fix: adjust UI for open project pop up

src/components/common/OpenProjectModal.css

@@ -1,42 +1,79 @@
-/* Overlay — blocks and blurs content below */
+/* Overlay — centered, blurs content below */
 .open-project-overlay {
   position: fixed;
-  inset: 0;
-  background-color: rgba(0, 0, 0, 0.5);
-  backdrop-filter: blur(3px);
-  z-index: 2000;
+  top: 0;
+  left: 0;
+  right: 0;
+  bottom: 0;
+  background-color: rgba(0, 0, 0, 0.7);
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  z-index: 10001;
+  backdrop-filter: blur(2px);
 }
 
-/* Open Project Panel — follows PianoRoll panel pattern */
+/* Open Project Panel — centered dialog */
 .open-project-panel {
-  position: fixed;
   background-color: #2d2d2d;
   border: 1px solid #3a3a3a;
-  box-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
+  border-radius: 8px;
+  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
+  width: 90%;
+  max-width: 700px;
+  height: 70vh;
   display: flex;
   flex-direction: column;
   overflow: hidden;
+  animation: openProjectFadeIn 0.2s ease-out;
 }
 
-/* Header — draggable */
+@keyframes openProjectFadeIn {
+  from {
+    opacity: 0;
+    transform: scale(0.95) translateY(-10px);
+  }
+  to {
+    opacity: 1;
+    transform: scale(1) translateY(0);
+  }
+}
+
+/* Header */
 .open-project-header {
-  height: 30px;
-  background-color: #1e1e1e;
-  border-bottom: 1px solid #3a3a3a;
   display: flex;
+  justify-content: space-between;
   align-items: center;
-  padding: 0 10px;
-  cursor: move;
-  user-select: none;
+  padding: 20px;
+  border-bottom: 1px solid #3a3a3a;
+  background-color: #252525;
   flex-shrink: 0;
 }
 
 .open-project-title {
-  flex: 1;
-  text-align: center;
-  font-size: 14px;
   color: #e0e0e0;
-  text-transform: uppercase;
+  font-size: 18px;
+  font-weight: 600;
+  margin: 0;
+}
+
+.open-project-close-btn {
+  background: transparent;
+  border: none;
+  color: #b0b0b0;
+  cursor: pointer;
+  padding: 8px;
+  border-radius: 4px;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  font-size: 16px;
+  transition: all 0.2s ease;
+}
+
+.open-project-close-btn:hover {
+  background-color: #3a3a3a;
+  color: #e0e0e0;
 }
 
 /* Filter bar — sticky at top */
@@ -268,18 +305,3 @@
   font-size: 14px;
   padding: 40px;
 }
-
-/* Resize handle — same as PianoRoll */
-.open-project-panel .resize-handle {
-  position: absolute;
-  right: 5px;
-  bottom: 5px;
-  width: 20px;
-  height: 20px;
-  cursor: nwse-resize;
-  color: #999;
-  display: flex;
-  align-items: center;
-  justify-content: center;
-  z-index: 100;
-}