Fix post ordering (distinct pubDates) and align nav control heights

src/content/posts/hello-world.md

@@ -1,7 +1,7 @@
 ---
 title: "Hello, World — About This Blog"
 description: "What this blog is for: technical writing, self-hosting experience, and a record of what I build and learn."
-pubDate: 2026-09-06
+pubDate: 2026-09-05
 category: notes
 tags: [intro]
 ---

src/content/posts/how-i-host-this-blog.md

@@ -1,7 +1,7 @@
 ---
 title: "How I Host This Blog: Astro, Gitea Actions, and Self-Hosted CI/CD"
 description: "A walkthrough of the end-to-end pipeline that builds and serves this site — git-as-CMS, a self-hosted runner on my unRaid server, and Cloudflare in front."
-pubDate: 2026-09-06
+pubDate: 2026-09-04
 category: case-studies
 tags: [astro, gitea, ci-cd, self-hosting, docker, cloudflare]
 ---

src/styles/global.css

@@ -119,6 +119,7 @@ body {
   border-radius: var(--radius);
   padding: 0.25rem 0.6rem;
   font-size: 0.85rem;
+  line-height: 1.35;
   cursor: pointer;
   font-family: var(--font-sans);
 }
@@ -130,7 +131,7 @@ body {
   border-radius: var(--radius);
   padding: 0.25rem 0.6rem;
   font-size: 0.95rem;
-  line-height: 1;
+  line-height: 1.35;
   cursor: pointer;
   font-family: var(--font-sans);
 }
@@ -138,11 +139,12 @@ body {
 .lang-switch {
   color: var(--muted);
   text-decoration: none;
-  font-size: 0.92rem;
+  font-size: 0.85rem;
   font-weight: 500;
+  line-height: 1.35;
   border: 1px solid var(--border);
   border-radius: var(--radius);
-  padding: 0.1rem 0.55rem;
+  padding: 0.25rem 0.55rem;
 }
 .lang-switch:hover { color: var(--brand); border-color: var(--brand); }