/* Vervum · el sitio (10/11/2026). La estructura del home de Lineage (primera pantalla con un botón, tres tarjetas con una
   recomendada, tres pasos, «A word about…», preguntas, cierre oscuro y barra del celular), con la marca de Vervum:
   tinta casi negra, papel cálido, verde de la V y títulos en Geist con la segunda línea en Instrument Serif cursiva. */
@font-face{font-family:"Geist";src:url("fonts/geist.woff2") format("woff2");font-weight:100 900;font-display:swap}
@font-face{font-family:"Instrument Serif";src:url("fonts/instrument-serif-latin-400-italic.woff2") format("woff2");font-weight:400;font-style:italic;font-display:swap}
@font-face{font-family:"Instrument Serif";src:url("fonts/instrument-serif-latin-400-normal.woff2") format("woff2");font-weight:400;font-style:normal;font-display:swap}
/* fuentes de reemplazo con las medidas de Geist e Instrument Serif: mientras cargan, el texto ocupa lo mismo y nada se corre */
@font-face{font-family:"Geist Fallback";src:local("Arial"),local("ArialMT"),local("Helvetica Neue"),local("Helvetica");font-weight:400;size-adjust:106.26%;ascent-override:86.58%;descent-override:20.70%;line-gap-override:9.41%}
@font-face{font-family:"Geist Fallback";src:local("Arial Bold"),local("Arial-BoldMT"),local("Helvetica Neue Bold"),local("Helvetica Bold");font-weight:600 700;size-adjust:102.74%;ascent-override:89.55%;descent-override:21.41%;line-gap-override:9.73%}
@font-face{font-family:"Instrument Serif Fallback";src:local("Times New Roman Italic"),local("TimesNewRomanPS-ItalicMT"),local("Times-Italic");font-style:italic;size-adjust:88.43%;ascent-override:111.95%;descent-override:35.06%;line-gap-override:0%}

:root{
  --ink:#0B1015; --ink-2:#262D33; --ink-3:#545D65; --line:#DCDBD3; --line-2:#C9C8BF;
  --paper:#F6F5F0; --white:#FFFFFF; --mist:#EEEDE6;
  --green:#14A877; --green-ink:#0A7552; --green-bright:#1FC28C; --fold:#0A5C43;
  --dark:#0B1015; --dark-2:#11181E; --dark-line:rgba(246,245,240,.12); --dark-ink:#F6F5F0; --dark-ink-2:#B9BFC2;
  --sans:"Geist","Geist Fallback",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --serif:"Instrument Serif","Instrument Serif Fallback",Georgia,"Times New Roman",serif;
  --wrap:1180px; --gutter:clamp(20px,5vw,40px);
  --shadow:0 1px 0 rgba(11,16,21,.04),0 18px 40px -18px rgba(11,16,21,.28);
  --grid:radial-gradient(rgba(11,16,21,.07) 1px,transparent 1.2px) 0 0/22px 22px;
  color-scheme:light;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:84px}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}
body{margin:0;background:var(--paper);color:var(--ink);font:400 18px/1.62 var(--sans);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img{display:block;max-width:100%;height:auto}
a{color:inherit}
p{margin:0 0 1em}
h1,h2,h3{margin:0;font-weight:600;letter-spacing:-.032em;line-height:1.04;text-wrap:balance}
h1 em,h2 em{display:block;font-family:var(--serif);font-style:italic;font-weight:400;letter-spacing:-.012em;color:var(--green-ink);font-size:1.1em;line-height:1}
.oscura h2 em,.cierre h2 em{color:var(--green-bright)}
:focus-visible{outline:3px solid var(--green);outline-offset:3px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.salto{position:absolute;left:12px;top:-60px;background:var(--ink);color:var(--white);padding:10px 16px;z-index:50;text-decoration:none}
.salto:focus{top:12px}

.envoltura{width:min(var(--wrap),100% - 2 * var(--gutter));margin-inline:auto}
.banda{padding:clamp(72px,10vw,128px) 0}
.banda.blanca{background:var(--white)}
.banda.grilla{background:var(--grid),var(--paper)}
.oscura{background:var(--dark);color:var(--dark-ink)}

