* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            background: linear-gradient(135deg, #0f0c29 0%, #302b63 50%, #24243e 100%);
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 20px;
        }
        
        .container {
            background: rgba(15, 15, 35, 0.7);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-radius: 20px;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3), 0 0 20px rgba(106, 90, 205, 0.2);
            padding: 40px;
            max-width: 800px;
            width: 100%;
            border: 1px solid rgba(92, 107, 192, 0.3);
        }
        
        h1 {
            text-align: center;
            color: #e0e0ff;
            margin-bottom: 30px;
            font-size: 28px;
            text-shadow: 0 0 10px rgba(102, 126, 234, 0.7);
        }
        
        .section {
            margin-bottom: 30px;
            padding: 25px;
            background: rgba(20, 20, 45, 0.6);
            border-radius: 15px;
            transition: all 0.3s ease;
            border: 1px solid rgba(92, 107, 192, 0.2);
        }
        
        .section:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4), 0 0 15px rgba(102, 126, 234, 0.3);
            border-color: rgba(102, 126, 234, 0.4);
        }
        
        .section-title {
            font-size: 20px;
            color: #aab2ff;
            margin-bottom: 15px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .icon {
            width: 24px;
            height: 24px;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 14px;
            box-shadow: 0 0 8px rgba(102, 126, 234, 0.7);
        }
        
        .upload-area {
            border: 2px dashed rgba(92, 107, 192, 0.5);
            border-radius: 10px;
            padding: 30px;
            text-align: center;
            cursor: pointer;
            transition: all 0.3s ease;
            background: rgba(15, 15, 35, 0.4);
            color: #b0b7ff;
        }
        
        .upload-area:hover {
            border-color: #667eea;
            background: rgba(102, 126, 234, 0.15);
            box-shadow: 0 0 15px rgba(102, 126, 234, 0.3);
        }
        
        .upload-area.dragover {
            border-color: #667eea;
            background: rgba(102, 126, 234, 0.25);
            box-shadow: 0 0 20px rgba(102, 126, 234, 0.5);
        }
        
        input[type="file"] {
            display: none;
        }
        
        .preview-image {
            max-width: 100%;
            max-height: 300px;
            border-radius: 10px;
            margin-top: 15px;
            box-shadow: 0 0 15px rgba(0, 0, 0, 0.4);
            border: 1px solid rgba(92, 107, 192, 0.3);
        }
        
        textarea {
            width: 100%;
            min-height: 150px;
            padding: 15px;
            border: 1px solid rgba(92, 107, 192, 0.3);
            border-radius: 10px;
            font-family: 'Courier New', monospace;
            font-size: 14px;
            resize: vertical;
            transition: all 0.3s ease;
            background: rgba(15, 15, 35, 0.4);
            color: #e0e0ff;
        }
        
        textarea:focus {
            outline: none;
            border-color: #667eea;
            box-shadow: 0 0 15px rgba(102, 126, 234, 0.5);
        }
        
        .button-group {
            display: flex;
            gap: 10px;
            margin-top: 15px;
            flex-wrap: wrap;
        }
        
        button {
            padding: 10px 20px;
            border: none;
            border-radius: 8px;
            font-size: 16px;
            cursor: pointer;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            gap: 5px;
            background: linear-gradient(135deg, #667eea 0%, #5c3a8c 100%);
            color: white;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
        }
        
        .btn-primary {
            background: linear-gradient(135deg, #667eea 0%, #5c3a8c 100%);
        }
        
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
        }
        
        .btn-success {
            background: linear-gradient(135deg, #0f9b0f 0%, #3ddb7f 100%);
        }
        
        .btn-success:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 20px rgba(15, 155, 15, 0.4);
        }
        
        .btn-warning {
            background: linear-gradient(135deg, #ff8c00 0%, #ff2d55 100%);
        }
        
        .btn-warning:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 20px rgba(255, 140, 0, 0.4);
        }
        
        .info-text {
            font-size: 14px;
            color: #a0a8ff;
            margin-top: 10px;
            text-shadow: 0 0 5px rgba(160, 168, 255, 0.3);
        }
        
        .error-message {
            color: #ff6b6b;
            font-size: 14px;
            margin-top: 10px;
            text-shadow: 0 0 5px rgba(255, 107, 107, 0.3);
        }
        
        .success-message {
            color: #3ddb7f;
            font-size: 14px;
            margin-top: 10px;
            text-shadow: 0 0 5px rgba(61, 219, 127, 0.3);
        }
        
        @media (max-width: 600px) {
            .container {
                padding: 20px;
            }
            
            h1 {
                font-size: 24px;
            }
            
            .section-title {
                font-size: 18px;
            }
        }