core functionality complete

src/viewer/index.css

@@ -0,0 +1,101 @@
+:root {
+  --bg: #ffffff;
+  --text: #1a1a2e;
+  --accent: #4361ee;
+  --accent-hover: #3a56d4;
+  --border: #e2e8f0;
+  --radius: 8px;
+}
+
+* {
+  margin: 0;
+  padding: 0;
+  box-sizing: border-box;
+}
+
+body {
+  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
+  background: var(--bg);
+  color: var(--text);
+  min-width: 360px;
+  padding: 16px;
+}
+
+#app {
+  display: flex;
+  flex-direction: column;
+  gap: 12px;
+}
+
+h1 {
+  font-size: 18px;
+  font-weight: 600;
+}
+
+button {
+  padding: 8px 16px;
+  background: var(--accent);
+  color: white;
+  border: none;
+  border-radius: var(--radius);
+  font-size: 14px;
+  cursor: pointer;
+  transition: background 150ms;
+}
+
+button:hover {
+  background: var(--accent-hover);
+}
+
+.btn-row {
+  display: flex;
+  gap: 8px;
+  justify-content: space-between;
+}
+
+.btn-secondary {
+  background: #64748b;
+}
+
+.btn-secondary:hover {
+  background: #475569;
+}
+
+.status {
+  color: #64748b;
+  font-size: 12px;
+  min-height: 16px;
+}
+
+.video-list {
+  max-height: 180px;
+  overflow-y: auto;
+  border: 1px solid var(--border);
+  border-radius: var(--radius);
+  padding: 8px;
+  font-size: 12px;
+  background: #f8fafc;
+}
+
+.video-item {
+  display: block;
+  padding: 4px 0;
+  color: var(--accent);
+  text-decoration: none;
+  word-break: break-all;
+  font-size: 11px;
+  line-height: 1.4;
+}
+
+.video-item:hover {
+  text-decoration: underline;
+}
+
+.copy-btn {
+  margin-top: 8px;
+  width: 100%;
+  padding: 6px 12px;
+  font-size: 12px;
+  background: var(--accent);
+  border-radius: var(--radius);
+}