:root {
  --bg: #f6f7f5; --card: #fff; --ink: #1d2320; --muted: #5d6762; --line: #d9ddd9;
  --brand: #1f5f4a; --brand-ink: #fff; --accent: #e8f1ed; --warn: #9a5b00; --warn-bg: #fff4e0;
  --bad: #a32020; --bad-bg: #fdecec; --good: #1d6b3a; --good-bg: #e6f4ea; --info-bg: #eaf1fb;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
a { color: var(--brand); }
h1 { font-size: 1.6rem; margin: .2rem 0 1rem; }
h2 { font-size: 1.2rem; margin: 1.6rem 0 .6rem; }
h3 { font-size: 1rem; margin: 1rem 0 .4rem; }
code { font-size: .9em; background: var(--accent); padding: 0 .25em; border-radius: 3px; }
main { max-width: 1150px; margin: 0 auto; padding: 1rem 16px 4rem; }
.muted { color: var(--muted); }
.small { font-size: .85rem; }
.pre { white-space: pre-wrap; }
.nowrap { white-space: nowrap; }
.num { text-align: right; font-variant-numeric: tabular-nums; }

/* header */
.top { background: var(--brand); color: var(--brand-ink); display: flex; flex-wrap: wrap; align-items: center; gap: .5rem 1.5rem; padding: .6rem 16px; }
.top a, .top .link { color: var(--brand-ink); text-decoration: none; }
.brand { font-weight: 700; font-size: 1.1rem; }
.brand span { font-weight: 400; opacity: .85; }
.top nav { display: flex; flex-wrap: wrap; align-items: center; gap: .3rem 1rem; flex: 1; }
.top nav a:hover, .top .link:hover { text-decoration: underline; }
.top .nav-new { background: #fff; color: var(--brand); padding: .25rem .7rem; border-radius: 4px; font-weight: 600; }
.top .who { margin-left: auto; opacity: .9; }
.count { background: #ffd166; color: #222; border-radius: 10px; padding: 0 .45em; font-size: .8rem; }
.banner { background: #fff3b0; text-align: center; padding: .3rem 16px; font-size: .9rem; margin: 0; }

/* messages */
.done, .error, .note { padding: .6rem .9rem; border-radius: 6px; margin: 0 0 1rem; }
.done { background: var(--good-bg); color: var(--good); }
.error { background: var(--bad-bg); color: var(--bad); }
.note { background: var(--info-bg); }

/* forms */
label { display: flex; flex-direction: column; gap: .2rem; font-size: .9rem; color: var(--muted); }
input, select, textarea { font: inherit; color: var(--ink); padding: .45rem .55rem; border: 1px solid #b9c0bb; border-radius: 5px; background: #fff; min-width: 0; }
input[type=checkbox], input[type=radio] { width: 1.1rem; height: 1.1rem; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--brand); outline-offset: 0; }
textarea { width: 100%; }
label.check { flex-direction: row; align-items: center; gap: .5rem; color: var(--ink); }
label.wide, label.grow { flex: 1; }
.row { display: flex; flex-wrap: wrap; gap: .8rem; align-items: flex-end; margin: .6rem 0; }
.row > label { min-width: 12rem; }
.row > label.check { min-width: 0; }
fieldset { border: 1px solid var(--line); border-radius: 8px; background: var(--card); padding: .8rem 1rem 1rem; margin: 0 0 1rem; display: flex; flex-direction: column; gap: .8rem; }
fieldset.radios { flex-direction: row; gap: 1rem; padding: .4rem .8rem; border: 0; background: none; }
legend { font-weight: 600; padding: 0 .3rem; }
.narrow { max-width: 36rem; display: flex; flex-direction: column; gap: .8rem; }
input.short { width: 7.5rem; }
input.num { text-align: right; }
button, .button { font: inherit; display: inline-block; cursor: pointer; border-radius: 5px; padding: .5rem 1rem; border: 1px solid transparent; text-decoration: none; line-height: 1.3; }
.primary { background: var(--brand); color: #fff; }
.primary:hover { background: #174a39; }
.secondary { background: #fff; color: var(--brand); border-color: var(--brand); }
.secondary:hover { background: var(--accent); }
.danger { background: #fff; color: var(--bad); border-color: var(--bad); }
.danger:hover { background: var(--bad-bg); }
button.small, .button.small { padding: .2rem .6rem; font-size: .85rem; }
button.link { background: none; border: 0; padding: 0; color: var(--brand); text-decoration: underline; }
form.inline { display: inline; }
.actions { display: flex; flex-wrap: wrap; gap: .8rem; align-items: center; margin: 1rem 0; }
details > summary { cursor: pointer; color: var(--brand); margin: .5rem 0; }

