:root{--color-fondo: #f8fafc;--color-superficie: #ffffff;--color-texto: #0f172a;--color-texto-suave: #475569;--color-borde: #e2e8f0;--color-acento: #1d4ed8;--color-acento-oscuro: #1e40af;--color-acento-suave: #eff6ff;--color-ok: #166534;--color-ok-fondo: #f0fdf4;--color-aviso: #92400e;--color-aviso-fondo: #fffbeb;--color-error: #991b1b;--color-error-fondo: #fef2f2;--radio: 12px;--ancho: 960px;--fuente: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif}*,*:before,*:after{box-sizing:border-box}html{color-scheme:light;-webkit-text-size-adjust:100%}body{margin:0;font-family:var(--fuente);font-size:1.0625rem;line-height:1.65;color:var(--color-texto);background:var(--color-fondo)}img,svg{max-width:100%;height:auto}a{color:var(--color-acento);text-underline-offset:3px}a:hover{color:var(--color-acento-oscuro)}:focus-visible{outline:3px solid #f59e0b;outline-offset:2px}.saltar{position:absolute;left:-999px;top:0;background:var(--color-acento);color:#fff;padding:.5rem 1rem;z-index:10}.saltar:focus{left:0}.contenedor{width:100%;max-width:var(--ancho);margin:0 auto;padding:0 1rem}.cabecera{background:var(--color-superficie);border-bottom:1px solid var(--color-borde)}.cabecera .contenedor{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:.5rem 1.5rem;padding-top:.75rem;padding-bottom:.75rem}.logo{display:inline-flex;align-items:center;gap:.5rem;font-weight:700;font-size:1.25rem;color:var(--color-texto);text-decoration:none}.logo:hover{color:var(--color-texto)}.logo img{width:28px;height:28px}.menu{display:flex;gap:.25rem;list-style:none;margin:0;padding:0}.menu a{display:block;padding:.5rem .75rem;border-radius:8px;color:var(--color-texto);text-decoration:none;font-weight:500}.menu a:hover{background:var(--color-acento-suave)}.menu a[aria-current=page]{background:var(--color-acento-suave);color:var(--color-acento-oscuro);font-weight:700}main{padding:1.5rem 0 3rem}h1,h2,h3{line-height:1.25;margin:1.75rem 0 .75rem}h1{font-size:1.85rem;margin-top:.5rem}h2{font-size:1.4rem}h3{font-size:1.15rem}p,ul,ol{margin:0 0 1rem}.migas{font-size:.9rem;color:var(--color-texto-suave);margin-bottom:.5rem}.entradilla{font-size:1.15rem;color:var(--color-texto-suave)}.meta{font-size:.9rem;color:var(--color-texto-suave)}.hero{padding:1.5rem 0 1rem}.hero h1{font-size:2rem}.boton{display:inline-block;background:var(--color-acento);color:#fff;border:0;border-radius:10px;padding:.75rem 1.25rem;font:inherit;font-weight:700;text-decoration:none;cursor:pointer}.boton:hover{background:var(--color-acento-oscuro);color:#fff}.boton-secundario{background:var(--color-superficie);color:var(--color-acento-oscuro);border:1px solid var(--color-acento)}.boton-secundario:hover{background:var(--color-acento-suave);color:var(--color-acento-oscuro)}.rejilla{display:grid;gap:1rem;grid-template-columns:1fr}.tarjeta{background:var(--color-superficie);border:1px solid var(--color-borde);border-radius:var(--radio);padding:1.25rem}.tarjeta h2,.tarjeta h3{margin-top:0}.tarjeta p:last-child{margin-bottom:0}.etiqueta{display:inline-block;font-size:.8rem;font-weight:700;padding:.1rem .6rem;border-radius:999px;background:var(--color-acento-suave);color:var(--color-acento-oscuro)}.formulario{display:grid;gap:1rem;grid-template-columns:1fr}.campo label{display:block;font-weight:600;margin-bottom:.25rem}.campo .ayuda{display:block;font-size:.9rem;color:var(--color-texto-suave);margin-top:.25rem}.campo input{width:100%;font:inherit;padding:.7rem .8rem;border:1px solid #94a3b8;border-radius:10px;background:#fff;color:var(--color-texto)}.acciones{display:flex;flex-wrap:wrap;gap:.75rem}.resultado{margin-top:1rem}.resultado:empty{display:none}.caja{border-radius:var(--radio);padding:1rem 1.25rem;border:1px solid}.caja p{margin:0}.caja-ok{background:var(--color-ok-fondo);border-color:#86efac;color:var(--color-ok)}.caja-aviso{background:var(--color-aviso-fondo);border-color:#fcd34d;color:var(--color-aviso)}.caja-error{background:var(--color-error-fondo);border-color:#fca5a5;color:var(--color-error)}.cifra{display:block;font-size:2.25rem;font-weight:800;line-height:1.2}.formula{background:#f1f5f9;border-radius:10px;padding:.75rem 1rem;overflow-x:auto;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.95rem}.tabla-scroll{overflow-x:auto;margin-bottom:1rem}.tabla{width:100%;border-collapse:collapse;background:var(--color-superficie)}.tabla th,.tabla td{text-align:left;padding:.6rem .8rem;border:1px solid var(--color-borde)}.tabla th{background:var(--color-acento-suave)}details{background:var(--color-superficie);border:1px solid var(--color-borde);border-radius:10px;padding:.75rem 1rem;margin-bottom:.75rem}summary{cursor:pointer;font-weight:600}details p{margin:.75rem 0 0}.pie{border-top:1px solid var(--color-borde);background:var(--color-superficie);padding:1.5rem 0;font-size:.95rem;color:var(--color-texto-suave)}.pie ul{list-style:none;display:flex;flex-wrap:wrap;gap:.5rem 1.25rem;padding:0;margin:0 0 .75rem}.pie p{margin:0}@media(min-width:720px){body{font-size:1.125rem}h1{font-size:2.25rem}.hero h1{font-size:2.6rem}.rejilla-2{grid-template-columns:repeat(2,1fr)}.rejilla-3{grid-template-columns:repeat(3,1fr)}.formulario{grid-template-columns:repeat(2,1fr)}.formulario .completo{grid-column:1 / -1}}