ScanPage UI improvment

src/lib/pages/scan/ScanPage.svelte

@@ -1,8 +1,8 @@
 <script>
-  import { createEventDispatcher } from 'svelte';
+  import { onDestroy } from 'svelte';
   import { processImage, createBlobUrl, downloadBlob } from '$lib/common/services/scan.service.js';
 
-  const dispatch = createEventDispatcher();
+  let { onBack = () => {} } = $props();
 
   /** @type {'upload' | 'unwrapping' | 'unwrapped' | 'deblurring' | 'deblurred' | 'correcting' | 'corrected'} */
   let stage = $state('upload');
@@ -16,7 +16,7 @@
     if (currentBlobUrl) {
       URL.revokeObjectURL(currentBlobUrl);
     }
-    dispatch('back');
+    onBack();
   }
 
   async function handleFileSelect(event) {
@@ -109,8 +109,6 @@
     fileName = '';
   }
 
-  // Cleanup on unmount
-  import { onDestroy } from 'svelte';
   onDestroy(() => {
     if (currentBlobUrl) {
       URL.revokeObjectURL(currentBlobUrl);
@@ -119,13 +117,8 @@
 </script>
 
 <div class="scan-page">
-  <header class="scan-header">
+  <header class="header">
-    <button class="back-button" onclick={handleBack}>
+    <button class="back-btn" onclick={handleBack}>←</button>
-      <svg width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
-        <path d="M19 12H5M12 19l-7-7 7-7"/>
-      </svg>
-      Назад
-    </button>
     <h1>Сканирование документов</h1>
   </header>
 
@@ -171,9 +164,7 @@
       </div>
     {:else}
       <div class="preview-area">
-        <div class="preview-container">
+        <img src={currentBlobUrl} alt="Обработанный документ" class="preview-img" />
-          <img src={currentBlobUrl} alt="Обработанный документ" />
-        </div>
         
         <div class="preview-actions">
           {#if stage === 'unwrapped'}
@@ -254,49 +245,46 @@
 <style>
   .scan-page {
     width: 100%;
-    max-width: 1200px;
+    min-height: 100dvh;
-    margin: 0 auto;
-    padding: 20px;
-    min-height: 100vh;
-    box-sizing: border-box;
-  }
-
-  .scan-header {
     display: flex;
-    align-items: center;
+    flex-direction: column;
-    gap: 20px;
+    background: radial-gradient(120% 60% at 50% -10%, rgba(99, 102, 241, 0.18) 0%, transparent 60%);
-    margin-bottom: 40px;
+    font-family: system-ui, -apple-system, sans-serif;
-    padding-bottom: 20px;
-    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
-  }
-
-  .back-button {
-    display: flex;
-    align-items: center;
-    gap: 8px;
-    padding: 10px 16px;
-    background: rgba(255, 255, 255, 0.05);
-    border: 1px solid rgba(255, 255, 255, 0.1);
-    border-radius: 8px;
     color: #f5f7fa;
-    font-size: 16px;
-    cursor: pointer;
-    transition: all 0.2s;
   }
 
-  .back-button:hover {
+  .header {
-    background: rgba(255, 255, 255, 0.1);
+    padding: 24px 20px 8px;
-    border-color: rgba(255, 255, 255, 0.2);
+    display: flex;
+    align-items: center;
+    position: relative;
   }
 
-  .scan-header h1 {
+  .back-btn {
-    margin: 0;
+    background: none;
-    font-size: 32px;
+    border: none;
+    color: #6366f1;
+    font-size: 15px;
     font-weight: 600;
-    color: #f5f7fa;
+    cursor: pointer;
+    padding: 8px 4px;
+    margin-right: auto;
+    min-height: 44px;
+  }
+
+  .header h1 {
+    margin: 0;
+    font-size: 28px;
+    font-weight: 700;
+    position: absolute;
+    left: 50%;
+    transform: translateX(-50%);
+    white-space: nowrap;
   }
 
   .scan-content {
+    flex: 1;
+    padding: 24px 20px 16px;
     display: flex;
     flex-direction: column;
     gap: 24px;
@@ -394,31 +382,23 @@
     display: flex;
     flex-direction: column;
     gap: 32px;
-  }
-
-  .preview-container {
-    background: rgba(255, 255, 255, 0.02);
-    border: 1px solid rgba(255, 255, 255, 0.1);
-    border-radius: 16px;
-    padding: 24px;
-    display: flex;
-    justify-content: center;
     align-items: center;
-    min-height: 400px;
   }
 
-  .preview-container img {
+  .preview-img {
     max-width: 100%;
     max-height: 600px;
-    border-radius: 8px;
+    display: block;
     box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
   }
 
   .preview-actions {
+    width: 100%;
     background: rgba(255, 255, 255, 0.02);
     border: 1px solid rgba(255, 255, 255, 0.1);
     border-radius: 16px;
     padding: 32px;
+    box-sizing: border-box;
   }
 
   .action-group {
@@ -514,18 +494,12 @@
   }
 
   @media (max-width: 768px) {
-    .scan-page {
+    .scan-content {
-      padding: 12px;
+      padding: 16px 12px;
     }
 
-    .scan-header {
+    .header h1 {
-      flex-direction: column;
+      font-size: 22px;
-      align-items: flex-start;
-      gap: 12px;
-    }
-
-    .scan-header h1 {
-      font-size: 24px;
     }
 
     .upload-area,