feat: initialize project with core dependencies and game entry point

style.css

@@ -0,0 +1,57 @@
+body {
+    margin: 0;
+    overflow: hidden;
+    background-color: #000;
+    font-family: 'Courier New', Courier, monospace;
+    color: #fff;
+    user-select: none;
+}
+
+#game-container {
+    position: absolute;
+    top: 0;
+    left: 0;
+    width: 100%;
+    height: 100%;
+    z-index: 1;
+    image-rendering: pixelated;
+}
+
+#ui-layer {
+    position: absolute;
+    top: 0;
+    left: 0;
+    width: 100%;
+    height: 100%;
+    z-index: 2;
+    pointer-events: none;
+    /* Let clicks pass through to canvas if needed, but start screen needs clicks */
+}
+
+#start-screen {
+    position: absolute;
+    top: 50%;
+    left: 50%;
+    transform: translate(-50%, -50%);
+    text-align: center;
+    pointer-events: auto;
+    cursor: pointer;
+}
+
+h1 {
+    font-size: 4rem;
+    text-shadow: 2px 2px #ff0000;
+    margin-bottom: 0.5rem;
+}
+
+.controls {
+    font-size: 0.8rem;
+    opacity: 0.7;
+}
+
+#hud {
+    position: absolute;
+    bottom: 20px;
+    left: 20px;
+    font-size: 1.2rem;
+}