:root {
  --bg: #f6f5f1;
  --card: #ffffff;
  --ink: #1a1a1a;
  --muted: #6b7280;
  --border: #d4d0c9;
  --accent: #b8860b;
  --accent-dark: #8b6508;
  --danger: #b91c1c;
  --success: #166534;
  --warning: #b45309;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.5;
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  background: var(--card);
  border-bottom: 1px solid var(--border);
}
header .brand {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}
header nav a {
  margin-left: 1rem;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.9rem;
}
header nav a:hover { color: var(--ink); }
header nav a.current { color: var(--ink); font-weight: 600; }

main {
  max-width: 1000px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

h1 { font-size: 1.5rem; margin-bottom: 0.25rem; }
h2 { font-size: 1.1rem; margin-top: 2rem; margin-bottom: 0.5rem; }
p.lede { color: var(--muted); margin-top: 0; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.25rem;
  margin-bottom: 1rem;
}

label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--muted);
  margin-bottom: 0.25rem;
}
input[type="text"], input[type="number"], input[type="date"], input[type="search"],
select, textarea {
  width: 100%;
  padding: 0.5rem 0.6rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.95rem;
  font-family: inherit;
  background: #fff;
}
textarea { min-height: 3rem; resize: vertical; }
input:focus, select:focus, textarea:focus {
  outline: 2px solid var(--accent);
  outline-offset: -1px;
  border-color: var(--accent);
}

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0.75rem; }
.grid-3 { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 0.75rem; }
.grid-4 { display: grid; grid-template-columns: 1fr 1fr 1fr 1fr; gap: 0.75rem; }

button, .btn {
  padding: 0.5rem 1rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #fff;
  color: var(--ink);
  font-size: 0.9rem;
  font-family: inherit;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
}
button.primary, .btn.primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent-dark);
}
button.primary:hover, .btn.primary:hover { background: var(--accent-dark); }
button.danger { color: var(--danger); }
button:disabled { opacity: 0.5; cursor: not-allowed; }

.line-row {
  display: grid;
  grid-template-columns: 3fr 1fr 0.8fr 1fr 1fr auto;
  gap: 0.5rem;
  align-items: end;
  padding: 0.5rem 0;
  border-bottom: 1px dashed var(--border);
}
.line-row:last-child { border-bottom: none; }

.totals {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.25rem 1rem;
  margin-top: 1rem;
  font-variant-numeric: tabular-nums;
}
.totals .k { color: var(--muted); text-align: right; }
.totals .v { text-align: right; font-weight: 600; }
.totals .total .k, .totals .total .v { font-size: 1.1rem; color: var(--ink); }

.hint { font-size: 0.85rem; color: var(--muted); }
.error { color: var(--danger); margin-top: 0.5rem; }
.success { color: var(--success); margin-top: 0.5rem; }
.badge {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  background: #eee;
  color: var(--muted);
}
.badge.ordered { background: #fef3c7; color: #92400e; }
.badge.received { background: #dbeafe; color: #1e40af; }
.badge.reconciled { background: #d1fae5; color: #065f46; }
.badge.key-date { background: #fde68a; color: #7c2d12; }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}
th, td {
  padding: 0.6rem 0.5rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
th { font-weight: 600; color: var(--muted); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.05em; }
tr:hover td { background: #faf9f5; }

.search-results {
  position: absolute;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 6px;
  max-height: 240px;
  overflow-y: auto;
  width: 100%;
  z-index: 10;
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}
.search-results .hit {
  padding: 0.4rem 0.6rem;
  cursor: pointer;
  font-size: 0.9rem;
}
.search-results .hit:hover, .search-results .hit.active { background: #f6f5f1; }
.search-results .hit small { color: var(--muted); }
.item-search { position: relative; }