/* The parts pages (the listings, the search, the Brand Page and the Make Page): the counter's look,
   ported from store.orbitalparts.ca's catalog.css and the shared parts of its site.css (ADR 0007), onto
   the class names of docs/counter-contract.md. Every colour, font and radius is a --parts-* token
   (tokens.css: a default each, a site's :root overrides); nothing here names a site's class.

   Listing: a rail (200px) and a ledger of rows, one part per row, under a column head:
   | img | PART #     | Description                   | Availability | Your price    | Qty | Add |
   | [ ] | HB453B.585 | Front HPS 5.0 Disc Brake Pad  | * 5 in stock |   $153.75     | [1] |[Add]|
   |     | Hawk Perf. | (ok) Fits your 2018 Ford F-150| Ships today  | Sugg. $204.99 |     |     |
   The Qty and Add columns (52 + 12 + 58 = 122px) hold a row's nudge when it cannot be added.
   body[data-parts-view=grid] lays the same rows out as cards. Under 1025px the rail folds behind its
   Filters toggle; at 760px and under a row folds to thumb + number and title, availability, then
   price | qty | Add.

   Facet rows are buttons in one form (POST /parts/filters) and category rows are links: both draw as
   the counter's rail links did, so a button's own chrome is reset here.
   Every rule sits in @layer kit, between a site's base and site layers (tokens.css). */
@layer base, kit, site;

@layer kit {

/* ---------- the page and what it inherits: element defaults at no specificity, so every class below wins ---------- */
.parts {
  max-width: var(--parts-max); margin: 0 auto; padding: 16px var(--parts-gut) 48px;
  color: var(--parts-ink); font: 400 14px/20px var(--parts-font); font-optical-sizing: auto;
}
.parts-lb, .parts-peek { color: var(--parts-ink); font: 400 14px/20px var(--parts-font); font-optical-sizing: auto; }
:where(.parts, .parts-lb, .parts-peek), :where(.parts, .parts-lb, .parts-peek) *, :where(.parts, .parts-lb, .parts-peek) ::before, :where(.parts, .parts-lb, .parts-peek) ::after { box-sizing: border-box; }
:where(.parts, .parts-lb) :where(h1, h2, h3) { margin: 0; font-family: var(--parts-font); font-weight: 600; letter-spacing: -.015em; text-transform: none; }
:where(.parts, .parts-lb) :where(p, figure) { margin: 0; }
:where(.parts, .parts-lb) :where(ul, ol) { margin: 0; padding: 0; list-style: none; }
:where(.parts, .parts-lb, .parts-peek) :where(img) { max-width: 100%; display: block; }
:where(.parts, .parts-lb) :where(a) { color: inherit; }
:where(.parts, .parts-lb) :where(button, input, select, textarea) { font: inherit; color: inherit; }
:where(.parts, .parts-lb) [hidden] { display: none !important; }
:where(.parts, .parts-lb) :focus-visible { outline: 2px solid var(--parts-focus); outline-offset: 2px; }
/* the script focuses the listing itself after a swap whose control is gone: no ring round the whole page */
.parts:focus { outline: none; }
.parts-mono { font-family: var(--parts-mono); font-variant-numeric: tabular-nums; letter-spacing: -.01em; }
.sr { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* ---------- buttons, the note, a quiet link ---------- */
.parts-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  height: 34px; margin: 0; padding: 0 14px; border: 1px solid var(--parts-ink); border-radius: var(--parts-radius);
  background: var(--parts-ink); color: var(--parts-bg); font: 600 13px/1 var(--parts-font);
  text-decoration: none; cursor: pointer; white-space: nowrap; -webkit-appearance: none; appearance: none;
  transition: background .12s;
}
.parts-btn:hover { background: var(--parts-ink-2); }
.parts-btn--go { background: var(--parts-cta); border-color: var(--parts-cta); color: var(--parts-cta-ink); }
.parts-btn--go:hover { background: var(--parts-cta-hover); border-color: var(--parts-cta-hover); }
.parts-btn--line { background: var(--parts-bg); color: var(--parts-ink); border-color: var(--parts-dove); }
.parts-btn--line:hover { background: var(--parts-cream); border-color: var(--parts-ink); }
.parts-btn[disabled] { opacity: .45; cursor: not-allowed; }
.parts-note { padding: 10px 12px; border-radius: var(--parts-radius); background: var(--parts-cream); border: 1px solid var(--parts-dove); color: var(--parts-steel); font-size: 13px; }
.parts-main > .parts-note { margin-bottom: 10px; }
.parts-link { color: var(--parts-ink); font-weight: 500; text-decoration: underline; text-decoration-color: var(--parts-dove); text-underline-offset: 3px; background: none; border: 0; padding: 0; cursor: pointer; }
.parts-link:hover { text-decoration-color: var(--parts-ink); }

