fix: align editor UI with design spec (#64)

src/components/editor/callout-plugin.tsx

@@ -76,7 +76,7 @@ export function CalloutPlugin(): null {
 
           if (!emojiSpan) {
             emojiSpan = document.createElement("span");
-            emojiSpan.className = "callout-emoji select-none text-base shrink-0";
+            emojiSpan.className = "callout-emoji select-none text-lg shrink-0";
             emojiSpan.contentEditable = "false";
             dom.insertBefore(emojiSpan, dom.firstChild);
           }

src/components/editor/design-spec-compliance.test.ts

@@ -0,0 +1,64 @@
+import { describe, it, expect } from "vitest";
+import { readFileSync } from "fs";
+import { resolve } from "path";
+
+/**
+ * Regression tests for issue #64: UI does not match design spec after PR #59.
+ *
+ * These tests verify that editor plugin source files comply with the design
+ * spec constraints. They catch violations at the source level since the
+ * plugins manipulate DOM directly and aren't easily unit-testable.
+ */
+
+function readSource(relativePath: string): string {
+  return readFileSync(resolve(__dirname, relativePath), "utf-8");
+}
+
+describe("callout-plugin design spec compliance", () => {
+  const source = readSource("./callout-plugin.tsx");
+
+  it("callout emoji does not use text-base (not in typography scale)", () => {
+    // The typography scale does not include text-base. Emoji should use
+    // text-lg or text-sm per the design spec.
+    const emojiClassMatch = source.match(
+      /callout-emoji[^"]*text-base[^"]*/
+    );
+    expect(emojiClassMatch).toBeNull();
+  });
+
+  it("callout emoji uses an allowed typography size", () => {
+    const emojiClassLine = source.match(
+      /callout-emoji[^"]*?(text-(?:sm|lg|xl|2xl|3xl))/
+    );
+    expect(emojiClassLine).not.toBeNull();
+  });
+});
+
+describe("draggable-block-plugin design spec compliance", () => {
+  const source = readSource("./draggable-block-plugin.tsx");
+
+  it("drag handle does not use transition classes (hover states must be instant)", () => {
+    // Design spec: "Hover states: no transition (instant)."
+    // The drag handle className must not include transition-opacity or duration-*.
+    const menuClassMatch = source.match(
+      /DRAGGABLE_BLOCK_MENU_CLASSNAME[^`]*transition-opacity/
+    );
+    expect(menuClassMatch).toBeNull();
+  });
+
+  it("dragging element applies scale(1.02) per drag-and-drop spec", () => {
+    // Design spec: "Dragging: element at 50% opacity, slight scale (scale-[1.02]), shadow-lg."
+    expect(source).toContain('style.transform = "scale(1.02)"');
+  });
+
+  it("dragging element applies shadow-lg equivalent per drag-and-drop spec", () => {
+    // The shadow-lg value from Tailwind's theme
+    expect(source).toContain("style.boxShadow");
+    expect(source).toContain("0 10px 15px -3px");
+  });
+
+  it("drag end resets transform and boxShadow", () => {
+    expect(source).toContain('style.transform = ""');
+    expect(source).toContain('style.boxShadow = ""');
+  });
+});

src/components/editor/draggable-block-plugin.tsx

@@ -183,6 +183,9 @@ export function DraggableBlockPlugin({
       // Set drag image
       const dragImage = target.cloneNode(true) as HTMLElement;
       dragImage.style.opacity = "0.5";
+      dragImage.style.transform = "scale(1.02)";
+      dragImage.style.boxShadow =
+        "0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1)";
       dragImage.style.position = "absolute";
       dragImage.style.top = "-1000px";
       document.body.appendChild(dragImage);
@@ -191,6 +194,9 @@ export function DraggableBlockPlugin({
 
       draggingBlockElemRef.current = target;
       target.style.opacity = "0.5";
+      target.style.transform = "scale(1.02)";
+      target.style.boxShadow =
+        "0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1)";
     },
     [editor]
   );
@@ -199,6 +205,8 @@ export function DraggableBlockPlugin({
     isDraggingRef.current = false;
     if (draggingBlockElemRef.current) {
       draggingBlockElemRef.current.style.opacity = "1";
+      draggingBlockElemRef.current.style.transform = "";
+      draggingBlockElemRef.current.style.boxShadow = "";
       draggingBlockElemRef.current = null;
     }
     if (dropIndicatorRef.current) {
@@ -292,7 +300,7 @@ export function DraggableBlockPlugin({
       {/* Drag handle */}
       <div
         ref={menuRef}
-        className={`${DRAGGABLE_BLOCK_MENU_CLASSNAME} absolute z-10 cursor-grab opacity-0 transition-opacity duration-100 active:cursor-grabbing`}
+        className={`${DRAGGABLE_BLOCK_MENU_CLASSNAME} absolute z-10 cursor-grab opacity-0 active:cursor-grabbing`}
         draggable
         onDragStart={handleDragStart}
         onDragEnd={handleDragEnd}