Add smart install prompt for supported browsers

src/PowderCoating.Application/DTOs/Inventory/InventoryDtos.cs

@@ -17,6 +17,7 @@ public class InventoryItemDto
     public string? Manufacturer { get; set; }
     public string? ManufacturerPartNumber { get; set; }
     public decimal? CoverageSqFtPerLb { get; set; }
+    public decimal? SpecificGravity { get; set; }
     public decimal? TransferEfficiency { get; set; }
     public int? CureTemperatureF { get; set; }
     public int? CureTimeMinutes { get; set; }
@@ -125,6 +126,10 @@ public class CreateInventoryItemDto
     [Display(Name = "Coverage (Sq Ft/Lb)")]
     public decimal? CoverageSqFtPerLb { get; set; }
 
+    [Range(0, 100, ErrorMessage = "Specific gravity must be between 0 and 100")]
+    [Display(Name = "Specific Gravity")]
+    public decimal? SpecificGravity { get; set; }
+
     [Range(0, 100, ErrorMessage = "Transfer efficiency must be between 0 and 100%")]
     [Display(Name = "Transfer Efficiency (%)")]
     public decimal? TransferEfficiency { get; set; }

src/PowderCoating.Application/DTOs/Inventory/PowderCatalogDtos.cs

@@ -23,6 +23,7 @@ public class PowderCatalogLookupResult
     public string? ColorFamilies { get; set; }
     public bool? RequiresClearCoat { get; set; }
     public decimal? CoverageSqFtPerLb { get; set; }
+    public decimal? SpecificGravity { get; set; }
     public decimal? TransferEfficiency { get; set; }
 }
 

src/PowderCoating.Core/Entities/InventoryItem.cs

@@ -20,6 +20,7 @@ public class InventoryItem : BaseEntity
     public string? Manufacturer { get; set; }
     public string? ManufacturerPartNumber { get; set; }
     public decimal? CoverageSqFtPerLb { get; set; } // Square feet coverage per pound (default 30)
+    public decimal? SpecificGravity { get; set; } // Powder specific gravity from the technical data sheet
     public decimal? TransferEfficiency { get; set; } // Percentage of powder that sticks (default 65%)
     public decimal? CureTemperatureF { get; set; } // Required cure temperature in °F (recommended for oven scheduling)
     public int? CureTimeMinutes { get; set; } // Required hold time at cure temperature

src/PowderCoating.Core/Entities/PowderCatalogItem.cs

@@ -52,6 +52,9 @@ public class PowderCatalogItem
     /// <summary>Theoretical coverage in sq ft per pound. Typical 80–120.</summary>
     public decimal? CoverageSqFtPerLb { get; set; }
 
+    /// <summary>Specific gravity from the TDS. Used to derive theoretical coverage when needed.</summary>
+    public decimal? SpecificGravity { get; set; }
+
     /// <summary>Powder transfer efficiency percentage. Typical 60–75%.</summary>
     public decimal? TransferEfficiency { get; set; }
 

src/PowderCoating.Infrastructure/Migrations/20260506123541_AddSpecificGravityToPowderCatalogAndInventory.cs