/* ---------- breadcrumbs: small, steel, separators in dove ---------- */
.parts-crumbs { margin-bottom: 10px; font-size: 12.5px; line-height: 20px; color: var(--parts-steel); }
.parts-crumbs, .parts-crumbs ol { display: flex; flex-wrap: wrap; gap: 6px; align-items: baseline; }
.parts-crumbs li { display: inline-flex; gap: 6px; align-items: baseline; }
.parts-crumbs a { text-decoration: none; }
.parts-crumbs a:hover { text-decoration: underline; }
.parts-crumbs [aria-hidden="true"] { color: var(--parts-dove); }

/* ---------- the rail beside the main column ---------- */
.parts-layout { display: grid; grid-template-columns: 200px minmax(0, 1fr); gap: 24px; align-items: start; }
/* the filters form wraps the rail and the bar; it draws no box of its own, so its children sit in the layout */
.parts-filters { display: contents; }
.parts-main { min-width: 0; }
.parts-rail { min-width: 0; position: sticky; top: 12px; font-size: 13px; line-height: 20px; }
.parts-rail, .parts-rail__body { display: grid; gap: 14px; }
.parts-rail__fold { display: block; }
/* the fold: under 1025px its summary is the Filters toggle and it opens on a tap; from 1025px its body
   always shows and the toggle hides (where a browser cannot show a closed fold's body, the toggle stays) */
.parts-rail__toggle {
  display: inline-flex; align-items: center; gap: 6px; height: 32px; padding: 0 12px;
  border: 1px solid var(--parts-dove); border-radius: var(--parts-radius); background: var(--parts-bg);
  font-weight: 600; font-size: 13px; list-style: none; cursor: pointer; user-select: none;
}
.parts-rail__toggle::-webkit-details-marker { display: none; }
.parts-rail__toggle:hover { border-color: var(--parts-fog); }
.parts-rail__fold[open] > .parts-rail__toggle { border-color: var(--parts-ink); background: var(--parts-sand); }
@media (min-width: 1025px) {
  .parts-rail__fold::details-content { content-visibility: visible; block-size: auto; }
  @supports selector(::details-content) { .parts-rail__toggle { display: none; } }
}

/* a group: Category, Brand, Availability, Part type, Fitment, Price; its title folds it */
.parts-group { border-bottom: 1px solid var(--parts-dove); padding-bottom: 12px; }
.parts-group > summary { list-style: none; display: flex; justify-content: space-between; padding: 2px 0 6px; font-weight: 600; color: var(--parts-ink); cursor: pointer; }
.parts-group > summary::-webkit-details-marker { display: none; }
.parts-group > summary::after { content: "\2212"; color: var(--parts-fog); }
.parts-group:not([open]) > summary::after { content: "+"; }
.parts-options { display: grid; gap: 1px; }
.parts-options--sub { margin: 2px 0 4px 10px; padding-left: 8px; border-left: 1px solid var(--parts-dove); }

/* a row: a category link or a facet button, drawn alike, the button's chrome undone */
.parts-option {
  display: flex; justify-content: space-between; gap: 8px; box-sizing: border-box; width: calc(100% + 12px);
  margin: 0 -6px; padding: 3px 6px; border: 0; border-radius: var(--parts-radius-check);
  background: none; color: var(--parts-steel); font: inherit; line-height: 20px; text-align: left; text-decoration: none;
  cursor: pointer; -webkit-appearance: none; appearance: none;
}
.parts-options--sub .parts-option { font-size: 12.5px; }
.parts-option:hover { background: var(--parts-cream); color: var(--parts-ink); }
.parts-option[data-open] { color: var(--parts-ink); font-weight: 600; }
.parts-option[aria-pressed="true"], .parts-option[aria-current="page"] { background: var(--parts-sand); color: var(--parts-ink); font-weight: 600; }
.parts-option small { color: var(--parts-fog); font-family: var(--parts-mono); font-size: 11.5px; }
.parts-option:focus-visible { outline: 2px solid var(--parts-focus); outline-offset: -2px; }
/* a picked brand: the row stays highlighted, its count and an × at the right edge; the whole row takes the brand off */
.parts-option__end { display: inline-flex; align-items: center; gap: 6px; }
.parts-option__x { font-weight: 400; font-size: 15px; line-height: 1; color: var(--parts-steel); }
.parts-option[aria-pressed="true"]:hover .parts-option__x { color: var(--parts-ink); }