/* layout bits */
.head-row { display: flex; flex-wrap: wrap; gap: 1rem; justify-content: space-between; align-items: flex-start; }
.buttons { display: flex; gap: .6rem; flex-wrap: wrap; }
.ref { margin: 0; display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; color: var(--muted); }
.po { font-variant-numeric: tabular-nums; letter-spacing: .02em; white-space: nowrap; }
.po.big { font-size: 1.5rem; font-weight: 700; color: var(--ink); }
section { margin-bottom: 1.2rem; }
.step { background: var(--card); border: 2px solid var(--brand); border-radius: 8px; padding: .4rem 1rem 1rem; }
.step h2 { margin-top: .6rem; }
.decide { display: flex; flex-wrap: wrap; gap: .6rem; align-items: flex-end; }
.decide label { flex-basis: 100%; }
.facts { display: grid; grid-template-columns: repeat(auto-fill, minmax(14rem, 1fr)); gap: .6rem 1.2rem; margin: 0 0 1rem; background: var(--card); border: 1px solid var(--line); border-radius: 8px; padding: .8rem 1rem; }
.facts dt { font-size: .8rem; color: var(--muted); }
.facts dd { margin: 0; }
.why { background: var(--card); border: 1px solid var(--line); border-radius: 8px; padding: .2rem 1rem; margin-bottom: 1rem; }
.cards { display: flex; flex-wrap: wrap; gap: .8rem; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 8px; padding: .7rem 1rem; text-decoration: none; color: var(--ink); flex: 1 1 14rem; }
.card b { font-size: 1.4rem; display: block; }
.card.warn { border-color: var(--warn); background: var(--warn-bg); }
.login { max-width: 24rem; margin: 3rem auto; background: var(--card); padding: 1.5rem; border-radius: 10px; border: 1px solid var(--line); display: flex; flex-direction: column; }
.login form { display: flex; flex-direction: column; gap: .9rem; }
ul.plain, ol.history, ul.docs { padding-left: 0; list-style: none; margin: .4rem 0; }
ul.docs li, ul.plain li { padding: .45rem 0; border-bottom: 1px solid var(--line); display: flex; flex-wrap: wrap; gap: .3rem .8rem; align-items: baseline; }
ol.history li { padding: .35rem 0; border-bottom: 1px solid var(--line); }
ol.history .when { color: var(--muted); font-size: .85rem; margin-right: .3rem; }
.quote { display: block; margin: .2rem 0 0 0; padding-left: .6rem; border-left: 3px solid var(--line); }
.filters { display: flex; flex-wrap: wrap; gap: .6rem; align-items: flex-end; background: var(--card); border: 1px solid var(--line); border-radius: 8px; padding: .7rem; margin-bottom: .8rem; }
.filters label.grow { min-width: 14rem; }

/* tables */
.scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
table { border-collapse: collapse; width: 100%; background: var(--card); }
th, td { padding: .45rem .55rem; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
thead th { font-size: .8rem; color: var(--muted); font-weight: 600; background: #fafbfa; }
th.num, td.num { text-align: right; }
tfoot th { font-weight: 600; }
tr.dead td { color: var(--muted); text-decoration: line-through; }
table.lines input { width: 100%; }
table.lines input.short { width: 5rem; }
table.lines td:first-child { min-width: 14rem; }
table.settings input { width: 100%; min-width: 6rem; }

/* badges */
.st, .inv, .tag { display: inline-block; font-size: .78rem; padding: .05rem .5rem; border-radius: 10px; background: #eef0ee; color: var(--ink); white-space: nowrap; }
.st-submitted { background: var(--warn-bg); color: var(--warn); }
.st-returned { background: #fde9d9; color: #8a3b00; }
.st-approved { background: var(--good-bg); color: var(--good); }
.st-rejected, .st-cancelled { background: var(--bad-bg); color: var(--bad); }
.st-closed { background: #e4e7ea; color: #333; }
.inv-matched { background: var(--good-bg); color: var(--good); }
.inv-over { background: var(--bad-bg); color: var(--bad); }
.inv-part { background: var(--warn-bg); color: var(--warn); }

/* the printable order */
.print-page { background: #fff; }
.print-page > p { max-width: 50rem; margin: 1rem auto; padding: 0 16px; }
.po-doc { max-width: 50rem; margin: 0 auto 3rem; padding: 0 16px; }
.po-doc header { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 1rem; border-bottom: 2px solid var(--ink); padding-bottom: 1rem; }
.po-doc h1 { margin: 0; font-size: 1.4rem; }
.po-number { font-size: 2rem; font-weight: 700; margin: .2rem 0; letter-spacing: .03em; }
.po-doc .from { text-align: right; }
.po-doc .from p { margin: .2rem 0; }
.po-parties { display: grid; grid-template-columns: repeat(auto-fit, minmax(13rem, 1fr)); gap: 1rem; margin: 1rem 0; }
.po-parties h3 { font-size: .8rem; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); margin: 0 0 .3rem; }
.po-parties p { margin: 0 0 .2rem; }
.po-doc table { margin: 1rem 0; }
.po-ask { border: 2px solid var(--ink); padding: .6rem .8rem; }

@media print {
  .no-print, .top, .banner { display: none !important; }
  body { background: #fff; font-size: 11pt; }
  .po-doc { max-width: none; padding: 0; }
  a { color: inherit; text-decoration: none; }
}
@media (max-width: 640px) {
  h1 { font-size: 1.35rem; }
  .top { gap: .4rem; }
  .top nav { flex-basis: 100%; gap: .3rem .9rem; }
  .top .who { margin-left: 0; }
  th, td { padding: .4rem .35rem; }
  .row > label { min-width: 100%; }
  .po-doc .from { text-align: left; }
}