@@ -0,0 +1,81 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace PowderCoating.Infrastructure.Migrations
+{
+    /// <inheritdoc />
+    public partial class AddSpecificGravityToPowderCatalogAndInventory : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AddColumn<decimal>(
+                name: "SpecificGravity",
+                table: "PowderCatalogItems",
+                type: "decimal(18,2)",
+                nullable: true);
+
+            migrationBuilder.AddColumn<decimal>(
+                name: "SpecificGravity",
+                table: "InventoryItems",
+                type: "decimal(18,2)",
+                nullable: true);
+
+            migrationBuilder.UpdateData(
+                table: "PricingTiers",
+                keyColumn: "Id",
+                keyValue: 1,
+                column: "CreatedAt",
+                value: new DateTime(2026, 5, 6, 12, 35, 37, 694, DateTimeKind.Utc).AddTicks(5288));
+
+            migrationBuilder.UpdateData(
+                table: "PricingTiers",
+                keyColumn: "Id",
+                keyValue: 2,
+                column: "CreatedAt",
+                value: new DateTime(2026, 5, 6, 12, 35, 37, 694, DateTimeKind.Utc).AddTicks(5294));
+
+            migrationBuilder.UpdateData(
+                table: "PricingTiers",
+                keyColumn: "Id",
+                keyValue: 3,
+                column: "CreatedAt",
+                value: new DateTime(2026, 5, 6, 12, 35, 37, 694, DateTimeKind.Utc).AddTicks(5296));
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropColumn(
+                name: "SpecificGravity",
+                table: "PowderCatalogItems");
+
+            migrationBuilder.DropColumn(
+                name: "SpecificGravity",
+                table: "InventoryItems");
+
+            migrationBuilder.UpdateData(
+                table: "PricingTiers",
+                keyColumn: "Id",
+                keyValue: 1,
+                column: "CreatedAt",
+                value: new DateTime(2026, 5, 6, 2, 7, 22, 625, DateTimeKind.Utc).AddTicks(2199));
+
+            migrationBuilder.UpdateData(
+                table: "PricingTiers",
+                keyColumn: "Id",
+                keyValue: 2,
+                column: "CreatedAt",
+                value: new DateTime(2026, 5, 6, 2, 7, 22, 625, DateTimeKind.Utc).AddTicks(2206));
+
+            migrationBuilder.UpdateData(
+                table: "PricingTiers",
+                keyColumn: "Id",
+                keyValue: 3,
+                column: "CreatedAt",
+                value: new DateTime(2026, 5, 6, 2, 7, 22, 625, DateTimeKind.Utc).AddTicks(2208));
+        }
+    }
+}

src/PowderCoating.Infrastructure/Migrations/ApplicationDbContextModelSnapshot.cs

@@ -3332,6 +3332,9 @@ namespace PowderCoating.Infrastructure.Migrations
                     b.Property<string>("SpecPageUrl")
                         .HasColumnType("nvarchar(max)");
 
+                    b.Property<decimal?>("SpecificGravity")
+                        .HasColumnType("decimal(18,2)");
+
                     b.Property<string>("TdsUrl")
                         .HasColumnType("nvarchar(max)");
 
@@ -5835,6 +5838,9 @@ namespace PowderCoating.Infrastructure.Migrations
                         .IsRequired()
                         .HasColumnType("nvarchar(450)");
 
+                    b.Property<decimal?>("SpecificGravity")
+                        .HasColumnType("decimal(18,2)");
+
                     b.Property<string>("TdsUrl")
                         .HasColumnType("nvarchar(max)");
 
@@ -6053,7 +6059,7 @@ namespace PowderCoating.Infrastructure.Migrations
                         {
                             Id = 1,
                             CompanyId = 0,
-                            CreatedAt = new DateTime(2026, 5, 6, 2, 7, 22, 625, DateTimeKind.Utc).AddTicks(2199),
+                            CreatedAt = new DateTime(2026, 5, 6, 12, 35, 37, 694, DateTimeKind.Utc).AddTicks(5288),
                             Description = "Standard pricing for regular customers",
                             DiscountPercent = 0m,
                             IsActive = true,
@@ -6064,7 +6070,7 @@ namespace PowderCoating.Infrastructure.Migrations
                         {
                             Id = 2,
                             CompanyId = 0,
-                            CreatedAt = new DateTime(2026, 5, 6, 2, 7, 22, 625, DateTimeKind.Utc).AddTicks(2206),
+                            CreatedAt = new DateTime(2026, 5, 6, 12, 35, 37, 694, DateTimeKind.Utc).AddTicks(5294),
                             Description = "5% discount for preferred customers",
                             DiscountPercent = 5m,
                             IsActive = true,
@@ -6075,7 +6081,7 @@ namespace PowderCoating.Infrastructure.Migrations
                         {
                             Id = 3,
                             CompanyId = 0,
-                            CreatedAt = new DateTime(2026, 5, 6, 2, 7, 22, 625, DateTimeKind.Utc).AddTicks(2208),
+                            CreatedAt = new DateTime(2026, 5, 6, 12, 35, 37, 694, DateTimeKind.Utc).AddTicks(5296),
                             Description = "10% discount for premium customers",
                             DiscountPercent = 10m,
                             IsActive = true,

