/* ---------------------------------------------------------------------------
   Outsource China — product page as a master trade blueprint

   A drawing title block; a coordinate sheet with the reference figure;
   numbered blocks (parameters, compliance register, customisation vectors,
   supply route, notes, gates); and the Trade Orchestration Dock — a plate
   console, not a shop's buy box. Builds on intel.css and the index styles
   in corridor.css. The photo always sits on --photo-plate; gridlines,
   rulers and registration marks stay outside it.
--------------------------------------------------------------------------- */

.bp { padding-bottom: var(--s-7); }

/* --- Title block ------------------------------------------------------------ */

.tb {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 560px); gap: 0;
  margin: var(--s-5) 0 var(--s-4);
  background: var(--surface); border: 1.5px solid var(--text); border-radius: 0;
}
.tb__path {
  grid-column: 1 / -1; display: flex; flex-wrap: wrap; gap: 6px; padding: 6px var(--s-4);
  border-bottom: 1px solid var(--text);
  font: 600 10.5px/1.4 var(--mono); text-transform: uppercase; letter-spacing: var(--track-label);
}
.tb__path a { color: var(--text-subtle); }
.tb__path a:hover { color: var(--accent); text-decoration: none; }
.tb__main { padding: var(--s-4); border-right: 1px solid var(--text); }
.tb__doc { margin: 0 0 var(--s-2); color: var(--signal); }
.tb__title { margin: 0; font-size: 28px; line-height: 1.15; max-width: 30ch; }
.tb__lede { margin: var(--s-2) 0 0; max-width: 64ch; color: var(--text-muted); font-size: 14px; }
.tb__grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); margin: 0; }
.tb__cell { padding: 7px 10px; border-bottom: 1px solid var(--grid-line-strong); border-left: 1px solid var(--grid-line-strong); min-width: 0; }
.tb__cell:nth-child(3n + 1) { border-left: 0; }
.tb__cell--wide { grid-column: span 3; border-left: 0; }
.tb__cell--two { grid-column: span 2; }
.tb__grid > :last-child { border-bottom: 0; }
.tb__cell dt { font: 600 9.5px/1.2 var(--mono); text-transform: uppercase; letter-spacing: var(--track-label); color: var(--text-subtle); }
.tb__cell dd { margin: 3px 0 0; font-size: 12.5px; font-weight: 600; overflow-wrap: anywhere; }
.tb__cell--ref dd { font-size: 18px; color: var(--signal); }
.tb__status { display: inline-block; padding: 1px 6px; border: 1px solid var(--success); border-radius: 2px; font: 700 10.5px/1.4 var(--mono); text-transform: uppercase; color: var(--success); }
.tb__status.is-draft { border-color: var(--warning); color: var(--warning); }
.vec--lg { grid-template-columns: repeat(4, 22px); }
.vec--lg li { height: 22px; font-size: 11px; }

/* --- Layout: sheet | dock --------------------------------------------------- */

.bp-layout { display: grid; grid-template-columns: minmax(0, 1fr) 360px; gap: var(--s-5); align-items: start; }
.bp-sheet { min-width: 0; display: grid; gap: var(--s-4); }
.bp-sheet > .ifr + .ifr { margin-top: 0; }
.bp-sheet .ifr { border-color: var(--border-strong); border-radius: var(--radius); scroll-margin-top: var(--sticky-top); }
.bp-pad { padding: var(--s-3) var(--s-4); }
.bp-note { display: flex; flex-wrap: wrap; align-items: center; gap: var(--s-2); margin: var(--s-3) 0 0; font-size: 12.5px; color: var(--text-muted); }
.bp-pad.bp-note { margin: 0; }
.bp-note .tag:hover { text-decoration: none; }

/* --- Figure on a coordinate sheet ------------------------------------------- */

