:root {
  --bg: #f4f6f8;
  --panel: #ffffff;
  --ink: #16202b;
  --ink-soft: #5c6b7a;
  --line: #dde4ea;
  --brand: #0b5f8a;
  --brand-dark: #084a6c;
  --ok: #1a7f4b;
  --ok-bg: #e6f4ec;
  --warn: #9a6100;
  --warn-bg: #fdf1dc;
  --err: #b3261e;
  --err-bg: #fdeceb;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(16, 32, 48, .06), 0 4px 12px rgba(16, 32, 48, .04);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 15px/1.5 "Segoe UI", system-ui, -apple-system, Roboto, Arial, sans-serif;
  -webkit-text-size-adjust: 100%;
}

/* ---------- top bar ---------- */
.topbar {
  display: flex; align-items: center; gap: 18px;
  background: var(--brand); color: #fff;
  padding: 0 18px; min-height: 56px;
  flex-wrap: wrap;
  position: sticky; top: 0; z-index: 20;
}
.logo { color: #fff; text-decoration: none; font-weight: 700; font-size: 18px; letter-spacing: -.2px; white-space: nowrap; }
.logo span { font-weight: 300; opacity: .85; }
.nav { display: flex; gap: 2px; flex: 1; flex-wrap: wrap; }
.nav a {
  color: #dceaf3; text-decoration: none; padding: 8px 12px;
  border-radius: 7px; font-size: 14px; white-space: nowrap;
}
.nav a:hover { background: rgba(255,255,255,.12); color: #fff; }
.nav a.active { background: rgba(255,255,255,.2); color: #fff; font-weight: 600; }
.me { display: flex; align-items: center; gap: 10px; font-size: 13px; color: #dceaf3; }
.me .role { background: rgba(255,255,255,.22); padding: 1px 6px; border-radius: 20px; font-size: 11px; font-weight: 600; }
.linkbtn { background: none; border: 0; color: #dceaf3; cursor: pointer; text-decoration: underline; font-size: 13px; padding: 0; font-family: inherit; }
.linkbtn:hover { color: #fff; }

main { max-width: 1100px; margin: 0 auto; padding: 22px 18px 60px; }
main.wide { max-width: 1500px; }

/* ---------- page furniture ---------- */
.pagehead { display: flex; justify-content: space-between; align-items: flex-end; gap: 16px; margin-bottom: 18px; flex-wrap: wrap; }
h1 { font-size: 22px; margin: 0; letter-spacing: -.3px; }
h2 { font-size: 15px; margin: 0 0 12px; letter-spacing: -.1px; }
.sub { margin: 4px 0 0; color: var(--ink-soft); font-size: 13px; }
.actions { display: flex; gap: 8px; flex-wrap: wrap; }

.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; margin-bottom: 16px; box-shadow: var(--shadow); }
.card.tight { padding: 0; overflow: hidden; }
.grid { display: grid; gap: 16px; }
.grid.two { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.grid.stats { grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); }

.stat { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; box-shadow: var(--shadow); }
.stat-value { font-size: 26px; font-weight: 650; letter-spacing: -.5px; }
.stat-label { font-size: 12px; color: var(--ink-soft); text-transform: uppercase; letter-spacing: .5px; margin-top: 2px; }
.stat-hint { font-size: 12px; color: var(--ink-soft); margin-top: 6px; }
.stat.warn .stat-value { color: var(--warn); }
.stat.err .stat-value { color: var(--err); }
.stat.ok .stat-value { color: var(--ok); }

/* ---------- tables ---------- */
.tablewrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: middle; white-space: nowrap; }
/* Not sticky: .tablewrap sets overflow-x, which also makes overflow-y a scroll
   container, and a sticky th inside it is offset over the first data row. */
th { font-size: 11.5px; text-transform: uppercase; letter-spacing: .5px; color: var(--ink-soft); background: #fafbfc; }
tbody tr:hover { background: #f7fafc; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
td.wrap { white-space: normal; min-width: 200px; }
tr.is-low td { background: #fffaf2; }
tr.is-low:hover td { background: #fff4e3; }

.mono { font-family: "Cascadia Mono", Consolas, monospace; font-size: 13px; }
.muted { color: var(--ink-soft); }
.small { font-size: 12.5px; }
.pos { color: var(--ok); font-weight: 600; }
.neg { color: var(--err); font-weight: 600; }
.strike { text-decoration: line-through; opacity: .55; }

.tag { display: inline-block; padding: 2px 8px; border-radius: 20px; font-size: 11.5px; font-weight: 600; background: #eef2f6; color: var(--ink-soft); }
.tag.b { background: #e7f0f6; color: var(--brand-dark); }
.tag.low { background: var(--warn-bg); color: var(--warn); }
.tag.exp { background: var(--err-bg); color: var(--err); }
.tag.ok { background: var(--ok-bg); color: var(--ok); }

