Improve bootstrap handling in SenderEditorPage

Added a `DxLoadingPanel` to display a loading indicator during the bootstrap process. Introduced the `IsBootstrapLoading` property to track bootstrap progress. Refactored `OnParametersSetAsync` to handle bootstrap tokens more effectively, including redirecting to `/sender` if no token is provided. Updated `TryApplyBootstrapAsync` to adjust navigation behavior when the bootstrap payload is `null`.

Enhanced `OnAfterRenderAsync` to process `_pendingBootstrapToken` more cleanly and removed redundant logic. Simplified navigation and improved code readability and maintainability.

AGENTS.md

@@ -63,6 +63,36 @@ This section explains every markdown file in the repo: what it contains, why it
 
 ---
 
+## Markdown Audit Snapshot (2026-10-05)
+
+The following table summarizes repository markdown files by practical status: completed, partially complete, or removable candidates.
+
+| File | Type | Status | Missing / Gap | Removal Recommendation |
+|---|---|---|---|---|
+| `AGENTS.md` | Agent onboarding | Partially complete | Route/migration statements can drift from real code over time. | Keep |
+| `COPILOT_CONTEXT.md` | Architecture reference | Partially complete | Some route/render details may be out of sync with other docs; needs regular reconciliation. | Keep |
+| `FORM_APPLICATION_CONTEXT.md` | Legacy-to-modern feature spec | Partially complete | Large sections still marked not implemented / needs implementation. | Keep |
+| `RECEIVER_PDF_VIEWER_CONTEXT.md` | Receiver PDF viewer deep-dive | Partially complete | Long migration plan needs periodic sync with active implementation. | Keep |
+| `SENDER_SAVE_EDIT_MIGRATION_PLAN.md` | Sender workflow implementation plan | Partially complete | No explicit implementation progress markers per phase. | Keep (until migration closes) |
+| `SENDER_PDF_TOOLBAR_PLAN_EN.md` | Sender PDF toolbar plan | Incomplete | Explicit pending item remains (`Toolbar visual polish`). | Keep (until done) |
+| `SENDER_EDITOR_WASM_PDF_EDITOR_IMPLEMENTATION_PLAN_en.md` | Sender editor WASM migration plan | Incomplete | Plan exists but completion/progress tracking is minimal. | Keep (until done) |
+| `EnvelopeGenerator.Server/EnvelopeGenerator.Server/README.md` | Deployment guide | Complete (operational) | No critical gap identified. | Keep |
+| `envelope-generator-ui/README.md` | Angular scaffold README | Complete but generic | Template text only; low project-specific value. | Removable or replace with project-specific summary |
+| `EnvelopeGenerator.Web/wwwroot/lib/typed.js@2.1.0/README.md` | Third-party vendor README | Complete (vendor) | Not project workflow documentation. | Keep with vendor assets |
+| `EnvelopeGenerator.Web/wwwroot/lib/jquery-validation/LICENSE.md` | Third-party license | Complete (legal) | No gap. | Keep |
+| `EnvelopeGenerator.Server/EnvelopeGenerator.Server/wwwroot/css/open-iconic/README.md` | Third-party vendor README | Complete (vendor) | Not project-specific guidance. | Keep with vendor assets |
+| `ignore/EnvelopeGenerator/EnvelopeGenerator.Web/wwwroot/README.md` | Legacy PSPDFKit note | Outdated | Mentions deprecated PSPDFKit-based flow; may mislead if reused. | Removable/archive |
+| `ignore/EnvelopeGenerator/EnvelopeGenerator.Web/wwwroot/lib/typed.js@2.1.0/README.md` | Duplicate vendor README | Redundant | Duplicate copy under `ignore/`. | Removable/archive |
+| `ignore/EnvelopeGenerator/EnvelopeGenerator.Web/wwwroot/lib/bootstrap-icons/README.md` | Vendor README in archive area | Secondary | Archive-only utility, not active docs. | Removable/archive |
+| `ignore/EnvelopeGenerator/EnvelopeGenerator.Web/wwwroot/lib/jquery-validation/LICENSE.md` | Duplicate license in archive area | Redundant | Duplicate copy under `ignore/`. | Removable/archive (if legal policy allows) |
+| `ignore/EnvelopeGenerator/EnvelopeGenerator.GeneratorAPI/ClientApp/envelope-generator-ui/README.md` | Duplicate Angular scaffold README | Redundant | Generic template + duplicate in archive path. | Removable/archive |
+
+### Documentation Audit TODO
+
+- [ ] Validate this markdown audit table against the current codebase and update statuses (`complete`, `partial`, `incomplete`, `removable`) when implementation changes land.
+
+---
+
 ## Active Architecture (Post-Migration)
 
 **Frontend:** Blazor Auto (Server+WASM hybrid)
@@ -251,6 +281,7 @@ Manual testing workflow:
 - P1 security workstream: remove dynamic SQL string composition/interpolation from active save/create/update paths (`string.Format`, `$"...{input}..."`, `ToSqlParam`) and migrate to parameterized queries only; treat this as a potential SQL injection vulnerability (stability + security risk), execute repo-wide audit, and add CI guardrails to block reintroduction.
 - Alternative UX design (Server component): in `EnvelopeGenerator.Server/EnvelopeGenerator.Server/Components/Pages/EnvelopeSenderPage.razor`, enforce deterministic row double-click behavior as exactly one action (preview OR edit), and keep row action buttons/tooltips aligned with the same rule to eliminate ambiguous navigation.
 - Implement SPA-style language switching so the UI culture updates immediately without a full page reload.
+- Implement sender-scoped caching for "recent receiver suggestions" used during envelope creation (wizard/editor flows): cache key should include sender identity, support short TTL + invalidation hooks after successful envelope receiver writes, and prevent cross-sender suggestion leakage.
 
 ## Database
 

EnvelopeGenerator.Application/Common/Dto/Receiver/RecentReceiverSuggestionDto.cs

@@ -0,0 +1,10 @@
+namespace EnvelopeGenerator.Application.Common.Dto.Receiver;
+
+public class RecentReceiverSuggestionDto
+{
+    public required string FullName { get; init; }
+
+    public required string EmailAddress { get; init; }
+
+    public required DateTime LastUsedAt { get; init; }
+}

EnvelopeGenerator.Application/EnvelopeGenerator.Application.csproj

@@ -4,6 +4,7 @@
 		<TargetFrameworks>net7.0;net8.0;net9.0</TargetFrameworks>
 		<ImplicitUsings>enable</ImplicitUsings>
 		<Nullable>enable</Nullable>
+		<LangVersion>latest</LangVersion>
 		<GenerateDocumentationFile>true</GenerateDocumentationFile>
 		<DocumentationFile>bin\$(Configuration)\$(TargetFramework)\$(AssemblyName).xml</DocumentationFile>
 	</PropertyGroup>

EnvelopeGenerator.Application/EnvelopeReceivers/MappingProfile.cs

@@ -16,5 +16,9 @@ public class MappingProfile : Profile
     public MappingProfile()
     {
         CreateMap<Receiver, ReceiverDto>();
+
+        CreateMap<EnvelopeReceiver, RecentReceiverSuggestionDto>()
+            .ForMember(dest => dest.FullName, opt => opt.MapFrom(src => src.Name))
+            .ForMember(dest => dest.EmailAddress, opt => opt.MapFrom(src => src.Receiver.EmailAddress));
     }
 }

