/* Línea gráfica del estudio (30/08/2026): azul marino, Lora + Poppins, logo en negativo. Un solo tema, deliberado. */
:root{
  --bg:#12223E;
  --bg-2:#182C4F;
  --bg-3:#1F3660;
  --ink:#FFFFFF;
  --ink-2:#CDD7E8;
  --accent:#96AFD7;
  --num:#4E6896;
  --rule:#7896C8;
  --line:#2A4470;
  --wa:#25D366;
  --wa-ink:#0B1F12;
  --focus:#96AFD7;
  color-scheme:dark;
}
.light{
  --bg:#FFFFFF;--bg-2:#F2F5FA;--bg-3:#E4EAF4;--ink:#12223E;--ink-2:#3C4C69;
  --accent:#0B4A9C;--num:#96AFD7;--rule:#0B4A9C;--line:#D3DBE8;--focus:#0B4A9C;
  background:var(--bg);color:var(--ink)
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:"Poppins","Segoe UI",Roboto,Arial,sans-serif;font-weight:300;
  font-size:17px;line-height:1.6;
}
h1,h2,h3{font-family:"Lora",Georgia,"Times New Roman",serif;font-weight:600;line-height:1.15;margin:0;text-wrap:balance;color:var(--ink)}
h1{font-size:clamp(2rem,6.5vw,3.1rem)}
h2{font-size:clamp(1.55rem,4.8vw,2.1rem)}
h3{font-size:1.2rem;font-weight:500}
p{margin:0}
a{color:inherit}
strong,b{font-weight:500;color:var(--ink)}
:focus-visible{outline:3px solid var(--focus);outline-offset:3px}
.wrap{width:min(100% - 2.5rem,720px);margin-inline:auto}
.eyebrow{font-family:"Poppins",Arial,sans-serif;font-weight:400;font-size:.78rem;letter-spacing:.2em;text-transform:uppercase;color:var(--accent)}
.rule{width:100px;height:2px;background:var(--rule)}

/* header */
.top{border-bottom:1px solid var(--line)}
.top .wrap{position:relative;display:flex;align-items:center;justify-content:center;padding:1.1rem 0}
.mark{display:block;text-decoration:none;color:inherit}
.mark img{height:auto;width:min(72vw,300px);display:block}
.mark b{font-family:"Lora",Georgia,serif;font-weight:600;font-size:1.05rem;line-height:1.1;letter-spacing:.01em;display:block}
.mark small{display:block;font-family:"Poppins",Arial,sans-serif;font-weight:300;font-size:.68rem;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-2);margin-top:.15rem}
.top-cta{display:none;background:var(--ink);color:#fff!important;border-color:var(--ink);font-weight:400;font-size:.92rem;text-decoration:none;padding:.5rem .95rem;border:1px solid var(--rule);border-radius:4px;white-space:nowrap;color:var(--ink)}
.top-cta:hover{background:var(--bg-2)}
@media(min-width:600px){.top-cta{display:inline-block;position:absolute;right:0;top:50%;transform:translateY(-50%)}}

/* hero */
.hero{padding:2.4rem 0 2rem}
.hero .stack{display:grid;gap:1.1rem;justify-items:start}
.hero .lead{font-size:1.25rem;color:var(--ink-2);max-width:34rem}
.btn-wa{
  display:inline-flex;align-items:center;justify-content:center;gap:.6rem;
  background:var(--wa);color:var(--wa-ink);text-decoration:none;
  font-weight:500;font-size:1.05rem;padding:.9rem 1.4rem;border-radius:6px;
}
.btn-wa:hover{filter:brightness(1.06)}
.btn-wa svg{width:22px;height:22px;flex:none}
.hero .note{font-size:.9rem;color:var(--ink-2)}

/* section base */
section{padding:2.5rem 0;background:var(--bg)}
section + section{border-top:1px solid var(--line)}
.sec-head{display:grid;gap:.7rem;margin-bottom:1.4rem;justify-items:start}
.sec-head p:not(.eyebrow){color:var(--ink-2);max-width:36rem}