src/PowderCoating.Infrastructure/Services/InventoryAiLookupService.cs

@@ -28,7 +28,8 @@ namespace PowderCoating.Infrastructure.Services;
 public class InventoryAiLookupService : IInventoryAiLookupService
 {
     private const decimal DefaultTransferEfficiency = 65m;
-    private const decimal TheoreticalCoverageAtOneMilFactor = 192.3m;
+    private const decimal TheoreticalCoverageConstant = 192.3m;
+    private const decimal DefaultCoverageThicknessMils = 1.5m;
 
     private readonly IConfiguration _config;
     private readonly IHttpClientFactory _httpClientFactory;
@@ -1247,7 +1248,7 @@ Rules:
 
         if (!result.CoverageSqFtPerLb.HasValue && result.SpecificGravity is > 0)
         {
-            var calculatedCoverage = TheoreticalCoverageAtOneMilFactor / result.SpecificGravity.Value;
+            var calculatedCoverage = TheoreticalCoverageConstant / (result.SpecificGravity.Value * DefaultCoverageThicknessMils);
             result.CoverageSqFtPerLb = Math.Round(calculatedCoverage, 2, MidpointRounding.AwayFromZero);
         }
     }

src/PowderCoating.Web/Controllers/InventoryController.cs

@@ -747,6 +747,7 @@ public class InventoryController : Controller
             if (match.ColorFamilies      != null) result.ColorFamilies      = match.ColorFamilies;
             if (match.RequiresClearCoat  != null) result.RequiresClearCoat  = match.RequiresClearCoat;
             if (match.CoverageSqFtPerLb  != null) result.CoverageSqFtPerLb  = match.CoverageSqFtPerLb;
+            if (match.SpecificGravity    != null) result.SpecificGravity    = match.SpecificGravity;
             result.TransferEfficiency ??= GetEffectiveTransferEfficiency(match.TransferEfficiency);
             // URL / price fields: fill gaps only — AI may have found something better
             result.ImageUrl    ??= match.ImageUrl;
@@ -777,6 +778,7 @@ public class InventoryController : Controller
                 ColorFamilies      = result.ColorFamilies,
                 RequiresClearCoat  = result.RequiresClearCoat,
                 CoverageSqFtPerLb  = result.CoverageSqFtPerLb,
+                SpecificGravity    = result.SpecificGravity,
                 TransferEfficiency = GetEffectiveTransferEfficiency(result.TransferEfficiency),
                 ImageUrl           = result.ImageUrl,
                 ProductUrl         = result.SpecPageUrl,
@@ -875,6 +877,7 @@ public class InventoryController : Controller
                         aiResult.CureTimeMinutes        ??= full.CureTimeMinutes;
                         aiResult.RequiresClearCoat      ??= full.RequiresClearCoat;
                         aiResult.CoverageSqFtPerLb      ??= full.CoverageSqFtPerLb;
+                        aiResult.SpecificGravity        ??= full.SpecificGravity;
                         aiResult.TransferEfficiency     ??= GetEffectiveTransferEfficiency(full.TransferEfficiency);
                         aiResult.ManufacturerPartNumber ??= full.ManufacturerPartNumber;
                         aiResult.ColorName              ??= full.ColorName;
@@ -954,6 +957,7 @@ public class InventoryController : Controller
             colorFamilies          = aiResult.ColorFamilies,
             requiresClearCoat      = aiResult.RequiresClearCoat,
             coverageSqFtPerLb      = aiResult.CoverageSqFtPerLb,
+            specificGravity        = aiResult.SpecificGravity,
             transferEfficiency     = aiResult.TransferEfficiency ?? DefaultTransferEfficiency,
             unitPrice              = aiResult.UnitCostPerLb ?? 0m,
             imageUrl               = aiResult.ImageUrl,
@@ -1106,6 +1110,7 @@ public class InventoryController : Controller
                 colorFamilies = p.ColorFamilies,
                 requiresClearCoat = p.RequiresClearCoat,
                 coverageSqFtPerLb = p.CoverageSqFtPerLb,
+                specificGravity = p.SpecificGravity,
                 transferEfficiency = GetEffectiveTransferEfficiency(p.TransferEfficiency)
             })
             .ToList();

