* {
            box-sizing: border-box;
        }
        
        .hidden {
            display: none !important;
        }
        
        body {
            font-family: 'Source Sans Pro', sans-serif;
            margin: 0;
            padding: 0;
            background: #000000;
            color: #00ff00;
            height: 100vh;
            display: flex;
            flex-direction: column;
        }
        
        .main-content {
            display: flex;
            flex-direction: column;
            padding: 15px;
            flex: 1;
            width: 100%;
        }

        #image-switcher {
            padding: 8px;
        }
        
        .header-section {
            width: 100%;
            max-width: 100%;
            text-align: left;
            margin-bottom: 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            position: relative;
        }
        
        h1 {
            margin: 0;
            font-size: 18px;
            color: #00ff00;
            text-shadow: 0 0 10px #00ff00;
            letter-spacing: 2px;
        }
        
        /* ── V2 Set Tabs Bar ─────────────────────────────────────────────────── */
        .sets-tabs-bar {
            display: flex;
            align-items: stretch;
            gap: 2px;
            padding: 4px 8px 0;
            background: #000;
            border-bottom: 1px solid #333;
            min-height: 28px;
            flex-wrap: nowrap;
            overflow-x: auto;
        }
        .set-tab {
            display: flex;
            align-items: center;
            gap: 4px;
            padding: 3px 8px;
            background: #111;
            border: 1px solid #333;
            border-bottom: none;
            border-radius: 3px 3px 0 0;
            cursor: pointer;
            font-size: 9px;
            font-weight: 600;
            font-family: 'Source Sans Pro', sans-serif;
            color: #777;
            text-transform: uppercase;
            letter-spacing: 1px;
            white-space: nowrap;
            transition: background 0.15s, color 0.15s;
        }
        .set-tab:hover {
            background: #1a1a1a;
            color: #aaa;
        }
        .set-tab-active {
            background: #000;
            border-color: #00ff00;
            color: #00ff00;
        }
        .set-tab-name {
            cursor: pointer;
        }
        .set-tab-close {
            background: none;
            border: none;
            color: #555;
            cursor: pointer;
            font-size: 9px;
            padding: 0 2px;
            line-height: 1;
            transition: color 0.15s;
        }
        .set-tab-close:hover { color: #ff0066; }
        .set-tab-add {
            background: none;
            border: 1px solid #333;
            border-bottom: none;
            border-radius: 3px 3px 0 0;
            color: #444;
            cursor: pointer;
            font-size: 9px;
            font-weight: 600;
            font-family: 'Source Sans Pro', sans-serif;
            padding: 3px 10px;
            text-transform: uppercase;
            letter-spacing: 1px;
            transition: color 0.15s, border-color 0.15s;
        }
        .set-tab-add:hover { color: #00ff00; border-color: #00ff00; }
        .set-tab-rename-input {
            background: #000;
            border: 1px solid #00ff00;
            color: #00ff00;
            font-size: 9px;
            font-family: 'Source Sans Pro', sans-serif;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 1px;
            padding: 0 4px;
            width: 80px;
        }

        /* V2-ready image set container — will be replicable for IMAGE SETS feature */
        .image-set {
            width: 100%;
            padding-top: 8px;
        }

        .tab-navigation {
            display: flex;
            gap: 0;
            margin: 5px 0 0 0;
            padding-bottom: 24px;
            justify-content: flex-start;
            width: 100%;
        }
        
        .tab-btn {
            background: #000000;
            color: #00ff00;
            border: 1px solid #00ff00;
            border-right: none;
            padding: 4px 12px;
            border-radius: 0;
            cursor: pointer;
            font-weight: bold;
            font-size: 9px;
            font-family: 'Source Sans Pro', sans-serif;
            margin-bottom: 2px;
            transition: all 0.2s;
            box-shadow: none;
        }
        
        .tab-btn:first-child {
            border-radius: 2px 0 0 2px;
        }

        .tab-btn:last-child {
            border-radius: 0 2px 2px 0;
            border-right: 1px solid #00ff00;
        }
        
        .tab-btn:hover {
            background: #001100;
            box-shadow: inset 0 0 10px rgba(0, 255, 0, 0.3);
        }
        
        .tab-btn.active {
            background: #00ff00;
            color: #000000;
            box-shadow: none;
        }
        
        .tab-content {
            display: none;
            width: 100%;
        }
        
        .tab-content.active {
            display: block;
            width: 100%;
        }
        
        .builder-instructions {
            display: flex;
            gap: 15px;
            justify-content: center;
            margin: 20px 0;
            flex-wrap: wrap;
        }
        
        .builder-instructions .instruction-step {
            background: #001100;
            border: 1px solid #00ff00;
            padding: 8px 15px;
            border-radius: 2px;
            color: #009900;
            font-size: 9px;
            box-shadow: 0 0 10px rgba(0, 255, 0, 0.2);
            transition: all 0.2s;
        }
        
        .builder-instructions .instruction-step:hover {
            color: #00ff00;
            box-shadow: 0 0 15px rgba(0, 255, 0, 0.4);
        }
        
        .help-btn {
            background: #001100;
            color: #00ff00;
            border: 2px solid #00ff00;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            cursor: pointer;
            font-weight: bold;
            font-size: 16px;
            font-family: 'Source Sans Pro', sans-serif;
            transition: all 0.2s;
            box-shadow: 0 0 10px rgba(0, 255, 0, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 0;
        }
        
        .help-btn:hover {
            background: #00ff00;
            color: #000000;
            box-shadow: 0 0 20px rgba(0, 255, 0, 0.6);
            transform: scale(1.1);
        }

        #resetButton:hover {
            background: #1a0000;
            color: #ff3388;
            border-color: #ff3388;
            box-shadow: 0 0 25px rgba(255, 0, 102, 0.9);
            transform: scale(1.08);
        }

        .modal-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.8);
            z-index: 1000;
            justify-content: center;
            align-items: center;
        }
        
        .modal-overlay.active {
            display: flex;
        }
        
        .modal-content {
            background: #000000;
            border: 2px solid #00ff00;
            border-radius: 2px;
            padding: 4px;
            width: 600px;
            max-width: 90vw;
            max-height: 85vh;
            box-shadow: 0 0 30px rgba(0, 255, 0, 0.5);
            position: relative;
            display: flex;
            flex-direction: column;
        }
        
