diff --git a/app/Domain/CalendarGenerator.php b/app/Domain/CalendarGenerator.php
new file mode 100644
index 0000000..f1d72f2
--- /dev/null
+++ b/app/Domain/CalendarGenerator.php
@@ -0,0 +1,80 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Toby\Domain;
+
+use Carbon\CarbonImmutable;
+use Carbon\CarbonInterface;
+use Carbon\CarbonPeriod;
+use Illuminate\Support\Collection;
+use Toby\Domain\Enums\VacationRequestState;
+use Toby\Eloquent\Helpers\YearPeriodRetriever;
+use Toby\Eloquent\Models\Vacation;
+use Toby\Eloquent\Models\YearPeriod;
+
+class CalendarGenerator
+{
+    public function __construct(
+        protected YearPeriodRetriever $yearPeriodRetriever,
+    ) {
+    }
+
+    public function generate(YearPeriod $yearPeriod, string $month): array
+    {
+        $date = CarbonImmutable::create($yearPeriod->year, $this->monthNameToNumber($month));
+        $period = CarbonPeriod::create($date->startOfMonth(), $date->endOfMonth());
+        $holidays = $yearPeriod->holidays()->pluck("date");
+
+        return $this->generateCalendar($period, $holidays);
+    }
+
+    protected function monthNameToNumber($name): int
+    {
+        return match ($name) {
+            default => CarbonInterface::JANUARY,
+            "february" => CarbonInterface::FEBRUARY,
+            "march" => CarbonInterface::MARCH,
+            "april" => CarbonInterface::APRIL,
+            "may" => CarbonInterface::MAY,
+            "june" => CarbonInterface::JUNE,
+            "july" => CarbonInterface::JULY,
+            "august" => CarbonInterface::AUGUST,
+            "september" => CarbonInterface::SEPTEMBER,
+            "october" => CarbonInterface::OCTOBER,
+            "november" => CarbonInterface::NOVEMBER,
+            "december" => CarbonInterface::DECEMBER,
+        };
+    }
+
+    protected function generateCalendar(CarbonPeriod $period, Collection $holidays): array
+    {
+        $calendar = [];
+        $vacations = $this->getVacationsForPeriod($period);
+
+        foreach ($period as $day) {
+            $vacationsForDay = $vacations[$day->toDateString()] ?? new Collection();
+
+            $calendar[] = [
+                "date" => $day->toDateString(),
+                "dayOfMonth" => $day->translatedFormat("j"),
+                "dayOfWeek" => $day->translatedFormat("D"),
+                "isToday" => $day->isToday(),
+                "isWeekend" => $day->isWeekend(),
+                "isHoliday" => $holidays->contains($day),
+                "vacations" => $vacationsForDay->pluck("user_id"),
+            ];
+        }
+
+        return $calendar;
+    }
+
+    protected function getVacationsForPeriod(CarbonPeriod $period): Collection
+    {
+        return Vacation::query()
+            ->whereBetween("date", [$period->start, $period->end])
+            ->whereRelation("vacationRequest", "state", VacationRequestState::Approved->value)
+            ->get()
+            ->groupBy(fn(Vacation $vacation) => $vacation->date->toDateString());
+    }
+}
diff --git a/app/Domain/Enums/EmploymentForm.php b/app/Domain/Enums/EmploymentForm.php
index cdaa241..625b801 100644
--- a/app/Domain/Enums/EmploymentForm.php
+++ b/app/Domain/Enums/EmploymentForm.php
@@ -6,10 +6,10 @@ namespace Toby\Domain\Enums;
 
 enum EmploymentForm: string
 {
-    case EMPLOYMENT_CONTRACT = "employment_contract";
-    case COMMISSION_CONTRACT = "commission_contract";
-    case B2B_CONTRACT = "b2b_contract";
-    case BOARD_MEMBER_CONTRACT = "board_member_contract";
+    case EmploymentContract = "employment_contract";
+    case ComissionContract = "commission_contract";
+    case B2bContract = "b2b_contract";
+    case BoardMemberContract = "board_member_contract";
 
     public function label(): string
     {
diff --git a/app/Domain/Enums/Role.php b/app/Domain/Enums/Role.php
index 7f6a996..f4be8b9 100644
--- a/app/Domain/Enums/Role.php
+++ b/app/Domain/Enums/Role.php
@@ -6,10 +6,10 @@ namespace Toby\Domain\Enums;
 
 enum Role: string
 {
-    case EMPLOYEE = "employee";
-    case ADMINISTRATOR = "administrator";
-    case TECHNICAL_APPROVER = "technical_approver";
-    case ADMINISTRATIVE_APPROVER = "administrative_approver";
+    case Employee = "employee";
+    case Administrator = "administrator";
+    case TechnicalApprover = "technical_approver";
+    case AdministrativeApprover = "administrative_approver";
 
     public function label(): string
     {
diff --git a/app/Domain/Enums/VacationRequestState.php b/app/Domain/Enums/VacationRequestState.php
index cd7ec57..7fcbae5 100644
--- a/app/Domain/Enums/VacationRequestState.php
+++ b/app/Domain/Enums/VacationRequestState.php
@@ -6,14 +6,14 @@ namespace Toby\Domain\Enums;
 
 enum VacationRequestState: string
 {
-    case CREATED = "created";
-    case CANCELED = "canceled";
-    case REJECTED = "rejected";
-    case APPROVED = "approved";
-    case WAITING_FOR_TECHNICAL = "waiting_for_technical";
-    case WAITING_FOR_ADMINISTRATIVE = "waiting_for_administrative";
-    case ACCEPTED_BY_TECHNICAL = "accepted_by_technical";
-    case ACCEPTED_BY_ADMINSTRATIVE = "accepted_by_administrative";
+    case Created = "created";
+    case Canceled = "canceled";
+    case Rejected = "rejected";
+    case Approved = "approved";
+    case WaitingForTechnical = "waiting_for_technical";
+    case WaitingForAdministrative = "waiting_for_administrative";
+    case AcceptedByTechnical = "accepted_by_technical";
+    case AcceptedByAdministrative = "accepted_by_administrative";
 
     public function label(): string
     {
@@ -23,24 +23,24 @@ enum VacationRequestState: string
     public static function pendingStates(): array
     {
         return [
-            self::CREATED,
-            self::WAITING_FOR_TECHNICAL,
-            self::WAITING_FOR_ADMINISTRATIVE,
-            self::ACCEPTED_BY_TECHNICAL,
-            self::ACCEPTED_BY_ADMINSTRATIVE,
+            self::Created,
+            self::WaitingForTechnical,
+            self::WaitingForAdministrative,
+            self::AcceptedByTechnical,
+            self::AcceptedByAdministrative,
         ];
     }
 
     public static function successStates(): array
     {
-        return [self::APPROVED];
+        return [self::Approved];
     }
 
     public static function failedStates(): array
     {
         return [
-            self::REJECTED,
-            self::CANCELED,
+            self::Rejected,
+            self::Canceled,
         ];
     }
 
diff --git a/app/Domain/Enums/VacationType.php b/app/Domain/Enums/VacationType.php
index c3502c8..63e2858 100644
--- a/app/Domain/Enums/VacationType.php
+++ b/app/Domain/Enums/VacationType.php
@@ -6,15 +6,15 @@ namespace Toby\Domain\Enums;
 
 enum VacationType: string
 {
-    case VACATION = "vacation";
-    case VACATION_ON_REQUEST = "vacation_on_request";
-    case SPECIAL_VACATION = "special_vacation";
-    case CHILDCARE_VACATION = "childcare_vacation";
-    case TRAINING_VACATION = "training_vacation";
-    case UNPAID_VACATION = "unpaid_vacation";
-    case VOLUNTEERING_VACATION = "volunteering_vacation";
-    case TIME_IN_LIEU = "time_in_lieu";
-    case SICK_VACATION = "sick_vacation";
+    case Vacation = "vacation";
+    case OnRequest = "vacation_on_request";
+    case Special = "special_vacation";
+    case Childcare = "childcare_vacation";
+    case Training = "training_vacation";
+    case Unpaid = "unpaid_vacation";
+    case Volunteering = "volunteering_vacation";
+    case TimeInLieu = "time_in_lieu";
+    case Sick = "sick_vacation";
 
     public function label(): string
     {
diff --git a/app/Domain/VacationDaysCalculator.php b/app/Domain/VacationDaysCalculator.php
index fcbc9e8..0e41a4a 100644
--- a/app/Domain/VacationDaysCalculator.php
+++ b/app/Domain/VacationDaysCalculator.php
@@ -16,7 +16,7 @@ class VacationDaysCalculator
         $period = CarbonPeriod::create($from, $to);
         $holidays = $yearPeriod->holidays()->pluck("date");
 
-        $validDays = collect();
+        $validDays = new Collection();
 
         foreach ($period as $day) {
             if ($this->passes($day, $holidays)) {
diff --git a/app/Domain/VacationRequestStateManager.php b/app/Domain/VacationRequestStateManager.php
index 8bee7c7..7de8484 100644
--- a/app/Domain/VacationRequestStateManager.php
+++ b/app/Domain/VacationRequestStateManager.php
@@ -23,50 +23,50 @@ class VacationRequestStateManager
 
     public function markAsCreated(VacationRequest $vacationRequest): void
     {
-        $this->changeState($vacationRequest, VacationRequestState::CREATED);
+        $this->changeState($vacationRequest, VacationRequestState::Created);
 
         $this->dispatcher->dispatch(new VacationRequestCreated($vacationRequest));
     }
 
     public function approve(VacationRequest $vacationRequest): void
     {
-        $this->changeState($vacationRequest, VacationRequestState::APPROVED);
+        $this->changeState($vacationRequest, VacationRequestState::Approved);
 
         $this->dispatcher->dispatch(new VacationRequestApproved($vacationRequest));
     }
 
     public function reject(VacationRequest $vacationRequest): void
     {
-        $this->changeState($vacationRequest, VacationRequestState::REJECTED);
+        $this->changeState($vacationRequest, VacationRequestState::Rejected);
     }
 
     public function cancel(VacationRequest $vacationRequest): void
     {
-        $this->changeState($vacationRequest, VacationRequestState::CANCELED);
+        $this->changeState($vacationRequest, VacationRequestState::Canceled);
     }
 
     public function acceptAsTechnical(VacationRequest $vacationRequest): void
     {
-        $this->changeState($vacationRequest, VacationRequestState::ACCEPTED_BY_TECHNICAL);
+        $this->changeState($vacationRequest, VacationRequestState::AcceptedByTechnical);
 
         $this->dispatcher->dispatch(new VacationRequestAcceptedByTechnical($vacationRequest));
     }
 
     public function acceptAsAdministrative(VacationRequest $vacationRequest): void
     {
-        $this->changeState($vacationRequest, VacationRequestState::ACCEPTED_BY_ADMINSTRATIVE);
+        $this->changeState($vacationRequest, VacationRequestState::AcceptedByAdministrative);
 
         $this->dispatcher->dispatch(new VacationRequestAcceptedByAdministrative($vacationRequest));
     }
 
     public function waitForTechnical(VacationRequest $vacationRequest): void
     {
-        $this->changeState($vacationRequest, VacationRequestState::WAITING_FOR_TECHNICAL);
+        $this->changeState($vacationRequest, VacationRequestState::WaitingForTechnical);
     }
 
     public function waitForAdministrative(VacationRequest $vacationRequest): void
     {
-        $this->changeState($vacationRequest, VacationRequestState::WAITING_FOR_ADMINISTRATIVE);
+        $this->changeState($vacationRequest, VacationRequestState::WaitingForAdministrative);
     }
 
     protected function changeState(VacationRequest $vacationRequest, VacationRequestState $state): void
diff --git a/app/Domain/Validation/Rules/DoesNotExceedLimitRule.php b/app/Domain/Validation/Rules/DoesNotExceedLimitRule.php
index c9c4148..c8c9ab5 100644
--- a/app/Domain/Validation/Rules/DoesNotExceedLimitRule.php
+++ b/app/Domain/Validation/Rules/DoesNotExceedLimitRule.php
@@ -4,23 +4,64 @@ declare(strict_types=1);
 
 namespace Toby\Domain\Validation\Rules;
 
+use Illuminate\Database\Eloquent\Builder;
+use Illuminate\Database\Eloquent\Collection;
+use Toby\Domain\Enums\VacationRequestState;
+use Toby\Domain\Enums\VacationType;
+use Toby\Domain\VacationDaysCalculator;
 use Toby\Domain\VacationTypeConfigRetriever;
+use Toby\Eloquent\Models\User;
 use Toby\Eloquent\Models\VacationRequest;
+use Toby\Eloquent\Models\YearPeriod;
 
 class DoesNotExceedLimitRule implements VacationRequestRule
 {
     public function __construct(
         protected VacationTypeConfigRetriever $configRetriever,
+        protected VacationDaysCalculator $vacationDaysCalculator,
     ) {
     }
 
     public function check(VacationRequest $vacationRequest): bool
     {
-        return true;
+        if (!$this->configRetriever->hasLimit($vacationRequest->type)) {
+            return true;
+        }
+
+        $limit = $this->getUserVacationLimit($vacationRequest->user, $vacationRequest->yearPeriod);
+        $vacationDays = $this->getVacationDaysWithLimit($vacationRequest->user, $vacationRequest->yearPeriod);
+        $estimatedDays = $this->vacationDaysCalculator->calculateDays($vacationRequest->yearPeriod, $vacationRequest->from, $vacationRequest->to)->count();
+
+        return $limit >= ($vacationDays + $estimatedDays);
     }
 
     public function errorMessage(): string
     {
-        return __("You have exceeded your vacation limit.");
+        return __("Vacation limit has been exceeded.");
+    }
+
+    protected function getUserVacationLimit(User $user, YearPeriod $yearPeriod): int
+    {
+        return $user->vacationLimits()->where("year_period_id", $yearPeriod->id)->first()->days ?? 0;
+    }
+
+    protected function getVacationDaysWithLimit(User $user, YearPeriod $yearPeriod): int
+    {
+        return $user->vacations()
+            ->where("year_period_id", $yearPeriod->id)
+            ->whereRelation(
+                "vacationRequest",
+                fn(Builder $query) => $query
+                    ->whereIn("type", $this->getLimitableVacationTypes())
+                    ->noStates(VacationRequestState::failedStates()),
+            )
+            ->count();
+    }
+
+    protected function getLimitableVacationTypes(): Collection
+    {
+        $types = new Collection(VacationType::cases());
+
+        return $types->filter(fn(VacationType $type) => $this->configRetriever->hasLimit($type));
     }
 }
diff --git a/app/Eloquent/Models/User.php b/app/Eloquent/Models/User.php
index 6a7c4db..1f8c6e3 100644
--- a/app/Eloquent/Models/User.php
+++ b/app/Eloquent/Models/User.php
@@ -28,6 +28,7 @@ use Toby\Domain\Enums\Role;
  * @property Carbon $employment_date
  * @property Collection $vacationLimits
  * @property Collection $vacationRequests
+ * @property Collection $vacations
  */
 class User extends Authenticatable
 {
@@ -57,6 +58,11 @@ class User extends Authenticatable
         return $this->hasMany(VacationRequest::class);
     }
 
