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style.css

@@ -1,76 +1,401 @@
 * {
-    box-sizing: border-box;
-    padding: 0;
     margin: 0;
-    font-family: sans-serif;
+    padding: 0;
+    box-sizing: border-box;
 }
 
-html,
 body {
-    height: 100%;
+    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
+    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
+    min-height: 100vh;
+    padding: 20px;
 }
 
-body {
-    padding: 32px;
+.container {
+    max-width: 900px;
+    margin: 0 auto;
+}
+
+header {
+    text-align: center;
+    color: white;
+    margin-bottom: 30px;
+}
+
+header h1 {
+    font-size: 2.5rem;
+    margin-bottom: 10px;
+    text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
+}
+
+header p {
+    font-size: 1.1rem;
+    opacity: 0.95;
+}
+
+main {
+    background: white;
+    border-radius: 20px;
+    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
+    padding: 30px;
+}
+
+.tabs {
+    display: flex;
+    gap: 10px;
+    margin-bottom: 20px;
+}
+
+.tab-btn {
+    flex: 1;
+    padding: 12px;
+    border: none;
+    background: #f0f0f0;
+    border-radius: 10px;
+    cursor: pointer;
+    font-size: 1rem;
+    transition: all 0.3s;
+}
+
+.tab-btn.active {
+    background: linear-gradient(135deg, #667eea, #764ba2);
+    color: white;
+}
+
+.tab-content {
+    display: none;
+}
+
+.tab-content.active {
+    display: block;
+}
+
+#url-tab {
+    display: flex;
+    gap: 10px;
+}
+
+#image-url {
+    flex: 1;
+    padding: 12px;
+    border: 2px solid #e0e0e0;
+    border-radius: 10px;
+    font-size: 1rem;
+    transition: border-color 0.3s;
+}
+
+#image-url:focus {
+    outline: none;
+    border-color: #667eea;
 }
 
-body,
-#container {
+.file-label {
     display: flex;
     flex-direction: column;
-    justify-content: center;
     align-items: center;
+    justify-content: center;
+    padding: 40px;
+    border: 2px dashed #d0d0d0;
+    border-radius: 10px;
+    cursor: pointer;
+    transition: all 0.3s;
+    background: #fafafa;
 }
 
-#container {
-    position: relative;
-    gap: 0.4rem;
+.file-label:hover {
+    border-color: #667eea;
+    background: #f5f5ff;
+}
+
+.file-label.drag-over {
+    border-color: #667eea;
+    background: #f0f0ff;
+}
+
+.file-label svg {
+    stroke: #667eea;
+    margin-bottom: 10px;
+}
+
+.file-label span {
+    color: #666;
+}
+
+.file-hint {
+    font-size: 0.9rem;
+    margin-top: 5px;
+    color: #999;
+}
 
-    width: 640px;
-    height: 640px;
-    max-width: 100%;
-    max-height: 100%;
+.preview-section {
+    display: grid;
+    grid-template-columns: 1fr 1fr;
+    gap: 30px;
+    margin-top: 30px;
+}
 
-    border: 2px dashed #D1D5DB;
-    border-radius: 0.75rem;
+.image-preview {
+    aspect-ratio: 4/3;
+    background: #f8f8f8;
+    border-radius: 10px;
+    display: flex;
+    align-items: center;
+    justify-content: center;
     overflow: hidden;
+    border: 2px solid #e0e0e0;
+}
+
+.placeholder {
+    text-align: center;
+    color: #999;
+}
+
+.placeholder svg {
+    stroke: #d0d0d0;
+    margin-bottom: 10px;
+}
+
+.controls {
+    display: flex;
+    flex-direction: column;
+    gap: 15px;
+}
+
+.prompt-section label {
+    display: block;
+    margin-bottom: 5px;
+    color: #666;
+    font-size: 0.9rem;
+}
+
+#custom-prompt {
+    width: 100%;
+    padding: 10px;
+    border: 2px solid #e0e0e0;
+    border-radius: 8px;
+    resize: vertical;
+    min-height: 60px;
+    font-family: inherit;
+}
+
+.settings {
+    display: grid;
+    grid-template-columns: 1fr 1fr;
+    gap: 15px;
+}
+
+.setting-item label {
+    display: block;
+    margin-bottom: 5px;
+    color: #666;
+    font-size: 0.9rem;
+}
+
+.setting-item input,
+.setting-item select {
+    width: 100%;
+    padding: 8px;
+    border: 2px solid #e0e0e0;
+    border-radius: 8px;
+}
+
+.primary-btn {
+    padding: 14px 24px;
+    background: linear-gradient(135deg, #667eea, #764ba2);
+    color: white;
+    border: none;
+    border-radius: 10px;
+    font-size: 1rem;
     cursor: pointer;
-    margin: 1rem;
+    transition: transform 0.2s, box-shadow 0.2s;
+}
+
+.primary-btn:hover:not(:disabled) {
+    transform: translateY(-2px);
+    box-shadow: 0 10px 20px rgba(102, 126, 234, 0.3);
+}
+
+.primary-btn:disabled {
+    opacity: 0.5;
+    cursor: not-allowed;
+}
+
+.generate-btn {
+    position: relative;
+}
+
+.generate-btn.loading .btn-text {
+    opacity: 0;
+}
 
