:root{--fg: #1a1a1a;--fg-muted: #555;--bg: #ffffff;--accent: #0b5fff;--rule: #e5e5e5;--code-bg: #f4f4f4;--tool-hover: #eee;--canvas-bg: #fafafa;--max-width: 44rem;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;line-height:1.6;color:var(--fg);background:var(--bg);color-scheme:light}[data-theme=dark]{--fg: #e8e8e8;--fg-muted: #a0a0a0;--bg: #121212;--accent: #6ea8ff;--rule: #2a2a2a;--code-bg: #1e1e1e;--tool-hover: #2a2a2a;--canvas-bg: #c8c8c8;color-scheme:dark}body{color:var(--fg);background:var(--bg);transition:background-color .2s ease,color .2s ease}*{box-sizing:border-box}html,body{margin:0;padding:0}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}code{font-family:SF Mono,Menlo,Consolas,monospace;background:var(--code-bg);padding:.1em .35em;border-radius:3px;font-size:.9em}pre{background:var(--code-bg);padding:1rem;border-radius:6px;overflow-x:auto}pre code{background:transparent;padding:0}blockquote{border-left:4px solid var(--rule);margin:1em 0;padding:0 1em;color:var(--fg-muted)}.tool{background:transparent;border:1px solid transparent;border-radius:4px;padding:.25rem .5rem;cursor:pointer;font:inherit;color:var(--fg);min-width:2rem;height:2rem;display:inline-flex;align-items:center;justify-content:center}.tool:hover:not(:disabled){background:var(--tool-hover)}.tool.active{background:var(--fg);color:var(--bg);border-color:var(--fg)}.tool:disabled{opacity:.4;cursor:not-allowed}.tool.danger:hover{background:#fee;color:#c00}.tool .icon{font-size:1.1rem;line-height:1}.tool .icon-svg{display:block}