/* Neon Glass (dark) — glass panels on deep space-blue, blue→violet→cyan signal triad.
   Copied-with-provenance from sp-theme-system neon-glass (handoff H-neon-glass-theme-handoff.md,
   2026-07-08) and translated to the assistant's extended CVT slot set (same slots as theme-light.css).
   Canonical values live in sp-theme-system/neon_theme/theme/themes/neon-glass/theme.css — do not diverge
   here; re-pull on provider update. System fonts only (no web fonts). The canonical backdrop.png lives
   with the source theme; this surface renders flat to match the engine neon skin. */
:root[data-cvt-theme="neon-glass"] {
  --cvt-color-surface: #0b0f22;
  --cvt-color-surface-deep: #060814;
  --cvt-color-surface-muted: #0d1430;
  --cvt-color-surface-strong: #141d3a;
  --cvt-color-surface-overlay: rgba(6, 8, 20, 0.72);
  --cvt-color-text: #f2f5ff;
  --cvt-color-text-muted: #94a3c8;
  --cvt-color-accent: #4d8dff;
  --cvt-color-accent-strong: #8b5cf6;
  --cvt-color-candle-glow: #22d3ee;
  --cvt-color-table-header: #131a30;
  --cvt-color-tag: rgba(77, 141, 255, 0.16);
  --cvt-color-tag-text: #9fc2ff;
  --cvt-color-status-active: #22d3ee;
  --cvt-color-status-embedded: #a78bfa;
  --cvt-color-status-local: #7db2ff;
  --cvt-color-node: #141d3a;
  --cvt-color-node-stroke: #4d8dff;
  --cvt-color-edge: #7f8cc0;
  --cvt-color-selected: #22d3ee;
  --cvt-color-focus-ring: #22d3ee;
  --cvt-color-phase-problem: #ff6b8b;
  --cvt-color-phase-core: #8b5cf6;
  --cvt-color-phase-doc: #22d3ee;
  --cvt-color-layer-wow: #8b5cf6;
  --cvt-color-layer-cm: #7db2ff;
  --cvt-color-layer-tt: #4d8dff;
  --cvt-color-layer-cp: #22d3ee;
  --cvt-color-layer-aa: #a78bfa;
  --cvt-color-layer-as: #9fb2e8;
  --cvt-color-border-hairline: rgba(255, 255, 255, 0.14);
  --cvt-color-shadow: rgba(2, 4, 12, 0.55);
  --cvt-image-backdrop: url("/backdrops/neon.png");
  --cvt-image-backdrop-overlay: linear-gradient(160deg, rgba(11, 15, 34, 0.5), rgba(6, 8, 20, 0.72));
  --cvt-image-backdrop-opacity: 0.6;
  --cvt-font-family: "Segoe UI Variable Text", "Segoe UI", system-ui, -apple-system, sans-serif;
  --cvt-font-serif: "Segoe UI Variable Display", "Segoe UI", system-ui, sans-serif;
  --cvt-font-mono: "Cascadia Code", "Cascadia Mono", ui-monospace, Consolas, monospace;
  --cvt-shape-radius: 18px;
  --cvt-shape-shadow: 0 0 0 1px rgba(77, 141, 255, 0.20), 0 24px 60px rgba(2, 4, 12, 0.55), inset 0 0 40px rgba(77, 141, 255, 0.05);
}