/* ==========================================================================
   product.css -- the product detail page (product-page.php), on the tokens in
   mtc.css. Replaces legacy-product.css on these ten pages, plus the inline
   <style> blocks that sidebar-quote-form.php, related-products.php,
   conveyor-materials.php and the two video pages used to carry.

   The one bold element is the product well: the machine, large, in a recessed
   panel with the only generous radius on the page. Everything else is hairline
   rules and type. Orange appears on the primary buttons and the active tab
   only.
   ========================================================================== */

/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */
.pd-hero { padding-block: var(--s-7) var(--s-8); }

/* minmax(0, 1fr), not the implicit `auto` column: a grid item's default
   min-width is its content's natural width, so one wide child (the tab bar,
   a table) stretched the column past the screen. On a phone that made mobile
   Chrome widen the whole layout to 627px and shrink the page to fit. */
.pd-hero__grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: var(--s-7); }
@media (min-width: 62rem) {
  .pd-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: var(--s-8);
    align-items: start;
  }
}

/* The well -- the most important thing on the page, and the only element
   with a 14px radius. */
.pd-well {
  position: relative;
  aspect-ratio: 4 / 3;
  background: var(--c-canvas-sunk);
  border-radius: var(--r-3);
  overflow: hidden;
}
/* Absolutely positioned inside the padded well rather than max-height: 100%,
   which does not resolve against an aspect-ratio box and let the full-size
   cutout render at its natural size -- visibly cropped on top, bottom and
   right. object-fit: contain then fits any aspect ratio of machine. */
.pd-well img,
.pd-well video {
  position: absolute;
  inset: var(--s-6);
  width: calc(100% - 2 * var(--s-6));
  height: calc(100% - 2 * var(--s-6));
  object-fit: contain;
}
.pd-well video { inset: 0; width: 100%; height: 100%; background: #000; }

.pd-thumbs {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(4.5rem, 1fr));
  gap: var(--s-2);
  margin-top: var(--s-3);
}
.pd-thumb {
  position: relative;
  display: grid;
  place-items: center;
  aspect-ratio: 1;
  padding: var(--s-1);
  overflow: hidden;
  cursor: pointer;
  background: var(--c-canvas-sunk);
  border: 1px solid transparent;
  border-radius: var(--r-2);
  transition: border-color var(--dur-1) var(--ease);
}
.pd-thumb img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.pd-thumb:hover { border-color: var(--c-line-strong); }
.pd-thumb.active { border-color: var(--c-ink); }

/* Video thumbnails: a play mark over the poster. Was a 19-line inline
   <style> duplicated on haulage and ring-type, dropped by the refactor in
   cd70f92 and restored here. */
.pd-thumb__play {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: #fff;
  font-size: 1rem;
  background: rgb(16 22 28 / 0.45);
  transition: background var(--dur-1) var(--ease);
}
.pd-thumb:hover .pd-thumb__play,
.pd-thumb.active .pd-thumb__play { background: rgb(16 22 28 / 0.65); }

.pd-summary { display: flex; flex-direction: column; gap: var(--s-4); }

.pd-series {
  margin: 0;
  font-size: var(--fs-sm);
  color: var(--c-ink-3);
}

.pd-title {
  margin: 0;
  font-size: var(--fs-h1);
}
/* The second line is the model, not a slogan: quieter, not orange. */
.pd-title span {
  color: var(--c-ink-2);
  font-weight: var(--fw-med);
}

.pd-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--s-3);
  margin: 0;
  font-size: var(--fs-sm);
  color: var(--c-ink-2);
}
.pd-stock {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  color: var(--c-ok);
  font-weight: var(--fw-med);
}
.pd-stock::before {
  content: "";
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: currentColor;
}

.pd-intro {
  margin: 0;
  max-width: 60ch;
  color: var(--c-ink-2);
}

/* Specs read as a table: hairline rows, label left, value right. */
.pd-specs {
  margin: var(--s-2) 0 0;
  border-top: 1px solid var(--c-line);
}
.pd-specs > div {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: var(--s-4);
  padding-block: var(--s-3);
  border-bottom: 1px solid var(--c-line);
}
.pd-specs dt {
  font-size: var(--fs-sm);
  font-weight: var(--fw-body);
  color: var(--c-ink-2);
}
.pd-specs dd {
  margin: 0;
  font-weight: var(--fw-bold);
  color: var(--c-ink);
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.pd-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-3);
  margin-top: var(--s-2);
}
.pd-actions .btn { flex: 1 1 12rem; }