src/PowderCoating.Web/Controllers/PowderCatalogController.cs

@@ -181,6 +181,7 @@ public class PowderCatalogController : Controller
             ColorFamilies = NullIfWhiteSpace(model.ColorFamilies),
             RequiresClearCoat = model.RequiresClearCoat,
             CoverageSqFtPerLb = model.CoverageSqFtPerLb,
+            SpecificGravity = model.SpecificGravity,
             TransferEfficiency = model.TransferEfficiency,
             IsDiscontinued = model.IsDiscontinued,
             IsUserContributed = model.IsUserContributed,
@@ -250,6 +251,7 @@ public class PowderCatalogController : Controller
         entity.ColorFamilies = NullIfWhiteSpace(model.ColorFamilies);
         entity.RequiresClearCoat = model.RequiresClearCoat;
         entity.CoverageSqFtPerLb = model.CoverageSqFtPerLb;
+        entity.SpecificGravity = model.SpecificGravity;
         entity.TransferEfficiency = model.TransferEfficiency;
         entity.IsDiscontinued = model.IsDiscontinued;
         entity.IsUserContributed = model.IsUserContributed;
@@ -412,6 +414,7 @@ public class PowderCatalogController : Controller
                 TdsUrl = p.TdsUrl,
                 ApplicationGuideUrl = p.ApplicationGuideUrl,
                 ProductUrl = p.ProductUrl,
+                SpecificGravity = p.SpecificGravity,
                 IsDiscontinued = p.IsDiscontinued
             })
             .ToList();
@@ -661,6 +664,7 @@ public class PowderCatalogController : Controller
             ColorFamilies = item.ColorFamilies,
             RequiresClearCoat = item.RequiresClearCoat,
             CoverageSqFtPerLb = item.CoverageSqFtPerLb,
+            SpecificGravity = item.SpecificGravity,
             TransferEfficiency = GetEffectiveTransferEfficiency(item.TransferEfficiency),
             IsDiscontinued = item.IsDiscontinued,
             IsUserContributed = item.IsUserContributed,

src/PowderCoating.Web/ViewModels/PowderCatalog/PowderCatalogFormViewModel.cs

@@ -69,6 +69,10 @@ public class PowderCatalogFormViewModel
     [Display(Name = "Coverage (Sq Ft / Lb)")]
     public decimal? CoverageSqFtPerLb { get; set; }
 
+    [Range(0, 100)]
+    [Display(Name = "Specific Gravity")]
+    public decimal? SpecificGravity { get; set; }
+
     [Range(0, 100)]
     [Display(Name = "Transfer Efficiency (%)")]
     public decimal? TransferEfficiency { get; set; }

