# UX002 — Budget Detail Walkthrough
**Sprint:** UX002  
**File modified:** `app/views/budget/detail.php`  
**Date:** July 2026  
**Status:** Complete ✅

---

## Files Modified

| File | Change Type |
|---|---|
| `app/views/budget/detail.php` | Full rewrite of view layer only — no backend, no routes, no controllers modified |

---

## Change 1 — Page header simplified and status badge added

### Before
```html
<h1 class="text-2xl font-black tracking-tight text-slate-800 flex items-center gap-2">
    <?= escape_html($expense['category_name']) ?>
</h1>
<!-- no status badge -->

<a href="..." class="... bg-indigo-550 ... text-white ...">
    <i class="fa-solid fa-pen-to-square"></i> Edit Details
</a>
<a href="..." class="... bg-white border border-slate-200 ...">
    <i class="fa-solid fa-arrow-left"></i> Back to Planner
</a>
```

### After
```html
<h1 class="text-2xl font-black ...">
    <?= escape_html($expense['name'] ?? $expense['category_name']) ?>
</h1>
<!-- status pill badge — color-coded per status -->
<span class="inline-flex items-center gap-1.5 mt-2 px-2.5 py-0.5 rounded-full text-[11px] font-semibold ...">
    <span class="w-1.5 h-1.5 rounded-full ..."></span>
    <?= escape_html($expense['status']) ?>
</span>

<!-- both header buttons now secondary style -->
<a href="..." class="... border border-slate-200 bg-white text-slate-600 hover:text-indigo-600 ...">
    <i class="fa-solid fa-arrow-left text-[10px]"></i> Back
</a>
<a href="..." class="... border border-slate-200 bg-white text-slate-600 hover:text-indigo-600 ...">
    <i class="fa-solid fa-pen text-[10px]"></i> Edit
</a>
```

**Changes:**
- "Edit Details" button: primary indigo → secondary (white/slate border)
- "Back to Planner" label → "Back"
- Both buttons now equal secondary weight
- Status pill badge added below the h1

---

## Change 2 — Budget Summary card: 2-column list → 4-cell grid with progress bar

### Before
```html
<div class="bg-white p-6 rounded-3xl border border-slate-100 shadow-sm grid grid-cols-1 md:grid-cols-2 gap-6">
    <!-- Financial Summary column -->
    <div class="space-y-3 text-xs">
        <div class="flex justify-between">
            <span class="text-slate-400 font-semibold">Budget</span>
            <span class="font-bold text-slate-700">Rp 15.000.000</span>
        </div>
        <div class="flex justify-between">
            <span class="text-slate-400 font-semibold">Deal Price</span>
            <span>—</span>
        </div>
        ...
    </div>
    <!-- Vendor column on same card -->
    ...
</div>
```

### After
```html
<!-- Separate Budget Summary card -->
<div class="bg-white rounded-2xl border border-slate-100 shadow-sm overflow-hidden">
    <!-- 4-cell grid -->
    <div class="grid grid-cols-2 md:grid-cols-4 divide-x divide-slate-100">
        <div class="p-5">
            <span class="text-[11px] text-slate-400 font-medium block mb-1">Our Budget</span>
            <strong class="text-base font-black text-slate-800 ...">Rp 15.000.000</strong>
        </div>
        <div class="p-5">
            <span class="text-[11px] text-slate-400 font-medium block mb-1">Agreed Price</span>
            <strong class="text-base font-black text-indigo-600 ...">...</strong>
        </div>
        <!-- Paid | Still to Pay -->
    </div>
    <!-- Payment progress bar -->
    <div class="px-5 pb-4">
        <div class="h-2 bg-slate-100 rounded-full overflow-hidden">
            <div class="h-full bg-indigo-500 rounded-full" style="width: XX%"></div>
        </div>
    </div>
    <!-- Due date amber banner (conditional) -->
    <?php if ($hasDueDate): ?>
    <div class="border-t ... bg-amber-50/50 px-5 py-3">
        <i class="fa-solid fa-calendar-day text-amber-400"></i>
        Next payment due: <strong>15 Aug 2026</strong>
    </div>
    <?php endif; ?>
</div>
```

**Label changes:**

| Old Label | New Label |
|---|---|
| Budget | Our Budget |
| Deal Price | Agreed Price |
| Paid | Paid |
| Remaining | Still to Pay |
| Next Payment | (moved to amber banner) |

