/* lengia-pages.css — hoja compartida de las páginas SEO de LengIA.
   Paleta y tipografía COPIADAS de la portada original (index.html) para que
   todas las páginas se vean igual: azul #5b8cff → verde #37d399, Sora + Inter.
   Mantener en sincronía con index.html si la portada cambia. */
:root{
  --bg:#070a12; --bg2:#0b1020; --card:#0e1526;
  --line:rgba(148,163,196,.14);
  --fg:#eef2fa; --mut:#8d99b4;
  --acc:#5b8cff; --acc2:#37d399;
  --grad:linear-gradient(92deg,#5b8cff 0%,#37d399 100%);
  --grad2:linear-gradient(135deg,#5b8cff 0%,#8b5cf6 55%,#37d399 100%);
  --r:16px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;overflow-x:hidden}
body{font-family:Inter,system-ui,-apple-system,"Segoe UI",sans-serif;background:var(--bg);color:var(--fg);line-height:1.55;overflow-x:hidden;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4,.display{font-family:Sora,Inter,sans-serif;letter-spacing:-.025em;line-height:1.2}
a{color:var(--acc);text-decoration:none}
a:hover{text-decoration:underline}
em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}
.narrow{max-width:900px}

/* header */
header{position:sticky;top:0;z-index:50;background:rgba(7,10,18,.86);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;gap:24px;padding:14px 0}
.brand{display:flex;align-items:center;gap:10px;margin-right:auto;font-family:Sora,sans-serif;font-weight:700;font-size:19px;color:var(--fg)}
.brand:hover{text-decoration:none}
.brand img{height:34px;width:auto;display:block}
.nav-links{display:flex;align-items:center;gap:20px;flex-wrap:wrap}
/* ⚠️ :not(.btn) imprescindible: sin él, .nav-links a (0,1,1) PISA el color de
   .btn-primary (0,1,0) y el texto del CTA queda gris ilegible sobre el degradado
   (bug ya visto en la portada, 2026-09-13; capturado por QC headless 2026-09-20). */
.nav-links a:not(.btn){color:var(--mut);font-size:14.5px;font-weight:500}
.nav-links a:not(.btn):hover{color:var(--fg);text-decoration:none}
.nav-links a.lang{color:var(--fg);font-weight:600}
@media(max-width:900px){.nav-links{gap:14px}.nav-links a:not(.btn){font-size:13px}}

/* botones */
.btn{display:inline-block;padding:12px 24px;border-radius:12px;font-family:Sora,sans-serif;font-weight:600;font-size:15px;border:1px solid transparent;cursor:pointer;transition:.18s;text-decoration:none}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn-primary{background:var(--grad);color:#06101f}
.btn-ghost{background:rgba(148,163,196,.08);color:var(--fg);border-color:var(--line)}
.btn-ghost:hover{background:rgba(148,163,196,.16)}
.btn-sm{padding:9px 18px;font-size:13.5px}

/* secciones */
main{padding-bottom:40px}
section{padding:64px 0 8px}
.hero{padding:72px 0 24px}
.eyebrow{display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--acc2);margin-bottom:14px}
h1{font-size:clamp(32px,5vw,52px);font-weight:800;margin-bottom:18px}
h2{font-size:clamp(24px,3vw,34px);font-weight:700;margin-bottom:14px}
h3{font-size:clamp(17px,1.9vw,21px);font-weight:700;margin-bottom:8px}
.lead{font-size:clamp(16.5px,1.9vw,19.5px);color:#c9d3e8;margin-bottom:20px;max-width:820px}
p{color:var(--mut);margin-bottom:15px}
.section-sub{color:var(--mut);font-size:16.5px;margin-bottom:10px;max-width:760px}

/* tarjetas y rejillas */
.grid{display:grid;gap:20px;margin-top:26px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
@media(max-width:980px){.g3,.g4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:700px){.g2,.g3,.g4{grid-template-columns:1fr}}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:26px}
.card .ic{font-size:26px;display:block;margin-bottom:12px}
.card h3{font-size:17px;margin-bottom:6px}
.card p{font-size:14.5px;margin:0}
.card ul{color:var(--mut);font-size:14.5px;padding-left:18px;margin-top:8px}
.card ul li{margin-bottom:6px}

