/* Páginas interiores de linfoca.com: servicios de IA (/ia/*) y test de madurez (/test-ia).
   Mismos tokens y lenguaje visual que index.html. */
:root{
  --navy-950:#0B0D2A; --navy-900:#101340; --navy:#1F226B; --navy-600:#2A2E8F; --navy-100:#E9EBFB;
  --orange:#E05A14; --orange-hot:#FF7A3D; --orange-lt:#FDEEE4;
  --paper:#F7F7FC; --surface:#FFFFFF;
  --ink:#14163A; --ink-2:#4C507A; --ink-3:#8A8FB5; --line:#E3E5F2;
  --ok:#2BD98F;
  --r-sm:10px; --r-md:14px; --r-lg:22px; --r-xl:32px; --r-full:9999px;
  --sh-sm:0 1px 3px rgba(11,13,42,.08); --sh-md:0 8px 30px rgba(11,13,42,.10); --sh-lg:0 24px 80px rgba(11,13,42,.18);
  --t-fast:150ms ease; --t:280ms cubic-bezier(.2,.7,.3,1);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'DM Sans',sans-serif;background:var(--paper);color:var(--ink);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
::selection{background:var(--orange);color:#fff}
a{color:inherit;text-decoration:none}
.wrap{max-width:1080px;margin:0 auto;padding:0 24px}
h1,h2,h3,.serif{font-family:'DM Serif Display',serif;font-weight:400;line-height:1.1;letter-spacing:-.015em}
.eyebrow{font-family:'DM Mono',monospace;font-size:12.5px;letter-spacing:.18em;text-transform:uppercase;color:var(--orange);display:inline-flex;align-items:center;gap:10px}
.eyebrow::before{content:"";width:26px;height:1.5px;background:currentColor}
.it{font-style:italic;background:linear-gradient(100deg,var(--orange-hot),#FFB27A);-webkit-background-clip:text;background-clip:text;color:transparent}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:13px 26px;border-radius:var(--r-full);font-weight:700;font-size:15px;cursor:pointer;border:none;transition:all var(--t-fast);font-family:inherit}
.btn-primary{background:linear-gradient(135deg,var(--orange),var(--orange-hot));color:#fff;box-shadow:0 6px 24px rgba(224,90,20,.45)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 32px rgba(224,90,20,.55);filter:brightness(1.06)}
.btn-ghost{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.25)}
.btn-ghost:hover{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.5)}
.btn-line{background:var(--surface);color:var(--navy);border:1.5px solid var(--line)}
.btn-line:hover{border-color:var(--navy);transform:translateY(-2px)}
.btn[disabled]{opacity:.6;cursor:not-allowed;transform:none;filter:none}

/* ── Cabecera oscura ── */
.top{background:var(--navy-950);color:#fff;position:relative;overflow:hidden;padding:24px 0 72px}
.top::before,.top::after{content:"";position:absolute;border-radius:50%;filter:blur(80px);pointer-events:none}
.top::before{width:52vw;height:52vw;background:radial-gradient(circle,#2A2E8F 0%,transparent 60%);top:-26vw;right:-14vw;opacity:.7}
.top::after{width:38vw;height:38vw;background:radial-gradient(circle,rgba(224,90,20,.45) 0%,transparent 65%);bottom:-22vw;left:-10vw}
.top .grid-lines{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);background-size:56px 56px;-webkit-mask-image:radial-gradient(ellipse 80% 70% at 40% 30%,#000 30%,transparent 75%);mask-image:radial-gradient(ellipse 80% 70% at 40% 30%,#000 30%,transparent 75%);pointer-events:none}
.bar{display:flex;align-items:center;justify-content:space-between;gap:16px;position:relative;z-index:2}
.bar img{height:30px;width:auto;display:block}
.bar nav{display:flex;gap:4px;align-items:center}
.bar nav a{color:#C9CCF0;font-size:14.5px;font-weight:500;padding:8px 14px;border-radius:var(--r-full);transition:all var(--t-fast)}
.bar nav a:hover{color:#fff;background:rgba(255,255,255,.08)}
.bar nav a.btn{color:#fff;padding:10px 20px;margin-left:6px}
.top-inner{position:relative;z-index:2;margin-top:64px;display:grid;grid-template-columns:1.25fr .75fr;gap:48px;align-items:end}
.top .eyebrow{color:var(--orange-hot)}
.top h1{font-size:clamp(38px,5.2vw,62px);margin:18px 0 18px}
.top .lead{font-size:clamp(16px,1.6vw,19px);color:#B9BDE6;max-width:620px}
.top-ctas{display:flex;gap:14px;flex-wrap:wrap;margin-top:30px}

