:root{--bg:#ffffff;--fg:#1f2328;--muted:#59636e;--border:#d1d9e0;--accent:#0969da;--code-bg:#f6f8fa;--radius:8px;--addition:#d1242f;--hl-comment:#6e7781;--hl-keyword:#cf222e;--hl-string:#0a3069;--hl-number:#0550ae;--hl-title:#6639ba;--hl-builtin:#953800;--hl-attr:#0550ae;--hl-tag:#116329}@media (prefers-color-scheme:dark){:root{--bg:#0d1117;--fg:#e6edf3;--muted:#9198a1;--border:#30363d;--accent:#4493f8;--code-bg:#161b22;--addition:#ff6b6b;--hl-comment:#8b949e;--hl-keyword:#ff7b72;--hl-string:#a5d6ff;--hl-number:#79c0ff;--hl-title:#d2a8ff;--hl-builtin:#ffa657;--hl-attr:#79c0ff;--hl-tag:#7ee787}}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--bg);color:var(--fg);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Helvetica,Arial,sans-serif;line-height:1.5}.composer{max-width:860px;margin:0 auto;padding:48px 24px;display:flex;flex-direction:column;gap:16px}.composer header h1{margin:0;font-size:28px;font-weight:600}.composer header p{margin:4px 0 0;color:var(--muted)}.composer textarea{width:100%;min-height:50vh;resize:vertical;padding:16px;font-family:ui-monospace,SFMono-Regular,SF Mono,Menlo,monospace;font-size:14px;color:var(--fg);background:var(--code-bg);border:1px solid var(--border);border-radius:var(--radius)}.composer textarea:focus{outline:2px solid var(--accent);outline-offset:1px}.actions,.result{display:flex;align-items:center;gap:12px}button{padding:8px 16px;font-size:14px;font-weight:500;color:#fff;background:var(--accent);border:none;border-radius:var(--radius);cursor:pointer}button:disabled{opacity:.5;cursor:not-allowed}.result{padding:12px 16px;background:var(--code-bg);border:1px solid var(--border);border-radius:var(--radius)}.result a{flex:1 1;color:var(--accent);word-break:break-all;text-decoration:none}.error{color:#d1242f;font-size:14px}.markdown-body{max-width:860px;margin:0 auto;padding:48px 24px;word-wrap:break-word}.markdown-body h1,.markdown-body h2{padding-bottom:.3em;border-bottom:1px solid var(--border)}.markdown-body h1,.markdown-body h2,.markdown-body h3,.markdown-body h4{margin-top:24px;margin-bottom:16px;font-weight:600;line-height:1.25}.markdown-body a{color:var(--accent)}.markdown-body code{padding:.2em .4em;font-family:ui-monospace,SFMono-Regular,SF Mono,Menlo,monospace;font-size:85%;background:var(--code-bg);border-radius:6px}.markdown-body pre{padding:16px;overflow:auto;background:var(--code-bg);border-radius:var(--radius)}.markdown-body pre code{padding:0;background:transparent}.markdown-body blockquote{margin:0;padding:0 1em;color:var(--muted);border-left:.25em solid var(--border)}.markdown-body table{border-collapse:collapse;display:block;overflow:auto}.markdown-body td,.markdown-body th{padding:6px 13px;border:1px solid var(--border)}.markdown-body img{max-width:100%}.markdown-body hr{border:none;border-top:1px solid var(--border)}.doc{max-width:860px;margin:0 auto;padding:24px}.doc-toolbar{position:-webkit-sticky;position:sticky;top:0;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:8px 0;background:var(--bg);border-bottom:1px solid var(--border)}.doc-hint,.doc-status{font-size:13px;color:var(--muted)}.doc .markdown-body{padding:24px 0}.addition{color:var(--addition)}.markdown-body.editable{outline:none;min-height:60vh;caret-color:var(--accent)}.markdown-body.editable:focus-visible{outline:none}.hljs-comment,.hljs-quote{color:var(--hl-comment);font-style:italic}.hljs-doctag,.hljs-keyword,.hljs-literal,.hljs-selector-tag{color:var(--hl-keyword)}.hljs-meta .hljs-string,.hljs-regexp,.hljs-string{color:var(--hl-string)}.hljs-bullet,.hljs-link,.hljs-number,.hljs-symbol{color:var(--hl-number)}.hljs-section,.hljs-title,.hljs-title.class_,.hljs-title.function_{color:var(--hl-title)}.hljs-built_in,.hljs-params,.hljs-type{color:var(--hl-builtin)}.hljs-attr,.hljs-attribute,.hljs-template-variable,.hljs-variable{color:var(--hl-attr)}.hljs-name,.hljs-selector-class,.hljs-selector-id,.hljs-tag{color:var(--hl-tag)}.hljs-emphasis{font-style:italic}.hljs-strong{font-weight:600}