:root{--bg:#0a0a0a;--surface:#121214;--border:#26262b;--text:#f4f4f5;--muted:#9ca3af;--brand:#2563eb}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:var(--bg);min-height:100dvh;color:var(--text);-webkit-font-smoothing:antialiased;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif}