:root{
/* --- Brand core (exact values from ACERO Media Kit v1.0, p.04) --- */
--acero-amber:#E88C00;
--acero-steel-deep:#1E2E38;
--acero-iron-grey:#3D4A4F;
--acero-cream:#F5F4F0;
--acero-white:#FFFFFF;

/* --- Amber ramp (brand amber is 500; ends derived for state + tint only) --- */
--amber-700:#A65F00;
--amber-600:#C77800;
--amber-500:#E88C00;
--amber-400:#F0A22E;
--amber-200:#F6D6A3;
--amber-050:#FCF3E4;

/* --- Steel ramp (900 = Steel Deep, 600 = Iron Grey, 050 = Cream) --- */
--steel-950:#131F27;
--steel-900:#1E2E38;
--steel-800:#243541;
--steel-700:#2E3E48;
--steel-600:#3D4A4F;
--steel-500:#56656B;
--steel-400:#7E888C;
--steel-300:#A9B0B0;
--steel-200:#CFD2CD;
--steel-100:#E6E5E0;
--steel-050:#F5F4F0;

/* --- Signal (only red appears in the brand kit, as the "PLEASE DON'T" marker) --- */
--signal-danger:#B3402F;
--signal-caution:#E88C00;
--signal-ok:#4E7A5B;

/* --- Semantic: text --- */
--text-strong:var(--steel-900);
--text-body:var(--steel-600);
--text-muted:var(--steel-500);
--text-accent:var(--acero-amber);
--text-inverse:var(--acero-white);
--text-inverse-body:#C6CDD1;
--text-inverse-muted:#93A0A6;

/* --- Semantic: surface --- */
--surface-page:var(--acero-cream);
--surface-card:var(--acero-white);
--surface-subtle:var(--steel-100);
--surface-inverse:var(--steel-900);
--surface-inverse-alt:var(--steel-700);
--surface-inverse-deep:var(--steel-950);
--surface-accent:var(--acero-amber);
--surface-accent-tint:var(--amber-050);

/* --- Semantic: border --- */
--border-hairline:#DEDCD6;
--border-strong:var(--steel-900);
--border-accent:var(--acero-amber);
--border-inverse:rgba(255,255,255,.16);
--border-inverse-strong:rgba(255,255,255,.34);

/* --- Semantic: interactive --- */
--accent:var(--acero-amber);
--accent-hover:var(--amber-600);
--accent-press:var(--amber-700);
--accent-on:var(--steel-950);
--focus-ring:var(--acero-amber);

/* --- Scrims used over machine photography --- */
--scrim-steel:linear-gradient(90deg,rgba(19,31,39,.92) 0%,rgba(19,31,39,.72) 45%,rgba(19,31,39,0) 85%);/* @kind color */
--scrim-steel-bottom:linear-gradient(180deg,rgba(19,31,39,0) 0%,rgba(19,31,39,.85) 100%);/* @kind color */
}