<?xml version="1.0" encoding="utf-8"?>
<ScrollView
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fillViewport="true"
    android:overScrollMode="never"
    android:scrollbars="none"
    android:background="#FFFFFF">

    <androidx.constraintlayout.widget.ConstraintLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="#FFFFFF"
        tools:context=".PaymentActivity">

        <!-- Red Status Bar (Override purple) -->
        <View
            android:id="@+id/red_status_bar"
            android:layout_width="match_parent"
            android:layout_height="24dp"
            android:background="#E31937"
            app:layout_constraintTop_toTopOf="parent"/>

        <!-- Red Background Header (Extended height untuk back navigation) -->
        <View
            android:id="@+id/red_header_background"
            android:layout_width="match_parent"
            android:layout_height="160dp"
            android:background="#E31937"
            app:layout_constraintTop_toBottomOf="@id/red_status_bar"/>

        <!-- Back Navigation (Positioned closer to status bar/appbar) -->
        <LinearLayout
            android:id="@+id/back_navigation"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:orientation="horizontal"
            android:gravity="center_vertical"
            android:layout_marginStart="16dp"
            android:layout_marginBottom="5dp"
            android:background="?attr/selectableItemBackgroundBorderless"
            android:padding="8dp"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@id/red_status_bar">

            <!-- Back Arrow -->
            <ImageView
                android:id="@+id/backArrow"
                android:layout_width="16dp"
                android:layout_height="16dp"
                android:src="@drawable/ic_arrow_back"
                android:contentDescription="Back" />

            <!-- Title Text -->
            <TextView
                android:id="@+id/toolbarTitle"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginStart="8dp"
                android:text="Kembali"
                android:textColor="@android:color/white"
                android:textSize="12sp"
                android:fontFamily="@font/inter"
                android:textStyle="normal" />

        </LinearLayout>

        <!-- Payment Card -->
        <androidx.cardview.widget.CardView
            android:id="@+id/paymentCard"
            android:layout_width="match_parent"
            android:layout_height="191dp"
            android:layout_margin="16dp"
            android:layout_marginTop="5dp"
            app:cardBackgroundColor="#3498DB"
            app:cardCornerRadius="12dp"
            app:cardElevation="8dp"
            app:layout_constraintTop_toBottomOf="@id/back_navigation">

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:orientation="vertical"
                android:padding="20dp">

                <!-- Title -->
                <TextView
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:text="TOTAL PEMBAYARAN"
                    android:textColor="@android:color/white"
                    android:textSize="18sp"
                    android:textStyle="bold"
                    android:fontFamily="@font/inter"
                    android:layout_marginBottom="24dp" />

                <!-- Amount Input Section -->
                <LinearLayout
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:orientation="horizontal"
                    android:layout_marginBottom="8dp">

                    <TextView
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:text="RP"
                        android:textColor="@android:color/white"
                        android:textSize="20sp"
                        android:textStyle="bold"
                        android:fontFamily="@font/inter"
                        android:layout_marginEnd="8dp"
                        android:layout_gravity="bottom" />

                    <EditText
                        android:id="@+id/editTextAmount"
                        android:layout_width="0dp"
                        android:layout_height="wrap_content"
                        android:layout_weight="1"
                        android:background="@android:color/transparent"
                        android:textColor="@android:color/white"
                        android:textColorHint="#80FFFFFF"
                        android:textSize="20sp"
                        android:textStyle="bold"
                        android:fontFamily="@font/inter"
                        android:hint=""
                        android:inputType="none"
                        android:focusable="false"
                        android:clickable="false"
                        android:cursorVisible="false"
                        android:text=""
                        android:gravity="start"
                        android:paddingBottom="4dp" />

                </LinearLayout>

                <!-- White Underline -->
                <View
                    android:layout_width="match_parent"
                    android:layout_height="2dp"
                    android:background="@android:color/white"
                    android:layout_marginBottom="16dp" />

                <!-- Description -->
                <TextView
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:text="Pastikan kembali nominal pembayaran pelanggan Anda"
                    android:textColor="@android:color/white"
                    android:textSize="12sp"
                    android:fontFamily="@font/inter"
                    android:alpha="0.9" />

            </LinearLayout>

        </androidx.cardview.widget.CardView>

        <!-- Numpad -->
        <GridLayout
            android:id="@+id/numpad_grid"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:columnCount="3"
            android:rowCount="4"
            android:layout_marginTop="24dp"
            android:layout_marginStart="16dp"
            android:layout_marginEnd="16dp"
            app:layout_constraintTop_toBottomOf="@id/paymentCard">

            <!-- Row 1: 1, 2, 3 -->
            <TextView
                android:id="@+id/btn1"
                style="@style/NumpadButton"
                android:text="1" />

            <TextView
                android:id="@+id/btn2"
                style="@style/NumpadButton"
                android:text="2" />

            <TextView
                android:id="@+id/btn3"
                style="@style/NumpadButton"
                android:text="3" />

            <!-- Row 2: 4, 5, 6 -->
            <TextView
                android:id="@+id/btn4"
                style="@style/NumpadButton"
                android:text="4" />

            <TextView
                android:id="@+id/btn5"
                style="@style/NumpadButton"
                android:text="5" />

            <TextView
                android:id="@+id/btn6"
                style="@style/NumpadButton"
                android:text="6" />

            <!-- Row 3: 7, 8, 9 -->
            <TextView
                android:id="@+id/btn7"
                style="@style/NumpadButton"
                android:text="7" />

            <TextView
                android:id="@+id/btn8"
                style="@style/NumpadButton"
                android:text="8" />

            <TextView
                android:id="@+id/btn9"
                style="@style/NumpadButton"
                android:text="9" />

            <!-- Row 4: 000, 0, Delete -->
            <TextView
                android:id="@+id/btn000"
                style="@style/NumpadButton"
                android:text="000" />

            <TextView
                android:id="@+id/btn0"
                style="@style/NumpadButton"
                android:text="0" />

            <ImageView
                android:id="@+id/btnDelete"
                android:layout_width="0dp"
                android:layout_height="60dp"
                android:layout_columnWeight="1"
                android:layout_margin="8dp"
                android:background="?attr/selectableItemBackgroundBorderless"
                android:src="@drawable/ic_backspace"
                android:scaleType="center"
                android:contentDescription="Delete" />

        </GridLayout>

        <!-- Confirmation Button (UPDATED: Menggunakan MaterialButton) -->
        <com.google.android.material.button.MaterialButton
            android:id="@+id/confirmButton"
            android:layout_width="match_parent"
            android:layout_height="48dp"
            android:text="Konfirmasi"
            android:textColor="#FFFFFF"
            android:textSize="16sp"
            android:textStyle="bold"
            android:fontFamily="@font/inter"
            android:layout_marginStart="16dp"
            android:layout_marginEnd="16dp"
            android:layout_marginTop="24dp"
            android:layout_marginBottom="24dp"
            android:enabled="false"
            app:backgroundTint="#DE0701"
            app:cornerRadius="8dp"
            app:rippleColor="#B3000000"
            app:layout_constraintTop_toBottomOf="@id/numpad_grid"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintVertical_bias="1" />

    </androidx.constraintlayout.widget.ConstraintLayout>
</ScrollView>