:root{color-scheme:dark;font-family:Avenir Next,Segoe UI,sans-serif;background:radial-gradient(circle at 15% 20%,rgba(0,181,173,.28),transparent 28%),radial-gradient(circle at 85% 15%,rgba(255,163,26,.22),transparent 24%),linear-gradient(145deg,#07111d,#102235,#0f1724);color:#f5f9ff}body{margin:0;min-height:100vh;background:inherit;color:inherit}button{font:inherit}