:root {
  --bg: #f5f6f4; --card: #ffffff; --ink: #1b1f23; --muted: #646b73; --line: #e1e4e0;
  --accent: #1f5f4a; --accent-ink: #ffffff; --soft: #eef4f0; --warn-bg: #fff5e6; --warn-ink: #7a4a00;
  --err: #b3261e; --err-bg: #fdf0ef; --ok: #1f6b3a; --ok-bg: #edf7f0; --bar: #cfe3d8;
  --radius: 12px; --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink);
  font: 16px/1.5 ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
a { color: var(--accent); }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 16px; }
.banner { background: var(--warn-bg); color: var(--warn-ink); text-align: center; font-size: 14px; padding: 6px 12px;
  border-bottom: 1px solid #f0dcb8; }
.top { background: var(--card); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 5; }
.top-in { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; padding-top: 10px; padding-bottom: 10px; }
.brand { font-weight: 700; color: var(--ink); text-decoration: none; letter-spacing: .2px; }
.brand span { color: var(--muted); font-weight: 500; font-size: 14px; }
nav { display: flex; gap: 4px; overflow-x: auto; -webkit-overflow-scrolling: touch; max-width: 100%; }
nav a { padding: 7px 12px; border-radius: 8px; color: var(--muted); text-decoration: none; font-weight: 600; font-size: 15px; white-space: nowrap; }
nav a:hover { background: var(--soft); color: var(--ink); }
nav a.on { background: var(--soft); color: var(--accent); }
main { padding-top: 20px; padding-bottom: 24px; }
footer { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap;
  color: var(--muted); font-size: 14px; padding-bottom: 32px; border-top: 1px solid var(--line); padding-top: 14px; }
footer form { margin: 0; }
h1 { font-size: 26px; line-height: 1.25; margin: 4px 0 8px; }
h2 { font-size: 18px; margin: 0 0 8px; }
.lead { color: var(--muted); font-size: 17px; margin: 0 0 16px; max-width: 760px; }
.small { font-size: 14px; }
.muted { color: var(--muted); }
.strong { font-weight: 600; }
.empty { color: var(--muted); font-style: italic; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; margin: 0 0 14px; }
.card.soft { background: var(--soft); }
.card.error { border-color: #efc4c0; background: var(--err-bg); color: #5c1511; }
.card.error ul { margin: 6px 0 0; padding-left: 20px; }
.card.okcard { border-color: #bfe0ca; background: var(--ok-bg); }
.error-text { color: var(--err); }
.flash { background: var(--ok-bg); border: 1px solid #bfe0ca; color: var(--ok); border-radius: 10px; padding: 10px 14px; margin: 0 0 14px; }
.hero { padding: 8px 0 6px; }
.hero h1 { font-size: 30px; max-width: 820px; }
.steps { list-style: none; padding: 0; margin: 8px 0 14px; display: grid; gap: 14px; grid-template-columns: 1fr; }
.steps .card { margin: 0; display: flex; flex-direction: column; }
.steps p { color: var(--muted); margin: 0 0 14px; flex: 1; }
.step-n { width: 32px; height: 32px; border-radius: 50%; background: var(--accent); color: var(--accent-ink);
  display: grid; place-items: center; font-weight: 700; margin-bottom: 10px; }
.grid2 { display: grid; gap: 14px; grid-template-columns: 1fr; }
.grid2 > .card { margin: 0; }
.grid2 + .card, .grid2 { margin-bottom: 14px; }
.facts { display: grid; gap: 4px; margin: 0 0 12px; }
.facts div { display: grid; grid-template-columns: 120px 1fr; gap: 8px; }
.facts dt { color: var(--muted); font-size: 14px; }
.facts dd { margin: 0; font-size: 15px; overflow-wrap: anywhere; }
ul.small { padding-left: 18px; margin: 4px 0; }
/* forms */
label { display: grid; gap: 4px; font-size: 14px; font-weight: 600; color: var(--ink); }
input, select { width: 100%; font: inherit; font-weight: 400; padding: 9px 10px; border-radius: 8px; border: 1px solid #cfd4cf;
  background: #fff; color: var(--ink); min-height: 42px; }
input:focus, select:focus { outline: 2px solid var(--accent); outline-offset: 1px; border-color: var(--accent); }
input[type=checkbox] { width: 18px; height: 18px; min-height: 0; margin: 0; accent-color: var(--accent); }
input[type=file] { padding: 7px; }
button, .btn { display: inline-flex; align-items: center; justify-content: center; font: inherit; font-weight: 600;
  border-radius: 8px; padding: 9px 16px; cursor: pointer; border: 1px solid transparent; min-height: 42px; text-decoration: none; white-space: nowrap; }
.primary { background: var(--accent); color: var(--accent-ink); }
.primary:hover { background: #184c3b; }
.secondary { background: #fff; color: var(--ink); border-color: #cfd4cf; }
.secondary:hover { background: var(--soft); }
button.link { background: none; border: none; color: var(--accent); padding: 6px 0; min-height: 0; font-weight: 600; }
.small-btn { padding: 6px 12px; min-height: 36px; font-size: 14px; }
.stack { display: grid; gap: 12px; }
.stack > .card { margin: 0; }
.row-gap { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.end { justify-content: flex-end; }
