/* The page's colour before the app's own styles arrive (render-blocking, so the first frame is never white):
   theme-init.js has already set html.dark / html.evening. Matches the body backdrop in src/styles/base.css. */
html { background: #ecf2f8; color-scheme: light; }
html.evening:not(.dark) { background: #1f2c34; }
html.dark { background: #0f1625; color-scheme: dark; }