/* situations */
.after{margin-top:1rem;color:var(--ink-2)}
.sit{list-style:none;margin:0;padding:0;display:grid;gap:.6rem}
.sit li{
  display:grid;grid-template-columns:1fr;gap:.25rem;align-items:start;
  background:var(--bg-2);border:1px solid var(--line);
  padding:.9rem 1.05rem;border-radius:4px;color:var(--ink-2)
}
@media(min-width:560px){.sit li{grid-template-columns:7.5rem 1fr;gap:.9rem}}
.sit li b{font-weight:400;font-size:1.05rem}
.sit li span:first-child{
  font-family:"Poppins",Arial,sans-serif;font-weight:400;color:var(--accent);
  font-size:.75rem;letter-spacing:.16em;padding-top:.3rem;text-transform:uppercase
}


/* quick form */
.qf{display:grid;gap:1rem;background:var(--bg-2);border:1px solid var(--line);border-radius:4px;padding:1.2rem 1.1rem 1.3rem}
.qf label{display:grid;gap:.4rem}
.qf label > span{font-size:.78rem;letter-spacing:.16em;text-transform:uppercase;color:var(--accent)}
.qf select,.qf input{
  width:100%;font:inherit;font-weight:400;font-size:1.02rem;color:var(--ink);
  background:var(--bg);border:1px solid var(--rule);border-radius:4px;padding:.8rem .9rem;
  -webkit-appearance:none;appearance:none
}
.qf select{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%2396AFD7' viewBox='0 0 16 16'%3E%3Cpath d='M3 6l5 5 5-5'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right .9rem center;padding-right:2.4rem}
.qf select:invalid{color:var(--ink-2)}
.qf input::placeholder{color:var(--num)}
.qf button{border:0;cursor:pointer;font-family:inherit;width:100%;margin-top:.2rem}
.qf .opts{border:0;margin:0;padding:0;display:grid;gap:.5rem}
.qf .opts legend{font-size:.78rem;letter-spacing:.16em;text-transform:uppercase;color:var(--accent);padding:0;margin-bottom:.5rem}
.qf .opt{position:relative;display:block;cursor:pointer}
.qf .opt input{position:absolute;opacity:0;width:1px;height:1px}
.qf label.opt > span{text-transform:none;letter-spacing:0}
.qf .opt span{display:block;padding:.85rem 1rem .85rem 2.8rem;border:1px solid var(--rule);border-radius:4px;background:var(--bg);font-weight:400;font-size:1rem;line-height:1.35;color:var(--ink)}
.qf .opt span::before{content:"";position:absolute;left:1rem;top:50%;transform:translateY(-50%);width:18px;height:18px;border-radius:50%;border:2px solid var(--accent);box-sizing:border-box}
.qf .opt input:checked + span{border-color:var(--wa);background:var(--bg-3)}
.qf .opt input:checked + span::before{border-color:var(--wa);background:var(--wa);box-shadow:inset 0 0 0 3px var(--bg-3)}
.qf .opt input:focus-visible + span{outline:3px solid var(--focus);outline-offset:2px}
.dd-wrap{display:grid;gap:.4rem}
.dd-label{font-size:.78rem;letter-spacing:.16em;text-transform:uppercase;color:var(--accent)}
.dd{border:1px solid var(--rule);border-radius:4px;background:var(--bg)}
.dd summary{list-style:none;cursor:pointer;padding:.8rem 2.6rem .8rem .9rem;font-weight:400;font-size:1.02rem;color:var(--ink-2);position:relative}
.dd summary::-webkit-details-marker{display:none}
.dd summary::after{content:"";position:absolute;right:1rem;top:50%;width:9px;height:9px;border-right:2px solid var(--accent);border-bottom:2px solid var(--accent);transform:translateY(-70%) rotate(45deg)}
.dd[open] summary::after{transform:translateY(-30%) rotate(-135deg)}
.dd.has summary{color:var(--ink)}
.dd .opts{padding:.5rem;border-top:1px solid var(--line);gap:.35rem}
.dd .opt span{border-color:transparent;background:transparent;padding:.7rem .9rem .7rem 2.6rem}
.dd .opt span::before{left:.8rem}
.dd .opt input:checked + span{background:var(--bg-3);border-color:var(--wa)}
.qf-note{font-size:.85rem;color:var(--ink-2)}
.qf-err{font-size:.9rem;color:#FFB4B4}

