:root{
  --dfm-bg:#fff; --dfm-bg-soft:#f9fafb;
  --dfm-text:#111827; --dfm-text-soft:#0f172a;
  --dfm-muted:#6b7280; --dfm-primary:#2563eb; --dfm-border:#e5e7eb;

  --dfm-control-h:46px; --dfm-radius:12px;

  --dfm-btn-height:50px; --dfm-btn-radius:14px; --dfm-btn-font:15px;

  --dfm-space-2:10px; --dfm-space-3:16px;

  --dfm-shadow-sm:0 4px 12px rgba(17,24,39,.25);
  --dfm-shadow-md:0 6px 16px rgba(17,24,39,.25);
  --dfm-shadow-lg:0 10px 30px rgba(0,0,0,.15);
  --dfm-shadow-primary:0 6px 18px rgba(37,99,235,.25);
}