:root{
/* base */
--ink:#0c0a08;           /* near-black warm ink — dark slide background */
--ink-soft:#1a1714;      /* body ink on cream */
--cream:#faf8f4;         /* light background */
--cream-text:#f5f1ea;    /* text on dark */
--cream-dim:#efe9df;     /* secondary text on dark */
--taupe:#9a8f7e;         /* warm greige accent — eyebrows, sources, de-emphasis */
--taupe-light:#b3ab9d;   /* lighter taupe, labels on cream */
--taupe-card:#beb6a9;    /* taupe panel fill (edition cards) */
--gray-eyebrow:#98958f;  /* eyebrow on dark */
/* semantic */
--surface-dark:var(--ink);
--surface-light:var(--cream);
--surface-panel:var(--taupe-card);
--text-primary:var(--ink-soft);
--text-primary-inverse:var(--cream-text);
--text-secondary:var(--taupe);
--text-secondary-inverse:var(--gray-eyebrow);
--text-accent:var(--taupe);
--hairline:rgba(12,10,8,.18);
--hairline-inverse:rgba(245,241,234,.22);
--hairline-taupe:rgba(154,143,126,.45);
}