/* ---------- the mast: the node's title as the counter's page head, its picture or logo beside it ---------- */
.parts-mast { display: grid; gap: 4px; margin-bottom: 12px; }
.parts-mast__head { display: flex; align-items: center; gap: 12px; min-width: 0; }
.parts-mast h1 { font-size: 22px; line-height: 28px; overflow-wrap: anywhere; }
.parts-mast__img { flex: none; width: 44px; height: 44px; object-fit: contain; padding: 3px; border: 1px solid var(--parts-dove); border-radius: var(--parts-radius-image); background: var(--parts-photo-bg); }
.parts-mast__icon { flex: none; width: 28px; height: 28px; filter: var(--parts-icon-filter); }
.parts-mast__logo { flex: none; width: auto; max-width: 160px; height: 32px; object-fit: contain; }
.parts-mast--brand h1 { line-height: 0; }
.parts-mast--brand img { width: auto; max-width: min(100%, 280px); height: 56px; object-fit: contain; }
.parts-mast__lead { max-width: 72ch; color: var(--parts-steel); }
.parts-mast__lead a { color: var(--parts-ink); font-weight: 500; text-decoration-color: var(--parts-dove); text-underline-offset: 3px; }

/* the lines under the mast: the vehicle's or the page's lead, how a search ran, a warning */
.parts-lead, .parts-outcome { margin-bottom: 10px; max-width: 72ch; color: var(--parts-steel); }
.parts-lead a, .parts-outcome__link { color: var(--parts-ink); font-weight: 500; text-decoration: underline; text-decoration-color: var(--parts-dove); text-underline-offset: 3px; }
.parts-lead a:hover, .parts-outcome__link:hover { text-decoration-color: var(--parts-ink); }
.parts-outcome--warn { max-width: none; padding: 10px 12px; border: 1px solid color-mix(in srgb, var(--parts-red) 25%, transparent); border-radius: var(--parts-radius); background: var(--parts-red-bg); color: var(--parts-red); font-size: 13px; }

/* ---------- the bar over the rows: the count, In stock only, the sort, Rows / Grid ---------- */
.parts-bar { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 10px; }
.parts-bar__count { margin-right: auto; font-weight: 600; }
.parts-bar__count span { color: var(--parts-steel); font-weight: 400; }
.parts-bar__stock {
  position: relative; display: inline-flex; align-items: center; gap: 6px; height: 32px; margin: 0; padding: 0 10px;
  border: 1px solid var(--parts-dove); border-radius: var(--parts-radius); background: var(--parts-bg); color: var(--parts-ink);
  font: 400 13px/1 var(--parts-font); text-decoration: none; cursor: pointer; -webkit-appearance: none; appearance: none;
}
.parts-bar__stock:hover { border-color: var(--parts-fog); }
.parts-bar__stock[aria-pressed="true"] { border-color: var(--parts-ink); background: var(--parts-sand); font-weight: 500; }
/* the box, and the check drawn in it (an SVG mask, filled from a token): Inter's glyph sat off-centre */
.parts-bar__stock::before { content: ""; flex-shrink: 0; width: 15px; height: 15px; border: 1px solid var(--parts-fog); border-radius: var(--parts-radius-check); background: var(--parts-bg); }
.parts-bar__stock[aria-pressed="true"]::before { background: var(--parts-ink); border-color: var(--parts-ink); }
.parts-bar__stock[aria-pressed="true"]::after {
  content: ""; position: absolute; left: 12px; top: 50%; width: 11px; height: 11px; margin-top: -5.5px; background: var(--parts-bg);
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M3.5 8.5l3 3 6-6.5' fill='none' stroke='black' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center / 11px 11px no-repeat;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M3.5 8.5l3 3 6-6.5' fill='none' stroke='black' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center / 11px 11px no-repeat;
}
/* the sort: the counter's select, its chevron two hairlines drawn in ink */
.parts-bar__sort {
  width: auto; min-width: 0; height: 32px; margin: 0; padding: 0 28px 0 10px;
  border: 1px solid var(--parts-dove); border-radius: var(--parts-radius); color: var(--parts-ink); font: 400 14px/20px var(--parts-font);
  -webkit-appearance: none; appearance: none; cursor: pointer;
  background-color: var(--parts-bg);
  background-image:
    linear-gradient(45deg, transparent calc(50% - .75px), var(--parts-ink) calc(50% - .75px), var(--parts-ink) calc(50% + .75px), transparent calc(50% + .75px)),
    linear-gradient(-45deg, transparent calc(50% - .75px), var(--parts-ink) calc(50% - .75px), var(--parts-ink) calc(50% + .75px), transparent calc(50% + .75px));
  background-size: 5px 5px, 5px 5px; background-position: right 15px center, right 10px center; background-repeat: no-repeat;
}
.parts-bar__sort:hover { border-color: var(--parts-fog); }
.parts-bar__sort:focus { border-color: var(--parts-ink); outline: 2px solid var(--parts-focus); outline-offset: 0; }
.parts-bar__apply {
  height: 32px; margin: 0; padding: 0 14px; border: 1px solid var(--parts-dove); border-radius: var(--parts-radius);
  background: var(--parts-bg); color: var(--parts-ink); font: 600 13px/1 var(--parts-font); cursor: pointer;
}
.parts-bar__apply:hover { background: var(--parts-cream); border-color: var(--parts-ink); }
/* Rows / Grid */
.parts-view { display: inline-flex; margin-left: auto; border: 1px solid var(--parts-dove); border-radius: var(--parts-radius); overflow: hidden; }
.parts-view__btn { width: 36px; height: 32px; margin: 0; padding: 0; border: 0; border-radius: 0; background: var(--parts-bg); color: var(--parts-steel); display: grid; place-items: center; cursor: pointer; -webkit-appearance: none; appearance: none; }
.parts-view__btn + .parts-view__btn { border-left: 1px solid var(--parts-dove); }
.parts-view__btn:hover { background: var(--parts-cream); color: var(--parts-ink); }
.parts-view__btn[aria-pressed="true"] { background: var(--parts-ink); color: var(--parts-bg); }
.parts-view__btn:focus-visible { outline: 2px solid var(--parts-focus); outline-offset: -2px; }

