SSG fixes

.github/workflows/Deploy.yml

@@ -12,6 +12,8 @@ jobs:
     permissions: write-all
     steps:
       - uses: actions/checkout@v4
+        with:
+          ref: ${{ github.event.pull_request.head.sha || github.sha }}
 
       - name: Set preview path for PRs
         run: echo 'PRID=${{ env.PREVIEWS_PREFIX}}${{ github.event.number}}' >> $GITHUB_ENV
@@ -23,6 +25,7 @@ jobs:
           SITE_FOLDER: "./"
           BASE_URL_PREFIX: BioTutorials
           PREVIEW: ${{ env.PRID }}
+          JULIA_PRE: 'import Pkg; Pkg.setprotocol!(protocol="https")'
 
       - name: Comment PR preview URL
         uses: thollander/actions-comment-pull-request@v2

_css/style.css

@@ -461,6 +461,67 @@ img {
   font-size: 14px;
 }
 
+/* ==================================================================
+   Series Cards (from utils.jl hfun_list_series)
+   ================================================================== */
+
+.series-grid {
+  display: grid;
+  grid-template-columns: repeat(auto-fill, minmax(14rem, 1fr));
+  gap: 1.25rem;
+  margin: 1.5rem 0;
+}
+
+.series-card {
+  border: 1px solid var(--color-border);
+  border-top: 3px solid var(--color-brand);
+  border-radius: 6px;
+  padding: 1.25rem 1.25rem 1rem;
+  display: flex;
+  flex-direction: column;
+  transition: box-shadow 0.15s ease;
+}
+
+.series-card:hover {
+  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
+}
+
+.series-card h2 {
+  margin: 0 0 0.5rem;
+  padding: 0;
+  border: none;
+  font-size: 1.05rem;
+}
+
+.series-card h2 a {
+  color: var(--color-text);
+  font-weight: 600;
+}
+
+.series-card h2 a:hover {
+  color: var(--color-brand);
+  text-decoration: none;
+}
+
+.series-card .description {
+  margin: 0 0 0.75rem;
+  font-size: 0.875rem;
+  color: var(--color-text-light);
+  line-height: 1.6;
+  flex-grow: 1;
+}
+
+.series-card .series-count {
+  display: inline-block;
+  font-size: 0.75rem;
+  font-weight: 600;
+  color: var(--color-brand);
+  background-color: var(--color-bg-soft);
+  border-radius: 4px;
+  padding: 0.15rem 0.5rem;
+  align-self: flex-start;
+}
+
 /* ==================================================================
    Footer
    ================================================================== */

_layout/header.html

@@ -1,7 +1,7 @@
 <header class="site-header">
   <div class="header-content">
     <div class="header-left">
-      <a href="https://biojulia.dev/BioTutorials" class="logo-link">
+      <a href="/" class="logo-link">
         <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 136.48101 51.472999" height="32" aria-label="BioJulia">
           <g id="bubble-helix">
             <circle cx="5.9792" cy="20.3" r="5.9792" fill="#945bb0"/>