        .modal-header {
            color: #00ff00;
            font-size: 11px;
            font-weight: bold;
            margin-bottom: 5px;
            padding: 5px 0;
            border-bottom: 1px solid #003300;
            text-align: center;
            flex-shrink: 0;
        }
        
        .modal-close-x {
            position: absolute;
            top: 0;
            right: 0;
            background: none;
            border: none;
            color: #00ff00;
            font-size: 24px;
            cursor: pointer;
            width: 30px;
            height: 30px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 2px;
            transition: all 0.2s;
        }
        
        .modal-close-x:hover {
            background: #003300;
            color: #00ff00;
            box-shadow: 0 0 10px rgba(0, 255, 0, 0.5);
        }
        
        .modal-instructions {
            display: flex;
            flex-direction: column;
            gap: 12px;
            overflow-y: auto;
            overflow-x: hidden;
            flex: 1;
            padding: 16px;
            padding-right: 4px;
            border: 1px solid #00ff00;
        }
        
        .modal-instructions::-webkit-scrollbar {
            width: 8px;
        }
        
        .modal-instructions::-webkit-scrollbar-track {
            background: #001100;
            border-radius: 2px;
        }
        
        .modal-instructions::-webkit-scrollbar-thumb {
            background: #00ff00;
            border-radius: 2px;
        }
        
        .modal-instructions::-webkit-scrollbar-thumb:hover {
            background: #00cc00;
        }
        
        .modal-instruction-step {
            background: #001100;
            border: 1px solid #00ff00;
            padding: 12px 15px;
            border-radius: 2px;
            color: #00ff00;
            font-size: 11px;
            line-height: 1.5;
        }
        
        .modal-close-btn {
            background: #00ff00;
            color: #000000;
            border: none;
            padding: 10px 30px;
            border-radius: 2px;
            cursor: pointer;
            font-weight: bold;
            font-size: 12px;
            font-family: 'Source Sans Pro', sans-serif;
            display: block;
            margin: 0 auto;
            transition: all 0.2s;
        }
        
        .modal-close-btn:hover {
            background: #00cc00;
            box-shadow: 0 0 15px rgba(0, 255, 0, 0.8);
        }
        
        .builder-images-container {
            display: flex;
            gap: 8px;
            margin: 20px 0;
            width: 100%;
            max-width: 100%;
        }
        
        .builder-images-container.hidden {
            display: none;
        }
        
        .builder-images-container .image-wrapper {
            flex: 0 0 50%;
            width: 50%;
            min-width: 0;
            max-width: 50%;
        }
        
        .builder-current-selection {
            padding: 8px;
            border: none;
            box-shadow: none;
            margin-top: 10px;
        }
        
        /* Sticky behavior on desktop */
        @media (min-width: 768px) {
            .builder-current-selection {
                position: -webkit-sticky; /* Safari */
                position: sticky;
                top: 0;
                z-index: 100;
                background: #000;
                transition: all 0.3s;
            }
            
            .builder-current-selection.sticky {
                border-bottom: 1px solid #00ff00;
                box-shadow: 0 2px 10px rgba(0, 255, 0, 0.3);
            }

            .builder-images-display.sticky {
                position: sticky;
                top: 0;
                z-index: 10;
                background: #000;
                padding-top: 10px;
                padding-bottom: 10px;
            }

        }
        
        .builder-current-selection.hidden {
            display: none;
        }

        /* Panel Resizer — draggable vertical splitter between sections */
        .panel-resizer {
            flex: 0 0 6px;
            cursor: col-resize;
            background: rgba(255, 255, 255, 0.04);
            position: relative;
            transition: background 0.15s;
            display: none; /* shown dynamically by updateResizerVisibility() */
        }
        .panel-resizer::after {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 2px;
            height: 48px;
            background: rgba(4, 217, 255, 0.25);
            border-radius: 1px;
            transition: background 0.15s;
        }
        .panel-resizer:hover,
        .panel-resizer.resizing {
            background: rgba(4, 217, 255, 0.12);
        }
        .panel-resizer:hover::after,
        .panel-resizer.resizing::after {
            background: rgba(4, 217, 255, 0.8);
        }

        /* Toast Notification */
        .toast-notification {
            position: fixed;
            bottom: 20px;
            left: 50%;
            transform: translateX(-50%) translateY(100px);
            background: #001100;
            border: 1px solid #00ff00;
            border-radius: 2px;
            padding: 8px 16px;
            color: #00ff00;
            font-size: 11px;
            font-family: 'Source Sans Pro', sans-serif;
            box-shadow: 0 0 15px rgba(0, 255, 0, 0.4);
            z-index: 1000;
            opacity: 0;
            transition: all 0.3s ease;
            pointer-events: none;
        }
        
        .toast-notification.show {
            transform: translateX(-50%) translateY(0);
            opacity: 1;
        }
        
        /* ── Feedback Modal ─────────────────────────────────────────────────── */
        .feedback-tabs {
            display: flex;
            gap: 2px;
            padding: 8px 4px 4px;
            border-bottom: 1px solid #333;
        }

        .feedback-tab {
            background: #000;
            color: #666;
            border: 1px solid #444;
            padding: 4px 10px;
            font-size: 9px;
            font-weight: 600;
            font-family: 'Source Sans Pro', sans-serif;
            text-transform: uppercase;
            cursor: pointer;
            border-radius: 2px;
            transition: all 0.2s;
        }

        .feedback-tab:hover {
            color: #ffcc00;
            border-color: #ffcc00;
        }

        .feedback-tab-active {
            background: #221800;
            color: #ffcc00;
            border-color: #ffcc00;
        }

        .feedback-panel {
            padding: 8px 4px;
        }

        .star-rating {
            display: inline-flex;
            gap: 4px;
        }

        .star {
            background: none;
            border: none;
            font-size: 28px;
            color: #333;
            cursor: pointer;
            padding: 0 2px;
            transition: color 0.15s, text-shadow 0.15s;
            line-height: 1;
        }