---

## Change 3 — Vendor section: accounting rows → contact card

### Before
```html
<div class="space-y-3 text-xs">
    <div class="flex justify-between">
        <span class="text-slate-400 font-semibold">Vendor</span>
        <span class="font-bold text-slate-700">Grand Empire</span>
    </div>
    <div class="flex justify-between">
        <span class="text-slate-400 font-semibold">PIC</span>
        <span class="font-bold text-slate-700">—</span>
    </div>
    <div class="flex justify-between items-center">
        <span class="text-slate-400 font-semibold">Phone / WhatsApp</span>
        <a href="https://wa.me/..." class="px-2 py-0.5 bg-emerald-50 ... text-[9px] ...">
            <i class="fa-brands fa-whatsapp"></i> WhatsApp
        </a>
    </div>
</div>
```

### After
```html
<div class="bg-white rounded-2xl border border-slate-100 shadow-sm p-5">
    <div class="flex items-center justify-between mb-4">
        <h2 class="text-sm font-bold text-slate-700">Vendor</h2>
        <!-- WhatsApp button in card header — always visible -->
        <?php if ($hasPhone && $waLink): ?>
            <a href="https://wa.me/..." class="... bg-emerald-50 border border-emerald-150 text-emerald-700 text-xs ...">
                <i class="fa-brands fa-whatsapp"></i> WhatsApp
            </a>
        <?php endif; ?>
    </div>
    <!-- Vendor avatar + name + PIC + phone stacked -->
    <div class="flex items-start gap-4">
        <div class="w-12 h-12 bg-indigo-50 rounded-2xl flex items-center justify-center">
            <i class="fa-solid fa-store text-indigo-400 text-base"></i>
        </div>
        <div>
            <strong class="text-sm font-bold text-slate-800">Grand Empire Hotel</strong>
            <div class="flex items-center gap-1.5 text-xs text-slate-500">
                <i class="fa-solid fa-user text-[10px]"></i> Jenny
            </div>
            <div class="flex items-center gap-1.5 text-xs text-slate-500">
                <i class="fa-solid fa-phone text-[10px]"></i> +62812345678
            </div>
        </div>
    </div>
</div>
```

**When no vendor set:** empty state with "No vendor chosen yet" and link to edit.

---

## Change 4 — Notes: always-visible → conditional

### Before
```html
<!-- Always rendered, even when empty -->
<div class="bg-white p-6 rounded-3xl border border-slate-100 shadow-sm space-y-3">
    <h3 class="font-black text-slate-800 text-sm border-b border-slate-50 pb-2">Notes</h3>
    <p class="text-xs text-slate-650 leading-relaxed italic bg-slate-50 p-4 border border-slate-100 rounded-2xl">
        No notes added.   <!-- shown even when empty -->
    </p>
</div>
```

### After
```html
<?php if (!empty($expense['notes'])): ?>
<div class="bg-white rounded-2xl border border-slate-100 shadow-sm p-5">
    <h2 class="text-sm font-bold text-slate-700 mb-3">Notes</h2>
    <p class="text-sm text-slate-600 leading-relaxed whitespace-pre-wrap">...</p>
</div>
<?php endif; ?>
```

The notes card is hidden when notes are empty. This removes the "No notes added." placeholder that consumed card space for absent information.

---

## Change 5 — "Log Payment" button: secondary muted → primary indigo

### Before
```html
<button class="px-2 py-1 bg-slate-50 hover:bg-slate-100 border border-slate-200 transition-all text-[10px] font-bold text-slate-700 rounded-lg ...">
    <i class="fa-solid" :class="showPaymentForm ? 'fa-minus' : 'fa-plus'"></i> Log Payment
</button>
```

### After
```html
<button class="inline-flex items-center gap-1.5 px-3 py-1.5 rounded-xl bg-indigo-600 hover:bg-indigo-700 text-white text-xs font-bold ...">
    <i class="fa-solid" :class="showPaymentForm ? 'fa-minus' : 'fa-plus'"></i>
    <span x-text="showPaymentForm ? 'Cancel' : 'Log Payment'">Log Payment</span>
</button>
```

The button now dynamically changes its label text (not just icon) between "Log Payment" and "Cancel" using Alpine.js `x-text`.

