/* Shared visual alignment layer; intentionally independent of business logic. */
:root { --align-control-height: 44px; --align-section-gap: 32px; }

/* Front office: consistent baselines, control boxes and card action positions. */
button, input, select, textarea { font-family: inherit; }
:where(.shell, .product-summary, .checkout-products, .checkout-summary) { min-width: 0; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: var(--align-control-height); line-height: 1.4; text-align: center; }
.button > :is(svg, span) { flex-shrink: 0; }
.header-actions { align-items: center; gap: 12px; }
.header-actions > :is(.header-contact, .header-cart) { display: inline-flex; align-items: center; justify-content: center; height: var(--align-control-height); min-height: var(--align-control-height); margin-block: 0; line-height: 1.4; }
.main-nav > a { display: inline-flex; align-items: center; gap: 8px; line-height: 1.4; }
.breadcrumb { align-items: center; line-height: 1.5; }
.breadcrumb i { flex: 0 0 auto; line-height: 1; }
.home-actions, .business-actions, .display-consult__actions { align-items: center; gap: 12px; }
.section-heading, .home-section-heading, .display-section__heading { align-items: baseline; }
.section-heading > :is(h2, p), .home-section-heading > :is(h2, p) { margin-top: 0; }
.search-result { align-items: start; gap: 16px 24px; }
.search-purchase { min-width: 0; }
.search-result > span { margin-top: 0; line-height: 1.6; }
.home-hero__facts dd, .summary-facts dd, .source-facts dd, .about-business-profile dd { margin-inline: 0; }
.catalog-product-section__heading { align-items: baseline; gap: 16px; }
.series-heading { align-items: baseline; gap: 8px 16px; }
.filtered-catalog .category-jump-nav a { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.filtered-catalog .category-jump-nav a small { flex: 0 0 auto; min-width: 3ch; text-align: right; font-variant-numeric: tabular-nums; }

.product-card { display: flex; flex-direction: column; min-width: 0; }
.product-card__visual { flex: 0 0 auto; }
.product-card__body, .home-product-card__meta { display: flex; flex-direction: column; flex: 1; min-width: 0; }
.product-card__body h3, .home-product-card__meta h3 { min-height: 3.2em; line-height: 1.6; margin-block: 0 12px; }
.product-card__facts { margin-block: 0 16px; }
.product-card__facts > div { display: grid; grid-template-columns: 5em minmax(0, 1fr); align-items: baseline; gap: 8px; }
.product-card__facts dd { margin: 0; overflow-wrap: anywhere; }
.product-card__body > .purchase-price, .home-product-card__meta > .purchase-price { margin-top: auto; padding-top: 12px; }
.card-purchase { display: grid; grid-template-columns: minmax(0, 1fr); gap: 12px; }
.card-purchase > .purchase-variant, .card-purchase__add { margin: 0; }
.purchase-variant { display: grid; gap: 8px; min-width: 0; }
.purchase-variant select { width: 100%; min-width: 0; min-height: var(--align-control-height); padding: 8px 12px; line-height: 1.4; }
.purchase-row { align-items: center; gap: 8px; }
.purchase-unit { display: inline-flex; align-items: center; min-height: var(--align-control-height); line-height: 1; }
.quantity-control { display: inline-grid; grid-template-columns: 32px minmax(52px, 1fr) 32px; width: 136px; height: var(--align-control-height); flex-shrink: 0; }
.quantity-control > button { display: grid; place-items: center; width: 100%; height: 100%; padding: 0; line-height: 1; }
.quantity-control > input { width: 100%; height: 100%; min-height: 0; min-width: 0; margin: 0; padding: 0 4px; line-height: 1; text-align: center; font-variant-numeric: tabular-nums; }
.purchase-status:empty { display: none; }
.product-detail-page .product-summary { padding-top: 0; }
.detail-specification-pair { align-items: start; gap: 24px; }
.product-detail-page .detail-specification-pair h2 { margin: 0 0 8px; line-height: 1.5; }
.product-detail-page .dimension-card, .product-detail-page .source-facts > div { align-items: baseline; min-height: 28px; padding-block: 2px; line-height: 1.6; }
