:root{--bg-color:#1a1a2e;--primary-color:#16213e;--secondary-color:#0f3460;--accent-color:#e94560;--text-color:#e0e0e0;--border-color:#535353;--input-bg:#2c2c44;--input-border:#446;--button-bg:var(--secondary-color);--button-hover-bg:#1a4a8a;--button-active-bg:#0c2a52;--font-family:"Segoe UI",Tahoma,Geneva,Verdana,sans-serif;--header-height:60px;--aside-width:800px}[data-theme=light]{--bg-color:#f0f2f5;--primary-color:#fff;--secondary-color:#e4e6eb;--accent-color:#1877f2;--text-color:#1c1e21;--border-color:#ced0d4;--input-bg:#fff;--input-border:#ccd0d5;--button-bg:var(--secondary-color);--button-hover-bg:#d4d7dc;--button-active-bg:#bec3c9}*{margin:0;padding:0;box-sizing:border-box}body{font-family:var(--font-family);background-color:var(--bg-color);color:var(--text-color);line-height:1.6;transition:background-color .3s,color .3s}header{background-color:var(--primary-color);padding:0 20px;height:var(--header-height);display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--border-color);position:sticky;top:0;z-index:2}header h1{font-size:1.5rem;color:var(--accent-color)}.theme-switcher{display:flex;align-items:center}.theme-switcher label{margin-right:8px}.grid-generator-layout{display:flex;min-height:calc(100vh - var(--header-height))}.controls-panel{width:var(--aside-width);background-color:var(--primary-color);overflow-y:auto;border-right:1px solid var(--border-color);gap:20px;overflow-x:hidden}.controls-panel,.visual-editor-area{padding:20px;display:flex;flex-direction:column}.visual-editor-area{flex-grow:1;align-items:center}.code-output-area{width:var(--aside-width);background-color:var(--primary-color);padding:20px;overflow-y:auto;border-left:1px solid var(--border-color)}.control-group{background-color:var(--secondary-color);padding:15px;border-radius:8px;border:1px solid var(--border-color)}.control-group h3{margin-bottom:15px;color:var(--accent-color);font-size:1.1rem;border-bottom:1px solid var(--border-color);padding-bottom:8px}.controls-panel label{display:block;margin-top:10px;margin-bottom:5px;font-size:.9rem}.controls-panel input[type=number],.controls-panel input[type=text],.controls-panel select{width:100%;padding:8px 10px;background-color:var(--input-bg);border:1px solid var(--input-border);color:var(--text-color);border-radius:4px;margin-bottom:10px;font-size:.9rem}.controls-panel input:focus,.controls-panel select:focus{outline:none;border-color:var(--accent-color);box-shadow:0 0 0 2px rgba(233,69,96,.3)}.controls-panel button,.cta-button{background-color:var(--button-bg);color:var(--text-color);border:1px solid var(--input-border);padding:8px 12px;border-radius:4px;cursor:pointer;transition:background-color .2s;font-size:.9rem;margin-right:5px;margin-top:5px}.controls-panel button i,.cta-button i{margin-right:5px}.controls-panel button:hover,.cta-button:hover{background-color:var(--button-hover-bg)}.controls-panel button:active,.cta-button:active{background-color:var(--button-active-bg)}.cta-button{background-color:var(--accent-color);color:#fff;width:100%;padding:12px;font-size:1rem;margin-top:15px}.cta-button:hover{background-color:#d6304b}.canvas-controls{display:flex;justify-content:space-between;align-items:center;margin-top:20px;gap:10px}#clearGridItems,#toggleGridLines{background-color:var(--accent-color);color:#fff;width:fit-content;padding:5px;font-size:1.2rem}.resolution-buttons{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:10px}.resolution-buttons .resolution-btn{flex-grow:1}.resolution-buttons .resolution-btn.active{background-color:var(--accent-color);color:#fff;border-color:var(--accent-color)}#currentResolutionInfo{font-size:.85rem;color:#aaa;margin-top:5px}.placeholder-text{color:#aaa;font-style:italic;text-align:center;padding:20px 0}#gridCanvasWrapper{width:100%;max-width:calc(100vw - var(--aside-width) - 40px);overflow:auto;margin-top:20px;border:2px dashed var(--border-color);background-color:var(--secondary-color);padding:10px;position:relative}#gridCanvas{display:grid;position:relative}.grid-cell-overlay{border:1px dotted hsla(0,0%,100%,.2);pointer-events:none}.grid-cell-overlay.highlight{background-color:rgba(233,69,96,.2);border:1px solid var(--accent-color)}.grid-item{background-color:var(--accent-color);color:#fff;display:flex;align-items:center;justify-content:center;border-radius:4px;cursor:grab;user-select:none;padding:10px;font-size:.9rem;border:1px solid var(--bg-color);min-height:40px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.grid-item.selected{outline:3px solid #6af;box-shadow:0 0 10px rgba(102,170,255,.5)}.grid-item.dragging{opacity:.7;cursor:grabbing}.code-tabs{display:flex;margin-bottom:15px;border-bottom:1px solid var(--border-color)}.tab-link{background-color:transparent;border:none;padding:10px 15px;cursor:pointer;color:var(--text-color);font-size:.95rem;border-bottom:3px solid transparent;margin-bottom:-1px}.tab-link.active{border-bottom-color:var(--accent-color);color:var(--accent-color);font-weight:700}.tab-content,.tab-link:hover:not(.active){background-color:var(--secondary-color)}.tab-content{display:none;padding:15px;border-radius:0 0 8px 8px;border:1px solid var(--border-color);border-top:none}.tab-content.active{display:block}.tab-content pre{background-color:var(--input-bg);color:var(--text-color);padding:15px;border-radius:4px;overflow-x:auto;max-height:400px;font-size:.85rem;white-space:pre-wrap;word-break:break-all}.tab-content code{font-family:Courier New,Courier,monospace}.copy-code-btn{display:block;margin-top:10px;background-color:var(--button-bg);color:var(--text-color);border:1px solid var(--input-border);padding:8px 12px;border-radius:4px;cursor:pointer;transition:background-color .2s}.copy-code-btn:hover{background-color:var(--button-hover-bg)}.copy-code-btn i{margin-right:5px}footer{text-align:center;padding:15px;background-color:var(--primary-color);border-top:1px solid var(--border-color);font-size:.9rem}footer i{color:var(--accent-color)}@media (max-width:1200px){.grid-generator-layout{flex-direction:column}.code-output-area,.controls-panel{width:100%;border-right:none;border-left:none;border-bottom:1px solid var(--border-color);max-height:50vh}#gridCanvasWrapper{max-width:100%}}@media (max-width:768px){header h1{font-size:1.2rem}.code-output-area,.controls-panel,.visual-editor-area{padding:15px}.control-group{padding:10px}.controls-panel button,.controls-panel input,.controls-panel label,.controls-panel select{font-size:.85rem}.resolution-buttons{flex-direction:column}.resolution-buttons .resolution-btn{width:100%}}.grid-item{position:relative}.resize-handle{position:absolute;width:10px;height:10px;background-color:rgba(102,170,255,.8);border:1px solid var(--primary-color);z-index:1}.resize-handle.br{bottom:-5px;right:-5px;cursor:nwse-resize}.resize-handle.r{top:50%;right:-5px;transform:translateY(-50%);cursor:ew-resize}.resize-handle.b{bottom:-5px;left:50%;transform:translateX(-50%);cursor:ns-resize}body.resizing,body.resizing *{cursor:var(--active-cursor,default)!important;user-select:none}