diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
index 0fc6e8d..d14d7d1 100644
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@@ -14,46 +14,56 @@
             android:layout_height="wrap_content">
 
             <com.google.android.material.card.MaterialCardView
-                android:layout_width="wrap_content"
+                android:layout_width="0dp"
                 android:layout_height="wrap_content"
                 app:cardCornerRadius="24dp"
                 app:cardElevation="4dp"
                 app:layout_constraintBottom_toBottomOf="parent"
                 app:layout_constraintEnd_toEndOf="parent"
                 app:layout_constraintStart_toStartOf="parent"
-                app:layout_constraintTop_toTopOf="parent">
+                app:layout_constraintTop_toTopOf="parent"
+                app:layout_constraintWidth_percent="0.7">
 
-                <LinearLayout
-                    android:layout_width="wrap_content"
+                <androidx.constraintlayout.widget.ConstraintLayout
+                    android:layout_width="match_parent"
                     android:layout_height="wrap_content"
-                    android:gravity="center"
-                    android:orientation="vertical"
                     android:padding="24dp">
 
                     <ImageView
-                        android:layout_width="64dp"
-                        android:layout_height="64dp"
+                        android:id="@+id/timerIcon"
+                        android:layout_width="80dp"
+                        android:layout_height="80dp"
                         android:src="@drawable/ic_timer"
+                        app:layout_constraintEnd_toEndOf="parent"
+                        app:layout_constraintStart_toStartOf="parent"
+                        app:layout_constraintTop_toTopOf="parent"
                         app:tint="@color/color_icon_tint" />
 
                     <TextView
                         android:id="@+id/tvInstructionTitle"
-                        android:layout_width="wrap_content"
+                        android:layout_width="match_parent"
                         android:layout_height="wrap_content"
                         android:layout_marginTop="16dp"
+                        android:gravity="center"
                         android:text="@string/instruction_title"
-                        android:textAlignment="center"
                         android:textAppearance="@style/TextAppearance.Material3.HeadlineMedium"
-                        android:textStyle="bold" />
+                        android:textStyle="bold"
+                        app:layout_constraintEnd_toEndOf="parent"
+                        app:layout_constraintStart_toStartOf="parent"
+                        app:layout_constraintTop_toBottomOf="@+id/timerIcon" />
 
                     <LinearLayout
-                        android:layout_width="wrap_content"
+                        android:id="@+id/instructionsLayout"
+                        android:layout_width="0dp"
                         android:layout_height="wrap_content"
                         android:layout_marginTop="24dp"
-                        android:orientation="vertical">
+                        android:orientation="vertical"
+                        app:layout_constraintEnd_toEndOf="parent"
+                        app:layout_constraintStart_toStartOf="parent"
+                        app:layout_constraintTop_toBottomOf="@+id/tvInstructionTitle">
 
                         <LinearLayout
-                            android:layout_width="wrap_content"
+                            android:layout_width="match_parent"
                             android:layout_height="wrap_content"
                             android:gravity="center_vertical"
                             android:orientation="horizontal"
@@ -72,7 +82,7 @@
                         </LinearLayout>
 
                         <LinearLayout
-                            android:layout_width="wrap_content"
+                            android:layout_width="match_parent"
                             android:layout_height="wrap_content"
                             android:gravity="center_vertical"
                             android:orientation="horizontal"
@@ -91,7 +101,7 @@
                         </LinearLayout>
 
                         <LinearLayout
-                            android:layout_width="wrap_content"
+                            android:layout_width="match_parent"
                             android:layout_height="wrap_content"
                             android:gravity="center_vertical"
                             android:orientation="horizontal"
@@ -116,16 +126,19 @@
                         android:layout_height="80dp"
                         android:layout_marginTop="32dp"
                         android:background="@drawable/btn_duration_selector"
-                        android:text="@string/start_timer"
                         android:drawableEnd="@drawable/ic_keyboard_arrow_down"
                         android:drawablePadding="8dp"
+                        android:gravity="center"
+                        android:includeFontPadding="false"
                         android:paddingStart="16dp"
                         android:paddingEnd="16dp"
+                        android:text="@string/start_timer"
                         android:textColor="#FFFFFF"
                         android:textSize="18sp"
                         android:textStyle="bold"
-                        android:gravity="center"
-                        android:includeFontPadding="false" />
+                        app:layout_constraintEnd_toEndOf="parent"
+                        app:layout_constraintStart_toStartOf="parent"
+                        app:layout_constraintTop_toBottomOf="@+id/instructionsLayout" />
 
                     <HorizontalScrollView
                         android:id="@+id/hsvDurationOptions"
@@ -133,7 +146,10 @@
                         android:layout_height="wrap_content"
                         android:layout_marginTop="8dp"
                         android:scrollbars="none"
-                        android:visibility="gone">
+                        android:visibility="gone"
+                        app:layout_constraintEnd_toEndOf="parent"
+                        app:layout_constraintStart_toStartOf="parent"
+                        app:layout_constraintTop_toBottomOf="@+id/btnDurationLabel">
 
                         <com.google.android.material.chip.ChipGroup
                             android:id="@+id/chipGroup"
@@ -192,9 +208,12 @@
                         android:text="@string/start_timer"
                         android:textColor="#FFFFFF"
                         android:textSize="16sp"
-                        android:textStyle="bold" />
+                        android:textStyle="bold"
+                        app:layout_constraintEnd_toEndOf="parent"
+                        app:layout_constraintStart_toStartOf="parent"
+                        app:layout_constraintTop_toBottomOf="@+id/hsvDurationOptions" />
 
-                </LinearLayout>
+                </androidx.constraintlayout.widget.ConstraintLayout>
             </com.google.android.material.card.MaterialCardView>
         </androidx.constraintlayout.widget.ConstraintLayout>
     </ScrollView>