Kestrove website: home page with downloads, support and privacy pages

Co-Authored-By: Claude Opus 5.5 <[email protected]>

site.js

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+// Points the main button at this visitor's platform. The download cards in index.html are the only list of
+// links: release a platform there and this picks it up. Without JavaScript the page still works.
+const NAMES = { ios: "iPhone", mac: "Mac", android: "Android", windows: "Windows", linux: "Linux" };
+
+function detect() {
+  const ua = navigator.userAgent;
+  if (/iPhone|iPad|iPod/.test(ua) || (/Macintosh/.test(ua) && navigator.maxTouchPoints > 1)) return "ios";
+  if (/Android/.test(ua)) return "android";
+  if (/Macintosh/.test(ua)) return "mac";
+  if (/Windows/.test(ua)) return "windows";
+  if (/Linux|X11/.test(ua)) return "linux";
+  return null;
+}
+
+const os = detect();
+const card = os && document.querySelector(`.card[data-os="${os}"]`);
+if (card) {
+  card.classList.add("yours");
+  const cta = document.getElementById("hero-cta");
+  const note = document.getElementById("hero-note");
+  const link = card.querySelector("a.btn");
+  if (card.classList.contains("soon")) {
+    note.textContent = `Kestrove for ${NAMES[os]} is coming soon.`;
+  } else if (link) {
+    cta.href = link.href;
+    cta.textContent = link.dataset.label;
+  }
+}