/* steps: a real sequence */
.steps{list-style:none;margin:0;padding:0;display:grid;counter-reset:s}
.steps li{
  counter-increment:s;display:grid;grid-template-columns:3rem 1fr;gap:1rem;
  padding:1.1rem 0;border-top:1px solid var(--line)
}
.steps li:first-child{border-top:0;padding-top:0}
.steps li::before{
  content:"0" counter(s);font-family:"Lora",Georgia,serif;font-weight:600;
  font-size:1.9rem;line-height:1;color:var(--num);font-variant-numeric:tabular-nums
}
.steps h3{margin-bottom:.3rem}
.steps p{color:var(--ink-2)}

.hero-btns{display:flex;flex-wrap:wrap;gap:.7rem;align-items:center}
.btn-ghost{display:inline-flex;align-items:center;justify-content:center;text-decoration:none;font-weight:400;font-size:1.02rem;padding:.85rem 1.3rem;border:1.5px solid var(--rule);border-radius:6px;color:var(--ink)}
.btn-ghost:hover{background:var(--bg-2)}
.pilares{list-style:none;margin:0 0 1.2rem;padding:0;display:grid;gap:.6rem}
@media(min-width:600px){.pilares{grid-template-columns:repeat(3,1fr)}}
.pilares li{display:grid;gap:.3rem;background:var(--bg-2);border:1px solid var(--line);border-top:3px solid var(--accent);border-radius:4px;padding:1rem 1.05rem 1.1rem}
.pilares b{font-family:"Lora",Georgia,serif;font-weight:600;font-size:1.15rem;color:var(--ink)}
.pilares span{color:var(--ink-2);font-size:.98rem;line-height:1.45}

/* who */
.who{background:var(--bg-2);border:1px solid var(--line);border-radius:4px;padding:1.3rem 1.3rem 1.4rem;display:grid;gap:1.2rem}
.who .row{display:grid;gap:1.2rem}
@media(min-width:560px){.who .row{grid-template-columns:1fr 1fr}}
.who dl{margin:0;display:grid;gap:.15rem}
.who dt{font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--accent);font-weight:400}
.who dd{margin:0}
.who .name{font-weight:500;color:var(--ink)}
.who .mat{font-size:.9rem;color:var(--ink-2)}

/* faq */
.faq{display:grid;gap:.45rem}
details{background:var(--bg-2);border:1px solid var(--line);border-radius:4px}
summary{cursor:pointer;padding:.9rem 1.05rem;font-weight:400;color:var(--ink);list-style:none;display:flex;justify-content:space-between;gap:1rem;align-items:center}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";font-family:"Lora",Georgia,serif;font-size:1.5rem;line-height:1;color:var(--accent);flex:none}
details[open] summary::after{content:"\2013"}
details .a{padding:0 1.05rem 1rem;color:var(--ink-2)}

/* final cta */
.final{background:var(--bg-3);padding:2.6rem 0 2.8rem}
.final .stack{display:grid;gap:1rem;justify-items:start}
.final .alt{margin-top:.4rem;font-size:.92rem;color:var(--ink-2)}
.final .alt a{color:var(--ink)}

.contacts{list-style:none;margin:.6rem 0 0;padding:0;display:grid;gap:.55rem}
.contacts a{display:inline-flex;align-items:center;gap:.7rem;text-decoration:none;color:var(--ink);font-weight:400;font-size:.98rem}
.contacts a:hover span{text-decoration:underline}
.contacts svg{width:22px;height:22px;flex:none;color:var(--accent)}

