KasirApp-Kelompok5/app/src/main/res/layout/activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout 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"
    tools:context=".MainActivity">

    <!-- Header -->
    <RelativeLayout
        android:id="@+id/header"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:background="?attr/colorPrimary"
        android:padding="16dp"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintEnd_toEndOf="parent">

        <LinearLayout
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentStart="true"
            android:layout_centerVertical="true"
            android:orientation="vertical">

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="🛒 KASIR APP"
                android:textColor="@android:color/white"
                android:textSize="24sp"
                android:textStyle="bold" />

            <TextView
                android:id="@+id/subtitle_text"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="Selamat datang, Kasir!"
                android:textColor="@android:color/white" />
        </LinearLayout>

        <Button
            android:id="@+id/btn_logout"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentEnd="true"
            android:layout_centerVertical="true"
            android:text="LOGOUT"
            app:backgroundTint="@android:color/holo_red_light" />

    </RelativeLayout>

    <!-- Search Bar -->
    <EditText
        android:id="@+id/et_search_menu"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_margin="16dp"
        android:hint="Cari menu..."
        android:inputType="text"
        android:padding="12dp"
        android:background="@drawable/edit_text_background"
        app:layout_constraintTop_toBottomOf="@id/header"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintEnd_toEndOf="parent" />

    <!-- Cart Section (This will always be at the bottom) -->
    <LinearLayout
        android:id="@+id/cart_section"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:background="#F5F5F5"
        android:orientation="vertical"
        android:padding="16dp"
        android:elevation="8dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintEnd_toEndOf="parent">

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="🛒 KERANJANG"
            android:textAppearance="@android:style/TextAppearance.Large"
            android:textColor="@android:color/black"
            android:textStyle="bold"/>

        <TextView
            android:id="@+id/empty_cart_text"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:gravity="center"
            android:padding="16dp"
            android:text="Keranjang masih kosong" />

        <androidx.recyclerview.widget.RecyclerView
            android:id="@+id/rv_cart"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:maxHeight="120dp"
            app:layout_constrainedHeight="true"
            tools:listitem="@layout/item_cart"
            tools:itemCount="2" />

        <!-- Bottom Buttons and Total -->
        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="8dp"
            android:orientation="horizontal">

            <Button
                android:id="@+id/btn_dine_in"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_marginEnd="4dp"
                android:layout_weight="1"
                app:backgroundTint="@android:color/holo_blue_dark"
                android:text="DINE-IN" />

            <Button
                android:id="@+id/btn_takeaway"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_marginStart="4dp"
                android:layout_weight="1"
                app:backgroundTint="@android:color/darker_gray"
                android:text="TAKEAWAY" />
        </LinearLayout>

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:gravity="center_vertical"
            android:orientation="horizontal"
            android:paddingTop="8dp"
            android:paddingBottom="8dp">

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="TOTAL:"
                android:textAppearance="@android:style/TextAppearance.Large"
                android:textColor="@android:color/black" />

            <TextView
                android:id="@+id/total_text"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:gravity="end"
                android:text="Rp 0"
                android:textAppearance="@android:style/TextAppearance.Large"
                android:textColor="@android:color/holo_green_dark" />
        </LinearLayout>

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="horizontal">

            <Button
                android:id="@+id/btn_clear_cart"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_marginEnd="8dp"
                android:layout_weight="1"
                app:backgroundTint="@android:color/holo_red_light"
                android:text="HAPUS SEMUA" />

            <Button
                android:id="@+id/btn_checkout"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_marginStart="8dp"
                android:layout_weight="1"
                app:backgroundTint="@android:color/holo_green_dark"
                android:text="BAYAR" />
        </LinearLayout>

    </LinearLayout>

    <!-- Product List -->
    <androidx.recyclerview.widget.RecyclerView
        android:id="@+id/rv_products"
        android:layout_width="0dp"
        android:layout_height="0dp"
        android:padding="16dp"
        app:layout_constraintTop_toBottomOf="@id/et_search_menu"
        app:layout_constraintBottom_toTopOf="@id/cart_section"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintEnd_toEndOf="parent" />

</androidx.constraintlayout.widget.ConstraintLayout>