EnvelopeGenerator.Application/EnvelopeReceivers/Queries/ReadRecentReceiverSuggestionsQuery.cs

@@ -0,0 +1,98 @@
+using DigitalData.Core.Abstraction.Application.Repository;
+using EnvelopeGenerator.Application.Common.Dto.Receiver;
+using EnvelopeGenerator.Domain.Entities;
+using MediatR;
+using Microsoft.EntityFrameworkCore;
+
+namespace EnvelopeGenerator.Application.EnvelopeReceivers.Queries;
+
+/// <summary>
+/// Reads recent receiver suggestions for envelope creation.
+/// </summary>
+/// <remarks>
+/// Sender scope is assigned via chain method to avoid exposing username mutation from API query binding.
+/// </remarks>
+public record ReadRecentReceiverSuggestionsQuery : IRequest<IReadOnlyList<RecentReceiverSuggestionDto>>
+{
+    /// <summary>
+    /// Sender username used for scoping suggestion results.
+    /// </summary>
+    internal string? Username { get; private init; }
+
+    /// <summary>
+    /// Desired number of results.
+    /// </summary>
+    public int? Take { get; init; } = null;
+
+    /// <summary>
+    /// Returns a new query instance scoped to the specified sender username.
+    /// </summary>
+    /// <param name="username">Sender username from authenticated claims.</param>
+    /// <returns>Scoped query instance.</returns>
+    public ReadRecentReceiverSuggestionsQuery ForSender(string username)
+    {
+        return this with { Username = username };
+    }
+}
+
+/// <summary>
+/// Handles <see cref="ReadRecentReceiverSuggestionsQuery"/>.
+/// </summary>
+public class ReadRecentReceiverSuggestionsQueryHandler(IRepository<EnvelopeReceiver> repository)
+    : IRequestHandler<ReadRecentReceiverSuggestionsQuery, IReadOnlyList<RecentReceiverSuggestionDto>>
+{
+    /// <summary>
+    /// Retrieves distinct recent receiver suggestions grouped by receiver email.
+    /// </summary>
+    /// <param name="request">Suggestion query.</param>
+    /// <param name="cancel">Cancellation token.</param>
+    /// <returns>Ordered list of recent receiver suggestions.</returns>
+    public async Task<IReadOnlyList<RecentReceiverSuggestionDto>> Handle(ReadRecentReceiverSuggestionsQuery request, CancellationToken cancel)
+    {
+        var query = repository.Query
+            .AsNoTracking()
+            .Where(er => er.Receiver != null);
+
+        if (request.Username is not null)
+            query = query.Where(er => er.Envelope != null && er.Envelope.User.Username == request.Username);
+
+        // 1) For each email, compute the latest usage timestamp.
+        var latestPerEmail = query
+            .GroupBy(er => er.Receiver!.EmailAddress)
+            .Select(g => new
+            {
+                EmailAddress = g.Key,
+                LastUsedAt = g.Max(er => er.AddedWhen),
+            });
+
+        // 2) Join back to rows that match the latest timestamp per email.
+        var latestRows =
+            from er in query
+            join latest in latestPerEmail
+                on new { EmailAddress = er.Receiver!.EmailAddress, LastUsedAt = er.AddedWhen }
+                equals new { latest.EmailAddress, latest.LastUsedAt }
+            select new
+            {
+                EmailAddress = er.Receiver!.EmailAddress,
+                FullName = er.Name,
+                LastUsedAt = er.AddedWhen,
+            };
+
+        // 3) Tie-break: if multiple rows share the same latest timestamp for an email,
+        // pick a deterministic name via Max(FullName), then order by most recent usage.
+        var suggestions = latestRows
+            .GroupBy(x => new { x.EmailAddress, x.LastUsedAt })
+            .Select(g => new RecentReceiverSuggestionDto
+            {
+                EmailAddress = g.Key.EmailAddress,
+                FullName = g.Max(x => x.FullName) ?? string.Empty,
+                LastUsedAt = g.Key.LastUsedAt,
+            })
+            .OrderByDescending(x => x.LastUsedAt)
+            .ThenBy(x => x.EmailAddress);
+
+        return request.Take is int take
+            ? await suggestions.Take(take).ToListAsync(cancel)
+            : await suggestions.ToListAsync(cancel);
+    }
+}

EnvelopeGenerator.Application/Resources/Resource.de-DE.resx

@@ -123,6 +123,9 @@
   <data name="Back" xml:space="preserve">
     <value>Zurück</value>
   </data>
+  <data name="Next" xml:space="preserve">
+    <value>Weiter</value>
+  </data>
   <data name="AuthenticatorSetup_Prefix" xml:space="preserve">
     <value>Klicken Sie auf den</value>
   </data>
@@ -564,6 +567,12 @@
   <data name="AddReceiver" xml:space="preserve">
     <value>Empfänger hinzufügen</value>
   </data>
+  <data name="SenderWizard_RecentReceivers" xml:space="preserve">
+    <value>Zuletzt verwendete Empfänger</value>
+  </data>
+  <data name="Skip" xml:space="preserve">
+    <value>Überspringen</value>
+  </data>
   <data name="DeleteReceiver" xml:space="preserve">
     <value>Empfänger löschen</value>
   </data>

EnvelopeGenerator.Application/Resources/Resource.en-US.resx

@@ -123,6 +123,9 @@
   <data name="Back" xml:space="preserve">
     <value>Back</value>
   </data>
+  <data name="Next" xml:space="preserve">
+    <value>Next</value>
+  </data>
   <data name="AuthenticatorSetup_Prefix" xml:space="preserve">
     <value>Click the</value>
   </data>
@@ -564,6 +567,12 @@
   <data name="AddReceiver" xml:space="preserve">
     <value>Add Receiver</value>
   </data>
+  <data name="SenderWizard_RecentReceivers" xml:space="preserve">
+    <value>Recently used recipients</value>
+  </data>
+  <data name="Skip" xml:space="preserve">
+    <value>Skip</value>
+  </data>
   <data name="DeleteReceiver" xml:space="preserve">
     <value>Delete Receiver</value>
   </data>

EnvelopeGenerator.Application/Resources/Resource.fr-FR.resx

@@ -123,6 +123,9 @@
   <data name="Back" xml:space="preserve">
     <value>Retour</value>
   </data>
+  <data name="Next" xml:space="preserve">
+    <value>Suivant</value>
+  </data>
   <data name="AuthenticatorSetup_Prefix" xml:space="preserve">
     <value>Cliquez sur</value>
   </data>
@@ -564,6 +567,12 @@
   <data name="AddReceiver" xml:space="preserve">
     <value>Ajouter un destinataire</value>
   </data>
+  <data name="SenderWizard_RecentReceivers" xml:space="preserve">
+    <value>Destinataires recents</value>
+  </data>
+  <data name="Skip" xml:space="preserve">
+    <value>Passer</value>
+  </data>
   <data name="DeleteReceiver" xml:space="preserve">
     <value>Supprimer le destinataire</value>
   </data>

