:root{
  --bg:#faf9f5; --surface-1:#f3f1ea; --surface-2:#ffffff;
  --text-primary:#1f1e1c; --text-secondary:#5f5e5a; --text-muted:#8a8881;
  --border:#e6e3da; --border-strong:#d3d0c6;
  --accent:#185FA5; --accent-bg:#E6F1FB; --accent-text:#0C447C; --accent-border:#85B7EB;
  --success-bg:#E1F5EE; --success-text:#0F6E56;
  --warning-bg:#FAEEDA; --warning-text:#854F0B;
  --danger-bg:#FCEBEB; --danger-text:#A32D2D;
  --c-lift:#1D9E75; --c-weight:#D85A30; --c-thrust:#378ADD; --c-drag:#BA7517;
  --radius:8px;
  --font-interface:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --font-reading:var(--font-interface);
  --font:var(--font-interface);
  --type-caption:.75rem;
  --type-help:.8125rem;
  --type-label:.875rem;
  --type-body:1rem;
  --type-body-lg:1.125rem;
  --type-nav-group:.75rem;
  --type-nav-item:.9375rem;
  --type-button:.875rem;
  --type-table:.875rem;
  --type-card-title:1.25rem;
  --type-section-title:1.625rem;
  --type-page-title:clamp(2.125rem,3vw,3rem);
  --form-control-height:46px;
  --form-control-height:2.875rem;
  --form-control-font-size:15px;
  --form-control-font-size:.9375rem;
  --form-label-font-size:13px;
  --form-label-font-size:.8125rem;
  --form-help-font-size:11.5px;
  --form-help-font-size:.75rem;
  --form-action-height:44px;
  --form-action-height:2.75rem;
  --form-check-size:20px;
  --form-check-size:1.25rem;
}

[data-interface-font="sans"]{--font-interface:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif}
[data-interface-font="serif"]{--font-interface:Georgia,"Iowan Old Style","Times New Roman",serif}
[data-interface-font="legible"]{--font-interface:Verdana,"Atkinson Hyperlegible","Segoe UI",Arial,sans-serif}
[data-interface-font="mono"]{--font-interface:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
[data-reading-font="sans"]{--font-reading:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif}
[data-reading-font="serif"]{--font-reading:Georgia,"Iowan Old Style","Times New Roman",serif}
[data-reading-font="legible"]{--font-reading:Verdana,"Atkinson Hyperlegible","Segoe UI",Arial,sans-serif}
[data-reading-font="mono"]{--font-reading:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
[data-text-contrast="strong"]{--text-secondary:color-mix(in srgb,var(--text-primary) 82%,var(--bg));--text-muted:color-mix(in srgb,var(--text-primary) 68%,var(--bg))}
[data-text-contrast="soft"]{--text-secondary:color-mix(in srgb,var(--text-primary) 60%,var(--bg));--text-muted:color-mix(in srgb,var(--text-primary) 44%,var(--bg))}