test: floating text selection toolbar

components/text-selection-toolbar.tsx

@@ -710,12 +710,47 @@ function MorePopover({
 function FloatingToolbar({
   position,
   actions,
+  isMobile,
 }: {
   position: Position;
   actions: ToolbarAction[];
+  isMobile: boolean;
 }) {
-  // Calculate position — center above the selection, clamp to viewport
-  const toolbarWidth = actions.length * 44 + 8; // approximate
+  if (isMobile) {
+    // Mobile: fixed bottom bar
+    return createPortal(
+      <div
+        className="fixed z-80 bottom-0 inset-x-0 border-t border-white/10 bg-black shadow-2xl px-3 py-2.5 pb-[max(0.75rem,env(safe-area-inset-bottom))] animate-in fade-in-0 slide-in-from-bottom-4 dark:bg-[#1a1a1a] dark:border-white/15"
+        onMouseDown={(e) => e.preventDefault()}
+      >
+        <div className="flex items-center justify-around gap-1">
+          {actions.map((action) => (
+            <button
+              key={action.key}
+              onClick={(e) => {
+                e.preventDefault();
+                e.stopPropagation();
+                action.onClick();
+              }}
+              onMouseDown={(e) => e.preventDefault()}
+              className={cn(
+                "flex flex-col items-center gap-1 px-3 py-2 rounded-lg text-xs font-medium transition-colors min-w-14",
+                action.className ??
+                  "text-white/70 active:bg-white/10 active:text-white",
+              )}
+            >
+              {action.icon}
+              <span>{action.label}</span>
+            </button>
+          ))}
+        </div>
+      </div>,
+      document.body,
+    );
+  }
+
+  // Desktop: floating above the selection
+  const toolbarWidth = actions.length * 44 + 8;
   const left = Math.max(
     8,
     Math.min(
@@ -727,9 +762,9 @@ function FloatingToolbar({
 
   return createPortal(
     <div
-      className="fixed z-80 flex items-center gap-0.5 rounded-xl border border-white/10 bg-black shadow-2xl px-1.5 py-1 animate-in fade-in-0 zoom-in-95 slide-in-from-bottom-2 dark:bg-[#1a1a1a] dark:border-white/15"
+      className="fixed z-80 flex items-center gap-1 rounded-xl border border-white/10 bg-black shadow-2xl px-2 py-1.5 animate-in fade-in-0 zoom-in-95 slide-in-from-bottom-2 dark:bg-[#1a1a1a] dark:border-white/15"
       style={{ left, top }}
-      onMouseDown={(e) => e.preventDefault()} // prevent losing selection
+      onMouseDown={(e) => e.preventDefault()}
     >
       {actions.map((action) => (
         <button
@@ -741,14 +776,14 @@ function FloatingToolbar({
           }}
           onMouseDown={(e) => e.preventDefault()}
           className={cn(
-            "flex items-center gap-1.5 px-2.5 py-1.5 rounded-md text-xs font-medium transition-colors",
+            "flex items-center gap-1.5 px-3 py-2 rounded-lg text-sm font-medium transition-colors",
             action.className ??
               "text-white/70 hover:bg-white/10 hover:text-white",
           )}
           title={action.label}
         >
           {action.icon}
-          <span className="hidden sm:inline">{action.label}</span>
+          <span>{action.label}</span>
         </button>
       ))}
     </div>,
@@ -1008,7 +1043,11 @@ export function TextSelectionToolbar() {
   return (
     <div data-selection-toolbar>
       {/* Floating toolbar */}
-      <FloatingToolbar position={toolbarPos} actions={toolbarActions} />
+      <FloatingToolbar
+        position={toolbarPos}
+        actions={toolbarActions}
+        isMobile={isMobile}
+      />
 
       {/* More popover */}
       <MorePopover