Update style.css

style.css

@@ -18,6 +18,7 @@ h1 {
     font-weight: 500;
     background: linear-gradient(45deg, #60a5fa, #a78bfa);
     -webkit-background-clip: text;
+    background-clip: text;
     -webkit-text-fill-color: transparent;
     text-align: center;
 }
@@ -46,7 +47,7 @@ video {
     display: block;
     width: 100%;
     height: 100%;
-    object-fit: cover;
+    object-fit: contain;
 }
 
 canvas {
@@ -76,6 +77,55 @@ canvas {
     text-align: center;
 }
 
+#source-toggle {
+    position: absolute;
+    top: 12px;
+    right: 12px;
+    z-index: 10;
+    display: flex;
+    gap: 4px;
+    opacity: 0;
+    transition: opacity 0.25s ease;
+    pointer-events: none;
+}
+
+.container:hover #source-toggle {
+    opacity: 1;
+    pointer-events: auto;
+}
+
+.source-btn {
+    display: flex;
+    align-items: center;
+    gap: 5px;
+    background: rgba(0, 0, 0, 0.6);
+    backdrop-filter: blur(4px);
+    color: #ccc;
+    border: 1px solid transparent;
+    padding: 6px 12px;
+    border-radius: 6px;
+    font-family: system-ui, -apple-system, sans-serif;
+    font-size: 13px;
+    cursor: pointer;
+    transition: all 0.2s ease;
+    line-height: 1;
+}
+
+.source-btn:hover {
+    background: rgba(0, 0, 0, 0.8);
+    color: #fff;
+}
+
+.source-btn.active {
+    background: rgba(59, 130, 246, 0.7);
+    color: #fff;
+    border-color: rgba(96, 165, 250, 0.5);
+}
+
+#pause-btn {
+    margin-left: 4px;
+}
+
 #status {
     position: absolute;
     inset: 0;
@@ -133,6 +183,33 @@ input[type=range] {
     width: 3ch;
 }
 
+.control-divider {
+    width: 1px;
+    height: 20px;
+    background: #444;
+}
+
+#allowed-labels {
+    background: #333;
+    border: 1px solid #555;
+    border-radius: 4px;
+    color: #eee;
+    padding: 4px 8px;
+    font-size: 0.85rem;
+    font-family: system-ui, -apple-system, sans-serif;
+    width: 140px;
+    outline: none;
+    transition: border-color 0.2s;
+}
+
+#allowed-labels::placeholder {
+    color: #777;
+}
+
+#allowed-labels:focus {
+    border-color: #3b82f6;
+}
+
 footer {
     margin-top: 30px;
     font-size: 0.8rem;