        .star.lit {
            color: #ffcc00;
            text-shadow: 0 0 8px rgba(255, 204, 0, 0.7);
        }

        .star-label {
            color: #555;
            font-size: 10px;
            margin-top: 6px;
            height: 14px;
            font-family: 'Source Sans Pro', sans-serif;
        }

        .feedback-textarea {
            width: 100%;
            background: #0a0a0a;
            border: 1px solid #333;
            border-radius: 2px;
            color: #cccccc;
            font-size: 11px;
            font-family: 'Source Sans Pro', sans-serif;
            padding: 8px;
            resize: vertical;
            box-sizing: border-box;
            outline: none;
            transition: border-color 0.2s;
        }

        .feedback-textarea:focus {
            border-color: #ffcc00;
        }

        .feedback-textarea::placeholder {
            color: #444;
        }

        /* Group Drag Handle */
        .group-drag-handle {
            cursor: grab;
            padding: 4px 8px;
            color: #04d9ff;
            font-size: 16px;
            user-select: none;
            display: flex;
            align-items: center;
        }

        .group-drag-handle:active {
            cursor: grabbing;
        }

        .group-drag-handle:hover {
            color: #04d9ff;
            text-shadow: 0 0 5px #04d9ff;
        }

        .frame-code-block.dragging {
            opacity: 0.5;
            border: 2px dashed #04d9ff;
        }

        .frame-code-block.drag-over {
            border-top: 3px solid #04d9ff;
        }
        
        .add-group-btn {
            background: #04d9ff;
            color: #000000;
            border: none;
            padding: 4px 20px;
            border-radius: 2px;
            cursor: pointer;
            font-weight: 600;
            font-size: 11px;
            font-family: 'Source Sans Pro', sans-serif;
            box-shadow: 0 0 10px rgba(4, 217, 255, 0.5);
            transition: all 0.2s;
        }

        .add-group-btn:hover {
            background: #03b3d9;
            box-shadow: 0 0 15px rgba(4, 217, 255, 0.8);
            transform: scale(1.05);
        }

        .add-group-btn:disabled {
            background: #003344;
            color: #046688;
            cursor: not-allowed;
            box-shadow: none;
        }
        
        .builder-groups-section {
            background: #000000;
            border: 1px solid #04d9ff;
            border-radius: 2px;
            padding: 15px;
            margin: 20px 0;
            box-shadow: 0 0 15px rgba(4, 217, 255, 0.3);
        }

        .builder-groups-section.hidden {
            display: none;
        }

        .builder-groups-list {
            margin-top: 15px;
            display: flex;
            flex-direction: row;
            flex-wrap: wrap;
            gap: 0;
        }

        .builder-group-item {
            background: #001122;
            border: 1px solid #04d9ff;
            border-radius: 2px;
            padding: 6px 10px;
            display: inline-flex;
            justify-content: space-between;
            align-items: center;
            transition: all 0.2s;
            margin: 4px;
        }

        .builder-group-item:hover {
            background: #002244;
            box-shadow: 0 0 10px rgba(4, 217, 255, 0.4);
        }
        
        .builder-group-info {
            display: flex;
            flex-direction: row;
            align-items: center;
            gap: 8px;
        }
        
        
        .builder-group-name {
            color: #04d9ff;
            font-weight: bold;
            font-size: 12px;
            font-family: 'Source Sans Pro', sans-serif;
        }

        .builder-group-details {
            color: #0099cc;
            font-size: 10px;
            font-family: 'Source Sans Pro', sans-serif;
        }

        .builder-group-actions {
            display: flex;
            gap: 8px;
        }

        .builder-group-btn {
            background: #000000;
            color: #04d9ff;
            border: 1px solid #04d9ff;
            padding: 4px 10px;
            border-radius: 2px;
            cursor: pointer;
            font-size: 10px;
            font-family: 'Source Sans Pro', sans-serif;
            transition: all 0.2s;
        }

        .builder-group-btn:hover {
            background: #04d9ff;
            color: #000000;
        }
        
        .builder-group-btn.delete {
            border-color: #ff0066;
            color: #ff0066;
        }
        
        .builder-group-btn.delete:hover {
            background: #ff0066;
            color: #000000;
        }
        
        .builder-output-section {
            margin-top: 20px;
        }
        
        .builder-output-section.hidden {
            display: none;
        }
        
        .instructions {
            display: flex;
            flex-direction: column;
            gap: 3px;
        }
        
        .instruction-step {
            font-size: 9px;
            color: #004400;
            text-shadow: none;
            transition: all 0.2s;
            cursor: default;
        }
        
        .instruction-step:hover {
            color: #00ff00;
            text-shadow: 0 0 8px #00ff00;
        }
        
        .separator {
            width: 100%;
            max-width: 1400px;
            height: 1px;
            background: linear-gradient(to right, transparent, #002200, transparent);
            margin-bottom: 15px;
        }
        
        .grid-container {
            display: inline-block;
            border: 1px solid #00ff00;
            background: #0a0a0a;
            padding: 8px;
            box-shadow: 0 0 20px rgba(0, 255, 0, 0.3);
            max-width: 600px;
            width: 100%;
        }
        
        .grid {
            display: grid;
            grid-template-columns: repeat(20, 1fr);
            grid-template-rows: repeat(18, 1fr);
            gap: 1px;
            background: #001100;
            aspect-ratio: 20 / 18;
            width: 100%;
        }
        
        .cell {
            background: #0a1a0a;
            border: 1px solid #003300;
            cursor: crosshair;
            transition: all 0.1s ease;
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 10px;
            color: transparent;
        }
        
        .cell:hover {
            background: #00ff00;
            border-color: #00ff00;
            transform: scale(1.1);
            z-index: 10;
            box-shadow: 0 0 8px rgba(0, 255, 0, 0.8);
        }
        
        .tooltip {
            position: fixed;
            background: rgba(0, 0, 0, 0.95);
            color: #00ff00;
            padding: 8px 12px;
            border-radius: 2px;
            border: 1px solid #00ff00;
            pointer-events: none;
            z-index: 1000;
            font-size: 11px;
            font-weight: bold;
            display: none;
            box-shadow: 0 0 15px rgba(0, 255, 0, 0.5);
            line-height: 1.4;
        }
        
