:root {
            --primary-color: #4CAF50;
            --secondary-color: #f44336;
            --tertiary-color: #FF9800;
            --dark-color: #333;
            --light-color: #f5f5f5;
            --border-color: #ddd;
            --text-color: #333;
            --text-light: #777;
        }
        
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            color: var(--text-color);
            background-color: #f0f0f0;
            height: 100vh;
            display: flex;
            flex-direction: column;
            overflow: hidden;
        }
        
        #app {
            display: flex;
            flex: 1;
            overflow: hidden;
        }
        
        /* Left Toolbox */
        #toolbox {
            width: 60px;
            background-color: var(--dark-color);
            color: white;
            display: flex;
            flex-direction: column;
            padding: 10px 0;
            height: 100%;
        }
        
        .tool-group {
            margin-bottom: 20px;
            border-bottom: 1px solid rgba(255,255,255,0.1);
            padding-bottom: 10px;
        }
        
        .tool-group h3 {
            font-size: 10px;
            text-align: center;
            text-transform: uppercase;
            margin-bottom: 8px;
            color: rgba(255,255,255,0.5);
        }
        
        .tool-btn {
            width: 40px;
            height: 40px;
            margin: 5px auto;
            background-color: rgba(255,255,255,0.1);
            border: none;
            border-radius: 4px;
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.2s;
        }
        
        .tool-btn:hover {
            background-color: rgba(255,255,255,0.2);
        }
        
        .tool-btn.active {
            background-color: var(--primary-color);
        }
        
        .tool-btn i {
            font-size: 18px;
        }
        
        /* Main Content Area */
        #main-content {
            flex: 1;
            display: flex;
            flex-direction: column;
            overflow: hidden;
        }
        
        /* Right Panel */
        #right-panel {
            width: 250px;
            background-color: white;
            border-left: 1px solid var(--border-color);
            display: flex;
            flex-direction: column;
            height: 100%;
        }
        
        .panel-tabs {
            display: flex;
            border-bottom: 1px solid var(--border-color);
        }
        
        .panel-tab {
            flex: 1;
            padding: 12px 5px;
            text-align: center;
            cursor: pointer;
            font-size: 13px;
            font-weight: 500;
            transition: all 0.2s;
        }
        
        .panel-tab.active {
            color: var(--primary-color);
            border-bottom: 2px solid var(--primary-color);
        }
        
        .panel-content {
            flex: 1;
            overflow-y: auto;
            padding: 15px;
            display: none;
        }
        
        .panel-content.active {
            display: block;
        }
        
        .panel-section {
            margin-bottom: 20px;
        }
        
        .panel-section h3 {
            font-size: 13px;
            margin-bottom: 10px;
            color: var(--text-light);
            text-transform: uppercase;
        }
        
        /* Bottom Panel */
        #bottom-panel {
            background-color: white;
            border-top: 1px solid var(--border-color);
            padding: 10px 15px;
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
        }
        
        .btn {
            padding: 8px 12px;
            border-radius: 4px;
            border: none;
            background-color: var(--primary-color);
            color: white;
            cursor: pointer;
            font-size: 13px;
            display: flex;
            align-items: center;
            gap: 5px;
            transition: all 0.2s;
        }
        
        .btn:hover {
            opacity: 0.9;
        }
        
        .btn-secondary {
            background-color: var(--secondary-color);
        }
        
        .btn-tertiary {
            background-color: var(--tertiary-color);
        }
        
        .btn-outline {
            background-color: transparent;
            border: 1px solid var(--border-color);
            color: var(--text-color);
        }
        
        .btn-outline:hover {
            background-color: var(--light-color);
        }
        
        .btn i {
            font-size: 14px;
        }
        
        .btn-group {
            display: flex;
            border-radius: 4px;
            overflow: hidden;
            border: 1px solid var(--border-color);
        }
        
        .btn-group .btn {
            border-radius: 0;
            border: none;
            border-right: 1px solid rgba(0,0,0,0.1);
        }
        
        .btn-group .btn:last-child {
            border-right: none;
        }
        
        /* Canvas Area */
        #canvas-area {
            flex: 1;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: auto;
            background-color: #e0e0e0;
            position: relative;
        }
        
        #canvas-container {
            position: relative;
            box-shadow: 0 0 20px rgba(0,0,0,0.1);
            background-color: white;
            transform-origin: center center;
            transition: transform 0.2s;
        }
        
        #myCanvas {
            display: block;
            background: white;
        }
        
        .zoom-controls {
            position: absolute;
            bottom: 20px;
            right: 20px;
            background-color: white;
            border-radius: 4px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            display: flex;
            flex-direction: column;
            overflow: hidden;
            z-index: 10;
        }
        
        .zoom-btn {
            padding: 8px 12px;
            background-color: white;
            border: none;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .zoom-btn:hover {
            background-color: var(--light-color);
        }
        
        .zoom-btn i {
            font-size: 14px;
        }
        
        .zoom-separator {
            height: 1px;
            background-color: var(--border-color);
        }
        
        .status-bar {
            padding: 5px 15px;
            font-size: 12px;
            color: var(--text-light);
            background-color: white;
            border-top: 1px solid var(--border-color);
            display: flex;
            justify-content: space-between;
        }
        
        .file-input-wrapper {
            position: relative;
            display: inline-block;
        }
        
