:root{--bg: #f7f7f5;--surface: #ffffff;--text: #1d1d1b;--muted: #6b6b66;--border: #e3e3de;--accent: #1f6feb;--up: #1a7f37;--down: #cf222e;--row-hover: #f1f4f9;--heading-bg: #f0f0ec;color-scheme:light}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:14px/1.45 system-ui,-apple-system,Segoe UI,sans-serif}a{color:var(--accent)}.topbar{display:flex;justify-content:space-between;align-items:center;padding:10px 24px;background:var(--surface);border-bottom:1px solid var(--border)}.brand{display:flex;align-items:center;text-decoration:none}.logo{display:block;height:30px;width:auto}.who{display:flex;align-items:center;gap:12px;color:var(--muted)}.lang-switch{display:flex;gap:2px;padding-right:12px;margin-right:2px;border-right:1px solid var(--border)}.lang-switch button{color:var(--muted);background:none;border:0;font-size:12px;font-weight:600;padding:2px 6px;border-radius:4px}.lang-switch button:hover{color:var(--text)}.lang-switch 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