        .tooltip.show {
            display: block;
        }
        
        .legend {
            margin-top: 15px;
            text-align: center;
            color: #00cc00;
            font-size: 10px;
        }
        
        .legend-item {
            margin: 3px 0;
        }
        
        .highlight {
            color: #ffff00;
            font-weight: bold;
            text-shadow: 0 0 5px #ffff00;
        }
        
        /* Image Switcher Styles */
        .upload-section {
            display: flex;
            gap: 12px;
            padding: 0;
            background: transparent;
            border: none;
            border-radius: 0;
            margin: 0;
            flex-wrap: wrap;
            justify-content: center;
            box-shadow: none;
            width: 100%;
        }
        
        .section-divider {
            width: 100%;
            max-width: 1400px;
            height: 1px;
            background: linear-gradient(to right, transparent, #00ff00, transparent);
            border: none;
            margin: 0;
        }
        
        .upload-box {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 5px;
            padding: 0;
            border: none;
            border-radius: 4px;
        }

        .upload-controls {
            display: flex;
            align-items: center;
            gap: 2px;
        }
        
        .upload-label {
            color: #00ff00;
            font-weight: bold;
            font-size: 12px;
            text-shadow: 0 0 5px #00ff00;
        }
        
        input[type="file"] {
            display: none;
        }
        
        .file-button {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 6px 16px;
            background: #00ff00;
            color: #000000;
            border: none;
            border-radius: 2px;
            cursor: pointer;
            font-weight: 600;
            font-family: 'Source Sans Pro', sans-serif;
            font-size: 11px;
            line-height: 1;
            height: 28px;
            box-shadow: 0 0 10px rgba(0, 255, 0, 0.5);
            transition: all 0.2s;
        }
        
        .file-button:hover {
            background: #00cc00;
            box-shadow: 0 0 15px rgba(0, 255, 0, 0.8);
        }
        
        .unload-btn {
            background: #000000;
            color: #ff0066;
            border: 2px solid #ff0066;
            padding: 0;
            border-radius: 50%;
            cursor: pointer;
            font-weight: bold;
            font-family: 'Source Sans Pro', sans-serif;
            font-size: 16px;
            line-height: 1;
            box-shadow: 0 0 15px rgba(255, 0, 102, 0.5);
            width: 28px;
            height: 28px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            transition: all 0.2s ease;
        }

        .unload-btn:hover {
            background: #1a0000;
            color: #ff3388;
            border-color: #ff3388;
            box-shadow: 0 0 25px rgba(255, 0, 102, 0.9);
            transform: scale(1.08);
        }

        .reload-btn {
            background: #00ff00;
            color: #000000;
            border: 2px solid #00ff00;
            padding: 6px;
            border-radius: 2px;
            cursor: pointer;
            font-weight: bold;
            font-family: 'Source Sans Pro', sans-serif;
            font-size: 11px;
            line-height: 1;
            min-width: 28px;
            height: 28px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            transition: all 0.2s ease;
        }

        .reload-btn:hover {
            background: #00ff00;
            color: #000000;
            border-color: #00ff00;
            box-shadow: 0 0 25px rgba(0, 255, 0, 0.9);
            transform: scale(1.08);
        }

        .images-container {
            display: flex;
            gap: 15px;
            width: 100%;
            align-items: flex-start;
            justify-content: center;
        }
        
        .images-container.hidden {
            display: none;
        }
        
        .images-container.single-image {
            justify-content: center;
        }
        
        .image-wrapper {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
            flex: 1;
            min-width: 0;
        }
        
        .image-wrapper.single-mode {
            flex: none;
            width: 70%;
            max-width: 1200px;
        }
        
        .image-wrapper.hidden {
            display: none;
        }
        
        .image-wrapper.empty {
            display: none;
        }
        
        .image-title {
            color: #00ff00;
            font-weight: bold;
            font-size: 12px;
            text-shadow: 0 0 8px #00ff00;
        }
        
        .image-title .tile-count {
            color: #00cc00;
            font-weight: normal;
            font-size: 10px;
            margin-left: 8px;
        }
        
        .canvas-container {
            position: relative;
            border: 1px solid #00ff00;
            background: #000000;
            box-shadow: 0 0 20px rgba(0, 255, 0, 0.4);
            width: 100%;
            overflow: hidden;
        }
        
        .image-wrapper.fit-content-wrapper {
            width: fit-content;
            max-width: 100%;
        }
        
        canvas {
            display: block;
            image-rendering: pixelated;
            image-rendering: crisp-edges;
            width: 100%;
            height: auto;
        }
        
        .pixel-overlay {
            position: absolute;
            top: 0;
            left: 0;
            pointer-events: none;
        }
        
        .pixel-grid {
            position: absolute;
            box-sizing: border-box;
            border: 2px solid rgba(0, 255, 255, 0.9);
            background: rgba(0, 255, 255, 0.2);
            pointer-events: none;
            display: none;
            transition: all 0.05s ease;
        }
        
        .pixel-grid.active {
            display: block;
        }
        
        .pixel-grid.selected {
            display: block;
            border: 2px solid rgba(0, 255, 0, 0.9);
            background: rgba(0, 255, 0, 0.25);
            z-index: 5;
            box-shadow: 0 0 8px rgba(0, 255, 0, 0.6);
        }
        
        .box-number-overlay {
            position: absolute;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #ffff00;
            font-weight: bold;
            font-size: 10px;
            text-shadow: 
                -1px -1px 0 #000,
                1px -1px 0 #000,
                -1px 1px 0 #000,
                1px 1px 0 #000,
                0 0 3px #000;
            pointer-events: none;
            z-index: 6;
        }
        
        .pixel-grid.hover-highlight {
            display: block;
            border: 3px solid rgba(255, 0, 255, 0.9);
            background: rgba(255, 0, 255, 0.3);
            z-index: 15;
            box-shadow: 0 0 10px rgba(255, 0, 255, 0.8);
        }
        
