:root{--ntg-primary:var(--main-primary);--ntg-primary-hover:var(--main-primary-hover);--ntg-text:#1e293b;--ntg-text-muted:#64748b;--ntg-bg:#fff;--ntg-bg-hover:#f8fafc;--ntg-border:#e2e8f0;--ntg-border-hover:#cbd5e1;--ntg-radius:var(--main-radius);--ntg-radius-lg:var(--main-radius-lg);--ntg-shadow:0 1px 3px #0000001a;--ntg-shadow-lg:0 4px 12px #0000001a;--ntg-checkerboard:repeating-conic-gradient(#e5e7eb 0% 25%, transparent 0% 50%) 50% / 16px 16px}._ntg-container{gap:var(--main-space-6);flex-direction:column;width:100%;max-width:1200px;margin:0 auto;display:flex}._ntg-layout{gap:var(--main-space-6);grid-template-columns:320px 1fr;align-items:start;display:grid}@media (max-width:900px){._ntg-layout{grid-template-columns:1fr}._ntg-settings{order:2}._ntg-preview-area{order:1}}@media (max-width:768px){._ntg-container{padding-left:1rem;padding-right:1rem}}._ntg-settings{gap:var(--main-space-4);flex-direction:column;display:flex}._ntg-section{background:var(--ntg-bg);border-radius:var(--ntg-radius-lg);padding:var(--main-space-5);border-style:solid;border-width:1px;border-color:var(--ntg-border);box-shadow:var(--ntg-shadow)}._ntg-section-title{align-items:center;gap:var(--main-space-2);font-size:var(--main-text-sm);color:var(--ntg-text);margin-bottom:var(--main-space-4);font-weight:600;display:flex}._ntg-section-title svg{color:var(--ntg-text-muted)}._ntg-type-grid{gap:var(--main-space-2);grid-template-columns:repeat(3,1fr);display:grid}._ntg-type-btn{padding:var(--main-space-2) var(--main-space-3);background:var(--ntg-bg-hover);border-style:solid;border-width:1px;border-color:var(--ntg-border);border-radius:var(--ntg-radius);font-size:var(--main-text-xs);color:var(--ntg-text-muted);cursor:pointer;font-weight:500;transition:all .15s}._ntg-type-btn:hover{border-color:var(--ntg-primary);color:var(--ntg-primary)}._ntg-type-btn.active{background:var(--ntg-primary);border-color:var(--ntg-primary);color:#fff}._ntg-preset-grid{gap:var(--main-space-2);grid-template-columns:repeat(2,1fr);display:grid}._ntg-preset-btn{padding:var(--main-space-2) var(--main-space-3);background:var(--ntg-bg-hover);border-style:solid;border-width:1px;border-color:var(--ntg-border);border-radius:var(--ntg-radius);font-size:var(--main-text-xs);color:var(--ntg-text-muted);cursor:pointer;font-weight:500;transition:all .15s}._ntg-preset-btn:hover{border-color:var(--ntg-primary);color:var(--ntg-primary)}._ntg-preset-btn.active{background:var(--ntg-primary);border-color:var(--ntg-primary);color:#fff}._ntg-param-row{justify-content:space-between;align-items:center;gap:var(--main-space-3);margin-bottom:var(--main-space-3);display:flex}._ntg-param-row:last-child{margin-bottom:0}._ntg-label{font-size:var(--main-text-xs);color:var(--ntg-text-muted);white-space:nowrap;min-width:70px;font-weight:500}._ntg-slider-group{align-items:center;gap:var(--main-space-3);flex:1;max-width:200px;display:flex}._ntg-slider{-webkit-appearance:none;appearance:none;background:var(--ntg-border);border-radius:3px;outline:none;flex:1;height:6px}._ntg-slider::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;background:var(--ntg-primary);cursor:pointer;border-radius:50%;width:18px;height:18px;box-shadow:0 2px 4px #6366f14d}._ntg-slider::-moz-range-thumb{background:var(--ntg-primary);cursor:pointer;border:none;border-radius:50%;width:18px;height:18px;box-shadow:0 2px 4px #6366f14d}._ntg-slider-val{min-width:40px;font-size:var(--main-text-xs);color:var(--ntg-primary);text-align:right;font-weight:600}._ntg-input{width:80px;padding:var(--main-space-2) var(--main-space-3);background:var(--ntg-bg);border-style:solid;border-width:1px;border-color:var(--ntg-border);border-radius:var(--ntg-radius);font-size:var(--main-text-sm);color:var(--ntg-text);transition:border-color .15s}._ntg-input:focus{border-color:var(--ntg-primary);outline:none}._ntg-seed-group{align-items:center;gap:var(--main-space-2);display:flex}._ntg-icon-btn{background:var(--ntg-bg-hover);border-style:solid;border-width:1px;border-color:var(--ntg-border);border-radius:var(--ntg-radius);width:36px;height:36px;color:var(--ntg-text-muted);cursor:pointer;justify-content:center;align-items:center;transition:all .15s;display:flex}._ntg-icon-btn:hover{border-color:var(--ntg-primary);color:var(--ntg-primary)}._ntg-select{padding:var(--main-space-2) var(--main-space-3);background:var(--ntg-bg);border-style:solid;border-width:1px;border-color:var(--ntg-border);border-radius:var(--ntg-radius);font-size:var(--main-text-sm);color:var(--ntg-text);cursor:pointer;min-width:120px}._ntg-select:focus{border-color:var(--ntg-primary);outline:none}._ntg-checkbox{cursor:pointer;align-items:center;display:flex}._ntg-checkbox input{display:none}._ntg-checkmark{border-style:solid;border-width:2px;border-color:var(--ntg-border);border-radius:4px;width:18px;height:18px;transition:all .15s;position:relative}._ntg-checkbox input:checked+._ntg-checkmark{background:var(--ntg-primary);border-color:var(--ntg-primary)}._ntg-checkbox input:checked+._ntg-checkmark:after{content:"";border:2px solid #fff;border-width:0 2px 2px 0;width:4px;height:8px;position:absolute;top:2px;left:5px;transform:rotate(45deg)}._ntg-color-picker{border-style:solid;border-width:1px;border-color:var(--ntg-border);border-radius:var(--ntg-radius);cursor:pointer;background:var(--ntg-bg);width:36px;height:36px;padding:2px}._ntg-color-pair{align-items:center;gap:var(--main-space-2);display:flex}._ntg-color-arrow{font-size:var(--main-text-sm);color:var(--ntg-text-muted)}._ntg-palette-colors{gap:var(--main-space-2);display:flex}@media (max-width:900px){._ntg-settings{flex-flow:wrap}._ntg-section{flex:1;min-width:280px}}@media (max-width:600px){._ntg-settings{flex-direction:column}._ntg-section{min-width:100%}._ntg-type-grid{grid-template-columns:repeat(2,1fr)}}._ntg-preview-area{gap:var(--main-space-4);flex-direction:column;min-height:400px;display:flex}._ntg-canvas-wrapper{align-items:center;gap:var(--main-space-3);flex-direction:column;display:flex}._ntg-canvas-container{background:var(--ntg-checkerboard);box-shadow:var(--ntg-shadow-lg);border-radius:var(--ntg-radius);justify-content:center;align-items:center;max-width:100%;display:flex;position:relative;overflow:hidden}._ntg-canvas-container canvas{max-width:100%;max-height:512px;display:block}._ntg-preview-toggle{border-style:solid;border-width:1px;border-color:var(--ntg-border);border-radius:var(--ntg-radius);display:flex;overflow:hidden}._ntg-toggle-btn{padding:var(--main-space-2) var(--main-space-4);background:var(--ntg-bg);font-size:var(--main-text-xs);color:var(--ntg-text-muted);cursor:pointer;border:none;font-weight:500;transition:all .15s}._ntg-toggle-btn:hover{background:var(--ntg-bg-hover)}._ntg-toggle-btn.active{background:var(--ntg-primary);color:#fff}._ntg-tiled-preview{border-radius:var(--ntg-radius);max-width:100%;box-shadow:var(--ntg-shadow-lg);overflow:hidden}._ntg-tiled-preview canvas{max-width:100%;max-height:512px;display:block}@media (max-width:600px){._ntg-preview-area{min-height:300px}._ntg-canvas-container canvas,._ntg-tiled-preview canvas{max-height:350px}}._ntg-actions{justify-content:center;align-items:center;gap:var(--main-space-3);display:flex}._ntg-btn{justify-content:center;align-items:center;gap:var(--main-space-2);padding:var(--main-space-3) var(--main-space-6);border-radius:var(--ntg-radius);font-size:var(--main-text-sm);cursor:pointer;font-weight:500;transition:all .15s;display:inline-flex}._ntg-btn:disabled{opacity:.5;cursor:not-allowed}._ntg-btn-primary{background:var(--ntg-primary);color:#fff;border:none;box-shadow:0 2px 8px #6366f140}._ntg-btn-primary:hover:not(:disabled){opacity:.9}._ntg-btn-secondary{background:var(--ntg-bg);border-style:solid;border-width:1px;border-color:var(--ntg-border);color:var(--ntg-text)}._ntg-btn-secondary:hover:not(:disabled){border-color:var(--ntg-border-hover);background:var(--ntg-bg-hover)}@media (max-width:480px){._ntg-actions{flex-direction:column}._ntg-btn{width:100%}}