.fig { margin: 0; padding: var(--s-4); background: var(--surface); border: 1px solid var(--border-strong); border-radius: var(--radius); }
.fig__sheet {
  position: relative; display: grid; grid-template-columns: 22px minmax(0, 1fr); grid-template-rows: 22px auto;
  /* The engineering grid lives on the sheet margin, never on the photo. */
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 24px 24px;
  background-color: var(--surface-sunken);
  border: 1px solid var(--grid-line-strong);
}
.fig__ruler { display: grid; margin: 0; padding: 0; list-style: none; font: 600 10px/1 var(--mono); color: var(--text-subtle); }
.fig__ruler li { display: grid; place-items: center; }
.fig__ruler--x { grid-column: 2; grid-row: 1; grid-template-columns: repeat(6, 1fr); border-bottom: 1px solid var(--grid-line-strong); }
.fig__ruler--x li + li { border-left: 1px solid var(--grid-line); }
.fig__ruler--y { grid-column: 1; grid-row: 2; grid-template-rows: repeat(4, 1fr); border-right: 1px solid var(--grid-line-strong); }
.fig__ruler--y li + li { border-top: 1px solid var(--grid-line); }
.fig__plate {
  position: relative; grid-column: 2; grid-row: 2; margin: 28px;
  display: grid; place-items: center; aspect-ratio: 2 / 1;
  background: var(--photo-plate); border: 1px solid var(--grid-line-strong);
}
.fig__plate img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; padding: 14px; }
.fig__mark { position: absolute; width: 18px; height: 18px; pointer-events: none; border: 0 solid var(--signal); }
.fig__mark--tl { top: -10px; left: -10px; border-top-width: 1.5px; border-left-width: 1.5px; }
.fig__mark--tr { top: -10px; right: -10px; border-top-width: 1.5px; border-right-width: 1.5px; }
.fig__mark--bl { bottom: -10px; left: -10px; border-bottom-width: 1.5px; border-left-width: 1.5px; }
.fig__mark--br { bottom: -10px; right: -10px; border-bottom-width: 1.5px; border-right-width: 1.5px; }
.fig__cap { display: flex; flex-wrap: wrap; gap: 4px var(--s-3); margin-top: var(--s-3); font-size: 12px; color: var(--text-muted); }
.fig__cap .label-mono { color: var(--text); }
.fig__views { display: flex; flex-wrap: wrap; gap: 4px; margin-top: var(--s-2); }
.fig__views button {
  min-width: 38px; padding: 3px 8px; cursor: pointer;
  border: 1px solid var(--border-strong); border-radius: 2px; background: var(--surface);
  font: 600 11px/1.4 var(--mono); color: var(--text-muted);
}
.fig__views button:hover { border-color: var(--text-muted); color: var(--text); }
.fig__views button.is-active { border-color: var(--signal); background: var(--signal-subtle); color: var(--signal); }

/* --- Parameters ------------------------------------------------------------- */

.bp-params .dgrid + .dgrid { border-top: 1px solid var(--grid-line-strong); }
.bp-params__cap { caption-side: top; padding: 8px var(--s-4); text-align: left; background: var(--surface-sunken); border-bottom: 1px solid var(--grid-line); }
.bp-params .dgrid tbody th { width: 40%; font-weight: 600; color: var(--text-muted); }
.bp-params .dgrid td.num { font-size: 13px; font-weight: 600; }
.dgrid__flag { width: 1%; white-space: nowrap; text-align: right; }

/* --- Compliance register ---------------------------------------------------- */

.creg tbody th a, .creg tbody th > .num { display: block; font-weight: 700; color: var(--text); }
.creg__name { display: block; font-size: 11.5px; font-weight: 400; color: var(--text-subtle); }
.state { display: inline-block; padding: 1px 6px; border-radius: 2px; font: 600 10.5px/1.5 var(--mono); text-transform: uppercase; letter-spacing: .03em; white-space: nowrap; }
.state--declared { color: var(--cx-declared); background: var(--cx-declared-subtle); }
.state--pending  { color: var(--text-muted); border: 1px dashed var(--border-strong); }
.bp-matrix { border-top: 1px solid var(--grid-line-strong); }
.bp-matrix > summary { cursor: pointer; font-size: 13px; font-weight: 600; color: var(--accent); }
.bp-matrix[open] > summary { margin-bottom: var(--s-3); }

/* --- Customisation vectors (radio cards; work with no script) --------------- */

.pathways { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0; border: 1px solid var(--border-strong); }
.pathway {
  position: relative; display: grid; gap: var(--s-2); align-content: start; margin: 0;
  padding: var(--s-3); font-weight: 400; color: var(--text); cursor: pointer;
}
.pathway + .pathway { border-left: 1px solid var(--border-strong); }
.pathway:hover { background: var(--surface-hover); }
.pathway input { position: absolute; opacity: 0; pointer-events: none; }
.pathway__head b { display: block; font: 700 16px/1.2 var(--mono); }
.pathway__head small { display: block; margin-top: 2px; font-size: 12.5px; color: var(--text-muted); }
.pathway__body { font-size: 13px; }
.pathway__needs { font-size: 10px; }
.pathway__body, .pathway__needs { display: none; }
.pathway:has(input:checked) { background: var(--signal-subtle); box-shadow: inset 0 3px 0 var(--signal); }
.pathway:has(input:checked) .pathway__body,
.pathway:has(input:checked) .pathway__needs { display: block; }
.pathway:has(input:focus-visible) { box-shadow: var(--ring); }

/* --- Supply route ----------------------------------------------------------- */

