feat: initial commit — Webflow to Next.js conversion

QuantumLab template converted to Next.js 16 + React 19 + TypeScript:
- 8 page routes (home, about, blog, contact, careers, team-members, coming-soon, 404)
- Dynamic routes for blog posts, career positions, and team members
- GSAP animations (marquee, counters, button hovers)
- IntersectionObserver-based scroll reveal (blur-to-clear transitions)
- Dark mode with next-themes
- React Hook Form + Zod contact form
- Framer Motion page transitions
- Lottie animations via lottie-web

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

components/ThemeToggle.tsx

@@ -0,0 +1,43 @@
+"use client"
+
+import { useTheme } from "next-themes"
+import { useEffect, useState } from "react"
+
+export default function ThemeToggle() {
+  const { theme, setTheme } = useTheme()
+  const [mounted, setMounted] = useState(false)
+
+  useEffect(() => setMounted(true), [])
+
+  if (!mounted) {
+    return <button className="theme-toggle" aria-label="Toggle theme"><span style={{ width: 18, height: 18 }} /></button>
+  }
+
+  const isDark = theme === "dark"
+
+  return (
+    <button
+      className="theme-toggle"
+      onClick={() => setTheme(isDark ? "light" : "dark")}
+      aria-label={isDark ? "Switch to light mode" : "Switch to dark mode"}
+    >
+      {isDark ? (
+        <svg xmlns="http://www.w3.org/2000/svg" width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round">
+          <circle cx="12" cy="12" r="5" />
+          <line x1="12" y1="1" x2="12" y2="3" />
+          <line x1="12" y1="21" x2="12" y2="23" />
+          <line x1="4.22" y1="4.22" x2="5.64" y2="5.64" />
+          <line x1="18.36" y1="18.36" x2="19.78" y2="19.78" />
+          <line x1="1" y1="12" x2="3" y2="12" />
+          <line x1="21" y1="12" x2="23" y2="12" />
+          <line x1="4.22" y1="19.78" x2="5.64" y2="18.36" />
+          <line x1="18.36" y1="5.64" x2="19.78" y2="4.22" />
+        </svg>
+      ) : (
+        <svg xmlns="http://www.w3.org/2000/svg" width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round">
+          <path d="M21 12.79A9 9 0 1 1 11.21 3 7 7 0 0 0 21 12.79z" />
+        </svg>
+      )}
+    </button>
+  )
+}