        .tileset-tile-highlight {
            position: absolute;
            box-sizing: border-box;
            border: 3px solid rgba(255, 0, 255, 0.9);
            background: rgba(255, 0, 255, 0.3);
            pointer-events: none;
            display: none;
            z-index: 20;
            box-shadow: 0 0 12px rgba(255, 0, 255, 0.8);
        }
        
        .tileset-tile-highlight.active {
            display: block;
        }
        
        .drag-preview {
            position: absolute;
            box-sizing: border-box;
            border: 4px dashed rgba(255, 255, 0, 1);
            background: rgba(255, 255, 0, 0.2);
            pointer-events: none;
            display: none;
            z-index: 10;
            box-shadow: 0 0 20px rgba(255, 255, 0, 0.9), inset 0 0 20px rgba(255, 255, 0, 0.3);
        }
        
        .drag-preview.active {
            display: block;
        }
        
        .tileset-section {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 10px;
            width: 100%;
            margin-top: 15px;
            padding: 12px;
            background: #0a0a0a;
            border: 1px solid #00ff00;
            border-radius: 2px;
            box-shadow: 0 0 15px rgba(0, 255, 0, 0.3);
        }
        
        .tileset-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            width: 100%;
        }
        
        .tileset-title {
            color: #00ff00;
            font-weight: bold;
            font-size: 14px;
            text-shadow: 0 0 8px #00ff00;
        }
        
        .tileset-actions {
            display: flex;
            gap: 10px;
            align-items: center;
        }
        
        .download-btn {
            background: #0099ff;
            color: #000000;
            border: none;
            padding: 8px 16px;
            border-radius: 2px;
            cursor: pointer;
            font-weight: bold;
            font-family: 'Source Sans Pro', sans-serif;
            font-size: 11px;
            box-shadow: 0 0 10px rgba(0, 153, 255, 0.5);
        }
        
        .download-btn:hover {
            background: #00ccff;
            box-shadow: 0 0 15px rgba(0, 153, 255, 0.8);
        }
        
        .download-btn:active {
            background: #0066cc;
        }
        
        .download-btn:disabled {
            background: #333333;
            cursor: not-allowed;
            opacity: 0.4;
            box-shadow: none;
        }
        
        .tileset-canvas-container {
            background: #000000;
            box-shadow: 0 0 20px rgba(0, 255, 0, 0.4);
            max-width: 100%;
            overflow: auto;
            position: relative;
        }
        
        .tileset-canvas-container.hidden {
            display: none;
        }
        
        .gbvm-section.hidden {
            display: none;
        }
        
        #tilesetCanvas {
            display: block;
            image-rendering: pixelated;
            image-rendering: crisp-edges;
            background: repeating-conic-gradient(#0a0a0a 0% 25%, #000000 0% 50%) 50% / 16px 16px;
            width: 80%;
            height: auto;
            min-width: 320px;
        }
        
        .selection-toolbar {
            display: flex;
            flex-direction: column;
            gap: 8px;
            padding: 12px;
            background: #0a0a0a;
            border: 1px solid #00ff00;
            border-radius: 2px;
            margin-top: 15px;
            box-shadow: 0 0 15px rgba(0, 255, 0, 0.3);
            width: 100%;
        }
        
        .combined-section {
            display: flex;
            flex-direction: column;
            gap: 12px;
            padding: 12px;
            background: #0a0a0a;
            border: 1px solid #00ff00;
            border-radius: 2px;
            margin-top: 15px;
            box-shadow: 0 0 15px rgba(0, 255, 0, 0.3);
            width: 100%;
        }
        
        .combined-section.hidden {
            display: none;
        }
        
        .tileset-subsection {
            display: flex;
            flex-direction: column;
            gap: 10px;
            padding: 10px;
            background: #000000;
            border-radius: 2px;
        }
        
        .radio-label {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            color: #00ff00;
            font-size: 10px;
            cursor: pointer;
            margin-right: 8px;
        }
        
        .radio-label input[type="radio"] {
            cursor: pointer;
            accent-color: #00ff00;
        }
        
        .radio-label span {
            user-select: none;
        }
        
        .checkbox-label {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            color: #00ff00;
            font-size: 10px;
            cursor: pointer;
            margin-left: 10px;
        }
        
        .checkbox-label input[type="checkbox"] {
            cursor: pointer;
            accent-color: #00ff00;
        }
        
        .checkbox-label span {
            user-select: none;
        }
        
        .selection-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .selection-title {
            color: #00ff00;
            font-weight: bold;
            font-size: 12px;
            text-shadow: 0 0 5px #00ff00;
        }
        
        .clear-btn, .clear-all-btn {
            background: #000000;
            color: #ff0066;
            border: 2px solid #ff0066;
            padding: 5px 24px;
            border-radius: 2px;
            cursor: pointer;
            font-weight: 600;
            font-family: 'Source Sans Pro', sans-serif;
            font-size: 13px;
            box-shadow: 0 0 15px rgba(255, 0, 102, 0.5);
            transition: all 0.2s ease;
        }
        
        .clear-btn:hover, .clear-all-btn:hover {
            background: #1a0000;
            color: #ff3388;
            border-color: #ff3388;
            box-shadow: 0 0 25px rgba(255, 0, 102, 0.9);
            transform: scale(1.08);
        }
        
        .selection-list {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            max-height: 120px;
            overflow-y: auto;
            padding: 4px;
        }
        
        .selection-item {
            background: #000000;
            border: 1px solid #00ff00;
            color: #00ff00;
            padding: 3px 6px;
            border-radius: 2px;
            font-size: 10px;
            white-space: nowrap;
            cursor: pointer;
            transition: all 0.2s;
            box-shadow: 0 0 5px rgba(0, 255, 0, 0.3);
        }
        
        .selection-item:hover {
            background: #00ff00;
            color: #000000;
            transform: scale(1.05);
            box-shadow: 0 0 15px rgba(0, 255, 0, 0.8);
        }
        
        .gbvm-section {
            display: flex;
            flex-direction: column;
            gap: 8px;
            padding: 12px;
            background: #000000;
            border-radius: 2px;
            margin-top: 10px;
        }
        
        .gbvm-header {
            display: flex;
            gap: 12px;
            align-items: center;
            flex-wrap: wrap;
        }
        
