/* Portal Integral de AFORES México — estilos base (mobile-first, accesible AA) */
:root{
  --azul:#0d4f4f;        /* primario (verde-azulado de confianza) */
  --azul-osc:#08393a;
  --azul-claro:#e6f2f1;
  --oro:#c98a16;         /* acento */
  --tinta:#16241f;       /* texto */
  --gris:#5b6b66;
  --gris-cl:#eef2f1;
  --linea:#d7e0dd;
  --blanco:#ffffff;
  --rojo:#9b2226;
  --verde-ok:#1b5e20;
  --radio:12px;
  --sombra:0 2px 10px rgba(8,57,58,.08);
  --max:1080px;
  --fs-base:17px;
}
*{box-sizing:border-box}
html{font-size:var(--fs-base);scroll-behavior:smooth}
body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  color:var(--tinta);background:var(--blanco);line-height:1.65;-webkit-font-smoothing:antialiased}
h1,h2,h3{line-height:1.25;color:var(--azul-osc);font-weight:700}
h1{font-size:1.95rem;margin:.2em 0 .4em}
h2{font-size:1.4rem;margin:1.6em 0 .5em;border-bottom:2px solid var(--azul-claro);padding-bottom:.2em}
h3{font-size:1.15rem;margin:1.2em 0 .4em}
p,li{font-size:1.02rem}
a{color:#0a6a6a;text-underline-offset:2px}
a:hover{color:var(--azul-osc)}
img{max-width:100%;height:auto}
.skip{position:absolute;left:-999px;top:0;background:var(--oro);color:#000;padding:.6em 1em;z-index:1000;border-radius:0 0 8px 0}
.skip:focus{left:0}
.wrap{max-width:var(--max);margin:0 auto;padding:0 1.1rem}
:focus-visible{outline:3px solid var(--oro);outline-offset:2px}

/* Header */
header.site{background:var(--azul);color:#fff;position:sticky;top:0;z-index:50;box-shadow:var(--sombra)}
header.site .wrap{display:flex;align-items:center;gap:1rem;justify-content:space-between;min-height:62px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:.55rem;color:#fff;text-decoration:none;font-weight:800;font-size:1.12rem}
.brand .dot{width:30px;height:30px;border-radius:8px;background:var(--oro);display:grid;place-items:center;color:#08393a;font-weight:900}
nav.main a{color:#eaf6f4;text-decoration:none;margin:0 .5rem;font-size:.95rem;white-space:nowrap}
nav.main a:hover{color:#fff;text-decoration:underline}
.menu-btn{display:none;background:transparent;border:2px solid #4f8d8d;color:#fff;border-radius:8px;padding:.35rem .6rem;font-size:1rem}
@media(max-width:860px){
  nav.main{flex-basis:100%;display:none}
  nav.main.open{display:block;padding-bottom:.6rem}
  nav.main a{display:block;margin:.3rem 0;padding:.4rem 0;border-bottom:1px solid #2c6464}
  .menu-btn{display:inline-block}
}

/* Hero */
.hero{background:linear-gradient(160deg,#0d4f4f,#08393a);color:#fff;padding:2.4rem 0 2.6rem}
.hero h1{color:#fff;max-width:18ch}
.hero p.lead{font-size:1.15rem;color:#d7ece9;max-width:60ch}
.chips{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:1rem}
.chip{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.25);color:#fff;
  padding:.45rem .8rem;border-radius:999px;text-decoration:none;font-size:.92rem}
.chip:hover{background:rgba(255,255,255,.22);color:#fff}

/* Botones */
.btn{display:inline-block;background:var(--oro);color:#1a1206;font-weight:700;text-decoration:none;
  padding:.7rem 1.15rem;border-radius:10px;border:0;cursor:pointer;font-size:1rem}
.btn:hover{background:#b07a10;color:#000}
.btn.sec{background:#fff;color:var(--azul-osc);border:2px solid var(--azul)}
.btn.block{display:block;width:100%;text-align:center}

/* Tarjetas */
.grid{display:grid;gap:1rem}
.grid.c2{grid-template-columns:repeat(2,1fr)}
.grid.c3{grid-template-columns:repeat(3,1fr)}
.grid.c4{grid-template-columns:repeat(4,1fr)}
@media(max-width:820px){.grid.c3,.grid.c4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:540px){.grid.c2,.grid.c3,.grid.c4{grid-template-columns:1fr}}
.card{background:#fff;border:1px solid var(--linea);border-radius:var(--radio);padding:1.1rem;box-shadow:var(--sombra)}
.card h3{margin-top:0}
.card a.more{font-weight:600}
.card.tema{display:flex;flex-direction:column;gap:.4rem}