.kicker{display:flex;align-items:center;gap:12px;margin:0 0 18px;font-size:13px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--green-ink)}
.kicker::before{content:"";width:28px;height:2px;background:currentColor}
.oscura .kicker,.cierre .kicker{color:var(--green-bright)}
.titulo{font-size:clamp(34px,4.6vw,54px);max-width:16ch}
.entrada{font-size:clamp(18px,1.6vw,20px);color:var(--ink-3);max-width:58ch;margin-top:22px}
.oscura .entrada{color:var(--dark-ink-2)}
.cabeza{margin-bottom:clamp(40px,6vw,64px)}
.cabeza.centro{text-align:center}
.cabeza.centro .kicker{justify-content:center}
.cabeza.centro .titulo,.cabeza.centro .entrada{margin-inline:auto}

/* botones: rectos, en mayúsculas, uno por bloque */
.boton{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:58px;padding:0 30px;border:0;border-radius:0;background:var(--ink);color:var(--white);font:600 14px/1 var(--sans);letter-spacing:.1em;text-transform:uppercase;text-decoration:none;cursor:pointer;transition:background .2s,transform .2s}
.boton:hover{background:var(--fold)}
.boton:active{transform:translateY(1px)}
.boton svg{width:16px;height:16px;transition:transform .2s}
.boton:hover svg{transform:translateX(3px)}
.boton.verde{background:var(--green-bright);color:var(--ink)}
.boton.verde:hover{background:var(--white)}
.enlace{display:inline-flex;align-items:center;gap:8px;font-weight:600;color:var(--ink);text-decoration:none;border-bottom:2px solid var(--green);padding-bottom:2px}
.enlace:hover{color:var(--green-ink)}

/* cabecera */
.cabecera{position:sticky;top:0;z-index:30;background:rgba(246,245,240,.86);backdrop-filter:saturate(1.4) blur(14px);-webkit-backdrop-filter:saturate(1.4) blur(14px);border-bottom:1px solid transparent;transition:border-color .2s}
.cabecera.con-borde{border-bottom-color:var(--line)}
.cabecera .envoltura{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.logo{display:flex;align-items:center;text-decoration:none}
.logo img{height:26px;width:auto}
.menu{display:flex;align-items:center;gap:30px}
.menu a{font-size:15px;font-weight:500;color:var(--ink-2);text-decoration:none}
.menu a:hover{color:var(--green-ink)}
.menu .boton{min-height:44px;padding:0 20px;font-size:12.5px;color:var(--white)}
@media (max-width:900px){.menu a:not(.boton){display:none}}

/* primera pantalla */
.portada{padding:clamp(28px,5vw,72px) 0 clamp(64px,8vw,104px);background:var(--grid),var(--paper)}
.portada .envoltura{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:clamp(32px,5vw,72px);align-items:center}
.portada h1{font-size:clamp(42px,6.2vw,78px);max-width:13ch}
.portada .entrada{font-size:clamp(18px,1.7vw,21px);color:var(--ink-2);max-width:34em}
.portada .acciones{display:flex;flex-wrap:wrap;align-items:center;gap:18px 28px;margin-top:34px}
.confianza{display:flex;flex-wrap:wrap;gap:10px 26px;margin:36px 0 0;padding:0;list-style:none;font-size:15px;color:var(--ink-3)}
.confianza li{display:flex;align-items:center;gap:8px}
.tilde{flex:none;width:18px;height:18px;color:var(--green)}
.portada figure{margin:0;position:relative}
.portada figure img{width:100%;aspect-ratio:4/5;object-fit:cover;box-shadow:var(--shadow)}
.portada figure::before{content:"";position:absolute;inset:-14px 14px 14px -14px;border:1px solid var(--line-2);z-index:-1}
.sello{position:absolute;left:-22px;bottom:28px;display:flex;align-items:center;gap:12px;background:var(--white);padding:14px 18px;box-shadow:var(--shadow);font-size:14px;line-height:1.35;max-width:250px}
.sello b{display:block;font-size:15px}
.sello .punto{flex:none;width:10px;height:10px;border-radius:50%;background:var(--green);box-shadow:0 0 0 5px rgba(20,168,119,.16)}
@media (max-width:900px){
  .portada .envoltura{grid-template-columns:1fr}
  .portada figure{margin-top:8px}
  .portada figure img{aspect-ratio:4/3}
  .portada figure::before{display:none}
  .sello{left:12px;bottom:12px}
}
@media (max-width:520px){
  .portada{padding-top:22px}
  .portada .acciones{margin-top:26px}
  .portada .acciones .boton{width:100%}
  .confianza{margin-top:26px;gap:8px 18px;font-size:14.5px}
}