        .gbvm-input-group {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        
        .gbvm-label {
            color: #00ff00;
            font-weight: bold;
            font-size: 11px;
            text-shadow: 0 0 5px #00ff00;
        }
        
        .gbvm-input {
            background: #000000;
            border: 1px solid #0099ff;
            color: #00ff00;
            padding: 5px 8px;
            border-radius: 2px;
            font-family: 'Source Sans Pro', sans-serif;
            font-size: 10px;
            min-width: 200px;
        }
        
        .gbvm-input:focus {
            outline: none;
            border-color: #00ccff;
            box-shadow: 0 0 10px rgba(0, 153, 255, 0.5);
        }
        
        .gbvm-code {
            background: #000000;
            border: 1px solid #00ff00;
            border-radius: 2px;
            padding: 10px;
            font-family: 'Source Sans Pro', sans-serif;
            font-size: 10px;
            color: #00ff00;
            max-height: 250px;
            overflow-y: auto;
            white-space: pre;
            line-height: 1.4;
            box-shadow: 0 0 10px rgba(0, 255, 0, 0.3);
        }
        
        .gbvm-code:empty::before {
            content: '// No boxes selected - select boxes on the images above to generate code';
            color: #006600;
        }
        
        .frame-code-block {
            margin-bottom: 15px;
            border: 1px solid #04d9ff;
            border-radius: 2px;
            overflow: hidden;
            box-shadow: 0 0 10px rgba(4, 217, 255, 0.3);
        }

        .frame-code-header {
            background: #001122;
            padding: 8px 12px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-bottom: 1px solid #04d9ff;
        }

        .frame-code-label {
            color: #04d9ff;
            font-weight: bold;
            font-size: 12px;
            font-family: 'Source Sans Pro', sans-serif;
        }

        .frame-copy-btn {
            background: #000000;
            color: #04d9ff;
            border: 1px solid #04d9ff;
            padding: 4px 12px;
            border-radius: 2px;
            cursor: pointer;
            font-weight: bold;
            font-size: 10px;
            font-family: 'Source Sans Pro', sans-serif;
            transition: all 0.2s;
        }

        .frame-copy-btn:hover {
            background: #04d9ff;
            color: #000000;
            box-shadow: 0 0 10px rgba(4, 217, 255, 0.6);
        }

        .frame-code-content {
            background: #000000;
            color: #04d9ff;
            padding: 12px;
            font-family: 'Source Sans Pro', sans-serif;
            font-size: 10px;
            white-space: pre;
            overflow-x: auto;
            max-height: 200px;
            overflow-y: auto;
            line-height: 1.4;
        }
        
        .copy-code-btn {
            background: #ffff00;
            color: #000000;
            border: none;
            padding: 6px 12px;
            border-radius: 2px;
            cursor: pointer;
            font-weight: bold;
            font-family: 'Source Sans Pro', sans-serif;
            font-size: 10px;
            margin-left: auto;
            box-shadow: 0 0 10px rgba(255, 255, 0, 0.5);
        }
        
        .copy-code-btn:hover {
            background: #ffff66;
            box-shadow: 0 0 15px rgba(255, 255, 0, 0.8);
        }
        
        .copy-code-btn:active {
            background: #cccc00;
        }
        
        .mode-indicator {
            display: inline-block;
            padding: 3px 6px;
            border-radius: 2px;
            font-size: 9px;
            font-weight: bold;
            margin-left: 8px;
        }
        
        .mode-select {
            background: rgba(0, 255, 0, 0.2);
            border: 1px solid #00ff00;
            color: #00ff00;
            text-shadow: 0 0 5px #00ff00;
        }
        
        .mode-deselect {
            background: rgba(255, 0, 102, 0.2);
            border: 1px solid #ff0066;
            color: #ff0066;
            text-shadow: 0 0 5px #ff0066;
        }
        
        /* Scrollbar styling */
        ::-webkit-scrollbar {
            width: 8px;
            height: 8px;
        }
        
        ::-webkit-scrollbar-track {
            background: #000000;
        }
        
        ::-webkit-scrollbar-thumb {
            background: #00ff00;
            border-radius: 2px;
            box-shadow: 0 0 5px rgba(0, 255, 0, 0.5);
        }
        
        ::-webkit-scrollbar-thumb:hover {
            background: #00cc00;
        }
        
        h1 {
            margin-bottom: 10px;
            font-size: 24px;
        }
        
        .info {
            margin-bottom: 20px;
            text-align: center;
            color: #aaa;
            font-size: 14px;
        }
        
        .grid-container {
            display: inline-block;
            border: 2px solid #555;
            background: #1a1a1a;
            padding: 10px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.5);
            max-width: 600px;
            width: 100%;
        }
        
        .grid {
            display: grid;
            grid-template-columns: repeat(20, 1fr);
            grid-template-rows: repeat(18, 1fr);
            gap: 1px;
            background: #333;
            aspect-ratio: 20 / 18;
            width: 100%;
        }
        
        .cell {
            background: #444;
            border: 1px solid #555;
            cursor: crosshair;
            transition: all 0.1s ease;
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 10px;
            color: transparent;
        }
        
        .cell:hover {
            background: #0af;
            border-color: #0cf;
            transform: scale(1.1);
            z-index: 10;
            box-shadow: 0 0 10px rgba(0, 170, 255, 0.8);
        }
        
        .tooltip {
            position: fixed;
            background: rgba(0, 0, 0, 0.95);
            color: #0af;
            padding: 12px 16px;
            border-radius: 2px;
            border: 2px solid #0af;
            pointer-events: none;
            z-index: 1000;
            font-size: 14px;
            font-weight: bold;
            display: none;
            box-shadow: 0 4px 12px rgba(0, 170, 255, 0.4);
            line-height: 1.6;
        }
        
        .tooltip.show {
            display: block;
        }
        
        .legend {
            margin-top: 20px;
            text-align: center;
            color: #aaa;
            font-size: 12px;
        }
        
