:root{--bg: #f8f9fb;--surface: #ffffff;--border: #e2e8f0;--text: #0f172a;--text-muted: #64748b;--primary: #6366f1;--primary-hover: #4f52d4;--radius: 10px}@media(prefers-color-scheme:dark){:root{--bg: #0f172a;--surface: #1e293b;--border: #334155;--text: #f1f5f9;--text-muted: #94a3b8;--primary: #818cf8;--primary-hover: #6366f1}}*,*:before,*:after{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}a{color:inherit}