/* ============================================================================ ProductLog marketing — dark mode ---------------------------------------------------------------------------- Loaded sitewide from base.html.twig right after homepage.css. The marketing pages do NOT set a `data-theme` attribute and ship no theme-toggle script, so the ONLY thing that can switch the palette is the OS preference. Everything here therefore lives inside a single `@media (prefers-color-scheme: dark)` block — it fires automatically when the visitor's system is in dark mode and is a no-op otherwise. Re-expression strategy: homepage.css (and the per-page sheets features-page.css / compare-page.css) define the marketing token set on a plain `:root` (--bg / --panel / --text / --brand / …). We simply re-declare those same custom properties with dark equivalents — every component that reads the tokens then recolours for free, so all 20 marketing pages change in dark mode from one file. CASCADE NOTE — why `html:root` and `html …` instead of plain `:root` / `.x`: the per-page sheets (features-page.css, compare-page.css) and a few inline `