/* ============================================================
   Anfibio — sistema de diseño v1 (agosto 2026)
   Concepto: "vive en dos medios" — prosa humana + dato estructurado.
   Paleta laguna/tinta/papel · Archivo + Source Serif 4 + IBM Plex Mono
   ============================================================ */
:root{
  --laguna:#0E7A61; --laguna-deep:#0A5747; --laguna-bright:#12987A;
  --nenufar:#E2F0EA; --nenufar-soft:#F0F6F2;
  --rio:#2F6C8F; --rio-soft:#E7EFF4;
  --ambar:#A3691C; --ambar-soft:#F7EEDD;
  --tinta:#17241F; --tinta-soft:#53645C;
  --papel:#FAFAF7; --blanco:#FFFFFF; --linea:#DFE7E1;
  --sombra:0 1px 2px rgba(23,36,31,.06),0 4px 16px rgba(23,36,31,.06);
  --radio:10px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--papel);color:var(--tinta);
  font-family:'Source Serif 4',Georgia,serif;font-size:17px;line-height:1.65;
  -webkit-font-smoothing:antialiased}
h1,h2,h3,h4,.ui{font-family:Archivo,'Helvetica Neue',Arial,sans-serif;letter-spacing:-.015em;line-height:1.15;text-wrap:balance}
h1{font-size:clamp(1.9rem,4.5vw,2.8rem);font-weight:800;margin:0 0 .6rem}
h2{font-size:clamp(1.35rem,3vw,1.75rem);font-weight:700;margin:0 0 .8rem}
h3{font-size:1.12rem;font-weight:700;margin:1.8rem 0 .5rem}
h4{font-size:.98rem;font-weight:600;margin:1.2rem 0 .4rem}
p{margin:.6rem 0}
a{color:var(--laguna);text-decoration-thickness:1px;text-underline-offset:2px}
a:hover{color:var(--laguna-deep)}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--laguna);outline-offset:2px;border-radius:3px}
.mono,td.n,.verif,.chip{font-family:'IBM Plex Mono',ui-monospace,monospace;font-variant-numeric:tabular-nums}
.wrap{max-width:1140px;margin:0 auto;padding:0 clamp(1rem,4vw,2rem)}
.prose{max-width:70ch}
img,svg{max-width:100%}

/* ---------- Header / nav (patrón NerdWallet adaptado) ---------- */
.top{position:sticky;top:0;z-index:50;background:var(--blanco);border-bottom:1px solid var(--linea)}
.top .bar{display:flex;align-items:center;gap:1.2rem;padding:.7rem 0}
.logo{display:flex;align-items:center;gap:.5rem;text-decoration:none;color:var(--tinta)}
.logo strong{font-family:Archivo,sans-serif;font-weight:800;font-size:1.35rem;letter-spacing:-.03em}
.logo strong i{font-style:normal;color:var(--laguna)}
.logo .tag-line{display:none}
nav.main{margin-left:auto}
nav.main ul{display:flex;gap:.2rem;list-style:none;margin:0;padding:0;align-items:center}
nav.main a{font-family:Archivo,sans-serif;font-size:.9rem;font-weight:600;color:var(--tinta);
  text-decoration:none;padding:.5rem .7rem;border-radius:6px}
nav.main a:hover{background:var(--nenufar-soft);color:var(--laguna-deep)}
nav.main a.cta{background:var(--laguna);color:#fff;padding:.55rem 1rem;border-radius:8px;margin-left:.4rem}
nav.main a.cta:hover{background:var(--laguna-deep)}
.nav-toggle{display:none}
label.burger{display:none;margin-left:auto;cursor:pointer;padding:.4rem;border-radius:6px}
label.burger span{display:block;width:22px;height:2px;background:var(--tinta);margin:5px 0;border-radius:2px}
@media(max-width:900px){
  label.burger{display:block}
  nav.main{position:absolute;left:0;right:0;top:100%;background:var(--blanco);
    border-bottom:1px solid var(--linea);display:none;box-shadow:var(--sombra)}
  .nav-toggle:checked ~ nav.main{display:block}
  nav.main ul{flex-direction:column;align-items:stretch;padding:.6rem 1rem 1rem}
  nav.main a{display:block;padding:.7rem .6rem}
  nav.main a.cta{margin:.4rem 0 0;text-align:center}
}

