:root{color-scheme:light dark;font-family:system-ui,sans-serif}body{margin:0}main{max-width:40rem;margin:0 auto;padding:2rem 1rem;line-height:1.5}h1{margin-bottom:.25rem}.bom{color:#1a7f37}.ruim{color:#cf222e}footer{margin-top:3rem;font-size:.85rem;opacity:.7}