-    background-size: 100% 100%;
-    background-position: center;
-    background-repeat: no-repeat;
-    font-size: 18px;
+.generate-btn.loading .spinner {
+    display: block;
 }
 
-#upload {
+.spinner {
     display: none;
+    position: absolute;
+    top: 50%;
+    left: 50%;
+    transform: translate(-50%, -50%);
+    width: 20px;
+    height: 20px;
+    border: 2px solid white;
+    border-top-color: transparent;
+    border-radius: 50%;
+    animation: spin 0.8s linear infinite;
 }
 
-svg {
-    pointer-events: none;
+.output-section {
+    margin-top: 30px;
+    padding-top: 30px;
+    border-top: 2px solid #f0f0f0;
+}
+
+.output-section h2 {
+    color: #333;
+    margin-bottom: 15px;
+}
+
+.output-container {
+    background: #f8f8f8;
+    border-radius: 10px;
+    padding: 20px;
+    min-height: 100px;
+    max-height: 300px;
+    overflow-y: auto;
+    margin-bottom: 15px;
+    line-height: 1.6;
+}
+
+.output-placeholder {
+    color: #999;
+}
+
+.typing-indicator {
+    color: #667eea;
+    font-style: italic;
+}
+
+.typing-indicator::after {
+    content: '...';
+    animation: dots 1.5s infinite;
 }
 
-#example {
-    font-size: 14px;
-    text-decoration: underline;
+.secondary-btn {
+    padding: 10px 20px;
+    background: white;
+    color: #667eea;
+    border: 2px solid #667eea;
+    border-radius: 8px;
     cursor: pointer;
+    display: inline-flex;
+    align-items: center;
+    gap: 8px;
+    transition: all 0.3s;
 }
 
-#example:hover {
-    color: #2563EB;
+.secondary-btn:hover {
+    background: #667eea;
+    color: white;
 }
 
-.bounding-box {
-    position: absolute;
-    box-sizing: border-box;
-    border: solid 2px;
+.loading-overlay {
+    position: fixed;
+    top: 0;
+    left: 0;
+    right: 0;
+    bottom: 0;
+    background: rgba(0,0,0,0.8);
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    z-index: 1000;
+    opacity: 0;
+    pointer-events: none;
+    transition: opacity 0.3s;
+}
+
+.loading-overlay.active {
+    opacity: 1;
+    pointer-events: all;
 }
 
-.bounding-box-label {
+.loading-content {
+    text-align: center;
     color: white;
-    position: absolute;
-    font-size: 12px;
-    margin: -16px 0 0 -2px;
-    padding: 1px;
+}
+
+.loading-spinner {
+    width: 50px;
+    height: 50px;
+    border: 3px solid rgba(255,255,255,0.3);
+    border-top-color: white;
+    border-radius: 50%;
+    margin: 0 auto 20px;
+    animation: spin 0.8s linear infinite;
+}
+
+.notification {
+    position: fixed;
+    top: 20px;
+    right: 20px;
+    padding: 15px 20px;
+    border-radius: 10px;
+    color: white;
+    font-size: 0.95rem;
+    transform: translateX(400px);
+    transition: transform 0.3s;
+    z-index: 2000;
+}
+
+.notification.show {
+    transform: translateX(0);
+}
+
+.notification.success {
+    background: #4caf50;
+}
+
+.notification.error {
+    background: #f44336;
+}
+
+.notification.info {
+    background: #2196f3;
+}
+
+.error {
+    color: #f44336;
+    padding: 10px;
+    background: #ffebee;
+    border-radius: 5px;
+}
+
+@keyframes spin {
+    to { transform: rotate(360deg); }
+}
+
+@keyframes dots {
+    0%, 20% { content: '.'; }
+    40% { content: '..'; }
+    60%, 100% { content: '...'; }
+}
+
+@media (max-width: 768px) {
+    header h1 {
+        font-size: 2rem;
+    }
+    
+    .preview-section {
+        grid-template-columns: 1fr;
+    }
+    
+    .settings {
+        grid-template-columns: 1fr;
+    }
+    
+    main {
+        padding: 20px;
+    }
 }