fix: root /downloads button fix, subdomain footer fix

src/components/SubdomainFooter.tsx

@@ -1,31 +1,19 @@
-/**
- * Minimal footer for product subdomains — "made with <3 by Mike Freno"
- * linking back to the root domain.
- *
- * Placed in the shared subdomain layout (app.tsx) so every subdomain page
- * gets it automatically. Uses `buildMainSiteUrl()` so the cross-domain link
- * resolves correctly in both dev (path-based localhost) and prod (host-based
- * freno.me).
- */
 import { A } from "@solidjs/router";
 import { buildMainSiteUrl } from "~/lib/site-context";
 
 export default function SubdomainFooter() {
   return (
-    <footer class="border-surface0 border-t py-8">
-      <div class="flex items-center justify-between text-sm">
-        <span class="text-text/60">
-          made with <span class="text-red-400">&lt;3</span> by{" "}
-          <A
-            href={buildMainSiteUrl()}
-            class="text-text/80 hover:text-text underline underline-offset-4 transition-colors"
-          >
-            Mike Freno
-          </A>
-        </span>
+    <footer class="border-surface0 bg-surface0 relative z-10 border-t py-8">
+      <div class="relative flex items-center text-sm">
+        <A
+          href={buildMainSiteUrl()}
+          class="text-text/60 hover:text-text/80 mx-auto text-center underline underline-offset-4 transition-colors"
+        >
+          made with <span class="text-red-400">&lt;3</span>
+        </A>
         <A
           href={buildMainSiteUrl("/downloads")}
-          class="text-text/80 hover:text-text underline underline-offset-4 transition-colors"
+          class="text-text/80 hover:text-text absolute right-4 underline underline-offset-4 transition-colors"
         >
           see more products
         </A>

src/components/ui/Button.tsx

@@ -177,7 +177,12 @@ export default function Button(props: ButtonProps) {
     if (isDisabledOrLoading) {
       return { bg: "var(--color-base)", text: "#ffffff" };
     }
-    return adjustForContrast(local.color || "var(--color-blue)");
+    // When no explicit color is given, fall back to the theme blue
+    // (a dark color whose contrast with white is already fine).  Only
+    // pass a hex string to adjustForContrast — CSS variable values can't
+    // be parsed numerically.
+    if (!local.color) return { bg: "var(--color-blue)", text: "#ffffff" };
+    return adjustForContrast(local.color);
   };
 
   const sizeClasses = () => {