---

## Change 6 — Payment form: field labels improved, input sizing normalized

### Before
```html
<label class="text-[9px] font-bold text-slate-500 uppercase tracking-wider block">Amount</label>
<input type="number" ... class="w-full text-xs p-2 border ...">
<label class="text-[9px] font-bold text-slate-500 uppercase tracking-wider block">Notes</label>
<input type="text" id="notes" name="notes" ...>
```

### After
```html
<label class="text-xs font-semibold text-slate-500 block">Amount paid</label>
<input type="number" ... class="w-full text-sm p-2.5 border ...">
<label class="text-xs font-semibold text-slate-500 block">Note <span class="text-slate-400 font-normal">(optional)</span></label>
<input type="text" id="pay_notes" name="notes" ...>
```

Changes:
- Labels: `text-[9px]` → `text-xs` (readable)
- Input size: `p-2 text-xs` → `p-2.5 text-sm` (touch-friendly)
- Submit button: `text-[10px] px-3 py-1.5` → full-width `py-2.5 text-xs w-full`
- Form notes field ID: `id="notes"` → `id="pay_notes"` (avoids ambiguity with expense notes section)
- "Amount" label → "Amount paid" (clearer intent)

---

## Change 7 — Payment timeline: redesigned list with hover-reveal delete

### Before
```html
<div class="relative border-l border-slate-150 pl-4 ml-1 space-y-4">
    <div class="relative text-xs leading-relaxed">
        <span class="absolute -left-[21px] top-1.5 w-2.5 h-2.5 rounded-full bg-emerald-500 border border-white"></span>
        <div class="flex justify-between items-start gap-2">
            <div>
                <strong>Rp 5.000.000</strong>
                <span class="text-[9px] text-slate-450">Deposit</span>
            </div>
            <div class="flex items-center gap-2">
                <span class="text-[9px] text-slate-400 font-bold">15 Jul</span>
                <!-- Trash icon always visible, text-[9px] -->
                <form ... onsubmit="return confirm(...)">
                    <button class="text-rose-500 hover:text-rose-700 p-1">
                        <i class="fa-solid fa-trash-can text-[9px]"></i>
                    </button>
                </form>
            </div>
        </div>
    </div>
</div>
```

### After
```html
<div class="divide-y divide-slate-50">
    <div class="px-5 py-3.5 flex items-start gap-3 group">
        <!-- Circle icon indicator -->
        <div class="w-7 h-7 rounded-full bg-emerald-100 flex items-center justify-center">
            <i class="fa-solid fa-check text-[9px] text-emerald-600"></i>
        </div>
        <!-- Payment info -->
        <div class="flex-1 min-w-0">
            <strong class="text-sm font-bold text-slate-800">Rp 5.000.000</strong>
            <span class="text-[11px] text-slate-400 block mt-0.5">15 Jul 2026 · Deposit</span>
        </div>
        <!-- Trash — hidden by default, shown on hover via group -->
        <form ... onsubmit="return confirm(...);" class="opacity-0 group-hover:opacity-100 transition-opacity">
            <button class="w-6 h-6 rounded-lg hover:bg-rose-50 text-slate-300 hover:text-rose-400">
                <i class="fa-solid fa-trash-can text-[9px]"></i>
            </button>
        </form>
    </div>
</div>

<!-- Running total footer -->
<div class="px-5 py-3.5 bg-slate-50 border-t border-slate-100 flex items-center justify-between">
    <span class="text-xs text-slate-500 font-medium">Total paid</span>
    <strong class="text-sm font-black text-emerald-600">Rp 5.000.000</strong>
</div>
```

Key improvements:
- Trash icon hidden at rest, revealed on hover — no visual clutter on each row
- Running total shown at the bottom of the list
- Date format extended to include year (`15 Jul 2026`, not just `15 Jul`)
- Notes appended inline after date with `·` separator

---

## Change 8 — Payment section empty state added

### Before
```html
<div class="text-center py-6 text-slate-400 text-xs">
    No payments recorded.
</div>
```

### After
```html
<div class="px-5 py-10 text-center">
    <div class="inline-flex items-center justify-center w-10 h-10 bg-slate-50 rounded-xl mb-3">
        <i class="fa-solid fa-receipt text-slate-300 text-base"></i>
    </div>
    <p class="text-sm text-slate-400 font-medium">No payments yet</p>
    <p class="text-xs text-slate-300 mt-0.5">Tap "Log Payment" to record one.</p>
</div>
```