+    public function vacations(): HasMany
+    {
+        return $this->hasMany(Vacation::class);
+    }
+
     public function scopeSearch(Builder $query, ?string $text): Builder
     {
         if ($text === null) {
diff --git a/app/Eloquent/Models/Vacation.php b/app/Eloquent/Models/Vacation.php
new file mode 100644
index 0000000..c22cf76
--- /dev/null
+++ b/app/Eloquent/Models/Vacation.php
@@ -0,0 +1,43 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Toby\Eloquent\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+use Illuminate\Support\Carbon;
+
+/**
+ * @property int $id
+ * @property Carbon $date
+ * @property User $user
+ * @property VacationRequest $vacationRequest
+ * @property YearPeriod $yearPeriod
+ */
+class Vacation extends Model
+{
+    use HasFactory;
+
+    public $timestamps = false;
+    protected $guarded = [];
+    protected $casts = [
+        "date" => "date",
+    ];
+
+    public function user(): BelongsTo
+    {
+        return $this->belongsTo(User::class);
+    }
+
+    public function vacationRequest(): BelongsTo
+    {
+        return $this->belongsTo(VacationRequest::class);
+    }
+
+    public function yearPeriod(): BelongsTo
+    {
+        return $this->belongsTo(YearPeriod::class);
+    }
+}
diff --git a/app/Eloquent/Models/VacationRequest.php b/app/Eloquent/Models/VacationRequest.php
index 0a81620..f8d29b9 100644
--- a/app/Eloquent/Models/VacationRequest.php
+++ b/app/Eloquent/Models/VacationRequest.php
@@ -21,11 +21,11 @@ use Toby\Domain\Enums\VacationType;
  * @property VacationRequestState $state
  * @property Carbon $from
  * @property Carbon $to
- * @property int $estimated_days
  * @property string $comment
  * @property User $user
  * @property YearPeriod $yearPeriod
  * @property Collection $activities
+ * @property Collection $vacations
  * @property Carbon $created_at
  * @property Carbon $updated_at
  */
@@ -57,6 +57,11 @@ class VacationRequest extends Model
         return $this->hasMany(VacationRequestActivity::class);
     }
 
+    public function vacations(): HasMany
+    {
+        return $this->hasMany(Vacation::class);
+    }
+
     public function changeStateTo(VacationRequestState $state): void
     {
         $this->state = $state;
@@ -69,6 +74,11 @@ class VacationRequest extends Model
         return $query->whereIn("state", $states);
     }
 
+    public function scopeNoStates(Builder $query, array $states): Builder
+    {
+        return $query->whereNotIn("state", $states);
+    }
+
     public function scopeOverlapsWith(Builder $query, self $vacationRequest): Builder
     {
         return $query->where("from", "<=", $vacationRequest->to)
diff --git a/app/Infrastructure/Http/Controllers/VacationCalendarController.php b/app/Infrastructure/Http/Controllers/VacationCalendarController.php
new file mode 100644
index 0000000..d37cce6
--- /dev/null
+++ b/app/Infrastructure/Http/Controllers/VacationCalendarController.php
@@ -0,0 +1,38 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Toby\Infrastructure\Http\Controllers;
+
+use Illuminate\Http\Request;
+use Illuminate\Support\Carbon;
+use Illuminate\Support\Str;
+use Inertia\Response;
+use Toby\Domain\CalendarGenerator;
+use Toby\Eloquent\Helpers\YearPeriodRetriever;
+use Toby\Eloquent\Models\User;
+use Toby\Infrastructure\Http\Resources\UserResource;
+
+class VacationCalendarController extends Controller
+{
+    public function index(
+        Request $request,
+        YearPeriodRetriever $yearPeriodRetriever,
+        CalendarGenerator $calendarGenerator,
+    ): Response {
+        $month = Str::lower($request->query("month", Carbon::now()->englishMonth));
+        $yearPeriod = $yearPeriodRetriever->selected();
+        $users = User::query()
+            ->orderBy("last_name")
+            ->orderBy("first_name")
+            ->get();
+
+        $calendar = $calendarGenerator->generate($yearPeriod, $month);
+
+        return inertia("Calendar", [
+            "calendar" => $calendar,
+            "currentMonth" => $month,
+            "users" => UserResource::collection($users),
+        ]);
+    }
+}
diff --git a/app/Infrastructure/Http/Controllers/VacationRequestController.php b/app/Infrastructure/Http/Controllers/VacationRequestController.php
index ca8be78..814b35d 100644
--- a/app/Infrastructure/Http/Controllers/VacationRequestController.php
+++ b/app/Infrastructure/Http/Controllers/VacationRequestController.php
@@ -24,16 +24,21 @@ class VacationRequestController extends Controller
 {
     public function index(Request $request, YearPeriodRetriever $yearPeriodRetriever): Response
     {
+        $status = $request->get("status", "all");
+
         $vacationRequests = $request->user()
             ->vacationRequests()
+            ->with("vacations")
             ->where("year_period_id", $yearPeriodRetriever->selected()->id)
             ->latest()
-            ->states(VacationRequestState::filterByStatus($request->query("status", "all")))
+            ->states(VacationRequestState::filterByStatus($status))
             ->paginate();
 
         return inertia("VacationRequest/Index", [
             "requests" => VacationRequestResource::collection($vacationRequests),
-            "filters" => $request->only("status"),
+            "filters" => [
+                "status" => $status,
+            ],
         ]);
     }
 
@@ -69,15 +74,24 @@ class VacationRequestController extends Controller
     ): RedirectResponse {
         /** @var VacationRequest $vacationRequest */
         $vacationRequest = $request->user()->vacationRequests()->make($request->data());
-        $vacationRequest->estimated_days = $vacationDaysCalculator->calculateDays(
-            $vacationRequest->yearPeriod,
-            $vacationRequest->from,
-            $vacationRequest->to,
-        )->count();
-
         $vacationRequestValidator->validate($vacationRequest);
 
         $vacationRequest->save();
+
+        $days = $vacationDaysCalculator->calculateDays(
+            $vacationRequest->yearPeriod,
+            $vacationRequest->from,
+            $vacationRequest->to,
+        );
+
+        foreach ($days as $day) {
+            $vacationRequest->vacations()->create([
+                "date" => $day,
+                "user_id" => $vacationRequest->user->id,
+                "year_period_id" => $vacationRequest->yearPeriod->id,
+            ]);
+        }
+
         $stateManager->markAsCreated($vacationRequest);
 
         return redirect()
diff --git a/app/Infrastructure/Http/Resources/VacationRequestActivityResource.php b/app/Infrastructure/Http/Resources/VacationRequestActivityResource.php
index dcc11d2..c513785 100644
--- a/app/Infrastructure/Http/Resources/VacationRequestActivityResource.php
+++ b/app/Infrastructure/Http/Resources/VacationRequestActivityResource.php
@@ -13,9 +13,11 @@ class VacationRequestActivityResource extends JsonResource
     public function toArray($request): array
     {
         return [
-            "date" => $this->created_at->toDisplayString(),
-            "who" => $this->user ? $this->user->fullName : __("System"),
-            "to" => $this->to->label(),
+            "date" => $this->created_at->format("d.m.Y"),
+            "time" => $this->created_at->format("H:i"),
+            "user" => $this->user ? $this->user->fullName : __("System"),
+            "state" => $this->to,
+            "text" => $this->to->label(),
         ];
     }
 }
diff --git a/app/Infrastructure/Http/Resources/VacationRequestResource.php b/app/Infrastructure/Http/Resources/VacationRequestResource.php
index 009eeb6..112d7a0 100644
--- a/app/Infrastructure/Http/Resources/VacationRequestResource.php
+++ b/app/Infrastructure/Http/Resources/VacationRequestResource.php
@@ -17,11 +17,11 @@ class VacationRequestResource extends JsonResource
             "name" => $this->name,
             "user" => new UserResource($this->user),
             "type" => $this->type->label(),
-            "state" => $this->state->label(),
+            "state" => $this->state,
             "from" => $this->from->toDisplayString(),
             "to" => $this->to->toDisplayString(),
-            "estimatedDays" => $this->estimated_days,
             "comment" => $this->comment,
+            "days" => VacationResource::collection($this->vacations),
         ];
     }
 }
diff --git a/app/Infrastructure/Http/Resources/VacationResource.php b/app/Infrastructure/Http/Resources/VacationResource.php
new file mode 100644
index 0000000..e9590e3
--- /dev/null
+++ b/app/Infrastructure/Http/Resources/VacationResource.php
@@ -0,0 +1,21 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Toby\Infrastructure\Http\Resources;
+
+use Illuminate\Http\Resources\Json\JsonResource;
+
+class VacationResource extends JsonResource
+{
+    public static $wrap = null;
+
+    public function toArray($request): array
+    {
+        return [
+            "id" => $this->id,
+            "displayDate" => $this->date->toDisplayString(),
+            "date" => $this->date->toDateString(),
+        ];
+    }
+}
diff --git a/config/vacation_types.php b/config/vacation_types.php
index 5039dfe..45a5900 100644
--- a/config/vacation_types.php
+++ b/config/vacation_types.php
@@ -6,55 +6,55 @@ use Toby\Domain\Enums\VacationType;
 use Toby\Domain\VacationTypeConfigRetriever;
 
 return [
-    VacationType::VACATION->value => [
+    VacationType::Vacation->value => [
         VacationTypeConfigRetriever::KEY_TECHNICAL_APPROVAL => true,
         VacationTypeConfigRetriever::KEY_ADMINISTRATIVE_APPROVAL => true,
         VacationTypeConfigRetriever::KEY_BILLABLE => true,
         VacationTypeConfigRetriever::KEY_HAS_LIMIT => true,
     ],
-    VacationType::VACATION_ON_REQUEST->value => [
+    VacationType::OnRequest->value => [
         VacationTypeConfigRetriever::KEY_TECHNICAL_APPROVAL => true,
         VacationTypeConfigRetriever::KEY_ADMINISTRATIVE_APPROVAL => true,
         VacationTypeConfigRetriever::KEY_BILLABLE => true,
         VacationTypeConfigRetriever::KEY_HAS_LIMIT => true,
     ],
-    VacationType::TIME_IN_LIEU->value => [
+    VacationType::TimeInLieu->value => [
         VacationTypeConfigRetriever::KEY_TECHNICAL_APPROVAL => false,
         VacationTypeConfigRetriever::KEY_ADMINISTRATIVE_APPROVAL => false,
         VacationTypeConfigRetriever::KEY_BILLABLE => true,
         VacationTypeConfigRetriever::KEY_HAS_LIMIT => false,
     ],
-    VacationType::SICK_VACATION->value => [
+    VacationType::Sick->value => [
         VacationTypeConfigRetriever::KEY_TECHNICAL_APPROVAL => false,
         VacationTypeConfigRetriever::KEY_ADMINISTRATIVE_APPROVAL => true,
         VacationTypeConfigRetriever::KEY_BILLABLE => true,
         VacationTypeConfigRetriever::KEY_HAS_LIMIT => false,
     ],
-    VacationType::UNPAID_VACATION->value => [
+    VacationType::Unpaid->value => [
         VacationTypeConfigRetriever::KEY_TECHNICAL_APPROVAL => true,
         VacationTypeConfigRetriever::KEY_ADMINISTRATIVE_APPROVAL => true,
         VacationTypeConfigRetriever::KEY_BILLABLE => false,
         VacationTypeConfigRetriever::KEY_HAS_LIMIT => false,
     ],
-    VacationType::SPECIAL_VACATION->value => [
+    VacationType::Special->value => [
         VacationTypeConfigRetriever::KEY_TECHNICAL_APPROVAL => true,
         VacationTypeConfigRetriever::KEY_ADMINISTRATIVE_APPROVAL => true,
         VacationTypeConfigRetriever::KEY_BILLABLE => false,
         VacationTypeConfigRetriever::KEY_HAS_LIMIT => false,
     ],
-    VacationType::CHILDCARE_VACATION->value => [
+    VacationType::Childcare->value => [
         VacationTypeConfigRetriever::KEY_TECHNICAL_APPROVAL => true,
         VacationTypeConfigRetriever::KEY_ADMINISTRATIVE_APPROVAL => true,
         VacationTypeConfigRetriever::KEY_BILLABLE => false,
         VacationTypeConfigRetriever::KEY_HAS_LIMIT => false,
     ],
-    VacationType::TRAINING_VACATION->value => [
+    VacationType::Training->value => [
         VacationTypeConfigRetriever::KEY_TECHNICAL_APPROVAL => true,
         VacationTypeConfigRetriever::KEY_ADMINISTRATIVE_APPROVAL => true,
         VacationTypeConfigRetriever::KEY_BILLABLE => true,
         VacationTypeConfigRetriever::KEY_HAS_LIMIT => false,
     ],
-    VacationType::VOLUNTEERING_VACATION->value => [
+    VacationType::Volunteering->value => [
         VacationTypeConfigRetriever::KEY_TECHNICAL_APPROVAL => true,
         VacationTypeConfigRetriever::KEY_ADMINISTRATIVE_APPROVAL => true,
         VacationTypeConfigRetriever::KEY_BILLABLE => true,
diff --git a/database/factories/UserFactory.php b/database/factories/UserFactory.php
index c6a5d93..23f0ea4 100644
--- a/database/factories/UserFactory.php
+++ b/database/factories/UserFactory.php
@@ -23,7 +23,7 @@ class UserFactory extends Factory
             "email" => $this->faker->unique()->safeEmail(),
             "employment_form" => $this->faker->randomElement(EmploymentForm::cases()),
             "position" => $this->faker->jobTitle(),
-            "role" => Role::EMPLOYEE,
+            "role" => Role::Employee,
             "employment_date" => Carbon::createFromInterface($this->faker->dateTimeBetween("2020-10-27"))->toDateString(),
             "remember_token" => Str::random(10),
         ];
diff --git a/database/factories/VacationFactory.php b/database/factories/VacationFactory.php
new file mode 100644
index 0000000..d70c43d
--- /dev/null
+++ b/database/factories/VacationFactory.php
@@ -0,0 +1,15 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Database\Factories;
+
+use Illuminate\Database\Eloquent\Factories\Factory;
+
+class VacationFactory extends Factory
+{
+    public function definition(): array
+    {
+        return [];
+    }
+}
diff --git a/database/factories/VacationRequestFactory.php b/database/factories/VacationRequestFactory.php
index 3939367..4816781 100644
--- a/database/factories/VacationRequestFactory.php
+++ b/database/factories/VacationRequestFactory.php
@@ -5,7 +5,6 @@ declare(strict_types=1);
 namespace Database\Factories;
 