/* ---------- the chips: one per pick, each taking it off, then Clear all ---------- */
.parts-chips { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 10px; }
.parts-chip {
  display: inline-flex; align-items: center; gap: 6px; height: 26px; margin: 0; padding: 0 8px;
  border: 0; border-radius: var(--parts-radius-chip); background: var(--parts-chip-bg); color: var(--parts-ink);
  font: 400 12.5px/1 var(--parts-font); text-decoration: none; white-space: nowrap; cursor: pointer; -webkit-appearance: none; appearance: none;
}
.parts-chip:hover { background: var(--parts-sand-2); }
.parts-chip b { font-weight: 400; color: var(--parts-steel); }
.parts-chip--clear { background: none; color: var(--parts-steel); text-decoration: underline; text-decoration-color: var(--parts-dove); text-underline-offset: 3px; }
.parts-chip--clear:hover { background: none; color: var(--parts-ink); text-decoration-color: var(--parts-ink); }

/* ---------- the ledger: one part per row ---------- */
.parts-ledger { border: 1px solid var(--parts-dove); border-radius: var(--parts-radius-card); background: var(--parts-bg); }
.parts-ledger__head, .parts-row {
  display: grid; align-items: center; column-gap: 12px;
  grid-template-columns: 52px 136px minmax(0, 1fr) 208px 126px 52px 58px;
  padding: 0 12px;
}
.parts-ledger__head {
  position: sticky; top: 0; z-index: 5; height: 30px;
  font-size: 11.5px; font-weight: 500; color: var(--parts-steel); background: var(--parts-cream);
  border-bottom: 1px solid var(--parts-dove); border-radius: var(--parts-radius-card) var(--parts-radius-card) 0 0;
}
.parts-ledger__head > :nth-child(5) { text-align: right; }
.parts-ledger__head > :nth-child(6) { text-align: center; }
.parts-row { min-height: 64px; padding-top: 7px; padding-bottom: 7px; border-bottom: 1px solid var(--parts-dove); }
.parts-row:last-child { border-bottom: 0; border-radius: 0 0 var(--parts-radius-card) var(--parts-radius-card); }
.parts-row:hover { background: var(--parts-cream); }
.parts-row.is-added { background: var(--parts-accent-bg); }

/* the thumbnail: a button that opens the lightbox, the peek beside it on hover */
.parts-row__img {
  width: 52px; height: 44px; margin: 0; padding: 0; overflow: hidden; display: grid; place-items: center;
  border: 1px solid var(--parts-cream); border-radius: var(--parts-radius-photo); background: var(--parts-photo-bg);
  color: inherit; font: inherit; cursor: zoom-in; -webkit-appearance: none; appearance: none;
}
.parts-row__img img { width: 100%; height: 100%; object-fit: contain; transition: transform .18s ease; }
.parts-row__img:hover img, .parts-row__img:focus-visible img { transform: scale(1.12); }
.parts-row__img:hover { border-color: var(--parts-dove); }
.parts-row__img:focus-visible { outline: 2px solid var(--parts-focus); outline-offset: 1px; }

.parts-row__num { min-width: 0; display: grid; line-height: 17px; }
.parts-row__num :is(a, b) { font: 700 13.5px/18px var(--parts-mono); letter-spacing: -.02em; text-decoration: none; word-break: break-all; }
.parts-row__num a:hover { text-decoration: underline; }
.parts-row__num span { font-size: 12px; color: var(--parts-steel); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.parts-row__desc { min-width: 0; display: grid; gap: 2px; }
.parts-row__title {
  font-weight: 500; line-height: 18px; text-decoration: none; overflow-wrap: anywhere;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.parts-row__title:hover { text-decoration: underline; }
.parts-row__meta { font-size: 12px; color: var(--parts-fog); }
.parts-row__stock, .parts-row__price { min-width: 0; }

