:root{--bg:#fff;--surface:#f7f7f5;--text:#1a1a18;--text-muted:#6b6b66;--border:#e0e0db;--border-strong:#c4c4bd;--accent:#1a1a18;--on-accent:#fff;--win-bg:#e3f3e6;--win-text:#1c6b32;--warn-bg:#fdf2d9;--warn-text:#8a5f0a;--danger-bg:#fbe6e6;--danger-text:#9c2b2b;--radius:10px}@media (prefers-color-scheme:dark){:root{--bg:#1a1a18;--surface:#242422;--text:#f2f2ef;--text-muted:#a3a39d;--border:#383835;--border-strong:#4f4f4a;--accent:#f2f2ef;--on-accent:#1a1a18;--win-bg:#1e3d27;--win-text:#8ed9a3;--warn-bg:#40320f;--warn-text:#e8c776;--danger-bg:#3d1e1e;--danger-text:#e89a9a}}*{box-sizing:border-box}body{background:var(--bg);color:var(--text);-webkit-text-size-adjust:100%;overscroll-behavior:none;margin:0;font-family:system-ui,-apple-system,sans-serif}button{font:inherit;color:inherit;border-radius:var(--radius);cursor:pointer;min-height:44px}