{{-- Sticky totals card. Vars: $doc (model, for defaults). Data hooks: [name=discount] [name=tax_percent] [data-total=sub|disc|tax|grand] --}}
@php $cur = config('infotics.currency', 'PKR'); @endphp
<div class="ac-sum">
  <h2>Summary</h2>
  <div class="ac-sum-row"><span>Subtotal</span><b><span data-total="sub">0.00</span></b></div>
  <div class="ac-sum-row"><label for="ac-discount">Discount ({{ $cur }})</label><input class="input {{ $errors->has('discount') ? 'is-invalid' : '' }}" id="ac-discount" type="number" name="discount" min="0" step="0.01" value="{{ old('discount', (float) ($doc->discount ?? 0)) }}"></div>
  @error('discount')<div class="field-error">{{ $message }}</div>@enderror
  <div class="ac-sum-row"><label for="ac-tax">Tax rate (%)</label><input class="input {{ $errors->has('tax_percent') ? 'is-invalid' : '' }}" id="ac-tax" type="number" name="tax_percent" min="0" max="100" step="0.01" value="{{ old('tax_percent', (float) ($doc->tax_percent ?? 0)) }}"></div>
  @error('tax_percent')<div class="field-error">{{ $message }}</div>@enderror
  <div class="ac-sum-row"><span>Tax</span><b><span data-total="tax">0.00</span></b></div>
  <div class="ac-sum-total"><span>Total ({{ $cur }})</span><b data-total="grand">0.00</b></div>
  <p class="ac-hint">Tax is charged on (subtotal − discount). This preview matches the figures printed on the PDF and email.</p>
</div>