:root{--bg-primary:#fff;--bg-secondary:#f8f9facc;--text-primary:#212529;--text-secondary:#6c757d;--accent-color:#4a90e2;--accent-hover:#357abd;--border-color:#dee2e6;--card-bg:#ffffffe6;--shadow:0 4px 6px #0000001a;--font-family:"Inter",system-ui,-apple-system,sans-serif}[data-theme=dark]{--bg-primary:#0f172a;--bg-secondary:#1e293bb3;--text-primary:#f8f9fa;--text-secondary:#adb5bd;--accent-color:#60a5fa;--accent-hover:#93c5fd;--border-color:#334155;--card-bg:#1e293bcc;--shadow:0 4px 6px #0000004d}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-family);background-color:var(--bg-primary);color:var(--text-primary);transition:background-color .3s,color .3s;overflow-x:hidden}a{color:inherit;text-decoration:none}ul{list-style:none}button{cursor:pointer;font-family:inherit}