body{margin:0;padding:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;color:#333;background-color:#fff}.container{max-width:1200px;margin:0 auto;padding:0 1rem}.text-center{text-align:center}.app{min-height:100vh;background-color:#f5f5f5}@media (max-width: 600px){.app{padding:.5rem}}@media (min-width: 601px){.app{padding:1rem}}.app h1{color:#1976d2;margin-bottom:2rem}