/* ---------- Hero ---------- */
.hero{background:linear-gradient(180deg,var(--nenufar-soft),var(--papel));
  border-bottom:1px solid var(--linea);padding:3rem 0 2.4rem}
.hero h1{max-width:19ch}
.hero .lede{font-size:1.15rem;color:var(--tinta-soft);max-width:56ch;margin:.6rem 0 1.4rem}
.buscador{position:relative;max-width:560px}
.buscador input{width:100%;font-family:Archivo,sans-serif;font-size:1rem;padding:.85rem 1.1rem;
  border:2px solid var(--tinta);border-radius:12px;background:var(--blanco);color:var(--tinta)}
.buscador input::placeholder{color:var(--tinta-soft)}
.sugerencias{position:absolute;left:0;right:0;top:calc(100% + 6px);background:var(--blanco);
  border:1px solid var(--linea);border-radius:10px;box-shadow:var(--sombra);
  max-height:300px;overflow-y:auto;display:none;z-index:20}
.sugerencias.abierta{display:block}
.sugerencias a{display:block;padding:.6rem .9rem;font-family:Archivo,sans-serif;font-size:.88rem;
  text-decoration:none;color:var(--tinta);border-bottom:1px solid var(--nenufar-soft)}
.sugerencias a:hover{background:var(--nenufar-soft)}
.sugerencias .vacio{padding:.6rem .9rem;font-size:.85rem;color:var(--tinta-soft)}

/* ---------- Tiles de ramos ---------- */
.tiles{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:.7rem;margin:1.2rem 0}
.tile{display:flex;flex-direction:column;gap:.35rem;background:var(--blanco);border:1px solid var(--linea);
  border-radius:var(--radio);padding:.9rem .9rem .8rem;text-decoration:none;color:var(--tinta);
  font-family:Archivo,sans-serif;font-weight:600;font-size:.9rem;transition:border-color .15s,transform .15s}
.tile:hover{border-color:var(--laguna);transform:translateY(-2px);color:var(--laguna-deep)}
.tile .ico{font-size:1.3rem;line-height:1}
.tile small{font-weight:400;color:var(--tinta-soft);font-size:.75rem;line-height:1.3}
@media (prefers-reduced-motion:reduce){.tile,.tile:hover{transition:none;transform:none}}

/* ---------- Franjas y módulos ---------- */
.franja{padding:2.6rem 0}
.franja.alt{background:var(--blanco);border-top:1px solid var(--linea);border-bottom:1px solid var(--linea)}
.franja.laguna{background:var(--laguna-deep);color:#fff}
.franja.laguna h2{color:#fff}
.franja.laguna a{color:#CBEADF}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem;margin:1.2rem 0}
.stat b{display:block;font-family:'IBM Plex Mono',monospace;font-size:1.7rem;color:var(--laguna);font-weight:600}
.franja.laguna .stat b{color:#8FD6C0}
.stat span{font-family:Archivo,sans-serif;font-size:.85rem;color:var(--tinta-soft)}
.franja.laguna .stat span{color:#BFD9CF}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1rem;margin:1.2rem 0}
.card{background:var(--blanco);border:1px solid var(--linea);border-radius:var(--radio);padding:1.1rem 1.2rem;box-shadow:none}
.card h3{margin-top:.2rem}
.card .ui-link{font-family:Archivo,sans-serif;font-weight:600;font-size:.88rem;text-decoration:none}
.card .ui-link::after{content:" →"}

/* ---------- Tablas de datos ---------- */
.tbl{overflow-x:auto;border:1px solid var(--linea);border-radius:var(--radio);background:var(--blanco);margin:1rem 0}
table{border-collapse:collapse;width:100%;font-size:.9rem;font-family:Archivo,sans-serif}
th{background:var(--nenufar-soft);text-align:left;font-size:.72rem;letter-spacing:.06em;text-transform:uppercase;
  color:var(--tinta-soft);padding:.6rem .8rem;border-bottom:1px solid var(--linea)}
td{padding:.65rem .8rem;border-bottom:1px solid var(--linea);vertical-align:top}
tr:last-child td{border-bottom:none}
td.n{text-align:right;white-space:nowrap}
caption{caption-side:bottom;text-align:left;font-size:.78rem;color:var(--tinta-soft);padding:.6rem .8rem;font-family:'Source Serif 4',serif}

/* ---------- Bloques editoriales ---------- */
.respuesta{border-left:4px solid var(--laguna);background:var(--nenufar);border-radius:0 10px 10px 0;
  padding:1rem 1.2rem;margin:1.2rem 0;font-size:1.02rem}
.respuesta strong:first-child{font-family:Archivo,sans-serif;font-size:.72rem;letter-spacing:.09em;
  text-transform:uppercase;color:var(--laguna-deep);display:block;margin-bottom:.3rem}
.aviso{border-left:4px solid var(--ambar);background:var(--ambar-soft);border-radius:0 10px 10px 0;
  padding:.9rem 1.1rem;margin:1.2rem 0;font-size:.92rem}
.fuente{border-left:4px solid var(--rio);background:var(--rio-soft);border-radius:0 10px 10px 0;
  padding:.9rem 1.1rem;margin:1.2rem 0;font-size:.88rem}
.verif{display:inline-block;font-size:.75rem;color:var(--tinta-soft);background:var(--nenufar-soft);
  border:1px solid var(--linea);border-radius:99px;padding:.15rem .7rem;margin:.2rem 0}
.chip{display:inline-block;font-size:.7rem;font-weight:600;padding:.12rem .55rem;border-radius:99px;
  background:var(--nenufar);color:var(--laguna-deep)}
.chip.pend{background:var(--ambar-soft);color:var(--ambar)}
details.faq{border:1px solid var(--linea);border-radius:var(--radio);background:var(--blanco);margin:.5rem 0}
details.faq summary{cursor:pointer;padding:.8rem 1rem;font-family:Archivo,sans-serif;font-weight:600;font-size:.95rem}
details.faq[open] summary{border-bottom:1px solid var(--linea)}
details.faq .resp{padding:.6rem 1rem .9rem}
ul,ol{padding-left:1.3rem;margin:.6rem 0}
li{margin:.3rem 0}
li::marker{color:var(--laguna)}