        .legend-item {
            margin: 5px 0;
        }
        
        .highlight {
            color: #0af;
            font-weight: bold;
        }
        
        /* Image Switcher Styles */
        .upload-section {
            display: flex;
            gap: 15px;
            padding: 0;
            background: transparent;
            border: none;
            border-radius: 0;
            margin-bottom: 20px;
            flex-wrap: wrap;
            justify-content: center;
            box-shadow: none;
            width: 100%;
        }
        
        .upload-box {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        
        .upload-label {
            color: #0af;
            font-weight: bold;
            font-size: 14px;
        }
        
        input[type="file"] {
            padding: 6px 10px;
            background: #1a1a1a;
            border: 2px solid #555;
            border-radius: 2px;
            color: #fff;
            cursor: pointer;
            font-family: 'Source Sans Pro', sans-serif;
            font-size: 12px;
        }
        
        input[type="file"]::file-selector-button {
            background: #0af;
            color: #000;
            border: none;
            padding: 6px 12px;
            border-radius: 2px;
            cursor: pointer;
            font-weight: bold;
            font-family: 'Source Sans Pro', sans-serif;
            font-size: 12px;
        }
        
        .images-container {
            display: flex;
            gap: 20px;
            width: 100%;
            align-items: flex-start;
            justify-content: center;
        }
        
        .images-container.single-image {
            justify-content: center;
        }
        
        .image-wrapper {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 10px;
            flex: 1;
            min-width: 0;
        }
        
        .image-wrapper.single-mode {
            flex: none;
            width: 70%;
            max-width: 1200px;
        }
        
        .image-wrapper.hidden {
            display: none;
        }
        
        .image-title {
            color: #0af;
            font-weight: bold;
            font-size: 14px;
        }
        
        .tileset-section {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 15px;
            width: 100%;
            margin-top: 30px;
            padding: 20px;
            background: #1a1a1a;
            border: 2px solid #555;
            border-radius: 2px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.3);
        }
        
        .tileset-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            width: 100%;
        }
        
        .tileset-title {
            color: #0af;
            font-weight: bold;
            font-size: 18px;
        }
        
        .download-btn {
            background: #0af;
            color: #000;
            border: none;
            padding: 10px 20px;
            border-radius: 2px;
            cursor: pointer;
            font-weight: bold;
            font-family: 'Source Sans Pro', sans-serif;
            font-size: 14px;
        }
        
        .download-btn:hover {
            background: #0cf;
        }
        
        .download-btn:active {
            background: #08d;
        }
        
        .download-btn:disabled {
            background: #555;
            cursor: not-allowed;
            opacity: 0.5;
        }
        
        
        #tilesetCanvas {
            display: block;
            image-rendering: pixelated;
            image-rendering: crisp-edges;
            background: repeating-conic-gradient(#1a1a1a 0% 25%, #0a0a0a 0% 50%) 50% / 16px 16px;
            width: 80%;
            height: auto;
            min-width: 320px;
        }
        
        .canvas-container {
            position: relative;
            border: 2px solid #555;
            background: #1a1a1a;
            box-shadow: 0 4px 20px rgba(0,0,0,0.5);
            width: 100%;
            overflow: hidden;
        }
        
        canvas {
            display: block;
            image-rendering: pixelated;
            image-rendering: crisp-edges;
            width: 100%;
            height: auto;
        }
        
        .pixel-overlay {
            position: absolute;
            top: 0;
            left: 0;
            pointer-events: none;
        }
        
        .pixel-overlay {
            position: absolute;
            top: 5px;
            left: 5px;
            pointer-events: none;
        }
        
        .pixel-grid {
            position: absolute;
            box-sizing: border-box;
            border: 2px solid rgba(0, 170, 255, 0.8);
            background: rgba(0, 170, 255, 0.2);
            pointer-events: none;
            display: none;
            transition: all 0.05s ease;
        }
        
        .pixel-grid.active {
            display: block;
        }
        
        .pixel-grid.selected {
            display: block;
            border: 2px solid rgba(0, 255, 100, 0.9);
            background: rgba(0, 255, 100, 0.3);
            z-index: 5;
        }
        
        .pixel-grid.hover-highlight {
            display: block;
            border: 3px solid rgba(255, 0, 255, 0.9);
            background: rgba(255, 0, 255, 0.4);
            z-index: 15;
        }
        
        .tileset-tile-highlight {
            position: absolute;
            box-sizing: border-box;
            border: 3px solid rgba(255, 0, 255, 0.9);
            background: rgba(255, 0, 255, 0.4);
            pointer-events: none;
            display: none;
            z-index: 20;
        }
        
        .tileset-tile-highlight.active {
            display: block;
        }
        
        .drag-preview {
            position: absolute;
            box-sizing: border-box;
            border: 3px dashed rgba(255, 255, 0, 0.9);
            background: rgba(255, 255, 0, 0.15);
            pointer-events: none;
            display: none;
            z-index: 10;
        }
        
        .drag-preview.active {
            display: block;
        }
        
        .selection-toolbar {
            display: flex;
            flex-direction: column;
            gap: 10px;
            padding: 15px;
            background: #1a1a1a;
            border: 2px solid #555;
            border-radius: 2px;
            margin-top: 20px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.3);
            width: 100%;
        }
        
        .selection-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .selection-title {
            color: #0af;
            font-weight: bold;
            font-size: 14px;
        }
        
        
        .selection-list {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            max-height: 150px;
            overflow-y: auto;
            padding: 5px;
        }
        
        .selection-item {
            background: #2a2a2a;
            border: 1px solid #0af;
            color: #0af;
            padding: 4px 8px;
            border-radius: 2px;
            font-size: 12px;
            white-space: nowrap;
            cursor: pointer;
            transition: all 0.2s;
        }
        
        .selection-item:hover {
            background: #0af;
            color: #000;
            transform: scale(1.05);
            box-shadow: 0 2px 8px rgba(0, 170, 255, 0.5);
        }
        
        .gbvm-section {
            display: flex;
            flex-direction: column;
            gap: 10px;
            padding: 15px;
            background: #0a0a0a;
            border: 2px solid #0af;
            border-radius: 2px;
            margin-top: 15px;
        }
        
        .gbvm-header {
            display: flex;
            gap: 15px;
            align-items: center;
            flex-wrap: wrap;
        }
        
