Add teaser image to blog page headers

src/routes/blog/[slug]/+page.svelte

@@ -1,6 +1,8 @@
 <script lang="ts">
+    import { formatDateRelative } from "$lib";
   import Box from "../../../components/atoms/Box.svelte";
   import Error from "../../../components/molecules/Error.svelte";
+  import Thumbnail from "../../../components/molecules/Thumbnail.svelte";
   import BlogPostContent from "../../../components/organisms/BlogPostContent.svelte";
   import type { PageData } from "./$types";
 
@@ -8,13 +10,34 @@ import Error from "../../../components/molecules/Error.svelte";
 </script>
 
 {#if data.post}
-  <Box>
   {@const post = data.post}
   {@const author = data.post.attributes.author.data?.attributes}
+  {@const teaserImage = data.post.attributes.teaserImage.data?.attributes}
+  {@const collection = data.post.attributes.collection.data?.attributes}
 
+  <div class="blog-entry-head">
+    <Box>
+      <div class="head-text">
         <h1>{post.attributes.title}</h1>
         <h3>by {author?.name}</h3>
-
+        {#if collection}
+          <h4>in <a href={`/blog/collection/${collection.slug}`}>{collection?.name}</a></h4>
+        {/if}
+        <span>{formatDateRelative(post.attributes.publishedAt)}</span>
+      </div>
+      {#if post.attributes.teaserImage.data}
+        <div class="head-thumbnail">
+          <Thumbnail
+            imageData={{
+              altText: teaserImage.alternativeText,
+              formats: Object.values(teaserImage.formats),
+            }}
+          />
+        </div>
+      {/if}
+    </Box>
+  </div>
+  <Box>
     {#each post.attributes.content as contentEntry}
       <BlogPostContent content={contentEntry} />
     {/each}
@@ -26,3 +49,33 @@ import Error from "../../../components/molecules/Error.svelte";
 {#if data.error}
   <Error error={data.error} />
 {/if}
+
+<style lang="scss">
+  .blog-entry-head {
+    position: relative;
+    margin: 0;
+    margin-bottom: 1em;
+    background: rgba(0, 0, 0, 0.6);
+    border-radius: 10px;
+
+    .head-text {
+      width: 100%;
+      z-index: 100;
+      padding: 1em;
+      h1 {
+        margin-top: 0;
+      }
+      &* {
+        text-align: center;
+      }
+    }
+    .head-thumbnail {
+      position: absolute;
+      top: 0;
+      left: 0;
+      width: 100%;
+      height: 100%;
+      z-index: -100;
+    }
+  }
+</style>