freezmo/components/IceBackdrop.tsx
Martin Dvorak 67e2cefcfe Aero goes underwater with rising bubbles; floating cookie notice; Czech title
Frutiger Aero, closer to the mock:
- The scene is water now: sun shafts through a bright surface, caustic
  patches, reeds on the left, a city silhouette on the right, and ten soap
  bubbles that actually rise (own keyframes, varied sizes/speeds/sway; the
  spans are display:none outside aero so they cost nothing elsewhere, and
  they sit still under reduced motion).
- Pale blue glass at 0.8: still reads as glass, but dark navy text clears
  4.5:1 over the water. The phone tab bar mixes the sheet glass instead of
  the page — in aero the page *is* the water, which left its labels at 3.9:1.
- The aero page-level text (muted/subtle) is much darker for the same reason.
- The PWA status bar follows the new water blue (#2fa7e6).

The cookie notice is floating glass now (blurred backdrop, rim, shadow): as a
plain card it read as part of the page background instead of a notice.

Czech: "Tvoje mraznička" -> "Tvůj mrazák" (library title), test updated.

Contrast: 0 below-minimum findings and 0 axe violations across every screen,
all three themes. Version 0.2.1, SW -> freezmo-v55.
2026-10-13 05:46:53 +00:00

49 lines
2 KiB
TypeScript

"use client";
import { useEffect, useState } from "react";
/**
* The fixed ice scene behind every screen: a navy (or pale) base, four slow
* drifting glacier blobs, glossy ice orbs that rise slowly and fade at the
* edges, and a whisper of grain. Purely decorative — it never intercepts
* pointer events, only transform/opacity animate (each on its own composited
* layer), the rise stops under `prefers-reduced-motion`, and everything parks
* while the tab is hidden so a background tab costs no compositor work.
*/
export function IceBackdrop() {
const [hidden, setHidden] = useState(false);
useEffect(() => {
const apply = () => setHidden(document.hidden);
apply();
document.addEventListener("visibilitychange", apply);
return () => document.removeEventListener("visibilitychange", apply);
}, []);
return (
<div className={`ice-scene${hidden ? " ice-paused" : ""}`} aria-hidden>
<span className="ice-blob ice-blob-a" />
<span className="ice-blob ice-blob-b" />
<span className="ice-blob ice-blob-c" />
<span className="ice-blob ice-blob-d" />
<span className="ice-orb ice-orb-1" />
<span className="ice-orb ice-orb-2" />
<span className="ice-orb ice-orb-3" />
<span className="ice-orb ice-orb-4" />
<span className="ice-orb ice-orb-5" />
{/* Aero-only bubbles: display:none unless the aero theme is on, so they
cost nothing in the other themes (see .ice-bubble in globals.css). */}
<span className="ice-bubble ice-bubble-1" />
<span className="ice-bubble ice-bubble-2" />
<span className="ice-bubble ice-bubble-3" />
<span className="ice-bubble ice-bubble-4" />
<span className="ice-bubble ice-bubble-5" />
<span className="ice-bubble ice-bubble-6" />
<span className="ice-bubble ice-bubble-7" />
<span className="ice-bubble ice-bubble-8" />
<span className="ice-bubble ice-bubble-9" />
<span className="ice-bubble ice-bubble-10" />
<span className="ice-grain" />
</div>
);
}