/* Ficha de precio y plazo (cabecera) */
.ficha{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:var(--r-lg);padding:26px;backdrop-filter:blur(12px);box-shadow:0 30px 80px rgba(0,0,0,.35)}
.ficha dl{display:grid;gap:16px}
.ficha dt{font-family:'DM Mono',monospace;font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:#8A8FB5}
.ficha dd{font-size:15.5px;color:#fff;font-weight:600}
.ficha dd.precio{font-family:'DM Serif Display',serif;font-weight:400;font-size:40px;line-height:1}
.ficha dd.precio small{font-family:'DM Sans',sans-serif;font-size:13px;color:#B9BDE6;font-weight:500;margin-left:4px}
.ficha .nota{font-size:12.5px;color:#8A8FB5;margin-top:16px;padding-top:14px;border-top:1px solid rgba(255,255,255,.1)}

/* ── Cuerpo ── */
main section{padding:clamp(56px,7vw,88px) 0;border-bottom:1px solid var(--line)}
main section:last-child{border-bottom:none}
main h2{font-size:clamp(28px,3.6vw,40px);margin:12px 0 14px}
main .lead{font-size:17px;color:var(--ink-2);max-width:680px}
.dos{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:34px}
.caja{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:26px 28px;box-shadow:var(--sh-sm)}
.caja h3{font-family:'DM Sans',sans-serif;font-weight:800;font-size:17px;margin-bottom:8px;line-height:1.3}
.caja p{color:var(--ink-2);font-size:15px}
.lista{list-style:none;display:grid;gap:12px;margin-top:6px}
.lista li{display:flex;gap:12px;align-items:flex-start;color:var(--ink-2);font-size:15.5px}
.lista li::before{content:"✓";flex:none;width:24px;height:24px;border-radius:50%;background:var(--orange-lt);color:var(--orange);display:grid;place-items:center;font-size:12px;font-weight:800;margin-top:1px}
.lista li b{color:var(--ink)}
.dolor li::before{content:"–";background:var(--navy-100);color:var(--navy)}

/* Fases con número */
.fases{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:16px;margin-top:34px;counter-reset:fase}
.fase{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;position:relative;box-shadow:var(--sh-sm)}
.fase::before{counter-increment:fase;content:"0" counter(fase);font-family:'DM Serif Display',serif;font-size:44px;color:var(--navy-100);position:absolute;top:10px;right:18px;line-height:1}
.fase .cuando{font-family:'DM Mono',monospace;font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--orange)}
.fase h3{font-family:'DM Sans',sans-serif;font-weight:800;font-size:16.5px;margin:10px 0 6px}
.fase p{font-size:14px;color:var(--ink-2)}

/* FAQ con <details> (sin JS) */
.faq{max-width:820px;margin-top:30px}
.faq details{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);margin-bottom:12px;box-shadow:var(--sh-sm)}
.faq summary{list-style:none;cursor:pointer;padding:20px 24px;font-weight:700;font-size:16px;display:flex;justify-content:space-between;gap:16px;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";flex:none;width:28px;height:28px;border-radius:50%;background:var(--navy-100);color:var(--navy);display:grid;place-items:center;font-size:17px;transition:transform var(--t)}
.faq details[open] summary::after{transform:rotate(45deg);background:var(--orange);color:#fff}
.faq details p{padding:0 24px 22px;color:var(--ink-2);font-size:15px;max-width:66ch}

/* Otros servicios */
.otros{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px;margin-top:28px}
.otros a{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:18px 20px;box-shadow:var(--sh-sm);transition:all var(--t)}
.otros a:hover{transform:translateY(-3px);box-shadow:var(--sh-md);border-color:#f2c9b1}
.otros b{display:block;font-size:15px}
.otros span{font-size:13px;color:var(--ink-3)}

/* Banda final */
.cierre{background:var(--navy-950);color:#fff;border-radius:var(--r-xl);padding:clamp(34px,5vw,56px);position:relative;overflow:hidden;box-shadow:var(--sh-lg);display:grid;grid-template-columns:1.3fr .7fr;gap:30px;align-items:center}
.cierre::before{content:"";position:absolute;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(224,90,20,.45),transparent 65%);top:-200px;right:-120px;filter:blur(30px)}
.cierre>*{position:relative}
.cierre h2{color:#fff;margin-top:0}
.cierre p{color:#B9BDE6}
.cierre .acciones{display:flex;flex-direction:column;gap:12px}

footer{background:#07091F;color:#8A8FB5;padding:30px 0;font-size:13.5px}
footer .wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
footer nav{display:flex;gap:18px;flex-wrap:wrap}
footer a:hover{color:#fff}

/* ── Reveal ── */
.rv{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s cubic-bezier(.2,.7,.2,1)}
.rv.in{opacity:1;transform:none}

@media(max-width:900px){
  .top-inner,.dos,.cierre{grid-template-columns:1fr}
  .bar nav a:not(.btn){display:none}
}
@media(max-width:520px){
  .bar nav a.btn{padding:9px 16px;font-size:14px}
  .top-inner{margin-top:44px}
}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  .rv{opacity:1;transform:none}
}
@media print{
  .top{background:#fff;color:var(--ink);padding:0 0 20px}
  .top::before,.top::after,.top .grid-lines,.bar nav,.top-ctas,footer,.no-print{display:none!important}
  .top h1,.top .lead{color:var(--ink)}
  .rv{opacity:1;transform:none}
  main section{padding:24px 0}
}