 use Carbon\CarbonImmutable;
-use Carbon\CarbonPeriod;
 use Illuminate\Database\Eloquent\Factories\Factory;
 use Toby\Domain\Enums\VacationRequestState;
 use Toby\Domain\Enums\VacationType;
@@ -31,7 +30,6 @@ class VacationRequestFactory extends Factory
             "state" => $this->faker->randomElement(VacationRequestState::cases()),
             "from" => $from,
             "to" => $from->addDays($days),
-            "estimated_days" => fn(array $attributes) => $this->estimateDays($attributes),
             "comment" => $this->faker->boolean ? $this->faker->paragraph() : null,
         ];
     }
@@ -43,11 +41,4 @@ class VacationRequestFactory extends Factory
 
         return "{$number}/{$year}";
     }
-
-    protected function estimateDays(array $attributes): int
-    {
-        $period = CarbonPeriod::create($attributes["from"], $attributes["to"]);
-
-        return $period->count();
-    }
 }
diff --git a/database/migrations/2014_10_12_000000_create_users_table.php b/database/migrations/2014_10_12_000000_create_users_table.php
index 5f09111..7b3f574 100644
--- a/database/migrations/2014_10_12_000000_create_users_table.php
+++ b/database/migrations/2014_10_12_000000_create_users_table.php
@@ -16,7 +16,7 @@ return new class() extends Migration {
             $table->string("last_name");
             $table->string("email")->unique();
             $table->string("avatar")->nullable();
-            $table->string("role")->default(Role::EMPLOYEE->value);
+            $table->string("role")->default(Role::Employee->value);
             $table->string("position");
             $table->string("employment_form");
             $table->date("employment_date");
diff --git a/database/migrations/2022_01_26_100039_create_vacation_requests_table.php b/database/migrations/2022_01_26_100039_create_vacation_requests_table.php
index b3f4e48..f5270da 100644
--- a/database/migrations/2022_01_26_100039_create_vacation_requests_table.php
+++ b/database/migrations/2022_01_26_100039_create_vacation_requests_table.php
@@ -18,7 +18,6 @@ return new class() extends Migration {
             $table->foreignIdFor(YearPeriod::class)->constrained()->cascadeOnDelete();
             $table->string("type");
             $table->string("state")->nullable();
-            $table->integer("estimated_days");
             $table->date("from");
             $table->date("to");
             $table->text("comment")->nullable();
diff --git a/database/migrations/2022_02_07_133018_create_vacations_table.php b/database/migrations/2022_02_07_133018_create_vacations_table.php
new file mode 100644
index 0000000..648be3c
--- /dev/null
+++ b/database/migrations/2022_02_07_133018_create_vacations_table.php
@@ -0,0 +1,28 @@
+<?php
+
+declare(strict_types=1);
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+use Toby\Eloquent\Models\User;
+use Toby\Eloquent\Models\VacationRequest;
+use Toby\Eloquent\Models\YearPeriod;
+
+return new class() extends Migration {
+    public function up(): void
+    {
+        Schema::create("vacations", function (Blueprint $table): void {
+            $table->id();
+            $table->foreignIdFor(User::class)->constrained()->cascadeOnDelete();
+            $table->foreignIdFor(VacationRequest::class)->constrained()->cascadeOnDelete();
+            $table->foreignIdFor(YearPeriod::class)->constrained()->cascadeOnDelete();
+            $table->date("date");
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::dropIfExists("vacations");
+    }
+};
diff --git a/database/seeders/DatabaseSeeder.php b/database/seeders/DatabaseSeeder.php
index 205246a..614d712 100644
--- a/database/seeders/DatabaseSeeder.php
+++ b/database/seeders/DatabaseSeeder.php
@@ -8,6 +8,7 @@ use Illuminate\Database\Seeder;
 use Illuminate\Support\Carbon;
 use Illuminate\Support\Collection;
 use Toby\Domain\PolishHolidaysRetriever;
+use Toby\Domain\VacationDaysCalculator;
 use Toby\Eloquent\Helpers\UserAvatarGenerator;
 use Toby\Eloquent\Models\User;
 use Toby\Eloquent\Models\VacationLimit;
@@ -79,6 +80,21 @@ class DatabaseSeeder extends Seeder
                 ->sequence(fn() => [
                     "year_period_id" => $yearPeriods->random()->id,
                 ])
+                ->afterCreating(function (VacationRequest $vacationRequest): void {
+                    $days = app(VacationDaysCalculator::class)->calculateDays(
+                        $vacationRequest->yearPeriod,
+                        $vacationRequest->from,
+                        $vacationRequest->to,
+                    );
+
+                    foreach ($days as $day) {
+                        $vacationRequest->vacations()->create([
+                            "date" => $day,
+                            "user_id" => $vacationRequest->user->id,
+                            "year_period_id" => $vacationRequest->yearPeriod->id,
+                        ]);
+                    }
+                })
                 ->create();
         }
     }
diff --git a/resources/js/Composables/monthInfo.js b/resources/js/Composables/monthInfo.js
new file mode 100644
index 0000000..3d7af0a
--- /dev/null
+++ b/resources/js/Composables/monthInfo.js
@@ -0,0 +1,60 @@
+const months = [
+  {
+    'name': 'Styczeń',
+    'value': 'january',
+  },
+  {
+    'name': 'Luty',
+    'value': 'february',
+  },
+  {
+    'name': 'Marzec',
+    'value': 'march',
+  },
+  {
+    'name': 'Kwiecień',
+    'value': 'april',
+  },
+  {
+    'name': 'Maj',
+    'value': 'may',
+  },
+  {
+    'name': 'Czerwiec',
+    'value': 'june',
+  },
+  {
+    'name': 'Lipiec',
+    'value': 'july',
+  },
+  {
+    'name': 'Sierpień',
+    'value': 'august',
+  },
+  {
+    'name': 'Wrzesień',
+    'value': 'september',
+  },
+  {
+    'name': 'Październik',
+    'value': 'october',
+  },
+  {
+    'name': 'Listopad',
+    'value': 'november',
+  },
+  {
+    'name': 'Grudzień',
+    'value': 'december',
+  },
+]
+
+export function useMonthInfo() {
+  const getMonths = () => months
+  const findMonth = value => months.find(month => month.value === value)
+
+  return {
+    getMonths,
+    findMonth,
+  }
+}
diff --git a/resources/js/Composables/statusInfo.js b/resources/js/Composables/statusInfo.js
new file mode 100644
index 0000000..94026d7
--- /dev/null
+++ b/resources/js/Composables/statusInfo.js
@@ -0,0 +1,128 @@
+import {
+  CheckIcon as OutlineCheckIcon,
+  ClockIcon as OutlineClockIcon,
+  DocumentTextIcon as OutlineDocumentTextIcon,
+  ThumbDownIcon as OutlineThumbDownIcon,
+  ThumbUpIcon as OutlineThumbUpIcon,
+  XIcon as OutlineXIcon,
+} from '@heroicons/vue/outline'
+
+import {
+  CheckIcon as SolidCheckIcon,
+  ClockIcon as SolidClockIcon,
+  DocumentTextIcon as SolidDocumentTextIcon,
+  ThumbDownIcon as SolidThumbDownIcon,
+  ThumbUpIcon as SolidThumbUpIcon,
+  XIcon as SolidXIcon,
+} from '@heroicons/vue/solid'
+
+const statuses = [
+  {
+    text: 'Utworzony',
+    value: 'created',
+    outline: {
+      icon: OutlineDocumentTextIcon,
+      foreground: 'text-white',
+      background: 'bg-gray-400',
+    },
+    solid: {
+      icon: SolidDocumentTextIcon,
+      color: 'text-gray-400',
+    },
+  },
+  {
+    text: 'Czeka na akceptację od przełożonego technicznego',
+    value: 'waiting_for_technical',
+    outline: {
+      icon: OutlineClockIcon,
+      foreground: 'text-white',
+      background: 'bg-amber-400',
+    },
+    solid: {
+      icon: SolidClockIcon,
+      color: 'text-amber-400',
+    },
+  },
+  {
+    text: 'Czeka na akceptację od przełożonego administracyjnego',
+    value: 'waiting_for_administrative',
+    outline: {
+      icon: OutlineClockIcon,
+      foreground: 'text-white',
+      background: 'bg-amber-400',
+    },
+    solid: {
+      icon: SolidClockIcon,
+      color: 'text-amber-400',
+    },
+  },
+  {
+    text: 'Odrzucony',
+    value: 'rejected',
+    outline: {
+      icon: OutlineThumbDownIcon,
+      foreground: 'text-white',
+      background: 'bg-rose-600',
+    },
+    solid: {
+      icon: SolidThumbDownIcon,
+      color: 'text-rose-600',
+    },
+  },
+  {
+    text: 'Zaakceptowany przez przełożonego technicznego',
+    value: 'accepted_by_technical',
+    outline: {
+      icon: OutlineThumbUpIcon,
+      foreground: 'text-white',
+      background: 'bg-green-500',
+    },
+    solid: {
+      icon: SolidThumbUpIcon,
+      color: 'text-green-500',
+    },
+  },
+  {
+    text: 'Zaakceptowany przez przełożonego administracyjnego',
+    value: 'accepted_by_administrative',
+    outline: {
+      icon: OutlineThumbUpIcon,
+      foreground: 'text-white',
+      background: 'bg-green-500',
+    },
+    solid: {
+      icon: SolidThumbUpIcon,
+      color: 'text-green-500',
+    },
+  },
+  {
+    text: 'Zatwierdzony',
+    value: 'approved',
+    outline: {
+      icon: OutlineCheckIcon,
+      foreground: 'text-white',
+      background: 'bg-blumilk-500',
+    },
+    solid: {
+      icon: SolidCheckIcon,
+      color: 'text-blumilk-500',
+    },
+  },
+  {
+    text: 'Anulowany',
+    value: 'canceled',
+    outline: {
+      icon: OutlineXIcon,
+      foreground: 'text-white',
+      background: 'bg-gray-900',
+    },
+    solid: {
+      icon: SolidXIcon,
+      color: 'text-gray-900',
+    },
+  },
+]
+
+export function useStatusInfo(status) {
+  return statuses.find(statusInfo => statusInfo.value === status)
+}
diff --git a/resources/js/Pages/Calendar.vue b/resources/js/Pages/Calendar.vue
new file mode 100644
index 0000000..1415b0a
--- /dev/null
+++ b/resources/js/Pages/Calendar.vue
@@ -0,0 +1,167 @@
+<template>
+  <InertiaHead title="Kalendarz urlopów" />
+  <div class="bg-white shadow-md">
+    <div class="p-4 sm:px-6">
+      <h2 class="text-lg leading-6 font-medium text-gray-900">
+        Kalendarz urlopów
+      </h2>
+    </div>
+    <div class="overflow-x-auto">
+      <table class="w-full text-center table-fixed text-sm border border-gray-300">
+        <thead>
+          <tr>
+            <th class="w-64 py-2 border border-gray-300">
+              <Menu
+                as="div"
+                class="relative inline-block text-left"
+              >
+                <div>
+                  <MenuButton
+                    class="inline-flex justify-center w-full rounded-md border border-gray-300 shadow-sm px-4 py-2 bg-white text-sm font-medium text-gray-700 hover:bg-gray-50 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-blumilk-500"
+                  >
+                    {{ selectedMonth.name }}
+                    <ChevronDownIcon class="-mr-1 ml-2 h-5 w-5" />
+                  </MenuButton>
+                </div>
+
+                <transition
+                  enter-active-class="transition ease-out duration-100"
+                  enter-from-class="transform opacity-0 scale-95"
+                  enter-to-class="transform opacity-100 scale-100"
+                  leave-active-class="transition ease-in duration-75"
+                  leave-from-class="transform opacity-100 scale-100"
+                  leave-to-class="transform opacity-0 scale-95"
+                >
+                  <MenuItems
+                    class="origin-top-right absolute right-0 mt-2 w-32 rounded-md shadow-lg bg-white ring-1 ring-black ring-opacity-5 focus:outline-none"
+                  >
+                    <div class="py-1">
+                      <MenuItem
+                        v-for="(month, index) in months"
+                        :key="index"
+                        v-slot="{ active }"
+                      >
+                        <InertiaLink
+                          href="/vacation-calendar"
+                          :data="{ month: month.value }"
+                          :class="[active ? 'bg-gray-100 text-gray-900' : 'text-gray-700', 'flex w-full font-normal px-4 py-2 text-sm']"
+                        >
+                          {{ month.name }}
+                          <CheckIcon
+                            v-if="currentMonth === month.value"
+                            class="h-5 w-5 text-blumilk-500 ml-2"
+                          />
+                        </InertiaLink>
+                      </MenuItem>
+                    </div>
+                  </MenuItems>
+                </transition>
+              </Menu>
+            </th>
+            <th
+              v-for="day in calendar"
+              :key="day.dayOfMonth"
+              class="border border-gray-300 text-lg font-semibold text-gray-900 py-4 px-2"
+              :class="{ 'text-blumilk-600 bg-blumilk-25 font-black': day.isToday }"
+            >
+              <div>
+                {{ day.dayOfMonth }}
+                <p class="font-normal mt-1 text-sm capitalize">
+                  {{ day.dayOfWeek }}
+                </p>
+              </div>
+            </th>
+          </tr>
+        </thead>
+        <tbody>
+          <tr
+            v-for="user in users.data"
+            :key="user.id"
+          >
+            <th class="border border-gray-300 py-2 px-4">
+              <div class="flex justify-start items-center">
+                <span class="inline-flex items-center justify-center h-10 w-10 rounded-full">
+                  <img
+                    class="h-10 w-10 rounded-full"
+                    :src="user.avatar"
+                  >
+                </span>
+                <div class="ml-3">
+                  <div class="text-sm font-medium text-gray-900">
+                    {{ user.name }}
+                  </div>
+                </div>
+              </div>
+            </th>
+            <td
+              v-for="day in calendar"
+              :key="day.dayOfMonth"
+              class="border border-gray-300"
+              :class="{'bg-red-100': day.isWeekend || day.isHoliday, 'bg-blumilk-500': day.vacations.includes(user.id) }"
+            >
+              <div
+                v-if="day.vacations.includes(user.id)"
+                class="flex justify-center items-center"
+              >
+                <svg
+                  class="w-6 h-6 text-white"
+                  xmlns="http://www.w3.org/2000/svg"
+                  viewBox="0 0 640 512"
+                >
+                  <path
+                    fill="currentColor"
+                    d="M115.38 136.9l102.11 37.18c35.19-81.54 86.21-144.29 139-173.7-95.88-4.89-188.78 36.96-248.53 111.8-6.69 8.4-2.66 21.05 7.42 24.72zm132.25 48.16l238.48 86.83c35.76-121.38 18.7-231.66-42.63-253.98-7.4-2.7-15.13-4-23.09-4-58.02.01-128.27 69.17-172.76 171.15zM521.48 60.5c6.22 16.3 10.83 34.6 13.2 55.19 5.74 49.89-1.42 108.23-18.95 166.98l102.62 37.36c10.09 3.67 21.31-3.43 21.57-14.17 2.32-95.69-41.91-187.44-118.44-245.36zM560 447.98H321.06L386 269.5l-60.14-21.9-72.9 200.37H16c-8.84 0-16 7.16-16 16.01v32.01C0 504.83 7.16 512 16 512h544c8.84 0 16-7.17 16-16.01v-32.01c0-8.84-7.16-16-16-16z"
+                  />
+                </svg>
+              </div>
+            </td>
+          </tr>
+        </tbody>
+      </table>
+    </div>
+  </div>
+</template>
+
+<script>
+import {Menu, MenuButton, MenuItem, MenuItems} from '@headlessui/vue'
+import {CheckIcon, ChevronDownIcon} from '@heroicons/vue/solid'
+import {computed} from 'vue'
+import {useMonthInfo} from '@/Composables/monthInfo'
+
+export default {
+  name: 'VacationCalendar',
+  components: {
+    Menu,
+    MenuButton,
+    MenuItem,
+    MenuItems,
+    CheckIcon,
+    ChevronDownIcon,
+  },
+  props: {
+    users: {
+      type: Object,
+      default: () => null,
+    },
+    calendar: {
+      type: Object,
+      default: () => null,
+    },
+    currentMonth: {
+      type: String,
+      default: () => 'january',
+    },
+  },
+  setup(props) {
+    const {getMonths, findMonth} = useMonthInfo()
+    const months = getMonths()
+
+    const selectedMonth = computed(() => findMonth(props.currentMonth))
+
+    return {
+      months,
+      selectedMonth,
+    }
+  },
+}
+</script>
diff --git a/resources/js/Pages/Dashboard.vue b/resources/js/Pages/Dashboard.vue
index 3232ab0..9051660 100644
--- a/resources/js/Pages/Dashboard.vue
+++ b/resources/js/Pages/Dashboard.vue
@@ -37,7 +37,7 @@
               <div class="mt-5 flex justify-center sm:mt-0">
                 <InertiaLink
                   href="#"
-                  class="flex justify-center items-center px-4 py-2 border border-gray-300 shadow-sm text-sm font-medium rounded-md text-gray-700 bg-white hover:bg-gray-50"
+                  class="inline-flex items-center px-4 py-3 border border-transparent text-sm leading-4 font-medium rounded-md shadow-sm text-white bg-blumilk-600 hover:bg-blumilk-700 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-blumilk-500"
                 >
                   View profile
                 </InertiaLink>
diff --git a/resources/js/Pages/Holidays/Create.vue b/resources/js/Pages/Holidays/Create.vue
index 0746c1b..b906242 100644
--- a/resources/js/Pages/Holidays/Create.vue
+++ b/resources/js/Pages/Holidays/Create.vue
@@ -1,6 +1,6 @@
 <template>
   <InertiaHead title="Dodaj dzień wolny" />
-  <div class="bg-white sm:rounded-lg shadow-md">
+  <div class="bg-white shadow-md">
     <div class="p-4 sm:px-6">
       <h2 class="text-lg leading-6 font-medium text-gray-900">
         Dodaj dzień wolny
diff --git a/resources/js/Pages/Holidays/Edit.vue b/resources/js/Pages/Holidays/Edit.vue
index 9f8e07b..ac6a590 100644
--- a/resources/js/Pages/Holidays/Edit.vue
+++ b/resources/js/Pages/Holidays/Edit.vue
@@ -1,6 +1,6 @@
 <template>
   <InertiaHead title="Edytuj dzień wolny" />
-  <div class="bg-white sm:rounded-lg shadow-md">
+  <div class="bg-white shadow-md">
     <div class="p-4 sm:px-6">
       <h2 class="text-lg leading-6 font-medium text-gray-900">
         Edytuj dzień wolny
diff --git a/resources/js/Pages/Holidays/Index.vue b/resources/js/Pages/Holidays/Index.vue
index 9b0469e..bd71b55 100644
--- a/resources/js/Pages/Holidays/Index.vue
+++ b/resources/js/Pages/Holidays/Index.vue
@@ -1,6 +1,6 @@
 <template>
   <InertiaHead title="Dni wolne od pracy" />
-  <div class="bg-white sm:rounded-lg shadow-md">
+  <div class="bg-white shadow-md">
     <div class="flex justify-between items-center p-4 sm:px-6">
       <div>
         <h2 class="text-lg leading-6 font-medium text-gray-900">
@@ -144,7 +144,7 @@ import { DotsVerticalIcon, PencilIcon, TrashIcon } from '@heroicons/vue/solid'
 import { Menu, MenuButton, MenuItem, MenuItems } from '@headlessui/vue'
 