/* la fila de capacidades */
.capacidades{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--paper)}
.capacidades ul{display:flex;flex-wrap:wrap;justify-content:center;gap:10px 18px;margin:0;padding:24px 0;list-style:none;font-size:15px;font-weight:500;letter-spacing:.02em;color:var(--ink-3)}
.capacidades li{display:flex;align-items:center;gap:18px}
.capacidades li+li::before{content:"";width:5px;height:5px;background:var(--green);transform:rotate(45deg)}

/* tarjetas de servicios: tres, una recomendada */
.tarjetas{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px}
.tarjeta{position:relative;display:flex;flex-direction:column;background:var(--white);border:1px solid var(--line);border-top:3px solid var(--green);box-shadow:var(--shadow)}
.tarjeta figure{margin:0;overflow:hidden}
.tarjeta figure img{width:100%;aspect-ratio:3/2;object-fit:cover;transition:transform .6s}
.tarjeta:hover figure img{transform:scale(1.03)}
.tarjeta .cuerpo{display:flex;flex-direction:column;flex:1;padding:28px 28px 30px}
.tarjeta h3{font-size:26px;letter-spacing:-.025em;margin-bottom:12px}
.tarjeta p{color:var(--ink-3);font-size:17px}
.tarjeta ul{margin:4px 0 26px;padding:0;list-style:none;display:grid;gap:10px;font-size:16.5px}
.tarjeta li{display:flex;gap:10px;align-items:flex-start}
.tarjeta li .tilde{margin-top:4px}
.tarjeta .enlace{margin-top:auto;align-self:flex-start}
.etiqueta{position:absolute;top:16px;left:16px;z-index:2;background:var(--ink);color:var(--white);font-size:12px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;padding:8px 12px}
.ademas{margin:40px auto 0;text-align:center;color:var(--ink-3);font-size:17px;max-width:60ch}
@media (max-width:980px){.tarjetas{grid-template-columns:1fr;max-width:620px;margin-inline:auto}}

/* el estándar */
.estandar{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:clamp(36px,6vw,88px);align-items:start}
.estandar figure{margin:0;position:sticky;top:104px}
.estandar figure img{width:100%;aspect-ratio:4/5;object-fit:cover;box-shadow:var(--shadow)}
.principios{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:34px 36px;margin-top:44px}
.principio{border-top:1px solid var(--line-2);padding-top:20px}
.principio .num{display:block;font-family:var(--serif);font-style:italic;font-size:26px;line-height:1;color:var(--green-ink);margin-bottom:10px}
.principio h3{font-size:21px;letter-spacing:-.02em;margin-bottom:8px}
.principio p{margin:0;color:var(--ink-3);font-size:16.5px}
@media (max-width:900px){.estandar{grid-template-columns:1fr}.estandar figure{position:static}.estandar figure img{aspect-ratio:3/2}}
@media (max-width:560px){.principios{grid-template-columns:1fr;gap:26px}}

/* pasos */
.pasos-caja{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(36px,6vw,88px);align-items:center}
.pasos{margin:0;padding:0;list-style:none;display:grid;gap:0}
.paso{display:grid;grid-template-columns:64px 1fr;gap:20px;padding:26px 0;border-top:1px solid var(--line)}
.paso:last-child{border-bottom:1px solid var(--line)}
.paso .n{font-family:var(--serif);font-style:italic;font-size:46px;line-height:.9;color:var(--green-ink)}
.paso h3{font-size:23px;letter-spacing:-.02em;margin-bottom:8px}
.paso p{margin:0;color:var(--ink-3);font-size:17px}
.pasos-caja figure{margin:0}
.pasos-caja figure img{width:100%;aspect-ratio:3/2;object-fit:cover;box-shadow:var(--shadow)}
@media (max-width:900px){.pasos-caja{grid-template-columns:1fr}.pasos-caja figure{order:-1}}