.pd-call {
  margin: 0;
  font-size: var(--fs-sm);
  color: var(--c-ink-2);
}
.pd-call a {
  color: var(--c-ink);
  font-weight: var(--fw-bold);
  font-variant-numeric: tabular-nums;
  text-decoration: underline;
  text-decoration-color: var(--c-line-strong);
  text-underline-offset: 3px;
}
.pd-call a:hover { text-decoration-color: currentColor; }

/* Trust notes are reference information: small and quiet. */
.pd-trust {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-2) var(--s-5);
  margin: var(--s-2) 0 0;
  padding: var(--s-4) 0 0;
  list-style: none;
  font-size: var(--fs-xs);
  color: var(--c-ink-2);
  border-top: 1px solid var(--c-line);
}
.pd-trust li { display: inline-flex; align-items: center; gap: var(--s-2); }
.pd-trust i { color: var(--c-ink-3); }

/* --------------------------------------------------------------------------
   Prose (overview, description tab)
   -------------------------------------------------------------------------- */
.pd-prose { max-width: var(--measure); }
.pd-prose h2 { margin: 0 0 var(--s-5); }
.pd-prose h3 { margin: 0 0 var(--s-4); font-size: var(--fs-h3); }
.pd-prose p { margin: 0 0 var(--s-4); color: var(--c-ink-2); }
.pd-prose strong { color: var(--c-ink); }

.pd-related-link {
  margin-top: var(--s-5) !important;
  padding: var(--s-4) var(--s-5);
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--r-2);
}
.pd-related-link a {
  color: var(--c-ink);
  font-weight: var(--fw-bold);
  text-decoration: none;
}
.pd-related-link a:hover { color: var(--c-action); }
.pd-related-link i { font-size: 0.8em; margin-left: var(--s-1); }

.pd-h3 { margin: var(--s-7) 0 var(--s-4); font-size: var(--fs-h3); }
.pd-panes > .pd-pane > .pd-h3:first-child,
.pd-flow .pd-h3 { margin-top: 0; }

/* --------------------------------------------------------------------------
   Overview + buying box
   -------------------------------------------------------------------------- */
.pd-overview__grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: var(--s-6); }
@media (min-width: 62rem) {
  .pd-overview__grid {
    grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
    gap: var(--s-8);
    align-items: start;
  }
}

.pd-buy {
  padding: var(--s-6);
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--r-2);
}
.pd-buy h3 { margin: 0 0 var(--s-4); font-size: var(--fs-h4); }
.pd-buy ul { margin: 0 0 var(--s-5); padding: 0; list-style: none; }
.pd-buy li {
  padding-block: var(--s-3);
  font-size: var(--fs-sm);
  line-height: 1.5;
  color: var(--c-ink-2);
  border-bottom: 1px solid var(--c-line);
}
.pd-buy li:first-child { padding-top: 0; }
.pd-buy li strong { display: block; color: var(--c-ink); }
.pd-buy li a { color: var(--c-action); }
.pd-buy__cta { width: 100%; }

/* --------------------------------------------------------------------------
   Details: tabs + quote form
   -------------------------------------------------------------------------- */
.pd-details__grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: var(--s-7); }
@media (min-width: 62rem) {
  .pd-details__grid {
    grid-template-columns: minmax(0, 2fr) minmax(19rem, 1fr);
    gap: var(--s-8);
    align-items: start;
  }
}