src/PowderCoating.Web/Views/Inventory/Create.cshtml

@@ -159,21 +159,35 @@
                                     </button>
                                 </div>
                             </div>
-                            <div class="col-md-6" id="wrap-coverage">
+                            <div class="col-md-4" id="wrap-coverage">
                                 <div class="d-flex align-items-center gap-1 mb-1">
                                     <label asp-for="CoverageSqFtPerLb" class="form-label mb-0">Coverage (@ViewBag.CoverageUnit)</label>
                                     <a tabindex="0" class="help-icon" role="button"
                                        data-bs-toggle="popover" data-bs-placement="right" data-bs-trigger="focus"
                                        data-bs-title="Coverage"
-                                       data-bs-content="How many square feet one pound of this powder covers at a standard film thickness. Industry average is about 30 sq ft/lb. Check the manufacturer's technical data sheet for the exact value. This is used together with Transfer Efficiency to calculate how much powder to order for a job.">
+                                       data-bs-content="Manufacturer theoretical coverage for this powder, typically based on about 1.5 mil film thickness. Many powders land around 70 to 120 sq ft/lb. Used together with Transfer Efficiency to calculate how much powder to order for a job.">
                                         <i class="bi bi-question-circle"></i>
                                     </a>
                                 </div>
-                                <input asp-for="CoverageSqFtPerLb" type="number" step="0.01" min="0" value="30" class="form-control" id="field-coverage" placeholder="30" />
+                                <input asp-for="CoverageSqFtPerLb" type="number" step="0.01" min="0" value="30" class="form-control" id="field-coverage" placeholder="e.g., 78" />
                                 <span asp-validation-for="CoverageSqFtPerLb" class="text-danger"></span>
-                                <small class="form-text text-muted">Surface area coverage per unit of weight (default: 30)</small>
+                                <small class="form-text text-muted">Theoretical coverage from the TDS, usually expressed in sq ft/lb</small>
                             </div>
-                            <div class="col-md-6" id="wrap-transfer">
+                            <div class="col-md-4" id="wrap-specificgravity">
+                                <div class="d-flex align-items-center gap-1 mb-1">
+                                    <label asp-for="SpecificGravity" class="form-label mb-0">Specific Gravity</label>
+                                    <a tabindex="0" class="help-icon" role="button"
+                                       data-bs-toggle="popover" data-bs-placement="right" data-bs-trigger="focus"
+                                       data-bs-title="Specific Gravity"
+                                       data-bs-content="Specific gravity from the powder's technical data sheet. This is useful reference data on its own and can also be used to derive theoretical coverage when the TDS omits a direct coverage number.">
+                                        <i class="bi bi-question-circle"></i>
+                                    </a>
+                                </div>
+                                <input asp-for="SpecificGravity" type="number" step="0.01" min="0" class="form-control" id="field-specificgravity" placeholder="e.g., 1.65" />
+                                <span asp-validation-for="SpecificGravity" class="text-danger"></span>
+                                <small class="form-text text-muted">Store the TDS specific gravity for future reference and calculations</small>
+                            </div>
+                            <div class="col-md-4" id="wrap-transfer">
                                 <div class="d-flex align-items-center gap-1 mb-1">
                                     <label asp-for="TransferEfficiency" class="form-label mb-0">Transfer Efficiency (%)</label>
                                     <a tabindex="0" class="help-icon" role="button"

src/PowderCoating.Web/Views/Inventory/Edit.cshtml

@@ -161,21 +161,35 @@
                                     </button>
                                 </div>
                             </div>
-                            <div class="col-md-6" id="wrap-coverage">
+                            <div class="col-md-4" id="wrap-coverage">
                                 <div class="d-flex align-items-center gap-1 mb-1">
                                     <label asp-for="CoverageSqFtPerLb" class="form-label mb-0">Coverage (@ViewBag.CoverageUnit)</label>
                                     <a tabindex="0" class="help-icon" role="button"
                                        data-bs-toggle="popover" data-bs-placement="right" data-bs-trigger="focus"
                                        data-bs-title="Coverage"
-                                       data-bs-content="How many square feet one pound covers at a standard film thickness. Industry average is about 30 sq ft/lb — check the manufacturer's tech data sheet for the exact figure. Used together with Transfer Efficiency to calculate powder to order for each job.">
+                                       data-bs-content="Manufacturer theoretical coverage for this powder, typically based on about 1.5 mil film thickness. Many powders land around 70 to 120 sq ft/lb. Used together with Transfer Efficiency to calculate powder to order for each job.">
                                         <i class="bi bi-question-circle"></i>
                                     </a>
                                 </div>
-                                <input asp-for="CoverageSqFtPerLb" type="number" step="0.01" min="0" class="form-control" id="field-coverage" placeholder="30" />
+                                <input asp-for="CoverageSqFtPerLb" type="number" step="0.01" min="0" class="form-control" id="field-coverage" placeholder="e.g., 78" />
                                 <span asp-validation-for="CoverageSqFtPerLb" class="text-danger"></span>
-                                <small class="form-text text-muted">Surface area coverage per unit of weight (default: 30)</small>
+                                <small class="form-text text-muted">Theoretical coverage from the TDS, usually expressed in sq ft/lb</small>
                             </div>
-                            <div class="col-md-6" id="wrap-transfer">
+                            <div class="col-md-4" id="wrap-specificgravity">
+                                <div class="d-flex align-items-center gap-1 mb-1">
+                                    <label asp-for="SpecificGravity" class="form-label mb-0">Specific Gravity</label>
+                                    <a tabindex="0" class="help-icon" role="button"
+                                       data-bs-toggle="popover" data-bs-placement="right" data-bs-trigger="focus"
+                                       data-bs-title="Specific Gravity"
+                                       data-bs-content="Specific gravity from the powder's technical data sheet. This is useful reference data on its own and can also be used to derive theoretical coverage when the TDS omits a direct coverage number.">
+                                        <i class="bi bi-question-circle"></i>
+                                    </a>
+                                </div>
+                                <input asp-for="SpecificGravity" type="number" step="0.01" min="0" class="form-control" id="field-specificgravity" placeholder="e.g., 1.65" />
+                                <span asp-validation-for="SpecificGravity" class="text-danger"></span>
+                                <small class="form-text text-muted">Store the TDS specific gravity for future reference and calculations</small>
+                            </div>
+                            <div class="col-md-4" id="wrap-transfer">
                                 <div class="d-flex align-items-center gap-1 mb-1">
                                     <label asp-for="TransferEfficiency" class="form-label mb-0">Transfer Efficiency (%)</label>
                                     <a tabindex="0" class="help-icon" role="button"

