diff --git a/modules/cybercore-ui/src/main/java/br/com/cybercore/signer/ui/view/MainAppView.java b/modules/cybercore-ui/src/main/java/br/com/cybercore/signer/ui/view/MainAppView.java
index ba424c2..7c22780 100644
--- a/modules/cybercore-ui/src/main/java/br/com/cybercore/signer/ui/view/MainAppView.java
+++ b/modules/cybercore-ui/src/main/java/br/com/cybercore/signer/ui/view/MainAppView.java
@@ -81,9 +81,19 @@ public final class MainAppView {
             ColumnConstraints col = new ColumnConstraints();
             col.setHgrow(Priority.ALWAYS);
             col.setPercentWidth(33.33);
+            col.setFillWidth(true);
             actionGrid.getColumnConstraints().add(col);
         }
 
+        for (int i = 0; i < 2; i++) {
+            javafx.scene.layout.RowConstraints row = new javafx.scene.layout.RowConstraints();
+            row.setVgrow(Priority.NEVER);
+            row.setMinHeight(68);
+            row.setPrefHeight(Region.USE_COMPUTED_SIZE);
+            row.setFillHeight(true);
+            actionGrid.getRowConstraints().add(row);
+        }
+
         // Linha 0: Operações de Assinatura
         actionGrid.add(createActionButton(Icons.pdf(Icons.SIZE_40), "Assinar\nPDF", () -> trigger(onSignPdf)), 0, 0);
         actionGrid.add(createActionButton(Icons.xml(Icons.SIZE_40), "Assinar\nXML", () -> trigger(onSignXml)), 1, 0);
@@ -211,8 +221,8 @@ public final class MainAppView {
         Button btn = new Button();
         btn.getStyleClass().add("cyber-action-card");
         btn.setMaxWidth(Double.MAX_VALUE);
-        btn.setPrefHeight(72);
-        btn.setMinHeight(68);
+        btn.setPrefHeight(68);
+        btn.setMinHeight(Region.USE_PREF_SIZE);
 
         HBox content = new HBox(12);
         content.setAlignment(Pos.CENTER_LEFT);
@@ -245,7 +255,7 @@ public final class MainAppView {
         Button btn = new Button();
         btn.getStyleClass().add("cyber-side-card");
         btn.setPrefHeight(42);
-        btn.setMinHeight(42);
+        btn.setMinHeight(40);
         btn.setMaxWidth(Double.MAX_VALUE);
 
         HBox content = new HBox(12);
diff --git a/modules/cybercore-ui/src/main/resources/styles/theme.css b/modules/cybercore-ui/src/main/resources/styles/theme.css
index bd9d078..3786be0 100644
--- a/modules/cybercore-ui/src/main/resources/styles/theme.css
+++ b/modules/cybercore-ui/src/main/resources/styles/theme.css
@@ -145,6 +145,7 @@
    3. HUB DE AÇÕES E PAINEL LATERAL
    ========================================================================== */
 
+.button.cyber-action-card,
 .cyber-action-card {
     -fx-background-color: -fx-color-surface;
     -fx-border-color: -fx-color-border;
@@ -160,16 +161,24 @@
     -fx-effect: dropshadow(three-pass-box, -fx-color-shadow, 6, 0, 0, 2);
 }
 
+.button.cyber-action-card:hover,
 .cyber-action-card:hover {
     -fx-background-color: -fx-color-surface-hover;
     -fx-border-color: -fx-color-primary;
     -fx-effect: dropshadow(three-pass-box, -fx-color-shadow-hover, 10, 0, 0, 4);
 }
 
+.button.cyber-action-card:pressed,
 .cyber-action-card:pressed {
     -fx-background-color: -fx-color-surface-active;
 }
 
+.button.cyber-action-card:focused,
+.cyber-action-card:focused {
+    -fx-border-color: -fx-color-focus;
+    -fx-border-width: 1.5px;
+}
+
 .cyber-action-text {
     -fx-font-size: 13px;
     -fx-font-weight: bold;
@@ -187,6 +196,7 @@
     -fx-effect: dropshadow(three-pass-box, -fx-color-shadow, 4, 0, 0, 1);
 }
 
+.button.cyber-side-card,
 .cyber-side-card {
     -fx-background-color: transparent;
     -fx-border-color: transparent;
@@ -196,18 +206,29 @@
     -fx-padding: 6px 10px;
     -fx-alignment: CENTER_LEFT;
     -fx-cursor: hand;
+    -fx-pref-height: 40px;
+    -fx-min-height: 40px;
     -fx-max-width: Infinity;
 }
 
+.button.cyber-side-card:hover,
 .cyber-side-card:hover {
     -fx-background-color: -fx-color-surface-hover;
     -fx-border-color: -fx-color-border-subtle;
 }
 
+.button.cyber-side-card:pressed,
 .cyber-side-card:pressed {
     -fx-background-color: -fx-color-surface-active;
 }
 
+.button.cyber-side-card:focused,
+.cyber-side-card:focused {
+    -fx-background-color: -fx-color-surface-hover;
+    -fx-border-color: -fx-color-focus;
+    -fx-border-width: 1.5px;
+}
+
 .cyber-side-text {
     -fx-font-size: 13px;
     -fx-text-fill: -fx-color-text;
@@ -522,7 +543,7 @@
     -fx-background-color: transparent;
     -fx-border-color: transparent;
     -fx-border-width: 1px;
-    -fx-text-fill: -fx-color-text;
+    -fx-text-fill: -fx-color-text-muted;
     -fx-font-weight: 500;
 }
 
@@ -542,7 +563,8 @@
 .btn-ghost:focused,
 .btn-toolbar:focused,
 .btn-cancel:focused {
-    -fx-border-color: -fx-color-focus;
+    -fx-background-color: -fx-color-surface-hover;
+    -fx-border-color: -fx-color-border-subtle;
     -fx-border-width: 1.5px;
 }