 export default {
-  name: 'HolidayINdex',
+  name: 'HolidayIndex',
   components: {
     DotsVerticalIcon,
     PencilIcon,
diff --git a/resources/js/Pages/Users/Create.vue b/resources/js/Pages/Users/Create.vue
index b871b93..805784d 100644
--- a/resources/js/Pages/Users/Create.vue
+++ b/resources/js/Pages/Users/Create.vue
@@ -1,6 +1,6 @@
 <template>
   <InertiaHead title="Dodawanie użytkownika" />
-  <div class="bg-white sm:rounded-lg shadow-md">
+  <div class="bg-white shadow-md">
     <div class="p-4 sm:px-6">
       <h2 class="text-lg leading-6 font-medium text-gray-900">
         Dodaj użytkownika
diff --git a/resources/js/Pages/Users/Edit.vue b/resources/js/Pages/Users/Edit.vue
index d604273..d11c07a 100644
--- a/resources/js/Pages/Users/Edit.vue
+++ b/resources/js/Pages/Users/Edit.vue
@@ -1,6 +1,6 @@
 <template>
   <InertiaHead title="Edycja użytkownika" />
-  <div class="bg-white sm:rounded-lg shadow-md">
+  <div class="bg-white shadow-md">
     <div class="p-4 sm:px-6">
       <h2 class="text-lg leading-6 font-medium text-gray-900">
         Edytuj użytkownika
diff --git a/resources/js/Pages/Users/Index.vue b/resources/js/Pages/Users/Index.vue
index 93e6f10..7bb4bce 100644
--- a/resources/js/Pages/Users/Index.vue
+++ b/resources/js/Pages/Users/Index.vue
@@ -1,6 +1,6 @@
 <template>
   <InertiaHead title="Użytkownicy" />
-  <div class="bg-white sm:rounded-lg shadow-md">
+  <div class="bg-white shadow-md">
     <div class="flex justify-between items-center p-4 sm:px-6">
       <div>
         <h2 class="text-lg leading-6 font-medium text-gray-900">
diff --git a/resources/js/Pages/VacationLimits.vue b/resources/js/Pages/VacationLimits.vue
index ce6a748..1d2ce59 100644
--- a/resources/js/Pages/VacationLimits.vue
+++ b/resources/js/Pages/VacationLimits.vue
@@ -1,6 +1,6 @@
 <template>
   <InertiaHead title="Użytkownicy" />
-  <div class="bg-white sm:rounded-lg shadow-md">
+  <div class="bg-white shadow-md">
     <div class="flex justify-between items-center p-4 sm:px-6">
       <div>
         <h2 class="text-lg leading-6 font-medium text-gray-900">
diff --git a/resources/js/Pages/VacationRequest/Create.vue b/resources/js/Pages/VacationRequest/Create.vue
index d2cef55..bb8fb10 100644
--- a/resources/js/Pages/VacationRequest/Create.vue
+++ b/resources/js/Pages/VacationRequest/Create.vue
@@ -1,6 +1,6 @@
 <template>
   <InertiaHead title="Złóż wniosek urlopowy" />
-  <div class="bg-white sm:rounded-lg shadow-md">
+  <div class="bg-white shadow-md">
     <div class="p-4 sm:px-6">
       <h2 class="text-lg leading-6 font-medium text-gray-900">
         Złóż wniosek urlopowy
diff --git a/resources/js/Pages/VacationRequest/Index.vue b/resources/js/Pages/VacationRequest/Index.vue
index 4530d0e..49a30c0 100644
--- a/resources/js/Pages/VacationRequest/Index.vue
+++ b/resources/js/Pages/VacationRequest/Index.vue
@@ -1,6 +1,6 @@
 <template>
   <InertiaHead title="Twoje wnioski urlopowe" />
-  <div class="bg-white sm:rounded-lg shadow-md">
+  <div class="bg-white shadow-md">
     <div class="flex justify-between items-center p-4 sm:px-6">
       <div>
         <h2 class="text-lg leading-6 font-medium text-gray-900">
@@ -57,7 +57,7 @@
             </th>
             <th
               scope="col"
-              class="px-4 py-3 text-right text-xs font-semibold text-gray-500 uppercase tracking-wider"
+              class="px-4 py-3 text-left text-xs font-semibold text-gray-500 uppercase tracking-wider"
             >
               Dni urlopu
             </th>
@@ -84,7 +84,7 @@
                 {{ request.name }}
               </InertiaLink>
             </td>
-            <td class="px-4 py-4 whitespace-nowrap text-sm text-gray-500">
+            <td class="px-4 py-4 whitespace-nowrap text-sm font-medium text-gray-500">
               {{ request.type }}
             </td>
             <td class="px-4 py-4 whitespace-nowrap text-sm text-gray-500">
@@ -93,15 +93,18 @@
             <td class="px-4 py-4 whitespace-nowrap text-sm text-gray-500">
               {{ request.to }}
             </td>
-            <td class="px-4 py-4 whitespace-nowrap text-right text-sm text-gray-500">
-              {{ request.estimatedDays }}
+            <td class="px-4 py-4 whitespace-nowrap text-sm text-gray-500">
+              {{ request.days.length }}
             </td>
             <td class="px-4 py-4 whitespace-nowrap text-sm text-gray-500">
-              {{ request.state }}
+              <Status :status="request.state" />
             </td>
             <td class="px-4 py-4 whitespace-nowrap text-sm text-gray-500">
-              <InertiaLink :href="`/vacation-requests/${request.id}`">
-                <ChevronRightIcon class="block w-6 h-6 fill-gray-400" />
+              <InertiaLink
+                :href="`/vacation-requests/${request.id}`"
+                class="flex justify-around"
+              >
+                <ChevronRightIcon class="block w-6 h-6 fill-blumilk-500" />
               </InertiaLink>
             </td>
           </tr>
@@ -169,7 +172,19 @@
 </template>
 
 <script>
-import {ChevronRightIcon, DotsVerticalIcon, PencilIcon, TrashIcon} from '@heroicons/vue/solid'
+import {
+  ChevronRightIcon,
+  ClockIcon,
+  DotsVerticalIcon,
+  PencilIcon,
+  ThumbDownIcon,
+  ThumbUpIcon,
+  TrashIcon,
+  XIcon,
+  CheckIcon,
+  DocumentTextIcon,
+} from '@heroicons/vue/solid'
+import Status from '@/Shared/Status'
 
 export default {
   name: 'VacationRequestIndex',
@@ -178,6 +193,13 @@ export default {
     PencilIcon,
     TrashIcon,
     ChevronRightIcon,
+    ThumbUpIcon,
+    ClockIcon,
+    XIcon,
+    CheckIcon,
+    DocumentTextIcon,
+    ThumbDownIcon,
+    Status,
   },
   props: {
     requests: {
diff --git a/resources/js/Pages/VacationRequest/Show.vue b/resources/js/Pages/VacationRequest/Show.vue
index 55a3f09..1c4f519 100644
--- a/resources/js/Pages/VacationRequest/Show.vue
+++ b/resources/js/Pages/VacationRequest/Show.vue
@@ -2,7 +2,7 @@
   <InertiaHead :title="`Wniosek ${request.name}`" />
   <div class="grid grid-cols-1 gap-6 xl:grid-flow-col-dense xl:grid-cols-3">
     <div class="space-y-6 xl:col-start-1 xl:col-span-2">
-      <div class="bg-white sm:rounded-lg shadow-md">
+      <div class="bg-white shadow-md">
         <div class="px-4 py-5 sm:px-6">
           <h3 class="text-lg leading-6 font-medium text-gray-900">
             Informacje na temat wniosku
@@ -18,6 +18,14 @@
                 {{ request.name }}
               </dd>
             </div>
+            <div class="py-4 sm:py-5 sm:grid sm:grid-cols-3 sm:gap-4 sm:px-6">
+              <dt class="text-sm font-medium text-gray-500">
+                Pracownik
+              </dt>
+              <dd class="mt-1 text-sm text-gray-900 sm:mt-0 sm:col-span-2">
+                {{ request.user.name }}
+              </dd>
+            </div>
             <div class="py-4 sm:py-5 sm:grid sm:grid-cols-3 sm:gap-4 sm:px-6">
               <dt class="text-sm font-medium text-gray-500">
                 Rodzaj urlopu
@@ -26,6 +34,14 @@
                 {{ request.type }}
               </dd>
             </div>
+            <div class="py-4 sm:py-5 sm:grid sm:grid-cols-3 sm:gap-4 sm:px-6">
+              <dt class="text-sm font-medium text-gray-500">
+                Obecny status
+              </dt>
+              <dd class="mt-1 text-sm text-gray-900 sm:mt-0 sm:col-span-2">
+                <Status :status="request.state" />
+              </dd>
+            </div>
             <div class="py-4 sm:py-5 sm:grid sm:grid-cols-3 sm:gap-4 sm:px-6">
               <dt class="text-sm font-medium text-gray-500">
                 Urlop od
@@ -47,16 +63,25 @@
                 Dni urlopu
               </dt>
               <dd class="mt-1 text-sm text-gray-900 sm:mt-0 sm:col-span-2">
-                {{ request.estimatedDays }}
+                {{ request.days.length }}
               </dd>
             </div>
             <div class="py-4 sm:py-5 sm:grid sm:grid-cols-3 sm:gap-4 sm:px-6">
               <dt class="text-sm font-medium text-gray-500">
                 Komentarz
               </dt>
-              <dd class="mt-1 text-sm text-gray-900 sm:mt-0 sm:col-span-2">
+              <dd
+                v-if="request.comment != null"
+                class="mt-1 text-sm text-gray-900 sm:mt-0 sm:col-span-2"
+              >
                 {{ request.comment }}
               </dd>
+              <dd
+                v-else
+                class="mt-1 text-sm text-gray-900 sm:mt-0 sm:col-span-2"
+              >
+                -
+              </dd>
             </div>
             <div class="bg-white px-4 py-5 sm:grid sm:grid-cols-3 sm:gap-4 sm:px-6">
               <dt class="text-sm font-medium text-gray-500">
@@ -85,14 +110,15 @@
           </dl>
         </div>
       </div>
-      <div class="bg-white shadow sm:rounded-lg">
+      <div class="bg-white shadow">
         <div class="px-4 py-5 sm:p-6">
           <h3 class="text-lg leading-6 font-medium text-gray-900">
             Zaakceptuj wniosek jako osoba techniczna
           </h3>
           <div class="mt-2 max-w-xl text-sm text-gray-500">
             <p>
-              W zależności od typu wniosku, zostanie on zatwierdzony lub osoba administracyjna będzie musiała go zaakceptować.
+              W zależności od typu wniosku, zostanie on zatwierdzony lub osoba administracyjna będzie
+              musiała go zaakceptować.
             </p>
           </div>
           <div class="mt-5">
@@ -107,7 +133,7 @@
           </div>
         </div>
       </div>
-      <div class="bg-white shadow sm:rounded-lg">
+      <div class="bg-white shadow">
         <div class="px-4 py-5 sm:p-6">
           <h3 class="text-lg leading-6 font-medium text-gray-900">
             Zaakceptuj wniosek jako osoba administracyjna
@@ -129,7 +155,7 @@
           </div>
         </div>
       </div>
-      <div class="bg-white shadow sm:rounded-lg">
+      <div class="bg-white shadow">
         <div class="px-4 py-5 sm:p-6">
           <h3 class="text-lg leading-6 font-medium text-gray-900">
             Odrzuć wniosek
@@ -151,7 +177,7 @@
           </div>
         </div>
       </div>
-      <div class="bg-white shadow sm:rounded-lg border border-red-500">
+      <div class="bg-white shadow border border-red-500">
         <div class="px-4 py-5 sm:p-6">
           <h3 class="text-lg leading-6 font-medium text-gray-900">
             Anuluj wniosek
@@ -175,7 +201,7 @@
       </div>
     </div>
     <div class="xl:col-start-3 xl:col-span-1 space-y-6">
-      <div class="bg-white sm:rounded-lg shadow-md">
+      <div class="bg-white shadow-md">
         <div class="px-4 py-5 sm:px-6">
           <h3 class="text-lg leading-6 font-medium text-gray-900">
             Historia wniosku
@@ -185,31 +211,12 @@
           <ul>
             <li
               v-for="(activity, index) in activities.data"
-              :key="activity.id"
+              :key="index"
             >
-              <div :class="{'relative pb-8': index !== activities.data.length - 1}">
-                <span
-                  v-if="(index !== activities.data.length - 1)"
-                  class="absolute top-4 left-4 -ml-px h-full w-0.5 bg-gray-200"
-                />
-                <div class="relative flex space-x-3">
-                  <div>
-                    <span class="bg-blumilk-500 h-8 w-8 rounded-full flex items-center justify-center ring-8 ring-white">
-                      <ThumbUpIcon class="w-5 h-5 text-white" />
-                    </span>
-                  </div>
-                  <div class="min-w-0 flex-1 pt-1.5 flex justify-between space-x-4">
-                    <div>
-                      <p class="text-sm text-gray-500">
-                        {{ activity.to }}
-                      </p>
-                    </div>
-                    <div class="text-right text-sm whitespace-nowrap text-gray-500">
-                      <time>{{ activity.date }}</time>
-                    </div>
-                  </div>
-                </div>
-              </div>
+              <Activity
+                :activity="activity"
+                :last="index !== activities.data.length - 1"
+              />
             </li>
           </ul>
         </div>
@@ -219,14 +226,16 @@
 </template>
 
 <script>
-import { ThumbUpIcon } from '@heroicons/vue/outline'
-import {PaperClipIcon} from '@heroicons/vue/solid'
+import {PaperClipIcon} from '@heroicons/vue/outline'
+import Activity from '@/Shared/Activity'
+import Status from '@/Shared/Status'
 
 export default {
   name: 'VacationRequestShow',
   components: {
-    ThumbUpIcon,
+    Activity,
     PaperClipIcon,
+    Status,
   },
   props: {
     request: {
diff --git a/resources/js/Shared/Activity.vue b/resources/js/Shared/Activity.vue
new file mode 100644
index 0000000..050889c
--- /dev/null
+++ b/resources/js/Shared/Activity.vue
@@ -0,0 +1,58 @@
+<template>
+  <div :class="{'relative pb-8': last}">
+    <span
+      v-if="last"
+      class="absolute top-4 left-4 -ml-px h-full w-0.5 bg-gray-200"
+    />
+    <div class="relative flex space-x-3">
+      <div>
+        <span :class="[statusInfo.outline.background, statusInfo.outline.foreground, 'h-8 w-8 rounded-full flex items-center justify-center ring-8 ring-white']">
+          <component
+            :is="statusInfo.outline.icon"
+            class="w-5 h-5 text-white"
+          />
+        </span>
+      </div>
+      <div class="min-w-0 flex-1 pt-1.5 flex justify-between space-x-4">
+        <div class="flex flex-col items-start">
+          <div class="text-sm font-medium text-gray-700">
+            {{ statusInfo.text }}
+          </div>
+          <div class="text-right text-sm whitespace-nowrap font-medium text-gray-400">
+            {{ activity.user }}
+          </div>
+        </div>
+        <div class="text-right text-sm whitespace-nowrap text-gray-500 flex flex-col">
+          <time>{{ activity.date }}</time>
+          <time>{{ activity.time }}</time>
+        </div>
+      </div>
+    </div>
+  </div>
+</template>
+
+<script>
+import {computed} from 'vue'
+import {useStatusInfo} from '@/Composables/statusInfo'
+
+export default {
+  name: 'VacationRequestActivity',
+  props: {
+    activity: {
+      type: Object,
+      default: () => null,
+    },
+    last: {
+      type: Boolean,
+      default: () => false,
+    },
+  },
+  setup(props) {
+    const statusInfo = computed(() => useStatusInfo(props.activity.state))
+
+    return {
+      statusInfo,
+    }
+  },
+}
+</script>
diff --git a/resources/js/Shared/Layout/AppLayout.vue b/resources/js/Shared/Layout/AppLayout.vue
index 0150970..7ad4df4 100644
--- a/resources/js/Shared/Layout/AppLayout.vue
+++ b/resources/js/Shared/Layout/AppLayout.vue
@@ -1,8 +1,8 @@
 <template>
   <div class="min-h-full">
     <MainMenu />
-    <main class="-mt-24 pb-8">
-      <div class="max-w-3xl mx-auto px-4 sm:px-6 lg:max-w-7xl lg:px-8">
+    <main class="lg:ml-64 flex flex-col flex-1 py-8">
+      <div>
         <slot />
       </div>
     </main>
diff --git a/resources/js/Shared/MainMenu.vue b/resources/js/Shared/MainMenu.vue
index 7243cbe..d5df879 100644
--- a/resources/js/Shared/MainMenu.vue
+++ b/resources/js/Shared/MainMenu.vue
@@ -1,34 +1,198 @@
 <template>
-  <Popover
-    v-slot="{ open }"
-    as="header"
-    class="pb-24 bg-gradient-to-r from-blumilk-500 to-blumilk-600"
+  <TransitionRoot
+    as="template"
+    :show="sidebarOpen"
   >
-    <div class="max-w-3xl mx-auto px-4 sm:px-6 lg:max-w-7xl lg:px-8">
-      <div class="relative flex flex-wrap items-center justify-center lg:justify-between">
-        <!-- Logo -->
-        <div class="absolute left-0 py-5 flex-shrink-0 lg:static">
-          <InertiaLink href="/">
-            <img
-              class="h-8 w-auto"
-              src="/img/logo-white.png"
-              alt="Workflow"
-            >
+    <Dialog
+      as="div"
+      class="fixed inset-0 flex z-40 lg:hidden"
+      @close="sidebarOpen = false"
+    >
+      <TransitionChild
+        as="template"
+        enter="transition-opacity ease-linear duration-300"
+        enter-from="opacity-0"
+        enter-to="opacity-100"
+        leave="transition-opacity ease-linear duration-300"
+        leave-from="opacity-100"
+        leave-to="opacity-0"
+      >
+        <DialogOverlay class="fixed inset-0 bg-gray-600 bg-opacity-75" />
+      </TransitionChild>
+      <TransitionChild
+        as="template"
+        enter="transition ease-in-out duration-300 transform"
+        enter-from="-translate-x-full"
+        enter-to="translate-x-0"
+        leave="transition ease-in-out duration-300 transform"
+        leave-from="translate-x-0"
+        leave-to="-translate-x-full"
+      >
+        <div class="relative flex-1 flex flex-col max-w-xs w-full pt-5 pb-4 bg-blumilk-700">
+          <TransitionChild
+            as="template"
+            enter="ease-in-out duration-300"
+            enter-from="opacity-0"
+            enter-to="opacity-100"
+            leave="ease-in-out duration-300"
+            leave-from="opacity-100"
+            leave-to="opacity-0"
+          >
+            <div class="absolute top-0 right-0 -mr-12 pt-2">
+              <button
+                type="button"
+                class="ml-1 flex items-center justify-center h-10 w-10 rounded-full focus:outline-none focus:ring-2 focus:ring-inset focus:ring-white"
+                @click="sidebarOpen = false"
+              >
+                <span class="sr-only">Close sidebar</span>
+                <XIcon
+                  class="h-6 w-6 text-white"
+                  aria-hidden="true"
+                />
+              </button>
+            </div>
+          </TransitionChild>
+          <div class="flex-shrink-0 flex items-center px-4">
+            <InertiaLink href="/">
+              <img
+                class="h-8 w-auto"
+                src="/img/logo-white.png"
+                alt="Workflow"
+              >
+            </InertiaLink>
+          </div>
+          <nav
+            class="mt-5 flex-shrink-0 h-full divide-y divide-blumilk-800 overflow-y-auto"
+            aria-label="Sidebar"
+          >
+            <div class="px-2 space-y-1">
+              <InertiaLink
+                v-for="item in navigation"
+                :key="item.name"
+                :href="item.href"
+                :class="[item.current ? 'bg-blumilk-800 text-white' : 'text-blumilk-100 hover:text-white hover:bg-blumilk-600', 'group flex items-center px-2 py-2 text-base font-medium rounded-md']"
+                :aria-current="item.current ? 'page' : undefined"
+              >
+                <component
+                  :is="item.icon"
+                  class="mr-4 flex-shrink-0 h-6 w-6 text-blumilk-200"
+                  aria-hidden="true"
+                />
+                {{ item.name }}
+              </InertiaLink>
+            </div>
+            <div class="mt-6 pt-6">
+              <div class="px-2 space-y-1">
+                <InertiaLink
+                  v-for="item in secondaryNavigation"
+                  :key="item.name"
+                  :href="item.href"
+                  class="group flex items-center px-2 py-2 text-base font-medium rounded-md text-blumilk-100 hover:text-white hover:bg-blumilk-600"
+                >
+                  <component
+                    :is="item.icon"
+                    class="mr-4 h-6 w-6 text-blumilk-200"
+                    aria-hidden="true"
+                  />
+                  {{ item.name }}
+                </InertiaLink>
+              </div>
+            </div>
+          </nav>
+        </div>
+      </TransitionChild>
+      <div
+        class="flex-shrink-0 w-14"
+        aria-hidden="true"
+      />
+    </Dialog>
+  </TransitionRoot>
+
+  <!-- Static sidebar for desktop -->
+  <div class="hidden lg:flex lg:w-64 lg:flex-col lg:fixed lg:inset-y-0">
+    <div class="flex flex-col flex-grow bg-blumilk-700 pt-5 pb-4 overflow-y-auto">
+      <div class="flex items-center flex-shrink-0 px-4">
+        <InertiaLink href="/">
+          <img
+            class="h-8 w-auto"
+            src="/img/logo-white.png"
+            alt="Workflow"
+          >
+        </InertiaLink>
+      </div>
+      <nav
+        class="mt-5 flex-1 flex flex-col divide-y divide-blumilk-800 overflow-y-auto"
+        aria-label="Sidebar"
+      >
+        <div class="px-2 space-y-1">
+          <InertiaLink
+            v-for="item in navigation"
+            :key="item.name"
+            :href="item.href"
+            :class="[item.current ? 'bg-blumilk-800 text-white' : 'text-blumilk-100 hover:text-white hover:bg-blumilk-600', 'group flex items-center px-2 py-2 text-sm leading-6 font-medium rounded-md']"
+            :aria-current="item.current ? 'page' : undefined"
+          >
+            <component
+              :is="item.icon"
+              class="mr-4 flex-shrink-0 h-6 w-6 text-blumilk-200"
+              aria-hidden="true"
+            />
+            {{ item.name }}
           </InertiaLink>
         </div>
+        <div class="mt-6 pt-6">
+          <div class="px-2 space-y-1">
+            <InertiaLink
+              v-for="item in secondaryNavigation"
+              :key="item.name"
+              :href="item.href"
+              class="group flex items-center px-2 py-2 text-sm leading-6 font-medium rounded-md text-blumilk-100 hover:text-white hover:bg-blumilk-600"
+            >
+              <component
+                :is="item.icon"
+                class="mr-4 h-6 w-6 text-blumilk-200"
+                aria-hidden="true"
+              />
+              {{ item.name }}
+            </InertiaLink>
+          </div>
+        </div>
+      </nav>
+    </div>
+  </div>
 
-        <!-- Right section on desktop -->
-        <div class="hidden lg:ml-4 lg:flex lg:items-center lg:py-5 lg:pr-0.5">
-          <div class="mr-4">
+  <div class="lg:pl-64 flex flex-col flex-1">
+    <div class="relative z-10 flex-shrink-0 flex h-16 bg-white border-b border-gray-200">
+      <button
+        type="button"
+        class="px-4 border-r border-gray-200 text-gray-400 focus:outline-none focus:ring-2 focus:ring-inset focus:ring-blumilk-500 lg:hidden"
+        @click="sidebarOpen = true"
+      >
+        <span class="sr-only">Open sidebar</span>
+        <MenuAlt1Icon
+          class="h-6 w-6"
+          aria-hidden="true"
+        />
+      </button>
+      <div class="flex-1 px-4 flex justify-between sm:px-6 lg:px-8">
+        <div class="flex items-center">
+          <div>
             <Menu
               as="div"
               class="relative inline-block text-left"
             >
-              <div>
-                <MenuButton class="inline-flex justify-center w-full rounded-md border border-gray-300 shadow-sm px-4 py-2 bg-white text-sm font-medium text-gray-700 hover:bg-gray-50 focus:outline-none focus:ring-1 focus:ring-gray-300">
-                  {{ years.current }}
-                  <ChevronDownIcon class="-mr-1 ml-2 h-5 w-5" />
-                </MenuButton>
+              <div class="flex justify-center items-center">
+                <div class="mr-4">
+                  Wybrany rok:
+                </div>
+                <div>
+                  <MenuButton
+                    class="inline-flex justify-center w-full rounded-md border border-gray-300 shadow-sm px-4 py-2 bg-white text-sm font-medium text-gray-700 hover:bg-gray-50 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-blumilk-500"
+                  >
+                    {{ years.current }}
+                    <ChevronDownIcon class="-mr-1 ml-2 h-5 w-5" />
+                  </MenuButton>
+                </div>
               </div>
 
               <transition
@@ -39,7 +203,9 @@
                 leave-from-class="transform opacity-100 scale-100"
                 leave-to-class="transform opacity-0 scale-95"
               >
-                <MenuItems class="origin-top-right absolute right-0 mt-2 w-32 rounded-md shadow-lg bg-white ring-1 ring-black ring-opacity-5 focus:outline-none">
+                <MenuItems
+                  class="origin-top-right absolute right-0 mt-2 w-32 rounded-md shadow-lg bg-white ring-1 ring-black ring-opacity-5 focus:outline-none"
+                >
                   <div class="py-1">
                     <MenuItem
                       v-for="(item, index) in years.navigation"
@@ -65,44 +231,42 @@
               </transition>
             </Menu>
           </div>
-
-          <button
-            type="button"
-            class="flex-shrink-0 p-1 text-cyan-200 rounded-full hover:text-white hover:bg-white hover:bg-opacity-10 focus:outline-none focus:ring-2 focus:ring-white"
-          >
-            <span class="sr-only">View notifications</span>
-            <BellIcon
-              class="h-6 w-6"
-              aria-hidden="true"
-            />
-          </button>
-
+        </div>
+        <div class="ml-4 flex items-center md:ml-6">
           <!-- Profile dropdown -->
           <Menu
             as="div"
-            class="ml-4 relative flex-shrink-0"
+            class="ml-3 relative"
           >
             <div>
               <MenuButton
-                class="rounded-full flex text-sm ring-2 ring-white ring-opacity-20 focus:outline-none focus:ring-opacity-100"
-                dusk="user-menu"
+                class="max-w-xs bg-white rounded-full flex items-center text-sm focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-blumilk-500 lg:p-2 lg:rounded-md lg:hover:bg-gray-50"
               >
-                <span class="sr-only">{{ user.avatar }}</span>
                 <img
                   class="h-8 w-8 rounded-full"
                   :src="user.avatar"
-                  alt=""
+                  alt="Avatar"
                 >
+                <span class="hidden ml-3 text-gray-700 text-sm font-medium lg:block">
+                  <span class="sr-only">Open user menu for </span>
+                  {{ user.name }}
+                </span>
+                <ChevronDownIcon
+                  class="hidden flex-shrink-0 ml-1 h-5 w-5 text-gray-400 lg:block"
+                  aria-hidden="true"
+                />
               </MenuButton>
             </div>
             <transition
+              enter-active-class="transition ease-out duration-100"
+              enter-from-class="transform opacity-0 scale-95"
+              enter-to-class="transform opacity-100 scale-100"
               leave-active-class="transition ease-in duration-75"
               leave-from-class="transform opacity-100 scale-100"
               leave-to-class="transform opacity-0 scale-95"
             >
               <MenuItems
-                class="origin-top-right z-40 absolute -right-2 mt-2 w-48 rounded-md shadow-lg py-1 bg-white ring-1 ring-black ring-opacity-5 focus:outline-none"
-                dusk="user-menu-list"
+                class="origin-top-right absolute right-0 mt-2 w-48 rounded-md shadow-lg py-1 bg-white ring-1 ring-black ring-opacity-5 focus:outline-none"
               >
                 <MenuItem
                   v-for="item in userNavigation"
@@ -122,208 +286,88 @@
             </transition>
           </Menu>
         </div>
-
-        <div class="w-full py-5 lg:border-t lg:border-white lg:border-opacity-20">
-          <div class="lg:items-center">
-            <div class="hidden lg:block">
-              <nav class="flex space-x-4">
-                <InertiaLink
-                  v-for="item in navigation"
-                  :key="item.name"
-                  :href="item.href"
-                  :class="[item.current ? 'text-white' : 'text-cyan-100', 'text-sm font-medium rounded-md bg-white bg-opacity-0 px-3 py-2 hover:bg-opacity-10']"
-                  :aria-current="item.current ? 'page' : undefined"
-                >
-                  {{ item.name }}
-                </InertiaLink>
-              </nav>
-            </div>
-          </div>
-        </div>
-
-        <!-- Menu button -->
-        <div class="absolute right-0 flex-shrink-0 lg:hidden">
-          <!-- Mobile menu button -->
-          <PopoverButton
-            class="bg-transparent p-2 rounded-md inline-flex items-center justify-center text-cyan-200 hover:text-white hover:bg-white hover:bg-opacity-10 focus:outline-none focus:ring-2 focus:ring-white"
-          >
-            <span class="sr-only">Open main menu</span>
-            <MenuIcon
-              v-if="!open"
-              class="block h-6 w-6"
-              aria-hidden="true"
-            />
-            <XIcon
-              v-else
-              class="block h-6 w-6"
-              aria-hidden="true"
-            />
-          </PopoverButton>
-        </div>
       </div>
     </div>
-
-    <TransitionRoot
-      as="template"
-      :show="open"
-    >
-      <div class="lg:hidden">
-        <TransitionChild
-          as="template"
-          enter="duration-150 ease-out"
-          enter-from="opacity-0"
-          enter-to="opacity-100"
-          leave="duration-150 ease-in"
-          leave-from="opacity-100"
-          leave-to="opacity-0"
-        >
-          <PopoverOverlay class="z-20 fixed inset-0 bg-black bg-opacity-25" />
-        </TransitionChild>
-
-        <TransitionChild
-          as="template"
-          enter="duration-150 ease-out"
-          enter-from="opacity-0 scale-95"
-          enter-to="opacity-100 scale-100"
-          leave="duration-150 ease-in"
-          leave-from="opacity-100 scale-100"
-          leave-to="opacity-0 scale-95"
-        >
-          <PopoverPanel
-            focus
-            class="z-30 absolute top-0 inset-x-0 max-w-3xl mx-auto w-full p-2 transition transform origin-top"
-          >
-            <div
-              class="rounded-lg shadow-lg ring-1 ring-black ring-opacity-5 bg-white divide-y divide-gray-200"
-            >
-              <div class="pt-3 pb-2">
-                <div class="flex items-center justify-between px-4">
-                  <div>
-                    <img
-                      class="h-8 w-auto"
-                      src="/img/logo-white.png"
-                      alt="Workflow"
-                    >
-                  </div>
-                  <div class="-mr-2">
-                    <PopoverButton
-                      class="bg-white rounded-md p-2 inline-flex items-center justify-center text-gray-400 hover:text-gray-500 hover:bg-gray-100 focus:outline-none focus:ring-2 focus:ring-inset focus:ring-cyan-500"
-                    >
-                      <span class="sr-only">Close menu</span>
-                      <XIcon
-                        class="h-6 w-6"
-                        aria-hidden="true"
-                      />
-                    </PopoverButton>
-                  </div>
-                </div>
-                <div class="mt-3 px-2 space-y-1">
-                  <InertiaLink
-                    v-for="item in navigation"
-                    :key="item.name"
-                    :href="item.href"
-                    class="block rounded-md px-3 py-2 text-base text-gray-900 font-medium hover:bg-gray-100 hover:text-gray-800"
-                  >
-                    {{ item.name }}
-                  </InertiaLink>
-                </div>
-              </div>
-              <div class="pt-4 pb-2">
-                <div class="flex items-center px-5">
-                  <div class="flex-shrink-0">
-                    <img
-                      class="h-10 w-10 rounded-full"
-                      :src="user.avatar"
-                      alt=""
-                    >
-                  </div>
-                  <div class="ml-3 min-w-0 flex-1">
-                    <div class="text-base font-medium text-gray-800 truncate">
-                      {{ user.name }}
-                    </div>
-                    <div class="text-sm font-medium text-gray-500 truncate">
-                      {{ user.email }}
-                    </div>
-                  </div>
-                  <button
-                    type="button"
-                    class="ml-auto flex-shrink-0 bg-white p-1 text-gray-400 rounded-full hover:text-gray-500 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-cyan-500"
-                  >
-                    <span class="sr-only">View notifications</span>
-                    <BellIcon
-                      class="h-6 w-6"
-                      aria-hidden="true"
-                    />
-                  </button>
-                </div>
-                <div class="mt-3 px-2 space-y-1">
-                  <InertiaLink
-                    v-for="item in userNavigation"
-                    :key="item.name"
-                    :method="item.method"
-                    :as="item.as"
-                    :href="item.href"
-                    class="block w-full text-left rounded-md px-3 py-2 text-base text-gray-900 font-medium hover:bg-gray-100 hover:text-gray-800"
-                  >
-                    {{ item.name }}
-                  </InertiaLink>
-                </div>
-              </div>
-            </div>
-          </PopoverPanel>
-        </TransitionChild>
-      </div>
-    </TransitionRoot>
-  </Popover>
+  </div>
 </template>
 
