:root {
  --navy: #37424a;
  --blue-grey: #8497b0;
  --accent: #2f5597;
  --bg: #f4f6f8;
  --card: #ffffff;
  --border: #d9dee3;
  --danger: #c0392b;
  --good: #2e7d32;
  --text: #22282e;
  --muted: #6b7580;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}
header.topbar {
  background: var(--navy);
  color: #fff;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 4px rgba(0,0,0,0.15);
}
header.topbar .brand {
  font-size: 13px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  opacity: 0.8;
}
header.topbar h1 {
  font-size: 20px;
  margin: 2px 0 0;
  font-weight: 600;
}
header.topbar nav a {
  color: #fff;
  text-decoration: none;
  margin-left: 18px;
  font-size: 14px;
  opacity: 0.85;
}
header.topbar nav a:hover { opacity: 1; text-decoration: underline; }
header.topbar .user-badge {
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.35);
  border-radius: 6px;
  padding: 6px 14px;
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
}
main {
  max-width: 1200px;
  margin: 24px auto;
  padding: 0 20px 60px;
}
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px 22px;
  margin-bottom: 20px;
  box-shadow: 0 1px 2px rgba(0,0,0,0.03);
}
.card h2 {
  margin-top: 0;
  font-size: 16px;
  color: var(--navy);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.grid { display: grid; gap: 16px; }
.grid.cols-2 { grid-template-columns: 1fr 1fr; }
.grid.cols-3 { grid-template-columns: 1fr 1fr 1fr; }
.grid.cols-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 800px) {
  .grid.cols-2, .grid.cols-3, .grid.cols-4 { grid-template-columns: 1fr; }
}
label {
  display: block;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 4px;
  font-weight: 600;
}
input, select, textarea {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 14px;
  font-family: inherit;
  background: #fff;
}
input:disabled, select:disabled { background: #f0f2f4; color: #888; }
.field { margin-bottom: 12px; }
.field-row { display: flex; gap: 16px; flex-wrap: wrap; align-items: flex-end; }
.field-row .field { flex: 1 1 200px; margin-bottom: 0; }
.field-row .btn-row { margin: 0; }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 16px;
  border-radius: 7px;
  border: 1px solid var(--border);
  background: #fff;
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  text-decoration: none;
}
.btn:hover { background: #f0f2f4; }
.btn.primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn.primary:hover { background: #244577; }
.btn.danger { background: #fff; color: var(--danger); border-color: var(--danger); }
.btn.danger:hover { background: #fdecea; }
.btn.small { padding: 5px 10px; font-size: 12px; }
.btn-row { display: flex; gap: 10px; flex-wrap: wrap; margin: 14px 0; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
table th, table td { padding: 7px 8px; border-bottom: 1px solid var(--border); text-align: left; }
table th { color: var(--muted); text-transform: uppercase; font-size: 11px; letter-spacing: 0.03em; }
table tbody tr:hover { background: #f7f9fa; }

/* Scrollable table with a frozen (sticky) header row - used where a table
   can grow long, e.g. PO Tracking, so the column headers stay visible. */
.tbl-scroll { overflow: auto; max-height: 65vh; border: 1px solid var(--border); border-radius: 8px; }
.tbl-scroll table { margin: 0; }
.tbl-scroll thead th {
  position: sticky;
  top: 0;
  background: #eef1f4;
  box-shadow: inset 0 -1px 0 var(--border);
  z-index: 1;
}

/* Change-password modal, opened from the top nav on any page. */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(20, 24, 28, 0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  padding: 20px;
}
.modal-overlay.hidden { display: none; }
.modal-box {
  background: var(--card);
  border-radius: 10px;
  padding: 26px 28px;
  width: 100%;
  max-width: 380px;
  position: relative;
  box-shadow: 0 12px 32px rgba(0,0,0,0.25);
}
.modal-box h2 {
  margin-top: 0;
  font-size: 16px;
  color: var(--navy);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.modal-close {
  position: absolute;
  top: 10px;
  right: 12px;
  border: none;
  background: none;
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
  color: var(--muted);
  padding: 4px;
}
.modal-close:hover { color: var(--text); }
.right { text-align: right; }
.center { text-align: center; }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.pill {
  display: inline-block;
  padding: 2px 9px;
  border-radius: 20px;
  background: #eef1f4;
  color: var(--navy);
  font-size: 11px;
  font-weight: 600;
}
.dash-tiles { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 24px; }
@media (max-width: 900px) { .dash-tiles { grid-template-columns: repeat(2, 1fr); } }
.tile {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px;
  text-align: center;
  text-decoration: none;
  color: var(--text);
  transition: 0.15s;
}
.tile:hover { border-color: var(--accent); box-shadow: 0 2px 8px rgba(0,0,0,0.06); }
.tile .num { font-size: 28px; font-weight: 700; color: var(--accent); }
.tile .label { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.04em; margin-top: 4px; }
.menu-tiles { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
@media (max-width: 900px) { .menu-tiles { grid-template-columns: repeat(2, 1fr); } }
.menu-tile {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--navy);
  color: #fff;
  border-radius: 12px;
  padding: 30px 12px;
  text-decoration: none;
  font-weight: 600;
  font-size: 14px;
  text-align: center;
  min-height: 110px;
}
.menu-tile:hover { background: var(--accent); }
.menu-tile .icon { font-size: 26px; }
.error-box {
  background: #fdecea;
  border: 1px solid #f5c6cb;
  color: var(--danger);
  padding: 10px 14px;
  border-radius: 7px;
  margin-bottom: 14px;
  font-size: 13px;
}
.info-box {
  background: #eaf3ea;
  border: 1px solid #c8e0c8;
  color: var(--good);
  padding: 10px 14px;
  border-radius: 7px;
  margin-bottom: 14px;
  font-size: 13px;
}
.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}
.login-card {
  background: #fff;
  border-radius: 12px;
  padding: 40px 36px;
  width: 340px;
  box-shadow: 0 6px 24px rgba(0,0,0,0.08);
  text-align: center;
}
.login-card h1 { font-size: 18px; color: var(--navy); margin-bottom: 4px; }
.login-card p.sub { color: var(--muted); font-size: 13px; margin-bottom: 20px; }
.hidden { display: none !important; }
.line-table input, .line-table select { padding: 6px 8px; font-size: 13px; }
.line-table td { vertical-align: middle; }
.line-info { font-size: 11px; color: #8497b0; font-style: italic; margin-top: 2px; }
.col-toggle-hidden { display: none; }
.footer-note {
  text-align: center;
  color: var(--muted);
  font-size: 11px;
  margin-top: 40px;
}