EnvelopeGenerator.Server/EnvelopeGenerator.Server.Client/Components/Sender/CreateEnvelopeWizardResult.cs

@@ -0,0 +1,22 @@
+namespace EnvelopeGenerator.Server.Client.Components.Sender;
+
+public sealed record CreateEnvelopeWizardResult(
+    string Title,
+    string Message,
+    int? EnvelopeTypeId,
+    string Language,
+    bool UseAccessCode,
+    bool TFAEnabled,
+    int CertificationType,
+    int FinalEmailToCreator,
+    int FinalEmailToReceivers,
+    bool SendReminderEmails,
+    int FirstReminderDays,
+    int ReminderIntervalDays,
+    int ExpiresWhenDays,
+    int ExpiresWarningWhenDays,
+    IReadOnlyList<CreateEnvelopeWizardReceiver> Receivers,
+    byte[]? DocumentBytes,
+    string? DocumentFileName);
+
+public sealed record CreateEnvelopeWizardReceiver(string FullName, string EmailAddress);

EnvelopeGenerator.Server/EnvelopeGenerator.Server.Client/Components/Sender/PdfFileDropZone.razor

@@ -0,0 +1,104 @@
+@using Microsoft.AspNetCore.Components.Forms
+
+<div class="sender-pdf-dropzone @DropZoneClass">
+    <div class="sender-pdf-dropzone__content">
+        <div class="sender-pdf-dropzone__title">@CurrentActionText</div>
+        @if (!string.IsNullOrWhiteSpace(DragDropHintText))
+        {
+            <div class="sender-pdf-dropzone__hint">@DragDropHintText</div>
+        }
+    </div>
+
+    <InputFile OnChange="OnFileSelectedAsync"
+               accept="@Accept"
+               disabled="@Disabled"
+               @ondragenter="OnDragEnter"
+               @ondragleave="OnDragLeave"
+               @ondragover="OnDragOver"
+               @ondrop="OnDrop"
+               class="sender-pdf-dropzone__input" />
+</div>
+
+@code {
+    [Parameter]
+    public bool Disabled { get; set; }
+
+    [Parameter]
+    public bool HasDocument { get; set; }
+
+    [Parameter]
+    public string Accept { get; set; } = ".pdf";
+
+    [Parameter]
+    public string UploadText { get; set; } = "PDF hochladen";
+
+    [Parameter]
+    public string ReplaceText { get; set; } = "PDF ersetzen";
+
+    [Parameter]
+    public string DragDropHintText { get; set; } = "Datei hierhin ziehen oder klicken";
+
+    [Parameter]
+    public EventCallback<InputFileChangeEventArgs> FileSelected { get; set; }
+
+    private int _dragDepth;
+    private bool _isDragActive;
+
+    private string CurrentActionText => HasDocument ? ReplaceText : UploadText;
+
+    private string DropZoneClass
+    {
+        get
+        {
+            if (Disabled)
+                return "sender-pdf-dropzone--disabled";
+
+            return _isDragActive ? "sender-pdf-dropzone--drag-active" : string.Empty;
+        }
+    }
+
+    private void OnDragEnter(DragEventArgs _)
+    {
+        if (Disabled)
+            return;
+
+        _dragDepth++;
+        _isDragActive = true;
+    }
+
+    private void OnDragLeave(DragEventArgs _)
+    {
+        if (Disabled)
+            return;
+
+        _dragDepth = Math.Max(0, _dragDepth - 1);
+        if (_dragDepth == 0)
+            _isDragActive = false;
+    }
+
+    private void OnDragOver(DragEventArgs _)
+    {
+        if (Disabled)
+            return;
+
+        _isDragActive = true;
+    }
+
+    private void OnDrop(DragEventArgs _)
+    {
+        _dragDepth = 0;
+        _isDragActive = false;
+    }
+
+    private async Task OnFileSelectedAsync(InputFileChangeEventArgs args)
+    {
+        _dragDepth = 0;
+        _isDragActive = false;
+
+        if (Disabled)
+            return;
+
+        if (FileSelected.HasDelegate)
+            await FileSelected.InvokeAsync(args);
+    }
+}

EnvelopeGenerator.Server/EnvelopeGenerator.Server.Client/Components/Sender/ReceiverSuggestionFilter/ReceiverFilterCriteria.cs

@@ -0,0 +1,25 @@
+namespace EnvelopeGenerator.Server.Client.Components.Sender.ReceiverSuggestionFilter;
+
+public readonly record struct ReceiverFilterCriteria
+{
+    public readonly string FullName;
+    public readonly string EmailAddress;
+
+    public ReceiverFilterCriteria(string? fullName = "", string? emailAddress = "")
+    {
+        FullName = Normalize(fullName);
+        EmailAddress = Normalize(emailAddress);
+    }
+
+    public readonly bool Matches(ReceiverFilterCriteria criteria)
+        => FullName.Contains(criteria.FullName, StringComparison.Ordinal)
+           && EmailAddress.Contains(criteria.EmailAddress, StringComparison.Ordinal);
+
+    private static string Normalize(string? text)
+    {
+        if (string.IsNullOrWhiteSpace(text))
+            return string.Empty;
+
+        return string.Concat(text.Where(c => !char.IsWhiteSpace(c))).ToLowerInvariant();
+    }
+}

EnvelopeGenerator.Server/EnvelopeGenerator.Server.Client/Components/Sender/ReceiverSuggestionFilter/ReceiverSuggestionFilterHandler.cs

@@ -0,0 +1,26 @@
+using EnvelopeGenerator.Application.Common.Dto.Receiver;
+
+namespace EnvelopeGenerator.Server.Client.Components.Sender.ReceiverSuggestionFilter;
+
+public class ReceiverSuggestionFilterHandler(IEnumerable<RecentReceiverSuggestionDto> suggestions)
+{
+    private readonly IReadOnlyList<Entry> _entries = suggestions
+        .Where(x => !string.IsNullOrWhiteSpace(x.FullName) && !string.IsNullOrWhiteSpace(x.EmailAddress))
+        .Select(x => new Entry(new ReceiverFilterCriteria(x.FullName, x.EmailAddress), x))
+        .ToList();
+
+    private readonly record struct Entry(ReceiverFilterCriteria Criteria, RecentReceiverSuggestionDto Suggestion);
+
+    public IEnumerable<RecentReceiverSuggestionDto> Filter(ReceiverFilterCriteria criteria)
+    {
+        return _entries
+            .Where(x => x.Criteria.Matches(criteria))
+            .Select(x => x.Suggestion);
+    }
+
+    public IEnumerable<RecentReceiverSuggestionDto> Filter(string fullName, string emailAddress)
+    {
+        var criteria = new ReceiverFilterCriteria(fullName, emailAddress);
+        return Filter(criteria);
+    }
+}

EnvelopeGenerator.Server/EnvelopeGenerator.Server.Client/Pages/SenderEditorPage.razor