/* On a phone the tab bar scrolls sideways rather than wrapping or turning
   into an accordion; the fade at the edge says there is more. */
.pd-tabs-scroll {
  position: relative;
  border-bottom: 1px solid var(--c-line);
}
.pd-tabs {
  display: flex;
  flex-wrap: nowrap;
  gap: var(--s-5);
  margin: 0;
  padding: 0;
  overflow-x: auto;
  list-style: none;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
  /* product-tabs.js scrolls the chosen tab into view; stop it clear of the
     edge fade rather than half under it (seen at 390px). */
  scroll-padding-inline: 1.5rem;
}
.pd-tabs::-webkit-scrollbar { display: none; }
@media (max-width: 47.99rem) {
  /* Verified at 390px: with the desktop gap and a 2.5rem fade, exactly two
     tabs fitted and the third began under the fade, so nothing showed that
     Applications, Maintenance and FAQ existed. A visibly cut-off next tab is
     the clearest cue that a row scrolls, so the gap tightens and the fade
     narrows enough for it to show through. */
  /* Trailing room as wide as the fade, so the last tab (FAQ) can scroll
     fully clear of it; without it FAQ stayed half-faded when selected. */
  .pd-tabs { gap: var(--s-4); padding-right: 1.5rem; }
  .pd-tabs-scroll::after {
    content: "";
    position: absolute;
    inset: 0 0 1px auto;
    width: 1.25rem;
    pointer-events: none;
    background: linear-gradient(to right, transparent, var(--c-canvas));
  }
}
.pd-tabs .nav-link {
  position: relative;
  flex: none;
  padding: var(--s-4) 0;
  font-size: var(--fs-sm);
  font-weight: var(--fw-med);
  color: var(--c-ink-2);
  white-space: nowrap;
  background: none;
  border: 0;
  cursor: pointer;
}
.pd-tabs .nav-link:hover { color: var(--c-ink); }
/* The row scrolls sideways (overflow-x), which clips anything drawn outside
   a tab: seen in the browser, the keyboard focus ring lost its top and bottom.
   Draw it just inside the button instead. */
.pd-tabs .nav-link:focus-visible { outline-offset: -3px; }
.pd-tabs .nav-link.active { color: var(--c-ink); font-weight: var(--fw-bold); }
.pd-tabs .nav-link.active::after {
  content: "";
  position: absolute;
  inset: auto 0 -1px;
  height: 2px;
  background: var(--c-action);
}

.pd-panes { padding-top: var(--s-6); }
.pd-pane[hidden] { display: none; }
.pd-pane:focus-visible { outline-offset: var(--s-2); }

/* Parameter table -- the spec sheet. Also styles the conveyor page's own
   materials table, which arrives as raw markup with the legacy class. */
.spec-table-wrap,
.mtc-tech-table-container { overflow-x: auto; }
.spec-table,
.mtc-modern-tech-table {
  width: 100%;
  font-size: var(--fs-sm);
  font-variant-numeric: tabular-nums;
  border-collapse: collapse;
}
.spec-table thead th,
.mtc-modern-tech-table thead th {
  padding: 0 var(--s-4) var(--s-3) 0;
  font-size: var(--fs-xs);
  font-weight: var(--fw-med);
  color: var(--c-ink-3);
  text-align: left;
  border-bottom: 1px solid var(--c-line-strong);
}
.spec-table tbody th,
.spec-table tbody td,
.mtc-modern-tech-table tbody td {
  padding: var(--s-3) var(--s-4) var(--s-3) 0;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--c-line);
}
.spec-table tbody th,
.mtc-modern-tech-table tbody td:first-child {
  width: 40%;
  font-weight: var(--fw-body);
  color: var(--c-ink-2);
}
.spec-table tbody td,
.mtc-modern-tech-table tbody td:last-child {
  font-weight: var(--fw-med);
  color: var(--c-ink);
}
.mtc-modern-tech-table strong { font-weight: inherit; }

/* Process flow: optional diagram beside a numbered sequence. */
.pd-flow { display: grid; gap: var(--s-6); }
@media (min-width: 48rem) {
  .pd-flow--with-figure { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); align-items: start; }
}
.pd-figure { margin: 0; }
.pd-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--c-line);
  border-radius: var(--r-2);
}
.pd-figure figcaption {
  margin-top: var(--s-2);
  font-size: var(--fs-xs);
  color: var(--c-ink-3);
}