/* the buy cell: the form draws no box, so the quantity and Add take the last two columns */
.parts-row__buy { display: contents; }
.parts-row__qty, .parts-row__buy > .parts-qty { justify-self: center; }
.parts-row__add, .parts-row__buy > .parts-btn { min-width: 0; }
.parts-row__buy .parts-btn { width: 100%; height: 32px; padding: 0 12px; }
/* a part that cannot be added says why across the Qty and Add columns */
.parts-row__nudge { grid-column: 6 / -1; justify-self: end; text-align: right; font-size: 12px; line-height: 16px; color: var(--parts-steel); }
.parts-row__nudge a { font-weight: 600; color: var(--parts-ink); }
/* kit-cart.js says a failed add on a line after Add: across the row, under the buy cell */
.parts-row .kit-cart-error { grid-column: 1 / -1; justify-self: end; margin: 4px 0 0; color: var(--parts-cart-error); font-size: 12px; line-height: 16px; }

/* ---------- verdicts, stock, price, quantity (a row, a card, the lightbox) ---------- */
.parts-fit { display: inline-flex; align-items: center; gap: 5px; font-size: 12.5px; font-weight: 500; line-height: 18px; }
.parts-fit svg { flex-shrink: 0; }
.parts-fit--fits { color: var(--parts-fit-strong); }
.parts-fit--fits svg { color: var(--parts-fit); }
.parts-fit--universal { color: var(--parts-steel); }
.parts-fit--unknown { color: var(--parts-fog); font-weight: 400; }
.parts-fit--no { color: var(--parts-red); font-weight: 400; }

.parts-stock { display: grid; gap: 1px; font-size: 12px; line-height: 17px; }
.parts-stock b { display: inline-flex; align-items: center; gap: 6px; font-weight: 600; }
.parts-stock b::before { content: ""; flex-shrink: 0; width: 7px; height: 7px; border-radius: var(--parts-radius-round); background: var(--parts-stock); }
.parts-stock--out b::before { background: var(--parts-stock-wait); }
.parts-stock span { color: var(--parts-steel); }

.parts-price { text-align: right; display: grid; gap: 1px; }
.parts-price b { font: 700 15.5px/20px var(--parts-mono); font-variant-numeric: tabular-nums; letter-spacing: -.02em; }
.parts-price small { font-size: 11.5px; line-height: 15px; color: var(--parts-fog); white-space: nowrap; }
.parts-price small .parts-mono { font-size: 11.5px; }

.parts-qty {
  width: 52px; height: 32px; margin: 0; padding: 0 4px; text-align: center;
  border: 1px solid var(--parts-qty-border); border-radius: var(--parts-radius); background: var(--parts-bg); color: var(--parts-ink);
  font: 400 14px/20px var(--parts-mono); font-variant-numeric: tabular-nums; -moz-appearance: textfield;
}
.parts-qty::-webkit-inner-spin-button, .parts-qty::-webkit-outer-spin-button { -webkit-appearance: none; margin: 0; }
.parts-qty:focus { border-color: var(--parts-ink); }

/* while the next listing is fetched (parts.js swaps #parts-listing), what it will replace dims */
.parts[aria-busy="true"] :is(.parts-bar, .parts-chips, .parts-ledger, .parts-pager, .parts-empty) { opacity: .5; transition: opacity .15s; }

/* ---------- the pager ---------- */
.parts-pager { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-top: 14px; }
.parts-pager__list { display: flex; align-items: center; gap: 4px; }
.parts-pager__n {
  display: inline-grid; place-items: center; min-width: 32px; height: 32px; padding: 0 6px;
  border: 1px solid var(--parts-dove); border-radius: var(--parts-radius);
  font: 500 13px/1 var(--parts-mono); font-variant-numeric: tabular-nums; text-decoration: none;
}
a.parts-pager__n:hover { border-color: var(--parts-ink); background: var(--parts-cream); }
.parts-pager__n[aria-current="page"] { background: var(--parts-ink); border-color: var(--parts-ink); color: var(--parts-bg); }
.parts-pager__gap { color: var(--parts-fog); padding: 0 2px; }
.parts-pager__of { margin-left: auto; font-size: 12.5px; color: var(--parts-steel); }
.parts-pager__step {
  display: inline-flex; align-items: center; justify-content: center; height: 32px; padding: 0 14px;
  border: 1px solid var(--parts-dove); border-radius: var(--parts-radius); background: var(--parts-bg); color: var(--parts-ink);
  font: 600 13px/1 var(--parts-font); text-decoration: none; white-space: nowrap;
}
.parts-pager__step:hover { background: var(--parts-cream); border-color: var(--parts-ink); }
/* Per page, a line of its own at the right */
.parts-pager__per { flex-basis: 100%; display: flex; justify-content: flex-end; align-items: baseline; gap: 4px; font-size: 12.5px; color: var(--parts-steel); }
.parts-pager__size { padding: 0 4px; color: var(--parts-ink); font-family: var(--parts-mono); text-decoration: none; }
.parts-pager__size:hover { text-decoration: underline; }
.parts-pager__size[aria-current] { font-weight: 700; text-decoration: underline; text-underline-offset: 3px; }

