Add hero name fill animation

SVG text background of "Jonathan" in outline that slowly fills in on
page load. Uses CSS fill-opacity animation (0 → 1 over 2s, 0.3s delay)
so the stroke appears immediately and the fill bleeds in gradually.

Light mode: zinc-200/300. Dark mode: zinc-800. Both stay recessive so
the effect is atmospheric, not distracting.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

components/Hero.tsx

@@ -2,7 +2,28 @@ import Link from 'next/link'
 
 export default function Hero() {
   return (
-    <section className="mx-auto flex min-h-[72vh] max-w-5xl flex-col items-center justify-center px-6 py-32 text-center">
+    <section className="relative overflow-hidden mx-auto flex min-h-[72vh] max-w-5xl flex-col items-center justify-center px-6 py-32 text-center">
+
+      {/* Background name — outline fills in on load */}
+      <svg
+        aria-hidden="true"
+        className="pointer-events-none absolute inset-0 h-full w-full"
+        preserveAspectRatio="xMidYMid meet"
+      >
+        <text
+          x="50%"
+          y="55%"
+          textAnchor="middle"
+          dominantBaseline="middle"
+          fontFamily="var(--font-geist-sans), sans-serif"
+          fontSize="22vw"
+          fontWeight="700"
+          strokeWidth="1"
+          className="name-outline-fill"
+        >
+          Jonathan
+        </text>
+      </svg>
 
       {/* Eyebrow label */}
       <div className="mb-10 flex items-center gap-4">