.pd-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  border-left: 1px solid var(--c-line-strong);
}
.pd-steps li {
  position: relative;
  padding: 0 0 var(--s-6) var(--s-5);
}
.pd-steps li:last-child { padding-bottom: 0; }
.pd-steps li::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 0.35rem;
  width: 9px;
  height: 9px;
  background: var(--c-surface);
  border: 2px solid var(--c-ink);
  border-radius: 50%;
}
.pd-steps__num {
  display: block;
  font-size: var(--fs-xs);
  color: var(--c-ink-3);
  font-variant-numeric: tabular-nums;
}
.pd-steps h4 { margin: var(--s-1) 0 var(--s-2); font-size: var(--fs-h4); }
.pd-steps p { margin: 0; font-size: var(--fs-sm); color: var(--c-ink-2); }

/* Applications. The generic .grid--3 minimum (17rem) fits only two across in
   this column and stranded the third card on its own row; 12.5rem fits three,
   and pages with two applications (coal-charging-car) still split evenly. */
.pd-apps { grid-template-columns: repeat(auto-fit, minmax(min(100%, 12.5rem), 1fr)); gap: var(--s-4); }
.pd-app {
  padding: var(--s-5);
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--r-2);
}
.pd-app i { font-size: 1.25rem; color: var(--c-ink-3); }
.pd-app h4 { margin: var(--s-3) 0 var(--s-2); font-size: var(--fs-h4); }
.pd-app p { margin: 0; font-size: var(--fs-sm); color: var(--c-ink-2); }

/* Maintenance */
.pd-note {
  display: flex;
  gap: var(--s-3);
  margin-bottom: var(--s-6);
  padding: var(--s-4) var(--s-5);
  background: #FFF8E6;
  border-left: 3px solid var(--c-warn);
  border-radius: 0 var(--r-2) var(--r-2) 0;
}
.pd-note i { margin-top: 0.2rem; color: var(--c-warn); }
.pd-note p { margin: 0; font-size: var(--fs-sm); color: var(--c-ink); }
.pd-maint h4 { margin: 0 0 var(--s-3); font-size: var(--fs-h4); }
.pd-list { margin: 0; padding: 0 0 0 1.1rem; }
.pd-list li {
  margin-bottom: var(--s-2);
  font-size: var(--fs-sm);
  color: var(--c-ink-2);
}
.pd-list li::marker { color: var(--c-ink-3); }
.pd-list strong { color: var(--c-ink); }

/* FAQ -- hairline rules and a plus that turns into a minus (Shopify,
   Patreon, Hims on Mobbin). Native <details>/<summary> since phase 8. */
.pd-faq { border-top: 1px solid var(--c-line); }
.pd-faq__item { border-bottom: 1px solid var(--c-line); }
.pd-faq__q {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--s-4);
  width: 100%;
  min-height: 3rem;
  padding: var(--s-4) 0;
  font-size: var(--fs-body);
  font-weight: var(--fw-bold);
  color: var(--c-ink);
  text-align: left;
  cursor: pointer;
  list-style: none;
}
.pd-faq__q::-webkit-details-marker { display: none; }
/* hover only where a pointer really hovers: on touch screens the colour
   stuck to a question after it was tapped (seen at 390px). */
@media (hover: hover) { .pd-faq__q:hover { color: var(--c-action); } }
.pd-faq__icon {
  position: relative;
  flex: none;
  width: 0.875rem;
  height: 0.875rem;
}
.pd-faq__icon::before,
.pd-faq__icon::after {
  content: "";
  position: absolute;
  inset: 50% 0 auto;
  height: 2px;
  margin-top: -1px;
  background: currentColor;
  transition: transform var(--dur-2) var(--ease);
}
.pd-faq__icon::after { transform: rotate(90deg); }
.pd-faq__item[open] .pd-faq__icon::after { transform: rotate(0deg); }
.pd-faq__a {
  max-width: var(--measure);
  margin: 0;
  padding: 0 0 var(--s-5);
  font-size: var(--fs-sm);
  color: var(--c-ink-2);
}

