:root {
    /* Superseded by assets/tokens.css, which declares these same four names
       from the ink scale. Kept only because home.html still links this file
       first; the values below are the light theme's, matching tokens.css.
       Dark theme: --black #000000, and the three whites at .90 / .40 / .20. */
    --black: rgba(0, 0, 0, 0.05);
    --white-90: rgba(0, 0, 0, 0.90);
    --white-40: rgba(0, 0, 0, 0.42);
    --white-20: rgba(0, 0, 0, 0.30);
}