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var(--color-border);flex-shrink:0}.brand{font-size:16px;font-weight:600;color:var(--color-text);white-space:nowrap;flex-shrink:0}.header__file{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--color-text-muted);font-family:JetBrains Mono,ui-monospace,SFMono-Regular,Menlo,monospace}.header__links{display:flex;align-items:center;gap:8px;margin-left:auto}.lang-switcher{display:flex;align-items:center;gap:2px;background:var(--color-canvas);border:1px solid var(--color-border);border-radius:6px;padding:2px}.lang-switcher__btn{padding:3px 8px;font-size:10px;font-weight:600;letter-spacing:.3px;background:transparent;border:none;border-radius:4px;color:var(--color-text-muted);cursor:pointer;font-family:inherit;transition:all .12s 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