        .file-input-wrapper input[type=file] {
            position: absolute;
            left: 0;
            top: 0;
            opacity: 0;
            width: 100%;
            height: 100%;
            cursor: pointer;
        }

        /* Form elements */
        input[type="range"] {
            width: 100%;
        }
        
        input[type="color"] {
            width: 100%;
            height: 30px;
            border: 1px solid var(--border-color);
            border-radius: 4px;
            cursor: pointer;
        }
        
        /* Layer panel */
        .layer-item {
            padding: 8px;
            border-radius: 4px;
            background-color: var(--light-color);
            margin-bottom: 5px;
            display: flex;
            align-items: center;
            cursor: pointer;
        }
        
        .layer-item.active {
            background-color: #e3f2fd;
            border-left: 3px solid var(--primary-color);
        }
        
        .layer-item i {
            margin-right: 8px;
            font-size: 14px;
        }
        
        .layer-item-name {
            flex: 1;
            font-size: 13px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        
        /* Icons (using Unicode for simplicity) */
        .icon {
            font-style: normal;
            font-family: Arial, sans-serif;
        }

        /* Effect controls */
        .effect-card {
            background-color: white;
            border-radius: 4px;
            box-shadow: 0 1px 3px rgba(0,0,0,0.1);
            margin-bottom: 15px;
            overflow: hidden;
        }
        
        .effect-header {
            padding: 10px;
            background-color: #f5f5f5;
            border-bottom: 1px solid var(--border-color);
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
        }
        
        .effect-title {
            font-weight: 500;
            font-size: 13px;
        }
        
        .effect-toggle {
            color: var(--text-light);
            font-size: 12px;
        }
        
        .effect-content {
            padding: 10px;
            display: none;
        }
        
        .effect-content.active {
            display: block;
        }
        
        .effect-control {
            margin-bottom: 10px;
        }
        
        .effect-control label {
            display: block;
            font-size: 12px;
            margin-bottom: 5px;
            color: var(--text-light);
        }
        
        .effect-control-row {
            display: flex;
            gap: 5px;
            align-items: center;
        }
        
        .effect-control-row input[type="range"] {
            flex: 1;
        }
        
        .effect-control-row input[type="number"] {
            width: 50px;
            padding: 5px;
            border: 1px solid var(--border-color);
            border-radius: 4px;
        }
        
        .radius-controls {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 5px;
        }
        
        .radius-control {
            display: flex;
            align-items: center;
            gap: 5px;
        }
        
        .radius-control label {
            margin: 0;
            width: 30px;
        }
        
        .radius-control input {
            flex: 1;
        }
        
        /* Modal styles */
        .modal {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0,0,0,0.5);
            z-index: 100;
            justify-content: center;
            align-items: center;
        }
        
        .modal-content {
            background-color: white;
            padding: 20px;
            border-radius: 5px;
            width: 300px;
            max-height: 80vh;
            overflow-y: auto;
        }
        
        .modal-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 15px;
        }
        
        .modal-title {
            font-size: 18px;
            font-weight: bold;
        }
        
        .close-modal {
            background: none;
            border: none;
            font-size: 20px;
            cursor: pointer;
        }
        
        .effect-option {
            padding: 10px;
            margin-bottom: 5px;
            background-color: var(--light-color);
            border-radius: 4px;
            cursor: pointer;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        
        .effect-option:hover {
            background-color: #e0e0e0;
        }
        
        .effect-icon {
            font-size: 20px;
        }
        
        /* Active effects list */
        .active-effect {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 8px;
            background-color: var(--light-color);
            border-radius: 4px;
            margin-bottom: 5px;
        }
        
        .active-effect-name {
            font-size: 13px;
        }
        
        .active-effect-controls {
            display: flex;
            gap: 5px;
        }
        
        .active-effect-toggle {
            color: var(--primary-color);
            cursor: pointer;
        }
        
        .active-effect-remove {
            color: var(--secondary-color);
            cursor: pointer;
        }
        
        /* Image transform controls */
        .image-transform-controls {
            display: none;
            background-color: white;
            padding: 10px;
            border-bottom: 1px solid var(--border-color);
        }
        
        .image-transform-controls.active {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        
        .transform-btn {
            width: 30px;
            height: 30px;
            border: 1px solid var(--border-color);
            border-radius: 4px;
            background-color: white;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .transform-btn:hover {
            background-color: var(--light-color);
        }
        
        /* Responsive adjustments */
        @media (max-width: 1200px) {
            #right-panel {
                width: 200px;
            }
        }

        /*.image-transform-controls {
            display: none;
            flex-wrap: wrap;
            background-color: white;
            border-radius: 4px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.2);
            padding: 5px;
            gap: 5px;
            z-index: 1000;
        }

        .image-transform-controls.active {
            display: flex;
        }*/

        /* Add this to your existing CSS */
        .context-menu {
            position: absolute;
            background: white;
            border: 1px solid #ddd;
            border-radius: 4px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.2);
            z-index: 1000;
            min-width: 150px;
            display: none;
        }

        .context-menu-item {
            padding: 8px 12px;
            cursor: pointer;
            font-size: 13px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .context-menu-item:hover {
            background-color: #f0f0f0;
        }

        .context-menu-separator {
            height: 1px;
            background-color: #ddd;
            margin: 4px 0;
        }