@@ -21,6 +21,7 @@
 @inject ReceiverService ReceiverService
 @inject EnvelopeService EnvelopeService
 @inject EnvelopeTypeService EnvelopeTypeService
+@inject CreateEnvelopeBootstrapStorageService CreateEnvelopeBootstrapStorageService
 @inject AuthService AuthService
 @inject IStringLocalizer<Resource> UiLocalizer
 @inject IStringLocalizer<Model> ModelLocalizer
@@ -30,6 +31,11 @@
 <link href="@AppVersion.GetVersionedUrl("css/envelope-viewer.css")" rel="stylesheet" />
 <script src="@AppVersion.GetVersionedUrl("js/envelope-editor.js")"></script>
 
+<DxLoadingPanel Visible="@IsBootstrapLoading"
+                IsContentBlocked="true"
+                ApplyBackgroundShading="true"
+                IndicatorAreaVisible="true"
+                Text='@L("SenderEditor_BootstrapLoadingHint", "Der Umschlag wird vorbereitet und die Daten werden uebernommen.")'>
 <div class="envelope-viewer-layout">
 
     @* ── Action Bar ── *@
@@ -425,6 +431,7 @@
         }
     </div>
 </div>
+</DxLoadingPanel>
 
 <DxPopup @bind-Visible="_receiverPopupVisible"
          HeaderText='@L("AddReceiver", "Empfänger hinzufügen")'
@@ -589,6 +596,9 @@
     [SupplyParameterFromQuery(Name = "envelopeId")]
     public int? EnvelopeId { get; set; }
 
+    [SupplyParameterFromQuery(Name = "bootstrapToken")]
+    public string? BootstrapToken { get; set; }
+
     // ── Constants ──
     // Signature field size in PDF points (fixed): 1.77" × 1.96"
     const double SigWidthPt = 1.77 * 72;   // 127.44 pt
@@ -609,6 +619,8 @@
     int? _loadedEnvelopeId;
     int? _editingEnvelopeId;
     bool _isLoadingEnvelopeForEdit;
+    bool _bootstrapApplied;
+    string? _pendingBootstrapToken;
 
     List<SignatureFieldDraft> _signatureFields = [];
     ReceiverDraft? _pendingReceiverForPlacement; // Set when user clicks "Signatur hinzufügen"
@@ -629,6 +641,7 @@
     string _saveSuccessTitle = "Vorgang erfolgreich abgeschlossen.";
     string _saveSuccessBody = string.Empty;
     bool _saveNavigateToDashboard = false;
+    bool _saveDraftAfterBootstrap;
 
     // ── Envelope metadata ──
     string _envelopeTitle = string.Empty;
@@ -663,6 +676,7 @@
     static readonly System.ComponentModel.DataAnnotations.EmailAddressAttribute ReceiverEmailValidator = new();
 
     bool IsEditMode => EnvelopeId.HasValue && EnvelopeId.Value > 0;
+    bool IsBootstrapLoading => !IsEditMode && !_bootstrapApplied;
 
     // ── Lifecycle ──
 
@@ -703,19 +717,115 @@
             return;
         }
 
-        if (IsEditMode)
+        if (IsEditMode || _bootstrapApplied)
             return;
+
+        if (string.IsNullOrWhiteSpace(BootstrapToken))
+        {
+            NavigationManager.NavigateTo("/sender", replace: true);
+            return;
+        }
+
+        _pendingBootstrapToken = BootstrapToken;
     }
 
-    protected override Task OnAfterRenderAsync(bool firstRender)
+    async Task TryApplyBootstrapAsync(string token)
+    {
+        var payload = await CreateEnvelopeBootstrapStorageService.ConsumeAsync(token);
+        _bootstrapApplied = true;
+
+        if (payload is null)
+        {
+            NavigationManager.NavigateTo("/sender", replace: true);
+            return;
+        }
+
+        _envelopeTitle = payload.Title ?? string.Empty;
+        _envelopeMessage = payload.Message ?? string.Empty;
+        _selectedEnvelopeTypeId = payload.EnvelopeTypeId;
+        _language = string.IsNullOrWhiteSpace(payload.Language) ? "de-DE" : payload.Language;
+        _useAccessCode = payload.UseAccessCode;
+        _tfaEnabled = payload.TFAEnabled;
+        _certificationType = payload.CertificationType;
+        _finalEmailToCreator = payload.FinalEmailToCreator;
+        _finalEmailToReceivers = payload.FinalEmailToReceivers;
+        _sendReminderEmails = payload.SendReminderEmails;
+        _firstReminderDays = payload.FirstReminderDays;
+        _reminderIntervalDays = payload.ReminderIntervalDays;
+        _expiresWhenDays = payload.ExpiresWhenDays;
+        _expiresWarningWhenDays = payload.ExpiresWarningWhenDays;
+        NormalizeSettings();
+
+        _receivers = payload.Receivers
+            .Select((receiver, index) => new ReceiverDraft(
+                Guid.NewGuid(),
+                receiver.FullName,
+                receiver.EmailAddress,
+                string.Empty,
+                ReceiverPalette[index % ReceiverPalette.Length]))
+            .ToList();
+
+        _originalPdfBytes = payload.DocumentBytes;
+        _fileName = string.IsNullOrWhiteSpace(payload.DocumentFileName) ? "document.pdf" : payload.DocumentFileName;
+        _pdfLoaded = _originalPdfBytes is { Length: > 0 };
+
+        _signatureFields.Clear();
+        _pendingReceiverForPlacement = null;
+
+        _saveDraftAfterBootstrap = true;
+
+        if (_pdfLoaded && _originalPdfBytes is not null)
+        {
+            try
+            {
+                _pagePreviews = (await PdfRenderService.RenderPagesAsync(_originalPdfBytes))
+                    .OrderBy(p => p.PageNumber)
+                    .ToList();
+            }
+            catch (Exception ex)
+            {
+                Logger.LogWarning(ex, "Failed to render bootstrap PDF previews.");
+                _pagePreviews = [];
+            }
+
+            _pageCount = _pagePreviews.Count > 0
+                ? _pagePreviews.Count
+                : EstimatePdfPageCount(_originalPdfBytes) ?? 1;
+        }
+        else
+        {
+            _pagePreviews = [];
+            _pageCount = 0;
+        }
+    }
+
+    protected override async Task OnAfterRenderAsync(bool firstRender)
     {
         if (firstRender)
         {
             _isPageReady = true;
-            StateHasChanged();
+            await InvokeAsync(StateHasChanged);
+        }
+
+        if (!OperatingSystem.IsBrowser())
+            return;
+
+        if (!IsEditMode && !_bootstrapApplied && !string.IsNullOrWhiteSpace(_pendingBootstrapToken))
+        {
+            var token = _pendingBootstrapToken;
+            _pendingBootstrapToken = null;
+            await TryApplyBootstrapAsync(token);
+            await InvokeAsync(StateHasChanged);
+            return;
+        }
+
+        if (_saveDraftAfterBootstrap && !_isSaving)
+        {
+            _saveDraftAfterBootstrap = false;
+            await SaveDraftAndStayOnEditorAsync();
+            return;
         }
 
