<script>
(function () {
try {
var stored = localStorage.getItem("rb-theme") || "auto";
var dark = window.matchMedia("(prefers-color-scheme: dark)").matches;
var resolved = stored === "auto" ? (dark ? "dark" : "light") : stored;
document.documentElement.classList.add("rb-" + resolved);
} catch (e) {}
})();
</script>