/* ---------- forms ---------- */
.field { display: block; margin-bottom: 14px; }
.lbl { display: block; font-size: 12.5px; font-weight: 600; color: var(--ink-soft); margin-bottom: 5px; }
.hint { display: block; font-size: 12px; color: var(--ink-soft); margin-top: 4px; }
input, select, textarea {
  width: 100%; padding: 9px 11px; border: 1px solid var(--line); border-radius: 8px;
  font: inherit; background: #fff; color: var(--ink);
}
input:focus, select:focus, textarea:focus { outline: 2px solid rgba(11,95,138,.35); border-color: var(--brand); }
input[readonly] { background: #f3f5f7; color: var(--ink-soft); }
textarea { min-height: 90px; resize: vertical; font-family: inherit; }
.row { display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); }
.row.three { grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); }
fieldset { border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; margin: 0 0 16px; }
legend { font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: .6px; color: var(--ink-soft); padding: 0 6px; }

.btn {
  display: inline-block; background: var(--brand); color: #fff; border: 1px solid var(--brand);
  padding: 9px 16px; border-radius: 8px; font: inherit; font-weight: 600; font-size: 14px;
  cursor: pointer; text-decoration: none; text-align: center;
}
.btn:hover { background: var(--brand-dark); border-color: var(--brand-dark); }
.btn.ghost { background: #fff; color: var(--brand-dark); border-color: var(--line); }
.btn.ghost:hover { background: #f2f6f9; }
.btn.danger { background: #fff; color: var(--err); border-color: #f0c6c3; }
.btn.danger:hover { background: var(--err-bg); }
.btn.small { padding: 5px 10px; font-size: 12.5px; }
.btn.block { display: block; width: 100%; }
.btn[disabled] { opacity: .5; cursor: not-allowed; }

.filters { display: flex; gap: 10px; flex-wrap: wrap; align-items: flex-end; margin-bottom: 14px; }
.filters .field { margin: 0; min-width: 150px; flex: 0 1 auto; }
.filters .grow { flex: 1 1 260px; }

.flash { padding: 11px 15px; border-radius: 8px; margin-bottom: 16px; font-size: 14px; border: 1px solid; }
.flash.ok { background: var(--ok-bg); color: var(--ok); border-color: #bfe3ce; }
.flash.warn { background: var(--warn-bg); color: var(--warn); border-color: #f0dab0; }
.flash.error { background: var(--err-bg); color: var(--err); border-color: #f2c9c6; }
.empty { padding: 34px 18px; text-align: center; color: var(--ink-soft); font-size: 14px; }

.pager { display: flex; gap: 8px; align-items: center; justify-content: center; padding: 14px; flex-wrap: wrap; }

/* ---------- login ---------- */
body.bare { display: flex; align-items: center; justify-content: center; min-height: 100vh; background: var(--brand); padding: 20px; }
.loginbox { background: #fff; border-radius: 14px; padding: 30px; width: 100%; max-width: 380px; box-shadow: 0 12px 40px rgba(0,0,0,.2); }
.loginbox h1 { text-align: center; margin-bottom: 4px; }
.loginbox .sub { text-align: center; margin-bottom: 22px; }

/* ---------- stock buckets ---------- */
.buckets { display: grid; grid-template-columns: repeat(auto-fit, minmax(96px, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.bucket { background: #fff; padding: 12px 10px; text-align: center; }
.bucket .v { font-size: 20px; font-weight: 650; font-variant-numeric: tabular-nums; }
.bucket .k { font-size: 11px; text-transform: uppercase; letter-spacing: .5px; color: var(--ink-soft); margin-top: 2px; }
.bucket .sub2 { font-size: 11px; color: var(--ink-soft); margin-top: 3px; }
.bucket.dim { background: #fafbfc; }
.bucket.dim .v { color: #97a5b2; }

.kv { display: grid; grid-template-columns: minmax(120px, 170px) 1fr; gap: 8px 14px; font-size: 14px; }
.kv dt { color: var(--ink-soft); font-size: 13px; }
.kv dd { margin: 0; }

.calcline { background: #eef4f8; border: 1px solid #d3e3ee; color: var(--brand-dark); border-radius: 8px; padding: 11px 14px; font-size: 14px; font-weight: 600; margin-bottom: 14px; }

.steps { display: flex; gap: 8px; margin-bottom: 18px; flex-wrap: wrap; font-size: 13px; }
.steps span { padding: 5px 12px; border-radius: 20px; background: #e7ecf1; color: var(--ink-soft); }
.steps span.on { background: var(--brand); color: #fff; font-weight: 600; }

@media (max-width: 780px) {
  .topbar { padding: 8px 14px; }
  .nav { order: 3; width: 100%; }
  .nav a { padding: 7px 10px; }
  main { padding: 16px 12px 60px; }
  .kv { grid-template-columns: 1fr; gap: 2px 0; }
  .kv dd { margin-bottom: 10px; }
  input, select, textarea { padding: 11px; font-size: 16px; }
  .btn { padding: 11px 16px; }
}

@media print {
  .topbar, .actions, .filters { display: none; }
  body { background: #fff; }
  .card { box-shadow: none; border: 0; }
}