diff --git a/bookmarklet/original.js b/bookmarklet/original.js
index f9613b0..08899c5 100644
--- a/bookmarklet/original.js
+++ b/bookmarklet/original.js
@@ -12,7 +12,7 @@ $$('*').forEach((el) => (el.style = ''))
 
 const linkElm = createElement('link', {
   rel: 'stylesheet',
-  href: 'https://cdn.jsdelivr.net/npm/water.css@2/out/water.css'
+  href: 'https://cdn.jsdelivr.net/npm/water.css@2/out/light.css'
 })
 
 // Add water.css and responsive viewport (if necessary)
@@ -24,29 +24,36 @@ document.head.append(
   })
 )
 
-// theme switching logic
+// Theme switching icons
 const moonSVG = '<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-moon"><path d="M21 12.79A9 9 0 1 1 11.21 3 7 7 0 0 0 21 12.79z"></path></svg>'
 const sunSVG = '<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-sun"><circle cx="12" cy="12" r="5"></circle><line x1="12" y1="1" x2="12" y2="3"></line><line x1="12" y1="21" x2="12" y2="23"></line><line x1="4.22" y1="4.22" x2="5.64" y2="5.64"></line><line x1="18.36" y1="18.36" x2="19.78" y2="19.78"></line><line x1="1" y1="12" x2="3" y2="12"></line><line x1="21" y1="12" x2="23" y2="12"></line><line x1="4.22" y1="19.78" x2="5.64" y2="18.36"></line><line x1="18.36" y1="5.64" x2="19.78" y2="4.22"></line></svg>'
 
-const toggleBtn = createElement('div', {
+// Theme toggling logic
+const toggleBtn = createElement('button', {
   innerHTML: sunSVG,
-  style: 'position: fixed !important; top: 50px !important; right: 100px; cursor: pointer;'
+  ariaLabel: 'Switch theme',
+  style: `
+    position: fixed;
+    top: 50px;
+    right: 50px;
+    margin: 0;
+    padding: 10px;
+    line-height: 1;
+  `
 })
 
 let theme = 'light'
-
 const toggleTheme = () => {
-  if (theme === 'light' || theme === null) {
+  if (theme === 'light') {
     theme = 'dark'
     toggleBtn.innerHTML = moonSVG
     linkElm.href = 'https://cdn.jsdelivr.net/npm/water.css@2/out/dark.css'
   } else {
     theme = 'light'
-    linkElm.href = 'https://cdn.jsdelivr.net/npm/water.css@2/out/water.css'
+    linkElm.href = 'https://cdn.jsdelivr.net/npm/water.css@2/out/light.css'
     toggleBtn.innerHTML = sunSVG
   }
 }
 
-toggleBtn.onclick = toggleTheme
-
+toggleBtn.addEventListener('click', toggleTheme)
 document.body.append(toggleBtn)