:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media(prefers-color-scheme:light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}:root{--bg-color: #f5f5f5;--header-bg: #fff;--header-text: #333;--border-color: #ddd;--editor-bg: #fff;--editor-text: #333;--line-num-bg: #f5f5f5;--line-num-text: #888;--preview-bg: #fff;--resizer-bg: #ddd;--resizer-hover: #007bff;--zoom-controls-bg: transparent;--zoom-btn-bg: #fff;--zoom-btn-text: #333;--zoom-btn-shadow: rgba(0,0,0,.15);--zoom-btn-hover: #f8f9fa;--scrollbar-track: #f1f1f1;--scrollbar-thumb: #c1c1c1;--scrollbar-thumb-hover: #a8a8a8}[data-theme=dark]{--bg-color: #121212;--header-bg: #1e1e1e;--header-text: #e0e0e0;--border-color: #333;--editor-bg: #1e1e1e;--editor-text: #e0e0e0;--line-num-bg: #252526;--line-num-text: #6c6c6c;--preview-bg: #2d2d2d;--resizer-bg: #333;--resizer-hover: #007bff;--zoom-controls-bg: transparent;--zoom-btn-bg: #333;--zoom-btn-text: #fff;--zoom-btn-shadow: rgba(0,0,0,.5);--zoom-btn-hover: #444;--scrollbar-track: #2d2d2d;--scrollbar-thumb: #555;--scrollbar-thumb-hover: #777}#root{width:100%;height:100vh;display:flex;flex-direction:column;margin:0;padding:0}.app-container{display:flex;flex-direction:column;height:100vh;width:100vw;overflow:hidden;background-color:var(--bg-color);color:var(--header-text)}.header{display:flex;justify-content:space-between;align-items:center;padding:1rem 2rem;background-color:var(--header-bg);border-bottom:1px solid var(--border-color);box-shadow:0 2px 4px #0000000d}.header h1{margin:0;font-size:1.5rem;color:var(--header-text)}.actions{display:flex;gap:.8rem;align-items:center}.icon-btn{width:3.5rem;height:3.5rem;padding:0;border:none;background:var(--zoom-btn-bg);color:var(--zoom-btn-text);border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:transform .1s,background-color .2s,box-shadow .2s;box-shadow:0 2px 4px var(--zoom-btn-shadow);outline:none}.icon-btn:focus{outline:none}.icon-btn:hover{background:var(--zoom-btn-hover);transform:translateY(-1px);box-shadow:0 4px 8px var(--zoom-btn-shadow)}.icon-btn:active{transform:translateY(1px);box-shadow:0 1px 2px var(--zoom-btn-shadow)}.icon-btn svg{width:2.1rem!important;height:2.1rem!important}.main-content{display:flex;flex:1;overflow:hidden}.editor-pane{border-right:none;background-color:var(--editor-bg);display:flex;flex-direction:column}.resizer{width:5px;background-color:var(--resizer-bg);cursor:col-resize;transition:background-color .2s;z-index:10}.resizer:hover,.resizer:active{background-color:var(--resizer-hover)}.editor-wrapper{display:flex;width:100%;height:100%;overflow:hidden}.line-numbers{width:3.5rem;background-color:var(--line-num-bg);border-right:1px solid var(--border-color);text-align:right;padding:1rem .5rem;font-family:Fira Code,monospace;font-size:14px;line-height:1.5;color:var(--line-num-text);overflow:hidden;-webkit-user-select:none;user-select:none}.code-editor{flex:1;width:100%;height:100%;resize:none;padding:1rem;font-family:Fira Code,monospace;font-size:14px;line-height:1.5;color:var(--editor-text);border:none;outline:none;background-color:transparent;white-space:pre;overflow-y:scroll;scrollbar-width:thin;scrollbar-color:var(--scrollbar-thumb) var(--scrollbar-track)}.code-editor::-webkit-scrollbar{width:10px;height:10px}.code-editor::-webkit-scrollbar-track{background:var(--scrollbar-track)}.code-editor::-webkit-scrollbar-thumb{background:var(--scrollbar-thumb);border-radius:5px;border:2px solid var(--scrollbar-track)}.code-editor::-webkit-scrollbar-thumb:hover{background:var(--scrollbar-thumb-hover)}.preview-pane{flex:1;background-color:var(--preview-bg);overflow:hidden;position:relative}.mermaid-container svg{width:100%!important;height:auto!important;max-width:none!important}.zoom-controls{position:fixed;bottom:2rem;right:2rem;background:var(--zoom-controls-bg);padding:0;border:none;box-shadow:none;display:flex;flex-direction:column;gap:1rem;align-items:center;z-index:100}.zoom-controls button{width:4rem;height:4rem;border:none;background:var(--zoom-btn-bg);color:var(--zoom-btn-text);border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:transform .1s,background-color .2s,box-shadow .2s;box-shadow:0 2px 8px var(--zoom-btn-shadow);outline:none}.zoom-controls button:focus{outline:none}.zoom-controls button:hover{background:var(--zoom-btn-hover);transform:translateY(-1px);box-shadow:0 4px 12px var(--zoom-btn-shadow)}.zoom-controls button:active{transform:translateY(1px);box-shadow:0 1px 4px var(--zoom-btn-shadow)}.zoom-controls button svg{width:2.8rem;height:2.8rem}.mermaid-container{width:100%;height:100%;display:flex;justify-content:center}