:root {
    color-scheme: dark;
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: #0f1220;
    color: #f4f6ff;
}

* { box-sizing: border-box; }
html, body { min-height: 100%; }
body { margin: 0; background: radial-gradient(circle at top, #202747 0, #111523 45%, #0b0e18 100%); }
button, input { font: inherit; }
button { cursor: pointer; }
code { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
[hidden] { display: none !important; }