:root {
            --bg-app: #000000;
            --glass-bg: rgba(30, 30, 35, 0.45);
            --glass-border: rgba(255, 255, 255, 0.08);
            --glass-highlight: rgba(255, 255, 255, 0.15);
            --text-main: #ffffff;
            --text-muted: #a1a1aa;
            --brand-color: #38bdf8;
            --brand-hover: #0ea5e9;
            --sidebar-width: 480px;
        }

        * { box-sizing: border-box; margin: 0; padding: 0; font-family: 'Plus Jakarta Sans', sans-serif; -webkit-font-smoothing: antialiased; }
        
        body { 
            background-color: var(--bg-app); 
            background-image: radial-gradient(circle at 15% 50%, rgba(56, 189, 248, 0.12), transparent 40%), 
                              radial-gradient(circle at 85% 20%, rgba(139, 92, 246, 0.12), transparent 40%);
            color: var(--text-main); 
            display: flex; 
            min-height: 100vh; 
            overflow-x: hidden; 
            /* Anti-copy text selection prevention */
            -webkit-user-select: none;
            -moz-user-select: none;
            -ms-user-select: none;
            user-select: none;
        }

        /* Allow inputs to be selectable */
        input, select, textarea {
            -webkit-user-select: text;
            -moz-user-select: text;
            -ms-user-select: text;
            user-select: text;
        }

        .app-container { 
            display: flex; 
            width: 100%; 
            min-height: 100vh; 
            backdrop-filter: blur(60px);
            -webkit-backdrop-filter: blur(60px);
        }
        
        .sidebar {
            width: var(--sidebar-width); 
            background: rgba(15, 15, 18, 0.5);
            backdrop-filter: blur(30px);
            -webkit-backdrop-filter: blur(30px);
            border-right: 1px solid var(--glass-border); 
            padding: 36px 28px;
            display: flex; flex-direction: column; gap: 24px; overflow-y: auto; height: 100vh;
        }
        
        .sidebar::-webkit-scrollbar { width: 6px; }
        .sidebar::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 10px; }

        .main-stage {
            flex: 1; display: flex; flex-direction: column; padding: 40px;
            align-items: center; justify-content: center; 
            background-image: radial-gradient(rgba(255,255,255,0.05) 1px, transparent 1px);
            background-size: 24px 24px; height: 100vh; position: relative;
        }

        .brand-header h1 { font-size: 24px; font-weight: 700; letter-spacing: -0.04em; margin-bottom: 6px; background: linear-gradient(to right, #fff, #a1a1aa); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
        .brand-header p { color: var(--text-muted); font-size: 13px; font-weight: 500; }
        
        .panel-card { 
            background: var(--glass-bg); 
            border: 1px solid var(--glass-border); 
            border-radius: 20px; 
            padding: 22px; 
            box-shadow: 0 10px 30px rgba(0,0,0,0.2), inset 0 1px 0 rgba(255,255,255,0.05);
            transition: transform 0.2s ease, border-color 0.2s ease;
        }
        .panel-card:hover { border-color: rgba(255,255,255,0.15); }
        
        .panel-title { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; color: var(--brand-color); margin-bottom: 18px; display: flex; align-items: center; gap: 8px; }

        .field-group { margin-bottom: 16px; }
        .field-group:last-child { margin-bottom: 0; }
        .field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
        .field-quad { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
        
        label { display: block; font-size: 12px; font-weight: 600; color: var(--text-muted); margin-bottom: 8px; }
        
        input[type="text"], input[type="number"], select {
            width: 100%; background: rgba(0, 0, 0, 0.3); border: 1px solid var(--glass-border);
            border-radius: 12px; padding: 12px 16px; color: var(--text-main); font-size: 13px;
            transition: all 0.2s ease; font-weight: 500;
            box-shadow: inset 0 2px 4px rgba(0,0,0,0.2);
            -webkit-appearance: none;
            appearance: none;
        }
        input[type="text"]:focus, input[type="number"]:focus, select:focus { border-color: var(--brand-color); outline: none; background: rgba(0, 0, 0, 0.5); box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.15); }

        select {
            cursor: pointer;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%23a1a1aa' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 12px center;
            background-size: 16px;
            padding-right: 40px;
        }
        select option { background: #1e1e23; color: #fff; }

        /* Icon Grid Styling */
        .icon-grid {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 8px;
            max-height: 180px;
            overflow-y: auto;
            padding-right: 4px;
            margin-top: 10px;
        }
        .icon-grid::-webkit-scrollbar { width: 4px; }
        .icon-grid::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.2); border-radius: 4px; }
        
