@php $p = $product ?? null; @endphp
<div class="col-sm-6"><label class="form-label">Name</label><input name="name" class="form-control" required value="{{ old('name', $p->name ?? '') }}"></div>
<div class="col-sm-3"><label class="form-label">SKU</label><input name="sku" class="form-control" required value="{{ old('sku', $p->sku ?? '') }}"></div>
<div class="col-sm-3"><label class="form-label">Product Code</label><input name="product_code" class="form-control" required value="{{ old('product_code', $p->product_code ?? '') }}"></div>

<div class="col-sm-6">
    <label class="form-label">Category</label>
    <select name="category_id" class="form-select" required>
        <option value="">Select</option>
        @foreach ($categories as $c)
            <option value="{{ $c->id }}" @selected(old('category_id', $p->category_id ?? '') == $c->id)>{{ $c->name }}</option>
        @endforeach
    </select>
</div>
<div class="col-sm-6">
    <label class="form-label">Brand</label>
    <select name="brand_id" class="form-select">
        <option value="">None</option>
        @foreach ($brands as $b)
            <option value="{{ $b->id }}" @selected(old('brand_id', $p->brand_id ?? '') == $b->id)>{{ $b->name }}</option>
        @endforeach
    </select>
</div>

<div class="col-12"><label class="form-label">Description</label><textarea name="description" class="form-control">{{ old('description', $p->description ?? '') }}</textarea></div>
<div class="col-sm-6"><label class="form-label">Product Image</label><input type="file" name="image" class="form-control" accept="image/*"></div>

<div class="col-sm-3"><label class="form-label">Cost Price (₹)</label><input type="number" step="0.01" name="cost_price" class="form-control" required value="{{ old('cost_price', $p->cost_price ?? '') }}"></div>
<div class="col-sm-3"><label class="form-label">Default Selling Price (₹)</label><input type="number" step="0.01" name="default_selling_price" class="form-control" required value="{{ old('default_selling_price', $p->default_selling_price ?? '') }}"></div>

<div class="col-sm-3"><label class="form-label">Stock Qty</label><input type="number" name="stock_quantity" class="form-control" required value="{{ old('stock_quantity', $p->stock_quantity ?? 0) }}"></div>
<div class="col-sm-3"><label class="form-label">Low Stock Threshold</label><input type="number" name="low_stock_threshold" class="form-control" required value="{{ old('low_stock_threshold', $p->low_stock_threshold ?? 10) }}"></div>
<div class="col-sm-3"><label class="form-label">Min Order Qty</label><input type="number" name="min_order_quantity" class="form-control" required value="{{ old('min_order_quantity', $p->min_order_quantity ?? 1) }}"></div>
<div class="col-sm-3"><label class="form-label">Unit</label><input name="unit" class="form-control" required value="{{ old('unit', $p->unit ?? 'pcs') }}"></div>
<div class="col-sm-3"><label class="form-label">GST %</label><input type="number" step="0.01" name="tax_percent" class="form-control" required value="{{ old('tax_percent', $p->tax_percent ?? 18) }}"></div>