:root{--bg: #0d1117;--bg-2: #161b22;--bg-3: #21262d;--border: #30363d;--fg: #e6edf3;--fg-muted: #8b949e;--accent: #58a6ff;--green: #3fb950;--red: #f85149;--yellow: #d29922}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--bg);color:var(--fg);font-size:14px}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}button{font:inherit;background:var(--bg-3);color:var(--fg);border:1px solid var(--border);border-radius:6px;padding:6px 12px;cursor:pointer;transition:background 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