/* trabajos */
.obras{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px}
.obra{margin:0;background:var(--dark-2);border:1px solid var(--dark-line)}
.obra img{width:100%;aspect-ratio:4/5;object-fit:cover}
.obra figcaption{padding:24px 26px 28px}
.obra .tipo{display:block;font-size:12.5px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--green-bright);margin-bottom:10px}
.obra h3{font-size:23px;letter-spacing:-.02em;margin-bottom:10px}
.obra p{margin:0;color:var(--dark-ink-2);font-size:16.5px}
@media (max-width:980px){.obras{grid-template-columns:1fr;max-width:560px;margin-inline:auto}.obra img{aspect-ratio:3/2}}

/* mundo */
.mundo{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:clamp(36px,6vw,88px);align-items:center}
.mundo figure{margin:0}
.mundo figure img{width:100%;aspect-ratio:3/2;object-fit:cover;box-shadow:var(--shadow)}
.lista-tildes{margin:28px 0 0;padding:0;list-style:none;display:grid;gap:14px;font-size:17.5px}
.lista-tildes li{display:flex;gap:12px;align-items:flex-start}
.lista-tildes .tilde{margin-top:5px}
@media (max-width:900px){.mundo{grid-template-columns:1fr}}

/* una palabra */
.palabra{max-width:760px;margin-inline:auto;text-align:center}
.palabra .kicker{justify-content:center}
.palabra .titulo{margin-inline:auto}
.palabra p{font-size:clamp(18px,1.7vw,21px);color:var(--ink-2);margin-top:24px}
.palabra .firma{margin-top:30px;display:inline-flex;align-items:center;gap:12px;font-size:15px;color:var(--ink-3)}
.palabra .firma img{height:20px;width:auto}

/* preguntas */
.preguntas{max-width:860px;margin-inline:auto;border-top:1px solid var(--line-2)}
.preguntas details{border-bottom:1px solid var(--line-2)}
.preguntas summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:20px;padding:24px 0;font-size:20px;font-weight:600;letter-spacing:-.015em}
.preguntas summary::-webkit-details-marker{display:none}
.preguntas summary::after{content:"";flex:none;width:14px;height:14px;background:linear-gradient(var(--ink),var(--ink)) center/14px 2px no-repeat,linear-gradient(var(--ink),var(--ink)) center/2px 14px no-repeat;transition:transform .25s}
.preguntas details[open] summary::after{transform:rotate(45deg)}
.preguntas details p{margin:0 0 26px;color:var(--ink-3);font-size:17.5px;max-width:68ch}

/* contacto */
.contacto{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:clamp(36px,6vw,88px);align-items:start}
.contacto .lista-tildes{font-size:16.5px;color:var(--ink-3)}
.formulario{background:var(--white);border:1px solid var(--line);border-top:3px solid var(--green);box-shadow:var(--shadow);padding:clamp(24px,4vw,40px);display:grid;gap:20px}
.fila{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.campo{display:grid;gap:8px}
.campo label{font-size:14.5px;font-weight:600;color:var(--ink-2)}
.campo label small{font-weight:400;color:var(--ink-3)}
.campo input,.campo select,.campo textarea{width:100%;font:400 17px/1.4 var(--sans);color:var(--ink);background:var(--paper);border:1px solid var(--line-2);border-radius:0;padding:14px 14px;transition:border-color .2s,background .2s}
.campo textarea{min-height:150px;resize:vertical}
.campo select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--ink) 50%),linear-gradient(135deg,var(--ink) 50%,transparent 50%);background-position:calc(100% - 22px) 50%,calc(100% - 16px) 50%;background-size:6px 6px;background-repeat:no-repeat;padding-right:44px}
.campo input:focus,.campo select:focus,.campo textarea:focus{outline:none;border-color:var(--ink);background:var(--white)}
.campo input:user-invalid,.campo textarea:user-invalid{border-color:#B42318}
.trampa{position:absolute!important;left:-10000px!important;width:1px;height:1px;overflow:hidden}
.legal-nota{margin:0;font-size:14px;color:var(--ink-3)}
.legal-nota a{color:var(--ink-2)}
.formulario .boton{width:100%}
.formulario .boton[disabled]{opacity:.6;cursor:progress}
.aviso{margin:0;padding:14px 16px;font-size:15.5px;border-left:3px solid var(--green);background:#EAF6F0;color:var(--ink)}
.aviso.mal{border-left-color:#B42318;background:#FDEEEC}
.aviso[hidden]{display:none}
.enviado{text-align:center;padding:24px 8px}
.enviado .circulo{width:56px;height:56px;margin:0 auto 18px;border-radius:50%;background:var(--green);display:grid;place-items:center;color:var(--white)}
.enviado .circulo svg{width:26px;height:26px}
.enviado h3{font-size:26px;margin-bottom:10px}
.enviado p{color:var(--ink-3);margin:0}
@media (max-width:900px){.contacto{grid-template-columns:1fr}}
@media (max-width:560px){.fila{grid-template-columns:1fr}}