/* bloques de contenido */
.panel{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:28px;margin-top:22px}
.panel p:last-child{margin-bottom:0}
.steps{counter-reset:s;margin-top:26px}
.steps .step{position:relative;padding:18px 0 18px 62px;border-bottom:1px solid var(--line)}
.steps .step:last-child{border-bottom:0}
.steps .step::before{counter-increment:s;content:counter(s);position:absolute;left:0;top:16px;width:38px;height:38px;border-radius:50%;display:grid;place-items:center;font-family:Sora,sans-serif;font-weight:700;color:#06101f;background:var(--grad)}
.steps .step h3{font-size:17px;margin-bottom:4px}
.steps .step p{margin:0;font-size:14.5px}
.cases .case{display:flex;gap:16px;padding:18px 0;border-bottom:1px solid var(--line)}
.cases .case:last-child{border-bottom:0}
.cases .case .ic{font-size:22px;flex:0 0 auto}
.cases .case h4{font-size:16px;margin-bottom:4px;font-family:Sora,sans-serif}
.cases .case p{font-size:14.5px;margin:0}

/* precios */
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:26px}
@media(max-width:900px){.plans{grid-template-columns:1fr}}
.plan{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:28px;display:flex;flex-direction:column}
.plan.best{border-color:rgba(91,140,255,.55);box-shadow:0 0 0 1px rgba(91,140,255,.25),0 18px 50px rgba(91,140,255,.12)}
.plan .tag{align-self:flex-start;font-size:11.5px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--acc2);margin-bottom:10px}
.plan .amount{font-family:Sora,sans-serif;font-size:38px;font-weight:800;line-height:1;margin-bottom:4px}
.plan .amount small{font-size:15px;font-weight:600;color:var(--mut)}
.plan h3{font-size:18px;margin:12px 0 10px}
.plan ul{list-style:none;padding:0;margin:0 0 20px;color:var(--mut);font-size:14.5px}
.plan ul li{padding-left:22px;position:relative;margin-bottom:8px}
.plan ul li::before{content:"✓";position:absolute;left:0;color:var(--acc2);font-weight:700}
.plan .btn{margin-top:auto;text-align:center}

/* tabla */
.tbl{width:100%;border-collapse:collapse;margin-top:22px;font-size:14.5px}
.tbl th,.tbl td{text-align:left;padding:12px 14px;border-bottom:1px solid var(--line)}
.tbl th{font-family:Sora,sans-serif;font-size:13px;letter-spacing:.06em;text-transform:uppercase;color:var(--mut);font-weight:700}
.tbl td:first-child{color:var(--fg);font-weight:600}
.tbl td{color:var(--mut)}
.tbl-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}

/* faq */
details.faq{border-bottom:1px solid var(--line);padding:16px 0}
details.faq summary{cursor:pointer;font-family:Sora,sans-serif;font-weight:600;font-size:16px;color:var(--fg);list-style:none}
details.faq summary::-webkit-details-marker{display:none}
details.faq summary::after{content:"+";float:right;color:var(--acc);font-weight:700}
details.faq[open] summary::after{content:"–"}
details.faq p{margin:10px 0 0;font-size:14.5px}

/* cta + footer */
.cta{margin:70px 0 20px;background:var(--bg2);border:1px solid var(--line);border-radius:22px;padding:44px 34px;text-align:center}
.cta h2{margin-bottom:10px}
.cta p{max-width:640px;margin:0 auto 22px}
footer{border-top:1px solid var(--line);margin-top:60px;padding:36px 0 46px;color:var(--mut);font-size:14px}
.foot-grid{display:flex;gap:28px;flex-wrap:wrap;justify-content:space-between}
.foot-col h5{font-family:Sora,sans-serif;font-size:13px;text-transform:uppercase;letter-spacing:.08em;color:var(--fg);margin-bottom:12px}
.foot-col a{display:block;color:var(--mut);margin-bottom:8px}
.foot-col a:hover{color:var(--fg);text-decoration:none}
.foot-legal{border-top:1px solid var(--line);margin-top:26px;padding-top:18px;font-size:13px}
.artlist{list-style:none;padding:0}
.artlist li{border-bottom:1px solid var(--line);padding:16px 0}
.artlist h3{font-size:17px;margin-bottom:4px}
.artlist p{font-size:14.5px;margin:0}
.artlist .meta{font-size:12.5px;color:var(--mut);text-transform:uppercase;letter-spacing:.08em;margin-bottom:6px}
.prose h2{margin-top:34px}
.prose h3{margin-top:24px}
.prose ul,.prose ol{color:var(--mut);padding-left:22px;margin:0 0 16px}
.prose li{margin-bottom:8px}
.prose strong{color:var(--fg)}
.prose blockquote{border-left:3px solid var(--acc);padding-left:16px;color:#c9d3e8;margin:20px 0;font-style:italic}