:root{--color-fondo:#10131a;--color-superficie:#191e28;--color-texto:#eef2f7;--color-texto-suave:#aab4c2;--color-borde:#303a4a}*,:before,:after{box-sizing:border-box}html,body{height:100%}html,body,h1,h2,h3,p{margin:0}body{background:var(--color-fondo);color:var(--color-texto);font-family:Arial,Helvetica,sans-serif;line-height:1.5}