/* Shop-floor high-contrast theme (loaded always; activated via html[data-theme=contrast]) */
html[data-theme="contrast"] {
  --bg: #0a0a0a;
  --panel: #141414;
  --ink: #f5f5f5;
  --muted: #c8c8c8;
  --accent: #3dff9a;
  --accent-2: #ffd24a;
  --line: #3a3a3a;
  --sidebar: #000000;
  --sidebar-text: #f0f0f0;
}
html[data-theme="contrast"] body {
  background: #0a0a0a;
  color: var(--ink);
}
html[data-theme="contrast"] .top-nav,
html[data-theme="contrast"] .card,
html[data-theme="contrast"] .stat,
html[data-theme="contrast"] .dash-shift-card,
html[data-theme="contrast"] .form-control,
html[data-theme="contrast"] .form-select {
  background: #141414 !important;
  color: #f5f5f5 !important;
  border-color: #555 !important;
}
html[data-theme="contrast"] .btn {
  border-color: #3dff9a;
  color: #0a0a0a;
  background: #3dff9a;
  font-weight: 700;
}
html[data-theme="contrast"] .btn-outline,
html[data-theme="contrast"] .btn-secondary {
  background: transparent;
  color: #3dff9a;
}
html[data-theme="contrast"] .table th {
  background: #1f1f1f !important;
  color: #fff !important;
}
html[data-theme="contrast"] .table td {
  border-color: #444 !important;
}
html[data-theme="contrast"] a { color: #7dffb5; }
html[data-theme="contrast"] .voucher-help,
html[data-theme="contrast"] .backup-reminder-banner {
  background: #1a1a00;
  border-color: #ffd24a;
  color: #fff3c4;
}