diff --git a/index.html b/index.html
index 7d7d31d..348e41e 100644
--- a/index.html
+++ b/index.html
@@ -45,6 +45,52 @@
         grid-template-columns: 1fr 1fr;
         grid-template-rows: 1fr 1fr;
       }
+
+      /* Maximized view layout */
+      .video-container.maximized {
+        display: flex;
+        flex-direction: row;
+      }
+
+      .video-container.maximized .main-video {
+        width: 80%;
+        height: 100%;
+      }
+
+      .video-container.maximized .side-videos {
+        width: 20%;
+        height: 100%;
+        display: flex;
+        flex-direction: column;
+        overflow-y: auto;
+      }
+
+      .video-container.maximized .side-videos .video-wrapper {
+        position: relative;
+        height: 150px;
+        min-height: 150px;
+        width: 100%;
+        margin-bottom: 5px;
+      }
+
+      .video-container.maximized .side-videos video {
+        height: 100%;
+        width: 100%;
+      }
+
+      .video-number-label {
+        font-family: "Helvetica", "Arial", sans-serif;
+        position: absolute;
+        top: 50%;
+        left: 50%;
+        transform: translate(-50%, -50%);
+        font-size: 48px;
+        font-weight: bold;
+        color: white;
+        z-index: 10;
+        mix-blend-mode: difference;
+      }
+
       video {
         width: 100%;
         height: 100%;
diff --git a/src/main.ts b/src/main.ts
index d0f0be5..9a0a21f 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -7,6 +7,8 @@ type VideoConfig = {
 
 let videos: VideoConfig[] = [];
 let videoElements: HTMLVideoElement[] = [];
+let isMaximizedView = false;
+let maximizedVideoIndex = -1;
 
 // Initialize the video grid
 async function initialize(url: string) {
@@ -204,12 +206,110 @@ function onTimeUpdate(event: Event) {
   }
 }
 
+// Function to toggle maximized view for a specific video
+function toggleMaximizedView(index: number) {
+  const container = document.getElementById("videoContainer");
+  if (!container) return;
+
+  // If we're already in maximized view and trying to maximize the same video, do nothing
+  if (isMaximizedView && maximizedVideoIndex === index) return;
+
+  // If we're trying to restore grid view (index === -1)
+  if (index === -1) {
+    if (!isMaximizedView) return; // Already in grid view
+
+    // Remove maximized class and restore grid class
+    container.classList.remove("maximized");
+    container.classList.add(`count-${videos.length}`);
+
+    // Remove any wrapper divs and restore original structure
+    while (container.firstChild) {
+      container.removeChild(container.firstChild);
+    }
+
+    // Re-add all videos directly to the container
+    videoElements.forEach(video => {
+      container.appendChild(video);
+    });
+
+    isMaximizedView = false;
+    maximizedVideoIndex = -1;
+    return;
+  }
+
+  // If the index is out of range, do nothing
+  if (index < 0 || index >= videoElements.length) return;
+
+  // Switch to maximized view
+  container.classList.remove(`count-${videos.length}`);
+  container.classList.add("maximized");
+
+  // Clear the container
+  while (container.firstChild) {
+    container.removeChild(container.firstChild);
+  }
+
+  // Create main video div
+  const mainVideoDiv = document.createElement("div");
+  mainVideoDiv.className = "main-video";
+  mainVideoDiv.appendChild(videoElements[index]);
+  container.appendChild(mainVideoDiv);
+
+  // Create side videos div
+  const sideVideosDiv = document.createElement("div");
+  sideVideosDiv.className = "side-videos";
+  container.appendChild(sideVideosDiv);
+
+  // Add all other videos to side videos div with number labels
+  videoElements.forEach((video, i) => {
+    if (i !== index) {
+      // Create a wrapper for the video and label
+      const videoWrapper = document.createElement("div");
+      videoWrapper.className = "video-wrapper";
+      
+      // Add the video to the wrapper
+      videoWrapper.appendChild(video);
+      
+      // Create and add the number label
+      const numberLabel = document.createElement("div");
+      numberLabel.className = "video-number-label";
+      numberLabel.textContent = String(i + 1); // 1-based indexing for display
+      videoWrapper.appendChild(numberLabel);
+      
+      // Add the wrapper to the side videos div
+      sideVideosDiv.appendChild(videoWrapper);
+    }
+  });
+
+  isMaximizedView = true;
+  maximizedVideoIndex = index;
+}
+
+// Handle keyboard events
+function handleKeyPress(event: KeyboardEvent) {
+  // Check if the key pressed is a number
+  const key = event.key;
+  if (/^[0-9]$/.test(key)) {
+    const num = parseInt(key, 10);
+    if (num === 0) {
+      // Restore grid view
+      toggleMaximizedView(-1);
+    } else if (num <= videoElements.length) {
+      // Maximize the corresponding video (1-based indexing for user, 0-based for array)
+      toggleMaximizedView(num - 1);
+    }
+  }
+}
+
 // Initialize everything when the page loads
 document.addEventListener("DOMContentLoaded", async () => {
   try {
-    initialize("content/data.json");
+    await initialize("content/data.json");
+    
+    // Add keyboard event listener
+    document.addEventListener("keydown", handleKeyPress);
   } catch (err) {
-    console.error(err);
-    alert(`Failed to load videos: ${err}`);
+    console.error("Failed to initialize:", err);
+    alert(`Failed to initialize: ${err}`);
   }
 });