.product-detail-page .dimension-card strong { min-width: 3ch; }
.product-detail-page .source-facts { margin-block: 8px 0; }
.product-detail-page .source-facts > div { grid-template-columns: 6em minmax(0, 1fr); gap: 12px; }
.product-detail-page .source-facts :is(dt, dd) { line-height: 1.6; overflow-wrap: anywhere; }
.product-detail-page .inquiry-estimate { align-items: start; gap: 16px 24px; }
.estimate-quantity > label, .estimate-unit-price > span { min-height: 24px; margin: 0 0 8px; line-height: 1.6; }
.product-detail-page .inquiry-purchase .quantity-control { height: var(--align-control-height); }
.product-detail-page .estimate-unit-price strong { display: flex; align-items: center; min-height: var(--align-control-height); margin: 0; line-height: 1.5; }
.product-detail-page .inquiry-purchase .inquiry-add { min-height: var(--align-control-height); }
.product-gallery__thumbnails { align-items: center; }
.product-gallery__thumbnail { display: grid; place-items: center; }
.related-grid, .display-grid { align-items: stretch; }
.series-recommendation > a { display: flex; flex-direction: column; height: 100%; }
.series-recommendation__body { display: flex; flex-direction: column; flex: 1; }
.series-recommendation__body > span { margin-top: auto; }
.display-card { display: flex; flex-direction: column; }
.display-card__body { flex: 1; }
.display-materials__table :is(th, td) { vertical-align: top; line-height: 1.7; }
.site-footer :is(.footer-brand, .footer-column) { min-width: 0; }

/* The same columns power headings and rows, including the quantity unit. */
.checkout-columns, .checkout-item { grid-template-columns: minmax(0, 1.8fr) minmax(156px, 1fr) minmax(110px, 1fr) minmax(180px, 1.3fr); column-gap: 24px; padding-right: 40px; }
.checkout-item__product { justify-self: start; width: 100%; }
.checkout-columns > span:first-child { text-align: left; padding-left: 88px; }
.checkout-quantity { display: flex; align-items: center; justify-content: center; gap: 8px; min-width: 0; }
.checkout-quantity > span { position: static; display: block; flex: 0 0 auto; margin: 0; line-height: 1.4; }
.checkout-quantity .quantity-control { width: 124px; height: var(--align-control-height); grid-template-columns: 28px minmax(52px, 1fr) 28px; }
.checkout-quantity .quantity-control :is(button, input) { width: 100%; }
.checkout-item__unit, .checkout-item__amount { display: flex; flex-direction: column; justify-content: center; align-items: center; }
.checkout-remove { display: grid; place-items: center; width: 32px; height: var(--align-control-height); }
.checkout-rule-row, .checkout-rule-discount { align-items: baseline; }
.checkout-section-heading { align-items: center; }
.quote-form { gap: 20px 24px; align-items: start; }
.quote-field label { min-height: 24px; line-height: 1.6; margin: 0 0 8px; }
.quote-field input, .checkout-page .quote-field input { height: var(--align-control-height); min-height: var(--align-control-height); line-height: 1.4; padding: 8px 12px; }
.quote-email-row { align-items: stretch; gap: 12px; }
.quote-email-row input { flex: 1 1 0; min-width: 0; }
.quote-email-row .button { min-height: var(--align-control-height); margin: 0; }
.quote-modal-heading { align-items: center; }
.quote-modal-heading h2 { margin: 0; line-height: 1.5; }
.quote-modal-close { width: var(--align-control-height); height: var(--align-control-height); }

/* Back office: one rhythm for lists, filters, edit forms and read-only details. */
.admin-page { --align-control-height: 40px; --admin-gutter: 24px; }
.admin-page :is(button, input, select, textarea) { line-height: 1.5; }
.admin-page button { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: var(--align-control-height); margin: 0; padding: 8px 14px; }
.admin-page :is(input:not([type="checkbox"]):not([type="radio"]), select) { height: var(--align-control-height); min-height: var(--align-control-height); padding: 8px 12px; min-width: 0; }
