# Phase 18 - UI Polish and Mobile Responsiveness

This phase improves the overall interface so the POS is easier to use on desktops, tablets, and phones.

## Added

- Responsive sidebar drawer for tablet/mobile screens
- Mobile bottom navigation for common pages
- Active navigation highlighting
- Improved spacing, rounded controls, and smoother card hover effects
- Automatic responsive wrappers for tables
- Updated asset paths to use `APP_BASE_PATH`
- Updated README setup references for `pos_phase_18`

## Files Updated

```text
config/app.php
includes/header.php
includes/navbar.php
includes/sidebar.php
includes/footer.php
assets/css/app.css
assets/js/app.js
README.md
database/phase_18_schema.sql
```

## Mobile Behavior

On smaller screens:

- The sidebar becomes a slide-out drawer.
- A menu button appears in the topbar.
- A bottom navigation bar gives quick access to Dashboard, POS, Products, and Sales.
- Tables scroll horizontally instead of breaking the layout.

## Setup

Place the folder in XAMPP:

```text
C:\xampp\htdocs\pos_phase_18
```

Create database:

```sql
CREATE DATABASE pos_system;
```

Import:

```text
database/phase_18_schema.sql
```

Open:

```text
http://localhost/pos_phase_18
```

## Default Login

```text
Username: admin
Password: admin123
```

## Testing Checklist

- Open Dashboard on desktop and mobile width.
- Tap the mobile menu button and confirm the sidebar opens.
- Tap outside the sidebar and confirm it closes.
- Confirm bottom navigation links work.
- Open Products/Sales pages and confirm tables scroll on phone width.
- Print a receipt and confirm print CSS still hides the sidebar/topbar.

## Notes

This phase does not change the business logic. It focuses on layout, usability, and responsiveness.
