/* CorpusProof — sistema visual. Sin recursos de terceros: la pila de fuentes es la del
   sistema operativo. Es una restricción de producto, no de estilo: el sitio afirma que
   ningún documento sale del equipo del cliente y no puede él mismo llamar a un CDN. */

:root{
  --bg:#f7f9fa; --surface:#ffffff; --surface-2:#eef2f3;
  --fg:#0b1220; --muted:#4a5568; --line:#d9e0e3; --line-strong:#c2ccd1;
  --accent:#0f4c45; --accent-ink:#ffffff; --accent-soft:#e8f1ef; --accent-line:#bcd8d1;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --wrap:68rem; --prose:42rem; --radius:.65rem;
  --shadow:0 1px 2px rgba(11,18,32,.05), 0 8px 24px -16px rgba(11,18,32,.25);
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#0e1317; --surface:#161c22; --surface-2:#1c242b;
    --fg:#eef2f5; --muted:#a9b4bd; --line:#2a333b; --line-strong:#3a464f;
    --accent:#7fc9b8; --accent-ink:#0e1317; --accent-soft:#16241f; --accent-line:#2f4a44;
    --shadow:0 1px 2px rgba(0,0,0,.4), 0 8px 24px -16px rgba(0,0,0,.8);
  }
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--fg);
     font:17px/1.65 var(--sans);-webkit-font-smoothing:antialiased;
     overflow-x:hidden}
img,svg{max-width:100%}
a{color:var(--accent);text-underline-offset:2px}
a:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:3px}
.skip{position:absolute;left:-9999px}
.skip:focus{position:fixed;left:1rem;top:1rem;z-index:60;background:var(--accent);
            color:var(--accent-ink);padding:.7rem 1rem;border-radius:.4rem;font-weight:600}

.wrap{max-width:var(--wrap);margin:0 auto;padding:0 1.25rem}
.prose{max-width:var(--prose)}

/* ---------- cabecera ---------- */
.site-header{position:sticky;top:0;z-index:50;background:var(--bg);
             border-bottom:1px solid var(--line)}
.bar{max-width:var(--wrap);margin:0 auto;padding:.7rem 1.25rem;
     display:flex;align-items:center;gap:1rem;flex-wrap:wrap}
.brand{display:inline-flex;align-items:center;gap:.5rem;text-decoration:none;
       color:var(--fg);font-weight:600;letter-spacing:-.01em;font-size:1.02rem;flex:none}
.brand b{color:var(--accent);font-weight:700}
.brand.static{color:var(--fg)}
.nav{display:flex;gap:.15rem;flex-wrap:wrap;flex:1 1 auto}
.nav a{color:var(--muted);text-decoration:none;font-size:.95rem;font-weight:500;
       padding:.55rem .6rem;border-radius:.35rem;min-height:44px;display:inline-flex;
       align-items:center;transition:color 180ms ease,background-color 180ms ease}
.nav a:hover{color:var(--fg);background:var(--surface-2)}
.nav a[aria-current="page"]{color:var(--accent);background:var(--accent-soft);font-weight:600}

/* ---------- botones ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
     background:var(--accent);color:var(--accent-ink);text-decoration:none;font-weight:600;
     padding:.8rem 1.3rem;border-radius:.45rem;min-height:44px;cursor:pointer;
     border:1px solid var(--accent);
     transition:opacity 180ms ease,background-color 180ms ease,border-color 180ms ease}
.btn:hover{opacity:.88}
.btn:focus-visible{outline:2px solid var(--fg);outline-offset:3px}
.btn-sm{padding:.5rem .9rem;font-size:.95rem;flex:none}
.btn-ghost{background:transparent;color:var(--accent);border:1px solid var(--line-strong)}
.btn-ghost:hover{background:var(--accent-soft);border-color:var(--accent-line);opacity:1}
.btns{display:flex;gap:.75rem;flex-wrap:wrap;margin:1.5rem 0 0}
.mt{margin-top:1.25rem}

/* ---------- tipografía ---------- */
h1{font-size:clamp(1.9rem,4.6vw,2.7rem);line-height:1.15;letter-spacing:-.024em;margin:0 0 1rem}
h2{font-size:clamp(1.35rem,2.6vw,1.7rem);line-height:1.25;letter-spacing:-.016em;margin:0 0 .85rem}
h3{font-size:1.1rem;line-height:1.35;letter-spacing:-.008em;margin:0 0 .5rem}
p{margin:0 0 1rem;max-width:var(--prose)}
ul,ol{padding-left:1.2rem;margin:0 0 1rem;max-width:var(--prose)}
li{margin:.4rem 0}
strong{font-weight:650}
.lede{font-size:1.14rem;line-height:1.6;color:var(--muted)}
.eyebrow{display:inline-block;font-size:.74rem;font-weight:700;letter-spacing:.1em;
         text-transform:uppercase;color:var(--accent);background:var(--accent-soft);
         border:1px solid var(--accent-line);padding:.32rem .6rem;border-radius:.3rem;
         margin:0 0 1.1rem}
code{font-family:var(--mono);font-size:.88em;background:var(--surface-2);
     padding:.12rem .35rem;border-radius:.25rem;border:1px solid var(--line)}

/* ---------- secciones ---------- */
.section{padding:3.5rem 0;border-top:1px solid var(--line)}
.section:first-of-type{border-top:0}
.section.tint{background:var(--surface-2)}
.hero{padding:4rem 0 3rem}
.section-head{max-width:var(--prose);margin:0 0 2rem}
.section-head p:last-child{margin-bottom:0}

