/* ═══════════════════════════════════════════════════════════════════
   NEPTUNE — per-plane identity presentation.
   UNTRACKED, lives only in this plane's tree (convention: base.html.twig
   links design-system/plane.css on every plane; a plane without one 404s
   harmlessly). Loaded last, so overrides here beat every shared sheet.
   ═══════════════════════════════════════════════════════════════════ */

/* The shared backdrop layer renders at 0.35 — a WHITE-ward wash (the light
   page gradient composites through it), built for bright ambient images.
   Any translucency greys a dark image, so Neptune runs the layer at full
   opacity (Martin 2026-08-07: "a white overlay on a dark colour will
   always look bad — remove it, or scrim with black, never white").
   If a readability scrim is ever needed here, darken the IMAGE bytes or
   layer a black gradient — never re-add translucency toward the page. */
body::before {
    opacity: 1;
}