.guias{list-style:none;margin:0;padding:0;display:grid;gap:.6rem}
.guias a{display:grid;gap:.15rem;text-decoration:none;color:var(--ink);background:var(--bg-2);border:1px solid var(--line);border-left:4px solid var(--accent);border-radius:4px;padding:.9rem 1.05rem}
.guias a span{font-family:"Lora",Georgia,serif;font-weight:600;font-size:1.15rem}
.guias a small{font-size:.92rem;color:var(--ink-2)}
.guias a:hover{background:var(--bg-3)}

/* marca de agua: escudo */
section{position:relative;overflow:hidden}
section > .wrap{position:relative;z-index:1}
section::before{content:"";position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:min(88vw,520px);aspect-ratio:1/1;background:url("/img/logo-39658e8a.png") no-repeat center/contain;opacity:.055;pointer-events:none}
section.light::before{background-image:url("/img/logo-5825cc62.png");opacity:.05}

/* footer */
footer{padding:1.8rem 0 2.2rem;font-size:.82rem;color:var(--ink-2);border-top:1px solid var(--line)}
footer .wrap{display:grid;gap:.6rem}
footer .pie{font-size:.72rem;letter-spacing:.24em;text-transform:uppercase;color:var(--accent);margin-bottom:.4rem}
@media(min-width:600px){footer{padding-bottom:2.2rem}}

/* sticky mobile bar */
.bar{
  position:fixed;left:0;right:0;bottom:0;z-index:20;
  background:var(--bg);border-top:1px solid var(--line);
  padding:.6rem 1rem calc(.6rem + env(safe-area-inset-bottom));
}
.bar .btn-wa{width:100%;padding:.85rem 1rem}
@media(min-width:600px){.bar{display:none}}
@media(prefers-reduced-motion:no-preference){
  .btn-wa{transition:transform .12s ease}
  .btn-wa:active{transform:translateY(1px)}
}

/* ---- guías dentro de la misma página ---- */
.vista[hidden]{display:none}
.guia section::before{display:none}
.sec-head + .sec-head{margin-top:1.8rem}
.steps p + p{margin-top:.5rem}
.stepbtn{margin-top:.6rem;display:flex;flex-wrap:wrap;gap:.5rem}
.btn-out{display:inline-block;text-decoration:none;font-weight:400;font-size:.98rem;padding:.65rem 1rem;border:1.5px solid var(--accent);border-radius:6px;color:var(--ink)}
.btn-out:hover{background:var(--bg-2)}
.aviso{background:var(--bg-2);border:1px solid var(--line);border-left:3px solid var(--rule);border-radius:4px;padding:1rem 1.1rem;color:var(--ink-2);margin-top:1.2rem}
.sit li{grid-template-columns:1fr;gap:.35rem;padding:1rem 1.1rem}
@media(min-width:560px){.sit li{grid-template-columns:8rem 1fr;gap:1rem}}
.sit li .lbl{font-family:"Poppins",Arial,sans-serif;font-weight:400;color:var(--accent);font-size:.75rem;letter-spacing:.16em;padding-top:.35rem;text-transform:uppercase}
.sit li b{display:block;font-weight:500;color:var(--ink);font-size:1.05rem;margin-bottom:.25rem}
.sit li p + p{margin-top:.5rem}
.guia .final{background:var(--bg)}
.guia .final .alt a{color:var(--ink-2)}
.guia .volver{font-size:.92rem;color:var(--ink-2)}
.guia .volver a{color:var(--ink-2)}
body.en-guia footer{padding-bottom:5.5rem}
@media(min-width:600px){body.en-guia footer{padding-bottom:2.2rem}}