src/PowderCoating.Web/Views/Inventory/_InventoryColorFamilyScripts.cshtml

@@ -48,7 +48,7 @@
         return catId && coatingMap[String(catId)] === true;
     }
 
-    const coatingOnlyFields = ['wrap-colorname', 'wrap-colorcode', 'wrap-finish', 'wrap-coverage', 'wrap-transfer'];
+    const coatingOnlyFields = ['wrap-colorname', 'wrap-colorcode', 'wrap-finish', 'wrap-coverage', 'wrap-specificgravity', 'wrap-transfer'];
     const colorNameLabel = document.querySelector('#wrap-colorname label');
 
     function updateCoatingVisibility(catId) {
@@ -403,6 +403,7 @@
             // Product details
             fillIf('field-finish',    data.finish,              'Finish');
             fillIf('field-coverage',  data.coverageSqFtPerLb,   'Coverage');
+            fillIf('field-specificgravity', data.specificGravity, 'Specific Gravity');
             fillIf('field-transfer',  data.transferEfficiency,  'Transfer Efficiency');
 
             // Coating specs

src/PowderCoating.Web/Views/PowderCatalog/_Form.cshtml

@@ -84,6 +84,11 @@
         <input asp-for="CoverageSqFtPerLb" class="form-control" id="field-coverage" />
         <span asp-validation-for="CoverageSqFtPerLb" class="text-danger small"></span>
     </div>
+    <div class="col-md-3">
+        <label asp-for="SpecificGravity" class="form-label fw-medium"></label>
+        <input asp-for="SpecificGravity" class="form-control" id="field-specificgravity" />
+        <span asp-validation-for="SpecificGravity" class="text-danger small"></span>
+    </div>
     <div class="col-md-3">
         <label asp-for="TransferEfficiency" class="form-label fw-medium"></label>
         <input asp-for="TransferEfficiency" class="form-control" id="field-transfer" />

src/PowderCoating.Web/Views/Shared/_Layout.cshtml

@@ -351,6 +351,17 @@
             gap: 1rem;
         }
 
+        .install-app-btn {
+            display: inline-flex;
+            align-items: center;
+            gap: 0.45rem;
+            white-space: nowrap;
+        }
+
+        .install-app-btn i {
+            font-size: 0.95rem;
+        }
+
         .user-avatar {
             width: 40px;
             height: 40px;
@@ -627,6 +638,10 @@
             .stat-card i {
                 font-size: 1.25rem !important;
             }
+
+            .install-app-btn .install-label {
+                display: none;
+            }
         }
 
