:root{--bg:#101923;--panel:#182532;--line:#2c3d4b;--text:#ebf4fa;--muted:#99adbf;--accent:#62e4c2;--input:#101e2a;color-scheme:dark}*{box-sizing:border-box}body{margin:0;font:15px/1.55 system-ui,-apple-system,Segoe UI,sans-serif;background:var(--bg);color:var(--text)}body.light{--bg:#edf3f6;--panel:#fff;--line:#cad8e0;--text:#183041;--muted:#546f82;--accent:#087b64;--input:#f3f7f9;color-scheme:light}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}button,input,select,textarea{font:inherit}button,.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid var(--line);border-radius:8px;background:var(--input);color:var(--text);padding:10px 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