use lightningcss to minify instead

_includes/layouts/header.njk

@@ -1,3 +1,5 @@
+{% set css %} {% include "base.css" %} {% endset %}
+
         <meta charset="UTF-8">
         <title>{{ title or metadata.title }} • synth download!</title>
         <link rel="canonical" href="https://synth.download/">
@@ -11,6 +13,7 @@
         <meta name="viewport" content="width=device-width, initial-scale=1.0">
         <meta property="og:url" content="https://synth.download/">
         <link rel="stylesheet" href="/pagefind/pagefind-ui.css">
+        <style>{{ css | cssmin | safe }}</style>
         <script src="/pagefind/pagefind-ui.js"></script>
         <script src="/scripts/alt-popup.js"></script>
         <script src="/scripts/button.js"></script>