         /* Loading States */
@@ -1434,6 +1449,12 @@
             </div>
 
             <div class="user-menu">
+                <button type="button" class="btn btn-outline-primary btn-sm install-app-btn d-none"
+                        id="installAppBtn" aria-label="Install app">
+                    <i class="bi bi-download"></i>
+                    <span class="install-label">Install App</span>
+                </button>
+
                 <!-- Theme toggle -->
                 <button type="button" class="pcl-theme-toggle"
                         data-theme-toggle aria-pressed="false" aria-label="Toggle dark mode">
@@ -2140,6 +2161,32 @@
     </div>
     <script src="~/js/quick-add.js" asp-append-version="true"></script>
     <script src="~/js/theme-toggle.js" asp-append-version="true"></script>
+    <script src="~/js/install-app.js" asp-append-version="true"></script>
+
+    <div class="modal fade" id="installHelpModal" tabindex="-1" aria-labelledby="installHelpModalLabel" aria-hidden="true">
+        <div class="modal-dialog modal-dialog-centered">
+            <div class="modal-content border-0 shadow-lg">
+                <div class="modal-header">
+                    <h5 class="modal-title fw-semibold" id="installHelpModalLabel">Install App</h5>
+                    <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
+                </div>
+                <div class="modal-body">
+                    <div class="d-flex gap-3">
+                        <div class="fs-3 text-primary">
+                            <i class="bi bi-phone"></i>
+                        </div>
+                        <div>
+                            <p class="mb-2" id="installHelpMessage"></p>
+                            <div class="small text-muted" id="installHelpSteps"></div>
+                        </div>
+                    </div>
+                </div>
+                <div class="modal-footer">
+                    <button type="button" class="btn btn-primary" data-bs-dismiss="modal">Got It</button>
+                </div>
+            </div>
+        </div>
+    </div>
 
     <!-- ── Global Confirm Dialog ──────────────────────────────────────────── -->
     <div class="modal fade" id="globalConfirmModal" tabindex="-1" aria-hidden="true">

src/PowderCoating.Web/wwwroot/js/install-app.js

@@ -0,0 +1,107 @@
+// Browser-aware install UX for supported PWAs.
+// Shows a real install button only when the browser exposes the install prompt,
+// and falls back to platform-specific instructions for iOS Safari.
+(function () {
+    'use strict';
+
+    const installBtn = document.getElementById('installAppBtn');
+    if (!installBtn) return;
+
+    const ua = navigator.userAgent || '';
+    const isIos = /iphone|ipad|ipod/i.test(ua);
+    const isIosSafari = isIos && /safari/i.test(ua) && !/crios|fxios|edgios/i.test(ua);
+
+    let deferredPrompt = null;
+
+    function isStandalone() {
+        return window.matchMedia('(display-mode: standalone)').matches || window.navigator.standalone === true;
+    }
+
+    function hideInstallButton() {
+        installBtn.classList.add('d-none');
+        installBtn.dataset.installKind = '';
+    }
+
+    function showInstallButton(kind, label, iconClass) {
+        installBtn.dataset.installKind = kind;
+        installBtn.classList.remove('d-none');
+        installBtn.querySelector('.install-label').textContent = label;
+        installBtn.querySelector('i').className = `bi ${iconClass}`;
+        installBtn.setAttribute('aria-label', label);
+        installBtn.title = label;
+    }
+
+    function showHelpModal(title, message, stepsHtml) {
+        const modalEl = document.getElementById('installHelpModal');
+        const modalTitleEl = document.getElementById('installHelpModalLabel');
+        const modalMessageEl = document.getElementById('installHelpMessage');
+        const modalStepsEl = document.getElementById('installHelpSteps');
+
+        if (!modalEl || !modalTitleEl || !modalMessageEl || !modalStepsEl) return;
+
+        modalTitleEl.textContent = title;
+        modalMessageEl.textContent = message;
+        modalStepsEl.innerHTML = stepsHtml;
+        bootstrap.Modal.getOrCreateInstance(modalEl).show();
+    }
+
+    function refreshInstallUi() {
+        if (isStandalone()) {
+            hideInstallButton();
+            return;
+        }
+
+        if (deferredPrompt) {
+            showInstallButton('prompt', 'Install App', 'bi-download');
+            return;
+        }
+
+        if (isIosSafari) {
+            showInstallButton('ios', 'Add to Home Screen', 'bi-box-arrow-down');
+            return;
+        }
+
+        hideInstallButton();
+    }
+
+    window.addEventListener('beforeinstallprompt', function (event) {
+        event.preventDefault();
+        deferredPrompt = event;
+        refreshInstallUi();
+    });
+
+    window.addEventListener('appinstalled', function () {
+        deferredPrompt = null;
+        hideInstallButton();
+    });
+
+    window.matchMedia('(display-mode: standalone)').addEventListener?.('change', refreshInstallUi);
+
+    installBtn.addEventListener('click', async function () {
+        const kind = installBtn.dataset.installKind;
+
+        if (kind === 'prompt' && deferredPrompt) {
+            deferredPrompt.prompt();
+
+            try {
+                await deferredPrompt.userChoice;
+            } catch {
+                // Ignore prompt result errors; the browser owns the final install flow.
+            }
+
+            deferredPrompt = null;
+            refreshInstallUi();
+            return;
+        }
+
+        if (kind === 'ios') {
+            showHelpModal(
+                'Add to Home Screen',
+                'Safari on iPhone and iPad installs web apps from the Share menu.',
+                'Tap <strong>Share</strong> in Safari, then choose <strong>Add to Home Screen</strong>.'
+            );
+        }
+    });
+
+    refreshInstallUi();
+})();

