/* ══════ ALT THEME: CONTRAST (crisp black-on-white neutral) ══════
   Overrides the default greyscale palette from app.css when
   document.documentElement.dataset.theme === "contrast" (see theme.js).
   Fixed palette — does not react to prefers-color-scheme. */
:root[data-theme="contrast"] {
  --bg:#ffffff; --bg2:#eeeeee; --bg3:#f7f7f7; --border:#b0b0b0;
  --text:#000000; --text2:#444444; --text3:#7a7a7a;
  --accent:#000000; --accent2:#333333; --acc-text:#ffffff;
  --user-bg:#000000; --user-fg:#ffffff; --ai-bg:#eeeeee; --ai-fg:#000000;
  --input-bg:#ffffff; --remote:#0645ad;
  --scene-tint:rgba(0,0,0,.04); --scene-line:#999999;
}