.admin-page input[type="file"] { height: auto; min-height: var(--align-control-height); padding: 6px; }
.admin-page :is(input[type="checkbox"], input[type="radio"]) { width: 16px; height: 16px; min-height: 0; padding: 0; margin: 0; flex: 0 0 auto; }
.admin-page > #app > header { min-height: 80px; padding: 16px var(--admin-gutter); gap: 24px; }
.admin-page header > div { gap: 16px; flex-wrap: wrap; }
.admin-page .brand { display: inline-flex; align-items: baseline; gap: 12px; line-height: 1.4; }
.admin-page .brand span { margin: 0; }
.admin-page .admin-layout { grid-template-columns: 184px minmax(0, 1fr); }
.admin-page #menu { align-self: start; padding: var(--admin-gutter) 16px; gap: 8px; }
.admin-page #menu button { justify-content: flex-start; width: 100%; padding-inline: 12px; }
.admin-page main { padding: var(--admin-gutter); }
.admin-page #content > h1 { line-height: 1.4; margin: 0 0 24px; }
.admin-page :is(.toolbar, .actions, .pagination) { gap: 12px; align-items: center; }
.admin-page .toolbar { margin: 0 0 20px; }
.admin-page .toolbar > input { flex: 1 1 240px; min-width: 180px; }
.admin-page .toolbar > select { width: auto; flex: 0 1 200px; min-width: 140px; max-width: 240px; }
.admin-page .toolbar > label { margin: 0; }
.admin-page .toolbar .help { margin: 0; }
.admin-page :is(th, td) { padding: 12px 16px; line-height: 1.6; }
.admin-page td img { display: block; }
.admin-page td .actions { margin: 0; gap: 8px; }
.admin-page td button { min-height: 36px; padding: 6px 12px; }
.admin-page .pagination { margin: 20px 0 0; }
.admin-page .pagination > span { margin-right: auto; }
.admin-page label { gap: 8px; margin-bottom: 16px; }
.admin-page .form-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px 24px; align-items: stretch; }
.admin-page .form-grid > label { margin: 0; gap: 8px; min-width: 0; line-height: 1.6; }
.admin-page .form-grid > label > :is(input, select, textarea) { margin-top: auto; }
.admin-page .spec-card { padding: 20px; margin: 16px 0; }
.admin-page .spec-card .form-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.admin-page .spec-card .form-grid + h3 { margin-top: 20px; }
.admin-page .spec-title { align-items: center; gap: 16px; margin-bottom: 16px; }
.admin-page .spec-title h3 { margin: 0; }
.admin-page .spec-title label { display: inline-flex; align-items: center; gap: 8px; margin: 0; }
.admin-page .facts-row { grid-template-columns: minmax(0, 1fr) minmax(0, 2fr) 40px; gap: 12px; align-items: stretch; margin-block: 12px; }
.admin-page .facts-row button { width: 40px; height: 40px; padding: 0; }
.admin-page #editor { padding: var(--admin-gutter); }
.admin-page .dialog-top { align-items: center; gap: 16px; padding-bottom: 16px; margin-bottom: 24px; }
.admin-page .dialog-top h2 { margin: 0; min-width: 0; line-height: 1.5; }
.admin-page .dialog-top button { width: 40px; height: 40px; flex-shrink: 0; padding: 0; line-height: 1; }
.admin-page .image-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(176px, 1fr)); gap: 16px; align-items: stretch; }
.admin-page .image-card { display: flex; flex-direction: column; width: auto; min-width: 0; padding: 12px; }
.admin-page .image-card img { display: block; width: 100%; height: 112px; object-fit: contain; }
.admin-page .image-card .actions { margin: 8px 0; gap: 4px; }
.admin-page .image-card button { min-height: 32px; padding: 4px 6px; font-size: 13px; }
.admin-page .image-card > label { margin: auto 0 0; gap: 8px; }
.admin-page .image-card input { width: 100%; font-size: 12px; }
.admin-page .sticky-actions { bottom: calc(-1 * var(--admin-gutter)); margin: 24px calc(-1 * var(--admin-gutter)) calc(-1 * var(--admin-gutter)); padding: 16px var(--admin-gutter); gap: 12px; align-items: center; }
.admin-page .sticky-actions > a { display: inline-flex; align-items: center; min-height: var(--align-control-height); }
.admin-page .read-contact { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px 24px; padding: 20px; }
