:root{--rojo-guardian:#ba1111;--rojo-profundo:#8f0d0d;--carbon:#19232d;--tinta:#2a2a2a;--gris:#484848;--humo:#f6f7f8;--dorado:#a37d3d;--linea:#e2e5e9;--papel:#fff}*{box-sizing:border-box}body{background:var(--humo);color:var(--tinta);margin:0;font-family:IBM Plex Sans,-apple-system,Segoe UI,sans-serif;line-height:1.6}h1,h2,h3{color:var(--carbon);text-transform:uppercase;letter-spacing:.01em;font-family:Barlow Semi Condensed,sans-serif}.tarjeta-modulo{transition:border-color .15s,transform .15s}.tarjeta-modulo:hover{border-color:var(--rojo-guardian);transform:translateY(-1px)}