.head-row { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 12px; }
.head-row h1 { margin: 0; }
form.inline { display: grid; gap: 4px; }
form.inline select { width: auto; min-width: 140px; }
.grid-fields { display: grid; gap: 12px; grid-template-columns: 1fr; }
.comps { border: 1px solid var(--line); border-radius: 10px; padding: 8px 12px 10px; margin: 0 0 10px;
  display: flex; flex-wrap: wrap; gap: 6px 16px; }
.comps[hidden] { display: none; }
.comps legend { font-size: 13px; font-weight: 700; color: var(--muted); padding: 0 4px; text-transform: uppercase; letter-spacing: .5px; }
label.check { display: inline-flex; align-items: center; gap: 8px; font-weight: 500; font-size: 15px; min-height: 36px; }
/* BOM lines: stacked cards on mobile, a table-like grid on desktop */
.line { display: grid; gap: 8px; grid-template-columns: 1fr 1fr; padding: 10px 0; border-top: 1px solid var(--line); }
.line .m { grid-column: 1 / -1; }
.line .lbl { font-size: 12px; color: var(--muted); font-weight: 600; }
.line-head { display: none; }
.actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 12px; }
/* result */
.result { border-color: #bfe0ca; box-shadow: 0 1px 0 #bfe0ca inset; }
.result-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; flex-wrap: wrap; margin-bottom: 6px; }
.label { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .6px; font-weight: 700; }
.sku-big { font-family: var(--mono); font-size: 28px; font-weight: 700; letter-spacing: 1px; overflow-wrap: anywhere; }
.ok-pill { background: var(--ok-bg); color: var(--ok); border: 1px solid #bfe0ca; border-radius: 999px; padding: 4px 12px; font-weight: 700; font-size: 14px; }
/* tables */
.scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; margin: 0 -4px; padding: 0 4px; }
table { width: 100%; border-collapse: collapse; font-size: 15px; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-size: 13px; color: var(--muted); font-weight: 700; white-space: nowrap; background: #fafbfa; }
td.r, th.r { text-align: right; white-space: nowrap; }
table.bom td:first-child { min-width: 130px; }
.share { display: inline-flex; align-items: center; gap: 8px; justify-content: flex-end; }
.share .track { display: inline-block; width: 64px; height: 8px; background: #edf0ed; border-radius: 4px; overflow: hidden; }
.share .bar { display: block; height: 100%; background: #5f9c84; max-width: 100%; }
.show-sm { display: none; }
/* SKU list */
.export { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; background: var(--soft); }
.export h2 { margin-bottom: 2px; }
.export p { margin: 0; }
.sku-head { display: flex; gap: 12px; align-items: flex-start; flex-wrap: wrap; margin-bottom: 8px; }
.sku-head .grow { flex: 1; min-width: 180px; }
label.check.big { min-height: 0; padding-top: 4px; }
.sku-code { font-family: var(--mono); font-weight: 700; font-size: 18px; text-decoration: none; letter-spacing: .5px; }
.sku-name { font-weight: 600; }
.search { display: flex; gap: 8px; }
.search input { flex: 1; font-family: var(--mono); font-size: 18px; text-transform: uppercase; }

@media (max-width: 599px) {
  .top { position: static; }
  nav { flex-wrap: wrap; gap: 2px; }
  nav a { padding: 6px 8px; font-size: 14px; }
  h1, .hero h1 { font-size: 24px; }
  .lead { font-size: 16px; }
  table { font-size: 14px; }
  th, td { padding: 7px 6px; }
  th, th.r { white-space: normal; }
  th .muted { display: none; }
  table.bom td:first-child { min-width: 0; }
  .hide-sm { display: none; }
  .show-sm { display: block; }
  .share .track { display: none; }
  .sku-big { font-size: 24px; }
}
@media (min-width: 720px) {
  .steps { grid-template-columns: repeat(3, 1fr); }
  .grid2 { grid-template-columns: 1fr 1fr; }
  .grid-fields { grid-template-columns: repeat(3, 1fr); }
  .grid-fields .wide { grid-column: span 3; }
  .grid-fields .wide:first-child { grid-column: span 3; }
}
@media (min-width: 1000px) {
  .grid-fields { grid-template-columns: repeat(4, 1fr); }
  .grid-fields .wide { grid-column: span 2; }
  .line, .line-head { grid-template-columns: 2.4fr 1fr 0.9fr 0.9fr 0.8fr 1fr; padding: 6px 0; border-top: none; gap: 8px; }
  .line .m { grid-column: auto; }
  .line .lbl { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
  .line-head { display: grid; font-size: 13px; color: var(--muted); font-weight: 700; border-bottom: 1px solid var(--line); padding-bottom: 6px; }
}

/* K-69 material-code request */
.code-request { display: flex; flex-wrap: wrap; align-items: end; gap: 10px 14px; margin: 14px 0 6px; padding: 14px; border: 1px solid var(--line, #e3e3e3); border-radius: 10px; }
.code-request label { flex: 1 1 220px; }
.code-request .error-text { flex-basis: 100%; margin: 0; }
.code-request .small { flex-basis: 100%; }
.code-state .sku-code { font-size: inherit; }