 <script>
+import {ref} from 'vue'
 import {
+  Dialog,
+  DialogOverlay,
   Menu,
   MenuButton,
   MenuItem,
   MenuItems,
-  Popover,
-  PopoverButton,
-  PopoverOverlay,
-  PopoverPanel,
   TransitionChild,
   TransitionRoot,
 } from '@headlessui/vue'
-import {BellIcon, MenuIcon, XIcon} from '@heroicons/vue/outline'
+import {
+  BellIcon,
+  CogIcon,
+  HomeIcon,
+  CollectionIcon,
+  MenuAlt1Icon,
+  QuestionMarkCircleIcon,
+  ShieldCheckIcon,
+  UserGroupIcon,
+  XIcon,
+  SunIcon,
+  StarIcon,
+  CalendarIcon,
+} from '@heroicons/vue/outline'
+import {
+  CashIcon,
+  CheckCircleIcon,
+  CheckIcon,
+  ChevronDownIcon,
+  ChevronRightIcon,
+  OfficeBuildingIcon,
+  SearchIcon,
+} from '@heroicons/vue/solid'
 import {computed} from 'vue'
 import {usePage} from '@inertiajs/inertia-vue3'
-import {ChevronDownIcon, CheckIcon} from '@heroicons/vue/solid'
 
 export default {
-  name: 'MainMenu',
   components: {
+    Dialog,
+    DialogOverlay,
     Menu,
     MenuButton,
     MenuItem,
     MenuItems,
-    Popover,
-    PopoverButton,
-    PopoverOverlay,
-    PopoverPanel,
     TransitionChild,
     TransitionRoot,
     BellIcon,
-    MenuIcon,
-    XIcon,
+    CashIcon,
+    CheckCircleIcon,
     ChevronDownIcon,
+    ChevronRightIcon,
+    MenuAlt1Icon,
+    OfficeBuildingIcon,
+    SearchIcon,
+    XIcon,
+    StarIcon,
+    HomeIcon,
     CheckIcon,
+    UserGroupIcon,
+    SunIcon,
+    CalendarIcon,
   },
   setup() {
+    const sidebarOpen = ref(false)
+
     const user = computed(() => usePage().props.value.auth.user)
     const years = computed(() => usePage().props.value.years)
 
     const navigation = [
-      {name: 'Strona główna', href: '/', current: true},
-      {name: 'Użytkownicy', href: '/users', current: false},
-      {name: 'Dostępne urlopy', href: '/vacation-limits', current: false},
-      {name: 'Dni wolne', href: '/holidays', current: false},
-      {name: 'Wnioski urlopowe', href: '/vacation-requests', current: false},
+      {name: 'Strona główna', href: '/', icon: HomeIcon, current: true},
+      {name: 'Użytkownicy', href: '/users', icon: UserGroupIcon, current: false},
+      {name: 'Dostępne urlopy', href: '/vacation-limits', icon: SunIcon, current: false},
+      {name: 'Twoje wnioski', href: '/vacation-requests', icon: CollectionIcon, current: false},
+      {name: 'Dni wolne', href: '/holidays', icon: StarIcon, current: false},
+      {name: 'Kalendarz urlopów', href: '/vacation-calendar', icon: CalendarIcon, current: false},
     ]
     const userNavigation = [
       {name: 'Your Profile', href: '#'},
@@ -331,12 +375,19 @@ export default {
       {name: 'Wyloguj się', href: '/logout', method: 'post', as: 'button'},
     ]
 
+    const secondaryNavigation = [
+      {name: 'Settings', href: '#', icon: CogIcon},
+      {name: 'Help', href: '#', icon: QuestionMarkCircleIcon},
+      {name: 'Privacy', href: '#', icon: ShieldCheckIcon},
+    ]
     return {
       user,
       years,
       navigation,
+      secondaryNavigation,
       userNavigation,
+      sidebarOpen,
     }
   },
 }
-</script>
+</script>
\ No newline at end of file
diff --git a/resources/js/Shared/Status.vue b/resources/js/Shared/Status.vue
new file mode 100644
index 0000000..6588c7f
--- /dev/null
+++ b/resources/js/Shared/Status.vue
@@ -0,0 +1,35 @@
+<template>
+  <div class="flex items-center">
+    <component
+      :is="statusInfo.solid.icon"
+      :class="[statusInfo.solid.color ,'w-5 h-5 mr-1']"
+    />
+    <span>{{ statusInfo.text }}</span>
+  </div>
+</template>
+
+<script>
+import {computed} from 'vue'
+import {useStatusInfo} from '@/Composables/statusInfo'
+
+export default {
+  name: 'VacationRequestStatus',
+  props: {
+    status: {
+      type: String,
+      default: () => null,
+    },
+    last: {
+      type: Boolean,
+      default: () => false,
+    },
+  },
+  setup(props) {
+    const statusInfo = computed(() => useStatusInfo(props.status))
+
+    return {
+      statusInfo,
+    }
+  },
+}
+</script>
diff --git a/resources/lang/pl.json b/resources/lang/pl.json
index 01cf187..7979b2a 100644
--- a/resources/lang/pl.json
+++ b/resources/lang/pl.json
@@ -28,7 +28,7 @@
   "accepted_by_administrative": "Zaakceptowany przez administracyjnego",
   "You have pending vacation request in this range.": "Masz oczekujący wniosek urlopowy w tym zakresie dat.",
   "You have approved vacation request in this range.": "Masz zaakceptowany wniosek urlopowy w tym zakresie dat.",
-  "You have exceeded your vacation limit.": "Przekroczyłeś/aś limit urlopu.",
+  "Vacation limit has been exceeded.": "Limit urlopu został przekroczony.",
   "Vacation needs minimum one day.": "Urlop musi być co najmniej na jeden dzień.",
   "The vacation request cannot be created at the turn of the year.": "Wniosek urlopowy nie może zostać złożony na przełomie roku."
 }
diff --git a/routes/web.php b/routes/web.php
index 59d8561..59f3682 100644
--- a/routes/web.php
+++ b/routes/web.php
@@ -8,6 +8,7 @@ use Toby\Infrastructure\Http\Controllers\HolidayController;
 use Toby\Infrastructure\Http\Controllers\LogoutController;
 use Toby\Infrastructure\Http\Controllers\SelectYearPeriodController;
 use Toby\Infrastructure\Http\Controllers\UserController;
+use Toby\Infrastructure\Http\Controllers\VacationCalendarController;
 use Toby\Infrastructure\Http\Controllers\VacationLimitController;
 use Toby\Infrastructure\Http\Controllers\VacationRequestController;
 
@@ -23,6 +24,10 @@ Route::middleware("auth")->group(function (): void {
 
     Route::get("/vacation-limits", [VacationLimitController::class, "edit"])
         ->name("vacation.limits");
+    Route::get("/vacation-calendar", [VacationCalendarController::class, "index"])
+        ->name("vacation.calendar");
+
+    Route::get("/vacation-limits", [VacationLimitController::class, "edit"])->name("vacation.limits");
     Route::put("/vacation-limits", [VacationLimitController::class, "update"]);
 
     Route::get("/vacation-requests", [VacationRequestController::class, "index"])
diff --git a/tailwind.config.js b/tailwind.config.js
index d48c4d3..9493ebe 100644
--- a/tailwind.config.js
+++ b/tailwind.config.js
@@ -1,34 +1,35 @@
-const defaultTheme = require('tailwindcss/defaultTheme');
+const defaultTheme = require('tailwindcss/defaultTheme')
 