.route {
  display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 0;
  margin: 0 0 var(--s-4); padding: 0; list-style: none; counter-reset: route;
}
.route__node {
  position: relative; display: grid; align-content: start; gap: 2px;
  padding: 26px 10px 10px 0; font-size: 12px;
}
/* The line between nodes */
.route__node::before { content: ""; position: absolute; top: 9px; left: 0; right: 0; height: 1.5px; background: var(--border-strong); }
.route__node::after {
  content: ""; position: absolute; top: 4px; left: 0; width: 11px; height: 11px;
  background: var(--surface); border: 1.5px solid var(--signal); border-radius: 50%;
}
.route__node:last-child::before { right: 50%; }
.route__n { font-size: 10.5px; font-weight: 700; color: var(--signal); }
.route__node strong { font-size: 12.5px; line-height: 1.25; }
.route__node small { color: var(--text-muted); line-height: 1.35; }
.route__handover { display: none; margin-top: 4px; font: 700 10px/1.3 var(--mono); font-style: normal; text-transform: uppercase; letter-spacing: .04em; color: var(--brand-contrast); background: var(--brand); padding: 2px 5px; justify-self: start; }
.route__node.is-handover::after { background: var(--brand); border-color: var(--brand); box-shadow: 0 0 0 4px var(--brand-subtle); }
.route__node.is-handover .route__handover { display: block; }
.inco tbody th { width: 64px; font-weight: 700; }
.inco tbody td { font-size: 12.5px; color: var(--text-muted); }
.inco tr.is-current > * { background: var(--brand-subtle); color: var(--text); }

.bp-prose { font-size: 14px; }
.bp-prose h2, .bp-prose h3 { font-size: 15px; margin-top: var(--s-4); }
.ifr .gates { border: 0; border-radius: 0; background: none; }

/* --- Trade Orchestration Dock ---------------------------------------------- */

.tod {
  position: sticky; top: var(--sticky-top);
  max-height: calc(100vh - var(--sticky-top) - 12px); overflow-y: auto; overscroll-behavior: contain;
  background: var(--plate-1); color: var(--plate-text);
  border: 1px solid var(--plate-line-strong); border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
}
.tod__head { display: flex; align-items: center; justify-content: space-between; gap: var(--s-2); padding: 10px var(--s-4); background: var(--plate-0); border-bottom: 1px solid var(--plate-line); }
.tod__title { margin: 0; color: var(--signal-on-plate); }
.tod__ref { font-size: 13px; font-weight: 700; color: var(--plate-text); }
.tod__basis { margin: 0; padding: 8px var(--s-4); border-bottom: 1px solid var(--plate-line); font: 500 10.5px/1.5 var(--mono); color: var(--plate-text-muted); }
.tod__form { display: grid; gap: var(--s-3); padding: var(--s-4); }
.tod__step { margin: 0; padding: 0; border: 0; min-width: 0; }
.tod__step > label, .tod__step > legend, .tod__step--split > div > label {
  display: flex; align-items: baseline; gap: 6px; margin: 0 0 5px; padding: 0;
  font: 600 11px/1.3 var(--mono); text-transform: uppercase; letter-spacing: .06em; color: var(--plate-text-muted);
}
.tod__step .num, .tod__tco .num { color: var(--signal-on-plate); }
.tod__opt { margin-left: auto; text-transform: none; letter-spacing: 0; opacity: .7; }
.tod input[type="number"], .tod input[type="text"], .tod select, .tod textarea {
  background: var(--plate-0); color: var(--plate-text); border: 1px solid var(--plate-line-strong);
  border-radius: var(--radius-sm); font-size: 13.5px;
}
.tod input::placeholder, .tod textarea::placeholder { color: var(--plate-text-muted); }
.tod input:focus, .tod select:focus, .tod textarea:focus { border-color: var(--signal-on-plate); box-shadow: var(--ring-plate); }
.tod textarea { min-height: 56px; }
.tod__step--split { display: grid; grid-template-columns: 1fr 1fr; gap: var(--s-2); }
.tod__step--split .tod__read { grid-column: 1 / -1; }
.tod__read { margin: 6px 0 0; font-size: 11.5px; line-height: 1.45; color: var(--plate-text-muted); }
.tod__read:empty { display: none; }
.tod__read b { font-family: var(--mono); color: var(--plate-text); }
.tod__fw { display: inline-block; margin: 2px 2px 0 0; padding: 1px 5px; border-radius: 2px; font: 600 10.5px/1.5 var(--mono); }
.tod__fw--required { color: #1a1204; background: var(--caution-on-plate); }
.tod__fw--common   { color: var(--plate-text); border: 1px solid var(--plate-line-strong); }

