*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{color-scheme:dark;--bg: #0d1117;--surface: #161b22;--surface2: #21262d;--border: #30363d;--text: #e6edf3;--muted: #7d8590;--accent: #2f81f7;--accent-hover: #388bfd;--green: #3fb950;--yellow: #d29922;--red: #f85149;--font-mono: "SFMono-Regular", "Consolas", "Liberation Mono", monospace;--radius: 6px}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,system-ui,sans-serif;background:var(--bg);color:var(--text);font-size:14px;line-height:1.5;min-height:100vh;overflow-x:hidden}a{color:var(--accent);text-decoration:none}a:hover{color:var(--accent-hover)}button{cursor:pointer;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface2);color:var(--text);padding:5px 12px;font-size:13px;transition:background .15s,border-color 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