---

## Variables Used (No Backend Changes)

All values used by the improved view were already passed by `showExpense()`:

| Variable | Source | Used For |
|---|---|---|
| `$expense` | Controller | All expense fields incl. status, name, vendor, notes, due_date |
| `$payments` | Controller | Payment timeline |
| `$total_paid` | Controller | Budget Summary grid, progress bar |
| `$remaining_balance` | Controller | "Still to Pay" cell |
| `$summary` | Controller | Currency |

New derived booleans computed in view only (no queries):
```php
$hasVendor  = !empty($expense['vendor_name']);
$hasPic     = !empty($expense['vendor_pic']);
$hasPhone   = !empty($expense['vendor_phone']);
$isFullyPaid = $target > 0 && $total_paid >= $target;
$hasDueDate  = !empty($expense['due_date']);
```

---

## Verification

### PHP Syntax
```
> C:\xampp\php\php.exe -l app/views/budget/detail.php
No syntax errors detected in app/views/budget/detail.php
```
✅ **PASS**

### Responsive Layout
| Breakpoint | Budget Summary Grid | Vendor Card | Payment Panel |
|---|---|---|---|
| Mobile (< md) | 2-column (2×2) | Single column | Full width |
| Tablet (md) | 4-column | Single column | Full width |
| Desktop (lg+) | 4-column | Left col (span-2) | Right col (span-1) |

Grid classes: `grid-cols-2 md:grid-cols-4` for summary; `grid-cols-1 lg:grid-cols-3` for main layout — identical to original main grid breakpoints.

### Button Audit
| Button | Before | After |
|---|---|---|
| Edit Details | Primary indigo | Secondary (slate border) |
| Back to Planner | Secondary | Secondary (shortened label) |
| Log Payment | Tiny muted slate | Primary indigo, full label |
| WhatsApp | `text-[9px]` badge in table row | `text-xs` button in vendor card header |
| Delete payment | Always visible trash `text-[9px]` | Hover-reveal, 26px touch target |
| Save (payment form) | `px-3 py-1.5 text-[10px]` | Full-width `py-2.5 text-xs` |

### Scope Check
| File | Modified? |
|---|---|
| `app/views/budget/detail.php` | ✅ Yes — only this file |
| `app/views/budget/dashboard.php` | ❌ Not touched |
| `app/views/budget/settings.php` | ❌ Not touched |
| `app/modules/Budget/BudgetController.php` | ❌ Not touched |
| `app/modules/Budget/BudgetModel.php` | ❌ Not touched |
| `routes/*.php` | ❌ Not touched |
| `app/views/timeline/*.php` | ❌ Not touched |

---

## Summary of All Changes

| # | What Changed | Why |
|---|---|---|
| 1 | Budget Summary promoted to dedicated full-width card | Answers core questions first — hierarchy |
| 2 | 2-column accounting list → 4-cell grid | Scannable at a glance |
| 3 | "Deal Price" → "Agreed Price" | Natural language |
| 4 | "Remaining" → "Still to Pay" | Active, unambiguous |
| 5 | "Fully Paid ✓" shown when balance = 0 | Positive feedback, closure |
| 6 | Payment progress bar added | Visual payment health |
| 7 | Due date → amber banner below summary | Time-sensitive — visually distinct |
| 8 | Financial + Vendor separated into own cards | Clear information grouping |
| 9 | Vendor section → contact card with avatar | Relational, not administrative |
| 10 | WhatsApp button moved to Vendor card header | Primary action, always visible |
| 11 | Empty state for no vendor | Guides user to Edit |
| 12 | Notes card hidden when empty | Removes empty-state clutter |
| 13 | Notes rendered with `whitespace-pre-wrap` | Preserves line breaks |
| 14 | "Log Payment" → primary indigo button | Matches its importance as primary action |
| 15 | Button label toggles "Log Payment / Cancel" | Clearer interaction state |
| 16 | Form labels: `text-[9px]` → `text-xs` | Readable |
| 17 | Form inputs: larger touch targets | Mobile-friendly |
| 18 | Payment timeline: divide-y rows | Cleaner than left-border |
| 19 | Delete button: hover-reveal | Removes trash icon clutter |
| 20 | Payment date: `15 Jul` → `15 Jul 2026` | Unambiguous |
| 21 | Running payment total footer added | Quick cumulative reference |
| 22 | Payment empty state improved | Guides user to Log Payment |
| 23 | Status pill badge added to header | Page-level status at a glance |
| 24 | "Edit Details" → "Edit" (secondary) | Correct weight, concise label |
| 25 | "Back to Planner" → "Back" | Concise |
