fix: restore missing .share-dropdown and .more-menu CSS, reposition Get Started

- Share dropdown and More menu CSS were accidentally removed — restored
- Share dropdown: position absolute under button (top: calc(100% + 4px))
- Get Started toolbar: bottom: 28px to clear the editor statusbar
- Removed gradient background that was cut off by statusbar

static/css/app.css

@@ -2162,12 +2162,11 @@ input, select, textarea { font-family: inherit; color: inherit; }
 
 /* ═══════════ Get Started Toolbar (bottom, pill buttons) ═══════════ */
 .get-started-toolbar {
-  position: fixed; bottom: 0; left: 50%; transform: translateX(-50%);
+  position: fixed; bottom: 28px; left: 50%; transform: translateX(-50%);
   display: flex; align-items: center; gap: 8px;
   padding: 12px 0 16px; flex-wrap: wrap;
   justify-content: center; z-index: 10;
-  background: linear-gradient(to top, var(--bg-primary) 60%, transparent);
-  width: 100%; max-width: 900px;
+  pointer-events: auto;
 }
 .gs-label {
   font-size: 13px; color: var(--text-dim); margin-right: 4px;
@@ -2218,6 +2217,22 @@ input, select, textarea { font-family: inherit; color: inherit; }
 .page-action-btn .chevron-down { font-size: 9px; opacity: 0.5; margin-left: 2px; }
 .star-btn { font-size: 16px; padding: 4px 8px; }
 .star-btn .starred { color: #f5c542; }
+
+/* ── Share dropdown ── */
+.share-dropdown {
+  position: absolute; top: calc(100% + 4px); right: 0;
+  background: var(--bg-secondary); border: 1px solid var(--border);
+  border-radius: 10px; box-shadow: 0 8px 32px rgba(0,0,0,0.5);
+  min-width: 360px; z-index: 200; padding: 8px 0;
+}
+.share-dd-section { padding: 8px 16px; }
+.share-dd-row {
+  display: flex; align-items: center; gap: 8px;
+  font-size: 14px; color: var(--text-primary);
+}
+.share-dd-row.clickable { cursor: pointer; }
+.share-dd-row.clickable:hover { opacity: 0.8; }
+.share-dd-hint { font-size: 12px; color: var(--text-dim); }
 .share-dd-desc { font-size: 12px; color: var(--text-dim); margin: 4px 0 0; line-height: 1.4; }
 .share-dd-sep { height: 1px; background: var(--border); margin: 4px 0; }
 .share-dd-label { font-size: 12px; color: var(--text-dim); margin-bottom: 6px; }
@@ -2239,6 +2254,21 @@ input, select, textarea { font-family: inherit; color: inherit; }
 }
 .share-dd-btn:hover { opacity: 0.9; }
 
+/* ── More menu dropdown ── */
+.more-menu {
+  position: absolute; top: calc(100% + 4px); right: 0;
+  background: var(--bg-secondary); border: 1px solid var(--border);
+  border-radius: 8px; box-shadow: 0 4px 16px rgba(0,0,0,0.4);
+  min-width: 200px; z-index: 100; padding: 4px 0;
+}
+.more-menu-item {
+  padding: 8px 14px; font-size: 13px; color: var(--text-primary);
+  cursor: pointer; display: flex; align-items: center; gap: 8px;
+}
+.more-menu-item:hover { background: var(--bg-hover); }
+.more-menu-item.danger { color: #e03e3e; }
+.more-menu-sep { height: 1px; background: var(--border); margin: 4px 0; }
+
 /* ── Toggle switch ── */
 .toggle-switch { position: relative; display: inline-block; width: 36px; height: 20px; }
 .toggle-switch.sm { width: 32px; height: 18px; }