:root{color-scheme:light;font-family:Inter,system-ui,sans-serif;background:#f4f6fb;color:#1c1f2b}body{margin:0}.app-shell{min-height:100vh;display:grid;place-items:center;padding:2rem}section{max-width:560px;width:100%;background:#fff;border-radius:20px;padding:2rem;box-shadow:0 20px 100px #00000014}h1{margin:0 0 1rem}