/* calculadoras */
.guias + .sec-head{margin-top:2.2rem}
.tabs{display:grid;grid-template-columns:1fr;gap:.5rem;margin-bottom:1.2rem}
@media(min-width:600px){.tabs{grid-template-columns:repeat(3,1fr)}}
.tabs button{font:inherit;font-weight:400;font-size:1rem;cursor:pointer;padding:.85rem .8rem;border:1px solid var(--rule);border-radius:4px;background:var(--bg);color:var(--ink-2);text-align:center}
.tabs button[aria-selected=true]{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.tabs button:focus-visible{outline:3px solid var(--focus);outline-offset:2px}
.calc-head{background:var(--ink);color:var(--bg);border-radius:4px 4px 0 0;padding:1.1rem 1.2rem}
.calc-head h3{color:var(--bg);font-family:"Lora",Georgia,serif;font-weight:600;font-size:1.3rem;margin-bottom:.3rem}
.calc-head p{color:#CDD7E8;font-size:.95rem}
.qf.calc{border-radius:0 0 4px 4px;border-top:0}
.modo{display:grid;grid-template-columns:1fr 1fr;gap:.4rem;background:var(--bg-3);padding:.3rem;border-radius:4px}
.tab{position:relative;cursor:pointer}
.tab input{position:absolute;opacity:0;width:1px;height:1px}
.qf label.tab > span{text-transform:none;letter-spacing:0;font-size:.95rem;color:var(--ink-2)}
.tab span{display:block;text-align:center;padding:.7rem .4rem;border-radius:4px;font-weight:400}
.tab input:checked + span{background:var(--ink);color:var(--bg)}
.tab input:focus-visible + span{outline:3px solid var(--focus);outline-offset:2px}
.qf label[hidden]{display:none}
.qf label.check{display:flex;gap:.7rem;align-items:flex-start;cursor:pointer}
.qf label.check input{width:20px;height:20px;margin:.15rem 0 0;flex:none;accent-color:var(--accent)}
.qf label.check span{font-size:.95rem;letter-spacing:0;text-transform:none;color:var(--ink-2)}
.qf input[type=date],.qf input[type=number],.qf select{min-height:3.1rem}
.qf select{color:var(--ink)}
.qf .pin{background:var(--bg-3);border-left:3px solid var(--accent);border-radius:4px;padding:.9rem 1rem;font-size:.9rem;color:var(--ink-2)}
.qf .pin b{display:block;margin-bottom:.2rem}
.btn-calc{background:var(--ink);color:var(--bg)}
.btn-calc:hover{filter:none;background:var(--bg-3);color:var(--ink)}
.res{margin-top:1rem;border:1px solid var(--accent);border-radius:4px;overflow:hidden}
.res .res-h{background:var(--accent);color:#fff;padding:.7rem 1.2rem;font-weight:500;font-size:.95rem}
.res .res-b{padding:1.1rem 1.2rem 1.2rem;color:var(--ink-2)}
.res .lbl{font-size:.78rem;letter-spacing:.16em;text-transform:uppercase;color:var(--accent)}
.res .big{font-family:"Lora",Georgia,serif;font-size:clamp(1.6rem,6vw,2.3rem);color:var(--ink);line-height:1.15;margin:.2rem 0 .9rem}
.res .rows{display:grid;gap:.45rem;border-top:1px solid var(--line);padding-top:.8rem}
.res .rows div{display:flex;justify-content:space-between;gap:1rem;font-size:.95rem}
.res .rows div span:last-child{text-align:right;color:var(--ink);font-weight:400}
.res .rows div.tot span{font-weight:500}
.res .exc{margin-top:.9rem;border-top:1px solid var(--line);padding-top:.8rem}
.res .exc b{display:block;font-weight:500;color:var(--ink);font-size:.95rem;margin-bottom:.5rem}
.chips{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:.4rem}
.chips li{background:var(--bg-3);border:1px solid var(--line);border-radius:999px;padding:.35rem .8rem;font-size:.85rem;color:var(--ink)}
.res .warn{margin-top:.8rem;font-size:.85rem;color:var(--ink-2)}
.fer{list-style:none;margin:0;padding:0;display:grid;gap:.4rem}
.fer li{display:grid;grid-template-columns:5.6rem 1fr;gap:.2rem .6rem;align-items:baseline;font-size:.95rem}
.fer li span:first-child{font-variant-numeric:tabular-nums;color:var(--ink)}
.fer li small{grid-column:2;font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--accent)}
.nota{display:block;margin-top:.6rem;font-size:.85rem}