        .gbvm-input-group {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        
        .gbvm-label {
            color: #00ff00;
            font-weight: bold;
            font-size: 13px;
        }
        
        .gbvm-input {
            background: #1a1a1a;
            border: 2px solid #555;
            color: #fff;
            padding: 6px 10px;
            border-radius: 2px;
            font-family: 'Source Sans Pro', sans-serif;
            font-size: 12px;
            min-width: 150px;
        }
        
        .gbvm-input:focus {
            outline: none;
            border-color: #0af;
        }
        
        .gbvm-code {
            background: #000;
            border: 1px solid #333;
            border-radius: 2px;
            padding: 12px;
            font-family: 'Source Sans Pro', sans-serif;
            font-size: 12px;
            color: #0f0;
            max-height: 300px;
            overflow-y: auto;
            white-space: pre;
            line-height: 1.5;
        }
        
        .gbvm-code:empty::before {
            content: '// No boxes selected - select boxes on the images above to generate code';
            color: #555;
        }
        
        .copy-code-btn {
            background: #0af;
            color: #000;
            border: none;
            padding: 8px 16px;
            border-radius: 2px;
            cursor: pointer;
            font-weight: bold;
            font-family: 'Source Sans Pro', sans-serif;
            font-size: 12px;
            margin-left: auto;
        }
        
        .copy-code-btn:hover {
            background: #0cf;
        }
        
        .copy-code-btn:active {
            background: #08d;
        }
        
        .mode-indicator {
            display: inline-block;
            padding: 4px 8px;
            border-radius: 2px;
            font-size: 11px;
            font-weight: bold;
            margin-left: 10px;
        }
        
        .mode-select {
            background: rgba(0, 255, 170, 0.2);
            border: 1px solid rgba(0, 255, 170, 0.8);
            color: #0fa;
        }
        
        .mode-deselect {
            background: rgba(255, 100, 100, 0.2);
            border: 1px solid rgba(255, 100, 100, 0.8);
            color: #f88;
        }
        
        /* Screensaver animations */
        @keyframes colorCycle {
            0% { color: #00ff00; text-shadow: 0 0 20px #00ff00; }
            33% { color: #04d9ff; text-shadow: 0 0 20px #04d9ff; }
            66% { color: #FF13F0; text-shadow: 0 0 20px #FF13F0; }
            100% { color: #00ff00; text-shadow: 0 0 20px #00ff00; }
        }

        @keyframes waveFloat {
            0%, 100% { transform: translateY(0px); }
            50% { transform: translateY(-20px); }
        }
        
        @keyframes moveLine1 {
            0% { transform: translateX(-100%) translateY(0) rotate(15deg); }
            100% { transform: translateX(200%) translateY(30vh) rotate(15deg); }
        }

        @keyframes moveLine2 {
            0% { transform: translateX(100%) translateY(10vh) rotate(-20deg); }
            100% { transform: translateX(-200%) translateY(80vh) rotate(-20deg); }
        }

        @keyframes moveLine3 {
            0% { transform: translateX(-50%) translateY(100vh) rotate(10deg); }
            100% { transform: translateX(150%) translateY(-20vh) rotate(10deg); }
        }

        @keyframes moveLine4 {
            0% { transform: translateX(150%) translateY(50vh) rotate(-15deg); }
            100% { transform: translateX(-150%) translateY(20vh) rotate(-15deg); }
        }

        @keyframes moveLine5 {
            0% { transform: translateX(-120%) translateY(70vh) rotate(25deg); }
            100% { transform: translateX(180%) translateY(10vh) rotate(25deg); }
        }

        @keyframes moveLine6 {
            0% { transform: translateX(80%) translateY(-10vh) rotate(-18deg); }
            100% { transform: translateX(-180%) translateY(90vh) rotate(-18deg); }
        }
        
        /* Neon Blue Theme for Groups Section */
        #groupsSection .tileset-canvas-container,
        #groupsSection .gbvm-header,
        #groupsSection input,
        #groupsSection button:not(.help-btn):not([style*="background: #FF13F0"]):not([style*="background: rgb(255, 19, 240)"]) {
            border-color: #04d9ff;
        }

        #groupsSection .tileset-canvas-container,
        #groupsSection .gbvm-section {
            background: #001122;
        }

        #groupsSection input {
            color: #04d9ff;
        }

        #groupsSection .gbvm-label,
        #groupsSection .radio-label span,
        #groupsSection h3,
        #groupsSection .gbvm-code {
            color: #04d9ff;
        }

        #groupsSection .gbvm-code {
            border-color: #04d9ff;
        }

        /* Fix button readability in Groups - use proper contrasting colors */
        #groupsSection button[style*="background: #04d9ff"],
        #groupsSection button[style*="background: rgb(4, 217, 255)"] {
            background: #04d9ff;
            color: #000;
        }

        #groupsSection button[onclick*="Copy"] {
            background: #000;
            color: #04d9ff;
            border: 1px solid #04d9ff;
        }
        
        /* Work Mode Toggle Buttons */
        .work-mode-label {
            background: #000;
            color: #00ff00;
            border: 1px solid #00ff00;
            padding: 4px 12px;
            font-size: 10px;
            font-weight: 600;
            font-family: 'Source Sans Pro', sans-serif;
            border-radius: 2px;
            cursor: pointer;
            transition: all 0.2s;
            text-transform: uppercase;
        }
        
        .work-mode-label:hover {
            background: rgba(0, 255, 0, 0.1);
        }
        
        .work-mode-label input:checked + span {
            /* Parent label will have filled style */
        }


        /* Preview FPS Slider Styles */
        #previewMsSlider::-webkit-slider-thumb {
            -webkit-appearance: none;
            appearance: none;
            width: 16px;
            height: 16px;
            background: #FF13F0;
            cursor: pointer;
            border-radius: 2px;
            box-shadow: 0 0 10px rgba(255, 19, 240, 0.5);
        }

        #previewMsSlider::-moz-range-thumb {
            width: 16px;
            height: 16px;
            background: #FF13F0;
            cursor: pointer;
            border-radius: 2px;
            border: none;
            box-shadow: 0 0 10px rgba(255, 19, 240, 0.5);
        }