/* ---------- the empty state: a panel with the reason, a search and the categories ---------- */
.parts-empty {
  display: grid; gap: 14px; justify-items: start; padding: 28px 24px;
  border: 1px solid var(--parts-dove); border-radius: var(--parts-radius-card); background: var(--parts-bg);
}
.parts-empty h2 { font-size: 18px; line-height: 24px; }
.parts-empty p { max-width: 60ch; color: var(--parts-steel); }
.parts-empty .parts-chips { margin-bottom: 0; }
.parts-empty > .parts-chip--clear { height: auto; padding: 0; }
.parts-empty__search { display: flex; gap: 8px; width: min(100%, 520px); }
.parts-empty__label { margin-bottom: 6px; color: var(--parts-fog); }
.parts-input, .parts-empty__search input:not([type="hidden"]) {
  flex: 1; min-width: 0; height: 40px; padding: 0 10px; border: 1px solid var(--parts-dove); border-radius: var(--parts-radius);
  background: var(--parts-bg); color: var(--parts-ink); font: 400 14px/20px var(--parts-mono);
}
.parts-input:hover, .parts-empty__search input:hover { border-color: var(--parts-fog); }
.parts-input:focus, .parts-empty__search input:focus { border-color: var(--parts-ink); outline: 2px solid var(--parts-focus); outline-offset: 0; }
.parts-empty__search button { height: 40px; }
.parts-empty__search button:not(.parts-btn) {
  padding: 0 14px; border: 1px solid var(--parts-ink); border-radius: var(--parts-radius); background: var(--parts-ink); color: var(--parts-bg);
  font: 600 13px/1 var(--parts-font); cursor: pointer;
}

/* ---------- the peek: the thumbnail large beside the pointer, rows only, a fine pointer only ---------- */
.parts-peek {
  position: fixed; z-index: 60; width: 320px; height: 260px; padding: 10px;
  background: var(--parts-bg); border: 1px solid var(--parts-dove); border-radius: var(--parts-radius-card);
  box-shadow: 0 12px 32px color-mix(in srgb, var(--parts-ink) 18%, transparent), 0 0 0 1px color-mix(in srgb, var(--parts-ink) 4%, transparent);
  pointer-events: none; opacity: 0; transform: translateY(-4px) scale(.97); transform-origin: top left;
  transition: opacity .14s ease, transform .18s cubic-bezier(.2, .8, .2, 1);
}
.parts-peek.is-on { opacity: 1; transform: none; }
.parts-peek.is-up { transform-origin: bottom left; }
.parts-peek[hidden] { display: none; }
.parts-peek img { width: 100%; height: 100%; object-fit: contain; display: block; }

