*{margin:0;padding:0;box-sizing:border-box}body{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;background:#1e1e1e;color:#d4d4d4;overflow:hidden;height:100vh;display:flex;flex-direction:column}#header{background:#252526;border-bottom:1px solid #3e3e42;display:flex;align-items:center;padding:0 8px;height:40px;overflow-x:auto;flex-shrink:0}#tabs-container{display:flex;gap:2px;flex:1;overflow-x:auto;scrollbar-width:none}#tabs-container::-webkit-scrollbar{display:none}.tab{padding:8px 16px;background:#2d2d30;border:none;color:#969696;cursor:pointer;white-space:nowrap;font-size:13px;border-top:2px solid transparent;transition:all .2s}.tab.active{background:#1e1e1e;color:#fff;border-top-color:#007acc}.tab:hover{background:#2a2d2e}#new-file-btn{background:none;border:none;color:#ccc;font-size:20px;cursor:pointer;padding:0 12px;margin-left:8px}#new-file-btn:hover{color:#fff}#header-actions{display:flex;gap:4px;margin-left:8px}#download-btn,#delete-btn{background:none;border:none;color:#ccc;font-size:16px;cursor:pointer;padding:0 10px;transition:color .2s}#download-btn:hover{color:#4ec9b0}#delete-btn:hover{color:#f48771}.tab{position:relative;padding:8px 16px;background:#2d2d30;border:none;color:#969696;cursor:pointer;white-space:nowrap;font-size:13px;border-top:2px solid transparent;transition:all .2s;user-select:none}.tab.editing{padding:6px 8px}.tab input{background:#3c3c3c;border:1px solid #007acc;color:#fff;padding:2px 6px;font-size:13px;outline:none;border-radius:2px;font-family:inherit}#split-container{flex:1;display:flex;overflow:hidden;position:relative}#editor-pane{flex:1;min-width:200px;display:flex;flex-direction:column;overflow:hidden}#editor-container{flex:1;overflow:hidden}#resizer{width:4px;background:#3e3e42;cursor:col-resize;transition:background .2s;flex-shrink:0}#resizer:hover,#resizer.resizing{background:#007acc}#preview-pane{flex:1;min-width:200px;display:flex;flex-direction:column;background:#1e1e1e;overflow:hidden}#preview-pane.hidden{display:none}#preview-header{background:#252526;border-bottom:1px solid #3e3e42;padding:8px 12px;display:flex;justify-content:space-between;align-items:center;flex-shrink:0}#preview-title{color:#ccc;font-size:13px;font-weight:500}#preview-actions{display:flex;gap:8px}#refresh-preview,#toggle-preview{background:none;border:none;font-size:16px;cursor:pointer;padding:4px 8px;border-radius:3px;transition:background .2s}#refresh-preview:hover,#toggle-preview:hover{background:#2a2d2e}#preview-frame{flex:1;border:none;background:#fff;width:100%}#console-output{background:#1e1e1e;border-top:1px solid #3e3e42;display:flex;flex-direction:column;max-height:200px;min-height:100px;flex-shrink:0}#console-header{background:#252526;padding:6px 12px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #3e3e42}#console-header span{color:#ccc;font-size:12px;font-weight:500}#clear-console{background:none;border:none;color:#ccc;font-size:11px;cursor:pointer;padding:2px 8px;border-radius:3px}#clear-console:hover{background:#2a2d2e}#console-logs{flex:1;overflow-y:auto;padding:8px;font-family:Consolas,Monaco,monospace;font-size:12px}.console-log{padding:4px 8px;margin:2px 0;border-left:3px solid transparent;word-wrap:break-word}.console-log.log{color:#ccc;border-left-color:#4ec9b0}.console-log.error{color:#f48771;border-left-color:#f48771;background:#f487711a}.console-log.warn{color:#dcdcaa;border-left-color:#dcdcaa;background:#dcdcaa1a}.console-log.info{color:#4fc1ff;border-left-color:#4fc1ff}@media(max-width:768px){#split-container{flex-direction:column}#resizer{width:100%;height:4px;cursor:row-resize}#preview-pane{max-height:50vh}}#mobile-toolbar{background:#252526;border-top:1px solid #3e3e42;display:flex;justify-content:space-around;padding:8px 4px;flex-shrink:0;overflow-x:auto}.toolbar-btn{background:#3e3e42;border:none;color:#ccc;padding:10px 14px;border-radius:4px;cursor:pointer;font-size:14px;font-family:Courier New,monospace;min-width:44px;transition:background .2s}.toolbar-btn:active{background:#007acc;color:#fff}@media(min-width:768px){#mobile-toolbar{display:none}}