.admin-page .read-contact > div { display: grid; grid-template-columns: 7em minmax(0, 1fr); gap: 12px; align-items: baseline; }
.admin-page .read-contact span { margin: 0; }
.admin-page .settings-form { padding: 24px; }
.admin-page .settings-form > button { margin-top: 24px; }
.admin-page .login-shell { width: min(430px, calc(100% - 32px)); padding: 32px; }
.admin-page .login-shell label { gap: 8px; margin-bottom: 16px; }
.admin-page .login-shell #login-submit { width: 100%; margin-top: 8px; }
.admin-page :is(#login-error, #editor-error):empty { display: none; }
.admin-page :is(td, .quote-total) { font-variant-numeric: tabular-nums; }

@media (max-width: 1180px) {
  .checkout-columns, .checkout-item { grid-template-columns: minmax(0, 1.6fr) minmax(148px, 1fr) minmax(96px, .85fr) minmax(156px, 1.25fr); column-gap: 16px; padding-right: 36px; }
  .checkout-columns > span:first-child { padding-left: 68px; }
}
@media (min-width: 861px) {
  .site-header__inner { column-gap: 24px; }
  .main-nav { gap: clamp(20px, 2vw, 32px); }
}
@media (max-width: 860px) {
  .header-actions { gap: 8px; }
  .main-nav > a { justify-content: flex-start; }
  .filtered-catalog .category-jump-nav a { justify-content: flex-start; gap: 8px; }
  .filtered-catalog .category-jump-nav a small { min-width: 0; }
  .admin-page .spec-card .form-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 700px) {
  .admin-page { --admin-gutter: 16px; }
  .admin-page > #app > header { gap: 12px; padding: 16px; }
  .admin-page .brand { flex-wrap: wrap; gap: 0 8px; }
  .admin-page .brand span { font-size: 13px; }
  .admin-page header > div { gap: 8px; }
  .admin-page .admin-layout { display: block; }
  .admin-page #menu { padding: 12px 16px; gap: 8px; }
  .admin-page #menu button { width: auto; flex: 0 0 auto; }
  .admin-page .toolbar { gap: 8px; }
  .admin-page .toolbar > input { flex-basis: 100%; min-width: 0; }
  .admin-page .toolbar > select { flex: 1 1 140px; min-width: 0; max-width: none; }
  .admin-page .form-grid, .admin-page .spec-card .form-grid { grid-template-columns: minmax(0, 1fr); gap: 16px; }
  .admin-page .form-grid > .wide { grid-column: 1 / -1; }
  .admin-page .spec-card { padding: 16px; }
  .admin-page .facts-row { grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr) 40px; gap: 8px; }
  .admin-page .read-contact { grid-template-columns: minmax(0, 1fr); padding: 16px; }
  .admin-page .table-wrap td { padding: 8px; }
  .admin-page .table-wrap td .actions { flex-wrap: wrap; }
  .admin-page .pagination { gap: 8px; }
  .admin-page .pagination > span { width: 100%; }
  .admin-page .login-shell { margin: 32px auto; padding: 24px; }
}
@media (max-width: 600px) {
  .header-actions { gap: 6px; }
  .header-actions > :is(.header-contact, .header-cart) { height: 40px; min-height: 40px; }
  .home-actions, .business-actions { gap: 12px; }
  .card-purchase { gap: 10px; }
  .card-purchase .purchase-row { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 8px; }
  .card-purchase .quantity-control { width: min(136px, 100%); min-width: 0; grid-template-columns: 28px minmax(32px, 1fr) 28px; }
  .catalog-product-section__heading, .series-heading { align-items: flex-start; }
  .detail-specification-pair { grid-template-columns: minmax(0, 1fr); gap: 20px; }
  .product-detail-page .inquiry-estimate { grid-template-columns: minmax(0, 1fr); gap: 16px; }
  .checkout-item { grid-template-columns: minmax(0, 1fr) 32px; gap: 12px; padding: 16px 0; }
  .checkout-item__product { justify-self: stretch; }
  .checkout-quantity { justify-content: flex-start; }
  .checkout-item__prices { gap: 16px; }
  .checkout-item__unit, .checkout-item__amount { align-items: flex-start; text-align: left; }
  .checkout-item__unit .is-masked { margin-inline: 0; }
  .checkout-remove { height: 40px; }
  .quote-form { gap: 16px; }
  .quote-email-row { flex-direction: column; gap: 8px; }
  .quote-email-row input { flex: 0 0 auto; width: 100%; }
  .quote-email-row .button { width: 100%; }
}

[hidden] { display: none !important; }