-        return Task.CompletedTask;
     }
 
     async Task LoadEnvelopeForEditAsync(int envelopeId)
@@ -1108,12 +1218,17 @@
     }
 
     async Task SaveDraftAsync()
+    {
+        await SaveDraftCoreAsync(navigateToDashboard: true);
+    }
+
+    async Task<int?> SaveDraftCoreAsync(bool navigateToDashboard)
     {
         if (!ValidateSettings(out var settingsError))
         {
             _saveErrorMessage = settingsError;
             _savePopupVisible = true;
-            return;
+            return null;
         }
 
         _isSaving = true;
@@ -1134,25 +1249,37 @@
             _loadedEnvelopeId = result.Id;
             _editingEnvelopeId = result.Id;
 
-            if (previousEnvelopeId != result.Id)
+            if (navigateToDashboard)
+            {
+                NavigationManager.NavigateTo("/sender", forceLoad: false);
+            }
+            else if (previousEnvelopeId != result.Id)
             {
                 NavigationManager.NavigateTo($"/sender/editor?envelopeId={result.Id}", forceLoad: false);
             }
 
-            NavigationManager.NavigateTo("/sender", forceLoad: false);
+            return result.Id;
         }
         catch (Exception ex)
         {
             Logger.LogError(ex, "[SenderEditor] Failed to save draft");
             _saveErrorMessage = ex.Message;
             _savePopupVisible = true;
+            return null;
         }
         finally
         {
             _isSaving = false;
+            await InvokeAsync(StateHasChanged);
         }
     }
 
+    async Task SaveDraftAndStayOnEditorAsync()
+    {
+        Logger.LogInformation("[SenderEditor] Trigger bootstrap draft save.");
+        await SaveDraftCoreAsync(navigateToDashboard: false);
+    }
+
     // ── Send envelope ──
     async Task SendAsync()
     {

EnvelopeGenerator.Server/EnvelopeGenerator.Server.Client/Pages/SenderPage.razor

@@ -9,14 +9,17 @@
 @using EnvelopeGenerator.Application.Common.Dto.History
 @using EnvelopeGenerator.Application.Resources
 @using EnvelopeGenerator.Domain.Resources
+@using EnvelopeGenerator.Server.Client.Components.Sender
 @using Microsoft.Extensions.Localization
 @inject EnvelopeGenerator.Server.Client.Services.EnvelopeService EnvelopeService
 @inject EnvelopeGenerator.Server.Client.Services.DocumentService DocumentService
 @inject EnvelopeGenerator.Server.Client.Services.PdfRenderService PdfRenderService
+@inject EnvelopeGenerator.Server.Client.Services.EnvelopeTypeService EnvelopeTypeService
 @inject EnvelopeGenerator.Server.Client.Services.AuthService AuthService
 @inject EnvelopeGenerator.Server.Client.Services.ThemeService ThemeService
 @inject EnvelopeGenerator.Server.Client.Services.UserPreferencesService UserPreferencesService
 @inject EnvelopeGenerator.Server.Client.Services.CustomImagesService CustomImagesService
+@inject EnvelopeGenerator.Server.Client.Services.CreateEnvelopeBootstrapStorageService CreateEnvelopeBootstrapStorageService
 @inject ILogger<SenderPage> Logger
 @inject NavigationManager Navigation
 @inject IJSRuntime JSRuntime
@@ -414,6 +417,11 @@
 
 </div>
 
+<CreateEnvelopeWizardPopup Visible="@_createWizardVisible"
+                          VisibleChanged="OnCreateWizardVisibleChangedAsync"
+                          EnvelopeTypes="@_envelopeTypes"
+                          StartEditorRequested="StartEditorFromWizardAsync" />
+
 @* ── PDF Vorschau Popup ────────────────────────────────────────────────── *@
 <DxPopup @bind-Visible="@_previewVisible"
          HeaderText="@($"{L("Preview", "Vorschau")} — {_selectedEnvelope?.Title} (#{_selectedEnvelope?.Id})")"
@@ -567,6 +575,9 @@
     private string _deleteReason = string.Empty;
     private string? _deleteErrorMessage;
 
+    private bool _createWizardVisible = false;
+    private IReadOnlyList<EnvelopeTypeDto> _envelopeTypes = [];
+
     // Stable keys used to store/restore each tab's layout in UserPreferences.GridLayouts
     private const string GridKeyActive = "sender.active-envelopes";
     private const string GridKeyCompleted = "sender.completed-envelopes";
@@ -596,6 +607,16 @@
         _appLogo = logos.App;
         _companyLogo = logos.Company;
 
+        try
+        {
+            _envelopeTypes = (await EnvelopeTypeService.GetAsync()).ToList();
+        }
+        catch (Exception ex)
+        {
+            Logger.LogWarning(ex, "Failed to load envelope types for create wizard.");
+            _envelopeTypes = [];
+        }
+
         await LoadEnvelopesAsync();
     }
 
@@ -693,7 +714,40 @@
 
     void CreateEnvelope()
     {
-        Navigation.NavigateTo("/sender/editor");
+        _createWizardVisible = true;
+    }
+
+    Task OnCreateWizardVisibleChangedAsync(bool visible)
+    {
+        _createWizardVisible = visible;
+        return Task.CompletedTask;
+    }
+
+    async Task StartEditorFromWizardAsync(CreateEnvelopeWizardResult result)
+    {
+        var payload = new CreateEnvelopeBootstrapPayload(
+            Title: result.Title,
+            Message: result.Message,
+            EnvelopeTypeId: result.EnvelopeTypeId,
+            Language: result.Language,
+            UseAccessCode: result.UseAccessCode,
+            TFAEnabled: result.TFAEnabled,
+            CertificationType: result.CertificationType,
+            FinalEmailToCreator: result.FinalEmailToCreator,
+            FinalEmailToReceivers: result.FinalEmailToReceivers,
+            SendReminderEmails: result.SendReminderEmails,
+            FirstReminderDays: result.FirstReminderDays,
+            ReminderIntervalDays: result.ReminderIntervalDays,
+            ExpiresWhenDays: result.ExpiresWhenDays,
+            ExpiresWarningWhenDays: result.ExpiresWarningWhenDays,
+            Receivers: result.Receivers
+                .Select(x => new CreateEnvelopeBootstrapReceiver(x.FullName, x.EmailAddress))
+                .ToList(),
+            DocumentBytes: result.DocumentBytes,
+            DocumentFileName: result.DocumentFileName);
+
+        var token = await CreateEnvelopeBootstrapStorageService.StoreAsync(payload);
+        Navigation.NavigateTo($"/sender/editor?bootstrapToken={token}");
     }
 
     void EditEnvelope()

EnvelopeGenerator.Server/EnvelopeGenerator.Server.Client/Program.cs

@@ -45,6 +45,7 @@ builder.Services.AddScoped<EnvelopeTypeService>();
 builder.Services.AddScoped<LocalizationService>();
 builder.Services.AddScoped<ReceiverService>();
 builder.Services.AddScoped<PdfRenderService>();
+builder.Services.AddScoped<CreateEnvelopeBootstrapStorageService>();
 