/* Cajas especiales */
.box{border-radius:var(--radio);padding:1rem 1.15rem;margin:1.2rem 0;border-left:6px solid}
.box .t{font-weight:800;display:block;margin-bottom:.3rem}
.box.imp{background:var(--azul-claro);border-color:var(--azul)}
.box.paso{background:#eef7f0;border-color:var(--verde-ok)}
.box.error{background:#fdeceb;border-color:var(--rojo)}
.box.fuente{background:#f4f1e6;border-color:var(--oro)}
.box.ejemplo{background:#eef2f7;border-color:#345b8a}
.box.aviso{background:#fff4e0;border-color:#b07a10}

/* Anuncio (placeholder pre-AdSense, claramente etiquetado) */
.ad{margin:1.6rem 0;border:1px dashed #b9c5c2;border-radius:10px;background:#f7faf9;
  min-height:90px;display:grid;place-items:center;color:#8593900;color:#7c8a86;text-align:center}
.ad .lbl{font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;color:#9aa6a2}

/* Tablas */
.tabla-wrap{overflow-x:auto;margin:1rem 0}
table{border-collapse:collapse;width:100%;min-width:520px;background:#fff}
th,td{padding:.7rem .6rem;border-bottom:1px solid var(--linea);text-align:left;font-size:.98rem}
thead th{background:var(--azul);color:#fff;position:sticky;top:62px}
tbody tr:nth-child(even){background:#f7faf9}
.badge{display:inline-block;font-size:.72rem;font-weight:700;padding:.12rem .5rem;border-radius:6px;background:#fde9c8;color:#7a5208;border:1px solid #e8c684}

/* Contenido */
main{padding:1.4rem 0 2rem}
.breadcrumb{font-size:.85rem;color:var(--gris);margin:.2rem 0 .6rem}
.breadcrumb a{color:var(--gris)}
.meta{font-size:.85rem;color:var(--gris);margin:.2rem 0 1rem;border-bottom:1px solid var(--linea);padding-bottom:.7rem}
.toc{background:var(--gris-cl);border:1px solid var(--linea);border-radius:10px;padding:.8rem 1rem;margin:1rem 0}
.toc strong{display:block;margin-bottom:.3rem}
.toc ul{margin:.2rem 0 0 1rem;padding:0}
.sectionlead{font-size:1.1rem;color:var(--gris)}

/* Calculadora */
.calc{background:#fff;border:1px solid var(--linea);border-radius:var(--radio);padding:1.2rem;box-shadow:var(--sombra)}
.field{margin:.7rem 0}
.field label{display:block;font-weight:600;margin-bottom:.25rem}
.field input,.field select{width:100%;padding:.65rem .7rem;border:1px solid #b9c5c2;border-radius:8px;font-size:1rem;background:#fff}
.result{margin-top:1rem;background:var(--azul-claro);border-radius:10px;padding:1rem}
.result .big{font-size:1.9rem;font-weight:800;color:var(--azul-osc)}
details.sup{margin-top:.8rem;border:1px solid var(--linea);border-radius:8px;padding:.5rem .8rem;background:#fafcfb}
details.sup summary{cursor:pointer;font-weight:600}

/* Footer */
footer.site{background:var(--azul-osc);color:#cfe3e0;padding:2rem 0 2.5rem;margin-top:2rem;font-size:.92rem}
footer.site h4{color:#fff;margin:.2rem 0 .6rem;font-size:1rem}
footer.site a{color:#cfe3e0;text-decoration:none;display:block;padding:.18rem 0}
footer.site a:hover{color:#fff;text-decoration:underline}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:1.2rem}
@media(max-width:820px){.foot-grid{grid-template-columns:1fr 1fr}}
@media(max-width:480px){.foot-grid{grid-template-columns:1fr}}
.legalnote{border-top:1px solid #2c6464;margin-top:1.4rem;padding-top:1rem;color:#9fc1bd;font-size:.82rem}

/* Cookie banner */
.cookie{position:fixed;left:1rem;right:1rem;bottom:1rem;max-width:var(--max);margin:0 auto;background:#fff;
  color:var(--tinta);border:1px solid var(--linea);border-radius:12px;box-shadow:0 6px 24px rgba(0,0,0,.18);
  padding:1rem 1.1rem;z-index:200;display:none}
.cookie.show{display:block}
.cookie .row{display:flex;gap:.6rem;flex-wrap:wrap;margin-top:.6rem}
.cookie button{font-size:.92rem;padding:.5rem .9rem}
.disclaimer-min{font-size:.8rem;color:var(--gris);background:#f7faf9;border:1px solid var(--linea);
  border-radius:8px;padding:.6rem .8rem;margin:1rem 0}