:root{
  /* ---------- Brand fonts ---------- */
  /* Headings use a bold sans-serif (system stack) for a modern, tech-forward feel, cohesive with the
     nav/buttons. Heading elements have no explicit weight, so they render at the browser-default bold (700). */
  --font-heading: 'Segoe UI', system-ui, -apple-system, Roboto, sans-serif;
  --font-body: 'Segoe UI', system-ui, -apple-system, Roboto, sans-serif;

  /* ---------- Standard theme ---------- */
  --std-navy:#1A3A5C;
  --std-teal:#3ABFA0;
  --std-blue:#4A90D9;
  --std-bg-start:#DFFAF4;
  --std-bg-end:#C8DFF8;
  --std-border:#8CB9D0;

  /* ---------- Enterprise (platinum) theme ---------- */
  --ent-text:#FFFFFF;
  --ent-graphite:#3D4250;
  --ent-graphite-alt:#5A6072;
  --ent-border-1:#F4F5F7;
  --ent-border-2:#C4C8D0;
  --ent-border-3:#6B7280;
  --ent-border-4:#E8EAED;
  --ent-border-5:#9AA0AC;

  /* ---------- Neutrals / layout ---------- */
  --bg:#F7F7F8;
  --card-bg:#FFFFFF;
  --text:#2B2B2E;
  --text-muted:#6B6B70;
  --border:#E2E2E5;
  --tip-bg:#FFF8E1;
  --tip-border:#FDB740;
  --warn-bg:#FCE4E4;
  --warn-border:#E57373;
  --sidebar-width:270px;
  --max-width:1120px;
}