        .icon-btn {
            background: rgba(0,0,0,0.3);
            border: 1px solid var(--glass-border);
            border-radius: 8px;
            color: var(--text-main);
            font-size: 16px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.2s ease;
            box-shadow: inset 0 2px 4px rgba(0,0,0,0.2);
        }
        .icon-btn:hover { background: rgba(255,255,255,0.1); border-color: rgba(255,255,255,0.3); }
        .icon-btn.active {
            background: rgba(56, 189, 248, 0.2);
            border-color: var(--brand-color);
            color: #fff;
            box-shadow: 0 0 0 1px var(--brand-color);
        }
        .icon-btn.custom-btn {
            grid-column: span 6;
            font-size: 12px;
            font-weight: 600;
            font-family: 'Plus Jakarta Sans', sans-serif;
            text-transform: uppercase;
            letter-spacing: 0.05em;
        }

        .pixel-stepper { display: flex; align-items: center; background: rgba(0,0,0,0.3); border: 1px solid var(--glass-border); border-radius: 12px; overflow: hidden; box-shadow: inset 0 2px 4px rgba(0,0,0,0.2); }
        .pixel-stepper button {
            background: transparent; border: none; color: var(--text-main); width: 36px; height: 36px;
            font-size: 16px; cursor: pointer; transition: background 0.15s; font-weight: 500;
        }
        .pixel-stepper button:hover { background: rgba(255,255,255,0.1); }
        .pixel-stepper input {
            flex: 1; background: transparent; border: none; text-align: center; color: var(--text-main);
            font-size: 13px; font-weight: 700; font-family: 'JetBrains Mono', monospace; width: 100%; box-shadow: none; padding: 0;
        }

        .custom-file-upload {
            display: block; width: 100%; background: rgba(255, 255, 255, 0.05); border: 1px dashed var(--glass-border);
            border-radius: 12px; padding: 12px 16px; color: var(--text-muted); font-size: 12px; font-weight: 600;
            text-align: center; cursor: pointer; transition: all 0.2s ease;
        }
        .custom-file-upload:hover { border-color: var(--brand-color); color: #fff; background: rgba(255, 255, 255, 0.08); }
        input[type="file"] { display: none; }

        .color-node { background: rgba(0,0,0,0.2); border: 1px solid var(--glass-border); border-radius: 14px; padding: 14px; margin-top: 10px; }
        .color-inline { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; }
        .color-preview-circle { width: 32px; height: 32px; border-radius: 50%; border: 2px solid var(--glass-highlight); position: relative; overflow: hidden; cursor: pointer; box-shadow: 0 2px 8px rgba(0,0,0,0.3); }
        .color-preview-circle input[type="color"] { position: absolute; top: -10px; left: -10px; width: 50px; height: 50px; cursor: pointer; }
        .color-hex-text { flex: 1; background: transparent !important; border: none !important; color: var(--text-main); font-family: 'JetBrains Mono', monospace; font-size: 13px; text-transform: uppercase; box-shadow: none !important; padding: 0 !important; }
        
        .meta-toggle { display: flex; justify-content: space-between; align-items: center; padding: 6px 0; }
        .ios-switch { position: relative; display: inline-block; width: 44px; height: 24px; }
        .ios-switch input { opacity: 0; width: 0; height: 0; }
        .ios-slider { position: absolute; cursor: pointer; top: 0; left: 0; right: 0; bottom: 0; background-color: rgba(255,255,255,0.15); transition: .3s cubic-bezier(0.4, 0, 0.2, 1); border-radius: 24px; border: 1px solid rgba(255,255,255,0.05); }
        .ios-slider:before { position: absolute; content: ""; height: 18px; width: 18px; left: 3px; bottom: 2px; background-color: white; transition: .3s cubic-bezier(0.4, 0, 0.2, 1); border-radius: 50%; box-shadow: 0 2px 4px rgba(0,0,0,0.2); }
        input:checked + .ios-slider { background-color: var(--brand-color); border-color: var(--brand-color); }
        input:checked + .ios-slider:before { transform: translateX(20px); }

        .segment-wrapper { display: flex; background: rgba(0,0,0,0.4); padding: 4px; border-radius: 12px; border: 1px solid var(--glass-border); }
        .segment-wrapper button {
            flex: 1; background: transparent; border: none; color: var(--text-muted); padding: 8px; font-size: 12px;
            font-weight: 600; cursor: pointer; border-radius: 8px; transition: all 0.2s ease;
        }
        .segment-wrapper button.active { background: rgba(255,255,255,0.15); color: #fff; box-shadow: 0 2px 8px rgba(0,0,0,0.2); }

        .corner-blueprint-container {
            display: flex; gap: 24px; align-items: center; background: rgba(0,0,0,0.2);
            border: 1px solid var(--glass-border); border-radius: 16px; padding: 20px; margin-top: 16px;
        }
        .visual-blueprint-box {
            width: 76px; height: 76px; background: rgba(255,255,255,0.03);
            border: 2px solid var(--brand-color); flex-shrink: 0;
            transition: border-radius 0.2s ease; position: relative;
            box-shadow: inset 0 0 15px rgba(56, 189, 248, 0.15), 0 10px 25px rgba(0,0,0,0.3);
            backdrop-filter: blur(5px);
        }
        .visual-blueprint-box::before, .visual-blueprint-box::after {
            content: ''; position: absolute; background: rgba(255,255,255,0.05);
        }
        .visual-blueprint-box::before { top: 0; left: 50%; width: 1px; height: 100%; }
        .visual-blueprint-box::after { top: 50%; left: 0; width: 100%; height: 1px; }

