/*
  Channel Reserve

  Visual language borrowed from the control cabinet: enclosure grey for the
  ground, an engraved-nameplate bar for the one thing people come here to do
  (type a part number), DIN-style lettering, and indicator-lamp colors used
  the way IEC 60073 uses them: green is normal, amber needs attention, red is
  a fault, blue means an operator has to act.
*/

@font-face { font-family: "Barlow"; font-weight: 400; font-style: normal; font-display: swap; src: url("../fonts/barlow-latin-400-normal.81419bf5abb5.woff2") format("woff2"); }
@font-face { font-family: "Barlow"; font-weight: 500; font-style: normal; font-display: swap; src: url("../fonts/barlow-latin-500-normal.8e986e86d57e.woff2") format("woff2"); }
@font-face { font-family: "Barlow"; font-weight: 600; font-style: normal; font-display: swap; src: url("../fonts/barlow-latin-600-normal.a1e2a2d7d4c0.woff2") format("woff2"); }
@font-face { font-family: "Barlow Semi Condensed"; font-weight: 500; font-style: normal; font-display: swap; src: url("../fonts/barlow-semi-condensed-latin-500-normal.69988ca9d262.woff2") format("woff2"); }
@font-face { font-family: "Barlow Semi Condensed"; font-weight: 600; font-style: normal; font-display: swap; src: url("../fonts/barlow-semi-condensed-latin-600-normal.64a19a7cafc2.woff2") format("woff2"); }
@font-face { font-family: "IBM Plex Mono"; font-weight: 400; font-style: normal; font-display: swap; src: url("../fonts/ibm-plex-mono-latin-400-normal.79936b18df9f.woff2") format("woff2"); }
@font-face { font-family: "IBM Plex Mono"; font-weight: 500; font-style: normal; font-display: swap; src: url("../fonts/ibm-plex-mono-latin-500-normal.b1c8a895f5fd.woff2") format("woff2"); }

:root {
  --ground: #e2e5e2;        /* enclosure grey */
  --panel: #ffffff;
  --sunk: #f1f3f1;
  --ink: #17212b;           /* nameplate */
  --ink-soft: #4b5763;
  --rule: #c4cac5;
  --rule-soft: #dde1dd;
  --blue: #1a4e96;          /* operator action */
  --blue-deep: #123a72;
  --blue-wash: #e6edf7;
  --green: #1e8449;
  --green-wash: #e3f1e8;
  --amber: #b5730c;
  --amber-wash: #fbf0d9;
  --red: #b3261e;
  --red-wash: #f8e4e2;
  --neutral: #8b949c;

  --sans: "Barlow", "Segoe UI", system-ui, sans-serif;
  --display: "Barlow Semi Condensed", "Barlow", "Segoe UI", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;

  --radius: 3px;
  --gutter: 16px;
  --measure: 68ch;
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.5;
}

h1, h2, h3 {
  font-family: var(--display);
  font-weight: 600;
  line-height: 1.15;
  margin: 0;
  text-wrap: balance;
}
h1 { font-size: 2rem; letter-spacing: -0.005em; }
h2 { font-size: 1.375rem; }
h3 { font-size: 1.125rem; }

p { margin: 0 0 0.75rem; max-width: var(--measure); }
p:last-child { margin-bottom: 0; }

a { color: var(--blue); text-underline-offset: 2px; }
a:hover { color: var(--blue-deep); }

:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; }

.part {
  font-family: var(--mono);
  font-weight: 500;
  font-size: 0.9375em;
  letter-spacing: -0.01em;
  overflow-wrap: anywhere;
}

.quiet { color: var(--ink-soft); }
.small { font-size: 0.875rem; }
.nowrap { white-space: nowrap; }
.right { text-align: right; }
.numeric { text-align: right; font-variant-numeric: tabular-nums; }

.visually-hidden {
  position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* --- Top bar ---------------------------------------------------------------- */

