  }

  .prod-related-grid {
    grid-template-columns: 1fr;
  }

  .prod-related-card-inner {
    flex-direction: row;
    text-align: left;
    align-items: stretch;
  }

  .prod-related-body {
    align-items: flex-start;
  }

  .prod-related-media {
    flex: 0 0 120px;
    width: 120px;
    max-width: none;
  }
}

@media (max-width: 480px) {
  .spec-mini-grid {
    grid-template-columns: 1fr;
  }

  #sku-title {
    font-size: 22px;
  }

  .structure-zoom {
    width: 36px;
    height: 36px;
  }

  .structure-zoom svg {
    width: 18px;
    height: 18px;
  }

  .prod-detail-sheet {
    margin-top: 32px;
  }

  .prod-safety-row {
    grid-template-columns: 1fr;
    gap: 8px;
    padding: 14px 12px;
  }

  .prod-safety-label {
    padding-top: 0;
  }

  .prod-docs-grid {
    gap: 12px;
  }

  .prod-docs-grid__stack {
    gap: 8px;
  }

  .prod-doc-card {
    padding: 16px 12px;
  }

  .prod-doc-card-title {
    font-size: 15px;
  }

  .prod-info-page-title {
    font-size: 22px;
    margin-bottom: 20px;
  }

  .prod-info-section {
    padding: 20px 0 18px;
  }

  .prod-reaction-box {
    padding: 18px 0 24px;
  }

  .prod-related {
    padding: 32px 0 40px;
  }

  .prod-related-inner {
    padding-inline: 16px;
  }

  .prod-related-heading {
    font-size: 20px;
    margin-bottom: 20px;
  }

  .prod-related-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .prod-related-card-inner {
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 18px 16px;
  }

  .prod-related-media {
    flex: none;
    width: 100%;
    max-width: 200px;
  }

  .prod-related-body {
    align-items: center;
  }

  .prod-related-btn {
    margin-top: 10px;
  }
}

@media (max-width: 375px) {
  #sku-title {
    font-size: 20px;
  }

  .prod-detail-badges img {
    width: 44px;
    height: 44px;
  }

  .prod-info-page-title {
    font-size: 20px;
  }

  .prod-related-heading {
    font-size: 18px;
  }

  .prod-ref-title {
    font-size: 15px;
  }
}