fix: view transitions

app/globals.css

@@ -195,7 +195,7 @@
   }
 }
 
-/* View Transitions */
+/* View Transitions - uses tw-animate-css's `enter` and `exit` keyframes */
 @layer base {
   @media (prefers-reduced-motion: reduce) {
     ::view-transition-group(*),
@@ -205,33 +205,31 @@
     }
   }
 
+  ::view-transition-group(*) {
+    animation-duration: 250ms;
+    animation-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
+  }
+  ::view-transition-old(*) {
+    --tw-exit-opacity: 0;
+    animation: 150ms ease-in both exit;
+  }
+  ::view-transition-new(*) {
+    --tw-enter-opacity: 0;
+    animation: 200ms ease-out both enter;
+  }
+
+  /* Main content: fade + slide */
   main {
     view-transition-name: main-content;
   }
-
   ::view-transition-old(main-content) {
-    animation: fade-out 120ms ease-out;
+    --tw-exit-opacity: 0;
+    --tw-exit-translate-y: -8px;
+    animation: 150ms ease-in forwards exit;
   }
-
   ::view-transition-new(main-content) {
-    animation: fade-in 120ms ease-in 40ms;
-  }
-
-  @keyframes fade-out {
-    from {
-      opacity: 1;
-    }
-    to {
-      opacity: 0;
-    }
-  }
-
-  @keyframes fade-in {
-    from {
-      opacity: 0;
-    }
-    to {
-      opacity: 1;
-    }
+    --tw-enter-opacity: 0;
+    --tw-enter-translate-y: 12px;
+    animation: 200ms ease-out forwards enter;
   }
 }

app/layout.tsx

@@ -1,3 +1,4 @@
+import { ViewTransition } from "react";
 import { env } from "@/lib/env";
 import { JsonLd } from "react-schemaorg";
 import Providers from "@/components/providers";
@@ -64,7 +65,9 @@ const RootLayout = ({ children }: Readonly<{ children: React.ReactNode }>) => {
         <Providers>
           <Header />
           <div className="mx-auto mt-4 w-full max-w-4xl px-5">
-            <main>{children}</main>
+            <main>
+              <ViewTransition>{children}</ViewTransition>
+            </main>
           </div>
           <Footer />
 

app/notes/[slug]/page.tsx

@@ -147,7 +147,10 @@ const Page = async ({ params }: { params: Promise<{ slug: string }> }) => {
         </div>
       </div>
 
-      <h1 className="my-5 text-4xl font-semibold tracking-tight sm:text-3xl">
+      <h1
+        className="my-5 text-3xl font-semibold tracking-tight"
+        style={{ viewTransitionName: `note-title-${frontmatter!.slug}` }}
+      >
         <Link
           href={`/${POSTS_DIR}/${frontmatter!.slug}`}
           dangerouslySetInnerHTML={{ __html: frontmatter!.htmlTitle || frontmatter!.title }}

app/notes/page.tsx

@@ -2,6 +2,7 @@ import { env } from "@/lib/env";
 import { cacheLife } from "next/cache";
 import { EyeIcon, MessagesSquareIcon } from "lucide-react";
 import Link from "@/components/link";
+import PageTitle from "@/components/layout/page-title";
 import { getFrontMatter, POSTS_DIR, type FrontMatter } from "@/lib/posts";
 import { createMetadata } from "@/lib/metadata";
 import { formatDate, formatDateISO } from "@/lib/date";
@@ -97,7 +98,7 @@ const PostsList = async () => {
   Object.entries(postsByYear).forEach(([year, posts]) => {
     sections.push(
       <section className="my-8 first-of-type:mt-0 last-of-type:mb-0" key={year}>
-        <h2 id={year} className="mt-0 mb-4 text-4xl font-semibold tracking-tight sm:text-3xl">
+        <h2 id={year} className="mt-0 mb-4 text-2xl font-semibold tracking-tight">
           {year}
         </h2>
         <ul className="space-y-4">
@@ -115,6 +116,7 @@ const PostsList = async () => {
                   prefetch={false}
                   dangerouslySetInnerHTML={{ __html: htmlTitle || title }}
                   className="underline-offset-4 hover:underline"
+                  style={{ viewTransitionName: `note-title-${slug}` }}
                 />
 
                 <PostStats slug={slug} views={views} comments={comments} />
@@ -131,7 +133,12 @@ const PostsList = async () => {
 };
 
 const Page = async () => {
-  return <PostsList />;
+  return (
+    <>
+      <PageTitle canonical="/notes">Notes</PageTitle>
+      <PostsList />
+    </>
+  );
 };
 
 export default Page;

components/layout/page-title.tsx

@@ -10,13 +10,10 @@ const PageTitle = ({
   canonical: string;
 }) => {
   return (
-    <h1
-      className={cn("mt-0 mb-6 text-left text-4xl font-semibold tracking-tight lowercase sm:text-3xl", className)}
-      {...rest}
-    >
+    <h1 className={cn("mt-0 mb-6 text-left text-3xl font-semibold tracking-tight lowercase", className)} {...rest}>
       <Link
         href={canonical}
-        className="before:text-muted-foreground no-underline before:-mr-1 before:tracking-wider before:content-['\002E\002F']"
+        className="before:text-muted-foreground no-underline before:mr-[-3px] before:tracking-wider before:content-['\002E\002F']"
       >
         {children}
       </Link>