/* ---------- the lightbox: the part's pictures large, its facts beside them ---------- */
.parts-lb {
  width: min(1040px, 94vw); max-height: 90vh; padding: 0; border: 0; border-radius: 8px;
  background: var(--parts-bg); overflow: hidden;
  display: none; grid-template-columns: minmax(0, 1fr) 300px;
  box-shadow: 0 30px 80px color-mix(in srgb, var(--parts-ink) 35%, transparent);
}
.parts-lb[open] { display: grid; animation: parts-lb-in .2s cubic-bezier(.2, .8, .2, 1); }
.parts-lb::backdrop { background: color-mix(in srgb, var(--parts-ink) 62%, transparent); animation: parts-lb-fade .2s ease; }
@keyframes parts-lb-in { from { opacity: 0; transform: translateY(8px) scale(.98); } }
@keyframes parts-lb-fade { from { opacity: 0; } }
@keyframes parts-lb-swap { from { opacity: 0; transform: scale(.985); } }
.parts-lb__close {
  position: absolute; top: 10px; right: 10px; z-index: 3; width: 36px; height: 36px; margin: 0; padding: 0;
  border: 1px solid var(--parts-dove); border-radius: var(--parts-radius-round); background: var(--parts-bg); color: var(--parts-ink);
  display: grid; place-items: center; cursor: pointer;
}
.parts-lb__close:hover { background: var(--parts-cream); border-color: var(--parts-ink); }
.parts-lb__stage { position: relative; display: grid; grid-template-rows: minmax(0, 1fr) auto; min-height: 420px; background: var(--parts-cream); }
.parts-lb__fig { margin: 0; display: grid; place-items: center; min-height: 0; padding: 28px 64px 12px; }
.parts-lb__img { max-width: 100%; max-height: min(62vh, 560px); object-fit: contain; display: block; }
.parts-lb__img.is-swapping { animation: parts-lb-swap .16s ease; }
.parts-lb__nav {
  position: absolute; top: 50%; z-index: 2; transform: translateY(-50%); width: 40px; height: 40px; margin: 0; padding: 0;
  border: 1px solid var(--parts-dove); border-radius: var(--parts-radius-round); background: var(--parts-bg); color: var(--parts-ink);
  display: grid; place-items: center; cursor: pointer;
}
.parts-lb__nav:hover { border-color: var(--parts-ink); }
.parts-lb__nav--prev { left: 12px; }
.parts-lb__nav--next { right: 12px; }
.parts-lb__thumbs { display: flex; gap: 6px; justify-content: center; flex-wrap: wrap; min-height: 10px; padding: 0 16px 10px; }
.parts-lb__thumb { width: 54px; height: 44px; margin: 0; padding: 2px; border: 1px solid var(--parts-dove); border-radius: var(--parts-radius-photo); background: var(--parts-bg); cursor: pointer; }
.parts-lb__thumb img { width: 100%; height: 100%; object-fit: contain; display: block; }
.parts-lb__thumb[aria-current="true"] { border-color: var(--parts-ink); box-shadow: 0 0 0 1px var(--parts-ink); }
.parts-lb__count { position: absolute; left: 14px; top: 12px; margin: 0; font-size: 11.5px; color: var(--parts-fog); }
.parts-lb__side { display: grid; align-content: start; gap: 6px; padding: 44px 22px 22px; border-left: 1px solid var(--parts-dove); }
.parts-lb__num { margin: 0; font: 700 14px/18px var(--parts-mono); letter-spacing: -.02em; }
.parts-lb__brand { margin: 0; font-size: 12.5px; color: var(--parts-steel); }
.parts-lb__title { margin: 4px 0 2px; font-size: 17px; line-height: 23px; font-weight: 600; letter-spacing: -.01em; }
.parts-lb__price { margin-top: 10px; display: grid; gap: 1px; }
.parts-lb__price b { font: 700 22px/26px var(--parts-mono); font-variant-numeric: tabular-nums; letter-spacing: -.02em; }
.parts-lb__price small { font-size: 12px; color: var(--parts-fog); }
.parts-lb__price small:empty { display: none; }
.parts-lb__buy { display: grid; grid-template-columns: 60px 1fr; gap: 8px; margin-top: 12px; }
.parts-lb__buy .parts-qty { width: 100%; height: 40px; }
.parts-lb__buy .parts-btn { height: 40px; }
.parts-lb__open { margin-top: 8px; justify-content: center; }
.parts-lb__hint { margin: 14px 0 0; font-size: 11.5px; color: var(--parts-fog); }
.parts-lb .parts-fit { margin: 2px 0 0; }
.parts-lb .parts-fit--fits::before { content: "\2713\00a0"; }
.parts-lb .parts-fit--no::before { content: "\2715\00a0"; }
.parts-lb .parts-stock { margin-top: 8px; }

/* ---------- the grid: the same rows laid out as cards (Rows / Grid, remembered on body) ---------- */
body[data-parts-view="grid"] .parts-ledger { display: grid; grid-template-columns: repeat(auto-fill, minmax(224px, 1fr)); gap: 12px; border: 0; border-radius: 0; background: transparent; }
body[data-parts-view="grid"] .parts-ledger__head { display: none; }
body[data-parts-view="grid"] .parts-row {
  grid-template-columns: 60px minmax(0, 1fr); column-gap: 8px; row-gap: 4px; align-items: start; align-content: start;
  grid-template-areas: "img img" "num num" "desc desc" "stock stock" "price price" "qty add";
  min-height: 0; padding: 10px; border: 1px solid var(--parts-dove); border-radius: var(--parts-radius-card); background: var(--parts-bg);
  transition: border-color .12s ease, box-shadow .12s ease;
}
body[data-parts-view="grid"] .parts-row:hover { background: var(--parts-bg); border-color: var(--parts-ink); box-shadow: 0 0 0 1px var(--parts-ink); }
body[data-parts-view="grid"] .parts-row.is-added { background: var(--parts-accent-bg); }
body[data-parts-view="grid"] .parts-row__img { grid-area: img; width: 100%; height: auto; aspect-ratio: 4 / 3; margin-bottom: 4px; border-color: var(--parts-cream); background: var(--parts-cream); }
body[data-parts-view="grid"] .parts-row__img:hover { border-color: var(--parts-dove); }
body[data-parts-view="grid"] .parts-row__img img { padding: 8px; }
body[data-parts-view="grid"] .parts-row__num { grid-area: num; display: flex; gap: 8px; align-items: baseline; justify-content: space-between; }
body[data-parts-view="grid"] .parts-row__num :is(a, b) { font-size: 13px; }
body[data-parts-view="grid"] .parts-row__desc { grid-area: desc; }
body[data-parts-view="grid"] .parts-row__title { font-size: 13.5px; }
body[data-parts-view="grid"] .parts-row__stock { grid-area: stock; margin-top: 2px; }
body[data-parts-view="grid"] .parts-row__price { grid-area: price; justify-self: start; margin-top: 4px; }
body[data-parts-view="grid"] .parts-row__price .parts-price { text-align: left; }
body[data-parts-view="grid"] .parts-row__price .parts-price b { font-size: 17px; }
body[data-parts-view="grid"] :is(.parts-row__qty, .parts-row__buy > .parts-qty) { grid-area: qty; justify-self: stretch; margin-top: 6px; }
body[data-parts-view="grid"] .parts-row .parts-qty { width: 100%; height: 36px; }
body[data-parts-view="grid"] :is(.parts-row__add, .parts-row__buy > .parts-btn) { grid-area: add; margin-top: 6px; }
body[data-parts-view="grid"] .parts-row__buy .parts-btn { height: 36px; }
body[data-parts-view="grid"] .parts-row__nudge { grid-area: qty / qty / add / add; justify-self: start; text-align: left; margin-top: 6px; }
body[data-parts-view="grid"] .parts-row .kit-cart-error { justify-self: start; }

/* ====================================================== the narrower screens (the counter's breakpoints) */

/* the rail folds behind its Filters toggle, over the main column */
@media (max-width: 1024px) {
  .parts-layout { grid-template-columns: minmax(0, 1fr); gap: 10px; }
  .parts-rail { position: static; }
  .parts-rail__body {
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); align-items: start; gap: 14px 24px;
    margin-top: 10px; padding: 12px; border: 1px solid var(--parts-dove); border-radius: var(--parts-radius-rail); background: var(--parts-bg);
  }
}

@media (max-width: 900px) {
  .parts-ledger__head, .parts-row { grid-template-columns: 52px 128px minmax(0, 1fr) 128px 100px 48px 54px; column-gap: 10px; }
  .parts-qty { width: 48px; }
}

/* a phone: a row folds to thumb + number and title, availability, then price | qty | Add */
@media (max-width: 760px) {
  .parts-ledger__head { display: none; }
  .parts-row {
    grid-template-columns: 56px minmax(0, 1fr) auto auto;
    grid-template-areas: "img num num num" "img desc desc desc" "stock stock stock stock" "price price qty add";
    row-gap: 6px; padding: 10px 12px;
  }
  .parts-row__img { grid-area: img; width: 56px; height: 56px; align-self: start; }
  .parts-row__num { grid-area: num; display: flex; gap: 8px; align-items: baseline; flex-wrap: wrap; }
  .parts-row__desc { grid-area: desc; }
  .parts-row__stock { grid-area: stock; }
  .parts-row__price { grid-area: price; justify-self: start; }
  .parts-row__price .parts-price { text-align: left; }
  .parts-price--none small { text-align: left; }
  :is(.parts-row__qty, .parts-row__buy > .parts-qty) { grid-area: qty; }
  :is(.parts-row__add, .parts-row__buy > .parts-btn) { grid-area: add; }
  .parts-row .parts-qty { width: 52px; height: 36px; }
  .parts-row__buy .parts-btn { height: 36px; padding: 0 16px; }
  .parts-row__nudge { grid-area: auto; grid-column: 3 / 5; grid-row: 4; }
  .parts-pager__list { display: none; }
  .parts-pager__of { margin: 0 auto; }
  .parts-view { margin-left: 0; }
  .parts-lb { grid-template-columns: 1fr; max-height: 92vh; overflow: auto; }
  .parts-lb__stage { min-height: 300px; }
  .parts-lb__fig { padding: 20px 52px 8px; }
  .parts-lb__img { max-height: 42vh; }
  .parts-lb__side { border-left: 0; border-top: 1px solid var(--parts-dove); padding: 18px; }
}

@media (max-width: 480px) {
  .parts-mast h1 { font-size: 19px; line-height: 24px; }
  .parts-empty { padding: 20px 14px; }
  body[data-parts-view="grid"] .parts-ledger { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
  body[data-parts-view="grid"] .parts-row { padding: 8px; }
  body[data-parts-view="grid"] .parts-row__num { flex-direction: column; gap: 0; }
  body[data-parts-view="grid"] .parts-row__num span { white-space: normal; }
}

@media (prefers-reduced-motion: reduce) {
  .parts-row__img img, .parts-peek, body[data-parts-view="grid"] .parts-row, .parts-btn { transition: none; }
  .parts-lb[open], .parts-lb::backdrop, .parts-lb__img.is-swapping { animation: none; }
}
@media (hover: none), (pointer: coarse) {
  .parts-peek { display: none !important; }
}

}