/* conveyor-materials: its bespoke tabs arrive as raw markup with legacy
   classes. The component grid was a 60-line inline <style> on that page,
   dropped by the refactor in cd70f92 and restored here on the new tokens. */
.mtc-tech-heading { margin: 0 0 var(--s-4); font-size: var(--fs-h3); }
.mtc-tech-paragraph { max-width: var(--measure); color: var(--c-ink-2); }
.mtc-component-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 16rem), 1fr));
  gap: var(--s-4);
  margin-top: var(--s-5);
}
.mtc-component-card {
  padding: var(--s-5);
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--r-2);
}
.mtc-card-icon { font-size: 1.25rem; color: var(--c-ink-3); }
.mtc-card-title { margin: var(--s-3) 0 var(--s-3); font-size: var(--fs-h4); }
.mtc-card-list {
  margin: 0;
  padding: 0 0 0 1.1rem;
  font-size: var(--fs-sm);
  color: var(--c-ink-2);
}
.mtc-card-list li { margin-bottom: var(--s-1); }
.mtc-card-list li::marker { color: var(--c-ink-3); }

/* --------------------------------------------------------------------------
   Quote form. Sticky beside the tabs on desktop -- one of the two elements
   authorised to use --shadow-2, because it floats over the content.
   -------------------------------------------------------------------------- */
@media (min-width: 62rem) {
  .pd-quote { position: sticky; top: calc(var(--header-h, 76px) + var(--s-5)); }
}

.quote-card {
  padding: clamp(var(--s-5), 4vw, var(--s-6));
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--r-2);
  box-shadow: var(--shadow-2);
}
.quote-card__title { margin: 0 0 var(--s-2); font-size: var(--fs-h3); }
.quote-card__lede {
  margin: 0 0 var(--s-5);
  font-size: var(--fs-sm);
  color: var(--c-ink-2);
}
.quote-card__lede strong { color: var(--c-ink); }

/* .field and .form-status live in mtc.css: the contact page uses them too. */
.quote-card__submit { width: 100%; margin-top: var(--s-2); }
.quote-card__fine {
  margin: var(--s-3) 0 0;
  font-size: var(--fs-xs);
  color: var(--c-ink-3);
  text-align: center;
}
.quote-card__alt {
  margin: var(--s-5) 0 0;
  padding-top: var(--s-4);
  font-size: var(--fs-sm);
  color: var(--c-ink-2);
  text-align: center;
  border-top: 1px solid var(--c-line);
}
.quote-card__alt a {
  color: var(--c-ink);
  font-weight: var(--fw-bold);
  font-variant-numeric: tabular-nums;
}

/* --------------------------------------------------------------------------
   Related products -- a scroll-snapped row of the shared .product-card.
   -------------------------------------------------------------------------- */
.related__head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--s-4);
  margin-bottom: var(--s-6);
}
.related__head h2 { margin: 0 0 var(--s-2); }
.related__head p { margin: 0; color: var(--c-ink-2); }
.related__nav { display: flex; gap: var(--s-2); }

.icon-btn {
  display: grid;
  place-items: center;
  width: 2.75rem;
  height: 2.75rem;
  color: var(--c-ink);
  cursor: pointer;
  background: var(--c-surface);
  border: 1px solid var(--c-line-strong);
  border-radius: var(--r-2);
  transition: border-color var(--dur-1) var(--ease), opacity var(--dur-1) var(--ease);
}
.icon-btn:hover { border-color: var(--c-ink); }
.icon-btn:disabled { opacity: 0.35; cursor: default; border-color: var(--c-line-strong); }

.related__track {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(15rem, 1fr);
  gap: var(--s-4);
  overflow-x: auto;
  padding-bottom: var(--s-3);
  scroll-snap-type: x mandatory;
  scroll-padding-inline: 0;
  scrollbar-width: thin;
}
@media (min-width: 62rem) {
  /* Four cards in view on desktop. */
  .related__track { grid-auto-columns: calc((100% - 3 * var(--s-4)) / 4); }
}
.related__track > .product-card { scroll-snap-align: start; }
.related__track:focus-visible { outline-offset: 4px; }

/* Caption under the main gallery image, for labelled files (a spare part):
   names what is shown so it is not taken for the whole machine. */
.pd-well__caption {
  margin: var(--s-3) 0 0;
  font-size: var(--fs-sm);
  font-weight: var(--fw-bold);
  color: var(--c-ink);
}

/* --------------------------------------------------------------------------
   Spare and wear parts
   The cards themselves are the shared component in mtc.css. Only the section's
   own edge is here: it sits between the sunk overview and the plain tabs
   section, so without a rule the boundary below it would be invisible.
   -------------------------------------------------------------------------- */
.pd-spares { border-bottom: 1px solid var(--c-line); }