:root{
/* base palette — named as in the brand sampling */
--trh-char:#161311; /* primary dark; the shou sugi ban black */
--trh-ink:#141210; /* headline ink on light */
--trh-bone:#FDFCFA; /* primary light — warm white */
--trh-bronze:#C8A878; /* the accent — brass hardware, rules, COLLECTION lettering */
--trh-bronze-deep:#8A6F45; /* darker bronze — links, small labels on light */
--trh-limewash:#ECEAE4; /* support — backgrounds, packaging interiors */
--trh-smoke:#8F8378; /* support — secondary text on Char; weathered timber */
--trh-umber:#5C554D; /* body text on light */
--trh-parchment:#F7F5F0; /* caption bars, inset panels */
--trh-linen:#E5E2DA; /* page backdrop behind the sheet */
--trh-ivory:#F4F1EC; /* light text on Char */
/* semantic aliases */
--surface-page:var(--trh-linen);
--surface-sheet:var(--trh-bone);
--surface-card:#FFFFFF;
--surface-inset:var(--trh-parchment);
--surface-dark:var(--trh-char);
--text-heading:var(--trh-ink);
--text-body:var(--trh-umber);
--text-accent:var(--trh-bronze);
--text-label:var(--trh-bronze-deep);
--text-link:var(--trh-bronze-deep);
--text-on-dark:var(--trh-ivory);
--text-muted-on-dark:var(--trh-smoke);
--border-subtle:rgba(20,18,16,.08);
--border-default:rgba(20,18,16,.12);
--border-strong:rgba(20,18,16,.15);
--border-accent:var(--trh-bronze);
--border-on-dark:rgba(200,168,120,.5);
--shadow-sheet:0 2px 24px rgba(20,18,16,.12);
}