src/PowderCoating.Web/wwwroot/js/inventory-catalog-lookup.js

@@ -144,6 +144,7 @@
         setIfEmpty('field-curetemp', item.cureTemperatureF,  'Cure Temp');
         setIfEmpty('field-curetime', item.cureTimeMinutes,   'Cure Time');
         setIfEmpty('field-coverage', item.coverageSqFtPerLb, 'Coverage');
+        setIfEmpty('field-specificgravity', item.specificGravity, 'Specific Gravity');
         setIfEmpty('field-transfer', item.transferEfficiency,'Transfer Efficiency');
 
         if (item.requiresClearCoat != null) {
@@ -246,6 +247,7 @@
 
             setIfEmpty('field-finish',    data.finish,             'Finish');
             setIfEmpty('field-coverage',  data.coverageSqFtPerLb,  'Coverage');
+            setIfEmpty('field-specificgravity', data.specificGravity, 'Specific Gravity');
             setIfEmpty('field-transfer',  data.transferEfficiency, 'Transfer Efficiency');
             setIfEmpty('field-curetemp',  data.cureTemperatureF,   'Cure Temp');
             setIfEmpty('field-curetime',  data.cureTimeMinutes,    'Cure Time');

src/PowderCoating.Web/wwwroot/js/inventory-label-scan.js

@@ -446,6 +446,7 @@
         setIfEmpty('field-curetemp',    data.cureTemperatureF,  'Cure Temp');
         setIfEmpty('field-curetime',    data.cureTimeMinutes,   'Cure Time');
         setIfEmpty('field-coverage',    data.coverageSqFtPerLb, 'Coverage');
+        setIfEmpty('field-specificgravity', data.specificGravity, 'Specific Gravity');
         setIfEmpty('field-transfer',    data.transferEfficiency, 'Transfer Efficiency');
 
         if (data.unitPrice > 0) {

src/PowderCoating.Web/wwwroot/js/powder-catalog-ai-lookup.js

@@ -89,6 +89,7 @@
         fillIfEmpty('field-curetemp', data.cureTemperatureF, 'Cure Temp', filled);
         fillIfEmpty('field-curetime', data.cureTimeMinutes, 'Cure Time', filled);
         fillIfEmpty('field-coverage', data.coverageSqFtPerLb, 'Coverage', filled);
+        fillIfEmpty('field-specificgravity', data.specificGravity, 'Specific Gravity', filled);
         fillIfEmpty('field-transfer', data.transferEfficiency, 'Transfer Efficiency', filled);
         fillIfEmpty('field-producturl', data.specPageUrl, 'Product URL', filled);
         fillIfEmpty('field-imageurl', data.imageUrl, 'Image URL', filled);

src/PowderCoating.Web/wwwroot/manifest.json

@@ -2,7 +2,9 @@
   "name": "Powder Coating Logix",
   "short_name": "PCLogix",
   "description": "Powder coating shop management — jobs, quotes, inventory, and scheduling.",
+  "id": "/",
   "start_url": "/",
+  "scope": "/",
   "display": "standalone",
   "background_color": "#ffffff",
   "theme_color": "#1A1A1C",