.bar { background: var(--ink); color: #fff; }
.bar__inner {
  max-width: 1160px; margin: 0 auto; padding: 0 var(--gutter);
  display: flex; flex-wrap: wrap; align-items: center; column-gap: 28px;
}
.wordmark {
  display: inline-flex; align-items: center; gap: 10px; padding: 14px 0;
  color: #fff; text-decoration: none;
  font-family: var(--display); font-weight: 600; font-size: 1.25rem; letter-spacing: 0.01em;
}
.wordmark:hover { color: #fff; }
.wordmark svg { width: 24px; height: 24px; flex: none; }
.wordmark .mark-block { fill: #6fa8ff; }

.nav { display: flex; flex-wrap: wrap; gap: 2px; flex: 1; }
.nav a {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 16px 12px 13px; border-bottom: 3px solid transparent;
  color: #cfd6dd; text-decoration: none; font-family: var(--display); font-weight: 500; font-size: 1.0625rem;
}
.nav a:hover { color: #fff; }
.nav a.is-current { color: #fff; border-bottom-color: #6fa8ff; }
.nav .count {
  min-width: 22px; padding: 0 6px; border-radius: 11px; background: #6fa8ff; color: var(--ink);
  font-family: var(--sans); font-size: 0.8125rem; font-weight: 600; line-height: 22px; text-align: center;
}

.who { display: flex; align-items: center; gap: 14px; padding: 10px 0; font-size: 0.9375rem; color: #cfd6dd; }
.who a { color: #fff; }
.who form { margin: 0; }
.linkbutton {
  background: none; border: 0; padding: 0; color: #fff; font: inherit; text-decoration: underline;
  text-underline-offset: 2px; cursor: pointer;
}

/* --- Page ------------------------------------------------------------------- */

.page { max-width: 1160px; margin: 0 auto; padding: 28px var(--gutter) 64px; }
.page--narrow { max-width: 480px; }

.pagehead { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 12px 24px; margin-bottom: 20px; }
.pagehead p { margin: 6px 0 0; color: var(--ink-soft); }

.subnav { display: flex; flex-wrap: wrap; gap: 4px 20px; margin: 0 0 20px; padding: 0; list-style: none; border-bottom: 1px solid var(--rule); }
.subnav a { display: block; padding: 8px 0; margin-bottom: -1px; border-bottom: 3px solid transparent; color: var(--ink-soft); text-decoration: none; font-weight: 500; }
.subnav a:hover { color: var(--ink); }
.subnav a.is-current { color: var(--ink); border-bottom-color: var(--blue); }

.panel { background: var(--panel); border: 1px solid var(--rule); border-radius: var(--radius); padding: 20px; }
.panel + .panel, .panel + .columns, .columns + .panel, .stack > * + * { margin-top: 20px; }
.panel > h2, .panel > h3 { margin-bottom: 12px; }
.panel--flush { padding: 0; }
.panel--flush > h2, .panel--flush > .panel__head { padding: 16px 20px 0; }
.panel__head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 8px 16px; margin-bottom: 12px; }
.panel__head h2 { margin: 0; }
.panel__empty { padding: 4px 20px 20px; color: var(--ink-soft); }

.columns { display: grid; gap: 20px; grid-template-columns: repeat(auto-fit, minmax(min(100%, 340px), 1fr)); align-items: start; }
.columns > .panel { margin-top: 0; }

/* --- The nameplate: where a part number goes -------------------------------- */

