* {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        body {
            background-color: #f5f5f5;
            color: #333;
            line-height: 1.6;
        }
        
        .container {
            max-width: 800px;
            margin: 20px auto;
            background-color: #fff;
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            padding: 30px;
        }
        
        h1 {
            text-align: center;
            margin-bottom: 30px;
            color: #2c3e50;
        }
        
        .tabs {
            display: flex;
            margin-bottom: 20px;
            border-bottom: 1px solid #ddd;
        }
        
        .tab {
            padding: 10px 20px;
            cursor: pointer;
            background-color: #f1f1f1;
            border: 1px solid #ddd;
            border-bottom: none;
            border-radius: 5px 5px 0 0;
            margin-right: 5px;
        }
        
        .tab.active {
            background-color: #fff;
            border-bottom: 1px solid #fff;
            margin-bottom: -1px;
            font-weight: bold;
            color: #2c3e50;
        }
        
        .tab-content {
            display: none;
            padding: 20px;
            border: 1px solid #ddd;
            border-top: none;
            border-radius: 0 0 5px 5px;
        }
        
        .tab-content.active {
            display: block;
        }
        
        .upload-area {
            border: 2px dashed #ccc;
            border-radius: 5px;
            padding: 30px;
            text-align: center;
            margin-bottom: 20px;
            cursor: pointer;
            transition: all 0.3s;
        }
        
        .upload-area:hover {
            border-color: #3498db;
            background-color: #f8f9fa;
        }
        
        .upload-area img {
            max-width: 100%;
            max-height: 300px;
            margin-top: 15px;
            display: none;
        }
        
        .url-input {
            width: 100%;
            padding: 10px;
            border: 1px solid #ddd;
            border-radius: 5px;
            margin-bottom: 15px;
        }
        
        button {
            background-color: #3498db;
            color: white;
            border: none;
            padding: 10px 20px;
            border-radius: 5px;
            cursor: pointer;
            font-size: 16px;
            transition: background-color 0.3s;
        }
        
        button:hover {
            background-color: #2980b9;
        }
        
        .result-area {
            margin-top: 30px;
            padding: 20px;
            border: 1px solid #ddd;
            border-radius: 5px;
            background-color: #f9f9f9;
            position: relative;
        }
        
        .result-text {
            white-space: pre-wrap;
            word-break: break-all;
            margin-bottom: 15px;
        }
        
        .copy-btn {
            position: absolute;
            top: 10px;
            right: 10px;
            background-color: #27ae60;
            padding: 5px 10px;
            font-size: 14px;
        }
        
        .copy-btn:hover {
            background-color: #219653;
        }
        
        .regenerate-btn {
            position: absolute;
            top: 10px;
            right: 80px;
            background-color: #f39c12;
            padding: 5px 10px;
            font-size: 14px;
        }
        
        .regenerate-btn:hover {
            background-color: #e67e22;
        }
        
        .generate-btn {
            position: absolute;
            top: 10px;
            right: 150px;
            background-color: #9b59b6;
            padding: 5px 10px;
            font-size: 14px;
        }
        
        .generate-btn:hover {
            background-color: #8e44ad;
        }
        
        .error {
            color: #e74c3c;
            margin-top: 10px;
        }
        
        .loading {
            text-align: center;
            margin: 20px 0;
            display: none;
        }
        
        .loading-spinner {
            border: 4px solid #f3f3f3;
            border-top: 4px solid #3498db;
            border-radius: 50%;
            width: 30px;
            height: 30px;
            animation: spin 1s linear infinite;
            margin: 0 auto;
        }
        
        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }
        
        @media (max-width: 600px) {
            .container {
                padding: 15px;
            }
            
            h1 {
                font-size: 24px;
                margin-bottom: 20px;
            }
            
            .tab {
                padding: 8px 15px;
                font-size: 14px;
            }
            
            .upload-area {
                padding: 20px;
            }
            
            .regenerate-btn {
                right: 70px;
            }
            
            .generate-btn {
                right: 140px;
            }
        }