first commit

src/components/layout/ScrollToTop.tsx

@@ -0,0 +1,32 @@
+import { useState, useEffect } from 'react'
+
+export default function ScrollToTop() {
+  const [isVisible, setIsVisible] = useState(false)
+
+  useEffect(() => {
+    const handleScroll = () => {
+      setIsVisible(window.scrollY > 200)
+    }
+    window.addEventListener('scroll', handleScroll)
+    return () => window.removeEventListener('scroll', handleScroll)
+  }, [])
+
+  const scrollToTop = () => {
+    window.scrollTo({
+      top: 0,
+      behavior: 'smooth',
+    })
+  }
+
+  return (
+    <button
+      onClick={scrollToTop}
+      className={`fixed bottom-4 right-4 w-10 h-10 bg-secondary hover:bg-secondary/80 text-white rounded shadow-lg flex items-center justify-center transition-all duration-300 z-50 ${
+        isVisible ? 'opacity-100 translate-y-0' : 'opacity-0 translate-y-4 pointer-events-none'
+      }`}
+      aria-label="Back to top"
+    >
+      <span className="fa fa-angle-up" />
+    </button>
+  )
+}