.nameplate {
  background: var(--ink); border-radius: var(--radius); padding: 22px 24px 20px; color: #fff;
  /* Four fixing screws, as on an engraved tag. */
  background-image:
    radial-gradient(circle at 12px 12px, #5c6975 0 3px, transparent 3.5px),
    radial-gradient(circle at calc(100% - 12px) 12px, #5c6975 0 3px, transparent 3.5px),
    radial-gradient(circle at 12px calc(100% - 12px), #5c6975 0 3px, transparent 3.5px),
    radial-gradient(circle at calc(100% - 12px) calc(100% - 12px), #5c6975 0 3px, transparent 3.5px);
}
.nameplate h1 { color: #fff; margin-bottom: 14px; padding-left: 8px; }
.nameplate form { display: flex; flex-wrap: wrap; gap: 10px; padding: 0 8px; }
.nameplate input[type="search"] {
  flex: 1 1 320px; min-width: 0; height: 60px; padding: 0 16px;
  border: 2px solid #fff; border-radius: var(--radius); background: #fff; color: var(--ink);
  font-family: var(--mono); font-weight: 500; font-size: 1.5rem; letter-spacing: -0.01em;
  text-transform: uppercase;
}
.nameplate input[type="search"]::placeholder { color: #9aa3ab; text-transform: none; font-size: 1.125rem; letter-spacing: 0; }
.nameplate input[type="search"]:focus-visible { outline: 3px solid #6fa8ff; outline-offset: 2px; }
.nameplate button { height: 60px; padding: 0 26px; font-size: 1.125rem; background: #6fa8ff; color: var(--ink); border-color: #6fa8ff; }
.nameplate button:hover { background: #8dbbff; border-color: #8dbbff; color: var(--ink); }
.nameplate p { margin: 12px 8px 0; color: #cfd6dd; font-size: 0.9375rem; max-width: none; }
.nameplate { margin-bottom: 20px; }
.nameplate--compact { padding: 14px 16px; background-image: none; }
.nameplate--compact form { padding: 0; }
.nameplate--compact input[type="search"] { height: 48px; font-size: 1.25rem; }
.nameplate--compact button { height: 48px; }

/* --- Lamps ------------------------------------------------------------------ */

.lamp { display: inline-flex; align-items: center; gap: 8px; font-weight: 500; }
.lamp::before {
  content: ""; width: 10px; height: 10px; border-radius: 50%; flex: none;
  background: var(--neutral); box-shadow: inset 0 0 0 1px rgb(0 0 0 / 0.18);
}
.lamp--green::before { background: var(--green); }
.lamp--amber::before { background: #e0a019; }
.lamp--red::before { background: var(--red); }
.lamp--blue::before { background: var(--blue); }
.lamp--off::before { background: #fff; box-shadow: inset 0 0 0 1.5px var(--neutral); }

/* --- Tables ----------------------------------------------------------------- */

.tablewrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 0.9375rem; }
th, td { padding: 10px 12px; text-align: left; vertical-align: top; }
thead th {
  font-weight: 600; font-size: 0.875rem; color: var(--ink-soft); white-space: nowrap;
  border-bottom: 1px solid var(--rule); background: var(--sunk);
}
tbody tr + tr td { border-top: 1px solid var(--rule-soft); }
th:first-child, td:first-child { padding-left: 20px; }
th:last-child, td:last-child { padding-right: 20px; }
td.numeric, th.numeric { text-align: right; font-variant-numeric: tabular-nums; }
tr.is-muted td { color: var(--ink-soft); }
td .sub { display: block; color: var(--ink-soft); font-size: 0.875rem; }

/* --- Definition rows -------------------------------------------------------- */

.facts { display: grid; grid-template-columns: minmax(120px, max-content) 1fr; gap: 8px 20px; margin: 0; }
.facts dt { color: var(--ink-soft); }
.facts dd { margin: 0; font-weight: 500; overflow-wrap: anywhere; }

.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 0; margin: 0; padding: 0; list-style: none; border: 1px solid var(--rule); border-radius: var(--radius); background: var(--panel); }
.stats li { padding: 16px 20px; border-right: 1px solid var(--rule-soft); border-bottom: 1px solid var(--rule-soft); margin: 0 -1px -1px 0; }
.stats .value { display: block; font-family: var(--display); font-weight: 600; font-size: 1.75rem; line-height: 1.1; font-variant-numeric: tabular-nums; }
.stats .label { display: block; margin-top: 4px; color: var(--ink-soft); font-size: 0.9375rem; }

/* --- Forms ------------------------------------------------------------------ */

label { font-weight: 600; }
.field { margin-bottom: 16px; }
.field > label { display: block; margin-bottom: 4px; }
.field .help { display: block; margin-top: 4px; color: var(--ink-soft); font-size: 0.875rem; max-width: var(--measure); }
.field--check { display: flex; gap: 10px; align-items: flex-start; }
.field--check input { margin-top: 5px; }
.field--check label { font-weight: 500; }

input[type="text"], input[type="email"], input[type="password"], input[type="number"], input[type="date"],
input[type="url"], input[type="search"], input[type="file"], select, textarea {
  width: 100%; max-width: 440px; min-height: 42px; padding: 8px 10px;
  border: 1px solid #8f99a1; border-radius: var(--radius); background: #fff; color: var(--ink);
  font: inherit;
}
textarea { max-width: 560px; min-height: 0; }
input[type="number"] { max-width: 140px; }
input[type="file"] { padding: 6px; }
input:disabled, select:disabled { background: var(--sunk); color: var(--ink-soft); }

