feat: selecao individual de leads antes de salvar, dark mode global e extracao 100% real do Google Maps

frontend/styles/style.css

@@ -20,10 +20,22 @@
     --status-optout: #8B949E;
 }
 
-body {
-    background-color: var(--bg-primary);
-    color: var(--text-primary);
-    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
+/* Global Dark Mode Overrides */
+html, body, [data-testid="stAppViewContainer"], [data-testid="stHeader"] {
+    background-color: var(--bg-primary) !important;
+    color: var(--text-primary) !important;
+}
+
+[data-testid="stSidebar"] {
+    background-color: var(--bg-secondary) !important;
+    border-right: 1px solid var(--border-color) !important;
+}
+
+/* Dataframe and Tables Dark Styling */
+[data-testid="stDataFrame"] {
+    background-color: var(--bg-secondary) !important;
+    border: 1px solid var(--border-color) !important;
+    border-radius: 8px !important;
 }
 
 /* Custom Metric Card */
@@ -34,7 +46,7 @@ body {
     padding: 16px;
     margin-bottom: 12px;
     text-align: center;
-    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
+    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
 }
 
 .metric-title {