.pixel-container {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        .pixel-container body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            background: linear-gradient(135deg, #e3f2fd 0%, #f8f9fa 100%);
            color: #4a76a8;
            min-height: 100vh;
            padding: 10px;
        }
        
        .pixel-container {
            max-width: 1200px;
            margin: 0 auto;
            background: white;
            border-radius: 12px;
            box-shadow: 0 4px 20px rgba(25, 118, 210, 0.1);
            overflow: hidden;
        }
        
        .pixel-container .header {
            background: linear-gradient(135deg, #4a76a8 0%, #1565c0 100%);
            color: white;
            padding: 15px 20px;
            text-align: center;
        }
        
        .pixel-container .header h1 {
            font-size: 24px;
            margin-bottom: 10px;
        }
        
        .pixel-container .mode-selector {
            display: flex;
            gap: 10px;
            justify-content: center;
            flex-wrap: wrap;
        }
        
        .pixel-container .mode-btn {
            background: rgba(255,255,255,0.2);
            border: 2px solid transparent;
            color: white;
            padding: 8px 16px;
            border-radius: 20px;
            cursor: pointer;
            transition: all 0.3s;
            font-size: 14px;
        }
        
        .pixel-container .mode-btn:hover {
            background: rgba(255,255,255,0.3);
        }
        
        .pixel-container .mode-btn.active {
            background: white;
            color: #4a76a8;
            border-color: white;
        }
        
        .pixel-container .main-content {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            padding: 20px;
        }
        
        .pixel-container .canvas-section {
            flex: 1;
            min-width: 300px;
        }
        
        .pixel-container .canvas-container {
            background: #f5f5f5;
            border-radius: 8px;
            padding: 20px;
            text-align: center;
            margin-bottom: 20px;
        }
        
        .pixel-container .canvas-container h3 {
            margin-bottom: 15px;
            color: #4a76a8;
        }
        
        .pixel-container #pixelCanvas {
            border: 2px solid #4a76a8;
            cursor: crosshair;
            image-rendering: pixelated;
            width: 400px;
            max-width: 100%;
            height: auto;
        }
        
        .pixel-container .preview-container {
            background: #f5f5f5;
            border-radius: 8px;
            padding: 20px;
            text-align: center;
        }
        
        .pixel-container .preview-container h3 {
            margin-bottom: 15px;
            color: #4a76a8;
        }
        
        .pixel-container #previewCanvas {
            border: 2px solid #4a76a8;
            border-radius: 4px;
            max-width: 200px;
            height: auto;
            image-rendering: pixelated;
        }
        
        .pixel-container .tools-section {
            width: 280px;
            min-width: 280px;
        }
        
        .pixel-container .tool-panel {
            background: #f8f9fa;
            border-radius: 8px;
            padding: 20px;
            margin-bottom: 20px;
        }
        
        .pixel-container .tool-panel h3 {
            margin-bottom: 15px;
            color: #4a76a8;
            font-size: 18px;
        }
        
        .pixel-container .tools {
            display: flex;
            gap: 10px;
            margin-bottom: 20px;
        }
        
        .pixel-container .tool-btn {
            flex: 1;
            background: white;
            border: 2px solid #e0e0e0;
            color: #4a76a8;
            padding: 12px;
            border-radius: 8px;
            cursor: pointer;
            transition: all 0.3s;
            font-size: 14px;
        }
        
        .pixel-container .tool-btn:hover {
            border-color: #4a76a8;
            transform: translateY(-1px);
        }
        
        .pixel-container .tool-btn.active {
            background: #4a76a8;
            color: white;
            border-color: #4a76a8;
        }
        
        .pixel-container .color-picker {
            margin-bottom: 20px;
        }
        
        .pixel-container .color-picker label {
            display: block;
            margin-bottom: 8px;
            font-weight: 500;
        }
        
        .pixel-container #colorPicker {
            width: 100%;
            height: 50px;
            border: none;
            border-radius: 8px;
            cursor: pointer;
        }
        
        .pixel-container .palette-container {
            display: none;
        }
        
        .pixel-container .palette-container.active {
            display: block;
        }
        
        .pixel-container .palette-grid {
            display: grid;
            grid-template-columns: repeat(8, 1fr);
            gap: 4px;
            margin-bottom: 15px;
        }
        
        .pixel-container .palette-color {
            width: 30px;
            height: 30px;
            border: 2px solid #e0e0e0;
            border-radius: 4px;
            cursor: pointer;
            transition: all 0.3s;
        }
        
        .pixel-container .palette-color:hover {
            transform: scale(1.1);
        }
        
        .pixel-container .palette-color.active {
            border-color: #4a76a8;
            border-width: 3px;
        }
        
        .pixel-container .file-ops {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        
        .pixel-container .file-btn {
            background-color: #4a76a8;
            color: white;
            border: none;
            padding: 12px 20px;
            border-radius: 8px;
            cursor: pointer;
            font-size: 14px;
            transition: all 0.3s;
            position: relative;
            overflow: hidden;
        }
        
        .pixel-container .file-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 15px rgba(25, 118, 210, 0.3);
        }
        
        .pixel-container .file-btn:active {
            transform: translateY(0);
        }
        
        .pixel-container #fileInput {
            display: none;
        }
        
        .pixel-container .status {
            background: #e3f2fd;
            padding: 10px;
            border-radius: 8px;
            margin-top: 15px;
            font-size: 12px;
            color: #4a76a8;
        }
        
        @media (max-width: 768px) {
            .pixel-container .main-content {
                flex-direction: column;
            }
            
            .pixel-container .tools-section {
                width: 100%;
                min-width: unset;
            }
            
            .pixel-container .mode-selector {
                flex-direction: column;
                align-items: center;
            }
            
            .pixel-container .mode-btn {
                width: 200px;
                text-align: center;
            }
            
            .pixel-container .tools {
                flex-direction: column;
            }
            
            .pixel-container .file-ops {
                flex-direction: row;
                flex-wrap: wrap;
            }
            
            .pixel-container .file-btn {
                flex: 1;
                min-width: 120px;
            }
        }
        
        @media (max-width: 480px) {
            .pixel-container .container {
                margin: 0;
                border-radius: 0;
            }
            
            .pixel-container body {
                padding: 0;
            }
            
            .pixel-container .header {
                padding: 10px;
            }
            
            .pixel-container .header h1 {
                font-size: 20px;
            }
            
            .pixel-container .main-content {
                padding: 15px;
            }
        }