.errorlist { margin: 4px 0 0; padding: 0; list-style: none; color: var(--red); font-weight: 500; font-size: 0.9375rem; }
.formerror { margin-bottom: 16px; padding: 10px 14px; border-left: 4px solid var(--red); background: var(--red-wash); border-radius: var(--radius); font-weight: 500; }
.formerror ul { margin: 0; padding: 0; list-style: none; }

button, .button {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 42px; padding: 0 18px; border: 1.5px solid var(--blue); border-radius: var(--radius);
  background: var(--blue); color: #fff; font-family: var(--display); font-weight: 600; font-size: 1.0625rem;
  text-decoration: none; cursor: pointer; white-space: nowrap;
}
button:hover, .button:hover { background: var(--blue-deep); border-color: var(--blue-deep); color: #fff; }
.button--plain { background: #fff; color: var(--ink); border-color: #8f99a1; }
.button--plain:hover { background: var(--sunk); color: var(--ink); border-color: var(--ink); }
.button--danger { background: #fff; color: var(--red); border-color: var(--red); }
.button--danger:hover { background: var(--red); color: #fff; border-color: var(--red); }
.button--small { min-height: 34px; padding: 0 12px; font-size: 0.9375rem; }
.actions { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-top: 16px; }
.inline-form { display: inline-flex; flex-wrap: wrap; gap: 8px; align-items: center; margin: 0; }
.inline-form input[type="number"] { width: 84px; min-height: 34px; padding: 4px 8px; }
.inline-form select { width: auto; min-height: 34px; padding: 4px 8px; }

/* --- Notices ---------------------------------------------------------------- */

.notices { margin: 0 0 20px; padding: 0; list-style: none; }
.notice { padding: 12px 16px; border: 1px solid var(--rule); border-left-width: 4px; border-radius: var(--radius); background: var(--panel); font-weight: 500; }
.notice + .notice { margin-top: 8px; }
.notice--success { border-left-color: var(--green); background: var(--green-wash); }
.notice--error { border-left-color: var(--red); background: var(--red-wash); }
.notice--warning { border-left-color: #e0a019; background: var(--amber-wash); }
.notice--info { border-left-color: var(--blue); background: var(--blue-wash); }
.notice p { max-width: none; }

.callout { padding: 16px 20px; border: 1px solid var(--rule); border-left: 4px solid var(--blue); border-radius: var(--radius); background: var(--blue-wash); }
.callout--amber { border-left-color: #e0a019; background: var(--amber-wash); }
.callout--red { border-left-color: var(--red); background: var(--red-wash); }
.callout--green { border-left-color: var(--green); background: var(--green-wash); }
.callout h2, .callout h3 { margin-bottom: 6px; }

.keybox { display: block; padding: 12px 14px; border: 1px dashed var(--ink-soft); border-radius: var(--radius); background: #fff; font-family: var(--mono); font-size: 0.9375rem; overflow-wrap: anywhere; user-select: all; }

pre.code { margin: 8px 0 0; padding: 12px 14px; background: var(--ink); color: #e8edf2; border-radius: var(--radius); font-family: var(--mono); font-size: 0.8125rem; line-height: 1.55; overflow-x: auto; }

/* --- Search results --------------------------------------------------------- */

.result__head { display: flex; flex-wrap: wrap; align-items: baseline; gap: 6px 16px; }
.result__head .part { font-size: 1.375rem; }
.result__ask { display: grid; gap: 0 20px; grid-template-columns: repeat(auto-fit, minmax(min(100%, 200px), 1fr)); align-items: start; }
.result__ask .field--wide { grid-column: 1 / -1; }

.pager { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; padding: 14px 20px; border-top: 1px solid var(--rule-soft); font-size: 0.9375rem; color: var(--ink-soft); }
.pager a { font-weight: 600; }