 // UI Preferences & Theme
 builder.Services.AddScoped<UserPreferencesService>();

EnvelopeGenerator.Server/EnvelopeGenerator.Server.Client/Services/CreateEnvelopeBootstrapStorageService.cs

@@ -0,0 +1,64 @@
+using System.Text.Json;
+using Microsoft.JSInterop;
+
+namespace EnvelopeGenerator.Server.Client.Services;
+
+public sealed class CreateEnvelopeBootstrapStorageService(IJSRuntime jsRuntime)
+{
+    private const string StorageKeyPrefix = "sender.createEnvelope.bootstrap.";
+    private static readonly JsonSerializerOptions JsonOptions = new(JsonSerializerDefaults.Web);
+
+    public async Task<string> StoreAsync(CreateEnvelopeBootstrapPayload payload)
+    {
+        var token = Guid.NewGuid().ToString("N");
+        var key = BuildStorageKey(token);
+        var json = JsonSerializer.Serialize(payload, JsonOptions);
+        await jsRuntime.InvokeVoidAsync("sessionStorage.setItem", key, json);
+        return token;
+    }
+
+    public async Task<CreateEnvelopeBootstrapPayload?> ConsumeAsync(string? token)
+    {
+        if (string.IsNullOrWhiteSpace(token))
+            return null;
+
+        var key = BuildStorageKey(token);
+        var raw = await jsRuntime.InvokeAsync<string?>("sessionStorage.getItem", key);
+        await jsRuntime.InvokeVoidAsync("sessionStorage.removeItem", key);
+
+        if (string.IsNullOrWhiteSpace(raw))
+            return null;
+
+        try
+        {
+            return JsonSerializer.Deserialize<CreateEnvelopeBootstrapPayload>(raw, JsonOptions);
+        }
+        catch
+        {
+            return null;
+        }
+    }
+
+    private static string BuildStorageKey(string token) => $"{StorageKeyPrefix}{token}";
+}
+
+public sealed record CreateEnvelopeBootstrapPayload(
+    string Title,
+    string Message,
+    int? EnvelopeTypeId,
+    string Language,
+    bool UseAccessCode,
+    bool TFAEnabled,
+    int CertificationType,
+    int FinalEmailToCreator,
+    int FinalEmailToReceivers,
+    bool SendReminderEmails,
+    int FirstReminderDays,
+    int ReminderIntervalDays,
+    int ExpiresWhenDays,
+    int ExpiresWarningWhenDays,
+    IReadOnlyList<CreateEnvelopeBootstrapReceiver> Receivers,
+    byte[]? DocumentBytes,
+    string? DocumentFileName);
+
+public sealed record CreateEnvelopeBootstrapReceiver(string FullName, string EmailAddress);

EnvelopeGenerator.Server/EnvelopeGenerator.Server.Client/Services/ReceiverService.cs

@@ -1,5 +1,6 @@
 using System.Net.Http.Json;
 using System.Text.Json;
+using EnvelopeGenerator.Application.Common.Dto.Receiver;
 
 namespace EnvelopeGenerator.Server.Client.Services;
 
@@ -26,4 +27,21 @@ public class ReceiverService(IHttpClientFactory httpClientFactory)
         var emails = await response.Content.ReadFromJsonAsync<List<string>>(JsonOptions, cancel);
         return emails ?? [];
     }
+
+    /// <summary>
+    /// Fetches recent receiver suggestions for the authenticated sender.
+    /// Calls GET /api/EnvelopeReceiver/recent-suggestions?take={take}.
+    /// </summary>
+    public async Task<IReadOnlyList<RecentReceiverSuggestionDto>> GetRecentReceiverSuggestionsAsync(int take = 20, CancellationToken cancel = default)
+    {
+        using var http = httpClientFactory.CreateClient("EnvelopeGenerator.Server");
+        var url = $"/api/EnvelopeReceiver/recent-suggestions?take={take}";
+        var response = await http.GetAsync(url, cancel);
+
+        if (!response.IsSuccessStatusCode)
+            return [];
+
+        var suggestions = await response.Content.ReadFromJsonAsync<List<RecentReceiverSuggestionDto>>(JsonOptions, cancel);
+        return suggestions ?? [];
+    }
 }

EnvelopeGenerator.Server/EnvelopeGenerator.Server/Controllers/EnvelopeReceiverController.cs

@@ -112,6 +112,20 @@ public class EnvelopeReceiverController : ControllerBase
         return name is null ? NotFound() : Ok(name);
     }
 
+    /// <summary>
+    /// Returns recent receiver suggestions for the authenticated sender.
+    /// </summary>
+    /// <param name="query">Suggestion query options (take 3..5 is applied in handler).</param>
+    /// <param name="cancel">Cancellation token.</param>
+    /// <returns>List of recent distinct receiver suggestions.</returns>
+    [Authorize(AuthenticationSchemes = AuthScheme.Sender)]
+    [HttpGet("recent-suggestions")]
+    public async Task<IActionResult> GetRecentSuggestions([FromQuery] ReadRecentReceiverSuggestionsQuery query, CancellationToken cancel)
+    {
+        var result = await _mediator.Send(query.ForSender(User.GetUsername()), cancel);
+        return Ok(result);
+    }
+
     /// <summary>
     /// Datenübertragungsobjekt mit Informationen zu Umschlägen, Empfängern und Unterschriften.
     /// </summary>

EnvelopeGenerator.Server/EnvelopeGenerator.Server/Program.cs

@@ -346,6 +346,7 @@ try
     builder.Services.AddScoped<EnvelopeGenerator.Server.Client.Services.ReceiverService>();
     builder.Services.AddScoped<EnvelopeGenerator.Server.Client.Services.PdfRenderService>();
     builder.Services.AddScoped<EnvelopeGenerator.Server.Client.Services.EnvelopeTypeService>();
+    builder.Services.AddScoped<EnvelopeGenerator.Server.Client.Services.CreateEnvelopeBootstrapStorageService>();
 
     // Business Services (Server specific)
     builder.Services.AddScoped<DocumentService>();

