fix: add missing mobile bottom sheet styles for Tools menu

apps/web/src/styles.css

@@ -3646,6 +3646,87 @@ a.nav-item,
   padding: 0 4px;
 }
 
+/* Mobile Bottom Sheet */
+.mobile-bottom-sheet-overlay {
+  position: fixed;
+  inset: 0;
+  background: rgba(0, 0, 0, 0.5);
+  z-index: 200;
+  display: flex;
+  align-items: flex-end;
+  justify-content: center;
+}
+
+.mobile-bottom-sheet {
+  background: var(--panel);
+  border-radius: 16px 16px 0 0;
+  width: 100%;
+  max-width: 600px;
+  max-height: 70vh;
+  display: flex;
+  flex-direction: column;
+  animation: slide-up 0.2s ease-out;
+}
+
+@keyframes slide-up {
+  from {
+    transform: translateY(100%);
+  }
+  to {
+    transform: translateY(0);
+  }
+}
+
+.mobile-bottom-sheet-header {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  padding: 12px 16px 8px;
+  border-bottom: 1px solid var(--border);
+}
+
+.mobile-bottom-sheet-handle {
+  width: 36px;
+  height: 4px;
+  background: var(--border);
+  border-radius: 2px;
+  margin-bottom: 8px;
+}
+
+.mobile-bottom-sheet-title {
+  font-size: 16px;
+  font-weight: 600;
+  margin: 0;
+}
+
+.mobile-bottom-sheet-content {
+  padding: 8px 0;
+  overflow-y: auto;
+}
+
+.mobile-bottom-sheet-item {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  width: 100%;
+  padding: 16px;
+  background: none;
+  border: none;
+  color: var(--text);
+  font-size: 16px;
+  text-align: left;
+  cursor: pointer;
+  min-height: 44px;
+}
+
+.mobile-bottom-sheet-item:active {
+  background: var(--hover);
+}
+
+.mobile-bottom-sheet-item.active {
+  color: var(--brand);
+}
+
 /* Mobile Page Header */
 .mobile-page-header {
   display: flex;