.filters { display: flex; flex-wrap: wrap; align-items: flex-end; gap: 12px 16px; margin-bottom: 16px; }
.filters .field { margin: 0; }
.filters input[type="search"], .filters select { width: auto; min-width: 200px; }

.signin { max-width: 440px; margin: 8vh auto 0; }
.signin .panel { padding: 28px; }
.signin h1 { margin-bottom: 6px; }
.signin .lede { color: var(--ink-soft); margin-bottom: 20px; }
.signin input { max-width: none; }
.signin button { width: 100%; }
.signin .below { margin-top: 16px; font-size: 0.9375rem; }

.footer { max-width: 1160px; margin: 0 auto; padding: 0 var(--gutter) 32px; color: var(--ink-soft); font-size: 0.875rem; }

@media (max-width: 640px) {
  h1 { font-size: 1.625rem; }
  .bar__inner { column-gap: 12px; }
  .nav { order: 3; flex-basis: 100%; overflow-x: auto; flex-wrap: nowrap; margin: 0 calc(var(--gutter) * -1); padding: 0 calc(var(--gutter) - 12px); }
  .nav a { padding: 10px 12px 8px; white-space: nowrap; }
  .who { margin-left: auto; }
  .who .who__company { display: none; }
  .page { padding-top: 20px; }
  .panel { padding: 16px; }
  .panel--flush { padding: 0; }
  .nameplate { padding: 20px 14px 18px; }
  .nameplate input[type="search"] { font-size: 1.25rem; height: 54px; flex-basis: 100%; }
  .nameplate button { width: 100%; height: 50px; }
  th:first-child, td:first-child { padding-left: 16px; }
  th:last-child, td:last-child { padding-right: 16px; }
  .facts { grid-template-columns: 1fr; gap: 2px; }
  .facts dd { margin-bottom: 10px; }
}

@media (prefers-reduced-motion: no-preference) {
  button, .button, .nav a { transition: background-color 0.12s, border-color 0.12s, color 0.12s; }
}

@media print {
  .bar, .footer, .actions, .nameplate form { display: none; }
  body { background: #fff; }
  .panel { border: 0; padding: 0; }
}

.field .help ul { margin: 4px 0 0; padding-left: 18px; }

.stack > section > h2 { margin-bottom: 10px; }
.panel ul { margin: 0; padding-left: 20px; }
.callout + h3, .tablewrap + h3 { margin-top: 20px; }
.panel:not(.panel--flush) > .tablewrap { margin: 12px -20px 16px; border-top: 1px solid var(--rule-soft); border-bottom: 1px solid var(--rule-soft); }
.panel > .callout { margin-top: 16px; }
.panel h3 + p { margin-top: 4px; }

td .part, td a.part { white-space: nowrap; overflow-wrap: normal; }
.filters input[type="search"] { min-width: min(100%, 340px); }

/* AI part guide */
.tag { display: inline-block; padding: 2px 8px; border: 1px solid var(--rule); border-radius: var(--radius); background: var(--sunk); color: var(--ink-soft); font-size: 0.8125rem; font-weight: 600; letter-spacing: 0.02em; text-transform: uppercase; white-space: nowrap; }
.guide__what { display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 14px; margin-bottom: 6px; }
.guide__what .part { font-size: 1.375rem; }
.guide h3 { margin-top: 20px; }
.guide td:nth-child(2) { min-width: 240px; }
.guide__foot { margin-top: 16px; }
.guide__ask { margin: 12px 0 0; }
.guide__ask p { margin-top: 8px; }
.guide th:first-child, .guide td:first-child { width: 32%; }

@media (max-width: 640px) {
  /* Suggestions read as a short list on a phone, not a sideways-scrolling table. */
  .guide thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }
  .guide table, .guide tbody, .guide tr, .guide td { display: block; }
  .guide tr { padding: 12px 16px; }
  .guide tbody tr + tr { border-top: 1px solid var(--rule-soft); }
  .guide td, .guide tbody tr + tr td, .guide td:first-child, .guide td:last-child { width: auto; min-width: 0; padding: 0; border: 0; }
  .guide td + td { margin-top: 6px; }
  .guide td.right { margin-top: 10px; text-align: left; }
  .guide td .part { white-space: normal; overflow-wrap: anywhere; }
}