 module.exports = {
-    content: [
-        './resources/**/*.vue',
-    ],
-    theme: {
-        extend: {
-            fontFamily: {
-                sans: ['Inter var', ...defaultTheme.fontFamily.sans],
-            },
-            colors: {
-                'blumilk': {
-                    '25': '#F4F8FD',
-                    '50': '#D5DFEE',
-                    '100': '#C7D4E9',
-                    '200': '#AABDDD',
-                    '300': '#8CA7D1',
-                    '400': '#6F90C6',
-                    '500': '#527ABA',
-                    '600': '#3C5F97',
-                    '700': '#2C466F',
-                    '800': '#1C2D47',
-                    '900': '#0C141F'
-                },
-            }
+  content: [
+    './resources/**/*.vue',
+    './resources/**/*.js',
+  ],
+  theme: {
+    extend: {
+      fontFamily: {
+        sans: ['Inter var', ...defaultTheme.fontFamily.sans],
+      },
+      colors: {
+        'blumilk': {
+          '25': '#F4F8FD',
+          '50': '#D5DFEE',
+          '100': '#C7D4E9',
+          '200': '#AABDDD',
+          '300': '#8CA7D1',
+          '400': '#6F90C6',
+          '500': '#527ABA',
+          '600': '#3C5F97',
+          '700': '#2C466F',
+          '800': '#1C2D47',
+          '900': '#0C141F',
         },
+      },
     },
-    plugins: [
-        require('@tailwindcss/forms'),
-        require('@tailwindcss/typography'),
-        require('@tailwindcss/line-clamp')
-    ],
-};
+  },
+  plugins: [
+    require('@tailwindcss/forms'),
+    require('@tailwindcss/typography'),
+    require('@tailwindcss/line-clamp'),
+  ],
+}
diff --git a/tests/Feature/UserTest.php b/tests/Feature/UserTest.php
index ecec1d6..3ec5af4 100644
--- a/tests/Feature/UserTest.php
+++ b/tests/Feature/UserTest.php
@@ -88,10 +88,10 @@ class UserTest extends FeatureTestCase
             ->post("/users", [
                 "firstName" => "John",
                 "lastName" => "Doe",
-                "role" => Role::EMPLOYEE->value,
+                "role" => Role::Employee->value,
                 "position" => "Test position",
                 "email" => "john.doe@example.com",
-                "employmentForm" => EmploymentForm::B2B_CONTRACT->value,
+                "employmentForm" => EmploymentForm::B2bContract->value,
                 "employmentDate" => Carbon::now()->toDateString(),
             ])
             ->assertSessionHasNoErrors();
@@ -100,9 +100,9 @@ class UserTest extends FeatureTestCase
             "first_name" => "John",
             "last_name" => "Doe",
             "email" => "john.doe@example.com",
-            "role" => Role::EMPLOYEE->value,
+            "role" => Role::Employee->value,
             "position" => "Test position",
-            "employment_form" => EmploymentForm::B2B_CONTRACT->value,
+            "employment_form" => EmploymentForm::B2bContract->value,
             "employment_date" => Carbon::now()->toDateString(),
         ]);
     }
@@ -127,9 +127,9 @@ class UserTest extends FeatureTestCase
                 "firstName" => "John",
                 "lastName" => "Doe",
                 "email" => "john.doe@example.com",
-                "role" => Role::EMPLOYEE->value,
+                "role" => Role::Employee->value,
                 "position" => "Test position",
-                "employmentForm" => EmploymentForm::B2B_CONTRACT->value,
+                "employmentForm" => EmploymentForm::B2bContract->value,
                 "employmentDate" => Carbon::now()->toDateString(),
             ])
             ->assertSessionHasNoErrors();
@@ -138,9 +138,9 @@ class UserTest extends FeatureTestCase
             "first_name" => "John",
             "last_name" => "Doe",
             "email" => "john.doe@example.com",
-            "role" => Role::EMPLOYEE->value,
+            "role" => Role::Employee->value,
             "position" => "Test position",
-            "employment_form" => EmploymentForm::B2B_CONTRACT->value,
+            "employment_form" => EmploymentForm::B2bContract->value,
             "employment_date" => Carbon::now()->toDateString(),
         ]);
     }
diff --git a/tests/Feature/VacationRequestTest.php b/tests/Feature/VacationRequestTest.php
new file mode 100644
index 0000000..98e95e0
--- /dev/null
+++ b/tests/Feature/VacationRequestTest.php
@@ -0,0 +1,345 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Tests\Feature;
+
+use Illuminate\Foundation\Testing\DatabaseMigrations;
+use Illuminate\Support\Carbon;
+use Inertia\Testing\AssertableInertia as Assert;
+use Tests\FeatureTestCase;
+use Toby\Domain\Enums\VacationRequestState;
+use Toby\Domain\Enums\VacationType;
+use Toby\Domain\PolishHolidaysRetriever;
+use Toby\Eloquent\Models\User;
+use Toby\Eloquent\Models\VacationLimit;
+use Toby\Eloquent\Models\VacationRequest;
+use Toby\Eloquent\Models\YearPeriod;
+
+class VacationRequestTest extends FeatureTestCase
+{
+    use DatabaseMigrations;
+
+    protected PolishHolidaysRetriever $polishHolidaysRetriever;
+
+    protected function setUp(): void
+    {
+        parent::setUp();
+
+        $this->polishHolidaysRetriever = $this->app->make(PolishHolidaysRetriever::class);
+    }
+
+    public function testUserCanSeeVacationRequestsList(): void
+    {
+        $user = User::factory()->createQuietly();
+        $currentYearPeriod = YearPeriod::current();
+
+        VacationRequest::factory()
+            ->count(10)
+            ->for($user)
+            ->for($currentYearPeriod)
+            ->create();
+
+        $this->actingAs($user)
+            ->get("/vacation-requests")
+            ->assertOk()
+            ->assertInertia(
+                fn(Assert $page) => $page
+                    ->component("VacationRequest/Index")
+                    ->has("requests.data", 10),
+            );
+    }
+
+    public function testUserCanCreateVacationRequest(): void
+    {
+        $user = User::factory()->createQuietly();
+
+        $currentYearPeriod = YearPeriod::current();
+
+        VacationLimit::factory([
+            "days" => 20,
+        ])
+            ->for($user)
+            ->for($currentYearPeriod)
+            ->create();
+
+        $this->actingAs($user)
+            ->post("/vacation-requests", [
+                "type" => VacationType::Vacation->value,
+                "from" => Carbon::create($currentYearPeriod->year, 2, 7)->toDateString(),
+                "to" => Carbon::create($currentYearPeriod->year, 2, 11)->toDateString(),
+                "comment" => "Comment for the vacation request.",
+            ])
+            ->assertSessionHasNoErrors();
+
+        $this->assertDatabaseHas("vacation_requests", [
+            "user_id" => $user->id,
+            "year_period_id" => $currentYearPeriod->id,
+            "name" => "1/" . $currentYearPeriod->year,
+            "type" => VacationType::Vacation->value,
+            "state" => VacationRequestState::WaitingForTechnical,
+            "from" => Carbon::create($currentYearPeriod->year, 2, 7)->toDateString(),
+            "to" => Carbon::create($currentYearPeriod->year, 2, 11)->toDateString(),
+            "comment" => "Comment for the vacation request.",
+        ]);
+    }
+
+    public function testTechnicalApproverCanApproveVacationRequest(): void
+    {
+        $user = User::factory()->createQuietly();
+        $technicalApprover = User::factory()->createQuietly();
+        $currentYearPeriod = YearPeriod::current();
+
+        $vacationRequest = VacationRequest::factory([
+            "state" => VacationRequestState::WaitingForTechnical,
+            "type" => VacationType::Vacation,
+        ])
+            ->for($user)
+            ->for($currentYearPeriod)
+            ->create();
+
+        $this->actingAs($technicalApprover)
+            ->post("/vacation-requests/{$vacationRequest->id}/accept-as-technical")
+            ->assertSessionHasNoErrors();
+
+        $this->assertDatabaseHas("vacation_requests", [
+            "state" => VacationRequestState::WaitingForAdministrative,
+        ]);
+    }
+
+    public function testAdministrativeApproverCanApproveVacationRequest(): void
+    {
+        $user = User::factory()->createQuietly();
+        $administrativeApprover = User::factory()->createQuietly();
+
+        $currentYearPeriod = YearPeriod::current();
+
+        $vacationRequest = VacationRequest::factory([
+            "state" => VacationRequestState::WaitingForAdministrative,
+        ])
+            ->for($user)
+            ->for($currentYearPeriod)
+            ->create();
+
+        $this->actingAs($administrativeApprover)
+            ->post("/vacation-requests/{$vacationRequest->id}/accept-as-administrative")
+            ->assertSessionHasNoErrors();
+
+        $this->assertDatabaseHas("vacation_requests", [
+            "state" => VacationRequestState::Approved,
+        ]);
+    }
+
+    public function testTechnicalApproverCanRejectVacationRequest(): void
+    {
+        $user = User::factory()->createQuietly();
+        $technicalApprover = User::factory()->createQuietly();
+        $currentYearPeriod = YearPeriod::current();
+
+        $vacationLimit = VacationLimit::factory([
+            "days" => 20,
+        ])
+            ->for($user)
+            ->for($currentYearPeriod)
+            ->create();
+
+        $vacationRequest = VacationRequest::factory([
+            "state" => VacationRequestState::WaitingForTechnical,
+            "type" => VacationType::Vacation,
+        ])
+            ->for($user)
+            ->for($currentYearPeriod)
+            ->create();
+
+        $this->actingAs($technicalApprover)
+            ->post("/vacation-requests/{$vacationRequest->id}/reject")
+            ->assertSessionHasNoErrors();
+
+        $this->assertDatabaseHas("vacation_requests", [
+            "state" => VacationRequestState::Rejected,
+        ]);
+    }
+
+    public function testUserCannotCreateVacationRequestIfHeExceedsHisVacationLimit(): void
+    {
+        $user = User::factory()->createQuietly();
+        $currentYearPeriod = YearPeriod::current();
+
+        VacationLimit::factory([
+            "days" => 3,
+        ])
+            ->for($user)
+            ->for($currentYearPeriod)
+            ->create();
+
+        $this->actingAs($user)
+            ->post("/vacation-requests", [
+                "type" => VacationType::Vacation->value,
+                "from" => Carbon::create($currentYearPeriod->year, 2, 7)->toDateString(),
+                "to" => Carbon::create($currentYearPeriod->year, 2, 11)->toDateString(),
+                "comment" => "Comment for the vacation request.",
+            ])
+            ->assertSessionHasErrors([
+                "vacationRequest" => __("Vacation limit has been exceeded."),
+            ]);
+    }
+
+    public function testUserCannotCreateVacationRequestAtWeekend(): void
+    {
+        $user = User::factory()->createQuietly();
+        $currentYearPeriod = YearPeriod::current();
+
+        VacationLimit::factory([
+            "days" => 20,
+        ])
+            ->for($user)
+            ->for($currentYearPeriod)
+            ->create();
+
+        $this->actingAs($user)
+            ->post("/vacation-requests", [
+                "type" => VacationType::Vacation->value,
+                "from" => Carbon::create($currentYearPeriod->year, 2, 5)->toDateString(),
+                "to" => Carbon::create($currentYearPeriod->year, 2, 6)->toDateString(),
+                "comment" => "Vacation at weekend.",
+            ])
+            ->assertSessionHasErrors([
+                "vacationRequest" => __("Vacation needs minimum one day."),
+            ]);
+    }
+
+    public function testUserCannotCreateVacationRequestAtHoliday(): void
+    {
+        $user = User::factory()->createQuietly();
+        $currentYearPeriod = YearPeriod::current();
+
+        VacationLimit::factory([
+            "days" => 20,
+        ])
+            ->for($user)
+            ->for($currentYearPeriod)
+            ->create();
+
+        foreach ($this->polishHolidaysRetriever->getForYearPeriod($currentYearPeriod) as $holiday) {
+            $currentYearPeriod->holidays()->create([
+                "name" => $holiday["name"],
+                "date" => $holiday["date"],
+            ]);
+        }
+
+        $this->actingAs($user)
+            ->post("/vacation-requests", [
+                "type" => VacationType::Vacation->value,
+                "from" => Carbon::create($currentYearPeriod->year, 4, 18)->toDateString(),
+                "to" => Carbon::create($currentYearPeriod->year, 4, 18)->toDateString(),
+                "comment" => "Vacation at holiday.",
+            ])
+            ->assertSessionHasErrors([
+                "vacationRequest" => __("Vacation needs minimum one day."),
+            ]);
+    }
+
+    public function testUserCannotCreateVacationRequestIfHeHasPendingVacationRequestInThisRange(): void
+    {
+        $user = User::factory()->createQuietly();
+        $currentYearPeriod = YearPeriod::current();
+
+        VacationLimit::factory([
+            "days" => 20,
+        ])
+            ->for($user)
+            ->for($currentYearPeriod)
+            ->create();
+
+        VacationRequest::factory([
+            "type" => VacationType::Vacation->value,
+            "state" => VacationRequestState::WaitingForTechnical,
+            "from" => Carbon::create($currentYearPeriod->year, 2, 1)->toDateString(),
+            "to" => Carbon::create($currentYearPeriod->year, 2, 4)->toDateString(),
+            "comment" => "Comment for the vacation request.",
+        ])
+            ->for($user)
+            ->for($currentYearPeriod)
+            ->create();
+
+        $this->actingAs($user)
+            ->post("/vacation-requests", [
+                "type" => VacationType::Vacation->value,
+                "from" => Carbon::create($currentYearPeriod->year, 2, 1)->toDateString(),
+                "to" => Carbon::create($currentYearPeriod->year, 2, 4)->toDateString(),
+                "comment" => "Another comment for the another vacation request.",
+            ])
+            ->assertSessionHasErrors([
+                "vacationRequest" => __("You have pending vacation request in this range."),
+            ])
+        ;
+    }
+
+    public function testUserCannotCreateVacationRequestIfHeHasApprovedVacationRequestInThisRange(): void
+    {
+        $user = User::factory()->createQuietly();
+        $currentYearPeriod = YearPeriod::current();
+
+        $vacationLimit = VacationLimit::factory([
+            "days" => 20,
+        ])
+            ->for($user)
+            ->for($currentYearPeriod)
+            ->create();
+
+        VacationRequest::factory([
+            "type" => VacationType::Vacation->value,
+            "state" => VacationRequestState::Approved,
+            "from" => Carbon::create($currentYearPeriod->year, 2, 2)->toDateString(),
+            "to" => Carbon::create($currentYearPeriod->year, 2, 4)->toDateString(),
+            "comment" => "Comment for the vacation request.",
+        ])
+            ->for($user)
+            ->for($currentYearPeriod)
+            ->create();
+
+        $this->actingAs($user)
+            ->post("/vacation-requests", [
+                "type" => VacationType::Vacation->value,
+                "from" => Carbon::create($currentYearPeriod->year, 2, 1)->toDateString(),
+                "to" => Carbon::create($currentYearPeriod->year, 2, 4)->toDateString(),
+                "comment" => "Another comment for the another vacation request.",
+            ])
+            ->assertSessionHasErrors([
+                "vacationRequest" => __("You have approved vacation request in this range."),
+            ]);
+    }
+
+    public function testUserCannotCreateVacationRequestWithEndDatePriorToTheStartDate(): void
+    {
+        $user = User::factory()->createQuietly();
+        $currentYearPeriod = YearPeriod::current();
+        $this->actingAs($user)
+            ->post("/vacation-requests", [
+                "type" => VacationType::Vacation->value,
+                "from" => Carbon::create($currentYearPeriod->year, 2, 7)->toDateString(),
+                "to" => Carbon::create($currentYearPeriod->year, 2, 6)->toDateString(),
+                "comment" => "Comment for the vacation request.",
+            ])
+            ->assertSessionHasErrors([
+                "vacationRequest" => __("Vacation needs minimum one day."),
+            ]);
+    }
+
+    public function testUserCannotCreateVacationRequestAtTheTurnOfTheYear(): void
+    {
+        $user = User::factory()->createQuietly();
+        $currentYearPeriod = YearPeriod::current();
+        $nextYearPeriod = $this->createYearPeriod(Carbon::now()->year + 1);
+        $this->actingAs($user)
+            ->post("/vacation-requests", [
+                "type" => VacationType::Vacation->value,
+                "from" => Carbon::create($currentYearPeriod->year, 12, 27)->toDateString(),
+                "to" => Carbon::create($nextYearPeriod->year, 1, 2)->toDateString(),
+                "comment" => "Comment for the vacation request.",
+            ])
+            ->assertSessionHasErrors([
+                "vacationRequest" => __("The vacation request cannot be created at the turn of the year."),
+            ]);
+    }
+}
diff --git a/tests/FeatureTestCase.php b/tests/FeatureTestCase.php
index de0d193..084d811 100644
--- a/tests/FeatureTestCase.php
+++ b/tests/FeatureTestCase.php
@@ -17,7 +17,7 @@ abstract class FeatureTestCase extends BaseTestCase
     {
         parent::setUp();
 
-        Carbon::setTestNow(Carbon::now());
+        Carbon::setTestNow(Carbon::createFromDate(2022, 1, 1));
         $this->createCurrentYearPeriod();
     }
 }
diff --git a/tests/Unit/VacationRequestStatesTest.php b/tests/Unit/VacationRequestStatesTest.php
new file mode 100644
index 0000000..ed943d6
--- /dev/null
+++ b/tests/Unit/VacationRequestStatesTest.php
@@ -0,0 +1,100 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Tests\Unit;
+
+use Illuminate\Foundation\Testing\DatabaseMigrations;
+use Illuminate\Support\Carbon;
+use Tests\TestCase;
+use Tests\Traits\InteractsWithYearPeriods;
+use Toby\Domain\Enums\VacationRequestState;
+use Toby\Domain\Enums\VacationType;
+use Toby\Domain\VacationRequestStateManager;
+use Toby\Eloquent\Models\User;
+use Toby\Eloquent\Models\VacationRequest;
+use Toby\Eloquent\Models\YearPeriod;
+
+class VacationRequestStatesTest extends TestCase
+{
+    use DatabaseMigrations;
+    use InteractsWithYearPeriods;
+
+    protected VacationRequestStateManager $stateManager;
+
+    protected function setUp(): void
+    {
+        parent::setUp();
+
+        $this->stateManager = $this->app->make(VacationRequestStateManager::class);
+
+        $this->createCurrentYearPeriod();
+    }
+
+    public function testAfterCreatingVacationRequestOfTypeVacationItTransitsToProperState(): void
+    {
+        $user = User::factory()->createQuietly();
+
+        $currentYearPeriod = YearPeriod::current();
+
+        /** @var VacationRequest $vacationRequest */
+        $vacationRequest = VacationRequest::factory([
+            "type" => VacationType::Vacation->value,
+            "state" => VacationRequestState::Created,
+            "from" => Carbon::create($currentYearPeriod->year, 2, 1)->toDateString(),
+            "to" => Carbon::create($currentYearPeriod->year, 2, 4)->toDateString(),
+            "comment" => "Comment for the vacation request.",
+        ])
+            ->for($user)
+            ->for($currentYearPeriod)
+            ->create();
+
+        $this->stateManager->waitForTechnical($vacationRequest);
+
+        $this->assertEquals(VacationRequestState::WaitingForTechnical, $vacationRequest->state);
+    }
+
+    public function testAfterCreatingVacationRequestOfTypeSickVacationItTransitsToProperState(): void
+    {
+        $user = User::factory()->createQuietly();
+
+        $currentYearPeriod = YearPeriod::current();
+
+        /** @var VacationRequest $vacationRequest */
+        $vacationRequest = VacationRequest::factory([
+            "type" => VacationType::Sick->value,
+            "state" => VacationRequestState::Created,
+            "from" => Carbon::create($currentYearPeriod->year, 2, 1)->toDateString(),
+            "to" => Carbon::create($currentYearPeriod->year, 2, 4)->toDateString(),
+        ])
+            ->for($user)
+            ->for($currentYearPeriod)
+            ->create();
+
+        $this->stateManager->approve($vacationRequest);
+
+        $this->assertEquals(VacationRequestState::Approved, $vacationRequest->state);
+    }
+
+    public function testAfterCreatingVacationRequestOfTypeTimeInLieuItTransitsToProperState(): void
+    {
+        $user = User::factory()->createQuietly();
+
+        $currentYearPeriod = YearPeriod::current();
+
+        /** @var VacationRequest $vacationRequest */
+        $vacationRequest = VacationRequest::factory([
+            "type" => VacationType::TimeInLieu->value,
+            "state" => VacationRequestState::Created,
+            "from" => Carbon::create($currentYearPeriod->year, 2, 2)->toDateString(),
+            "to" => Carbon::create($currentYearPeriod->year, 2, 2)->toDateString(),
+        ])
+            ->for($user)
+            ->for($currentYearPeriod)
+            ->create();
+
+        $this->stateManager->approve($vacationRequest);
+
+        $this->assertEquals(VacationRequestState::Approved, $vacationRequest->state);
+    }
+}
diff --git a/webpack.mix.js b/webpack.mix.js
index a2cb30f..4a7f97f 100644
--- a/webpack.mix.js
+++ b/webpack.mix.js
@@ -1,10 +1,10 @@
-const mix = require('laravel-mix');
-const webpackConfig = require('./webpack.config');
+const mix = require('laravel-mix')
+const webpackConfig = require('./webpack.config')
 
-mix.js("resources/js/app.js", "public/js")
-    .vue(3)
-    .postCss("resources/css/app.css", "public/css", [
-        require("tailwindcss"),
-    ])
-    .webpackConfig(webpackConfig)
-    .sourceMaps();
+mix.js('resources/js/app.js', 'public/js')
+  .vue(3)
+  .postCss('resources/css/app.css', 'public/css', [
+    require('tailwindcss'),
+  ])
+  .webpackConfig(webpackConfig)
+  .sourceMaps()