/* cierre */
.cierre{position:relative;overflow:hidden;background:var(--dark);color:var(--dark-ink);text-align:center;padding:clamp(80px,11vw,140px) 0}
.cierre::before{content:"";position:absolute;inset:auto -10% -60% -10%;height:120%;background:radial-gradient(closest-side,rgba(31,194,140,.22),transparent);pointer-events:none}
.cierre .envoltura{position:relative}
.cierre .kicker{justify-content:center}
.cierre h2{font-size:clamp(36px,5vw,62px);max-width:15ch;margin:0 auto 38px}

/* pie */
.pie{background:var(--dark-2);color:var(--dark-ink-2);padding:64px 0 32px;font-size:15px}
.pie .arriba{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;padding-bottom:44px;border-bottom:1px solid var(--dark-line)}
.pie img{height:26px;width:auto;margin-bottom:18px}
.pie p{max-width:34ch;margin:0}
.pie .pie-tit{margin:0 0 14px;font-size:12.5px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--dark-ink)}
.pie ul{margin:0;padding:0;list-style:none;display:grid;gap:10px}
.pie a{text-decoration:none;color:var(--dark-ink-2)}
.pie a:hover{color:var(--white)}
.pie .abajo{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;padding-top:26px;font-size:14px}
@media (max-width:760px){.pie .arriba{grid-template-columns:1fr 1fr}.pie .arriba>div:first-child{grid-column:1/-1}}

/* barra del celular: un solo botón, aparece cuando la primera pantalla sale de la vista */
.barra{position:fixed;left:0;right:0;bottom:0;z-index:40;padding:10px 16px calc(10px + env(safe-area-inset-bottom));background:rgba(246,245,240,.94);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-top:1px solid var(--line);transform:translateY(110%);transition:transform .3s}
.barra.ver{transform:none}
.barra .boton{width:100%;min-height:52px}
@media (min-width:901px){.barra{display:none}}

/* aparición suave al bajar */
.js .aparece{opacity:0;transform:translateY(18px);transition:opacity .7s ease,transform .7s ease}
.js .aparece.visto{opacity:1;transform:none}

/* páginas legales */
.legal{padding:clamp(48px,7vw,96px) 0 clamp(72px,9vw,120px);background:var(--white)}
.legal .envoltura{max-width:780px}
.legal h1{font-size:clamp(38px,5vw,58px);margin-bottom:12px}
.legal .fecha{color:var(--ink-3);font-size:15px;margin-bottom:40px}
.legal h2{font-size:24px;letter-spacing:-.02em;margin:44px 0 14px}
.legal p,.legal li{font-size:17px;color:var(--ink-2)}
.legal ul{padding-left:22px;margin:0 0 1em}
.legal li{margin-bottom:8px}
.legal a{color:var(--green-ink)}

/* 404 */
.perdido{min-height:60vh;display:grid;place-items:center;text-align:center;padding:96px 0;background:var(--grid),var(--paper)}
.perdido h1{font-size:clamp(40px,6vw,72px);margin:0 auto 20px;max-width:12ch}
.perdido p{color:var(--ink-3);margin-bottom:32px}

/* celular: cabecera compacta */
.menu .boton{white-space:nowrap}
@media (max-width:520px){
  .cabecera .envoltura{height:64px}
  .logo img{height:22px}
  .menu .boton{min-height:40px;padding:0 14px;font-size:11.5px;letter-spacing:.08em}
  .kicker{letter-spacing:.13em}
}
.enlace svg{width:16px;height:16px;flex:none;transition:transform .2s}
.enlace:hover svg{transform:translateX(3px)}
.palabra .kicker{font-size:13px;margin-top:0;color:var(--green-ink)}
.titulo{max-width:18ch}