/* ---------- Migas y estructura de página ---------- */
.migas{font-family:Archivo,sans-serif;font-size:.78rem;color:var(--tinta-soft);padding:1rem 0 .2rem}
.migas a{color:var(--tinta-soft);text-decoration:none}
.migas a:hover{color:var(--laguna)}
.migas span{margin:0 .35rem;color:var(--linea)}
main.pagina{padding:0 0 3.5rem}
.encabezado{padding:1.2rem 0 1.6rem;border-bottom:1px solid var(--linea);margin-bottom:1.8rem}
.encabezado .lede{color:var(--tinta-soft);font-size:1.08rem;max-width:64ch;margin:.5rem 0 .8rem}
.grid-guias{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:.9rem;margin:1rem 0}
.g-item{background:var(--blanco);border:1px solid var(--linea);border-radius:var(--radio);padding:.9rem 1rem;
  font-family:Archivo,sans-serif;font-size:.92rem}
.g-item a{font-weight:600;text-decoration:none}
.g-item p{font-family:'Source Serif 4',serif;font-size:.85rem;color:var(--tinta-soft);margin:.35rem 0 0}
.firma{display:flex;flex-wrap:wrap;gap:.5rem 1.4rem;align-items:center;font-family:Archivo,sans-serif;
  font-size:.8rem;color:var(--tinta-soft);border-top:1px solid var(--linea);border-bottom:1px solid var(--linea);
  padding:.6rem 0;margin:1rem 0}

/* ---------- Newsletter / CTA ---------- */
.news{background:var(--laguna-deep);color:#fff;border-radius:14px;padding:1.6rem 1.6rem;margin:2rem 0}
.news h2,.news h3{color:#fff;margin-top:0}
.news p{color:#CBEADF;max-width:60ch}
.news form{display:flex;gap:.6rem;flex-wrap:wrap;margin-top:.9rem}
.news input[type=email]{flex:1 1 240px;padding:.75rem 1rem;border-radius:9px;border:none;font-family:Archivo,sans-serif;font-size:.95rem}
.news button{background:#fff;color:var(--laguna-deep);font-family:Archivo,sans-serif;font-weight:700;
  border:none;border-radius:9px;padding:.75rem 1.3rem;font-size:.95rem;cursor:pointer}
.news button:hover{background:var(--nenufar)}
.news small{color:#9FC8BA;display:block;margin-top:.5rem;font-family:Archivo,sans-serif}

/* ---------- Herramientas ---------- */
.calc{background:var(--blanco);border:1px solid var(--linea);border-radius:var(--radio);padding:1.2rem 1.3rem;margin:1.2rem 0}
.calc label{display:block;font-family:Archivo,sans-serif;font-weight:600;font-size:.88rem;margin:.8rem 0 .25rem}
.calc input,.calc select{width:100%;max-width:340px;padding:.6rem .8rem;border:1px solid var(--linea);
  border-radius:8px;font-family:'IBM Plex Mono',monospace;font-size:.95rem;background:var(--papel);color:var(--tinta)}
.calc .resultado{margin-top:1.1rem;padding:1rem 1.1rem;background:var(--nenufar);border-radius:10px;
  font-family:'IBM Plex Mono',monospace;font-size:1.05rem}
.calc .metodo{font-size:.85rem;color:var(--tinta-soft);margin-top:.8rem}

/* ---------- Footer ---------- */
footer.pie{background:var(--tinta);color:#C6D2CB;margin-top:3rem;padding:2.4rem 0 2rem;font-size:.88rem}
footer.pie a{color:#9FD0BF;text-decoration:none}
footer.pie a:hover{text-decoration:underline}
.pie-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:1.4rem;margin-bottom:1.6rem}
.pie-grid h4{color:#fff;font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;margin:0 0 .6rem}
.pie-grid ul{list-style:none;padding:0;margin:0}
.pie-grid li{margin:.35rem 0;font-family:Archivo,sans-serif}
.legal{border-top:1px solid #2C3A33;padding-top:1.2rem;font-size:.78rem;color:#8FA096;line-height:1.6}