*,:before,:after{box-sizing:border-box}html,body{color:#e2e8f0;background:linear-gradient(135deg,#0f172a 0%,#1e3a5f 50%,#0c4a6e 100%);min-height:100vh;margin:0;padding:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif}