:root{--color-fondo:#ffffff;--color-texto:#1a1a1a;--color-primario:#1d4ed8;--color-primario-texto:#ffffff;--color-borde:#4b5563;--color-foco:#b45309;--color-fondo-suave:#f3f4f6;--radio:10px;--espacio:1rem;--ancho-max:60rem;font-size:18px}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--color-fondo);color:var(--color-texto);font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;line-height:1.6}:focus-visible{outline:3px solid var(--color-foco);outline-offset:2px;border-radius:4px}.skip-link{position:absolute;left:-9999px;top:0;background:var(--color-texto);color:var(--color-fondo);padding:.75rem 1rem;z-index:100;border-radius:0 0 var(--radio) 0}.skip-link:focus{left:0}main{max-width:var(--ancho-max);margin:0 auto;padding:calc(var(--espacio) * 1.5)}h1{font-size:2rem;line-height:1.2}h1,h2{overflow-wrap:break-word}h2{font-size:1.5rem}img,svg{max-width:100%;height:auto}a{color:var(--color-primario)}.boton{display:inline-block;background:var(--color-primario);color:var(--color-primario-texto);border:2px solid transparent;padding:.75rem 1.25rem;min-height:44px;font-size:1.05rem;font-weight:600;border-radius:var(--radio);cursor:pointer;text-decoration:none}.boton:hover{filter:brightness(.92)}.boton-secundario{background:var(--color-fondo);color:var(--color-primario);border-color:var(--color-borde)}input[type=number],input[type=text],textarea{width:100%;font-size:1.05rem;padding:.6rem .75rem;border:2px solid var(--color-borde);border-radius:var(--radio);background:var(--color-fondo);color:var(--color-texto)}label{display:block;font-weight:600;margin-bottom:.35rem}.atribucion{max-width:var(--ancho-max);margin:2rem auto 0;padding:1rem 1.5rem;border-top:1px solid var(--color-borde);font-size:.85rem;color:#374151}.barra-superior{display:flex;align-items:center;justify-content:space-between;gap:1rem;max-width:var(--ancho-max);margin:0 auto;padding:.75rem 1.5rem;border-bottom:1px solid var(--color-borde)}@media (max-width:640px){:root{font-size:17px}main{padding:var(--espacio)}h1{font-size:1.6rem}h2{font-size:1.3rem}.barra-superior{flex-wrap:wrap;padding:.6rem var(--espacio);gap:.5rem}.boton{width:100%;text-align:center;padding:.85rem 1rem}.fila-acciones{flex-direction:column!important;align-items:stretch!important}.fila-acciones .boton{width:100%}.atribucion{padding:1rem var(--espacio)}.barra-superior .boton,[role=group] .boton{width:auto}}@media (prefers-reduced-motion:reduce){*,:after,:before{animation-duration:.001ms!important;transition-duration:.001ms!important}}@media (prefers-color-scheme:dark){:root{--color-fondo:#0f172a;--color-texto:#f1f5f9;--color-fondo-suave:#1e293b;--color-borde:#94a3b8;--color-primario:#60a5fa;--color-primario-texto:#0f172a;--color-foco:#fbbf24}.atribucion{color:#cbd5e1}}