/* ---------- rejillas y tarjetas ---------- */
.grid{display:grid;gap:1rem;grid-template-columns:repeat(auto-fit,minmax(16rem,1fr))}
.grid.two{grid-template-columns:repeat(auto-fit,minmax(20rem,1fr))}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
      padding:1.35rem 1.4rem;box-shadow:var(--shadow)}
.card h3{margin-bottom:.4rem}
.card p{color:var(--muted);font-size:.97rem;margin-bottom:0}
.card p + p{margin-top:.6rem}
.card .num{display:inline-flex;align-items:center;justify-content:center;width:1.9rem;
           height:1.9rem;border-radius:50%;background:var(--accent-soft);
           border:1px solid var(--accent-line);color:var(--accent);font-weight:700;
           font-size:.9rem;margin:0 0 .8rem}
.card a{font-weight:600}

/* tarjeta enlazada entera */
a.card{display:block;text-decoration:none;color:inherit;cursor:pointer;
       transition:border-color 200ms ease,background-color 200ms ease}
a.card:hover{border-color:var(--accent-line);background:var(--accent-soft)}
a.card h3{color:var(--accent)}

/* ---------- cifras ---------- */
.stats{display:grid;gap:1rem;grid-template-columns:repeat(auto-fit,minmax(11rem,1fr));
       margin:2rem 0 0;padding:0;list-style:none;max-width:none}
.stats li{margin:0;background:var(--surface);border:1px solid var(--line);
          border-radius:var(--radius);padding:1.1rem 1.2rem}
.stats b{display:block;font-size:1.5rem;line-height:1.15;letter-spacing:-.02em;color:var(--accent)}
.stats span{display:block;margin-top:.3rem;color:var(--muted);font-size:.9rem;line-height:1.45}

/* ---------- llamadas ---------- */
.callout{border:1px solid var(--accent-line);background:var(--accent-soft);
         border-radius:var(--radius);padding:1.25rem 1.4rem;margin:1.75rem 0;max-width:var(--prose)}
.callout > :last-child{margin-bottom:0}
.callout b.title{display:block;margin-bottom:.45rem;font-size:1.02rem}
.callout.warn{border-color:var(--line-strong);background:var(--surface-2)}

/* ---------- listas de definición ---------- */
.deflist{margin:0;padding:0;max-width:var(--prose)}
.deflist > div{padding:1.1rem 0;border-top:1px solid var(--line)}
.deflist > div:first-child{border-top:0;padding-top:0}
.deflist dt{font-weight:650;margin:0 0 .3rem}
.deflist dd{margin:0;color:var(--muted);font-size:.97rem}

/* ---------- tablas ---------- */
.table-scroll{overflow-x:auto;margin:0 0 1rem;max-width:var(--prose)}
table{border-collapse:collapse;width:100%;font-size:.95rem}
th,td{text-align:left;padding:.6rem .75rem;border-bottom:1px solid var(--line);vertical-align:top}
th{font-weight:650;background:var(--surface-2)}

/* ---------- pasos ---------- */
.steps{counter-reset:s;list-style:none;padding:0;margin:0;max-width:var(--prose)}
.steps > li{counter-increment:s;position:relative;padding:0 0 1.6rem 3rem;margin:0}
.steps > li::before{content:counter(s);position:absolute;left:0;top:0;width:2rem;height:2rem;
      display:flex;align-items:center;justify-content:center;border-radius:50%;
      background:var(--accent);color:var(--accent-ink);font-weight:700;font-size:.92rem}
.steps > li::after{content:"";position:absolute;left:1rem;top:2.3rem;bottom:.3rem;width:1px;
      background:var(--line)}
.steps > li:last-child{padding-bottom:0}
.steps > li:last-child::after{display:none}
.steps h3{margin-bottom:.35rem}
.steps p{color:var(--muted);font-size:.97rem;margin-bottom:0}

/* ---------- cierre ---------- */
.closer{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
        padding:2rem 1.75rem;box-shadow:var(--shadow)}
.closer h2{margin-bottom:.6rem}
.closer p{margin-bottom:0}

/* ---------- pie ---------- */
.site-footer{margin-top:0;border-top:1px solid var(--line);background:var(--surface-2);
             padding:3rem 0 2.5rem;color:var(--muted);font-size:.95rem}
.site-footer .cols{display:grid;gap:2rem;grid-template-columns:repeat(auto-fit,minmax(12rem,1fr))}
.site-footer .col.about{grid-column:span 1}
.site-footer .col.about p{font-size:.93rem;margin:.8rem 0 0}
.site-footer h2{font-size:.8rem;letter-spacing:.09em;text-transform:uppercase;
                color:var(--fg);margin:0 0 .7rem}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer li{margin:.1rem 0}
.site-footer a{color:var(--muted);text-decoration:none;display:inline-block;padding:.35rem 0}
.site-footer a:hover{color:var(--accent);text-decoration:underline}
.site-footer .fine{margin:2.5rem 0 0;padding-top:1.5rem;border-top:1px solid var(--line);
                   font-size:.88rem;max-width:none}

/* ---------- páginas legales ---------- */
.legal h2{font-size:1.15rem;margin:2.25rem 0 .5rem;padding-top:1.5rem;border-top:1px solid var(--line)}
.legal h2:first-of-type{border-top:0;padding-top:0;margin-top:1.5rem}

@media (max-width:640px){
  .bar{padding:.6rem 1rem;gap:.6rem}
  .nav{order:3;flex-basis:100%;gap:0;margin-top:.1rem}
  .nav a{padding:.5rem .55rem;font-size:.9rem}
  .hero{padding:2.75rem 0 2rem}
  .section{padding:2.75rem 0}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{transition-duration:.01ms !important;animation-duration:.01ms !important}
}