EnvelopeGenerator.Server/EnvelopeGenerator.Server/wwwroot/css/sender-page.css

@@ -1094,3 +1094,557 @@
 [data-sf-theme="blazing-dark"] .sender-preview-error-msg {
     color: rgba(255, 255, 255, 0.50);
 }
+
+.sender-create-wizard {
+    display: flex;
+    flex-direction: column;
+    gap: 1rem;
+    padding: 0.25rem 0;
+    outline: none;
+}
+
+.sender-create-wizard-popup .dxbl-popup-content {
+    max-height: min(78vh, 760px);
+    overflow: auto;
+}
+
+.sender-create-wizard-popup .dxbl-popup-footer {
+    position: sticky;
+    bottom: 0;
+    background: rgba(255, 255, 255, 0.96);
+    backdrop-filter: blur(6px);
+    z-index: 2;
+}
+
+.sender-create-wizard__progress {
+    position: relative;
+    display: grid;
+    grid-template-columns: repeat(4, minmax(0, 1fr));
+    align-items: center;
+    gap: 0.5rem;
+}
+
+.sender-create-wizard__progress-track {
+    position: absolute;
+    left: 12px;
+    right: 12px;
+    top: 50%;
+    height: 2px;
+    transform: translateY(-50%);
+    background: rgba(126, 34, 206, 0.18);
+    z-index: 0;
+}
+
+.sender-create-wizard__step {
+    position: relative;
+    z-index: 1;
+    display: flex;
+    justify-content: center;
+}
+
+.sender-create-wizard__step-index {
+    width: 24px;
+    height: 24px;
+    border-radius: 999px;
+    display: inline-flex;
+    align-items: center;
+    justify-content: center;
+    font-size: 0.78rem;
+    font-weight: 700;
+    color: #64748b;
+    background: #f8fafc;
+    border: 1px solid rgba(126, 34, 206, 0.25);
+}
+
+.sender-create-wizard__step--active .sender-create-wizard__step-index {
+    color: #ffffff;
+    background: linear-gradient(135deg, #7e22ce 0%, #2a5298 100%);
+    border-color: transparent;
+    box-shadow: 0 0 0 3px rgba(126, 34, 206, 0.15);
+}
+
+.sender-create-wizard__step--done .sender-create-wizard__step-index {
+    color: #ffffff;
+    background: #2a5298;
+    border-color: transparent;
+}
+
+.sender-create-wizard__meta {
+    display: flex;
+    flex-direction: column;
+    gap: 0.25rem;
+}
+
+.sender-create-wizard__title {
+    font-size: 1rem;
+    font-weight: 700;
+    color: #1f2937;
+}
+
+.sender-create-wizard__description {
+    font-size: 0.875rem;
+    color: #64748b;
+    line-height: 1.4;
+}
+
+.sender-create-wizard__stage {
+    border: 1px solid rgba(126, 34, 206, 0.12);
+    border-radius: 10px;
+    background: rgba(126, 34, 206, 0.04);
+    padding: 0.85rem 0.95rem;
+}
+
+.sender-create-wizard__stage p {
+    margin: 0;
+    color: #334155;
+    font-size: 0.9rem;
+}
+
+.sender-create-wizard__footer {
+    width: 100%;
+    display: flex;
+    justify-content: flex-end;
+    gap: 0.5rem;
+}
+
+@media (max-width: 640px) {
+    .sender-create-wizard__footer {
+        flex-wrap: wrap;
+    }
+
+    .sender-create-wizard__footer .dxbl-btn {
+        flex: 1 1 calc(50% - 0.5rem);
+    }
+}
+
+.sender-create-wizard__validation {
+    border: 1px solid rgba(220, 38, 38, 0.24);
+    background: rgba(254, 226, 226, 0.9);
+    color: #991b1b;
+    border-radius: 8px;
+    padding: 0.6rem 0.75rem;
+    font-size: 0.85rem;
+}
+
+.sender-create-wizard__form-grid {
+    display: grid;
+    grid-template-columns: repeat(2, minmax(0, 1fr));
+    gap: 0.9rem;
+}
+
+.sender-create-wizard__field {
+    display: flex;
+    flex-direction: column;
+    gap: 0.35rem;
+}
+
+.sender-create-wizard__field--full {
+    grid-column: 1 / -1;
+}
+
+.sender-create-wizard__settings-grid {
+    display: grid;
+    gap: 0.8rem;
+}
+
+.sender-create-wizard__settings-group {
+    border: 1px solid rgba(148, 163, 184, 0.34);
+    border-radius: 10px;
+    background: rgba(248, 250, 252, 0.86);
+    padding: 0.8rem;
+}
+
+.sender-create-wizard__settings-title {
+    font-size: 0.8rem;
+    font-weight: 800;
+    color: #334155;
+    margin-bottom: 0.6rem;
+}
+
+.sender-create-wizard__settings-toggles {
+    display: flex;
+    flex-wrap: wrap;
+    gap: 0.55rem 1.1rem;
+}
+
+.sender-create-wizard__settings-toggle {
+    display: inline-flex;
+    align-items: center;
+    gap: 0.4rem;
+    font-size: 0.82rem;
+    font-weight: 600;
+    color: #334155;
+}
+
+.sender-create-wizard__label {
+    font-size: 0.82rem;
+    font-weight: 700;
+    color: #334155;
+}
+
+.sender-create-wizard__required {
+    color: #dc2626;
+}
+
+.sender-create-wizard__optional {
+    color: #64748b;
+    font-weight: 600;
+}
+
+.sender-create-wizard__select {
+    min-height: 38px;
+    border: 1px solid rgba(126, 34, 206, 0.25);
+    border-radius: 8px;
+    padding: 0.45rem 0.55rem;
+    background: #ffffff;
+    color: #1f2937;
+}
+
+.sender-create-wizard__receiver-actions {
+    display: flex;
+    justify-content: flex-end;
+}
+
+.sender-create-wizard__add-receiver-btn {
+    display: inline-flex;
+    align-items: center;
+    justify-content: center;
+    gap: 0.4rem;
+    min-height: 36px;
+    min-width: 220px;
+    font-weight: 700;
+    font-size: 0.84rem;
+    border: 1px solid rgba(14, 116, 144, 0.28);
+    border-radius: 8px;
+    background: rgba(236, 254, 255, 0.95);
+    color: #0f766e;
+    box-shadow: 0 6px 14px rgba(14, 116, 144, 0.15);
+    padding: 0.45rem 0.9rem;
+}
+
+.sender-create-wizard__add-receiver-btn:hover:not(:disabled) {
+    background: rgba(207, 250, 254, 1);
+    color: #0f766e;
+}
+
+.sender-create-wizard__add-receiver-btn:disabled {
+    opacity: 0.58;
+    cursor: not-allowed;
+}
+
+.sender-create-wizard__suggestions {
+    display: flex;
+    flex-direction: column;
+    gap: 0.45rem;
+}
+
+.sender-create-wizard__suggestions-title {
+    font-size: 0.8rem;
+    font-weight: 700;
+    color: #475569;
+}
+
+.sender-create-wizard__suggestion-list {
+    display: flex;
+    flex-wrap: nowrap;
+    overflow-x: auto;
+    overflow-y: hidden;
+    white-space: nowrap;
+    gap: 0.45rem;
+    padding-bottom: 0.25rem;
+}
+
+.sender-create-wizard__suggestion-item {
+    display: flex;
+    flex: 0 0 auto;
+    flex-direction: column;
+    align-items: flex-start;
+    gap: 0.12rem;
+    border: 1px solid rgba(14, 116, 144, 0.22);
+    border-radius: 999px;
+    background: rgba(236, 254, 255, 0.85);
+    color: #0f172a;
+    padding: 0.35rem 0.7rem;