/* la sección de IA (banda oscura): seis casos, la foto del taller, tres pasos y tres garantías */
.ia-caja{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:clamp(36px,6vw,80px);align-items:start}
.ia-caja figure{margin:0;position:sticky;top:104px}
.ia-caja figure img{width:100%;aspect-ratio:3/2;object-fit:cover}
.casos{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 32px;margin-top:44px}
.caso{border-top:1px solid var(--dark-line);padding-top:18px}
.caso h3{font-size:19px;letter-spacing:-.015em;margin-bottom:8px;color:var(--dark-ink)}
.caso p{margin:0;font-size:16px;color:var(--dark-ink-2)}
.ia-pasos{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:32px;margin-top:clamp(56px,7vw,88px);padding-top:clamp(36px,5vw,52px);border-top:1px solid var(--dark-line)}
.ia-paso .n{display:block;font-family:var(--serif);font-style:italic;font-size:44px;line-height:.9;color:var(--green-bright);margin-bottom:14px}
.ia-paso h3{font-size:21px;letter-spacing:-.02em;margin-bottom:8px}
.ia-paso p{margin:0;font-size:16.5px;color:var(--dark-ink-2)}
.ia-garantias{display:flex;flex-wrap:wrap;gap:12px 34px;margin:44px 0 0;padding:22px 0 0;list-style:none;border-top:1px solid var(--dark-line);font-size:16px;color:var(--dark-ink)}
.ia-garantias li{display:flex;align-items:center;gap:10px}
.ia-garantias .tilde{color:var(--green-bright)}
@media (max-width:900px){.ia-caja{grid-template-columns:1fr}.ia-caja figure{position:static;order:-1}.ia-caja figure img{aspect-ratio:3/2}.ia-pasos{grid-template-columns:1fr;gap:26px}}
@media (max-width:560px){.casos{grid-template-columns:1fr;gap:22px}}

/* «What do you need?»: cuatro opciones que se tocan, en lugar de la lista desplegable del sistema */
.opciones{border:0;margin:0;padding:0;min-width:0}
.opciones legend{padding:0;margin-bottom:10px;font-size:14.5px;font-weight:600;color:var(--ink-2)}
.opciones-grilla{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.opcion{position:relative;display:block;cursor:pointer;-webkit-tap-highlight-color:transparent}
.opcion input{position:absolute;inset:0;width:100%;height:100%;margin:0;opacity:0;cursor:pointer}
.op-caja{display:flex;align-items:center;gap:12px;min-height:62px;padding:12px 14px;background:var(--paper);border:1px solid var(--line-2);font-size:15.5px;font-weight:500;line-height:1.25;color:var(--ink-2);transition:border-color .15s,background-color .15s,box-shadow .15s}
.op-caja svg{flex:none;width:22px;height:22px;color:var(--green-ink)}
.op-caja::after{content:"";flex:none;width:20px;height:20px;margin-left:auto;border-radius:50%;border:1.5px solid var(--line-2);background:var(--white)}
.opcion:hover .op-caja{border-color:var(--ink-3);background:var(--white)}
.opcion input:checked + .op-caja{background:var(--white);border-color:var(--ink);box-shadow:inset 0 0 0 1px var(--ink);color:var(--ink);font-weight:600}
.opcion input:checked + .op-caja::after{border-color:var(--green);background:var(--green) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12.5l4.5 4.5L19 7.5'/%3E%3C/svg%3E") center/12px no-repeat}
.opcion input:focus-visible + .op-caja{outline:3px solid var(--green);outline-offset:2px}
.op-caja>span{flex:1;min-width:0}
@media (max-width:600px){.opciones-grilla{grid-template-columns:1fr;gap:8px}.op-caja{min-height:56px;font-size:16px}}
.ia-cta{margin-top:40px}

/* fluidez en el celular: sin desenfoque detrás de la cabecera y la barra (es lo que más cuesta al desplazar) */
@media (max-width:900px){
  .cabecera{background:rgba(246,245,240,.985);backdrop-filter:none;-webkit-backdrop-filter:none}
  .barra{background:rgba(246,245,240,.985);backdrop-filter:none;-webkit-backdrop-filter:none}
}
.js .aparece{transform:translateY(12px);transition:opacity .5s ease,transform .5s ease}