*,:before,:after{box-sizing:border-box;margin:0;padding:0}body{color:#e2e8f0;background:#0f172a;min-height:100vh;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}h1{text-align:center;margin-bottom:1.5rem;font-size:1.6rem}