.tod__seg { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--plate-line-strong); border-radius: var(--radius-sm); overflow: hidden; }
.tod__seg label { position: relative; margin: 0; text-align: center; cursor: pointer; text-transform: none; letter-spacing: 0; }
.tod__seg label + label { border-left: 1px solid var(--plate-line-strong); }
.tod__seg input { position: absolute; opacity: 0; }
.tod__seg span { display: block; padding: 7px 0; font: 700 12px/1 var(--mono); color: var(--plate-text-muted); }
.tod__seg input:checked + span { background: var(--signal-on-plate); color: var(--plate-0); }
.tod__seg input:focus-visible + span { box-shadow: inset var(--ring-plate); }

.tod__tco {
  display: flex; gap: var(--s-2); align-items: flex-start; margin: 0; padding: var(--s-3);
  border: 1px dashed var(--plate-line-strong); border-radius: var(--radius-sm); cursor: pointer; color: var(--plate-text); font-weight: 400;
}
.tod__tco input { width: auto; margin: 2px 0 0; accent-color: var(--signal-on-plate); }
.tod__tco b { display: block; font: 600 11px/1.3 var(--mono); text-transform: uppercase; letter-spacing: .06em; }
.tod__tco small { display: block; margin-top: 3px; font-size: 12px; color: var(--plate-text-muted); }
.tod__tco:has(input:checked) { border-style: solid; border-color: var(--signal-on-plate); background: rgba(90, 215, 239, .08); }

.tod__fine { margin: 0; text-align: center; font-size: 11.5px; color: var(--plate-text-muted); }
.tod__aux { display: grid; gap: var(--s-2); padding: 0 var(--s-4) var(--s-3); }
.tod .tod__link { display: block; padding: 8px; text-align: center; border: 1px solid var(--plate-line-strong); border-radius: var(--radius-sm); font-size: 13px; font-weight: 600; color: var(--plate-text); }
.tod .tod__link:hover { border-color: var(--signal-on-plate); text-decoration: none; }
.tod .wish--button .wish__btn { background: transparent; border-color: var(--plate-line-strong); color: var(--plate-text-muted); }
.tod__trust { display: grid; gap: 5px; margin: 0; padding: var(--s-3) var(--s-4); border-top: 1px solid var(--plate-line); list-style: none; font-size: 11.5px; color: var(--plate-text-muted); }
.tod__trust li { display: flex; gap: var(--s-2); }
.tod__trust li::before { content: "✓"; flex: none; color: var(--ok-on-plate); font-weight: 700; }

/* --- Adjacent specifications ------------------------------------------------ */

.bp-adjacent { margin-top: var(--s-6); }
.bp-adjacent__head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: var(--s-3); margin-bottom: var(--s-3); }
.bp-adjacent__head h2 { margin: 0; font-size: 18px; }

/* Phone bar */
.bp-bar { display: none; }

/* --- Responsive ------------------------------------------------------------- */

@media (max-width: 1240px) {
  .tb { grid-template-columns: 1fr; }
  .tb__main { border-right: 0; border-bottom: 1px solid var(--text); }
  .bp-layout { grid-template-columns: minmax(0, 1fr) 320px; }
  .route { grid-template-columns: repeat(3, minmax(0, 1fr)); row-gap: var(--s-3); }
}

@media (max-width: 900px) {
  .bp-layout { grid-template-columns: 1fr; }
  .tod { position: static; max-height: none; }
  .pathways { grid-template-columns: 1fr; }
  .pathway + .pathway { border-left: 0; border-top: 1px solid var(--border-strong); }
  .fig__plate { margin: 16px; }

  .bp-bar:not([hidden]) {
    position: fixed; left: 0; right: 0; bottom: 0; z-index: var(--z-pop);
    display: flex; align-items: center; justify-content: space-between; gap: var(--s-3);
    padding: 10px 16px calc(10px + env(safe-area-inset-bottom));
    background: var(--plate-0); border-top: 1px solid var(--plate-line);
  }
  .bp-bar__ref { color: var(--plate-text-muted); }
}

@media (max-width: 600px) {
  .tb__grid { grid-template-columns: 1fr 1fr; }
  .tb__cell:nth-child(3n + 1) { border-left: 1px solid var(--grid-line-strong); }
  .tb__cell:nth-child(odd) { border-left: 0; }
  .tb__cell--wide { grid-column: span 2; }
  .route { grid-template-columns: 1fr 1fr; }
  .tod__step--split { grid-template-columns: 1fr; }
}

@media print {
  .tod, .bp-bar, .fig__views, .aihero--product, .bp-adjacent { display: none !important; }
  .bp-layout { grid-template-columns: 1fr; }
  .pathway__body, .pathway__needs { display: block; }
}