frontend/src/index.css

@import "tailwindcss";

/*
 * Type system: IBM Plex Sans for UI and prose, IBM Plex Mono for model ids,
 * metrics, and spec readouts. The proportional/monospace contrast is the
 * app's typographic voice: prose explains, mono reports.
 */
@theme {
  --font-sans: "IBM Plex Sans", ui-sans-serif, system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", monospace;
}

@layer base {
  body {
    /* Warm off-white canvas; surfaces sit on it as pure white cards with
       hairline borders. Chroma is reserved for sentiment data. */
    background-color: #fbfbfa;
    color: #1e293b;
    -webkit-font-smoothing: antialiased;
  }

  ::selection {
    background-color: #fde68a;
  }
}