        .blueprint-controls-side { flex: 1; display: flex; flex-direction: column; gap: 14px; }
        .blueprint-row { display: flex; gap: 12px; }
        .blueprint-input-node {
            flex: 1; display: flex; flex-direction: column; gap: 6px;
        }
        .blueprint-input-node label { font-size: 10px; text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-muted); margin-bottom: 0; }

        .preview-viewport-window {
            background: rgba(20, 20, 25, 0.4); 
            backdrop-filter: blur(40px);
            -webkit-backdrop-filter: blur(40px);
            border: 1px solid rgba(255, 255, 255, 0.1); 
            border-radius: 32px;
            width: 100%; max-width: 800px; height: 460px; display: flex; flex-direction: column;
            align-items: center; justify-content: center; position: relative; 
            box-shadow: 0 40px 100px rgba(0,0,0,0.6), inset 0 1px 2px rgba(255,255,255,0.15);
        }
        .viewport-title-tag { position: absolute; top: 28px; font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.2em; color: rgba(255,255,255,0.4); }
        
        .canvas-isolation-zone {
            padding: 30px; position: relative; display: flex; justify-content: center; align-items: center;
        }
        
        #corePixelCanvas {
            display: block;
            image-rendering: -moz-crisp-edges;
            image-rendering: -webkit-crisp-edges;
            image-rendering: pixelated;
            image-rendering: crisp-edges;
            box-shadow: 0 25px 60px rgba(0,0,0,0.5);
            outline: 1px solid rgba(255,255,255,0.15);
            transform-origin: center center;
            border-radius: 2px;
        }

        .scale-hud { display: flex; align-items: center; gap: 16px; margin-top: 28px; background: rgba(0, 0, 0, 0.4); backdrop-filter: blur(20px); padding: 10px 20px; border-radius: 40px; border: 1px solid rgba(255,255,255,0.1); box-shadow: 0 10px 20px rgba(0,0,0,0.2); }
        .scale-hud button { background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1); color: white; cursor: pointer; font-size: 16px; width: 30px; height: 30px; border-radius: 50%; display: flex; align-items: center; justify-content: center; transition: all 0.2s; }
        .scale-hud button:hover { background: rgba(255,255,255,0.15); }
        #scaleIndicator { font-size: 13px; font-weight: 700; font-family: 'JetBrains Mono', monospace; color: #fff; min-width: 34px; text-align: center; }

        .meta-dashboard-row {
            display: flex; gap: 32px; margin-top: 24px; background: rgba(20, 20, 25, 0.4); backdrop-filter: blur(40px);
            border: 1px solid rgba(255,255,255,0.1); border-radius: 20px; padding: 18px 40px; justify-content: center; width: 100%; max-width: 800px;
            box-shadow: 0 20px 40px rgba(0,0,0,0.3);
        }
        .meta-metric-item { text-align: center; }
        .metric-value { font-family: 'JetBrains Mono', monospace; font-weight: 700; color: #fff; font-size: 16px; }
        .metric-label { color: rgba(255,255,255,0.5); font-size: 10px; text-transform: uppercase; letter-spacing: 0.1em; margin-top: 4px; }

        .button-cluster { width: 100%; max-width: 800px; display: grid; grid-template-columns: 2fr 1fr; gap: 16px; margin-top: 20px; }
        .action-btn-main { background: linear-gradient(135deg, var(--brand-color), #2563eb); color: #fff; border: none; border-radius: 16px; padding: 18px; font-weight: 700; font-size: 14px; cursor: pointer; transition: all 0.2s; display: flex; justify-content: center; align-items: center; gap: 10px; box-shadow: 0 10px 25px rgba(56, 189, 248, 0.3); text-shadow: 0 1px 2px rgba(0,0,0,0.2); }
        .action-btn-main:hover { transform: translateY(-2px); box-shadow: 0 15px 30px rgba(56, 189, 248, 0.4); }
        .action-btn-sub { background: rgba(255,255,255,0.05); backdrop-filter: blur(20px); border: 1px solid rgba(255,255,255,0.15); color: #fff; border-radius: 16px; padding: 18px; font-weight: 600; font-size: 14px; cursor: pointer; transition: all 0.2s; text-align: center; }
        .action-btn-sub:hover { background: rgba(255,255,255,0.1); border-color: rgba(255,255,255,0.25); transform: translateY(-2px); }
        
        .role-badge-selector { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 14px; }
        .role-chip { background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1); padding: 8px 14px; border-radius: 20px; font-size: 11px; font-weight: 700; color: rgba(255,255,255,0.7); cursor: pointer; transition: all 0.2s; letter-spacing: 0.05em; }
        .role-chip:hover { border-color: rgba(255,255,255,0.3); color: #fff; background: rgba(255,255,255,0.1); transform: translateY(-1px); }