+    min-width: 0;
+}
+
+.sender-create-wizard__receiver-tagbox-wrap {
+    display: flex;
+    flex-direction: column;
+    gap: 0.35rem;
+}
+
+.sender-create-wizard__receiver-tagbox {
+    width: 100%;
+}
+
+.sender-create-wizard__receiver-tag {
+    display: inline-flex;
+    align-items: center;
+    gap: 0.4rem;
+    padding: 0.18rem 0.45rem;
+    border-radius: 999px;
+    background: rgba(236, 254, 255, 0.95);
+    border: 1px solid rgba(14, 116, 144, 0.25);
+}
+
+.sender-create-wizard__receiver-tag-name {
+    font-weight: 700;
+}
+
+.sender-create-wizard__receiver-tag-email {
+    color: #64748b;
+    font-size: 0.78rem;
+}
+
+.sender-create-wizard__receiver-tag-remove {
+    border: 0;
+    background: transparent;
+    color: #0f766e;
+    font-size: 0.76rem;
+    font-weight: 700;
+    line-height: 1;
+    padding: 0;
+    width: 1rem;
+    height: 1rem;
+    cursor: pointer;
+}
+
+.sender-create-wizard__tagbox-empty {
+    height: 0;
+    padding: 0;
+    margin: 0;
+}
+
+.sender-create-wizard__suggestion-item:disabled {
+    opacity: 0.58;
+}
+
+.sender-create-wizard__suggestion-name {
+    font-size: 0.77rem;
+    font-weight: 700;
+    line-height: 1.1;
+}
+
+.sender-create-wizard__suggestion-email {
+    font-size: 0.72rem;
+    color: #155e75;
+    line-height: 1.1;
+}
+
+.sender-create-wizard__receiver-list {
+    display: flex;
+    flex-direction: column;
+    gap: 0.5rem;
+}
+
+.sender-create-wizard__receiver-item {
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+    border: 1px solid rgba(126, 34, 206, 0.18);
+    border-radius: 8px;
+    padding: 0.55rem 0.7rem;
+    background: rgba(248, 250, 252, 0.95);
+    gap: 0.75rem;
+}
+
+.sender-create-wizard__receiver-name {
+    font-size: 0.86rem;
+    font-weight: 700;
+    color: #1f2937;
+}
+
+.sender-create-wizard__receiver-email {
+    font-size: 0.79rem;
+    color: #64748b;
+}
+
+.sender-create-wizard__receiver-remove {
+    border: 1px solid rgba(220, 38, 38, 0.2);
+    border-radius: 6px;
+    background: rgba(220, 38, 38, 0.08);
+    color: #b91c1c;
+    font-size: 0.78rem;
+    font-weight: 700;
+    padding: 0.25rem 0.55rem;
+}
+
+.sender-create-wizard__upload-stage {
+    display: flex;
+    flex-direction: column;
+    gap: 0.75rem;
+}
+
+.sender-create-wizard__upload-btn {
+    display: inline-flex;
+    align-items: center;
+    justify-content: center;
+    border: 1px solid rgba(126, 34, 206, 0.28);
+    border-radius: 8px;
+    padding: 0.55rem 0.9rem;
+    background: rgba(126, 34, 206, 0.08);
+    color: #4c1d95;
+    font-size: 0.84rem;
+    font-weight: 700;
+    width: fit-content;
+    cursor: pointer;
+}
+
+.sender-create-wizard__upload-btn--disabled {
+    opacity: 0.55;
+    cursor: not-allowed;
+}
+
+.sender-create-wizard__hidden-input {
+    display: none;
+}
+
+.sender-pdf-dropzone {
+    position: relative;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    min-height: 92px;
+    border: 1px dashed rgba(100, 116, 139, 0.5);
+    border-radius: 8px;
+    background: rgba(248, 250, 252, 0.9);
+    color: #334155;
+    cursor: pointer;
+    transition: border-color 120ms ease, background-color 120ms ease, box-shadow 120ms ease;
+}
+
+.sender-pdf-dropzone:hover {
+    border-color: rgba(126, 34, 206, 0.45);
+    background: rgba(241, 245, 249, 0.95);
+}
+
+.sender-pdf-dropzone--drag-active {
+    border-color: rgba(16, 185, 129, 0.75);
+    background: linear-gradient(180deg, rgba(16, 185, 129, 0.14), rgba(16, 185, 129, 0.08));
+    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.16);
+}
+
+.sender-pdf-dropzone--disabled {
+    opacity: 0.55;
+    cursor: not-allowed;
+}
+
+.sender-pdf-dropzone__content {
+    text-align: center;
+    display: grid;
+    gap: 0.2rem;
+    padding: 0.75rem 0.9rem;
+}
+
+.sender-pdf-dropzone__title {
+    font-size: 0.86rem;
+    font-weight: 700;
+}
+
+.sender-pdf-dropzone__hint {
+    font-size: 0.78rem;
+    color: #64748b;
+}
+
+.sender-pdf-dropzone__input {
+    position: absolute;
+    inset: 0;
+    width: 100%;
+    height: 100%;
+    opacity: 0;
+    cursor: pointer;
+}
+
+.sender-pdf-dropzone--disabled .sender-pdf-dropzone__input {
+    cursor: not-allowed;
+}
+
+.sender-create-wizard__document-meta {
+    border: 1px solid rgba(16, 185, 129, 0.3);
+    border-radius: 8px;
+    background: rgba(16, 185, 129, 0.08);
+    padding: 0.55rem 0.7rem;
+}
+
+.sender-create-wizard__document-preview-card {
+    display: flex;
+    flex-direction: column;
+    gap: 0.65rem;
+}
+
+.sender-create-wizard__document-preview-wrap {
+    border: 1px solid rgba(148, 163, 184, 0.38);
+    border-radius: 10px;
+    background: rgba(248, 250, 252, 0.96);
+    height: 320px;
+    overflow: hidden;
+}
+
+.sender-create-wizard__document-preview-wrap .sender-image-editor-shell {
+    height: 100%;
+}
+
+.sender-create-wizard__document-preview-wrap .sender-image-editor {
+    min-height: 0;
+}
+
+.sender-create-wizard__document-name {
+    color: #064e3b;
+    font-size: 0.85rem;
+    font-weight: 700;
+}
+
+.sender-create-wizard__document-size {
+    color: #065f46;
+    font-size: 0.77rem;
+}
+
+.sender-create-wizard__empty-list {
+    border: 1px dashed rgba(100, 116, 139, 0.4);
+    border-radius: 8px;
+    padding: 0.6rem 0.75rem;
+    color: #475569;
+    font-size: 0.83rem;
+    background: rgba(248, 250, 252, 0.8);
+}
+
+@media (max-width: 760px) {
+    .sender-create-wizard-popup .dxbl-popup {
+        width: 96vw !important;
+        max-width: 96vw !important;
+    }
+
+    .sender-create-wizard__progress {
+        gap: 0.35rem;
+    }
+
+    .sender-create-wizard__title {
+        font-size: 0.93rem;
+    }
+
+    .sender-create-wizard__description {
+        font-size: 0.81rem;
+    }
+
+    .sender-create-wizard__form-grid {
+        grid-template-columns: 1fr;
+    }
+
+    .sender-create-wizard__receiver-item {
+        flex-direction: column;
+        align-items: flex-start;
+    }
+
+    .sender-create-wizard__receiver-remove {
+        width: 100%;
+    }
+
+    .sender-pdf-dropzone {
+        width: 100%;
+    }
+
+    .sender-create-wizard__upload-btn {
+        width: 100%;
+    }
+}